GB1193478A - Improvements in or relating to a Draughting Machine having a Ruler Indexing Mechanism - Google Patents
Improvements in or relating to a Draughting Machine having a Ruler Indexing MechanismInfo
- Publication number
- GB1193478A GB1193478A GB5446267A GB5446267A GB1193478A GB 1193478 A GB1193478 A GB 1193478A GB 5446267 A GB5446267 A GB 5446267A GB 5446267 A GB5446267 A GB 5446267A GB 1193478 A GB1193478 A GB 1193478A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slider
- trigger
- pawl
- thumb pressure
- plate
- 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
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/02—Draughting machines or drawing devices for keeping parallelism
- B43L13/08—Protractor heads
Landscapes
- Invalid Beds And Related Equipment (AREA)
- Toys (AREA)
- Mechanical Control Devices (AREA)
Abstract
1,193,478. Draughting machines. C. REICH and H. KUCHEJDA [trading as FRANZ SCHMIDT & HAENSCH]. Nov. 30, 1967 [Dec.1, 1966], No. 54462/67. Heading G1X. A draughting machine has a ruler indexing mechanism comprising a slider c on which a trigger h is pivotally mounted, the slider being movable in a channel in a bed b and the trigger having a position in which it is fixable to the bed. Lugs d of the slider support an axle e of the trigger and an arm p of a member l passes through holes q and # in a cover plate a and the slider c respectively. The other arm m of the member l is located in a pivoted pawl o which engages the teeth of a plate k. A knob t covers the mechanism and enables rulers associated with the device to be set at given angles. Thumb pressure on the trigger above the axle e causes an arm of the trigger carrying a lug g to be pressed against the slider, thus moving the slider inwardly and lifting the pawl out of engagement with the plate k so that the knob can be turned. On releasing the thumb pressure, a spring s returns the slider to its original position and the pawl relocks the knob. With thumb pressure applied below the axle e, the slider disengages the pawl from the plate k but the lug g enters a hole i in the bed so that the pawl remains in its disengaged position on releasing the thumb pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESC039894 | 1966-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1193478A true GB1193478A (en) | 1970-06-03 |
Family
ID=7435395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5446267A Expired GB1193478A (en) | 1966-12-01 | 1967-11-30 | Improvements in or relating to a Draughting Machine having a Ruler Indexing Mechanism |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH461986A (en) |
DE (1) | DE1511477B2 (en) |
GB (1) | GB1193478A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2105534A5 (en) * | 1970-09-10 | 1972-04-28 | Alpia Sa | |
DE2854466C2 (en) * | 1977-12-21 | 1982-12-09 | Asahi Seimitsu K.K., Tokyo | Drawing head for drawing machines |
FR2519586B1 (en) * | 1982-01-11 | 1988-03-18 | Alpia Sa | DEVICE FOR CONTROLLING THE ANGULAR INDEXING MECHANISM OF THE RULES OF A DRAWING APPARATUS HEAD |
DE8515482U1 (en) * | 1985-05-25 | 1986-06-26 | Fa. J.S. Staedtler, 8500 Nürnberg | Simple drawing head |
-
1966
- 1966-12-01 DE DE19661511477 patent/DE1511477B2/en active Pending
-
1967
- 1967-11-30 GB GB5446267A patent/GB1193478A/en not_active Expired
- 1967-12-01 CH CH1693467A patent/CH461986A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH461986A (en) | 1968-08-31 |
DE1511477A1 (en) | 1969-09-11 |
DE1511477B2 (en) | 1973-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |