GB667731A - Improvements in or relating to machines for cutting sheet material - Google Patents
Improvements in or relating to machines for cutting sheet materialInfo
- Publication number
- GB667731A GB667731A GB7551/50A GB755150A GB667731A GB 667731 A GB667731 A GB 667731A GB 7551/50 A GB7551/50 A GB 7551/50A GB 755150 A GB755150 A GB 755150A GB 667731 A GB667731 A GB 667731A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plunger
- switch
- march
- arm
- hand
- 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
Links
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
- C14B5/00—Clicking, perforating, or cutting leather
-
- 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
- C14B2700/00—Mechanical treatment or processing of skins, hides or leather in general; Pelt-shearing machines; Making driving belts; Machines for splitting intestines
- C14B2700/11—Machines or apparatus for cutting or milling leather or hides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Tumbler Switches (AREA)
Abstract
667,731. Retractive switches. BRITISH UNITED SHOE MACHINERY CO., Ltd. 'March 27, 1950. [March 29, 1949] No. 7551/50. Class 38 (v). [Also in Group VIII] In order to initiate the power operation of a cutting machine (see Group VIII), two electric switches which are arranged in spaced relation on the swinging press-arm 16 of the machine must be closed simultaneously by the use of both hands of the operator. One switch 314 is of push-button type and controlled by a hand grip 322 on a lever 316 pivoted in a recess 320 in the handle 22 by means of which the arm 16 is swung into and out of operative position. The other switch comprises a horizontal plunger 326 which has a hand knob 330 at each end and a central collar 336 slidable with the plunger in a fixed sleeve 338. Two frustoconical members 340 are loosely mounted on the plunger on opposite sides of the sleeve 338 and are forced against the latter by springs 342. The members 340 normally lie adjacent to leaf springs 344 co-operating with switch push buttons 346, and pressure on either of the hand knobs 330 causes outward movement of the member 340 at the opposite end of the plunger and closure of the corresponding switch.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US667731XA | 1949-03-29 | 1949-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB667731A true GB667731A (en) | 1952-03-05 |
Family
ID=22071592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7551/50A Expired GB667731A (en) | 1949-03-29 | 1950-03-27 | Improvements in or relating to machines for cutting sheet material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB667731A (en) |
-
1950
- 1950-03-27 GB GB7551/50A patent/GB667731A/en not_active Expired
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