US218593A - Improvement in bit-stocks - Google Patents
Improvement in bit-stocks Download PDFInfo
- Publication number
- US218593A US218593A US218593DA US218593A US 218593 A US218593 A US 218593A US 218593D A US218593D A US 218593DA US 218593 A US218593 A US 218593A
- Authority
- US
- United States
- Prior art keywords
- head
- bit
- sleeve
- jaws
- stocks
- 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 24
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
- B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
- B23B31/201—Characterized by features relating primarily to remote control of the gripping means
- B23B31/2012—Threaded cam actuator
-
- 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
- Y10T279/17—Socket type
- Y10T279/17411—Spring biased jaws
- Y10T279/17487—Moving-cam actuator
- Y10T279/17504—Threaded cam sleeve
Definitions
- My invention consists of the peculiar combinations of parts, some of which are peculiarly constructed for said combinations, all as hereinafter described.
- Figure 1 is a side elevation of a bit-stock which embodies my invention.
- Fig. 2 is a longitudinal section of the same on line at w of Fig. 1
- Fig. 3 is a side elevation of detached parts thereof.
- the bow or body A of the brace may be of any ordinary kind.
- the head B is provided at its base with a recess or socket to receive the end of the bow A, which is secured thereto by means of the pin a, or in other suitable and ordinary manner.
- This head is screw-threaded at its foot to receive the screw-sleeve C, and at its upper end is provided with a swell or stop, b, larger than the inside diameter of the screw-sleeve, so as to effectually prevent the screw-sleeve from being turned off at the upper end of the head, even when the jaws are fully closed or entirely removed.
- the interior base of the head is provided with a rectangular tapering socket, 0, adapted to receive and hold the end of a tang of a bit.
- the head is slotted through transversely to receive the upper ends of the spring-jaws D D, the lower ends of which are thin, so as to act as springs, which lower ends rest in shallow recesses or slots in the side of the head.
- These jaws are secured to said head by means of screws d d, passing through their lower ends and into the body of the head.
- the upper ends of the jaws have outwardlyinclined projections, which act on the inside and outer end of the sleeve, while their inner face is adapted to engage the bittang just below its shoulder, as in ordinary bit-stocks of this class.
- the jaws are secured to the head before it is permanently secured to the bow A, and preferably before the sleeve is secured, as shown in Fig. 3, which represents said head and jaws before the sleeve is screwed on. After the sleeve has been put in place the head is put upon the bow and the two secured together, after which the screw-sleeve cannot be removed without first detaching the head from the bow.
- the sleeve covers up the point where they are screwed to the head, so that unless some provision is made there can be no access to said screws without removing the sleeve.
- the head B having jaws D D secured thereto by means of screws at their lower end, in combination with the bow of the brace and the screw-sleeve C, having the side orifice, 6, located with special reference to being brought in front of the screws which hold the jaws, substantially as described, and for the purpose specified.
- the head B having a cylindrical threaded periphery, and the stop I; at its outer end, in combination with the screwsleeve moving longitudinally on the cylindrical portion of said head back of said stop, substantially as described, and for the purpose specified.
Description
O W. STOW. Bit-Stock.
No. 218,593. Patented Aug. 12, 1879.
UNITED STATES PATENT OFF-Ion ORSON W. STOW, OF PLANTSVILLE, ASSIGNOR TO PECK, STOW &- WILCOX COMPANY, OF SOUTHINGTON, CONNECTICUT.
IMPROVEMENT IN BIT-STOCKS.
Specification forming part of Letters Patent No. 218,593, dated August 12, 1879 application filed June 19, 1879.
To all whom it may concern.-
Be it known that I, ORSON W. STOW, of Plantsville, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Bit-Stocks, of which the following is a specification.
My invention consists of the peculiar combinations of parts, some of which are peculiarly constructed for said combinations, all as hereinafter described.
In the accompanying drawings, Figure 1 is a side elevation of a bit-stock which embodies my invention. Fig. 2 is a longitudinal section of the same on line at w of Fig. 1, and Fig. 3 is a side elevation of detached parts thereof.
The bow or body A of the brace may be of any ordinary kind. The head B is provided at its base with a recess or socket to receive the end of the bow A, which is secured thereto by means of the pin a, or in other suitable and ordinary manner. This head is screw-threaded at its foot to receive the screw-sleeve C, and at its upper end is provided with a swell or stop, b, larger than the inside diameter of the screw-sleeve, so as to effectually prevent the screw-sleeve from being turned off at the upper end of the head, even when the jaws are fully closed or entirely removed.
The interior base of the head is provided with a rectangular tapering socket, 0, adapted to receive and hold the end of a tang of a bit. Above this socket the head is slotted through transversely to receive the upper ends of the spring-jaws D D, the lower ends of which are thin, so as to act as springs, which lower ends rest in shallow recesses or slots in the side of the head. These jaws are secured to said head by means of screws d d, passing through their lower ends and into the body of the head.
The upper ends of the jaws have outwardlyinclined projections, which act on the inside and outer end of the sleeve, while their inner face is adapted to engage the bittang just below its shoulder, as in ordinary bit-stocks of this class.
The jaws are secured to the head before it is permanently secured to the bow A, and preferably before the sleeve is secured, as shown in Fig. 3, which represents said head and jaws before the sleeve is screwed on. After the sleeve has been put in place the head is put upon the bow and the two secured together, after which the screw-sleeve cannot be removed without first detaching the head from the bow.
In case a jaw should break, or for other reason it is desired to remove a jaw and insert it or a new one, the sleeve covers up the point where they are screwed to the head, so that unless some provision is made there can be no access to said screws without removing the sleeve. I therefore make an orifice, e, in one side of the screw-sleeve, and at a point where it may readily be brought directly in front of the screws, one at a time, as represented in Figs. 1 and 2, through which orifice a screwdriver may be inserted to remove the screw, and then the jaw may be slipped endwise out at the end of the sleeve and a new one inserted and secured.
I am aware that hinged jaws have been placed in a head having an internal rectangular tapering socket, and combined with a screw-sleeve for closing said jaws, and I hereby disclaim the same.
I claim as my invention- 1. In a bit-brace, the head B, having jaws D D secured thereto by means of screws at their lower end, in combination with the bow of the brace and the screw-sleeve C, having the side orifice, 6, located with special reference to being brought in front of the screws which hold the jaws, substantially as described, and for the purpose specified.
2. In a bit-brace, the head B, having a cylindrical threaded periphery, and the stop I; at its outer end, in combination with the screwsleeve moving longitudinally on the cylindrical portion of said head back of said stop, substantially as described, and for the purpose specified.
ORSON W. STOW. Witnesses:
J. BOND, S. R. SHEPARD.
Publications (1)
Publication Number | Publication Date |
---|---|
US218593A true US218593A (en) | 1879-08-12 |
Family
ID=2287994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US218593D Expired - Lifetime US218593A (en) | Improvement in bit-stocks |
Country Status (1)
Country | Link |
---|---|
US (1) | US218593A (en) |
-
0
- US US218593D patent/US218593A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US267060A (en) | Edgar buell | |
US218593A (en) | Improvement in bit-stocks | |
US660204A (en) | Combination-tool. | |
US1424178A (en) | Wrench | |
US184445A (en) | Improvement in drill-chucks | |
US246513A (en) | Frederick w | |
US693256A (en) | Chuck. | |
US137674A (en) | Improvement in lathe-chucks | |
US310987A (en) | church | |
US779084A (en) | Drill or tool holder. | |
US589608A (en) | Half to i | |
US427460A (en) | Tool-handle | |
US494631A (en) | The horris peters co | |
US501110A (en) | Tool-holder | |
US270072A (en) | Bit-stock | |
US403083A (en) | Drill-chuck | |
US862838A (en) | Bit holder and extender. | |
US623435A (en) | Albert | |
USRE7263E (en) | Improvement in devices for holding bits and other tools | |
US141345A (en) | Improvement in bit-stocks | |
US326297A (en) | Tebeitoey | |
US1099369A (en) | Handle-fastening. | |
US315079A (en) | Extension-shank | |
US229197A (en) | stevens | |
US131811A (en) | Improvement in devices for cutting screws |