US1670540A - Tool rest - Google Patents

Description

May 22, 192s.

TOOL REST 2 seetssheet 1 Filed Aug. 1l, 1924 UNITED f STATES PATENTo1=,1=icr.lg. ry A HUGH HUMPIIREYS, oF GRAND` RAPIDS, MICHIGAN, Ass-IGNOR To OLIVER MAOHIN- p ERY COMPANY, or AGRAND RAPIDS, MICHIGAN, .A 'CORPORATION vOis MICHIGAN;

TOOL REST.

Application filed August 11, 1924.' Serial No. 731,332.'

y This invention relates to a novel construction of tool rest such as is usedwith wood turning lathes. The worliturned, in wood turning lathes, may be of diiferent sizes and diameters requiring that `the tool rest on which the'va'rious turning tools such as'chisyels and the'like bear be changed and adjusted for the sizes of the work; Also the work in its later stages is of smaller diameter than the stock from which the iini-shed larticle is f made, this at times requiring frequent ad 'justment of thetool rest; while different positions of the rest relative to the lengthl of. the lvwork are often requiredparticularly' where the work is of greater length than the lengthof the tool rest. It is a 'primary ob# ject and purpose of the presentinvention to construct a very simple, practical'and vnovel f y `parts in the' diferent tool rest which may be adjusted either lengthwise of the lathe bedj or transversely thereof tomany dierent positions. It is a further object and purpose of the invention to'provide a novel construction of tool 'rest wherein the lcontrol for releasing the-rest for movement and for tightening it against movement when it has been placed at a desired position, is located in front of the lathe and at apoint most directly accessible to the operatorof said lathe, this aiding in accomplishing Ispeed to various positions. of the invention is to construct the tool rest in such manner that a blueprint holder may be adjustably applied thereto in position such that .a blue print held by said holder'is also 'located' direct-ly in front of the lathe operalftor, moves with the tool rest and is capable Iof adjustment with respect tothe vtool rest lin a direction transverse to the length of the llathe whereby the blue print may bekept out of the way ofthe rapidly rotating work. held between the'head and tail stock spindles of the lathe. Various other objects and puri poses than those specifically stated, all tend- "iiig to a particularly"practical vand eilicient yconstruction'of the character stated willapy which,

Fig.v l isafragmentary enlarged vertical pear as understanding of the invention is had f from'the following description taken in connection with the accompanying drawings iny tool .rest which iSr Y f f c wail-heee 12a en laneros@ @diem-usb,

Fi g. 2 is a vertical Section substantially on the plane of line 2-'-2 of Fig.` l.

Fig. 3 is a fragmentary perspective View villustrating the tool l rest with the print holder thereon attached to the Vlathe bed .and showing the relation of the tool'restiand blue print holder to the work.' 1

g Fig. 4 isa horizontal section taken 'on'the line 4 4 of 'Fig'. l. u

Fig; 5 is an end elevati cally mounted shaft forming one element of the tool rest construction and Fig. 6 is a fragmentary verticalsectionon `of the ecc'entri-V taken'in one side and at the rear end of the tool rest supportshowing thefattaclnnent of the blue print holderV which is shown in elevation. f

`Like reference characters refer to like ings.

figures of the drawstruction including va bedl in the upper side and lengthwise of which is a cont-inuous slot 9 The tail v'stock 3 and thehead stock 4:' are mo'unted on the bed in the usualmanner, thevr -tail Vstock being capable' of adj ustment` lengthwise'of the bed so as tov receive'the worlr between its spindle and fthe usual 'face plate carried on the head'stocl(` spindle. of adjustment of the tool rest v`A still further Object on `itsl under side so as to Abear against the upperplane surfaces ofthe front and 'rea-r members ofthe bed 1,'as shown', and the 'same is adapted v'to vbe moved lengthwise of or transversely across the bed. The post 6 'is bored downwardly from its lupperendso Vthat the tool rest' proper may vbeinounted therein, said'rest consisting ofan upper head1() from which a depending rod l1 eX- tends passing intjo the openiigborediiit'he position toy which 'itmay be vertically "ad justed maybe used and Ithave showna rod post'f asbest shown in Fig. 1j( yAnypra'ctii 'calineans' for securingl thev rod 11 in anyl l2 screw threadedv at one end and equipped l through, and fromsaid head 20 a rod 21 exwhich a rod 13 may vpass to serve as a handle to operate the' screw, the post 6 at one side being recessed for the reception of arsleeve 1.4 which is located aroundthe rod 12 and disposed between thejhead '12 and the vertil` cal rod 11 asshown in lFig. 4, whereby on operating the screw threaded rod 12 in one direction sleeve 14 binds against the rod 11 and secures it in position. AIt is obvlous that the tool rest proper may be readily released and raised or lowered toa desired position and then secured in=such position almost instantly.

\ 'A rod or shaft 15 is located between and parallel `to theside bar 7` of the tool rest construction. with a pintlelG of reduced diameter, the axis of which is eccentrically located -with respect to the axis of the shaft 15. This pintle 16 is rotatably mounted in a suitable bearing in the cross lmember 8. At its front end shaft 15 is also equipped with an eccen trically positioned -pintle 17 of smaller d1- ameter thel axis of which coincident with the` Yaxis of thepintle 16; and this front Vpintl'e17 kpasses through and is rotatably mounted in' a bearing sleeve 18 carried by lthe tool rest at Lits front end and at the lower end of thepost 6. Handle 19 is pinned or lotherwise suitably secured to the front endof the `pintle 17 whereby the shaft may be rotated by manually operating the handle 19. A y j I A @n the shaft 15 betweenvits ends ahead 20 is located, the shaft passing freely theretends Adownwardly through the slot 42 and through a clamping block 22 located under the upper side of the lathe bed and formed so asto clamp against the upper side of the llathe bed at each side of the slot 2 as best shown in Fig. 1. The lower end of the rod 21 is threaded for the recept-ion `of nuts 23. It is vevident that when shaft 15 is rotated so as to bring the sameA to its highest position, or nearly to its highest position, then if the nuts 23are tightened so as to clamp the clamping block 22 securely against the upper side of the lathe bed the tool rest will be held securely in Aposition against movement.' rllhev handle 19 is pref- ,erably secured to the part 17 so Athatwhen thus clamped said handle will extend downwardly at an angle tov both the horizontal and vertical or it may approach a substan- .tially vertical position. Then, whenever it is desired to' release the tool rest all that is necessary 1s to grasp the handle 19 and turn it towardahorizontal position or evento andpast horizontal position whereupon the vshaft 15 is bod-ily lowered on account of its eccentric moulitiiig,thus lowering the Ahead 2O and rod 21and .the clamp 22 associated soas toY release the tool rest for movement either. lengthwise of the lathe bed At its rear end it is provided depending froml the or transversely thereof, the transverse movement being permitted by reason of the free sliding movement of the shaft 15 through the head 20.r And after thextool rest has beenanoved to a desired position it can be vinstantly clamped lin 'place by `moving the handle 19 downwardly as far as it will go vor until the clamping block 22 again binds securely against the under side of the upper part of the lathebed due to the elevation of 4'consisting of avertical rod 24 whichat its lower end is turned `at right angles, making an arm 254 which passes .into an opening made in the rear end of one of the barsv7 of the ,tool'res'twsuppora which bar is vcored out, as, indicated lat 7, for a .distance tofpermit adjustment ofthe part 25 in or out varying distances. lhen in `a desired position the blue printholder is secured by` assetgscrew 26as shown in Fig. 6. The rod 24;extends upwardly and atits upper end isequipped with. any preferred type of spring'clip 27 -for the holding of a blue print, as indicated at 28. 1f the work is of largefsizathe blue print holder `may be moved farther back and for a smaller size'it may be moved forn ward as is evident.v The blue print holder moves with lthe tool` rest andy accordingly is always directly in front of the lathe operator making itparticularly practical and eflicientv in this respect.

The invention is defined in the'claims appended hereto and 1s to, be considered ascomprehensive of all forms of structure coming within their scope.V

I claim:

1.111 combination, a-lathe including a lathe bed yhaving a longitudinal slot iny its upper side, a tool` rest support located above and bearing against the upper side of the lathe bed, said support including spaced apart parallel bars connectedjat their ends,

la shaft rotatably mounted on eccentrically located pintles at its ends and located. be-

tween the said llp'arallelvbars, a handle atfthe front end of the shaft for turningthe same, a `head having an opening through which the shaft pa'sses whereby the tool rest support `and shaft may slidelongitudinally of the shaft with reference to the head, a rod head and extending through the slot in the lathe beda clampin block located against the under side ofthe upper side o'l the lathe bed, nuts threaded onto the depending rod below said clamp and a tool rest member carried by the tool rest support adjacent the front end thereof, substantially as and for the ypurposes described.l i

2. A tool rest support comprising a single casting having parallel spaced apart side bars, a cross member connecting the rear ends oi the cross bars and a tool rest post at vthe liront end of and integrally 4connected to and connecting said side bars at their front ends, a shaft located between and paralleling the side bars o'l' the tool rest support, said shaft having alined eecentrically positioned pintles at its ends rotatably mounted in said cross member' and the lower end of said post, a handle attached to one of said pintles for manual operation, a member having an opening through which the shat't passes whereby the tool rest support and shaft may slide longitudinally of the shaft with reference to the member, a rod depen-ding from said mem ber, Clamping bleek through which the rod passes and means for adjusting the clamping block on the rod, substantially as described.

3. In a device of the class described, an

elongated tool rest support having a longiwhereby the support vand shaft may slide longitudinal-ly of the shaft with reference to vthe head, a rod depending .from the head, a

clamping block through which the rod passes and means adjustably mounted on the end' of the rod for adjusting the position of ythe clampingbloclt, substantially as and forr the i.

, i i v 1.0v the class described a tool purposes described. 4l;- In a device of rest support having an elongated body, af

shaft extending longitudinally'of said body adjacent thereto and .eceentrically mounted on said body, means for manually turning the shaft, a head having an opening through Which the shaft passes whereby the bodyv and shaft anay slide longitudinally of the/shaftA IWith reference to the head, a. rody depending from the head, a clamping block'through which the rod passes and means adjustably mounted on the end of t-he rod for adjustingv the position of the clamping block.

In testimony whereof I aiiiX my signature.

HUGH `HUMPinneYs.4

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