US135270A - Improvement in locks for sewing-machines - Google Patents
Improvement in locks for sewing-machines Download PDFInfo
- Publication number
- US135270A US135270A US135270DA US135270A US 135270 A US135270 A US 135270A US 135270D A US135270D A US 135270DA US 135270 A US135270 A US 135270A
- Authority
- US
- United States
- Prior art keywords
- bolt
- plate
- sewing
- bar
- improvement
- 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
- 239000000203 mixture Substances 0.000 description 4
- 230000036633 rest Effects 0.000 description 4
- 230000001721 combination Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/02—Locks or fastenings for special use for thin, hollow, or thin-metal wings
- E05B65/025—Locks or fastenings for special use for thin, hollow, or thin-metal wings for lockers
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- 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
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5093—For closures
- Y10T70/5097—Cabinet
- Y10T70/5111—Projectable bolt
Definitions
- Figure 1 is a detail view of the inner side of my improved lock.
- Fig. 2 is a detail section of the same taken through the line 00 m, Fig. 1.
- Fig. 3 is a detail view, illustrating a modification of the same.
- Fig. 4 is a detail section of the same taken through the line y y, Fig. 3.
- My invention has for its object to furnish an improved sewing-machine lock which shall be so constructed as to require no second hole in the striker-plate to receive a steady-pin to prevent the case from sliding upon the table, and which shall at the same time be simple in construction and effective in operation; and it consists in the combina-tion of a fixed projectingplate or steady-pin with the lockinghook of the look, as and for the purpose hereinafter set forth.
- A is the plate of the lock, which is made with an inwardly-projecting flange upon its lower edge to overlap the lower edge of the case, box, or cover of the machine.
- B is the steady pin or bar, which is secured to the plate A by the rivet a.
- the lower end of pin or bar B passes through the bolt-slot in the flange of the plate A, and is made of a breadth equal to the length of the said slot, so that the said bar can have no movement.
- the lower projecting end of the bar B is beveled off so that it can readily pass into the slot in the striker-plate attached to the table.
- 0 is the hook-bolt, which is pivoted to the steady-bar B and to the plate A by the rivet a that secures the said bar to the said plate.
- the bolt G has a hook formed upon its lower end to hook upon the striker-plate and thus lock the machine.
- the part of the bolt 0 that passes through the slot in the flange of the plate A is made narrower than the length of the said slot, so that the said bolt may have a lateral movement.
- the lower end of the bolt 0 is beveled oft upon its hooked side, so that as the cover or case is lowered the said bevel may strike against the striker-plate to push the bolt back to enable the said bolt to pass through the slot of the said plate.
- the hooked end of the bolt C is held forward to catch upon the striker-plate by a spring, D, attached to the bar B, and which rests against the edge of the inner end of the bolt 0 that projects be yond the pivot a of said bolt.
- E is the keypivot, which is attached to the inner end of the bar B.
- the edge of the projecting inner end of the bolt 0 is recessed to form a suitable place for the bit of the key to strike against to unlock the bolt, the said bolt looking itself as the case or cover of the machine is shut down.
- a cam, F having a square hole formed in its center is pivoted to the inner end of the bar B, the face of which fits and rests against the recessed edge of the inner end of the bolt 0, so that the said bolt may be operated by turning the said cam F.
Description
UNITED STATES PATENT OFFICE.
EDWARD L. GAYLORD, OF BRIDGEPORT, CONNECTICUT.
IMPROVEMENT IN LOCKS FOR SEWING-MACHINES Specification forming part of Letters Patent No. 135,270, dated January 28, 1873.
To all whom it may concern:
Be it known that I, EDWARD L. GAYLORD, of Bridgeport, in the county of Fairfield and State of Connecticut, have invented a new and useful Improvement in Sewing-Machine Look, of which the followingis a specification:
Figure 1 is a detail view of the inner side of my improved lock. Fig. 2 is a detail section of the same taken through the line 00 m, Fig. 1. Fig. 3 is a detail view, illustrating a modification of the same. Fig. 4 is a detail section of the same taken through the line y y, Fig. 3.
Similar letters of reference indicate correspondin g parts.
My invention has for its object to furnish an improved sewing-machine lock which shall be so constructed as to require no second hole in the striker-plate to receive a steady-pin to prevent the case from sliding upon the table, and which shall at the same time be simple in construction and effective in operation; and it consists in the combina-tion of a fixed projectingplate or steady-pin with the lockinghook of the look, as and for the purpose hereinafter set forth.
A is the plate of the lock, which is made with an inwardly-projecting flange upon its lower edge to overlap the lower edge of the case, box, or cover of the machine. B is the steady pin or bar, which is secured to the plate A by the rivet a. The lower end of pin or bar B passes through the bolt-slot in the flange of the plate A, and is made of a breadth equal to the length of the said slot, so that the said bar can have no movement. The lower projecting end of the bar B is beveled off so that it can readily pass into the slot in the striker-plate attached to the table. 0 is the hook-bolt, which is pivoted to the steady-bar B and to the plate A by the rivet a that secures the said bar to the said plate. The bolt G has a hook formed upon its lower end to hook upon the striker-plate and thus lock the machine. The part of the bolt 0 that passes through the slot in the flange of the plate A is made narrower than the length of the said slot, so that the said bolt may have a lateral movement. The lower end of the bolt 0 is beveled oft upon its hooked side, so that as the cover or case is lowered the said bevel may strike against the striker-plate to push the bolt back to enable the said bolt to pass through the slot of the said plate. The hooked end of the bolt C is held forward to catch upon the striker-plate by a spring, D, attached to the bar B, and which rests against the edge of the inner end of the bolt 0 that projects be yond the pivot a of said bolt. E is the keypivot, which is attached to the inner end of the bar B. The edge of the projecting inner end of the bolt 0 is recessed to form a suitable place for the bit of the key to strike against to unlock the bolt, the said bolt looking itself as the case or cover of the machine is shut down.
When it is desired to operate the bolt 0 with a square key a cam, F, having a square hole formed in its center is pivoted to the inner end of the bar B, the face of which fits and rests against the recessed edge of the inner end of the bolt 0, so that the said bolt may be operated by turning the said cam F.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The fixed plate or bar B beveled at its lower end, which projects through the case A of the lock, in combination with the hook-bolt C pivoted at a, and the spring D, all arranged to operate as specified.
EDWARD L. GAYLORD.
Witnesses JAMES T. GRAHAM, T. B. MosHER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US135270A true US135270A (en) | 1873-01-28 |
Family
ID=2204686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US135270D Expired - Lifetime US135270A (en) | Improvement in locks for sewing-machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US135270A (en) |
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0
- US US135270D patent/US135270A/en not_active Expired - Lifetime
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