US472902A - Folding framing-square - Google Patents
Folding framing-square Download PDFInfo
- Publication number
- US472902A US472902A US472902DA US472902A US 472902 A US472902 A US 472902A US 472902D A US472902D A US 472902DA US 472902 A US472902 A US 472902A
- Authority
- US
- United States
- Prior art keywords
- square
- tongue
- blade
- folding
- catch
- 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
Links
- 241000283220 Odobenus rosmarus Species 0.000 description 4
- 210000000038 chest Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 210000004905 Finger nails Anatomy 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 241001486234 Sciota Species 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000003313 weakening Effects 0.000 description 2
Images
Classifications
-
- 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
-
- 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
- G01B3/02—Rulers with scales or marks for direct reading
- G01B3/04—Rulers with scales or marks for direct reading rigid
- G01B3/06—Rulers with scales or marks for direct reading rigid folding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2370/00—Apparatus relating to physics, e.g. instruments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32254—Lockable at fixed position
- Y10T403/32262—At selected angle
- Y10T403/32319—At selected angle including pivot stud
- Y10T403/32327—At selected angle including pivot stud including radially spaced detent or latch component
- Y10T403/32336—Engaging notch or recess in outer periphery of component
Definitions
- Figure l is a side elevation, partly in section, of my new and improved folding square.
- Fig. 2 is a similar view showing the square open in full lines andshowing it in dotted lines partly and entirely closed.
- Fig. Sillustrates in detail the inner end of the folding tongue, and
- FiglV is a detail viewA of the spring locking-catch.
- A indicates the blade or long side ofthe square
- B indicates the tongue or short side.
- the connected end of the blade is recessed, asv shown at a, and the inner end of the tongue B is reduced, asshown at b, to it in the recess a, and is formed with the apertured ear b', by meansof which the tongue is pivoted in the blade, a small pivot passing through this apertured projection.
- the springlocking-catch C which is secured at its lower end by the screw c.
- the catch C is provided on its inner longitudinal edge, adjacent to its upper end, with a locking-tongue C', which has its longitudinal edge beveled, whereby it will be seen' that said catch will operate automatii cally when the tongue is adjusted to a position at right angles to the blade.
- tongue is adj usted at right angles to the blade, the inner corner thereof will engage the beveled edge of the tongue C and press the spring-catch C outwardly until the beveled notch b2 in the transverse edge of thereduced inner end of the tongue reaches the beveled projection of the blade, when the said projection will be seated in the said notch and the tongue .will be locked in a position at right angles to the blade.
- the tongue is adapted to fold against the inner longitudinal edge of When the.
Description
(No Model.)
T. S. MORSE. FOLDING FRAMING SQUARE.
UNITED STATES PATENT OFFICE.
krlHOlWlAS SPURR- MORSE, OFvLENO-X, MASSACHUSETTS.
FoLDlNe FRAMlNG-SQUARE.
SPECIFICATION forming part of Letters Patent No. 472,902, dated April 12, 1892. Application inea Ap'iii 15, 71891: serial No. 388,972. (Nomoael.)
To aZZ. whom, it may concern:
Be it known that LTHoMAs SPUER MORSE, a citizen of Nova Scotia, residing at Lenox, in the county of Berkshire -and State of Massachusetts, have invented certain new and useful Improvements in Folding Framinging framing-square which, while very simple,
in its construction, can be folded so as to occupy but a small part of the space required by the rigid framing-squares now in use; and my invention will be-hereinafter fully described and claimed.
Referring to the accompanying drawings, Figure l is a side elevation, partly in section, of my new and improved folding square. Fig. 2 is a similar view showing the square open in full lines andshowing it in dotted lines partly and entirely closed. Fig. Sillustrates in detail the inner end of the folding tongue, and FiglV is a detail viewA of the spring locking-catch.
The same letters of reference indicate cori responding parts in the several figures.
Referring to the several parts byletter, A indicates the blade or long side ofthe square, and B indicates the tongue or short side. Instead of the blade and tongue being rigidly secured together,'the connected end of the blade is recessed, asv shown at a, and the inner end of the tongue B is reduced, asshown at b, to it in the recess a, and is formed with the apertured ear b', by meansof which the tongue is pivoted in the blade, a small pivot passing through this apertured projection. In the outer lon gitudinal edge of the bladeA is formed a recess a', and in this recess fits the springlocking-catch C, which is secured at its lower end by the screw c. The catch C is provided on its inner longitudinal edge, adjacent to its upper end, with a locking-tongue C', which has its longitudinal edge beveled, whereby it will be seen' that said catch will operate automatii cally when the tongue is adjusted to a position at right angles to the blade. tongue is adj usted at right angles to the blade, the inner corner thereof will engage the beveled edge of the tongue C and press the spring-catch C outwardly until the beveled notch b2 in the transverse edge of thereduced inner end of the tongue reaches the beveled projection of the blade, when the said projection will be seated in the said notch and the tongue .will be locked in a position at right angles to the blade. It will now be seen that when the pivoted tongue is extended out at right angles to the blade A that the spring-catch C will engage with its notched inner end, so as to lock the tongue securely in a position at right angles to the blade, when the square is ready for use.
To fold the square, it is only necessary to draw the free end of the catch outward by engaging the finger-nail in a small notch c', formed in the upper end of the catch, as shown, so as to free its tongue C from the notch b2 in the inner end of the tongue, when the pivoted tongue can be turned down, as shown in dotted lines in Fig. 2 of the drawings, until it extends along the inner side' of the blade A parallel with the same.
By the construction described it will be readily perceived that the tongue is adapted to fold against the inner longitudinal edge of When the.
the blade and that when folded the square ters chest or tool-box must be made twice as large as is necessary for the accommodation of his tools in order to enable thesolid square to be placed therein; but by means of my folding square the size of this chest or toolbox can be reduced one-half, as the square when folded is very compact and requires no more room than any of the othertools. There being no pressure on the spring-lock, except IOO at the moments When locking or unlocking the pivoted tongue, it will lWear for an indelinite period Without weakening in any Way.
The parts of the folding square being all formed of hardened steel, the square is practically indestructible and will last a life-time. 4Having thus described my invention, What I claim, and desire to secure by Letters Patent, is-
Ina folding framing-square, the combina,
tion, with the blade having a recess in its outer longitudinal edgeat its connected end and also having said end recessed,the springcatch seated in the recess in the longitudinal edge of the blade and connected at its lower end to said blade, the locking-tongue formed on the inner longitudinal edge of said catch adjacent to the free end thereof and having v In testimony whereof I afix my signature in g presence of two witnesses.
THOMAS SPURR MORSE.`
Witnesses:
J. T. PARSONS, EDWARD P. HALE.
Publications (1)
Publication Number | Publication Date |
---|---|
US472902A true US472902A (en) | 1892-04-12 |
Family
ID=2541761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US472902D Expired - Lifetime US472902A (en) | Folding framing-square |
Country Status (1)
Country | Link |
---|---|
US (1) | US472902A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030031250A1 (en) * | 1991-01-07 | 2003-02-13 | Acacia Media Technologies Corporation | Audio and video transmission and receiving system |
US20100050117A1 (en) * | 2005-06-10 | 2010-02-25 | Andrew Sherrard | Preferred contact group centric interface |
-
0
- US US472902D patent/US472902A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030031250A1 (en) * | 1991-01-07 | 2003-02-13 | Acacia Media Technologies Corporation | Audio and video transmission and receiving system |
US20100050117A1 (en) * | 2005-06-10 | 2010-02-25 | Andrew Sherrard | Preferred contact group centric interface |
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