GB191001564A - Adjustable Protractor Set Square. - Google Patents

Adjustable Protractor Set Square.

Info

Publication number
GB191001564A
GB191001564A GB191001564DA GB191001564A GB 191001564 A GB191001564 A GB 191001564A GB 191001564D A GB191001564D A GB 191001564DA GB 191001564 A GB191001564 A GB 191001564A
Authority
GB
United Kingdom
Prior art keywords
square
set square
adjustable protractor
arm
adjustable
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
Harold Schorah
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 GB191001564A publication Critical patent/GB191001564A/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
    • B43L7/027—Plural non-adjustable straightedges fixed at right angles
    • B43L7/0275—Triangles
    • 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
    • B43L13/001—Mathematical drawing instruments

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

1564. Schorah, H. Jan. 21. Protractors; squares. - An adjustable protractor is combined with a set-square A of five sides. The arm B<2> does not project beyond the edge of the set-square A, and its under surface is always in the same plane as the under surface of the set-square. The arm B<2> may be tongued at the end, a recess in the set-square receiving the tongue, or it may have a clamping-bolt at its end running in a slot cut out of the set-square.
GB191001564D 1910-01-21 1910-01-21 Adjustable Protractor Set Square. Expired GB191001564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191001564T 1910-01-21

Publications (1)

Publication Number Publication Date
GB191001564A true GB191001564A (en) 1910-12-15

Family

ID=32559807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191001564D Expired GB191001564A (en) 1910-01-21 1910-01-21 Adjustable Protractor Set Square.

Country Status (1)

Country Link
GB (1) GB191001564A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470458A (en) * 1946-06-07 1949-05-17 Francis A Barr Protractor
US2508838A (en) * 1946-05-07 1950-05-23 James T Roberts Solar azimuth protractor
US2532329A (en) * 1947-03-28 1950-12-05 Owen D Premo Angle layout and checking instrument
US2579857A (en) * 1946-09-09 1951-12-25 Owen D Premo Drafting instrument

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508838A (en) * 1946-05-07 1950-05-23 James T Roberts Solar azimuth protractor
US2470458A (en) * 1946-06-07 1949-05-17 Francis A Barr Protractor
US2579857A (en) * 1946-09-09 1951-12-25 Owen D Premo Drafting instrument
US2532329A (en) * 1947-03-28 1950-12-05 Owen D Premo Angle layout and checking instrument

Similar Documents

Publication Publication Date Title
GB191001564A (en) Adjustable Protractor Set Square.
US2924010A (en) Cutting instrument with angularly
US903648A (en) T-square.
US2368344A (en) Draftsman&#39;s triangle
US1416652A (en) Device
GB273091A (en) Improvements in pocket knives, combination tools, and similar articles
GB208211A (en) Improvements in apparatus for making perspective drawings
US602130A (en) Carpenter s tool
GB190921402A (en) Improvements in Tee-squares.
US293497A (en) Rule and try-square
GB191220050A (en) Improvements in &#34;Draftsmen&#39;s Triangles.&#34;
GB190919100A (en) An Improved T-square.
GB150464A (en) An improved ruler and paper knife
GB191127880A (en) Improvements in and relating to Rulers.
GB191127804A (en) Improvements in or relating to Combination Tools.
GB247768A (en) Improvements relating to knives for cutting bread, or for other uses
GB191303920A (en) An Improved Combination Drawing Tool or Instrument.
GB191224725A (en) Improvement in Screws.
USD168601S (en) Corner table os the like
GB104839A (en) Improvements in and relating to Measuring Devices.
GB191313790A (en) Improvements in Implements for Tapping India Rubber and other Latex Yielding Trees.
USD40968S (en) Design for a badge
GB191318256A (en) An Improved Device for Measuring Distances and Angles.
GB111579A (en) Improvements in Instruments for Geometrical Drawing.
GB190827844A (en) An Improved Sharpener for Knives and the like.