US1042509A - Stove-rim-polishing machine. - Google Patents

Description

G. L. WALLACE & W. VAN P. STBIGER.- .STQVB RIM POLISHING MACHINE.

APPLICATION FILED MAR. 12, 1910. 1 042 569, Patented Oct. 29, 1912.

3 SHEETS'SHEET 1.

iA/M/vro/zs 6W1; George L. Walace 1/ MQOOQIO G. L. WALLACE & W. VAN P. STEIGER.

STOVE RIM POLISHING MACHINE.

APPLIOATION FILED MAR.12, 1910.

3 SHEETS SHBET 2.

hiented Oct. 29', 1912.

G L. WALLACE 85 W. VAN P. STBIGBR.

STOVE RIM POLISHING MACHINE. APPLICATION FILED MAR. 12. 1910.

Lw fizfifigo Patented 001;. 29, 1912.

3 SHEETS-SHEET 3.

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Application filed mil-ends, 1910. Serial no. 548,825.

To all whom it mag I concern Be itknown that we, GEORGE L. WALLACE and W'AL'rnr VAN PA'I'I'E-N STEIGER, citizens of the United States, and residents of 5 Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Im rovements in Stove Rim-Polishing Mach nes, of which the following is a specification.

This invention relates to polishing machines and particularly-tea machine for buflingand polishing stove,

so called or similar work having annular curved surfaces such as circular PIECE, or

1 pieces usually attached to cylinder types of coal oil stoves and used is a guard' or foot rest. 7 Inpractice these stove rims are formed of sheet or cast metal and their faces polished both preparatory" to and after plating; someof them are made in the form of complete rings while others represent but a portion of the ring. The peripheral surfaces of said rings are usually oval so I [ad ustment comprises a rack '17 formed that in cross section they represent subclass in a quick, efficientand inexpensive way, thereby accomplishing a piece of work Rapp'hed to the squared end of the said shaft 18. is secured to the forward end of this spindle which has heretofore been done largely by handat a much greater cost than can be done by our machine.

Upon the accompanying three sheets .of

drawings forming a part ofthis specification similar characters of reference will be throughout the several figures and of which, Figure'l, shows a front view of our .im-

4 proved rim polishing machine in operative represents a horizontal base that is sup-* ported by legs 11+ 11 =secure'dto its oppe-- site ends. This base" is ofa special conistruction and serves to 'support the. several parts of the machihdexefitth counter shafts for operating the same. Toth'e rear 5 of this base is secured an upwardlydisposed bufiing and stantially a quarter circle.v We have therej fore produced the following described machine for-polishing metal pieces of the above justing shaft 18' bracket 12 and adapted to be operated by t bracket-will be seen at the right of the bed i and 1s adjusted to the right or left by reason of a rack 12' mounted in the rear portion of the base and engaged by an adjustmg inion 13 secured upon a short shaft journ ed in the said bracket 12 and designed to adapt the machine to accommodate various sized rims. Referring to this mechanism (see Figs. 1 and 2) 13 represents a driven pulley thatis mounted upon a short shaft 14 ournaled 1n bearings 14 secured to the bracket 12 and upon which shaft is mounted a worm 15'that mesheswith and drives a gear 15' secured to the rear end of the chuck sp ndle 16 mounted in a sleeve bearing 16' that is made adjustable longitudinally'within the bearings 17 of the bracket 12 to bring the chuck into properoperati-ve relation to the pivotal point 54 of polishing Wheel Patented 0ctQ29d9123 bracket. The means for accomplishing this A upontheunderside of the sleeve and en gaged by a'pimon 18 mounted [upon an adjournaled within the means of a wrench or other suitable tool A chuck 19 of any suitable character for the attachment of the stove rim 20.

Upon the rear end portion of the spindle 16 is secured a worm'21 that meshes with and drives a worm gear22 upon a vertical shaft '23 -journaled in suitable. bearings secured to the bracket 12, and has secured to its lower end a bevel, gear 24 that meshes with a similar bevel gear attached to a cross shaft 25 also journaled in the bracket '12. This cross shaft is further provided with a bevel gear 26 which meshes with gear 26 slidably keyed to shaft 27 and' housed in bracket 12 to move therewith/ This shaft 27 is mounted in the base 10' before referred to and operated-by reason of power transmitted from the driving pulley 13 through the worm, gear and shaft connections before referred to.

A saddle 28 is adjustably mounted upon :ways' 2? of the base and arranged across the front side thereof. This saddle through additional connections serves to carry the'buifing-onpolishing wheel which as designed tie may be'moved to and from the stove rim on the chuck, and likewise be swung around so as to operate upon both the periphery and side portion thereof. The said adjusting mechanism is designed to be operated by 'foot power and consists of a rocker shaft 30 lever 34 hungfree upon the rocker shaft,

will through the segments and idler gear impart an upward movement of the other lever 33 and thus turn the rocker shaft in one direction while a similar downward movement of the. other lever 33 will turn the shaft in the opposite direction and againraise the first named lever 34. Upon the other end on this rocker shaft is secured an arm 38 having a cam groove 39 in its outer face that engages a pin 40 secured on the underside of the before mentioned saddle 28 and whereby the said saddle is moved longitudinally upon the ways of the base so as to shift the bufling wheel to and. from the work to be operated upon. A swinging bracket 41 is hinged to the said saddle and is provided with mechanism for swinging the same which is o erated from the before mentioned longitu inal shaft 27.. This bracket carries a polishing wheel spindle 42 that is driven through a separate belt connection from an overhead counter shaft which we will later describe. Bearings 43 and 44 are formed upon the rear side of the saddle 28 and disposed intermediate the top and bottom portion of the bed to carry a shcrtshaft 45 and engage a ear 46 slidably mounted upon the longitug Upon the short shaft is mounted a grooved cylinder cam 47 and gear 48 which latter meshes with the before mentioned gear 46 upon the driven shaft 27. Upon the inner side of the gear 46 is formed one member49 of a clutch thatis designed to be engaged with or disengaged from the adj oiningclutch member 50 secured to the drlven shaft 27 and whereby the gears, cam and connecting parts may be connected and driven by the said shaft. A slide rack 51 fitted in ways on the saddle bears a pin 52 that engages the before mentioned groove of the cam so that the rack is slid backward and forward with the rotation of the cam. The toothed edge of the rack meshes with a segment 53 having an extended arm to which the swinging bracket 41 is secured. The said segment is secured to inal shaft 27 secured to a vertically disposed pivot 54 that passes freely through bearings 55 of the saddle, and is engagev lower ends by the said swinging. rackets and formsa pivot from which the bracket not only 'swin'gs but toward and from which both the bufiing wheel and chuck areadjusted. The top of the swinging bracket 41 is provided with a dovetailed way 56 to receive a'correspondin ly dovetailed base portion of a standard 5 In the upper end of this standard is journaled the spindle 42 that carries the polishing or bufling wheel 58 upon" one end and a belt pulley 59 upon the other end. An arm 60 is secured to the saddle and carries an adjusting nut 61 that engages a screw carried by the standard 57 and whereby the standard and its operative at its up er and parts may be adjusted upon its bracket. A

spring 61 is mounted upon this nut in a way to form a cushion, so to speak, for the bufing. wheel and better to overcome any uneven surface ofthe stove rims when being polished.

From the foregoing it will be seen that the swinging bracket and parts carried thereon are swun in and out with each complete turn of t e cam so as to move the bufling or polishing wheel back and forth across the face and side of rotating stove rim mounted upon the chuck.

The buflin or poli hing wheel 58 is driven throng its spindle and pulley from an overhead counter shaft that is made to move to accommodate the radial swinging movement of the said bufling wheel. This movable device comprises a vertically disposed shaft 62that is hung from the ceiling directly above the pivot 54 for the swinging arm and upon' this shaft is mounted a driven and driving pulley 63 and 64 respectively. Upon this shaft is also hung a bracket 65 to the lower portion of which is-secured a pul-- ley 66 that is connected by a oable 67 over suitable guide pulley 68 with a similar grooved pulley 69 secured to the lower end of the pivot 54 and whereby the cable runs back and forth with-the movement of the .pivot and its swinging bracket in a wayto operate the-upper grooved-pulley 66 and. its

bracket lIi" l1I11S( )n with the movement of the said swinging bracket whereby maintaining the driving mechanism of the counter-shaft in juxtaposition to the pulley and polishing spindle. The belt 70 for forming this driving connection is carried around the driving pulley 64 then over idlers 71-71 secured to the sldes of the bracket 65 and then around the spindle pulley 59.

In the operation of our machine the rims 20 are secured to the chuck 19, whereby the are rotated duringthe operation of the butt ing wheel Which is driven at a high rate of speed and moved back and forth across the mm and engaged therewith byan operation down of the foot lever '33. This movement ofthe j saddleand its parts'likewise, connects the clutch members 49 and 50 is a way to oper- I rack .51 and swinging arm in a way to gui e the polishing wheel backv and forth across the face of the rim. When v ate the cam 47, i

this operation is completed the other foot lever '34 would be operated in a way to shift the slide 28 a swinging gate thereon and its bufiingwheel away from the rim. All ad-' justments of both the chuck and bufling wheel are made toward and from the pivotal pin 54. i

Having thus described our invention what we claim and desire to secure by Letters Patent is: v

1. In a polishing machine for annular work, the combination of a driven rotatable work holding chuck adjustable axially of and transverselytoits axis of rotation, a power driven resiliently mounted polishing .wheel adjustable to and from the work holding. chuck and having a swinging 'motion around the face of the work, said swinging motion being derived directly and positivel from the rotation of the work hold and arranged to swing around an axis coincident with the center of the generating,

curve of the polished surface, and driving pulleys mounted in a frame swinging on a center coincident with the axis of the .pol-' ishing wheel substantially as shown.

4.*I-n a polishing machine for annular work, the combination of a driven rotatable work holding chuck, a power driven polishing. wheel having a positively controlled swing naotion over the work derived POSltively and directlyfrom the rotation of the work holding chuck, and means for: auto-- matically disconnectin the driving mecha nism between" the 'wor holding-chuck and the swinging polishing wheel when the .latter-is withdrawn; from working contact with the work in thechucki In a polishing machine of the scribed, the, combination of a chuck for car- "rying a stove rim and means for 'rotating the same, a slide with means for moving the sametoward and from'the chuck, a bracket pivoted-to the slide and adapted to be swung circularly therefrom, a polishing whee mounted upon the bracket :with means for operating the same and adapted to bembved ha -s d-.

with the bracket to operate circularly across the face of the rim.

6. In a polishing machine of the class de-. scribed, the combination with a chuck for carrying stove rims .and means for rotating the same, of a slide, a swinging bracket pivoted to the slide, a rotatable polishing wheel mounted upon the bracket, means for swinging the bracket upon its pivot to and from the slide to move the wheel across the face of a stove rim. v

7 In a polishingmachine of the class described, the combination with a chuck for carrying stove rims and means for rotating the same, of a slide, a swinging bracket pivoted to the slide, a standard adjustably mounted upon the bracket, a rotary polishing wheel mounted in the standard, means for swinging the bracket upon its pivot to and from the slide to' move the wheel across the face of a stove rim. 7

8. In a polishing machine of the class described, the combination of a base, a spindle and chuck mounted thereon, a slide also mounted upon the base, means for shifting the slide longitudinally upon the bed, a bracket pivoted to the slide, a cam and slide rack for operating the bracket, a polishing wheel carried by the bracket and adapted to operate to and from and across the periphery' of the chuck. I

9. In a polishing machine of the class described, the combination of a-base, a spindle and chuck mountedv thereon, a slide also mounted upon the base, a shaft with connection for rocking the same, a grooved faced cam mounted upon the shaft and engaging a pins of the slide for shifting the same back and forth upon the bed, a bracket'pivoted upon: the slide, means for swinging the bracket upon its pivot to and from the slide, a polishing wheel mounted upon the bracket and having means for driving the same. 1

while being moved with the bracket.

10. The combination of a base, a bracket securedthereon, a spindle and chuck carried by the bracket,'a shaft mounted longitudinally in the base, means for driving boththe spindle and shaft, a slide mounted upon the base, a cam carried by the slide, connections from the shaft for operating the cam, a bracket pivoted to the slide and having connections to be operated by the cam,a polishing wheel mounted upon the bracket and adapted to move across the periphery of the chuck. 1 I

11. In a stove. rim polishing and bufling machine the combination with a base, a saddle slidably mounted thereon, a bracket pivoted to the-saddle, a buifing wheel mounted upon the bracket, arotatable chuck also mounted upon the base for carrying a stove rim means foradjusting both the chuck and bu g wheel toward and from the pivotal point'of the bracket. I

12. In a polishing and bufiing machine, the combination with a rotatable chuck for carrying a stove rim, a biifling wheel mounted to operate circularly "across the face of the rim 'and a spring to retain the jbu wheel in yielding operative contact with the rim when mounted upon the chuck.

13. In a polishing machine the combination of a work holding chuck, a power. driven polishing wheel mounted to have a driven swinging motion to coincide approximately with the generating curve ofthe work, and mechanism to control said'swinging movement of the polishing wheel, all substantially as shown.

14:. In a polishing machine, an adjustably mounted power driven rotatable work holding chuck, a power driven resiliently mounted rotatable polishing wheel having a power driven movement transverse tothe work, and independent means to control the transverse movement of the polishing wheel, substantiallytas shown, I

15. In a polishing m chine, a power driven rotatable-work hol mg chuck, a resiliently mounted rotatable polishing wheel having a power driven movement transverse to the movement of the work, andindependent meansito control said transverse -movement of the polishing wheel, substantially as shown.

Signed at Bridgeport, in the county of Fairfield, and State of Connecticut, this 9th day of March, A. 1)., 1910. v

GEORGE L. WALLACE. A WALTER. VAN PATTEN STEIGER.

Witnessesf i C. M; NEWMAN,

RUTH RAYMOND.

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