GB226435A - Improvements in and relating to drawing instruments - Google Patents

Improvements in and relating to drawing instruments

Info

Publication number
GB226435A
GB226435A GB1260924A GB1260924A GB226435A GB 226435 A GB226435 A GB 226435A GB 1260924 A GB1260924 A GB 1260924A GB 1260924 A GB1260924 A GB 1260924A GB 226435 A GB226435 A GB 226435A
Authority
GB
United Kingdom
Prior art keywords
leg
graduated
instrument
compass
relating
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
GB1260924A
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.)
AUGUST OTTO HEINRICH ROSENFELD
Original Assignee
AUGUST OTTO HEINRICH ROSENFELD
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 AUGUST OTTO HEINRICH ROSENFELD filed Critical AUGUST OTTO HEINRICH ROSENFELD
Priority to GB1260924A priority Critical patent/GB226435A/en
Publication of GB226435A publication Critical patent/GB226435A/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

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

226,435. Rosenfeldt, A. O. H. May 22, 1924. Compasses; protractors.-- A combination drawing or mathematical instrument for the use of geometricians, technicians, students and soldiers comprises a graduated bar a cf half # - section within which slides a beam b carrying a compass leg c pivoted at 3 to a projection from the beam b and a second compass leg d slidable longitudinally with reference to the beam and adapted to be held in different positions by screws 2. The leg c is graduated as a measure cf length and a recess l within which the end of the leg c works is graduated as a protractor, graduations on the leg c itself serving to indicate small angles. A spirit level f, a magnetic compass or other small instrument may be combined with the instrument.
GB1260924A 1924-05-22 1924-05-22 Improvements in and relating to drawing instruments Expired GB226435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1260924A GB226435A (en) 1924-05-22 1924-05-22 Improvements in and relating to drawing instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1260924A GB226435A (en) 1924-05-22 1924-05-22 Improvements in and relating to drawing instruments

Publications (1)

Publication Number Publication Date
GB226435A true GB226435A (en) 1924-12-24

Family

ID=10007784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1260924A Expired GB226435A (en) 1924-05-22 1924-05-22 Improvements in and relating to drawing instruments

Country Status (1)

Country Link
GB (1) GB226435A (en)

Similar Documents

Publication Publication Date Title
GB226435A (en) Improvements in and relating to drawing instruments
US1745188A (en) Drawing instrument
GB591691A (en) Improvements in or relating to adjustable and fixed set squares
GB118593A (en) Instrument for Transferring Lineal Measurements.
GB267740A (en) Improvements in combination drawing instruments
GB191225969A (en) An Improved Implement particularly adapted for use as a Paper-cutter, Scale, Edge-rule, and for other purposes.
US2142765A (en) Drafting tool
GB317903A (en) Improvements in line drawing or ruling appliances
GB326720A (en) An improved navigational plotting instrument
US1436471A (en) Method of combining protractor and beam compass in one drafting tool
GB352254A (en) Improvements in or relating to field instruments for measuring angles
GB674961A (en) Improvements in or relating to measuring instruments and the like
GB342893A (en) Instrument for drawing curves especially conic sections
GB260068A (en) Improvements in drawing instruments
GB263495A (en) Improvements in or relating to distance or map measuring instruments
GB351728A (en) Improvements in mathematical instruments
GB561817A (en) Improvements in compasses and the like
GB191022937A (en) Improvements in and relating to Measuring Instruments.
GB176608A (en) Instruments for ascertaining the compass course of a ship
GB298323A (en) An adjustable rule or level for builders' and like work
GB155379A (en) Improvements in calculating instruments
GB319161A (en) Improvements in protractors
GB342193A (en) A combination drafting appliance for use with blackboards
GB392312A (en) Improvements in or relating to drawing instruments
GB155304A (en) Navigator's instrument