US970625A - T-square. - Google Patents

T-square. Download PDF

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Publication number
US970625A
US970625A US52209909A US1909522099A US970625A US 970625 A US970625 A US 970625A US 52209909 A US52209909 A US 52209909A US 1909522099 A US1909522099 A US 1909522099A US 970625 A US970625 A US 970625A
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Prior art keywords
square
rule
disk
blade
piece
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Expired - Lifetime
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US52209909A
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Vincenc Krajicek
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Individual
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Priority to US52209909A priority Critical patent/US970625A/en
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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

Definitions

  • VINGENC KRAJICEK OF PARDUBITZ, AUSTRIA-HUNGARY.
  • This invention has for its object to combine the auxiliary means which are neces sary for drawing angles of given size, with the T-square in such a way that they form a handy whole with the latter.
  • the invention consists substantially in a second rule being combined with the blade of the T-square, which second rule is intended to replace the ordinary triangle or other set square, and for this purpose is arranged so as to be revoluble over a circular scale and also adapted to slide along the blade of the T-squa-re.
  • FIG. 1 is a plan view; and Fig. 2, a section on the line A-B of Fig. 1.
  • the blade 1 of the T-square is provided with a longitudinal slot 2 which serves for guiding a slide piece 3.
  • a disk 4 is firmly connected with the latter and between the slide piece 3 and the disk 4, a rule 5 is provided said rule 5 being pivoted on the sliding piece 3.
  • the disk 4 is provided with a Specification of Letters Patent.
  • VINGENC KRAJICEK ⁇ Vitnesses ALEXANDER Fnonmcn, FRANZ MARK.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Description

v. KRAJIEEK.
T-SQUARE.
APPLICATION FILED our. 11, 1909.
970,625. Patented Sept.20, 1910.
M; L3 L!:LiillJill.LLLUXQII UNITED s'rA'rns PATENT, OFFICE.
VINGENC KRAJICEK, OF PARDUBITZ, AUSTRIA-HUNGARY.
ID-SQUARE.
To all whom it may concern:
Be it known that I, VINCENO KRAJIGEK, commercial traveler, a subject of the Austro- Hungarian Emperor, and resident of 767 Sladkovskystrasse, Pardubitz, Bohemia, Austria-Hungary, have invented an Innproved T-Square, of which the following is a specification.
This invention has for its object to combine the auxiliary means which are neces sary for drawing angles of given size, with the T-square in such a way that they form a handy whole with the latter.
The invention consists substantially in a second rule being combined with the blade of the T-square, which second rule is intended to replace the ordinary triangle or other set square, and for this purpose is arranged so as to be revoluble over a circular scale and also adapted to slide along the blade of the T-squa-re.
An example of construction of the invention is shown in the accompanying drawings, in which Figure 1 is a plan view; and Fig. 2, a section on the line A-B of Fig. 1.
The blade 1 of the T-square is provided with a longitudinal slot 2 which serves for guiding a slide piece 3. A disk 4 is firmly connected with the latter and between the slide piece 3 and the disk 4, a rule 5 is provided said rule 5 being pivoted on the sliding piece 3. The disk 4 is provided with a Specification of Letters Patent.
Application filed October 11, 1909.
Patented Sept. 20, 1910.
Serial No. 522,099.
circular scale, of which only some divisional lines are shown, while the rule 5 is provided with a gage mark 7 This in combination with the dial or divided circle 8 allows of the rule 5 being adjusted to make any desired angle with the blade 1. A pointer or indicator 9 is provided on the upper side of the disk 4 the said pointer being pivoted on the pin 6, which pointer may be adjusted to a division 10 of the blade 1. This allows of parallel lines being drawn with the rule 5 at a given mutual distance apart without separate instruments, such as compasses or the like, being necessary.
Having fully described my invention, what I claim and desire to secure by Letters Patent is:
In an improved T-square, the combination of a graduated blade having a longitudinal slot, a piece adapted to slide in the slot, a graduated disk secured to said piece, a rule pivoted on said piece and interposed between the latter and the disk, a pin carried by the disk, and a pointer carried on the pin, substantially as described and shown and for the purpose set forth.
In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
VINGENC KRAJICEK. \Vitnesses ALEXANDER Fnonmcn, FRANZ MARK.
US52209909A 1909-10-11 1909-10-11 T-square. Expired - Lifetime US970625A (en)

Priority Applications (1)

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US52209909A US970625A (en) 1909-10-11 1909-10-11 T-square.

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US52209909A US970625A (en) 1909-10-11 1909-10-11 T-square.

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US970625A true US970625A (en) 1910-09-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010547A (en) * 1974-05-14 1977-03-08 Michael Kaitatzidis Drafting machine
US5226238A (en) * 1992-06-22 1993-07-13 Rahnefeld Paul E Infinite square
US20180256278A1 (en) * 2017-03-09 2018-09-13 Tat Wai Yau Smart pressure-sensitive measuring device for distal femoral tumor removal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010547A (en) * 1974-05-14 1977-03-08 Michael Kaitatzidis Drafting machine
US5226238A (en) * 1992-06-22 1993-07-13 Rahnefeld Paul E Infinite square
US20180256278A1 (en) * 2017-03-09 2018-09-13 Tat Wai Yau Smart pressure-sensitive measuring device for distal femoral tumor removal

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