GB494658A - Improvements in or relating to the protractor heads of drawing machines - Google Patents

Improvements in or relating to the protractor heads of drawing machines

Info

Publication number
GB494658A
GB494658A GB12985/38A GB1298538A GB494658A GB 494658 A GB494658 A GB 494658A GB 12985/38 A GB12985/38 A GB 12985/38A GB 1298538 A GB1298538 A GB 1298538A GB 494658 A GB494658 A GB 494658A
Authority
GB
United Kingdom
Prior art keywords
disc
pin
ratchet
ring
bed
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
Application number
GB12985/38A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB494658A publication Critical patent/GB494658A/en
Expired legal-status Critical Current

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

  • Orthopedics, Nursing, And Contraception (AREA)
GB12985/38A 1937-05-03 1938-05-02 Improvements in or relating to the protractor heads of drawing machines Expired GB494658A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE494658X 1937-05-03

Publications (1)

Publication Number Publication Date
GB494658A true GB494658A (en) 1938-10-28

Family

ID=6544758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12985/38A Expired GB494658A (en) 1937-05-03 1938-05-02 Improvements in or relating to the protractor heads of drawing machines

Country Status (2)

Country Link
FR (1) FR837367A (enrdf_load_stackoverflow)
GB (1) GB494658A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551185A (en) * 1941-01-15 1951-05-01 Cellophane Sa Drawing machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611184A (en) * 1948-02-06 1952-09-23 Keuffel & Esser Co Drafting machine
US2644238A (en) * 1950-03-22 1953-07-07 Keuffel & Esser Co Drafting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551185A (en) * 1941-01-15 1951-05-01 Cellophane Sa Drawing machine

Also Published As

Publication number Publication date
FR837367A (enrdf_load_stackoverflow) 1939-02-08

Similar Documents

Publication Publication Date Title
GB408394A (en) Improvements in or relating to means for measuring or setting out angles
GB494658A (en) Improvements in or relating to the protractor heads of drawing machines
US2243778A (en) Glass cutter
US2588999A (en) Reed hat leather trimming machine
US2178516A (en) Lens marker
US1805740A (en) Drafting machine
US2381988A (en) Pressure indicator for hack saws
GB253093A (en) Improvements in machines for cutting fancy watch glasses
US2323649A (en) Marking device
GB498999A (en) Improvements in or relating to multiplying apparatus
GB511238A (en) A reading device for measuring scales in connection with machines for cutting paper,cardboard and the like
USRE22110E (en) Gear testing and recording machine
GB530806A (en) A revolving circular sheet cutting device
US2310608A (en) Colorimeter
GB211867A (en) Improvements in fruit peeling machines
GB512012A (en) Drafting machine
GB467806A (en) Improvements in hardness testing machines
GB765711A (en) Measuring instruments
GB477420A (en) Improvements in and relating to turning lathes for copying
SU44356A1 (ru) Прибор дл измерени переднего угла метчиков, разверток и т.п.
GB611973A (en) Drafting machine
GB432084A (en) Improvements in and relating to planimeters combined with drawing appliances
GB855824A (en) Improvements relating to machine tools
GB823213A (en) Device for adjusting machine tool tables
GB477308A (en) Improvements in or relating to temple mechanisms for looms