US2561469A - Drawing instrument - Google Patents

Drawing instrument Download PDF

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Publication number
US2561469A
US2561469A US41431A US4143148A US2561469A US 2561469 A US2561469 A US 2561469A US 41431 A US41431 A US 41431A US 4143148 A US4143148 A US 4143148A US 2561469 A US2561469 A US 2561469A
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United States
Prior art keywords
hinge
straight edge
triangle
scale
spring
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Expired - Lifetime
Application number
US41431A
Inventor
Guinez Antonio
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.)
JOSEPH BLASIG
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JOSEPH BLASIG
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Publication date
Application filed by JOSEPH BLASIG filed Critical JOSEPH BLASIG
Priority to US41431A priority Critical patent/US2561469A/en
Application granted granted Critical
Publication of US2561469A publication Critical patent/US2561469A/en
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    • 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
    • B43L12/00—Means to prevent slippage
    • B43L12/02—Means to prevent slippage magnetic
    • 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

Definitions

  • This invention relates to drawing instruments and scales used by draftsmen, artists, and the like particularly in connection with drawing boards, and in particular means for resiliently or magnetically holding a triangle, scale, straight edge, or the like in operative position on a drawing board.
  • the purpose of this invention is to provide mechanical means for adjustably retaining a triangle, straight edge or the like in operative position on a drawing board without using the left hand for this purpose wherein both hands are free.
  • this invention contemplates a magnet for holding a steel triangle or straight edge to a steel strip at the edge of a board, or a spring clip for holding the triangle or straight edge to the board or the combination of the magnet with the spring clip and a hinge whereby the triangle or straight edge may be adjustably held and at the same time readily moved from one position to another.
  • the object of this invention is, therefore, to provide means for retaining drawing instruments and the like on a drawing board or flat surface without holding the devices by hand.
  • Another object of the invention is to provide means for mechanically holding drawing instruments on a board which may be used on boards of different types and sizes.
  • a further object of the invention is toprovide means for holding triangles, straight edges, scales, transparent sheets and the like to drawing boards which is of a simple and economical construction.
  • Figure l is a plan view illustrating spring clips holding sheets of transparent material over a scale or edge of a drawing board.
  • Figure 2 is a cross section through the device shown in Figure 1.
  • Figure 3 is a View showing a spring clip holding one scale perpendicular to another.
  • Figure 4 is a cross section through the device shown in Figure 3.
  • Figure 6 is a plan view showing a section .of a drawing board with parts broken away showing a hinge held on the edge of a drawing board by a spring clip and a triangle held to the hinge by a magnet.
  • Figure '7 is a cross section through the device shown in Figure 6.
  • Figure 8 is a View illustrating a hinge frictionally holding a scale to a straight edge with the hinge held by a spring clip.
  • Figure 9 is a view showing an end elevation of the device shown in Figure 8.
  • the spring actuated devices for retaining instruments in position upon a drawing board or the like of this invention includes spring clips [0 and ll, a hinge I2, and a magnet I3.
  • the spring clips I0 which have jaws I4 and 15 held by a spring l6, grip a U-shaped sheet ll of clear plastic or other suitable transparent material over a scale l8 hav-- ing a graduated edge [9, and with the parts positioned in this manner the sheets I! may be slid along the scale and used as desired.
  • the spring clip ll having a base 20 holds a graduated scale 21! over a straight edge 22 with the straight edge positioned on the base and extending under the roll forming the clip, and with the end of the scale 2
  • the scale may readily be slid along the straight edge and used in any position desired, and the parts may be used as a T-square or other drawing instrument.
  • the hinge l2 which is provided with plates 23 and 24 is clamped to the edge of a board 25 with a spring clip 26 having jaws 21 and 28 held by a spring 29 and provided with suitable handles, and a triangle 32 is held in position upon the board by the magnet l3.
  • the hinge and triangle are formed of material having magnetic attraction, and it will be understood that the hinge and triangle may be of any suitable type or design.
  • the triangle which is usually held against a T-square or straight edge by hand is, therefore, retained in position by the magnet and hinge so that both hands are free.
  • a straight edge or scale or a spring clip of any suitable type or design may be used and the different elements may be combined as desired.
  • the combination whichcomprises a bar providing a head, a straight edge providing a tongue positioned on the head and extended outwardly therefrom, a hinge having hinge plates extended therefrom positioned with one of said hinge plates extended below the head and the other on the end of the tongue positioned on the head, and a cylindrical spring having a slot in one side positioned over the hinge with the plates of the hinge extended through the a said slot whereby the cylindrical spring clamps the tongue to the head.

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  • Clamps And Clips (AREA)

Description

July 24; 1951 A. GUINEZ DRAWING INSTRUMENT set 1 Filed July 50, 1948 2 Sheets-Sh INVENTOR. 76 /22 0 2'0 6.2462222,
ATTU RN EYS July 24, 1951 A. GUINEZ DRAWING INSTRUMENT 2 Shets-Shset 2 Filed July 50, 1948 I N VEN TOR.
2W Wm .a A 6 jmiw Patented July 24, 1951 "UNITED STATES PATENT OFFICE.
DRAWING INSTRUMENT Antonio Guinez, New York, N. Y., assignor of forty per cent to Joseph Blasig, New York, N. Y.
Application July 30, 1948, Serial N 41,431
This invention relates to drawing instruments and scales used by draftsmen, artists, and the like particularly in connection with drawing boards, and in particular means for resiliently or magnetically holding a triangle, scale, straight edge, or the like in operative position on a drawing board.
The purpose of this invention is to provide mechanical means for adjustably retaining a triangle, straight edge or the like in operative position on a drawing board without using the left hand for this purpose wherein both hands are free.
In general use an artist, draftsman, or the like, who uses his right hand for drawing, holds a T-square, triangle, or the like with his left hand and makes a mark, line, or the like with a pencil or pen in his right hand. The left hand is, therefore, occupied at all times. With this thought in mind this invention contemplates a magnet for holding a steel triangle or straight edge to a steel strip at the edge of a board, or a spring clip for holding the triangle or straight edge to the board or the combination of the magnet with the spring clip and a hinge whereby the triangle or straight edge may be adjustably held and at the same time readily moved from one position to another. The object of this invention is, therefore, to provide means for retaining drawing instruments and the like on a drawing board or flat surface without holding the devices by hand.
Another object of the invention is to provide means for mechanically holding drawing instruments on a board which may be used on boards of different types and sizes.
A further object of the invention is toprovide means for holding triangles, straight edges, scales, transparent sheets and the like to drawing boards which is of a simple and economical construction.
With these and other objects and advantages in view the invention consists of the new and useful combination, construction, and arrangement of parts as hereinafter more fully described, set forth in the claim appended hereto, and disclosed in the accompanying drawings forming part hereof, wherein:
Figure l is a plan view illustrating spring clips holding sheets of transparent material over a scale or edge of a drawing board.
Figure 2 is a cross section through the device shown in Figure 1.
Figure 3 is a View showing a spring clip holding one scale perpendicular to another.
Figure 4 is a cross section through the device shown in Figure 3.
1 Claim. (01. 334m Figure 5 is a detail illustrating the spring clip shown in Figures 3 and 4.
Figure 6 is a plan view showing a section .of a drawing board with parts broken away showing a hinge held on the edge of a drawing board by a spring clip and a triangle held to the hinge by a magnet.
Figure '7 is a cross section through the device shown in Figure 6.
Figure 8 is a View illustrating a hinge frictionally holding a scale to a straight edge with the hinge held by a spring clip.
Figure 9 is a view showing an end elevation of the device shown in Figure 8.
Referring now to the drawings wherein like reference characters denote corresponding parts the spring actuated devices for retaining instruments in position upon a drawing board or the like of this invention includes spring clips [0 and ll, a hinge I2, and a magnet I3.
As illustrated in Figure l the spring clips I0 which have jaws I4 and 15 held by a spring l6, grip a U-shaped sheet ll of clear plastic or other suitable transparent material over a scale l8 hav-- ing a graduated edge [9, and with the parts positioned in this manner the sheets I! may be slid along the scale and used as desired.
In Figures 3, 4 and 5, the spring clip ll, having a base 20 holds a graduated scale 21! over a straight edge 22 with the straight edge positioned on the base and extending under the roll forming the clip, and with the end of the scale 2| also extending under the roll and positioned upon the straight edge. With the parts arranged in this manner the scale may readily be slid along the straight edge and used in any position desired, and the parts may be used as a T-square or other drawing instrument.
In the design shown in Figures 6 and I the hinge l2 which is provided with plates 23 and 24 is clamped to the edge of a board 25 with a spring clip 26 having jaws 21 and 28 held by a spring 29 and provided with suitable handles, and a triangle 32 is held in position upon the board by the magnet l3. The hinge and triangle are formed of material having magnetic attraction, and it will be understood that the hinge and triangle may be of any suitable type or design. The triangle which is usually held against a T-square or straight edge by hand is, therefore, retained in position by the magnet and hinge so that both hands are free.
In Figures 8 and 9 the plates of the hinge are clamped over a straight edge or bar providing a head 33 and the end of a straight edge providing a tongue 34 by a spring clip 35 and with the parts arranged in this manner the tongue may be slid along the head and used as desired.
A straight edge or scale or a spring clip of any suitable type or design may be used and the different elements may be combined as desired.
It will be understood that other modifications may be made in the design and arrangement of the parts without departing from the spirit of the invention.
What is claimed is:
In a T-square, the combination whichcomprises a bar providing a head, a straight edge providing a tongue positioned on the head and extended outwardly therefrom, a hinge having hinge plates extended therefrom positioned with one of said hinge plates extended below the head and the other on the end of the tongue positioned on the head, and a cylindrical spring having a slot in one side positioned over the hinge with the plates of the hinge extended through the a said slot whereby the cylindrical spring clamps the tongue to the head.
ANTONIO GUINEZ.
4 REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date Re.11,189 Carr Sept. 15, 1891 377,526 Levy Feb. 7, 1888 434,911 Birge Aug. 26, 1890 802,202 Dougan Oct. 17, 1905 1,679,084 Hooper July 31, 1928 1,759,989 Leaman May 27, 1930 1,849,493 Larkin Mar. 15, 1932 2,214,395 Woody Sept. 10, 1940 2,375,427 Mannino May 8, 1945 FOREIGN PATENTS Number Country Date 3,658 Great Britain Mar. 1, 1889 3,801 Great Britain Feb. 15, 1904 6,484 Great Britain Mar. 14., 1914 376,843 Germany June 5, 1923
US41431A 1948-07-30 1948-07-30 Drawing instrument Expired - Lifetime US2561469A (en)

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Application Number Priority Date Filing Date Title
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US2561469A true US2561469A (en) 1951-07-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503615A (en) * 1983-02-17 1985-03-12 Schreiber Jerry B Guide structure

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US377526A (en) * 1888-02-07 Island
US434911A (en) * 1890-08-26 Half to thomas b
GB190403801A (en) * 1904-02-15 1904-04-28 Robert Nelson Kotze Improvements in or relating to Instruments for use in Curve Plotting and for like purposes.
US802202A (en) * 1904-11-23 1905-10-17 Kennedy Dougan T-square clamp.
GB191406484A (en) * 1914-03-14 1915-02-11 John Hall Thorpe A T-square Attachment.
DE376843C (en) * 1923-06-05 Karel Gwozdz Tear bar
US1679084A (en) * 1927-10-03 1928-07-31 Rebecca E Hooper Pad holder and ruler
US1759989A (en) * 1927-10-11 1930-05-27 Thomas P Leaman Drafting implement
US1849493A (en) * 1928-02-16 1932-03-15 Dennis F Larkin Drawing board
US2214395A (en) * 1938-07-25 1940-09-10 C W Guernsey Line guide copyholder measure
US2375427A (en) * 1943-07-21 1945-05-08 Remington Rand Inc Sheet holder and position indicator

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US377526A (en) * 1888-02-07 Island
US434911A (en) * 1890-08-26 Half to thomas b
DE376843C (en) * 1923-06-05 Karel Gwozdz Tear bar
GB190403801A (en) * 1904-02-15 1904-04-28 Robert Nelson Kotze Improvements in or relating to Instruments for use in Curve Plotting and for like purposes.
US802202A (en) * 1904-11-23 1905-10-17 Kennedy Dougan T-square clamp.
GB191406484A (en) * 1914-03-14 1915-02-11 John Hall Thorpe A T-square Attachment.
US1679084A (en) * 1927-10-03 1928-07-31 Rebecca E Hooper Pad holder and ruler
US1759989A (en) * 1927-10-11 1930-05-27 Thomas P Leaman Drafting implement
US1849493A (en) * 1928-02-16 1932-03-15 Dennis F Larkin Drawing board
US2214395A (en) * 1938-07-25 1940-09-10 C W Guernsey Line guide copyholder measure
US2375427A (en) * 1943-07-21 1945-05-08 Remington Rand Inc Sheet holder and position indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503615A (en) * 1983-02-17 1985-03-12 Schreiber Jerry B Guide structure

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