GB191424134A - Improvements in Rulers. - Google Patents

Improvements in Rulers.

Info

Publication number
GB191424134A
GB191424134A GB191424134DA GB191424134A GB 191424134 A GB191424134 A GB 191424134A GB 191424134D A GB191424134D A GB 191424134DA GB 191424134 A GB191424134 A GB 191424134A
Authority
GB
United Kingdom
Prior art keywords
ruler
rulers
flat
graduated
segment
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
Charles Henry Hardingham
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 GB191424134A publication Critical patent/GB191424134A/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
    • B43L7/00—Straightedges
    • B43L7/005—Straightedges combined with other drawing aids

Abstract

24,134. Hardingham, C. H. Dec. 16. Protractors; rulers.-A device for drawing angles and plotting curves comprises a flat ruler e having at one end a graduated circular segment h provided with a flat top i and with a hole f in line with the top edge of the ruler e. The ruler is graduated. In a modification, both ruler and segment are plain and no flat top is provided.
GB191424134D 1914-12-16 1914-12-16 Improvements in Rulers. Expired GB191424134A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191424134T 1914-12-16

Publications (1)

Publication Number Publication Date
GB191424134A true GB191424134A (en) 1915-09-16

Family

ID=32673287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191424134D Expired GB191424134A (en) 1914-12-16 1914-12-16 Improvements in Rulers.

Country Status (1)

Country Link
GB (1) GB191424134A (en)

Similar Documents

Publication Publication Date Title
GB191424134A (en) Improvements in Rulers.
GB191225969A (en) An Improved Implement particularly adapted for use as a Paper-cutter, Scale, Edge-rule, and for other purposes.
GB191303920A (en) An Improved Combination Drawing Tool or Instrument.
US2152750A (en) Geometrical device
US843374A (en) Rolling parallel ruler and sliding scale.
GB109674A (en) Improved Course-finder Protractor.
GB191208415A (en) Improvements in Ruling and Drawing Devices.
US3367029A (en) Grading tool devices, especially adaptable for use in the garment industry
US1182638A (en) Engineer's plotter.
US1008934A (en) Drawing instrument.
GB190804575A (en) Combined Protractor and Parallel Ruler.
US1046365A (en) Protractor-triangle.
GB190919100A (en) An Improved T-square.
GB190822803A (en) Improvements in and relating to Parallel Rulers and Drawing Boards and the like.
US909686A (en) Protractor.
GB190507134A (en) An Improved Combination Apparatus applicable as a Level or Plumb-rule and for Measuring and Plotting Inclinations and Horizontal Angles.
US829137A (en) T and angle square.
GB102652A (en) A New or Improved Machine for Measuring Angles, Pitches, Lengths, and the like.
GB191212070A (en) Improvements in Squares or Instruments for Measuring Right Angles.
GB190923273A (en) A Device for Facilitating Object Drawing.
GB190408279A (en) A Combined Ruler and Protractor for Blackboard use.
GB111579A (en) Improvements in Instruments for Geometrical Drawing.
GB326720A (en) An improved navigational plotting instrument
US435395A (en) Charles a
GB190526399A (en) A New or Improved Instrument for Military Sketching.