US117304A - Improvement in crimping-clamps - Google Patents
Improvement in crimping-clamps Download PDFInfo
- Publication number
- US117304A US117304A US117304DA US117304A US 117304 A US117304 A US 117304A US 117304D A US117304D A US 117304DA US 117304 A US117304 A US 117304A
- Authority
- US
- United States
- Prior art keywords
- crimping
- clamp
- improvement
- clamps
- fork
- 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
- 239000010985 leather Substances 0.000 description 4
- 238000002788 crimping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D3/00—Lasts
- A43D3/14—Stretching or spreading lasts; Boot-trees; Fillers; Devices for maintaining the shape of the shoe
- A43D3/1416—Boot-trees
Definitions
- This invention is a device for use in making boots, and is intended to facilitate the process known among shoemakers as crimping.
- Figure l is a side view.
- Figa? is a view at right angles to the View in Fig. l.
- a indicates a metal fork, which forms the main body of the clamp.
- b is the hand-screw, which serves to strain the leather after the clamp is applied.
- o c are springs fastened at d l to the outside of the fork a, running down to the ends of the fork, and there turning a right angle inward, formin g teeth o o', which bite down onto the leather When the springs are compressed, Which is done by means of the thumb-nuts e e running on screw-pins ff running through the springs into the fork.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
UNITED `JOHN KNSTLER, OF COLLINSVILLE, CONNECTICUT.
IMPROVEMENT IN CRIMPING-CLA'MPS.
Specification forming part of Letters Patent No. 117,304, dated July 25, 1871.
To all whom fit may concern:
Be it known that I, J oHN KUNSTLER, of Gollinsville, in the eounty of Hartford and State of Connecticut, have invented an Improved Crimp ing-Clamlnof which the following' is a speciication:
This invention is a device for use in making boots, and is intended to facilitate the process known among shoemakers as crimping.
Figure l is a side view. Figa? is a view at right angles to the View in Fig. l.
a indicates a metal fork, which forms the main body of the clamp. b is the hand-screw, which serves to strain the leather after the clamp is applied. o c are springs fastened at d l to the outside of the fork a, running down to the ends of the fork, and there turning a right angle inward, formin g teeth o o', which bite down onto the leather When the springs are compressed, Which is done by means of the thumb-nuts e e running on screw-pins ff running through the springs into the fork.
I am aware that a clamp very much like this has been heretofore invented, to Wit, the clamp shown in patent No. 46,427, dated February 14,
1865; but it is not intended herein to claim anything which might be properly claimed on that clamp, or in anywise interfere With that clamp 5 but my clamp has most important advantages over that, in that, 1st, it is simpler and easier and cheaper to make. 2d, to catch hold of the leather with the clamp shown in said patent it has to be raised oit' the block, and is left in that position When the crimping is finished, which is a disadvantage. The edges are also drawn over raised edges or corners, which must inevitablyT tend to crack and split the leather if much strain is put upon it. Hy invention, obviously, has none of these defects.
I claim as my invention- A crimping-clamp, composed of the fork a., hand-screw b, springs o c, forming teeth c' o over the ends of the fork, and compressed by thumbnuts e e on the screw-pins ff, the Whole arranged, constructed, and operated substantially as and for the purposes set forth.
JOHN KUN STLER.
Witnesses:
A. L. THAYER, O. F. PERRY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US117304A true US117304A (en) | 1871-07-25 |
Family
ID=2186761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US117304D Expired - Lifetime US117304A (en) | Improvement in crimping-clamps |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US117304A (en) |
-
0
- US US117304D patent/US117304A/en not_active Expired - Lifetime
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