GB191127880A - Improvements in and relating to Rulers. - Google Patents

Improvements in and relating to Rulers.

Info

Publication number
GB191127880A
GB191127880A GB191127880DA GB191127880A GB 191127880 A GB191127880 A GB 191127880A GB 191127880D A GB191127880D A GB 191127880DA GB 191127880 A GB191127880 A GB 191127880A
Authority
GB
United Kingdom
Prior art keywords
ruler
rulers
guard
relating
caldwell
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
William Addison Caldwell
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 GB191127880A publication Critical patent/GB191127880A/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

Abstract

27,880. Caldwell, W. A. Dec. 12. Rulers.-To prevent the inking of a ruler, a guard 6 is slidably mounted over the graduated surface at the forward edge of the ruler and is provided with flanges 7, 8 received respectively in a kerf 3 on the upper side of the ruler and a recess 5 in the under side of the same. The guard is provided with prongs 9 which are adapted to be engaged by the point of a pen.
GB191127880D 1911-12-12 1911-12-12 Improvements in and relating to Rulers. Expired GB191127880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191127880T 1911-12-12

Publications (1)

Publication Number Publication Date
GB191127880A true GB191127880A (en) 1912-06-06

Family

ID=32366336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191127880D Expired GB191127880A (en) 1911-12-12 1911-12-12 Improvements in and relating to Rulers.

Country Status (3)

Country Link
DE (1) DE253830C (en)
FR (1) FR437880A (en)
GB (1) GB191127880A (en)

Also Published As

Publication number Publication date
DE253830C (en)
FR437880A (en) 1912-05-02

Similar Documents

Publication Publication Date Title
GB772532A (en) Improvements in razor blades for use in safety razors
ES204015U (en) A shave sheet. (Machine-translation by Google Translate, not legally binding)
GB191127880A (en) Improvements in and relating to Rulers.
GB191001564A (en) Adjustable Protractor Set Square.
GB190919100A (en) An Improved T-square.
GB721845A (en) Improvements in or relating to rulers and protractors
GB191003712A (en) An Improved Gauge for use in Cutting Glass.
GB190314410A (en) Improvements in Parallel Rules
GB190805821A (en) Improved Draughtsman's Device for Ruling Broken Lines.
GB112374A (en) Covered Writing or Drawing Slates.
US1392756A (en) T-square
GB191303920A (en) An Improved Combination Drawing Tool or Instrument.
GB569834A (en) An improved rule, set-square, straight-edge or the like
CN206791760U (en) A kind of multifunctional dress cutting ruler
US2366019A (en) Plotting instrument
GB150464A (en) An improved ruler and paper knife
GB191319715A (en) Improvements in or in connection with Pocket Knives.
US1413794A (en) Ruler blotter
GB189702029A (en) An Improved Ruler.
GB191424134A (en) Improvements in Rulers.
GB191224725A (en) Improvement in Screws.
GB559636A (en) Improvements in or relating to measuring scales
GB190909320A (en) A New and Improved Centrolinead for Architects, Artists, Decorative Painters and others.
GB190913302A (en) Improvements in Parallel Rulers.
GB486428A (en) Improvements in and relating to rulers, straight edges and the like