GB190527288A - An Improved Device for Facilitating Drawing Work. - Google Patents

An Improved Device for Facilitating Drawing Work.

Info

Publication number
GB190527288A
GB190527288A GB190527288DA GB190527288A GB 190527288 A GB190527288 A GB 190527288A GB 190527288D A GB190527288D A GB 190527288DA GB 190527288 A GB190527288 A GB 190527288A
Authority
GB
United Kingdom
Prior art keywords
arm
guiding
sliding
bar
ruler
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
Inventor
Bernhard Hunsemann
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
Application granted granted Critical
Publication of GB190527288A publication Critical patent/GB190527288A/en
Expired legal-status Critical Current

Links

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Drawing Aids And Blackboards (AREA)

Abstract

27,288. Hunsemann, B. Dec. 30. Parallel rulers; protractors; squares.-Relates to instruments for use in drawing, designed to replace the T -square and protractor. The guiding- bar a, b, which is adjustable in length, can be attached to the drawing-board or book by clips c, d. A sleeve h, sliding on the guiding- bar, carries an adjustable boss i to which a detachable ruler l is hinged. Sliding in a groove formed in the ruler l is a stock o, carrying a pivoted protracting arm s together with a graduated arc and pointer, and a spring catch is provided for fixing the arm in standard positions such as thirty degrees, forty-five degrees, &c. The arm may also be fixed in any position by the screwp.
GB190527288D 1905-12-30 1905-12-30 An Improved Device for Facilitating Drawing Work. Expired GB190527288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190527288T 1905-12-30

Publications (1)

Publication Number Publication Date
GB190527288A true GB190527288A (en) 1906-04-05

Family

ID=32202741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190527288D Expired GB190527288A (en) 1905-12-30 1905-12-30 An Improved Device for Facilitating Drawing Work.

Country Status (1)

Country Link
GB (1) GB190527288A (en)

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