Document 6580032

Feb.` 20, 1951
H. B. BARRETT
2,542,616
METAL TURNING AND TRUING MACHINE
Filed Aug. 16, 1946
y
5 Sheets-Sheet 1
EFWMÚW‘
Feb. 20, 1951
'
H. B. BARRETT
2,542,616
METAL TURNING AND TRUING MACHINE
Filed Aug. 16, 1946
_
5 Sheets-Sheet 2
[Nl/Furore
HAR/er 5 BÄR/@ETT
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Í ¿7.4%
Feb. 20, 1951
H. B. BARRETT
METAL TURNING AND TRUING MACHINE
Filed Aug. 16, 1946
2,542,616
Feb. 2o, 1951
H. B. BARRETT
2,542,616
METAL TURNING AND TRUING MACHINE
Filed Aug; 1e, 194e
'5 Sheets-Sheet 4
HTTOÑA/EY,
Feb. 20, 1951
2,542,616
H. B. BARRETT
METAL TURNING AND TRUING MACHINE
Filed Aug. 16, 1946
5 Sheets-Sheet 5
„n
BY
m
„_ W5T .m„5.Z
We@.y
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A
Patented Feb. 20, 1951
2542516 ’
.PATENT ' OFFICE
. l 2,542,616
y
TURNING AND TRUIÑG MACHINE
` tHarry,B..l?»_arrett, vSt. Lo.u_is,_Mo.
Application VvAugust 16, 1946,-Serial No".'~"690,896
, 5. Claims.
(Cl. 771-2)
, l
; 'Iëhisïinvention‘relates agenerallygto metal ¿turn
vmine. and; truingf machines; and-inxfpartioularrto
H_new and-useful improvements in „lathe- typexmetal
turning ¿machines-.of a; character.’ adaptedçfonuse
`
~ 2
~. arfragmentarysectional eleva-tional» viewfof the
.z-¿same> corner construction;
. ' AFigure '7.Y is an; enlarged zand» partial l» sectional
elevational :vievvççofl the mounting arbor,- brake
5; ïdrumlcenteringemeans and adjustable disconnect
- :the: like, falthough'fthe «fsarneg>> is- not necessarily :.:iîltting- atfthefoutboard supporting- means when
.y limitedtosuch particularuse.
l.assembled -and inoperative position with respect
- -'l’he'objtìcts of my» inventìonfgreside; in the-pro
î. `tofth‘e lathe cutting »toolîassemblm
iäfFigure 8- is aview similar` to-.that of -the- pre
~_~_ noted :_whichf, is simp1e;..;durab1e: and economical ~ .lûceding ¿_illustrationy ; but-.indicating a >modiiied
-r in,` construction; which; is accurate _.;and freliably ,e _adjustable disconnectfñtting;
;zivision- r,of a.;.lathe for. machine of ¿the-„character
preciseqin meta‘ltturning operations, i which; is; ad
_, .,justable for; aigwide. variety,` of Work», fand'gvvhichjs
¿"«Figure 9.»y is a ~fragmentary»iView; inelevatìOIL-î. of
i etheginboardadjustable assembly =for=attaching the
. f Auniversally¿adaptable td‘situationsand, conditions
» track=rneans~=vvith «the` lathefstandardr thisrview
f.;~.met-:.in..actua1 service?ssuch -asiturnina f grinding, ‘w15 ¿beigngvtaken at line 9f-9 in Figure l;
l.truing andk y.vvork-„surfacingaon.various types-.and
n Figure 10 is a‘further sectional detail .vievvof
f -. sizes'ofibrake-drums.
the inboard adjustable attachment means .for-the
.ult is a'lfurtherzobiectofgmy present: invention i-.traclç assembly-as î:seen along line i»IIL-TH) inflï‘ig~
- . to Vprovide a brakefdrum lathe which» .canfbe read
¿iure 9; -
ily » converted from a 'stationaryzgtype of. machine' 20
Q.; ,to aportable.> machine, .so- that, ¿as the ¿particular
-needsfoï- the yjob 4may require; the Work-¿may either
.,.:„be `brought -to , the~ machine or z.the:=machine.;may
ï ~be.-;br.o.ught; to ' the. .work and, z'furthermoregwhen
Figurefllis a perspectiveview of- my invention
1j;illustratingthefsame «in a `form adapted; for port
v. “ability of fthe-¿entire - assembly-.auditor adjusting
' --Df its maj or components;
I; y«Figure î 12- is> a « fragmentary 1 elevational view. of
l¿themachine is brought to _theworkgitisfcapable 125 apart of ¿the fassemblyfshown in `vFigure 11; »and
v `Figure .-13 is, af-perspectivev-v-iew of the »portable
. » of; handling» rbrake-drums. alone -z' with. the~ :pneu
f: matic «.tirefremoved‘.from the/wheel «or brake
.. drums; -lon ‘.-Wheels .f from; :+ which: the.: tires.. have
arrangement of: myîpresent» invention- set up for
«çfroperation'upon-the brake-drumfof a Wheelffrom
A , not-_vr been @removed ¿and which . are; accordingly,
:1 whichîthetireand Wheel. have »not been removed.
; supported .by,.~.the„ztire;„1vvhee1 hubnor: rim,tfthus ..30
Referringnovv in morevdetaiLzand by reference
g.: providing afmachine “which is. .capable .of.=.;meet- >»characters to thedrawings»,- Adesignates abrake
- ingl prac-ticallyf every type of :brake-.drum turning
:encountered in, automotive repair shops.
ç _And with . the :above and; other.r> objects infvievv,
-;. drum «lathe» comprising-»an . operating» „headflä
A„suitably emounted- von a‘fbase» or standard - I6
@adapted-»to Vrest` on a.-leve1 floor or-,support . In
army ; inventionfresides. rin ¿thev novel features `ofy ;35 co-operation with the „based 6~ is a- trackway .B
çform,.f constructiom; arrangement,v and» combina
f: '_tion. of ».partspresently ldescribeclm-and ¿pointed tout
in the claims.
. -Inthe accompany-ing;drawings; (ñve Sheets),
:connected vvith~the Abase meanselß at one of` its
¿zendsand’supported in a :level position-by aleg
: likeend-frame orsupport l1.
'
f Provided ~for shiftable „movement Valong \ the
_; 'Figure 1- is a perspective view of a lathe.- con-n. ‘40„vtrackway B toward and avvayfrom the-'lathe A
ystructeo‘l; in . ¿accordance with; and g embodying @my
. "is `agmovable voutboard carriage assembly Cl which,
~f;:,.;~inv_ention;
f-in >co-operation vvithcertain- other , parts :and ele
Eigure 2~ is; an-¿endgelevationaleview, partly-:in
@section_.fof the` outboardnsupport ¿and »trackfcar
- >ments of¿themachineflater-'tube notedì is adapted
¿i to c_arry-tthe--brakefdru-mgD upon which it: is de
'_ iriagerassembly, fthegvíewfgbeing italgen'atathe. zonefë 1145 sired'y to - iperform a nturning;-;truingf,. grindingi or
¿indicated `by line 2-¿2 in'Figure 1;
..1s11rfacing operation.; In ‘other words, the lathe
i Figure 3 is a side. îielevational'iview, k:partly-'in
Y.operating head` isñxedfandthework or object
i' section,A y of the :outboard .support> illustrated in :i .to be-'operated upon is movedor fed into or away
:z Figure 2;
from - the lathe. Itzis‘çalso essential that» the ;ma
-f ¿Figure 4~is aniend elevationalqv-iewfof the-.out--síi `50»..chine Vbe arranged with . the Ltrack-'Way .assembly
`:_nboard- track supporticonstituting a-fportion' of :the
in level position and that .the axis of the -lathe
¿present invention;
Figures 5 and 6 are, respectivelyy va'tfragmentary
ìrtop plan» „view ¿ofi-the ~ corner. construction: utilized
~-«,-arbor. >and >itsoutb-oard îsupportxbeexactly in
l«alignment with and.` parallel to the track for -pur
:iposes of greaterlaccuracy offresults.
’i TheV operating :iheadë l 5. `is more :fullyxicldescribed
2,542,616
3
4
at 48 to receive, in sliding relation, the upper end
in United States Patent No. 2,357,803, and gen
of an adjustable element 49 carried on the base
erally comprises a housing 22 in which are op
I6, as shown. Each element 49 is threadedly re
eratively mounted power transmission gears (not
ceived in a bracket plate 50, the latter being rock
shown), an axially or longitudinally shiftable
ably mounted upon the forward face f of base I6
arbor 23, a switch panel 24 for mounting controls
by means of bolts 5|. Bracket plate 5B is angu
whereby to regulate current iiow from electrical
larly adjustable relative to the base I6 by means
supplyv line 25 tc the motor (not shown) asso
of a plurality of set screws 52 which can be
elated with the transmission gears, manually op
threaded toward or away from the base side wall
erable crank means 26 for moving the arbor 23
when desired, and a tool carrier 2l' suitably 10 to move the upper flange 53 of plate 55 into a
horizontal or level position. In the arrangement
slee'ved on the arbor adjacent the housing 22 and
disclosed, each element 49 is mounted in a later
operatively connected with the transmission gears
ally projecting boss 54 of plate 50 and is capable
therein for rotation concentrically about the
of vertical adjustment with respect thereto. A
arbor in a selected plane. rl‘he arbor 23 is adapted
locking nut 55 secures each of these elements in
to extend through the housing 22, tool carrier 21
final position, while a second nut or abutment
and the object or brake-drum D for connection
element 56 carried by each thereof is arranged
with the outboard support or base means C as
thereon to be engaged by the cross-bar 31. It
will appear presently. Therefore, and in order
can now be seen that each end of the track-way
to cause movement or feed of the brake-drum D
into the lathe, the rearward portion of the arbor 20 B is capable of vertical adjusting movement so
that an accurately leveled position can be ob
23 which passes through transmission housing 22
tained. Moreover, the track-way B can be ad
is formed with teeth 23 which are engageable
justed to be parallel with the lathe arbor, regard
with a suitable pinion gear (not shown) in such
less of the fact that it may not be truly level.
' housing for the purpose of providing mechanical
Turning now to Figures 1, 2 and 3, it can be
feed thereof longitudinally through the housing ‘
seen that the outboard carriage assembly C in
and tool carrier 21. Simultaneously with the
cludes a movable base member 58 formed with
longitudinal movement of arbor 23, the tool car
corner bosses 59 for supporting axles 60 upon
rier is rotated so that the tool post or arm 29 with
which flanged wheels El are rotatably mounted
` its cutter thereon may rotate relative to the brake
to engage the track elements 36, and a centrally
drum D. The arm 29 is detachably secured to
located, upstanding pedestal column 62 having a
the carrier 21 and,'further, can be moved relative
central bore 63 and a vertical slot 64 provided on
thereto by means of a cross-feed device indicated
opposite sides with ears 65, 56, for the purpose of
generally at 3l, but which embodies the usual
permitting the two parts of the pedestal column
type of threaded shaft (not shown) operatively
engaging the carrier 21 for effecting movement 35 to be moved or flexed in clamp-wise manner upon
proper manipulation of a lever 61 which is rotat
of the arm 29 in a direction normal to the axis of
arbor 23.
ably mounted in boss 65 and threadedly engage
able in boss 65, whereby the bifurcated pedestal
The housing 22 is preferably integrally formed
with a transversely bored depending lug 32
adapted to fit between similarly bored, upstand
column can be flexed into and out of engage
Llil
ing ears 33 on base i5, and is pivotally mounted
thereon by a removable pin p extending through
the lug 32 and the ears 33. Also integrally formed
on and depending from the housing 22 is a fore
leg'34 having spaced ears 34’ for embracingly
engaging a retention boss 35 formed on and pro
jecting upwardly from the base i6.
'
Track-way B (Figure l.) comprises a pair of
ment with a post 68 which is thus adjustably
mounted in the column 62 and at its upper end
is provided with a yoke fitting 10 fixed therein by
pins 1 I. Each arm 12 of the yoke is apertured to
receive a pin bearing 13 which projects inwardly
for engagement in recessed and laterally project
ing boss formations 14 on a bearing sleeve 15 to
allow for pivotal movement of the sleeve 15 in a
vertical plane about the axis of pin bearings 13.
In turn, the pivotal sleeve 15 carries a ñtting ele
spaced and longitudinally extending rails 36
formed of channel shaped members having the 50 ment 13 of the type having an internally threaded
collar 11, an integral bearing sleeve of reduced
ñanges directed outwardly and set in a horizontal
diameter 18, and a pair of diametrically opposed
plane so that the upper flanges constitute the
track tread. The rails 36 are secured in assem
and outwardly projecting locking pins 19 posi
tioned adjacent the outer end of the bearing
cross-rods 33 spaced along the length of the track, 55 sleeve 13. 'I'he pins 18 are urged outwardly into
bly by a cross-bar 31, a plurality of intermediate
and the end frame i1. The end frame I1, as
more particularly disclosed in Figures 4 through 6,
integrally comprises a cross-member 39 and two
vertical legs 43. At its ends, the cross-member
39 is bolted to the rails 36, as at 4l, and has a 60
sliding engagement with the endmost tie-bar 38,
locking position by means of a resilient element
or coiled spring 80 engageable with the butt ends
thereof (Figures 2 and 7) while the outer ends
of these pins are rounded oiî to act as cam sur
faces such that, upon movement of the fitting
into or out of sleeve 15, the pins will be cammed
inwardly to permit passage therethrough of the
bearing sleeve. In its operative position, the
fitting 16 is free to rotate in sleeve 15 but is nor
ing projections 43 integrally provided on the
frame for that purpose. Each of the legs 4D car 65 mally held against axial displacement due to the
pins 19 at the outer end and the shoulder formed
ries at its floor engaging end van adjustable foot
between portions 11 and 18 thereof. In addition
element 44 threaded into the leg for permitting
as by the notched formation or recess 42 formed
in each of a pair of spaced and inwardly extend
the iitting 13 is formed with a pair of cross bores
8l, in 90° relation, for the reception of a turning
the track in obtaining a level position thereof. A
lock nut ‘i5 is utilized to retain the foot element 70 tool 82 whereby the ñtting may be threaded upon
or released from engagement with the outboard
in adjusted position.
threaded end 83 of the lathe arbor 23, as will
As disclosed in Figure l and in detail in Fig
' presently appear.
ures 9 and IG, the inner end of the track-way B,
With reference to Figures 1 and '7, the outboard
and more particularly the cross-bar 31, is formed
with spaced bosses 41, each of which is recessed 75 support post 68 is vertically adjustable in pedestal
` the requisite amount of vertical adjustment of
its
’column 'i6 2vv zand. :arrangedA rior-i translatory :move
- 7V-fhavingierect:xmountingmcstsä-afll'n'npcm wvliichsan
ment on carriage or truck .Saga-andiitslfitting‘flû
¿elevator carriageiäß nisïslidably A„mcuntedifor :ver
isa'dapted: 1to1-support ïstheffoutboarduend 83 of
tical: wcrkï'îalignina adjustment ¿ofrthesassembly
M'overnentfoftthe` carriageíeß is had'zthrough
lathe v`arbor 2 3,.’ as fbyß- the. threadedconnection- «be
»tweeiifthel end'off the varbor .and-the sleeve?? 'l ‘.ï J'Butf
a ack:shaft ;9'Ly arranged-’to `turn~ inlfplaceïin
f ¿prior >to. this- connection ‘beings-made; the:y brake
framacßfl‘ gandc'threadí through.: azzzsuitable frboss
fï‘druinf D is lñrst moved:intoiapproximate; 'position
f’ f (notxifshownhfformed ati-.the =reari ofJthe': carriage
afcasting-Fé96.-tf lïìramei; 9d: :hasLíñangedvîiwheelsïi98
Whicheengagertrackïmembersîggyof :the trackeway
onto" the arbor and> isrpositioned in.abutm‘ent‘with> 103.01' frame'ïassembly IUI) forßtran‘slatorymovement
r. on î the: ’arborï î.2%. f': In raccomplishingilxthis‘:ilatter
:operation ' an innen! centering l-cone‘l 85 is‘îslipped
ai seatv formed> by. a1: flanged. shoulde'rzfßß. 'The
f. `‘brake-'druin'D is .then :passed over the íarbor until
- therealongziwhen soïdesired: “The outboardk sup
ïfftheßinnerr-endf off its .central bearingL aperture a
„ ¿comprises azbase lmeans yor carriage in the` form
:zport ¿carriage ."Cfr -of :this :present arrangement
rests on the inclined face ofîth'e-I-conef 35S-fît is
ïîof- af‘zcasting ."I ll'tirhaving;fflangedilroller 'elements
15f. :5I B2 fors engagement" with thez'tracksi 99; iandian
r ïalent means should beselectedffrom atnumber of
:aipstandingzpedestal :[03 for 'adjustable :support
:.f'graded sizesand. shapestesuitfthe dimensions r; "of :theimosteââç the ¿latter :ebeingi: fully'fidescribed
"understood, "ofcourse, thatßcen’eîââ’ror any equiv
‘ ‘l 'of ,the vsurface Vof . engagement: on -the'-v particular
czinîzcconnection withaî'liëigures‘ 2 :and 3„ " ‘ .-Postc‘ßß
ubrakeëdruni D. i A‘secondf»'conefïß‘lg/.or equivalent
.carries-cthezpitoted; ssleeyedA head î'l5ïand ntting
tovwhichfthe:workzïsupporting x:end of `arborf23
~ means', is ' next brought. into -Jposition ladj acent- rthe .1;20w .-16
' .outer surfacev of «the ibrake’~drurn.D,a‘followed> by
~ .an'»,:adapter :sleeve 88: which. abutsnagainstf rthe
i
. ~.latter.zcone,"the length‘fof adapter iëö'being selected
«-' to provide aV suiîìcient iprojection‘o'f! thai arborY end
f S83 outwardlyfthereoiï fori.threading` engagement;v25
is secured when an object, such as that shownî‘at
:D: ini-Figure 13 isîproperly :positioned: for 'a .Work
operation.
'
" "Ihre ftr'ack'lframe .assembly ¿l UQ kis constructed
:.'Within the `sleeve '11' oíi‘l‘lttingff 16.\ Afterï'this
fonstherpurpose .of "rendering itk easilyv portable
andi comprises ‘rails .esrsecured in spacedfparallel
@approximate assembly .hasfbeenfcarried out, the
,fr'elation'by a number‘of ithebarstl?ß, a rpair of
- '.toolfîßzA isV 'utilized'.-~ to‘ï'turny collar "ll Y upon the
--handle“l members ‘l 06 fsecuredîfagainst .the 'web
" ¿arborfuntilfadapter sleeve'iîBSA-has' pressed cone'ßl
- >oftthe‘track` elements;i a‘spre'aden member 4I 01 at
:into a hrm-'seat with :brake'-clrurnV Dfit being :une f 30 >>thetopposite :endsaof “the ètrackï elements from
derstood that the innerrcome?ESÈ-Will‘alsoahave a
îiflrm seat withlilangeA 861and alsofwith the .inner
:margin ofthe aperture a.
r; yhandles 1:1106 >and‘rfvei‘ticalljáz-.oiïset ‘armsifîl G Secon
.nectedto the»web:offthe?trackrelements¿adjacent
-iirtheispreaderfmember -:l 012 . v'liîa'ch1garr?'~1 08: mounts
a roller element or Wheel |09 upon whichithe
-"Figure 1i 8, «comprises/r i alf: sleeve fïf‘90,'f 'internally r35: whole machine'canspbe transported’when sol. de
threaded at its inner'enlargedfendç-:and provided ^ siríed.v` tas-indicated in=Eigure ¿2y-:each :arm "Il |38
4 :with spoke „handles“` SLi'integr'ally formed there
is vertically: Íoll‘set sucht that’fits wheel? 109 - ,nor
`"yi/ith. A brak'eedruni D’inay be thussecure'din '-»mally is'fheld-out of contactfwith “the” floor or
«centeredzz and clamped. position'vbyfandV »between 'f supporting> surface` ~whilei~the‘tracks 'are resting
theishouldered seatißßsandV sleevefëßßflupon turn-.. 140 thereon. «"I-Ioweveryewhen "fthe #track frame` VI BEI
; eingzup of;theisleevelgßgßwhich.is suitablycarried fis; bodilyfelevated »orf-lifted* by‘fthe »handles vIllli
*.1 at the upper'end of> outboard support-:pcs’t'î65;"all
; the-frame I:temporarily r‘pivots “ abouty ” the “lower
.. 'as "hereinbefore :described inrconnection 'with'Fig
`>Yedge~ll0 'of the'tracks~»9eî'until» wheelmlûß'can
¿cures 2, 3;î_and.'7.
a be brought into rolling vengagement Withfthe floor
z-Ini practice, >:.thei> above described ßllatheï Vtype 45K. to carrytheweight ofthe-machine? This feature
machine is. initially'ilset‘r up ‘andconditioned' for
is-advantageous--inf thatf~the1machine is 'rendered
. turning,"`l tru-ing: orfigrindingnworklfbyv adjusting
f îth’e track-way B so- that it isrbrought into‘paral
~ lelismzwith. the axisfîof. arborï:23,sbyI vertical-‘ad
1 »immobile :while i theftracksh »are-»s resting at -iull
e lengthfgon inthe-zfñoorfforî’supporting rsurface. At
other times the machin-excan-fbe transportedy from
justment of fpos't :Q5 of:> -assemblyfl 3 whereby `.the 50 place to~îplacewithoutt‘irnposing aload at’fthe
y-icollar` 'l‘lïof‘ñttingf '5S is, in'truef’axial alignment
l» handles# 96 4'which' = will :befbeyond fthe 'capability
with the arbor. ir‘Accompli'shing-thisgïthelbrake
ofthe avenage individual to lift.
Jdrum‘D can be moiinted~~-upon thearboi‘“ 231a`nd
VA'In rfurtherancew of:Y thea-universal# adaptability
clamped in 4position as-"pointed out; Thereafter, . c :of _myc-invention; 'fther memben'ïl 01 is formeelA with
the arbo1‘.â223` is :longitudinally shifted manually 55»tvertical clamping'jelements-Hl which arezdirected
by crank 26 until the lathe tool or ily-cutter t f1 tozoverhang-ïthe ?framefëlßlî adj acent' the- :rear track
is set for the-#proper Adepth-of cut." At this point, vzwheels: ßßfsuchzthate clampscrews“ l |'2 :threaded
.e _1 electrical-:I current. @can 1¿beifsupplied:,toritheza lathe
iithereinîmay¿zengageîìthegframefand 4prevent its
motor (not shown) and thesmachinefivillzfunc
wmovement't alongffthevztracksiï @99. „Likewise the
tion automatically to-.rotate thecutting' tool and 6u- rcarriage ` :l 0 Ivmay-¿bei :clamp'edïtolfthe tracks`A y99
. feed theV arbor axially inwardly to move the Work
.f‘rthrou'ghïappropriatetadjustment of hooked straps
toward. the cutter. It wilL-'of course, be under
'istood‘that -the-arbon 23 ìahd rbrake-drum` D do
r ynot rotate: but> simplytmove longitudinallyìi thus
“if
" causing 1 carriage C-A to v roll inwardly -> along' the ‘
‘."tracks 36 duringiithe operationof» the machine.
" ' `Thebrake-drum-lathe of -thefpresent'inve‘ntion
:>"1maylbef1readily converted into afportable’forrn; as
illustrated in Figures 1l, 12, and 13, wherein the
working head or power operated tool and arbor
assembly l5 is substantially identical with thev
form disclosed in Figure 1. The essential diner
ence of this second arrangement over the ñrst
described form resides in the utilization of a base
assembly which is in the form of a frame 94
31¿carried?.therebyïforíf'sliding _movement rela
tivef.; to'v as.. clamp'i` screwi‘l fl IE: threaded.' into the
ercarriage;l I ü l .
_
65 v-l"(Dperationfrof¿thisë.lattensassernblyî is #capable
:fofisomewhat greaterfñexibility- as either'the lathe
ahead -'| âf'orïthe:outboardïsuppcrt'carr-iagei C’. may
«rbe timniobiliz'edfa'relative-L: tol?l the@l tracks?v SSwand
operation of the lathe will effect feeding move
70 ment of Whichever of such members is free, so
that the fly-cutter t may be fed into the work
or the Work may be fed to the cutter, whichever
is most suitable.
Where it is desired to turn the brake-drums
75 on truck wheels where the tire and Wheel as
, 2,542,616
7
justable means provided in the lower ends of
said support frame.
3. A lathe comprising, in combination, a sup
porting structure providing a base, an extended
track-Way, an operating head carried on said
base and having a Work-carrying arbor movable
longitudinally through the head in the direction
sembly is relatively large and heavy, the brake
drum lathe in its portable form may be rolled
over into close proximity to the Wheel or the
wheel may be rolled over to it, whichever is most
convenient. In either case, the Wheel W with
tire attached, as shown in Figure 13, is set down
and cradled, so to speak, between the rails 99
which serve to hold it in upright position. The
arbor 23 is then brought into substantially ac
curate alignment With the center line of the
^ of, and parallel to, the extended track-Way, a
bracket plate rockably mounted on one face of
the base, adjustable elements on the inner end of
brake-drum II5 by elevating the carriage cast
ing 96 and its associated operating head i5 by
said track-Way engaging said bracket plate, and
a vertically adjustable support frame adapted to
suitable rotation of the threaded jack shaft 91.
The arbor 23 is thereupon secured concentrically
in place by suitable centering cones H6, sub
stantially similar to the previously described
centering cones 85, 81, and the clamp screws H2
released, so that the frame 94 may be free to
move toward the wheel W and the operating
head will thereby in effect “feed itself” into the
work.
Moreover, in a machine of the type herein dis
closed, it is obviously possible to substitute for
the ñy-cutter t shown a grinding wheel, hone ele
rest on a fixed surface provided at the outer end
of said track-way.
4. A lathe comprising,- in combination, a sup
porting structure providing a stationary base, an
extended track-Way, an operating head carried
on said base and having a work-carrying arbor
movable longitudinally through the head in the
direction of, and parallel to, the extended track
way, a bracket plate rockably mounted on the
face of said base adap-ted for angular adjust
ment relative to said base, the lower ends of
vertically adjustable elements threadedly re
ment, or the like, whereby the machine can be 25 ceived in the upper face of said bracket plate, the
upper ends of said vertically adjustable elements
readily made to perform a variety of duties in
engaging the inner end of said track-way, a sup
connection with wheel brake-drums and the like.
port frame adapted to rest on a fixed surface pro
While the foregoing detailed description relates
vided at the outer end of said track-way, and
to presently preferred arrangements for the sub
ject machine, it will be clear that modifications, 30 vertically adjustable means provided in the lower
ends of said support frame.
,
rearrangements, and substitutions may be made
5. In a lathe, in combination, a supporting
structure, providing a stationary base, an oper
ating head carried on said base, a Work-carrying
Having thus described my invention, what I 35 arbor provided on said operating head yand mov
able longitudinally therethrough, a track-way
claim and desire to secure by Letters Patent ist
extending laterally from said base, a bracket
1. A lathe comprising, in combination, a sup
plate rockably mounted on said base, adjustable
porting structure providing a base, an extended
elements provided on the inner end of said track
track-way, an operating head carried on said
base and having a work-carrying arbor movable 40 Way for engagement with said bracket plate for
permitting vertical adjustment of said inner end
longitudinally through the head in the direction
of the track-way, a vertically adjustable support
of, and parallel to, the extended track-way, a
frame adapted to rest on a fixed surface provided
Work-surfacing tool rotatably sleeved on said
at the other end of said track-way, an outboard
arbor, a bracket plate rockably mounted on one
carriage slidably disposed upon said track-way
face of the base, adjustable elements on the in
comprising a base, a vertically adjustable post,
ner end of said track-way engaging said bracket
and a bearing sleeve adapted for detachable
plate, and a vertically adjustable support frame
connection with said arbor whereby said out
adapted to rest on a fixed surface provided at the
board carriage may be moved along said track
cuter end of said track-way.
'
Without departing from the scope of my inven
tion as defined in and by the claims hereto an
nexed.
way to and away from the stationary base in re
2. A lathe comprising, in combination, a sup
porting structure providing a stationary base, an
extended track-Way, an operating head carried
sponse to movement of the arbor, said arbor be
ing maintained in parallelism with said track
way by means of the adjustable element and
on said base and having a Work-carrying arbor
vertically adjustable support frame.
movable longitudinally through the head inthe
direction of, and parallel to, the extended track
HARRY B. BARRETT.
way, a work-surfacing tool rotatably sleeved on
said arbor, means movable along said track-way
adapted for connection with one end of said arbor
in support thereof during a work-surfacing oper
ation, a bracket plate rockably mounted on the
face of said base adapted for angular adjustment
relative to said base, the lower ends of -vertically
adjustable elements threadably received' in the
upper face of said bracket plate, the upper ends
of said vertically adjustable elements engaging
REFERENCES CITED -
The following references are Yof record in the
ñle of this patent!
UNITED STATES PATENTS
Number
326,049
734,639
D (il
Name
Date
Mancaster ________ __ Sept. 8, 1885
Wallenstein ______ __ July 28, 19,03
926,612
Rundle _____'_ ____ __ June 29,1909
the inner end of said track-Way, a support frame
adapted to rest on a fixed surface provided at'the
1,374,320
1,925,177
Pettkoske ________ __ Apr. 12, 1921
Delf _____________ __ Sept. 5, 19313
outer end of said track-way, and vertically ad
2,357,803
Barrett __________ __ Sept. 12, 1944