US870056A - Polishing-machine. - Google Patents

Description

G. SMITH.

PATENTBD NOV-. 5, 1907.

POLISHING MAGHINE. f

APPLICATION FILED IAB. 30, 1907.

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G. SMITH.

POLISHING MACHINE.

rrmoulon FILED IAB. so, 1907.

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PoLIsHING MACHINE. APPLICATION FILED HAR. 30. 1907.

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No. 870,056'. PATENTED Nov. 5, 1907. G. SMITH. PoLIsHING MACHINE.. APPLIUATION FILED IAR130, 1907.

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UNITED STATES PATENT- OEEIOE.

-GODFREY sMrrH, or OA'NAL DOVER, OHIO.

PoLIsHING-MAGHINE.

Specication of Letters Patent.`

' Patented Nov. l5, 1907.

nppnmimsiaa umh so. 1907..v saranno. 865.577.

To all whom 'it may-concern.'

Be it known that I, .GODFREY SMIT/H, aeitizen of the UnitedStates, residing at Canal Dover, in the countyv I articles.

The principal object of the invention is to provide a machine of this charactorupon which aaplurality of irons or the like may be simultaneouslyl polished-and each one successivelypolished upon several of its. faces without removing it from its holding device in the machine. l l

Further objects and advantages of the invention, as well as the structural features by means of which these objects are attained, will be made clear by an examination of the following specification, taken in connection with the accompanying drawings, in which Figure 1 is a top.plan view of one embodiment of `my invention; Fig. 2 is a detail transverse sectional view through the same; Fig. 3 is a diagrammatic view representing the. periphery of the work carrier frame or wheel straightened outinto the same plane and showing the arrangement of the trip devices for actuating the mechanisms that operate the chucks to present different portions of .the sad irons to the-polishing 301wheels; Fig. 4 is a top plan view of `one of the work chucks, its support. and a portion of the carrier frame or wheel; Fig. 5 is a vertical section taken on the .plane indicated by the line 5-5 in Fig. 6; Figs. 6 and 7 are vertical sections taken on theplanes indicated by the lines 6-6 and 7 7 in'Fig. 5; Fig. 8 is a perspective view of the sliding jaw of one of the work chucks; Figs. 9 and 10 are respectively longitudinal` and transverse sections through one of the hchucks; Fig. 11 is a side elevation of one of the polishing wheels, its support and driving mechanism; Fig. 12 is a perspectiveiview of one of the stationary trips; Fig. 13 is a similar view of one of the stationary racks; and Figs. -14 and l5. are respectively end and side views of one of the chuck supports.

tating Work carrier 1 preferably in the form of a Wheel like frame mounted preferably upon a vertical pivot and provided around its outer edge 4or rim with: a plu- 50 rality of work yholding chucks -2 so lmounted in supports 3 that they may be moved or swung in different directions to present different faces of the sadirons or other work and different portions of said faces to a plurality The preferred embodiment of my invention illus- I `trated in the drawings, consists of a continuously ro-' vals. The carrier frame Las liere shown, comprises a hub 6 rotatable upon a suitable pivot bearing 7 secured to the iloor or any support, and connected by radial spokes 8 to a double rim consisting of inner and outer annular-members preferably in the form of I-bearns suitablyconnected and spaced apart. The work carrier l is adapted to be continuously rotated and it is preferably driven by arranging upon the bottom of the outer rim 10 an annular series of gear teeth 11 which mesh with a pinion 12 arranged. upon4 a horizontal shaft ,13 journaled in a bearing 14 secured to the floor and .provided upon its Outer end with a pulleyA 15 which may be connected by a belt or band to a suitable power shaft. In order to support the -rim or outer por# tion of the ,Work carrier, I prefer/ablysecure to the spokes 8 an annular '.Efshaped rail ;16 which is arranged concentric with the pivot 7 and is adapted to have its I l headed-depending flange engage grooved supporting Wheels 17 -journaledv in'. suitable bearings 18 upon the fioor. Any number ofthe wheels 17 may be arranged around the pivot so that the rail 16 can run upon (them to sustain the weight of the outer portion of the -Work carrier and relieve the spokes 8 from undue strain.

Each of the work chucks'.y 2 comprises a substantially rectangular body 19 having trunnions 2O at its oppo site ends and a depending semi-circular fiange 21 adjacent to one end. Upon the flat top of Athe body 19 is a stationary chuck jawv 22 and a sliding one 23.. While these jaws may, within the scopeof my invention, bei varied as desired for the reception of articles of any description thatv are to be polished by themachine, the ones here shown are especially designed for the reception of a detachable handle sad iron and their opposing inner facesV are curved to conform to the curved' sides of such an iron. The jaw 22 may be' formed integral with the chuck body 19 upon one of its sides orit may be laterally adjustable thereon by means of bolts 24 passed through slots formed in it, or` in any other suitable manner. The movable jaw 23 is provided upon its bottom with a sliding bar 25 which is beveled at its edges so that it is of dove-tail form in cross sectionand which is adapted to slide in a similar Ishaped transverse groove 26 formed in the top of the chuck body 19. The sl-ide 25 slides freely in said groove and .it is actuated in one direction by a spring 26 so that the sliding jaw 23 will beheld normally in its closed position. .The spring 26 is here shown in the form of a coil seatedin a recess in the top of the body 19 and having one of its ends bearing against a stop pin or screw27 carredby the slide 25,A as wllbe ..readily seen upon reference to Figs. 4, 9 and 10. The slide 25 is of such length that its free or outer end projects beyond the -outer side face of the chuck body 19 in order that it may be actuated by a cam lever 28 snit- 9, 10 ofthe carrier framei ably pivoted at 29 upon saidside of the chuck. The

cam 2,8 is'so constructed that when it is actuated, as vhereinafter described, it Will'move the slide 25 inl' pins 30, 31 which are adapted t0 enter recesses or seats formed in the iron. ,As seen ,in Fig. 10, the pin 3l in the jaw 23 is slidably mounted and is pressed inwardly by a leaf spring 32. But, as above noted, the chuck jaws may be of any other form and construction lthan here shown and described so as to .adapt the f chuck for holding an article of any size and shape.

The trunnions of the chuck are jurnaled in bearings 33 upon the ceuter'of -the sides of oneot` the sup-- ports 3. i Each of the latter is' in the form of an open frame consistingof end plates 34, 35 connected by lower side bars 36 and upper side bars 37, 38 upon which latter are arranged the bearings 33. Upon the end plates 34, 35 are provided trunnions 39 which are journaled inbearings 40 arranged upon the tops of the two rims It will be noted upon reference to Fig. 4 that the chuck support 3 is arranged between the two rims with its trunnions39 extending radially with.` respect t'o\ the carrier frame or wheel,

andv that the chuck 2 .is arranged within the -support 3 with its trunnions disposed-in ag planelat right angles to that of the trunnions 39: vThis mountiiig'ofthe chuck upon the carrier frame enables the work wlitlifiii it to be swung or tilted inv any direction, the pivotal or ,swinging movement of the chuck permitting it to swing inwardly/,and'outwardly s othat it may be turned over upon either side to cause eitheriside .face of the iron o r work to be uppermost, Aand the-pivotal or swinging movement of the chuck support permitting it and also the chuck and the work'therein to 4be swung or tilted so. that different portiehsof said side faces of the iron or work or of the bottom or .topiaeeioi the latter to be presented to a polishing wheel." wv .1

In order to lock the chuck in either its normal upright position or when swung down upon either of its sides, I provide at suitable points in the depending :Harige 21 of the body 19, one or more recesses or seats 41 which are adapted to receive the upwardly bent end of a locking lever 42 which is pivoted intermedi'- ate its ends at'43 upon a depending portion of the cross bar 37. The oppositeor free end of the lever 42 extends inwardly and is arranged in the path of an arm 44 on the upper end of a slide 45 mounted in a suitable guide 46 upon the inner end platex`34. The slide bar A `45 carries `at its lower end an inwardly extending pin 47 which projects through and slides in a vertical slot 48 formed in said plate 34. The pili47, when the support 3 is in its normal uprightposition, is disposed directly above a vertically sliding bar 49 arranged in guides 50 uponthe inner rim 9, asclearlyshown in Figs. -5 and 7. The lower end of the slide 49 has a slot and pin connection with a bell crank or lever 51 which is pivoted upon the rim19 in a recess cut inv its bottom ange. One'armof the lever 51 dependsbeneath the bottom plane oi the rims 9, 10 and is adapted to be I actuated by ysuitable trips arranged in its path upon the floor and at proper` intervals, the preferred form of these trips being illustrated at 52 in Figfl. It will b'e observed that when the lever 5l is actuated by passing over one of the trips 52,- the slide 49 will be. elevated and` -the latter will,` through its engagement lwith the pin 47, elevate the slide 45 and the latter in turn, through its arm 44, will swing the locking lever 42`to release it upon one 0i the seats-41 in the chuck body.

In order to swing the chuck over upon either oi its sides and to return it to its upright position', alter it has been, unlocked by the mechanism just described, I provide upon one ofy the trunnions 20 a ratchet wheel '53 having lou-r teeth which projectdownwardly, two

-38. The lwer ends of the rods 5S are adaptf-/l 'to'lie' above thefree ends of cain shaped levers 59 which have their other ends pivoted in a cross` bar G() conoccting y, the rims 9, 10. The cam lever 59 lor the pawl 55 is con`` f nected by a link to a bell crank or lever lil and the cani y lever 59 for the other pawl 57 is similarly connected by alink to a bell crank or lever (52. These levers are suitably pivoted in a cross bar (S3 connecting the rims 9, l0 and have their free arms or ends depending beneath 'the plane of the bottom of therinis 9, l0 so as to be actuated by trips similar to the ones shown in Fig. l2. These trips are so arranged upon the floor beneath the machine that the` levers 6]., G2 will be actuated to swing the chuck in the desired direction. When the lever 6l actuated it will cause the pawl 55 toengage one of the teeth 54 and swing the chuck inwardly and over upon its inner side so as to turn the outer edge of the iron between its jaws uppermost, and that when the other lever 62 is actuated` its pawl 57 will engage one of the teeth 56 to swing the chuck in the opposite direction, that is, outwardly. The pawls 55, 57 are resilient so that in returning' to their normal positions, they slip over'the beveled upper edges ol' the ratchet teeth. Two teeth are provided upon each side of the wheel to enablctho chuck to be turned from one of its sides over upon its opposite side, as will be readily understood uponrei'ercnce toFig. 5.' v

-In order to swing the chuck support 3 forthe purpose ofpresenting a curved surface of an iron or other work to one of the polishing wheels 4, as the chuck passes such wheel, l form upon the bottom edge of the outer end plate 35 a segmental-worm gear 63 which meshes with a Worm (54 rotatably mounted in bearings 65 upon the outer rim l0 and provided upon oneoi its ends with a bevel gear that meshes with a similargear fixed upon a vertical shaft 65 also journaled in bearings upon the rim l0, as clearly show-n in Fig. 6. Upon the depending lower end of the shalt G5 is a toothed wheel or gear 66 which, as the work carrier frame is rotated, is adapted to mesh with stationary racks G7 arrangld at suitable intervals upbn the floor beneath the machine. The preferred construction of the racks 67 is shown in Fig.

13 but they may be of any other suitable form. Each one is of such length that the worm will be turned to the desired extent and certainof thorn are arranged to engage one side of the toothed wheel 66, lWhile others are arranged to engage opposite side of the same in order that the shaft 56 will be turned in opposite direc-- tions for the purpose,of swinging the support 3 first in one direction and then in the opposite direction, as presently explained. l'i0 In order to automatically release the polsl'ied iron upon the'chuck, I provide upon the end plate.35 of the support 3 a guide 80 in whichis slidably mounted a I slide bar 8l, the upper end of which is so disposed that wheriielevated it will strike the outer end of .the cam lever 28 to actuate the same andwmove the sliding chuck jaw to its open position. vThe lower end of the bar 8l y has an outwardly extending pin 82 which projects through and slides in a vertical slot 83 in the plate 35 andhas its outer end arranged above a sliding bar l84 mounted in a guide upon the rim 10 and having its lower end connected by a slot and pin connection to a /bell crank or lever 85 similar to the lever 5l. When the lever 85 is actuated by a trip, such asthe one shown the cam lever 28.

Any'number of the -work chucks may be arranged around the carrier frame 1 and any number of the polishing wheels or equivalent devices may be employed so that one or more faces or surfaces of the work Will be properly ground or.polisl1ed. As shown in Fig. l, eight of the polishing wheels 4 are provided, the first four numbered 68 areconiparativcly broad and adapted to polish the fiat bottom surfaces of the irons; the n'ext two 69 are narrw and adapted to polishone of the side edges of the iron and the last two 70 are similar and are adapted to polish the opposite side edges of the irons. As

in Fig. 12, the bar or slide 8l will be elevated to actuate shown in Fig. ll, each of the polishing wheels (which.

may be of any form and construction) is fixed upon a shaft 71 journaled in suitable 'bearings upon the'outer 40 end of a swinging arm 72 which has its bifurcated inner end pivoted upon a standard 5 rising from the floor.

The arm 72 is held in an adjusted position so as to cause its polishing wheel to properly contact the irons, by a lever 74 pivoted upon the standard 5 and havingpne of its ends connected by a link to said arm and its other end suitably locked 'by a well known form of pawl and rack locking mechanism 75. On the shaft 71 is a pulley 7 Gand upon the standard 5 are two pulleys 77, 78.` drive belt or band 79 froma suitable power shaft passes `the purpose of rotating the polishing wheel.

The operation of the machine will be readily understood from the foregoing description taken in connection with Figs. l and 3 and the following brief statement; The operator stands at the point a and, as the work chucks and removes the polished ones as they approach him. When he places an unpoiished iron between the open jaws of one of the chucks, he swings the outer end of the cam lever 28 downwardly so that the spring 26`moves the sliding chuck jaw to its closed position to 4 l clamp the iron in the chuck. As the carrier frame continues to rotate, the irons have theirl flat bottom surfaces polished by the four Wheels 68 as they pass under 6 5 thesame and as they leave the last wheel 68, one of the around the pulleys 77, 76, 78, as shown in Fig. l1 for .f carrier frame rotates, .places unpohshed irons 1n the 'inwardly-upon its inner side so that thel outer side edge of the iron will be uppermost. When the chuck is in this position, shown at b in Fig. 1, the toothed wheel 66 meshes with one of the racks 67.so that the chuck and its iron will be swung forwardly or to the right to an anglev of about 60. When in this position, the iron contacts the first of the polishing Wheels 69 and, as it passes under the same, said vtoothed wheel 66 engages another and a longer onev of the racks 67 which causes the iron to be swung to the left to an angle of about 60, as indicated in Fig. 3. As the iron passes under the second wheel 69, the ftoothed wheel 66 engages another of the racks 67 which restores the support 3 to its normal horizontal position. The lever 51 is then actucessively actuate the levers 51, 62 a second time toiirst unlock the chuck and then swing it outwardly and over upon its outer side/so that the inner side edge of the iron will be uppermost. When the iron is thus held upon its side, as at d in Fig. 1, the toothed wheel 66 passes between and engages a series ofthe racks 67 which causes the support .3 to be rocked first tothe right, then to the left and then return to its normal position, as will be understood upon reference to Fig. 3. After the second side edge of the iron has been polished by passing under the Wheels70, in a manner similar to that in which its first mentioned side edge was polished in passing un'der the wheels 69, two of the trips 52 successively actuate the lever 5l and the lever 62 to unlock the lchuck and then return it to its upright position, as shown at e in Fig. l. When in the latter position, the iron is ready to be removed from the chuck and as it approaches the point a, one of the trips 52 actuates the lever `which causes the cam lever 28 on the chuck to be elevated and to force the jaw to its open position.

Having 'thus described my invention what l claim and desire to secure by Letters Patent is:--

' 1. The combination of a continuouslyrotating work carrier, work chucks thereon for holding sad irons' or 'other articles to`be polished, u plurality of polishing wheels arranged around the carrier, and means for swinging' said chucks to present different side faces of the irons or other work in lthem to said polishing wheels.

2. The combination of a continuously rotating work carrier, work chucks'thereon forholdingr sud irons or other articles to.4 he polished, a plurality of polishing wheels arranged around the carrier, means for swinging vsaid cl s to either-'side to present different faces of the irons or other work to certain of said polishingwheels, and means for swinging said chucks .endwise to present differentv portions of said faces of the irons to said wheels. Y 3. Thecombination with a polishing wheel, of a rotary carrier frame, and a work chuck mounted upon said carrier frame for swinging movement in planes at angles to each other. y

4. The combination with a polishing wheel, of a rotary carrier frame, -a pivoted support upon said carrier` ,frame and s work chuck pivotally mounted upon said support for movement in a plane at right angles to the movement ofsald support.

sliding chuck lli) vshaft geared to said worm, a toothed wheel upon said cam lever and a trip device for actuating said sliding bar.

5. The combination with a polishing wheel, of a rotary carrier frame, a work chu-ck mounted for swinging movement upon said carrier frame means for locking the chuck against movement and means for unlocking the same.

6. The combination with a polishinggwheel, of a rotary carrier frame, a swinging 4vwork chuck upon said carrier frame and means for locking the chuckagainst movement.

7. The combination wi'thl a polishing wheel, of a rotary carrier `frame, a' pivotedsupport upon ysaid carrier. frame, means for tilting said support, a swinging work chuck upon said support, and means for actuating said chuck.

8. The combination with a polishingwhe'el, of a rotary carrier frame, a movable support upon said carrier frame, means for actuating said support, a swinging work chuck upon said support, means for actuating said chuclg and means for locking said chuck against movement.

9. The combination with a polishing wheel, of a rotary carrier frame, a pivotally mountedgsuppor't upon said carrier frame, means "for swinging said support upon its pivot, a pivotally'mounted Work chuck upon said support and means for swinging said chuck upon its pivot.

10. The combination with a polishing wheel, of a rotary I carrier frame, a pivotally mounted support upon said carrier frame, means for swinging said supportV upon its pivot, a pivotally mounted work chuck upon said support, means for swinging said chuck upon its pivot and means for locking said chuck against movement.

11. `The combination Withpa polishing wheel, of a rotary carrier frame, a swinging support upon said carrier frame, worm gearing for actuating said support, a swinging work chuck upon saidlsupport, means for locking said chuck against movement, and a paw! and ratchet device for swinging said chnckupon its pivot.

12. The combination of a carrier frame. a support thereon, a work chuck pivotally 'mounted `on said support, a ratchet wheel carried by said chuck, a sliding pawl for actuating said ratchet wheel and a trip device for actuating said pawl.

13. The combination of a carrier frame, a support pivotally inountedl thereon and carrying a worm gear, a worm upon said' carrier frame to mesh with said gear, a

shaft, a stationary rack for engagement with'said toothed wheel and a work chuck upon said support.

14. The combination of a carrier frame, a support thereon, a chuck'pivotally mounted upon said support and provided with seats, a locking lever to engage said seats, a slide bar for actuating said lever, atrip device for actuating said slide bar and means for swinging said chuck upon its pivot.

15. The combination of a carrier frame, a work chuck mounted thereonvand having a movable jaw, a cam lever for actuating said jaw, a sliding bar for actuating said 16. The combination of a carrier frame, a supportl thereon, a work chuck upon said support and provided with a stationary jaw andaanovable jaw, a. slide carriedY by sa-id movable jaw, a spring for actuating said slide in one direction, a cam lever for actuating said slide in the opposite direction and means for actuating said cani lever.

17. The combination of a pivot bearing, a wheel likc carrier frame having a hub to,engage said bearing, a rim and radial spokes connecting said hub and rim, work chucks carried by said rim, rollers arranged around said 6,5 pivot bearingr and an annular rail secured to said spokes and engaged with said rollers.

18. 'lhe combination of a vertical pivot, a wheel like carrie; frame disposed horizontally and rotatably mounted upon said pivot, means for rotating said carrier frame, v7() work chucks upon said carrier frame and a relatively stationary polishing-wheel to engage the work in said'.

chucks.

19. The combinationof a vertical pivot, a whceldike.

carrier frame disposed horizontally and rotatably mounted upon said pivot, said carrier fame having spaced rim members, swinging supports arranged between said rilu members, swinging work chucks upon said supports, means t'or operating lsaid supports and means for operating,r Said work chucks.

20. 'lhe combinationof a rotatable swinging supports thereon, s\vin,'.;in Y chucks upon said supports, means for locking said chucks, means t'or actuating said chucks, means for actunlingy said supports and stationary devices for operating the chuck locking means thc chuck actuating means and the support actuating' means.

:21. In a machine for polishing sad irons or other articles, the combination with polishingl means, of a carrier work holders upon said carriers, means for swinging said work holders to either side to tpresent different faces carricr frame,

ot' the irons or other work to said polishing means and moans for swinging said work holders endwise to present. different portions of the faces of the'irons to said polishing means, substantially as described.

22. The combinalion with a polishing means ot' .a carrier, a work chuck or holder pivoted on the carrier, a

' ratchet upon the chuck, a paw] for actuating the' ratchet ahd means for actuating said pawl, substantially as described,

21. lbc combination wilh a, polis-bins' means, of a carrier, a work holding support proted upon thcv carrier, a worm gear upon said support, a worm upon be carrier to mesh with said gear, a shaft operatively cuunccnal to said worm, a toothed wheel upon said shaft and a .s-lalion-v ary rack to actuate said toothed wheel, substantially as described.

24. The combination Withva -polishing means. of a carrier a pivoted Work holder of the chuck upon the carrier,

means for swinging said chuck, a locking member adapted to engage the chuck and hold it against movement in its different positions and means for actuating said locking member. substantially as described.

25. ',lhe combination with a polishing' means, ot' a carvrier, a Work chuck thereon and having a-stalionary jaw 115

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