US1259494A

US1259494A - Sandpapering and grinding machine.

Info

Publication number: US1259494A
Application number: US21556018A
Authority: US
Inventors: John M Downer
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-02-05
Filing date: 1918-02-05
Publication date: 1918-03-19
Anticipated expiration: 1935-03-19

Description

1. M. DOWNER. SAND PAQEMNG AND GRINDING MACHINE, APPLICATION HLED 15pm 31.1913. HENEWED 11m51.191st 1,259,494, Patented Mar. 19, 191s.

--fnil having 50. .the outerends thereof; v v pulley vsecured to the shaft 6 between .c the bearings 5 around which the driving belt.

9 exterifde;`

Y IOf-is'a flanged pulley secured to the shia-ft as. o .een

JOHN M, DoWNEn, ormononro, ONTARI, CANADA.

SANDIPAPERING AND GRINDING MACHINE.

specification of Lea-ers r'atent.

Application filed July 31, 1913,. Serial No. 782,200.

To all 'wko/lz t may for/earn:

Be it known that LJUHN M. Don/NER, a Subjet ot' the Klingr of (iront Britain. and resident 'of the city of Toi-mito, county of York` Province of Ontario, in the Dominion of Canada, have inyentml certain new and useful l1nprm'emcnte in Handpapering andl Grinding li'lachince. inscribed in the following specification. and illust rated 'in the accon'ipanying drawings, that. form. part of the Same.

` The principal objects of this invention are, to dieet giaving'ot time andv labor in Wood or n'ietal'working Shops lll'lerchy materially reducing 'the coste Voi production.

A further object is to provide a machine withv whioli ao "t "ateland unil'orin-Iirork can. be ,accomplish The principa.l"'feati11e of 'this invention consists in the rangement of parts.l whereby sand papering `or grindingjmoinbers are operatively arrangednpon aeupporting frame and adjustable tables are proifided adjacent to said grinding' nuernberg-upon which thev work to be .ground or Sand pzi'lpered .is supported` In the drawings, ,Qjurc l is a perspective view vof my iinproi machine a portion of the 'frame being l ,kien 'away/.to disclose a portion of the inte-rio) tiona `View of the machine'. Fir. 3 is a. detailed View showing the ad or; the means fo vers;

jus a le eccentric support reciprocating one ofthe "gr I ike' numerals of referenQ res onding parts in each'vfigu e. .Y

eferring tothe drawings, 1 is the main framejoffthe machine fwhieh ie' here shown lin the ,form of a hollow pedestal-.rectangular shapedfin cross .section and tapering up lt'arelbracket members ri id with the adjacent tothe t 'p and'earrying the journal .bearings 5 atthe upper ends. f

ffl-ls ai; sheiftgiurnaled.elte bearings 5. the grinder disks secured to Atrally above the open top 3 of the main e.

'novel construction and are al andy part see? diente cor-- frameI 1 andextending latere ly therefrom- Iatented Mar. 19, 1918. Renewed February 5, 1918. Serial No. 215,560.

1l is an arm rigidly scoured to the front; side of the main frame adjacent", to the bot tom and projecting horizontally outward therefrom ha ving the journal hearing 12 at, theA outer end.

13 is an arm rigidly secured to the front -of Uniflame 1 adjacent tio the top thereof, said aria extending horizontally outward and having' a journal 14 at its outer end arranged in vertical alineinent with the journal 12.

is a vertical spindle journaled in the hearings 12 and 1-1- externling llicrealmve and 1G is la small Spindle Secured tp the ltop ol' the Spindle 15 upon which is nnnlnted a ,grinding vcylinder l'1.7 desired diameter.

18 is' a. pulley Secured to the spindle 15 a short distance above the journal12.

19 is a shaft horizontally arranged Within the main traine 1 having the ends scoured in the Sides oli-Said frame intermediate of its height.

20 isa pulley rotatably arranged upon the shaft 1:'8lue"twi1,en the Sides of the frame.

21 is4 a bracket rigidly secured to the rear side ol the frame and having a bracket 22 adjustably supported thereon in which is jonrnled a pulley 23. Y. h

24 is an endless belt which extendeover the flanged pulley 10 on the shaft 6 and downwardly within the main frame and 11n- I der the pulley 20 from whence itextende ing a quarter turn and extending around i. said pulley it passes rearwardly to the pul- -inggu ley 23 supportedon the adjustable bracket. From thence the elt returns outside of the frame 1 to the pulley 10. The-'belt 24-'is kept in proper tension by adjusting the bracket 22.

26 is a rocker arm pivotally Supported intermediatet of its length on the bracket 2,7 i

at the rearside of the frame 1 to one side of saidfroeker arm having a horizontally arranged fork28 at its outer end. l

29 is a collar rotatably secured upon the spindle 15 a Short distance abovethe bearing 12 and having a pair 'of laterally extenddg'eons 30 which arejournaled' in the bearlngs 31 on lthe outer end of the lfork 28. .l 32 is a vertically arranged fork formed on' the inner end of .the rocker arm 26.

33 is a flanged sleeve secured in one of the which may he oiE any l side Walls of the main frame below the Shaft 19.

34 is a stud fitted into the sleeve 83 and having a reduced threaded outer end 85 upon which is threaded a lock nut 36. The outer extremity of the stud 84 is formed with a square end 37.

-38 is an eccentrically arranged portion of the stud 34 extending inwardly into the frame and upon which is journaled the spur gear wheel 39, said spur gear having` a sleeve hub 4() carrying an eccentric 41 on its inner end. adapted to extend into the fork 32-on the Iinner end ofthe rocker arm 26. The spur gear 39 is adapted to mesh with a spur pinion 42 secured to the pulley 20,

4 but-the said spur gear may be moved out of mesh with said pinion by rotating the stud 34 within the sleeve 33 swinging the eccentrically arranged end 38 downwardly.

43 and 44 are a pair of socket members preferably formed integral with the main frame 1 arranged on the sides thereof in perpendicular alineinent and slightly to one side of the vertical center.

45 'is a square bar rigidly secured in said socket members.

46 is a block. slidabl arranged on the bar 45 and Split longitudinally on one corner having the lugs 47 arranged intermediate of its length inwhich a suitable clamping member 48 isseoureflA 49 is a cylindrical socket member preferably formed integral with the blockdft and arranged 'horizontally and in parallel alineinent with the shaft 6 and preferably in thc same perpendicular' plano. The socket member 49 is preferably formed with a horiaontal cylindrical hole-extending from end to end thereof.

5Gis a bar havin a rounded end fitting in the socket49 an( held from turning by the set screws 51. Theouter portion of the bar 50 is square. l

52 is a square sleeve slidably arranged upon the squared end of the bar 50 and. split longitudinally and formed with the lugs 58 adapted to be clamped together.

54 is an upright carried by the sleeve 52, said .upright having secured at its upper end in a suitable guideway a segmental member 54, said segmental member being adapt-v ed to begswung forward or backward and ha ring an arc-shaped slot 55 therein through which extends the bolt of the clainping'memher 56j The lower edge of the-segmental member is formed with Worm gear teeth adapted to engage the worm 57 secured to the spindle 58 journaled inthe lugs ..extending from one side of the upright 54.

'60 is, a table secured tothe segmental member 54 and having its inner edge ar' ranged close Ato' the grinder disk 7. The table 60 may be adjusted 'to any desired angle by rotating the. spindle 58 bymeans of the hand wheel at the outer end thereof, said spindle operating the worm in the'vworniV gear portion of the segment. The table may be held rigidly in any desired position byI means of the clamp member 56. The tablel may be adjusted close tothe face of the grinder disk or awayfrom the sameby slidirilg the sleeve 52 carrying the upright upon t e be regulated. to any desired position by adjusting the position of the block 46 upon the vertical bar 45.

It ,Will thus be seen that any'arrangement or adjustment may-be had. The construction herein described for the adjustable table for the rinder d isk` is duplicated on eachl side of t e machine.

61 is an arm securedntothe front face ofA the frame immediately above the opening 25 and extending horizontally outward therefrim having a square socket 62 at the outer en 68 is a square Vhar secured in the socket 62 and extending upwardly therefrom having the upper end firmly secured in the square socket portion 64 of the' arm 13 arranged im# inediatelybehind the journal bearing 14.

65 is a block slidably arranged on the bar 63 and split longitudinally and adapted to be clamped thereon to be held in any desired position. Said block having a transversely arranged socket member 66 formed rigid therewith. v

67 is a square bar secured in the socket 66 and extending horizontally outward therefrom past the spindle 15.

68 is a. split sleeve slidably arranged-on the outer end of the bar. 67 and carrying the upright 69, which upright is identical inv/ bar 50 and the height of the table may j by a rocking mechanism precisely the saine as that supporting the table 60, Isaid tableV 7 0 having a circular opening 71 therethrough through which the grinding cylinder 17 carried on the vertical spindle 15 extends.

Thecircle opening 71 is preferably formed with an inwardly projecting' annular flange 72 at the bottom edge. i

'I3 is a'ring member formed with a'anged edge adapted to fit within to rest upon `the flange made removable so that di'erent rings may be used` according to .the sizejo the grinder cylinder. V

This arrangement of rings'is provided S0 that different sizes of 'grlnding cylinders may be used.

In the use of this device, it is set up in the desired position in the shop and the pulley 8 is lbelted up to a suitable driving means. The rotation of the pulley 8 operates the shaft 6 and consequently the grind ing disks 7 so that the mechanic desiring .to

the circle .71 and 72.-. This ring.' is, 4 sizes of.-

having an eccentric end, a rocker arm having a forked end engaging the eccentric carried by said gear Wheel and a lorked outer end operatively connected with the vertical spindle and adapted to reciprocate saidspindle.

5. In a sand-papermg and grinding machine, the combination with a main frame i and horizontally journaled grinder shaft, of

a vertical grinder spindle suitably journaled and` rotated, a journal bearing arranged in the side of the frame, a stud rotatably arlan ed in said 'ournal bearino and havin outer end operatively connected with said vertical spindle to reciprocate the saine, and a spur pinion suitably journaled and rotated and adapted to mesh with said spur gear.

6. In a sancbpapering and grinding inachine, the combination with a main frame and spindle grinding member, a vertically arranged bar rigidly supported from said ra1ne,'a clamping member slidably and nonrotatably secured to said vertical member, a horizontally adjustable member connected to said vertically' adjustable member, and a. table adjustably supported upon the horizontal adjustable member.

7. In asand-papering and grinding machine, the combination with a main frame and rotary grinding member, of a. rigid vertical' guide bar, an arm slidably and nonrotatively supported on said bar, an upright slidably and non-rotatively supported on said arm, and a table adjustably supported on said upright adjacent to said grinding member.

8. In a sandq'uaperinp,` and grindin machine, the combination with a main Irame and rotary grinding member, of a vertically and horizontally adjustable upright arrangedv adjacent to said grinding member, a segmental member supported on said. upright, said segmental member having an arc shaped slot and a projecting angevformed with Worm wheel teeth, a Worm j ournaled on said upright and meshing with said toothed segment, said worm having an extension spindle and a hand Wheel, a clamping member extending through said slot and adapted to lock said segments in various adjusted positions, and a-table securedlto said segment.

9. In a sandpapering and grinding machine, the combination with a main frame and a vertical grinder spindle, of a table adjustably support@ from said frame and having a circular* opening through which said spindle extends, said circular opening having a' hanged lower edge, and a removable ring adapted to it into the opening in said table.

Signed at the city of Toronto, Ontario, Canada, this 28th" da of July 1913. J HN M. DOWNER.

Witnesses:

A. Gr. KELLY, H, L. TRJMBIE.