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GB547308A - Improvements in and connected with "tee" squares - Google Patents

Improvements in and connected with "tee" squares

Info

Publication number
GB547308A
GB547308A GB955441A GB955441A GB547308A GB 547308 A GB547308 A GB 547308A GB 955441 A GB955441 A GB 955441A GB 955441 A GB955441 A GB 955441A GB 547308 A GB547308 A GB 547308A
Authority
GB
United Kingdom
Prior art keywords
lever
roller
secured
undersurface
butt
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
GB955441A
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
Priority to GB955441A priority Critical patent/GB547308A/en
Publication of GB547308A publication Critical patent/GB547308A/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
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/04—Guides for rulers
    • B43L13/048—Guides for rulers with T-squares

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

547,308. Rulers, drawing. TAYLOR, L. July 28, 1941, No. 9554. [Class 97 (iii)] A T-square is provided on the undersurface of the butt a with a pair of lugs c within which is pivoted a lever d having at one end a rubbertyred roller d<SP>5</SP> adapted to bear on an inclined edge e<SP>1</SP> of a bar e secured along the transverse underedge of the drawing board B. The lever d is provided also with a boss d<SP>2</SP> to house a spring d<SP>4</SP> bearing against the undersurface of the butt a, an adjusting screw d<SP>3</SP> being provided while at the extreme end of the lever d a finger piece is provided for manipulating purposes. Mounted in brackets secured to the blade a<SP>1</SP> is a roller g adapted to bear through a slot a<SP>2</SP> in the blades, on the paper secured to the drawing board. The roller g may be provided with tyres g<SP>2</SP> or it may be rubber covered.
GB955441A 1941-07-28 1941-07-28 Improvements in and connected with "tee" squares Expired GB547308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB955441A GB547308A (en) 1941-07-28 1941-07-28 Improvements in and connected with "tee" squares

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB955441A GB547308A (en) 1941-07-28 1941-07-28 Improvements in and connected with "tee" squares

Publications (1)

Publication Number Publication Date
GB547308A true GB547308A (en) 1942-08-21

Family

ID=9874237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB955441A Expired GB547308A (en) 1941-07-28 1941-07-28 Improvements in and connected with "tee" squares

Country Status (1)

Country Link
GB (1) GB547308A (en)

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