US695310A - Knockdown trestle. - Google Patents
Knockdown trestle. Download PDFInfo
- Publication number
- US695310A US695310A US6143801A US1901061438A US695310A US 695310 A US695310 A US 695310A US 6143801 A US6143801 A US 6143801A US 1901061438 A US1901061438 A US 1901061438A US 695310 A US695310 A US 695310A
- Authority
- US
- United States
- Prior art keywords
- trestle
- knockdown
- upright
- legs
- cross
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
- E04G1/32—Other free-standing supports, e.g. using trestles
-
- 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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44265—Gripping member face integral with or rigidly affixed to screw-driving portion
Definitions
- My invention relates to knockdown trestles, and has for its object to provide a trestle that is extensible and easy to take apart.
- Figure 1 is a perspective view of my trestle set up.
- Fig. 2 is a view of one pair of legs in knockdown position, and
- Fig. 3 is a side view of Fig. 2.
- the cross bar or beam 5 is adjustably held within the forked ends of adjustable uprights 6, said uprights having vertical motion within the triangular frame that forms a pair of legs and comprises a rigid triangular portion having sides 7, connected by cross-pieces 8, 9, 10.
- This rigid portion is capable of being lifted up or slid on sliding legs 11, and vice versa, which legs are provided with ratchet-racks 12, into which take pawls 13, secured to the portions 7 of the triangular frame.
- the sliding legs 11 are held to the triangular rigid portion by means of yokes L1 and 15 on the inner sides of the portions 7 and through which they can freely slide.
- the cross-piece 8 may be replaced by strap-iron binding or wooden cleats, as desired.
- Hinged or other ise secured to the upright 6 is a brace or strut 18, provided at one end with a clamp-jaw 19 and a thumb-screw 20, by which said jaw can be secured intermediate the ends of the beam, which is held at or near its ends within the casting 21 on the upper end of the upright 6.
- the trestle that I have devised has adj ustable logs and adjustable uprights, so that it is extensible to a greater height than trestles of its kind, enables a wide supporting-base without the use of too much material, the beam is easily removed, and the entire structure is very compact when knocked down.
- the legs are extensible independently of one placed on slanting surfaces and still maintain its upright position.
- a knockdown trestle comprising a crossbeam 5, triangular rigid end frames 7, a crosspiece 8, mounted on the frames, a verticallyadjustable upright 6, having bearing in said cross-piece, castings 21 carried by said uprights adapted to receive and clamp the crossbeam thereon, a rack 25 on the outer edge of the upright, a cross-brace 9, guides mounted thereon, a pawl 16 mounted on said brace adapted to engage said rack, a cross-brace 10 mounted at the base of the rigid frame, guides 17, carried thereby, yokes 14, 15 secured to the inside of the frame near the top and base, independently-adjustable legs 11 mounted in said yokes, a rack 12 formed on the outside of said legs, a pawl 13 carried by the rigid frame to engage the rackon the legs, a brace 18, hinged to the upright and clamps 19 on the free ends thereof adapted to engage the cross-beam, for the purpose specified.
Description
Patented Mar. ll, I902. H. E. HERSH.
KNDGKDOWN TRESTLE.
(Application filed May 22, 1901.}
(No Model.)
UNITED STATES EETcE.
PATENT HARVEY E. HERSH, OF ALLENTOIVN, PENNSYLVANIA, ASSIGNOR OF ONE HALF TO JACOB ERHARDT, OF NORTHAMPTON, PENNSYLVANIA.
KNOCKDOWN TRESTLE.
rL EGEFICB-EION forming part of Letters Patent No. 695,310, dated March 1 1, 1902.
Application filed May 22, 1901. Serial No. 61, 138. (N model.)
T0 00% whom it may concern:
Be it known that I, HARVEY E. HERSH, a citizen of the United States, residing at Allentown, in the county ofLehigh and State of Pennsylvania,have invented certain new and useful Improvements in Knockdown Trestles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the-same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.
My invention relates to knockdown trestles, and has for its object to provide a trestle that is extensible and easy to take apart.
Referring to the drawings, in which like parts are similarly designated, Figure 1 is a perspective view of my trestle set up. Fig. 2 is a view of one pair of legs in knockdown position, and Fig. 3 is a side view of Fig. 2.
The cross bar or beam 5 is adjustably held within the forked ends of adjustable uprights 6, said uprights having vertical motion within the triangular frame that forms a pair of legs and comprises a rigid triangular portion having sides 7, connected by cross-pieces 8, 9, 10.
This rigid portion is capable of being lifted up or slid on sliding legs 11, and vice versa, which legs are provided with ratchet-racks 12, into which take pawls 13, secured to the portions 7 of the triangular frame. The sliding legs 11 are held to the triangular rigid portion by means of yokes L1 and 15 on the inner sides of the portions 7 and through which they can freely slide. At the apex of the triangular rigid frame the cross-piece 8 may be replaced by strap-iron binding or wooden cleats, as desired. At the apex between the side pieces 7 sufficient space is left to allow the upright 6 to be freely moved up and down, said upright being held by pawl 16, secured on the cross-pieces 8 and 9, and takes into a ratchet-rack 25 on one edge of the sliding upright 6, the lower end of which upright is guided in a suitable bracket 17, secured to one of the cross-pieces,here shown as the lower one, 10.
Hinged or other ise secured to the upright 6 is a brace or strut 18, provided at one end with a clamp-jaw 19 and a thumb-screw 20, by which said jaw can be secured intermediate the ends of the beam, which is held at or near its ends within the casting 21 on the upper end of the upright 6. Two thumbscrews 22, taking through this casting and acting upon a jam-plate 23, securely holds the beam within the casting 22 on the end of the upright 6.
The trestle that I have devised has adj ustable logs and adjustable uprights, so that it is extensible to a greater height than trestles of its kind, enables a wide supporting-base without the use of too much material, the beam is easily removed, and the entire structure is very compact when knocked down. The legs are extensible independently of one placed on slanting surfaces and still maintain its upright position.
Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is-
A knockdown trestle, comprising a crossbeam 5, triangular rigid end frames 7, a crosspiece 8, mounted on the frames, a verticallyadjustable upright 6, having bearing in said cross-piece, castings 21 carried by said uprights adapted to receive and clamp the crossbeam thereon, a rack 25 on the outer edge of the upright, a cross-brace 9, guides mounted thereon, a pawl 16 mounted on said brace adapted to engage said rack, a cross-brace 10 mounted at the base of the rigid frame, guides 17, carried thereby, yokes 14, 15 secured to the inside of the frame near the top and base, independently-adjustable legs 11 mounted in said yokes, a rack 12 formed on the outside of said legs, a pawl 13 carried by the rigid frame to engage the rackon the legs, a brace 18, hinged to the upright and clamps 19 on the free ends thereof adapted to engage the cross-beam, for the purpose specified.
In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.
HARVEY E. HERSH. WVitnesses:
CHARLES HORN, JAS. L. SCHAAD.
another, and the trestle can therefore be
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6143801A US695310A (en) | 1901-05-22 | 1901-05-22 | Knockdown trestle. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6143801A US695310A (en) | 1901-05-22 | 1901-05-22 | Knockdown trestle. |
Publications (1)
Publication Number | Publication Date |
---|---|
US695310A true US695310A (en) | 1902-03-11 |
Family
ID=2763846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US6143801A Expired - Lifetime US695310A (en) | 1901-05-22 | 1901-05-22 | Knockdown trestle. |
Country Status (1)
Country | Link |
---|---|
US (1) | US695310A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4015313A (en) * | 1974-04-22 | 1977-04-05 | Oldford William G | U-bolt clamping element |
US4947962A (en) * | 1989-08-21 | 1990-08-14 | Helsper Steve M | Adjustable scaffold support |
US6733080B2 (en) | 1992-06-15 | 2004-05-11 | Herman Miller, Inc. | Seating structure having a backrest with a flexible membrane and a moveable armrest |
US20080029444A1 (en) * | 2003-09-19 | 2008-02-07 | Vesta Medical, Llc | Waste sorting method with decontamination |
US20220279928A1 (en) * | 2021-03-03 | 2022-09-08 | DriFlower, LLC | Vegetation hanging and drying system |
-
1901
- 1901-05-22 US US6143801A patent/US695310A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4015313A (en) * | 1974-04-22 | 1977-04-05 | Oldford William G | U-bolt clamping element |
US4947962A (en) * | 1989-08-21 | 1990-08-14 | Helsper Steve M | Adjustable scaffold support |
US6733080B2 (en) | 1992-06-15 | 2004-05-11 | Herman Miller, Inc. | Seating structure having a backrest with a flexible membrane and a moveable armrest |
US20080029444A1 (en) * | 2003-09-19 | 2008-02-07 | Vesta Medical, Llc | Waste sorting method with decontamination |
US20220279928A1 (en) * | 2021-03-03 | 2022-09-08 | DriFlower, LLC | Vegetation hanging and drying system |
US11930929B2 (en) * | 2021-03-03 | 2024-03-19 | DriFlower, LLC | Vegetation hanging and drying system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US695310A (en) | Knockdown trestle. | |
US1254890A (en) | Swing. | |
US691633A (en) | Sawbuck. | |
US644880A (en) | Work-bench. | |
US746988A (en) | Bag-holder. | |
US1099849A (en) | Rack. | |
US594731A (en) | Machine for driving tie-plates | |
US1936196A (en) | Adjustable trestle | |
US1107098A (en) | Scaffolding-support. | |
US984846A (en) | Adjustable horse. | |
US1150962A (en) | Hand-clamp. | |
US843220A (en) | Display-rack. | |
US1010262A (en) | Fruit-packing stand. | |
US687772A (en) | Folding jack. | |
US726420A (en) | Truck. | |
US814858A (en) | Folding truck. | |
US691120A (en) | Bag-holder. | |
US1154387A (en) | Concrete-molding machine. | |
US777219A (en) | Elevated platform or support for motor-vehicles, &c. | |
US598298A (en) | Folding bicycle-rack | |
US206855A (en) | Improvement in combined truck and bag-holder | |
US1019685A (en) | Combined bag-holder and weighing-scale. | |
US1055933A (en) | Truck. | |
US827578A (en) | Coffin-pedestal. | |
US340251A (en) | William l |