US282577A - Lathe-dog - Google Patents
Lathe-dog Download PDFInfo
- Publication number
- US282577A US282577A US282577DA US282577A US 282577 A US282577 A US 282577A US 282577D A US282577D A US 282577DA US 282577 A US282577 A US 282577A
- Authority
- US
- United States
- Prior art keywords
- dog
- lathe
- screw
- bits
- jaws
- 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
- 241000282472 Canis lupus familiaris Species 0.000 description 3
- 208000034656 Contusions Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B33/00—Drivers; Driving centres, Nose clutches, e.g. lathe dogs
-
- 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
- Y10T82/00—Turning
- Y10T82/26—Work driver
- Y10T82/262—Lathe dog
Definitions
- My invention relates to 1athe-dogs adapted to grasp and hold in the lathe the ends of rods or shafts upon which screw-threads have been cut or formed.
- the obj cct of my invention is to provide devices whereby such screwthreaded rods may be grasped and held without bruising, mar ring, or injuring the screw-thread.
- a plate or piece of copper or other soft metal This is a clumsy contrivance and objectionable.
- Myinvention consists in the mechanism illustrated in the accompanying drawings, wherein Figure 1 is a front elevation of my improved lathe-dog, and Fig. 2 avertical central section of Fig. 1 at the line a: x.
- the body A does not differ in its general form from those in common use, and it is provided with a set-screw, 0, located and operating in the usual manner.
- a chamber in which fit two bits or jaws, B B, provided upon their contiguous faces with semicircular openings, the two openings being provided with similar screw-threads, so arranged that when the jaws meet the thread is continuous.
- the lower jaw maybe integral with the body, the upper one alone having motion.
- a swinging gate, D holds the bits in place, and permits their removal and the substitution of others.
- a lathe-dog provided with jaws for gripping screw-threaded rods, said jaws having upon their contiguous faces screw-threaded semicircular openings, substantially as shown, and for the purpose specified.
- a lathe-dog for holding screw-threaded rods provided with a chamber for the reception of bits, in combination with pairs of bits adapted to fit in said opening, said bits being provided upon their contiguous faces with semicircular. screw-threaded openings, substantially as shown, and for the purpose specified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Scissors And Nippers (AREA)
Description
(No Model.)
W. E. SIDNELL.
LATHE DOG.
Patented Aug. '7, 1888.
W'Z'Zhesses fm/enfor:
m z m .a h 2 m UNITE STATES PATENT OFFICE.
\VILLIAM E. SIDNELL, OF CUYAHOGA FALLS, OHIO.
LATH E-DOG.
SPECIFICATION formingpart of Letters Patent No. 282,577, dated August '7, 1883.
Applicalion filed February 2, 1883. (No model.)
To all whom, it may concern/.-
Be it known that I, XVILLIA E. SIDNELL, a citizen of the United States, residing at Guyahoga Falls, in the county of Summit and State of Ohio, have invented a new and useful Improvement in Lathe-Dogs, of which the following is a specification.
My invention relates to 1athe-dogs adapted to grasp and hold in the lathe the ends of rods or shafts upon which screw-threads have been cut or formed.
The obj cct of my invention is to provide devices whereby such screwthreaded rods may be grasped and held without bruising, mar ring, or injuring the screw-thread. Hereto-' fore it has been customary to accomplish this end by interposing between the rod and the grasping-surfaces a plate or piece of copper or other soft metal. This is a clumsy contrivance and objectionable.
Myinvention consists in the mechanism illustrated in the accompanying drawings, wherein Figure 1 is a front elevation of my improved lathe-dog, and Fig. 2 avertical central section of Fig. 1 at the line a: x.
The body A does not differ in its general form from those in common use, and it is provided with a set-screw, 0, located and operating in the usual manner. Within the body A is a chamber, in which fit two bits or jaws, B B, provided upon their contiguous faces with semicircular openings, the two openings being provided with similar screw-threads, so arranged that when the jaws meet the thread is continuous. The lower jaw maybe integral with the body, the upper one alone having motion. A swinging gate, D, holds the bits in place, and permits their removal and the substitution of others.
In operation the screw-thread of the jaws should be the same asthe thread on the rod to be clamped, whereby the latter can be firmly held without injury. 7
To adapt the dog to rods having screwthreads of different pitch and size, different dogs may be used or different bits for the same dog.
I claim as my invention- 1. A lathe-dog provided with jaws for gripping screw-threaded rods, said jaws having upon their contiguous faces screw-threaded semicircular openings, substantially as shown, and for the purpose specified.
2. A lathe-dog for holding screw-threaded rods, provided with a chamber for the reception of bits, in combination with pairs of bits adapted to fit in said opening, said bits being provided upon their contiguous faces with semicircular. screw-threaded openings, substantially as shown, and for the purpose specified.
In testimony that I claim the foregoing I have hereunto set my hand this 30th day of December, 1882.
XVILLIAM E. SIDNELL.
\Vitnesses:
CHAS. F. HARRISON, G. 1?. HUMPHREY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US282577A true US282577A (en) | 1883-08-07 |
Family
ID=2351786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US282577D Expired - Lifetime US282577A (en) | Lathe-dog |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US282577A (en) |
-
0
- US US282577D patent/US282577A/en not_active Expired - Lifetime
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