US1525813A - Combination square - Google Patents

Combination square Download PDF

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Publication number
US1525813A
US1525813A US563392A US56339222A US1525813A US 1525813 A US1525813 A US 1525813A US 563392 A US563392 A US 563392A US 56339222 A US56339222 A US 56339222A US 1525813 A US1525813 A US 1525813A
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United States
Prior art keywords
blade
stock
combination square
combination
groove
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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
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US563392A
Inventor
Edward P King
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.)
LS Starrett Co
Original Assignee
LS Starrett Co
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 LS Starrett Co filed Critical LS Starrett Co
Priority to US563392A priority Critical patent/US1525813A/en
Application granted granted Critical
Publication of US1525813A publication Critical patent/US1525813A/en
Anticipated expiration legal-status Critical
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Measuring instruments characterised by the use of mechanical techniques
    • G01B3/56Gauges for measuring angles or tapers, e.g. conical calipers
    • G01B3/566Squares

Definitions

  • This invention relates to combination ⁇ squares, and particularly to an attachment for preventing the sliding stock or head from being disconnected from the blade.
  • the combination square it is sometimes desirable to reverse the stock on the blade. ⁇ Where the stock is completely detachable from the blade, as in the ordinary combination square, the mechanic is apt to drop the stock or the blade while making this adjustment.
  • Fig. l is an elevation of a combination square in accordance with my invention, and showing in dotted lines the stock moved to positions permitting it to be reversed upon the blade.
  • Fig. 2 is a fragmentary detail, partly in section, particularly illustrating the construction for preventing complete disengagement of the stock and blade, and
  • Fig. 3 is a section on the line 3 3, of Fig. 2.
  • the groove 3 terminates short of the ends of the blade in an enlargement 5 which prevents complete ydetachment of the stock from the blade and permits the stock to be swung about the blade at this point and reversed thereon.
  • the clamping bolt In use, when it is desired to reverse the stock upon the blade, the clamping bolt is loosened by unscrewing the tightening nut '6 thereof and the head moved endwise along the blade until the Guiding projection 7 of the clamping bolt lodges within the enlarge ment 5 at the end of the groove. The stock may then be swung about the blade and at this point reversed thereon without bodily detachment therefrom.
  • a blade having a longitudinally extending groove terminating short of the blade end in-an enlarged opening
  • a stock having a continuous slot in one end thereof permitting said stock to straddle said blade and have continuous bearing thereon throughout the length of the bottom of said slot
  • said stock being adjustable relative to said blade and having a releasable clamping member provided with a portion disposed for sliding travel in said groove of the blade to permit longitudinal adjustment of the stock relative to the blade and for turning movement in said enlarged opening of the blade to permit the stock to be reversed upon the blade without bodily detachment therefrom.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Scissors And Nippers (AREA)

Description

F eb. 10, 1925.
y 1,525,813 E. P. KING COMBINATION SQUARE Filed May 24, 1922 Patented Feb. 10, 1925.
EDWARD 1?. KING, OF ANDERSON, SOUTH CAROLINA, ASSIGNOR TO THE L. S. STARRETT COMPANY, OF ATHOL, MASSACHUSETTS, A. CORPORATION OF MASSACHUSETTS.
COMBINATION SQUARE.
Application filed May 24,
To all whom t may concern.'
Be it known that I, EDWARD l?. KING, a citizen of the United States, residing at Anderson, county of Anderson, State of South Carolina, have invented certain new and useful Improvements in Combination Squares, of which the following is a speciication.
This invention relates to combination` squares, and particularly to an attachment for preventing the sliding stock or head from being disconnected from the blade. In the use of the combination square it is sometimes desirable to reverse the stock on the blade. `Where the stock is completely detachable from the blade, as in the ordinary combination square, the mechanic is apt to drop the stock or the blade while making this adjustment.
To the end therefore of providing a combination square in which the stock will be positively prevented from being disconnected from the blade and will yet be capable of reversal upon the blade when desired, I have devised my present invention.
The construction and operation of my device, together with a selected embodiment which well illustrates the principles involved, is described and shown in the accompanying specification and drawings, and the characteristic features of novelty are particularly pointed out in the appended claim. Throughout the specification and drawings like reference numerals are applied, and in the drawings:
Fig. l is an elevation of a combination square in accordance with my invention, and showing in dotted lines the stock moved to positions permitting it to be reversed upon the blade.
Fig. 2 is a fragmentary detail, partly in section, particularly illustrating the construction for preventing complete disengagement of the stock and blade, and
Fig. 3 is a section on the line 3 3, of Fig. 2.
I have indicated at 1 the graduated blade and at 2 the slidable stock or head of a combination square of standard type. The blade 1 is provided between its edges in one face thereof with the usual longitudinal 1922. Serial N0. 563,392.
groove 8, and the stock or head 2 is provided with the usual clamping bolt l engaged in said groove and effective when tightened to hold the adjustment of the stock and blade relative to each other.
According to my invention, the groove 3 terminates short of the ends of the blade in an enlargement 5 which prevents complete ydetachment of the stock from the blade and permits the stock to be swung about the blade at this point and reversed thereon.
In use, when it is desired to reverse the stock upon the blade, the clamping bolt is loosened by unscrewing the tightening nut '6 thereof and the head moved endwise along the blade until the Guiding projection 7 of the clamping bolt lodges within the enlarge ment 5 at the end of the groove. The stock may then be swung about the blade and at this point reversed thereon without bodily detachment therefrom.
Various modifications in the construction and operation of my device may obviously be resorted to all without departing from the spirit of my invention if within t-he limits of the appended claim.
That I therefore claim and desire to secure by Letters Patent is In combination, a blade having a longitudinally extending groove terminating short of the blade end in-an enlarged opening, a stock having a continuous slot in one end thereof permitting said stock to straddle said blade and have continuous bearing thereon throughout the length of the bottom of said slot, said stock being adjustable relative to said blade and having a releasable clamping member provided with a portion disposed for sliding travel in said groove of the blade to permit longitudinal adjustment of the stock relative to the blade and for turning movement in said enlarged opening of the blade to permit the stock to be reversed upon the blade without bodily detachment therefrom.
In testimony whereof I affix my signature in presence of two witnesses.
EDWARD P. KING.
Witnesses:
D. OsBoRN, E. R. SWIFT.
US563392A 1922-05-24 1922-05-24 Combination square Expired - Lifetime US1525813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US563392A US1525813A (en) 1922-05-24 1922-05-24 Combination square

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US563392A US1525813A (en) 1922-05-24 1922-05-24 Combination square

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US1525813A true US1525813A (en) 1925-02-10

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US563392A Expired - Lifetime US1525813A (en) 1922-05-24 1922-05-24 Combination square

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510950A (en) * 1968-01-19 1970-05-12 Peter Andrews Sine,pin-headed dual square
US4028814A (en) * 1970-02-20 1977-06-14 Peter Andrews Pivoting rule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510950A (en) * 1968-01-19 1970-05-12 Peter Andrews Sine,pin-headed dual square
US4028814A (en) * 1970-02-20 1977-06-14 Peter Andrews Pivoting rule

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