US566831A - Nipper-jaw for lasting-machines - Google Patents
Nipper-jaw for lasting-machines Download PDFInfo
- Publication number
- US566831A US566831A US566831DA US566831A US 566831 A US566831 A US 566831A US 566831D A US566831D A US 566831DA US 566831 A US566831 A US 566831A
- Authority
- US
- United States
- Prior art keywords
- nipper
- jaw
- lever
- spring
- lasting
- 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 10
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 210000003141 Lower Extremity Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002045 lasting Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D21/00—Lasting machines
- A43D21/12—Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
- A43D21/125—Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last with a plurality of pincers
Definitions
- My invention is a nipper-jaw for lastingmachines in which the spring-pressure, by means of which the adjustability of the nippers to difierent thicknesses of stock is obtained, is provided by compressing a spring and not by stretching a spring, as is the case in nippers heretofore known, as, for example, in patent to Dalpe, No. 536,780, dated April 2, 1895, the result beinga nipper much more efficient and durable than any other nipper.
- A is the fixed member of the nipper-jaw, having the guides at and projections Ct fast to it, one end of the fixed member forming one of the jaws b of the nipper, which acts, in conjunction with the other jaw 1), upon the moving member B.
- the moving member B slides in the guides and is connected to the lever E by links D.
- the lever E is slotted at its lower extremity and carries a spiral spring F about its lower part, which spring presses at its upper end against the pin cl, which connects links 1) to lever E, and at its lower end against the projections a.
- the slotted end of lever E works upon pin a between the projections a.
- ⁇ Vhat I claim is- In combination, jaw members A and B; slotted lever E carrying a spring F and fulcrumed upon member A 3 spring F and links D connecting lever E and member B; all organized and operating substantially as described.
Description
(No Model.)
G.'A. WILLARD.
NIPPER JAW FOR LASTING'MAGHINBS. No. 566,831. Patented Sept. 1., 1896 WITNESSES: l/VVE/VTQH W @MWM 5 I BY ATTORNEYS.
UNITED STATES ATENT GEORGE A. W'ILLARD, OF PETERBOROUGH, NEW HAMPSHIRE, ASSIGNOR TO THE CHASE LASTING MACHINE COMPANY, OF BOSTON, MASSACHUSETTS.
NlPPER-JAW FOR LASTlNG-MACHINES.
SPECIFICATION forming part of Letters Patent No. 566,831, dated September 1, 3.896.
Application filed February 21, 1896. Serial No. 580,151. (No model.)
To all whom it may concern.-
Be it known that I, GEORGE A. WILLARD, of Peterborough, in the county of Hillsborough and State of New Hampshire, have invent-ed an Improved N ipper-J aw for Lasting- Machines, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation. Fig. 2 is a central longitudinal section. Fig. 3 is a plan view of my nipper-jaw, and Fig. at is a sectional elevation of a modification.
My invention is a nipper-jaw for lastingmachines in which the spring-pressure, by means of which the adjustability of the nippers to difierent thicknesses of stock is obtained, is provided by compressing a spring and not by stretching a spring, as is the case in nippers heretofore known, as, for example, in patent to Dalpe, No. 536,780, dated April 2, 1895, the result beinga nipper much more efficient and durable than any other nipper.
In the drawings, A is the fixed member of the nipper-jaw, having the guides at and projections Ct fast to it, one end of the fixed member forming one of the jaws b of the nipper, which acts, in conjunction with the other jaw 1), upon the moving member B. The moving member B slides in the guides and is connected to the lever E by links D. The lever E is slotted at its lower extremity and carries a spiral spring F about its lower part, which spring presses at its upper end against the pin cl, which connects links 1) to lever E, and at its lower end against the projections a. The slotted end of lever E works upon pin a between the projections a.
The operation is as follows: When the nipper is ready to take hold of the stock, (see Fig. 1,) the spring F tends to force the lever E away from the projections a until the end of the slot comes in contact with the pin a When the nipper is closed upon the stock, (see Fig. 2,) the moving member B being prevented by the stock between the jaws Z) I) frombeing drawn inward its full length, the lever is compelled to yield against the resistance of spring F, the yield of lever E being rendered possible by the slot in the lower end of lever E.
In the modification shown in Fig. 4 the lower end of the lever E works upon the pin 0. the middle portion of lever E is slotted, and pin cl, to which the ends of links D are secured, Works in the slot. Spring F surrounds the lower portion of lever E between pin 61 and projections a. It will be obvious that byinserting stock between the jaws b l) the links D, which are fast to moving member B, are in effect shortened and the pin 01 moved in the slot against the resistance of spring F.
\Vhat I claim is- In combination, jaw members A and B; slotted lever E carrying a spring F and fulcrumed upon member A 3 spring F and links D connecting lever E and member B; all organized and operating substantially as described.
GEORGE A. XVILLARD.
Witnesses:
O. L. DIXON, A. A. HARPER.
Publications (1)
Publication Number | Publication Date |
---|---|
US566831A true US566831A (en) | 1896-09-01 |
Family
ID=2635541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US566831D Expired - Lifetime US566831A (en) | Nipper-jaw for lasting-machines |
Country Status (1)
Country | Link |
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US (1) | US566831A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2995794A (en) * | 1959-07-20 | 1961-08-15 | Hacking Vernon Edward | Toggle clamp |
-
0
- US US566831D patent/US566831A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2995794A (en) * | 1959-07-20 | 1961-08-15 | Hacking Vernon Edward | Toggle clamp |
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