GB200439A - Improvements in perforators for letter files - Google Patents
Improvements in perforators for letter filesInfo
- Publication number
- GB200439A GB200439A GB3192822A GB3192822A GB200439A GB 200439 A GB200439 A GB 200439A GB 3192822 A GB3192822 A GB 3192822A GB 3192822 A GB3192822 A GB 3192822A GB 200439 A GB200439 A GB 200439A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crossbar
- sleeve
- waldschmidt
- punches
- hole
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/04—Perforating by punching, e.g. with relatively-reciprocating punch and bed with selectively-operable punches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/32—Hand-held perforating or punching apparatus, e.g. awls
- B26F1/36—Punching or perforating pliers
Abstract
200,439. Waldschmidt, R., Waldschmidt, R., and Waldschmidt, H. Nov. 22, 1922. Selective perforating machines. - In an apparatus for perforating letters for filing, with two holes at varying distances apart, a handle f actuates, through traction links e, e<1>, a crossbar d with holes i, i<1> for the free passage of punches b, c and a stopped hole for a punch a. A sleeve d' journaled in the links is slidable over the crossbar and carries a hole h and slots g so arranged that when the hole h registers with either of the punches b, c that punch is rendered inoperative. In a modification, the crossbar and the sleeve are interchanged and the crossbar made movable. In further modifications, the sliding tube comprises a short sleeve extending the distance between the punches b, c or the sleeve instead of sliding axially may have a rotary movement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3192822A GB200439A (en) | 1922-11-22 | 1922-11-22 | Improvements in perforators for letter files |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3192822A GB200439A (en) | 1922-11-22 | 1922-11-22 | Improvements in perforators for letter files |
Publications (1)
Publication Number | Publication Date |
---|---|
GB200439A true GB200439A (en) | 1923-07-12 |
Family
ID=10330475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3192822A Expired GB200439A (en) | 1922-11-22 | 1922-11-22 | Improvements in perforators for letter files |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB200439A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2838112A (en) * | 1954-12-20 | 1958-06-10 | Waldes Kohinoor Inc | Punch means useful in slide fastener manufacture |
US4569267A (en) * | 1982-11-06 | 1986-02-11 | Trumpf Gmbh & Co. | Multitool punch mechanism |
-
1922
- 1922-11-22 GB GB3192822A patent/GB200439A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2838112A (en) * | 1954-12-20 | 1958-06-10 | Waldes Kohinoor Inc | Punch means useful in slide fastener manufacture |
US4569267A (en) * | 1982-11-06 | 1986-02-11 | Trumpf Gmbh & Co. | Multitool punch mechanism |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB200439A (en) | Improvements in perforators for letter files | |
GB1150785A (en) | A Drilling Machine for Office Use | |
GB340174A (en) | Improvements in paper perforators | |
US1827002A (en) | Perforating device | |
GB369747A (en) | Improvements in punching machines for punching square holes in the flat bars of stair railings and the like which are raked | |
GB209498A (en) | Expanding mandril and reeling bar | |
GB259499A (en) | Improved apparatus for a simultaneous punching and cutting of pocket-knife springs | |
GB674979A (en) | Improvements in or relating to filing devices for paper and the like | |
SU12318A1 (en) | Paper tape perforation machine for decoders | |
US1732032A (en) | Key machine | |
GB209002A (en) | Improvements in paper perforators of the hand lever and punch type | |
US944612A (en) | Perforating apparatus. | |
US1393243A (en) | Perforator | |
GB227733A (en) | Improvements in perforators | |
Langer | Letter from Senator Langer to Martin Cross Acknowledging Recent Note from Cross, February 14, 1946 | |
GB279098A (en) | Improvements in or relating to apparatus for perforating sheet material | |
US1453235A (en) | Check perforator | |
GB720943A (en) | Document perforator | |
US1189984A (en) | Tool for slotting a well-casing. | |
GB242548A (en) | Renewable cutter rock drill steel | |
GB260995A (en) | Improvements in wood perforating or punching appliances | |
GB953846A (en) | Improvements in hand perforating machines for record cards | |
GB191408656A (en) | Improvements in and relating to Keyboard Tape Perforating Apparatus. | |
GB836071A (en) | Improvements in or relating to perforating apparatus | |
GB641384A (en) | Improvements in or connected with perforating machines |