US3518768A - Trysquares - Google Patents

Trysquares Download PDF

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Publication number
US3518768A
US3518768A US827124A US3518768DA US3518768A US 3518768 A US3518768 A US 3518768A US 827124 A US827124 A US 827124A US 3518768D A US3518768D A US 3518768DA US 3518768 A US3518768 A US 3518768A
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US
United States
Prior art keywords
blade
section
drawn
trysquare
elements
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
US827124A
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English (en)
Inventor
Andre Quenot
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.)
Quenot et Cie SARL
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Quenot et Cie SARL
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Publication date
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
    • G01B3/566—Squares

Definitions

  • the two elements of the trysquares must be easy to assemble in order not to be too expensive.
  • the invention proposes toprovide a simply mounted and constructed trysquares made from currently available material and which is at once solid and accurate.
  • the invention is concerned with metallic trysquares characterized by the two elements, one of which is a blade and the other is a tubular, or non-tubular, drawn section or stock united by securing means comprising made of synthetic material or moulded metal.
  • FIG. 1 is an elevation view of a trysquare constituted by a blade held in the milling of an I-shaped drawn section.
  • FIG. 2 is a side view of the trysquare according to FIG. 1.
  • FIG. 3 is an elevation view of a trysquare secured by two elements of synthetic material or moulded metal.
  • FIG. 4 is a side view of the trysquare according to FIG. 3.
  • FIG. 5 is a cross-sectional view taken along line VV of the trysquare according to FIG. 3.
  • FIG. 6 is a cross section view illustrating the securing of the blade.
  • FIG. 7 is a cross section view illustrating another way of securing the blade.
  • FIG. 8 is an elevation view of a trysquare with a tubular drawn section.
  • FIG. 9 is a cross-section view taken along line IXIX of FIG. 8 for the trysquare with drawn section.
  • FIG. 10 shows a trysquare with a mitre joint and a tubular drawn section.
  • FIGS. 11a and 11b are views illustrating a trysquare formed of two drawn sections in the shape of a U, shown from the side in FIG. 11b and from above in FIG. 11a.
  • Trysquare 1 is constituted by the rectangular assembly of a blade 2 and of a stock constituted by drawn profile 3 in the form of an I.
  • the blade 2 can be graduated or not.
  • the drawn section 3 is provided with a slot 4 milled along its medial plane.
  • An edge 6 of the blade 2 can overlap by a given distance an extremity 7 of the drawn section 3. Similarly, a lower end 8 of the blade 2 is located at a level above that of a lower base on edge 9 of the drawn section 3.
  • the rear extremity 7 of the drawn section 3 can make an angle of 30-45 or 60 relative to the base 9, or any other angle permitting the tracing of angles.
  • Two elements 13 or 14 for example parallelepipedal in shape made preferably of a synthetic material or moulded metal are fastened on either side of a core 15 of the drawn section 12 by means of securing elements for example screws 16 or pins, connecting through said core 15, by means of to punch holes, elements 13 and 14 together.
  • the blade 11 is maintained between the two elements 13 and 14 by fastening elements 21, for example, pegs or rivets.
  • the molded pieces 13 and 14 are knurled to facilitate the gripping contribute to the improvement of the aesthetic appearance of the trysquare assembly.
  • the rear extremities 17 and 18 of these elements 13 and 14 are not necessarily perpendicular to the lower edge 31 of the drawn section 12 and can form with this edge an angle of 3045 or 60 or any other angle,
  • element 13 can comprise cylindrical or non cylindrical studs 22 which engage in a corresponding opening REFERENCE 1s MADE TO FIG j In a modification: of the fastening .of.the blade.
  • element. 1'3 .is provided one or several projectionsQSQyvhichpass through" 1 corresponding holes in blade, 14,. penetratingin on several openings 27 of. the element14.
  • Elements .13 and 14 additionallyh vetholes28 and I infront of which are disposed fastening. ample pins (notshown).
  • the accuracy of fabrication ,of the drawn sections can be used to secure theretO one or several air bubble in order to make a combination instrument;
  • FIGS. 8 and 9 consisting of a blade 33 and a tubular drawn stock 34 preferably of rectangular cross-section.
  • This stock 34 can comprise on its upper surface 35 a slot 36 through which passes a blade 33.
  • slot 36 can be of any length as long as it allows the rear edge of blade 33 to overlap.
  • the slot 36 can also be omitted and blade 33 can be located completely out of the drawn section 34.
  • the blade 33 is maintained between two elements 37 and 38 of moulded synthetic material or of injected metal, by means of cogs 39 and pins 40, which may be fluted and which pass through the tubular section 34, elements 37 and 38 and the blade 33. Naturally, any other assembly can be used.
  • the blade 33 can comprise at its lower portion a stop 41 which bears' on the rear face of a base 42 of section
  • the elements 37 and 38 which can overlap an edge 44 of the blade to a greater or lesser extent by penetrating deeper in the tubular section, can also be secured inside the drawn section 34 by securing elements 43, such as screws or by being made as a force fit in the'section.
  • tubular section 34 may nothave a slot and may stop perpendicular to the inner edge 44 of blade 33.
  • the trysquare 45 made from a blade 46 and a tubular drawn section 47 whose ends are ,cut ofi to form a right angle.
  • the rear extremity 48 of the drawn section 47 is inclined relative to the main portion thereof.
  • a blade 46 is gripped between two elements,'49, for example an element of synthetic moulded material or injected metal.
  • Securing elements 51 for example pins, maintain the blade 46 and two elements secured together.
  • the drawn section 47 comprises in its upper rear part a short slot 52. It may also be without a slot and in this case the inner edge of the blade 46 passes by extremity 53 of the upper surface of the drawn section .or the blade 46 is nicked in order to allow the penetration of edge 53 of the drawn section.
  • the lower extremity of the blade..46. can be placed level with the lowersurface 54 of drawn section 47.
  • the surface 54 comprises a.sl ot (not shown) or the blade is unhookable at its extremity.
  • L. f j V 1 'Tl ieQtrysquare can c ornprise various improvements, for Iexample, or ie or. severalgraduated air bubble level containers (not shown) or a linear measuring tape 62. In this'case the overall length of the trysquare in which the tape is. housed is advantageously a number easy to add to the withdrawn part of the tape.
  • a trysquare comprising a stock and a blade, s aid stock comprising adrawn metallic section having a cross sectional shape forming. opposite channels, said, blade being disposed at-one end of said stock at an angle thereto, twouinserts received respectively in said channels and having end porti ons embracing aportion of saidblade received between.
  • thermmeans securing said inserts in said channels of said drawn metallic section, ,and means securing saidend portions of said insertsto .said portion of said-blade I 2.
  • inserts are of molded metal.
  • a trysquare according to claim 1 in which said drawn-metallic section is I-shaped in cross section with .a central plane web portion and opposite flange portions defining between them, said channels on opposite .sides of..said web portion, said. blade being disposed in the plane ofsaid web portion.
  • I I I v 5 A trysquare according to. claim 1, in which at least one integral stud on one said insert passes. through a hole in said blade-and is received in an alignedhole in :the other of said inserts.
  • A'trysquare accordingto claim 16 in whichlsa id'top wall is formed atone end with a slcotin, which said blade wdr I j. i I, a A 8.
  • a trysquare according tov claim,6, innwhicli a tape measure is, disposedinside anlend portion of 'said'rectan-gular metallic section, opposite thef end at which said blade isd i sposed., e, a 9i A;.. .trys quar,e according to claim ,6, in which the ends of said side walls of said rectangular metallic section; adjacent said blade aredisposed at an angle of forty ,five degrees. to the l ength ofsaid metallic section.
  • a trysquare comprisinga stock and ablade, said stoclccornprising a .drawn rnetallic section offI-shaped cross section with a central web portion and opposite flange. portions defining between them channels on opposite sides of saidweb po rtion said blade being disposed at oneend of said .stocle at an angle thereto, and two inserts received in said channels and having end portions embracing a portion of said blade received between them, neans securing said inserts to said drawn I-shaped secin which said tion, and means securing said end portions of said inserts to said portion of said blade.
  • a trysquare comprising a stock and a blade, said stock comprising a drawn metallic section of rectangular tubular cross section with upper and lower walls and opposite side walls, said blade being disposed at one end of said stock at an angle thereto, and two inserts received in said tubular stock and having end portions embracing a portion of said blade received between them, means securing said inserts in said stock, and means securing said end portions of said inserts to said portion of said blade.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Toys (AREA)
  • Package Frames And Binding Bands (AREA)
  • Sheet Holders (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
US827124A 1966-12-06 1969-05-20 Trysquares Expired - Lifetime US3518768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR86345A FR1518703A (fr) 1966-12-06 1966-12-06 Perfectionnements aux équerres

Publications (1)

Publication Number Publication Date
US3518768A true US3518768A (en) 1970-07-07

Family

ID=8622046

Family Applications (1)

Application Number Title Priority Date Filing Date
US827124A Expired - Lifetime US3518768A (en) 1966-12-06 1969-05-20 Trysquares

Country Status (5)

Country Link
US (1) US3518768A (fr)
CH (1) CH458989A (fr)
ES (1) ES139885Y (fr)
FR (1) FR1518703A (fr)
GB (1) GB1176558A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090139104A1 (en) * 2007-11-30 2009-06-04 Rohweder Barry L Multi-piece framing square
US10539405B2 (en) 2015-12-24 2020-01-21 Cosimo Fuda Jig of spirit level clamping aid tools, squares and hand clamps
USD947691S1 (en) * 2020-04-05 2022-04-05 Meng Zhang Layout square

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE22834T1 (de) * 1983-03-23 1986-11-15 Alfer Alu Fertigbau Anschlagwinkel.
US4766713A (en) * 1987-07-27 1988-08-30 Delaware Capital Formation, Inc. Packaging device including dual clip attachment apparatus, a casing brake mechanism and gathering mechanism
DE9207299U1 (de) * 1992-05-29 1992-08-13 Ruoff, Gerhard, 7247 Sulz L-förmige Winkelschablone
WO2009105093A1 (fr) 2008-02-19 2009-08-27 James Williams Instruments d’évaluation de perpendicularité et procédés pour les actionner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US126527A (en) * 1872-05-07 Improvement in try-squares
US1323742A (en) * 1919-04-18 1919-12-02 Ryland Jesse Burroughs Builder's square.
FR655691A (fr) * 1928-06-13 1929-04-22 Nouvelle équerre métallique
US2246260A (en) * 1939-08-05 1941-06-17 Southington Hardware Company Try square

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US126527A (en) * 1872-05-07 Improvement in try-squares
US1323742A (en) * 1919-04-18 1919-12-02 Ryland Jesse Burroughs Builder's square.
FR655691A (fr) * 1928-06-13 1929-04-22 Nouvelle équerre métallique
US2246260A (en) * 1939-08-05 1941-06-17 Southington Hardware Company Try square

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090139104A1 (en) * 2007-11-30 2009-06-04 Rohweder Barry L Multi-piece framing square
US10539405B2 (en) 2015-12-24 2020-01-21 Cosimo Fuda Jig of spirit level clamping aid tools, squares and hand clamps
USD947691S1 (en) * 2020-04-05 2022-04-05 Meng Zhang Layout square

Also Published As

Publication number Publication date
ES139885Y (es) 1969-07-16
ES139885U (es) 1969-01-16
CH458989A (fr) 1968-06-30
GB1176558A (en) 1970-01-07
FR1518703A (fr) 1968-03-29

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