US259497A - Cutter for leather-whitening machines - Google Patents
Cutter for leather-whitening machines Download PDFInfo
- Publication number
- US259497A US259497A US259497DA US259497A US 259497 A US259497 A US 259497A US 259497D A US259497D A US 259497DA US 259497 A US259497 A US 259497A
- Authority
- US
- United States
- Prior art keywords
- leather
- cutter
- cutters
- whitening
- cylinder
- 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 8
- 239000002184 metal Substances 0.000 description 8
- 230000000875 corresponding Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/02—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather
Definitions
- the invention consists in the combination, with a cylinder of a length slightly more than its diameter and provided with V shaped grooves, of V-shaped cutters provided with spiral wings and secured in the grooves of the cylinder by strips of soft metal, as hereinafter fully described.
- Figure l is a transverse section of a cutterhead provided with theimproved knives.
- Fig. 2 is an edge view, and Fig.3 a side view, of one knife or cutter; and Fig. 4. is a plan view, showing the relative position and arran gemcnt of the cutters on the head.
- A is the cutter-head, which is a cylinder of a length slightly more than its diameter
- B are the cutters, set in grooves formed in the head, and held securely by strips of soft metal (shown at a) calked or forcedinto the grooves after the cutters are inesrted.
- the cutters B are thin blades of metal bent in V form, and with each wing 11 formed as a spiral on a pitch equal, or nearly so, to the length of the cylinder.
- the points or angles of the double cutters are at the mid-length of 3 5 the head A, and the wings are of a length to extend to the ends of the head at each side.
- the cutters act on the leather with a shearing cut from the center line outward in both directions, the fiber being thereby cut in two directions, and the operation is similar to slicker-whitening as done by hand.
- the strain or draft on the leather is in both directions, the wings at one side acting against those at the other side. There is no movement of the leather to either side, and it is retained on the bed-plate. Further, the cutters will not crease or plait the leather, and the liability of holes being cut is thus avoided.
- the cutters constructed as described, are self-bracing and not liable to bend or to break. Having thus described myinvention, I claim asnew and desireto secure byLettersPatent The combination, with the cylinder A, of a length slightly more than its diameter and provided with V-shaped grooves, of the V-shaped cutters B, provided with spiral wings b, and secured in the grooves of the cylinder by the strips of soft metal a, substantially as herein shown and described, and for the purpose set forth.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Sewing Machines And Sewing (AREA)
- Treatment Of Fiber Materials (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
' (No Model.)
J. B. CLEMENT. CUTTER FOR LEATHER WHITENING MAGHINBS.
Patented June 13, 1882.
INVENTOR wrrnnssr-zs:
Y MW ATTORNEYS.
JOHN E. CLEMENT, OF PEABODY, MASSACHUSETTS.
CUTTER FOR LEATHER-WHITENING MACHINES.
SPECIFICATION forming part of Letters Patent No. 259,497, dated June 13, 1882.
Application filed February 27, 1882. (No model.)
To all whom it may concern Be it known that I, JOHN E. CLEMENT, of Peabody, Essex county, Massachusetts, have invented a new and Improved Gutter for Leather-Whitening Machines, of which the following is a full, clear, and exact description. 1
The invention consists in the combination, with a cylinder of a length slightly more than its diameter and provided with V shaped grooves, of V-shaped cutters provided with spiral wings and secured in the grooves of the cylinder by strips of soft metal, as hereinafter fully described.
Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.
Figure l is a transverse section of a cutterhead provided with theimproved knives. Fig. 2 is an edge view, and Fig.3 a side view, of one knife or cutter; and Fig. 4. is a plan view, showing the relative position and arran gemcnt of the cutters on the head.
A is the cutter-head, which is a cylinder of a length slightly more than its diameter, and B are the cutters, set in grooves formed in the head, and held securely by strips of soft metal (shown at a) calked or forcedinto the grooves after the cutters are inesrted.
The cutters B are thin blades of metal bent in V form, and with each wing 11 formed as a spiral on a pitch equal, or nearly so, to the length of the cylinder. The points or angles of the double cutters are at the mid-length of 3 5 the head A, and the wings are of a length to extend to the ends of the head at each side.
The cutters, formed and arranged as described, act on the leather with a shearing cut from the center line outward in both directions, the fiber being thereby cut in two directions, and the operation is similar to slicker-whitening as done by hand. The strain or draft on the leather is in both directions, the wings at one side acting against those at the other side. There is no movement of the leather to either side, and it is retained on the bed-plate. Further, the cutters will not crease or plait the leather, and the liability of holes being cut is thus avoided.
The cutters, constructed as described, are self-bracing and not liable to bend or to break. Having thus described myinvention, I claim asnew and desireto secure byLettersPatent The combination, with the cylinder A, of a length slightly more than its diameter and provided with V-shaped grooves, of the V-shaped cutters B, provided with spiral wings b, and secured in the grooves of the cylinder by the strips of soft metal a, substantially as herein shown and described, and for the purpose set forth.
JOHN EDWARD CLEMENT. Witnesses:
Osonn B. HURLBUT, J OHN AUGUSTUS Enos.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US259497A true US259497A (en) | 1882-06-13 |
Family
ID=2328777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US259497D Expired - Lifetime US259497A (en) | Cutter for leather-whitening machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US259497A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030076299A1 (en) * | 2000-07-13 | 2003-04-24 | Philips Electronics North America Corporation | Pointing direction calibration in video conferencing and other camera-based system applications |
| US20090186540A1 (en) * | 2004-12-01 | 2009-07-23 | Pole Iii Robert C | Rescue mat |
-
0
- US US259497D patent/US259497A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030076299A1 (en) * | 2000-07-13 | 2003-04-24 | Philips Electronics North America Corporation | Pointing direction calibration in video conferencing and other camera-based system applications |
| US20090186540A1 (en) * | 2004-12-01 | 2009-07-23 | Pole Iii Robert C | Rescue mat |
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