US1608463A - Chuck - Google Patents

Description

Nov. '23 1926,

w. M. CUTLIER CHUCK Filed March 23- 1923 2 sheeisrsheefi 1 Ira/220221302 v WaZZaceM OuZZar;

Nov. .23- 192,6. 1,608,463

w. M. CUTLER CHUCK Fild March 25. 1923 2 Sheets-Shebt 2 1721721271; 70 W WaZZaceMOzJZe;

Patented Nov. 23, 192.6.

" UNITED STATES l,6ll8,l 63

PATENT OFFICE.

WALLACE M. CUTLER, 0F WINDSOR LOCKfil TON (it SON COMPANY, OF WINDflUEt LCLMQ,

CONNECTICUT.

CO-YM'NECTIC JT, ABSIG'NOR TO THE E. I-ICR- CDI INECTICUT, A CORPORATION OF CHUCK.

Application filed March 23, 1923. Serial No. 627L133.

My invention relates to chucks and has among its objects the provision oi improved means for operating the jaws when the chuck is rotating and for permitting a hammer blow to be impart d to the jaws.

The invention will be best understood from the following description when read vention;

Fig. 2 is a section on the line 2-2 of Fig. 1;

Fig. 3 is a rear view of the chuck accordmg t Figs. 1 and 2; and

Fig. l is a section on the line le-d of Fi 2.

Referring to the drawings and to the preferred embodiment of my invention 1 have shown a chuck which comprises a body 1 the face of said body having the radially disposed slots 3 which are formed to provide guideways for the jaws 5, said jaws at their rearward sides having teeth 7 engaging the teeth 9 on the scroll wheel 11. It will be understood that by this construction when the scroll wheel is rotated the jaws will be moved radially relatively to the body to grip or release the work depending upon the direction of rotation of the scroll wheel.

As shown the rearward side of the body is provided with an annular recess 13 which intersects the slots The scroll wheel is mounted for rotation relatively to the body in this recess and is .ined therein by means of a ring 15, the rearward side oi the recess 13 being on 17 to receive the outer circumferential portion 01 the ring and providing a shoulder 19 which the ring abuts. For holding the ring against the shoulder 19. 1' provide the bolts 21 which have heads 23 fitting the annular recess 25' on the rearward surface of the ring. As clearly shown in Fig. 4 the bolts 21 pass tl'irough notches 27 on the outer peripheral surface of the ring so to permit a limited relative movement between the ring and the body.

Referring particularly to Figs. 2 and 1 the rearward side of the scroll ring is provided with an annular flange 29 having the internal gear teeth 31, while the ring 15 is provided with the internal gear teeth 33. The gear teeth on the scroll ring have a slightly greater pitch diameter than the gear teeth on the ring 15, and meshing with both sets of gear teeth are the ditlerentialpinions which are rotatively mounted on pins 3' carried by a hand wheel 39.

It will be noted by the above construction that it the hand wheel is rotated relatively to the body of the chucl: the differential pinions 35 will cause the scroll wheel to rotate relatively to the body, the direction of rotation oi the scroll wheel depending upon the direction of rotation of the hand wheel. The lost motion between the ring 15 and the body permitted by the notches 27 allows by suddenly taking up the lost motion a hammer blow to be given to the jaws so as to cause them firmly to grip the worlr or readily to release the work.

The rearward side of the body adjacent the rearward side of the recess 13 is reduced in diameter at ll affording the shoulder .1.3. Un this portion oi reduced diameter and abutting the shoulder is aring 4.5 provided. with the flange l7. The ring is secured to the body by means or one or more screws l8 and when so assembled with the body holds the hand wheel in position. The ring provides a ball race for the balls 49 forming an anti-friction bearing for the hand wheel upon the ring.

The portion of the hand wheel adjacent the ring 15 is recessedto form an annular shoulder fitting the rear end of the inner side of the ring, and carried by the hand wheel is a packing 51 which acts to prevent leakage of lubricant contained in the chamber atforded by the flange 29 ot the scroll wheel and by the ring 15.

The body is secured to a part 58 by means of the bolts 55, this part abuttingthe rearward side of the body and fitting an annular recess 57 formed by an enlargement at the rearward end of the bore of the ring 45.

For causing rotation of the ring 39 when the chuck is rotated and thereby moving the jaws to release the work or to grip the work as the case may be I provide the rearward end of the hand wheel with an internal flange 59 which in cross section is wedge body,

shaped tapering towards the axis of the chuck. I utilize the flange 59 as a brake surface, for this purpose providing the shoe 61 which has an arcuate recess 63 for engaging the sides of the flange. The shoe 61 is pivoted at'65 at the end of a hand lever 67, the latter being :tulerumed to a pivot pin 69 carried by a lixed part of the lathe.

he upper side of the brake shoe is concave as shown at 71 and normally is held by the weight of: the lever against the exterior annular surface 73 of the part 53. This prevents tilting of the shoe on its pivot and holds the outer side of the shoe in parallelism with the flange 59 which insures that the shoe will not accidentally engage the flange 59 and always will be in position efl'ectively to engage the flange when the operator so desires. Further it will be noted that the surface 73 acts as a limit stop for the shoe and that by forcibly causing the shoe to engage the surface 73 a brake is provided for quickly stopping rotation of the chuck when it is disconnected from the source of power driving it.

1 Although I have described for purposes of illustration one specific embodiment of my invention it is to be understood that I am not limited thereby to its particular mechanical details, but that within the scope of my invention wide deviations may be made therefrom without departing from the spirit or my invention.

Claims- 1. A chuck comprising, in combination, a body, jaws carried by said body, a jaw operating part rotatable relatively to said body, means including a ring for actuating said part, said ring being rotatable relative to said body, said ring having a rearwardly extending annular flange the periphery of said flange being for application of the hand oi the operator and an annular flange interiorly oi said rearwardly extending flange, said annular flange being wedge shaped in cross-section, a brake shoe surrounded by said rearwardly extending flange and adapted to engage opposite surfaces of said annular flange, and means for operating said brake shoe.

2. A chuck comprising, in combination, a body, jaws carried by said body, a jaw operating part rotatable relatively to said body, means including a ring for actuating said part, said ring being rota-table relatively to said body, said ring having a rearwardly extending annular flange the periphery of said flange being for application of the hand of the operator and an annular flange interiorly of said rearwardly extending flange, and braking means for engaging opposite sides of said annular flange.

8. A chuck comprising, in combination, a

jaws carried by said body, a jaw operating part rotatable relatively to said body, means including a hand wheel for ac tuating said part, said hand wheel being rotatable relatively to said body and having a rearwardly extending flange for application of the hand of the operator, an internal radial flange on said rearwardly extending flange of said hand wheel, and braking means for engaging said radial flange.

a. A chuck comprising, in combination, a body, crating part rotatable relatively to said body, means including a ring for actuating said part, said ring being rotatable relatively to said body, said ring having a rearwardly extending annular said flange being for application of the hand of the operator and an annular flange interiorly or" said rearwardly extending flange, a brake shoe surrounded by said rearwardly extending flange and for engaging opposite sides of said annular flange, and a lever for operating said brake shoe.

5. A chuck comprising, in combination, a body, jaws carried by said body, a jaw operating part rotatable relatively body, means including a ring for actuating said part, said ring being rotatable relatively to said body, said ring: having a rearwardly extending annular flange the periphery of said flange being for application of the hand of the operator and an an nular flange interiorly of said rearwardly extending flange, a brake shoe surrounded by said rearwardly extending flange and having portions straddling said annular flange, and means for causing said portions to engage said annular flange.

6. A chuck comprising, in combination, a body, jaws radially movable relatively to said body, a scroll wheel for operating said jaws mounted in an annular recess in said body, a flange with internal gear teeth on said scroll wheel, a ring with internal gear teeth connected to said body and retaining said scroll wheel in said recess, a hand wheel carrying a differential pinion meshing with said gear teeth on said scroll wheel and said gear teeth on said ring, an internal flange on said hand wheel and a brake for engaging said flange.

7. A chuck comprising, in combination, a body, jaws radially movable relatively to said body, a scroll wheel for operating said jaws mounted in an. annular recess in said body, a flange with internal gear teeth on said scroll. wheel, a ring with internal gear teeth connected to said body and retaining said scroll wheel in said recess, said ring jaws carried by said body, a jaw op flange the periphery of to said i lid having a lost motion connection with said body, a hand wheel carrying a diflerential pinion meshing with said gear teeth on said scroll wheel and said gear teeth onsaid ring, an internal flange on said hand wheel and a brake for engaging said flange.

8. A chuck comprising, in combination, a

t lt? til) body, jaws radially movable relatively to said body, a scroll wheel for operating said jaws mounted in anannular recess in said body, a flange with internal gear teeth on said scroll wheel, a ring with internal gear teeth connected to said body and retaining said scroll wheel in said recess, iid body at its rearward side having an exterior portion of reduced diameter affording a shoulder, a race way fitting said portion of reduced diameter and abutting said shoulder, a part to which said body is attached abutting said race way and said body, a hand wheel mounted on said race way, and differential pinion means carried by said hand wheel and meshing with said gear teeth on said scroll wheel and with said gear teeth on said ring.

9. A chuck comprising, in combination, a body, jaws radially movable relatively to said body, a scroll wheel for operating said jaws mounted in an annular recess in said body, a flange with internal gear teeth on said scroll wheel, a ring with internal gear teeth connected to'said body and retaining said scroll wheel in said recess, said body at its rearward side having an exterior portion of reduced diameter affording a shoulder, a race way fitting said portions of reduced diameter and abutting said shoulder, a part to which said body is attached abutting said race way and said body, a hand wheel mounted on said race way, an exterior flange on said race way for retaining said hand wheel on said race way, and differential pinion means carried by said hand wheel and meshing with said gear teeth on said scroll wheel and with said gear teeth on said ring.

10. A chuck comprising, in combination, a body, jaws radially movable relatively to said body. a scroll wheel for operating said jaws mounted in an annular recess in said body, a flange with internal gear teeth on said scroll wheel, a ring with internal gear teeth connected to said body and retaining said scroll in said recess said body at its rearward side having an exterior portion of reduced diameter affording a shoulder, a race way fitting said portion of reduced diameter and abutting said shoulder, a part to which said body is attached abutting said race way and said body, a hand wheel mounted on said race way, a rearwardly extending flange on said hand wheel, a brake surrminded by and for engaging said'flange, and differential pinion means carried by said hand wheel and meshing with said gear teeth on saidscroll wheel and with said gear teeth on said ring.

11. A chuck having in combination, a body,jaws. a scroll wheel for moving said jaws, a part to which said body is attached, a race way surrounding said body and part, a hand wheel having an internal flange 59, said hand wheel. being carried by said race way, differential gearing connecting said scroll "wheel and hand wheel, and a brake shoe 61 between and adapted to engage said part and said flange.

12. A chuck comprising, in combination, a body, jaws, a jaw operating part, gearing for moving said jaw operating part relatively to said body, means for actuating said gearing comprising an annular member rotatable relatively to said body but normally rotating with said body, a brake shoe for engaging said annular member, means affording a stop limiting the motion of said shoe when moved away from said annular member, and said shoe being pivoted to an operating lever for said shoe arranged to normally hold said shoe against said means affording said limit' stop.

13. A chuck comprising, in combination, a body, jaws, a jaw operating part, gearing for moving said jaw operating part .rela tively to said body, means for actuating said gearing comprising a member with an internal annular surface, said member normally rotating with said chuck but being mounted on said chuck for rotation relatively to the body of said chuck, a part rotating with said chuck and having an exterior annular surface surrounded by said internal annular surface, a brake shoe positioned between said annular surfaces, said brake shoe having on one side a convex surface for engaging said internal annular surface and on its other side a concave surface for engaging said exterior annular surface, means normally holding said brake shoe against said exterior anmilarsi'urface, and said means permitting said brake shoe to be forcibly pressed selectively against either of sad annular surfaces.

1%. A chuck comprising, in combination, a body, jaws, a jaw operating part, gearing for moving said jaw operating part, means for actuating said gearing comprising a member mounted for rotation relatively to said body but normally rotating therewith, and brake means for selectivelycausing rotation of said member relatively to said body or causing rotation of said chuck to be retarded.

15. A chuck comprising, in combination, a body, jaws, a jaw operating part, gearing for moving said jaw operating part relatively to said body, means for actuating said gearing comprising a member with an internal annular surface, said member normally rotating with said chuck but being mounted on said chuck for rotation relatively to the body of said chuck, a part rotating with said chuck and having an exterior annular surface surrounded by said internal annular surface, a brake shoe positioned between said annular surfaces, said brake shoe having on one side a convex surface for engaging said internal annular surface and on its other side a concave surface for engaging gearing comprising an annular said exterior annular surface, said brake shoe being pivoted to an operating lever, and

said lever having its fulcrum so disposed that said lever normally holds said shoe against said exterior annular surface.

16. A chuck comprising, in combination, a body, aws, aw operating part, gearing for moving said jaw operating part relatively to said body, .means for actuating said gearing comprising an annular member rotatable relatively to said body but normally rotating with said body, a brake shoe for engaging said annular member, a movable part carrying said shoe for applying said shoe to said annular member, said shoe being movable relatively to said part, a membervhav ing an annular surface rotating with said chuck, and said brake shoe being so disposed relatively to said annular surface that it is normally held thereby in parallelism with said annular member.

17. A chuck comprising, in combination, a body, jaws, a jaw operating part, gearing ror moving said aw operating part relatively to said body, means for actuating said member rotatable relatively to said body but normally rotating with said body, a brake shoe for engaging-said annular member, movable operating means for said brake shoe to which said brake shoe is pivotally connected for adjusting itself to said annular member, and a part rotating with said chuck for preventing tilting ofsaidshoe on its pivotal connection' 18. A chuck comprising, in combination, a body, jaws, a jaw operatingpart, gearing ior moving said operating part relatively to said body, means for actuating said gearing comprising an annular member rotatable relatively to said body but normally rotating with said body, a brake shoe for engaging said annular member, movable opcrating means for said brake shoe to which annular said brake shoe is relatively movable for ad ustingitselt to said annular member, and means rotating with said chuck for limiting such relative movement.

19. A chuck comprising, in combination, a

"body, jaws, a jaw operating-part, a hand wheel rotatable relatively to said body for.

moving said jaw operating part, an annular fian e on said hand wheel a brake shoe for engaging said annular flange, movable operating means for said shoe to which said shoe is movably tastened't'or adjusting it self to said flange, and means rotating with said chuck for holding said shoe when in its disen 'ed position in parallelism with said flange. i V

- 120. Achuck comprising, in combination, a body, jaws, a aw. operating part, a hand 7 wheel rotatable relatively to saidv body for moving said operating part, an annular 'f-fla 'e; on said hand wheel, a. brake shoe for engaging said annular flange, operating means "for said'shoe, means comprising an annular surface rotating with said chuck. said annular surface holding said shoe when in its disengaged position in parallelism with said flange, and said operating means for said shoe being eli ective to forcibly press said shoe against said annular surface for braking said chuck at the will of the operator.

21. A chuck comprising, in combination, a body, jaws, a jaw operating part, diii'erential gearing for moving said jaw operating said body and jaw operating part, and means permitting a limited rotative movement of one of said annular series of gear'teeth relatively to the part carrying it.

23. A chuck comprising, in combination, a body, jaws, a jaw operating part, difierential means for operating said jaw operating part, said means including a difierential gear mounted for bodily rotation relatively to said body and meshing with two annular series of gear teeth respectively carried by said body and jaw operating part, and means permitting a limited rotative movement relatively to said body of said annular series of gear teeth carried by said body.

2th A chuck comprising, in combination,

body, jaws, a jaw operating part, differ ential means for operating said-jaw operat-ing part, said means including a differential gearmounted for bodily rotation relatively to said body, said gear meshing with an annular series of gear teeth carried by said jaw operating part, a ring carried by said body and having a limited rotative .movement relatively to said body, and said ring having an annular series of gear'teeth meshing with said differential gear.

H 25. A chuck comprising, in combination, a body, jaws. a aw operating part, differential means for operatingsaid aw operating part, said means including a differential gear mounted for l.)0&ily rotation relatively to said body, said gear meshing with an annular series of gear teeth carried by jaw operatingpart, a ring having an annular series or" gearteeth meshing with said gear, andbolts securing said ring to said body and permitting a limited rotative movement of said ring relatively to said body.

26. A chuck comprising, in combination, a body, jaws, a jaw operating part, differential gearing for operating said jaw operating part, said differential gearing comprising a. train of gears, and a mounting for one of said gears permitting lost motion in said train. 7

27. A chuck comprising, in combination, a body, jaws, a jaw operating part, differential gearing for operating said jaw operating part, said differential gearing compris ing a train oi gears, and means permitting a limited lost motion other than back lash in said train of gears.

28. A chuck comprising, in combination, a body, jaws, a jaw operating part, a member mounted for rotation on said body and having a rearwardly projecting annular flange for manual operation of said member, annular series of gear teeth carried by both said body and jaw operating part, said member having rotatably mounted thereon a pinion meshing with both annular series of gear teeth and forming therewith two gear sets of slightly different ratio, and a lost motion connection between one of said annular series of gear teeth and the part carrying it.

29. A chuck comprising, in combination, a body having a rearwardly opening recess, radial slots on the forward face of said body intersecting said recess, a scroll wheel on said recess, jaws in said radial slots having rack teeth meshing with said scroll wheel, said scroll wheel carrying a gear, a ring gear having a lost motion connection with said body, a hand wheel at the rear of said ring gear, pinions rotatably mounted on said wheel meshing with both said gear carried by said scroll wheel and said ring gear, and said pinions and gears forming two gear sets of slightly different ratio.

30. A chuck comprising, in combination, an annular body, jaws, a jaw operating part, a hand wheel mounted for rotation on said body at the rear of said body and having anannular exterior, said body at its periphery abutting said hand wheel, a pair of gears respectively carried by said body and jaw operating part, a pinion rotatably mounted on said hand wheel, said pinion meshing with both gears and forming therewith two gear sets of slightly different ratio, and a lostmotion connection between one of said gears and the part carrying it.

31. A. chuck having in combination, a body, a rearwardly opening annular recess in said body, radial slots on the forward face of said body intersecting said recess, a scroll wheel in said recess, aws in said slots having rack teeth meshing with said scroll wheel, an annular flange provided with internal gear teeth carried at the rearward side of said wheel, said recess at its rearward side having an annular enlargement, an internal ring gear received in said recess, bolts holding said ring gear on said body andpermitting lost motion between said body and ring gear, a hand wheel mounted for rotation on said body and closing the rearward side of said recess, studs on said hand wheel projecting into said recess, a pinion on each stud, and each pinion meshing with both the gear teeth carried by said scroll wheel and said ring gear and forming therewith two gear sets of slightly different ratio.

32. A chuck comprising, in combination, a body, jaws radially movable relatively to said body, a scroll wheel for operating said jaws mounted in an annular recess in said body, a flange with internal gear teeth on said scroll wheel, a ring with internal gear teeth connected to said body for limited rotative movement relatively to said body and retaining said scroll wheel in said recess, a. hand wheel carrying a differential pinion meshing with said gear teeth on said scroll wheel and said gear teeth on said ring, an internal flange on said hand wheel and a brake for engaging said flange.

In testimony whereof, I have signed my name to this specification.

WALLACE M. CUTLER.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,608,463, granted November 23, 1926, upon the application of \Vallace M. Cutler, of Vindsor Locks, Connecticut, for an improvement in Chucks, errors appear in. the printed specification requiring correction as follows: Page 3, line 28, claim 9, for the word portions read portion, and line 45, claim 10, after the word scroll insert the Word wheel; and that the said Letters Patent should be read With these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of January, A. D. 1927.

[smn] M. J. MOORE,

Acting Uowwm'ssz'oner of Patents.

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