US797120A - Folding square. - Google Patents
Folding square. Download PDFInfo
- Publication number
- US797120A US797120A US24474105A US1905244741A US797120A US 797120 A US797120 A US 797120A US 24474105 A US24474105 A US 24474105A US 1905244741 A US1905244741 A US 1905244741A US 797120 A US797120 A US 797120A
- Authority
- US
- United States
- Prior art keywords
- square
- arm
- extension
- folding
- key
- 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
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B3/00—Folding or stowable tables
- A47B3/08—Folding or stowable tables with legs pivoted to top or underframe
- A47B3/091—Folding or stowable tables with legs pivoted to top or underframe with struts supporting the legs
- A47B3/0911—Folding or stowable tables with legs pivoted to top or underframe with struts supporting the legs the struts being permanently connected to top and leg or underframe and leg
- A47B3/0912—Folding or stowable tables with legs pivoted to top or underframe with struts supporting the legs the struts being permanently connected to top and leg or underframe and leg the strut being of two parts foldable relative to one another
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K87/00—Fishing rods
- A01K87/02—Connecting devices for parts of the rods
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- 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
- Y10T403/32393—At selected angle including pivot stud including bridging keeper
Definitions
- My invention relates to folding squares, and has for its object improvements with respect to the joint between the two arms of the square, together with simple and efiicient means for holding said arms in adjusted position.
- Figure 1 is an elevation of the square open.
- Fig. 2 is an elevation of the square closed.
- Fig. 3 is a transverse section on the line 3 3 of Fig. 2.
- Fig. 4 is a vertical section on the line 4 4 of Fig. 1.
- the two arms of the-square are indicated at 6 and 7, respectively, they being pivotally connected by a pin 8.
- a portion of the outer end of the arm 6 is cut away, as at 9, leaving a tongue 10, against which the inner end of the arm 7 bears when the square is open.
- the arm 6 is halved, as at 11, and the arm 7 has an extension 12, which is also halved and fits on the part 11.
- the pivot-pin 8 extends through the parts 11 and 12.
- the edge 13 of the tongue 10 is parallel to the outer edge 14 of the arm 6, and as the inner end of the arm 7 abuts against said edge 12 when the square is open both arms are made to extend in true relation to each other.
- the arm 6 is recessed, as at 15, and at one end one of the walls of the recess tapers, as at 16.
- the rear end of the extension 12 is shaped to correspond to the outline of the recess at this end, being beveled, as at 17, which part registers with the tapering portion 16 of the recess when the square is open.
- the recess forms a seat for a key 18, which is also tapered, as at 19, to correspond to the parts 16 and 17, and is arranged to be slid behind the extension 12.
- the key being wedge-shaped, it can be tightly jammed against the extension, thereby securely holding the arm 7 in adjusted position.
- the key is retained in the recess by being dovetailed thereinto, as clearly shown in Fig. 3.
- Upon sliding the key from behind the extension the square can be folded, as shown in Fig. 2.
- a folding square comprising one arm having a lateral extension, and another arm pivoted to said lateral extension and having a tongue projecting endwise and arranged to stop against the other arm, and a locking-key engageable between the arms.
- a folding square comprising one arm having a lateral extension, the inner edge of which is beveled, and another arm pivoted to said extension and having a slot, and a locking-key working in the slot and engaging the beveled edge of the extension.
Description
No. 797,120. PATENTED AUG. 15, 1905. A. Joflm'siw. FOLDING SQUARE. APPLICATION FILED PEB.,8, 1905.
:ill lfl'llllll-IFT'III lllrl'Jllilllll Ill! W 1 a a & 5
EH/AO I 1 a i? 3 7 'l'illwlll'l loinimwma JMQWW/ UNITE STATES PriTENT OFFIOE.
Specification of Letters Patent.
Patented Aug. 15, 1905.
Application filed February 8, 1905. Serial No. 244, 741.
To all whom/ it may concern:
Be it known that I, ARVE J OHNSON, a citizen of the United States, rcsidingat Zion City, in the county of Lake and State of Illinois, have invented new and useful Improvements in Folding Squares, of which the following is a specification.
My invention relates to folding squares, and has for its object improvements with respect to the joint between the two arms of the square, together with simple and efiicient means for holding said arms in adjusted position.
To this end the invention consists in certain novel features of construction hcreinafterdescribed and claimed.
In the accompanying drawings, Figure 1 is an elevation of the square open. Fig. 2 is an elevation of the square closed. Fig. 3 is a transverse section on the line 3 3 of Fig. 2. Fig. 4 is a vertical section on the line 4 4 of Fig. 1.
Referring specifically to the drawings, the two arms of the-square are indicated at 6 and 7, respectively, they being pivotally connected by a pin 8. A portion of the outer end of the arm 6 is cut away, as at 9, leaving a tongue 10, against which the inner end of the arm 7 bears when the square is open. Below the part 9 the arm 6 is halved, as at 11, and the arm 7 has an extension 12, which is also halved and fits on the part 11. The pivot-pin 8 extends through the parts 11 and 12. The edge 13 of the tongue 10 is parallel to the outer edge 14 of the arm 6, and as the inner end of the arm 7 abuts against said edge 12 when the square is open both arms are made to extend in true relation to each other.
The arm 6 is recessed, as at 15, and at one end one of the walls of the recess tapers, as at 16. The rear end of the extension 12 is shaped to correspond to the outline of the recess at this end, being beveled, as at 17, which part registers with the tapering portion 16 of the recess when the square is open. The recess forms a seat for a key 18, which is also tapered, as at 19, to correspond to the parts 16 and 17, and is arranged to be slid behind the extension 12. The key being wedge-shaped, it can be tightly jammed against the extension, thereby securely holding the arm 7 in adjusted position. The key is retained in the recess by being dovetailed thereinto, as clearly shown in Fig. 3. Upon sliding the key from behind the extension the square can be folded, as shown in Fig. 2.
Having thus described my invention, what is claimed as new, and desired to be secured by Letters Patent, is
1. A folding square comprising one arm having a lateral extension, and another arm pivoted to said lateral extension and having a tongue projecting endwise and arranged to stop against the other arm, and a locking-key engageable between the arms.
2. A folding square comprising one arm having a lateral extension, the inner edge of which is beveled, and another arm pivoted to said extension and having a slot, and a locking-key working in the slot and engaging the beveled edge of the extension.
In testimony whereof]. have signed my name to this specification in the presence of two subscribing witnesses.
ARVE JOHNSON. Witnesses:
W. A. SIMZONS, EMIL ZIMMERMAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24474105A US797120A (en) | 1905-02-08 | 1905-02-08 | Folding square. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24474105A US797120A (en) | 1905-02-08 | 1905-02-08 | Folding square. |
Publications (1)
Publication Number | Publication Date |
---|---|
US797120A true US797120A (en) | 1905-08-15 |
Family
ID=2865609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US24474105A Expired - Lifetime US797120A (en) | 1905-02-08 | 1905-02-08 | Folding square. |
Country Status (1)
Country | Link |
---|---|
US (1) | US797120A (en) |
-
1905
- 1905-02-08 US US24474105A patent/US797120A/en not_active Expired - Lifetime
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