US190043A - Improvement in chucks - Google Patents
Improvement in chucks Download PDFInfo
- Publication number
- US190043A US190043A US190043DA US190043A US 190043 A US190043 A US 190043A US 190043D A US190043D A US 190043DA US 190043 A US190043 A US 190043A
- Authority
- US
- United States
- Prior art keywords
- levers
- ring
- seat
- wheel
- chucks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000001847 Jaw Anatomy 0.000 description 8
- 230000000994 depressed Effects 0.000 description 4
- 210000000614 Ribs Anatomy 0.000 description 2
- 229920002877 acrylic styrene acrylonitrile Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/18—Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in planes containing the axis of the chuck
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/18—Pivoted jaw
Definitions
- This invention relates to that class of special tools which are adapted to certain definite operations, though thisV invention is not.
- the object of my invention is to provide a chuck or holder which shall .receive a bevel-wheel and automatically sieze, true, and hold it in position. It therefore consists of a suitable bed-plate and holding jaws, which are caused to advance or recede by the action of a cam-ring, which ring is self-adjusting, so that said jaws encounter, with equal force, unequal surfaces.
- Fig. 3 is a similar section, adapted to illustrue position on the seat c', because in no other position can the points of the cogs find a steady engagement with the surfaces of the seat.
- three or more cogs or radial ribs are placed upon the seat a, and these mesh with the cogs of the gear B, when the latter is in position.
- each lever D has a slot for the pivot-pin c, so that said lever may move in a radial direction, when required to do so, and this enables it Lo advance and recede as to the axis of the chuck and give the blank ample room for escape when the holding-levers are withdrawn.
- an adjustable pin or stud., F which projects downward into a -cam -slot, g, in a cam-ring, H.
- the cam-grooves g are similar segments of equal spirals, and their bottoms are similar inclined planes, so that when saidV cam-ring is rotated about the axis of the seat a. all the levers D are simultaneously moved forward or backward, and their inner ends elevated or depressed, as the case may be and said lever would, at the samemoment and with equal force, engage with the surface of the bevel-wheel B, provided said surface was true and all in the same plane.
- LugsJ or other suitable devices may be 2 Y redone placed upon the ring H, to facilitate or effect the necessary revolution of the same.
- a chuck for holding special members or devices provided with a central seat adapted to receive and hold such special member, combined with self-adjusting holding levers or jaws, to gripe and hold said member, substantially as set forth.
- a clutch provided with a conical seat, a, having three bearing-points, a', combined with levers l), actuated by a ring, H, having inclined spiral grooves, whereby the points of said levers are advanced and depressed by a single movement of said ring.
- the levers D constructed with lon gitudinal slots for the fulcrum-pins e, combined with a cam-ring provided with spiral grooves, having inclined bottoms, as set forth.
- a chuck having automatic levers or jaws D D for griping and holding the object to be bored, and the seat a, to receive and support said object, combined with a hub at the back and a truly-axial guide-hole, m, therein, to receive and guide the point of the boring-tool, as set forth.
- the teeth c c o constructed on the constructed on the convex surface of the chuckplate a, substantially as set forth, and for the purpose described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Description
ASA HRD, OF vYONKERS, -NEW YORK.
IMPROVEMENT IN CHUCKS.
Specification forming part of Letters Patent N0. 190,043, dated April 24, 1877; application filed February 21, 1877.
To all 'whom it may concern:
Be it known thatI, ASA HURD, of Yonkers, in the county of Westchester and State of New York, have invented a new and useful Improvement in Chucks, of which the following specification is a full and clear description:
This invention relates to that class of special tools which are adapted to certain definite operations, though thisV invention is not.
- restricted to a range of operations limited in that way. Therefore, while I show and particularly describe my invention as I construct it for use in boring the hubs of bevel-gear wheels, it is not to be understood that I restrict myself to any organization adapted to that work only, for it is evident that, without any change in its principle of action or material modification of form, it may be adapted to hold work of any otherdescription.
It is desirable to bore' the hubs of bevelgear wheels, and it is apparent that the axis `of the boring-tool must coincide exactly with the axis of the cone of the wheel.
The object of my invention (inthe form shown) is to provide a chuck or holder which shall .receive a bevel-wheel and automatically sieze, true, and hold it in position. It therefore consists of a suitable bed-plate and holding jaws, which are caused to advance or recede by the action of a cam-ring, which ring is self-adjusting, so that said jaws encounter, with equal force, unequal surfaces.
That others may fully understand my invention, I will particularly describe it, havin g reference to the accompanying drawing, wherein- Figure 1 is a perspective view of my chuck as applied to the holding of bevel-wheels. Fig.2 is a transverse section ofthe same.
. Fig. 3 is a similar section, adapted to illustrue position on the seat c', because in no other position can the points of the cogs find a steady engagement with the surfaces of the seat. To cause the cent-er of the gear-wheel B to assume its true position and to prevent any side movement therefrom, and also to keep said gear from rotating, three or more cogs or radial ribs are placed upon the seat a, and these mesh with the cogs of the gear B, when the latter is in position.
At equal distances from each other I place three radial holding-levers, D D D, which have their bearings or fulcrum-points in lugs d d, located in pairs equidistant from the axis of the seat c. The lever D has a slot for the pivot-pin c, so that said lever may move in a radial direction, when required to do so, and this enables it Lo advance and recede as to the axis of the chuck and give the blank ample room for escape when the holding-levers are withdrawn. Ar the rear end of each lever D there is an adjustable pin or stud., F, which projects downward into a -cam -slot, g, in a cam-ring, H. The cam-grooves g are similar segments of equal spirals, and their bottoms are similar inclined planes, so that when saidV cam-ring is rotated about the axis of the seat a. all the levers D are simultaneously moved forward or backward, and their inner ends elevated or depressed, as the case may be and said lever would, at the samemoment and with equal force, engage with the surface of the bevel-wheel B, provided said surface was true and all in the same plane. But, in practice, this will seldom, if ever, be the case, and a self-adj ustment of the levers is necessary, 1n order to enable them to gripe and hold every wheel presented, notwithstanding inequal- 1t1es of surface, and this end is accomplished by seating the ring H upon the concave rim I of the chuck-plate A, so that when the forward and downward movement of the point of one lever, D, is arrested by protuberance of the wheel before the other said levers have reached an engagement, said ring H will tip or move laterally on said seat, to force up the free levers, and will continue to do so until all the levers have engaged with the wheel B, l
after which the continued motion of the ring H will exert an equal force upon all the levers.
LugsJ or other suitable devicesmay be 2 Y redone placed upon the ring H, to facilitate or effect the necessary revolution of the same.
If it is desired that the boring of the hub of wheel B shall be as accurate as it is possible to be, it is advisable to place upon the back of the chuck-plate A a hub or boss, K, and through this boss, coincident with the axis of the same, a guide-hole, m, is bored, and into this hole the guide-pin of the boringtool enters, to guide said tool and keep it tru ly centered while completing the bore, which, in such case, will have been begun by a tool of less diameter.
Having described my invention, what I claim as new is- 1. A chuck for holding special members or devices, provided with a central seat adapted to receive and hold such special member, combined with self-adjusting holding levers or jaws, to gripe and hold said member, substantially as set forth.
2. A clutch provided with a conical seat, a, having three bearing-points, a', combined with levers l), actuated by a ring, H, having inclined spiral grooves, whereby the points of said levers are advanced and depressed by a single movement of said ring.
having pins F entering said grooves, whereby v said levers are simultaneously advanced and adapt themselves to unequal surfaces, as set forth.
4. The levers D, constructed with lon gitudinal slots for the fulcrum-pins e, combined with a cam-ring provided with spiral grooves, having inclined bottoms, as set forth.
5. A chuck having automatic levers or jaws D D for griping and holding the object to be bored, and the seat a, to receive and support said object, combined with a hub at the back and a truly-axial guide-hole, m, therein, to receive and guide the point of the boring-tool, as set forth.
' 6. The teeth c c o, constructed on the constructed on the convex surface of the chuckplate a, substantially as set forth, and for the purpose described.
ASA HURD. [L. s.]
Witnesses:
STEPHEN G. WHITE,
DAVID SCOTLAND.
Publications (1)
Publication Number | Publication Date |
---|---|
US190043A true US190043A (en) | 1877-04-24 |
Family
ID=2259450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US190043D Expired - Lifetime US190043A (en) | Improvement in chucks |
Country Status (1)
Country | Link |
---|---|
US (1) | US190043A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2683606A (en) * | 1950-12-30 | 1954-07-13 | Allis Chalmers Mfg Co | Gear holding chuck |
US2747882A (en) * | 1953-09-28 | 1956-05-29 | Garrison Machine Works Inc | Gear chuck |
US2924190A (en) * | 1952-10-31 | 1960-02-09 | Westinghouse Electric Corp | Fixture for soldering a prefocusing collar to a base of an incandescent projection lamp |
US4624043A (en) * | 1982-09-29 | 1986-11-25 | The Boeing Company | Quick release tool holder for robots |
US4838849A (en) * | 1987-02-10 | 1989-06-13 | Dideco S.P.A. | Chuck device for holding a cell for the centrifugation of blood |
US6394691B1 (en) * | 2000-07-21 | 2002-05-28 | George V. Stephan | Gripping apparatus |
US6530719B1 (en) * | 2000-07-21 | 2003-03-11 | George V. Stephan | Gripping and maneuvering apparatus |
-
0
- US US190043D patent/US190043A/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2683606A (en) * | 1950-12-30 | 1954-07-13 | Allis Chalmers Mfg Co | Gear holding chuck |
US2924190A (en) * | 1952-10-31 | 1960-02-09 | Westinghouse Electric Corp | Fixture for soldering a prefocusing collar to a base of an incandescent projection lamp |
US2747882A (en) * | 1953-09-28 | 1956-05-29 | Garrison Machine Works Inc | Gear chuck |
US4624043A (en) * | 1982-09-29 | 1986-11-25 | The Boeing Company | Quick release tool holder for robots |
US4838849A (en) * | 1987-02-10 | 1989-06-13 | Dideco S.P.A. | Chuck device for holding a cell for the centrifugation of blood |
US6394691B1 (en) * | 2000-07-21 | 2002-05-28 | George V. Stephan | Gripping apparatus |
US6530719B1 (en) * | 2000-07-21 | 2003-03-11 | George V. Stephan | Gripping and maneuvering apparatus |
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