US2015247A - Drawing board clamp - Google Patents

Drawing board clamp Download PDF

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Publication number
US2015247A
US2015247A US653530A US65353033A US2015247A US 2015247 A US2015247 A US 2015247A US 653530 A US653530 A US 653530A US 65353033 A US65353033 A US 65353033A US 2015247 A US2015247 A US 2015247A
Authority
US
United States
Prior art keywords
clamp
board
drawing board
board clamp
strip
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 - Lifetime
Application number
US653530A
Inventor
Tindal Stephen
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 US2015247A publication Critical patent/US2015247A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B43L5/00—Drawing boards
    • B43L5/02—Drawing boards having means for clamping sheets of paper thereto

Definitions

  • This invention has relation to a drawing board clamp and has essentially for its object to provide a clamping device attached to a drawing board for fastening the paper without use of pins 5 or adhesive.
  • Fig. 1 is a plan View of a drawing board illustrating the clamping device in position in accordance with the subject matter of my invention
  • Fig. 2 is a side elevation of the same
  • Fig. 3 is an enlarged perspective view of the clamping device.
  • the drawing board is fitted with a clamp A, which lies across the surface of the board B, close to its top edge 20 as shown in Fig. 1 in the accompanying drawing.
  • the clamp is grooved along its under surface to a size which fits accurately over a guide strip C, which is fitted tothe board and fixed as shown in Fig. 2.
  • a guide strip C which is fitted tothe board and fixed as shown in Fig. 2.
  • Through the board and strip 25 and clamp pass screw bolts, and the whole is tightened with finger or winged nuts D.
  • the front edge of the under surface of the clamp A presses against an inserted sheet of drawing paper and holds it tightly to the board.
  • a groove G is formed in the member A for the purpose of receiving pencils and other drawing instruments.

Description

Sept. 24; 1935. s. TINDAL DRAWING BOARD CLAMP Original Filed Jan. 25, 1933 Evan-0Q STEP/{Eu 77 N0 4 L.
IVTTORNEY Patented Sept. 24, 1935 UNITED STATES PATNT orries Application January 25, 1933, Serial No. 653,530.
Renewed April 26, 1935. In Great Britain February 1, 1932 1 Claim.
This invention has relation to a drawing board clamp and has essentially for its object to provide a clamping device attached to a drawing board for fastening the paper without use of pins 5 or adhesive.
The invention further includes those novel details of construction, combination and arrangement of parts, which will be fully described reference being had to the accompanying drawing,
in which:
Fig. 1 is a plan View of a drawing board illustrating the clamping device in position in accordance with the subject matter of my invention;
Fig. 2 is a side elevation of the same;
Fig. 3 is an enlarged perspective view of the clamping device.
In accordance with my invention the drawing board is fitted with a clamp A, which lies across the surface of the board B, close to its top edge 20 as shown in Fig. 1 in the accompanying drawing. The clamp is grooved along its under surface to a size which fits accurately over a guide strip C, which is fitted tothe board and fixed as shown in Fig. 2. Through the board and strip 25 and clamp pass screw bolts, and the whole is tightened with finger or winged nuts D. The front edge of the under surface of the clamp A presses against an inserted sheet of drawing paper and holds it tightly to the board.
When the drawing sheet is inserted it comes in contact with the guide strip 0, and this being at right angles to the edge of the board 13, immediately determines the position of the drawing sheet. At this stage the said guide strip is hidden, but view holes F are made in the clamp A, exposing parts of strip C, toenable the user of the board to see if the drawing paper is resting wholly against the edge of the said guide strip as illustrated in Fig. 3. When this has been ascertained the finger nuts D are tightened up, making it impossible for the drawing paper to alter its position. Steel springs are fitted between strip 0 and clamp A, which throw the said clamp clear of the drawing paper immediately the nuts are released.
A groove G is formed in the member A for the purpose of receiving pencils and other drawing instruments.
Having now particularly described my inven-
US653530A 1932-02-01 1933-01-25 Drawing board clamp Expired - Lifetime US2015247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2913/32A GB377904A (en) 1932-02-01 1932-02-01 Drawing board clamp

Publications (1)

Publication Number Publication Date
US2015247A true US2015247A (en) 1935-09-24

Family

ID=9748424

Family Applications (1)

Application Number Title Priority Date Filing Date
US653530A Expired - Lifetime US2015247A (en) 1932-02-01 1933-01-25 Drawing board clamp

Country Status (4)

Country Link
US (1) US2015247A (en)
BE (1) BE393882A (en)
FR (1) FR749447A (en)
GB (1) GB377904A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479511A (en) * 1945-03-09 1949-08-16 Jack C Pratt Drawing board
US2614360A (en) * 1948-12-07 1952-10-21 Melville P Hite Drafting board
US2623324A (en) * 1950-01-24 1952-12-30 Barber James P La Pad holder with a straight edge
US2953341A (en) * 1958-01-22 1960-09-20 Arlington Aluminum Co Folding easel
US4730819A (en) * 1986-06-02 1988-03-15 The United States Of America As Represented By The Secretary Of The Navy Printed circuit board clamp fixture
US20110011766A1 (en) * 2009-07-20 2011-01-20 Jody Puckett Method and System for Customized Images
USD861007S1 (en) * 2018-07-30 2019-09-24 Corsair Memory, Inc. Mouse mat with lighting

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479511A (en) * 1945-03-09 1949-08-16 Jack C Pratt Drawing board
US2614360A (en) * 1948-12-07 1952-10-21 Melville P Hite Drafting board
US2623324A (en) * 1950-01-24 1952-12-30 Barber James P La Pad holder with a straight edge
US2953341A (en) * 1958-01-22 1960-09-20 Arlington Aluminum Co Folding easel
US4730819A (en) * 1986-06-02 1988-03-15 The United States Of America As Represented By The Secretary Of The Navy Printed circuit board clamp fixture
US20110011766A1 (en) * 2009-07-20 2011-01-20 Jody Puckett Method and System for Customized Images
USD861007S1 (en) * 2018-07-30 2019-09-24 Corsair Memory, Inc. Mouse mat with lighting

Also Published As

Publication number Publication date
BE393882A (en)
FR749447A (en) 1933-07-24
GB377904A (en) 1932-08-04

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