US860161A - Adjustable trestle. - Google Patents

Description

,,PATENTBD JULY 16, 1907.

C. H. THOMAS. ADJUSTABLE TRESTLE.

APPLICATION FILED P33. 26, 1907.

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UNITED STATES PATENT oEEIoE.

CHARLES H. THOMAS, OF COLUMBUS, OHIO, ASSIGNOR OF ONE-HALF TO DAVID J. LAMP,

' OF REYNOLDSBURG, OHIO.

ADJUSTABLE TRESTLE.

N 0. 860,161. Specification of Letters Patent. Patented July 16, 1907.

Application filed February 25, 1907. Serial No. 359,075.

To all whom it may concern: narily suffice to revent slipping of the legs after ad Be it known that I, OHARLEs H. THOMAS, a citizen justment. To prevent the legs from slipping out when of the United States, residing at Columbus, in the the device is lifted about I can use set screws 8 to pinch county of Franklin and State of Ohio, have invented a the legs against the upper wall of the passage. certain new and useful Improvement in Adjustable To secure steadiness the horizontal passage of each Trestles, of which the following is a specification. block 3 is made at a slightly obtuse angle to the plane The object of this invention is to provide for the use of the passages for the legs, thus causing an outward inof plasterers, paper-hangers, carpenters, and other arclination of each pair of legs to the horizontal support tisans an improved horse or trestle that shall be ador ledger.

justable as to both its height and its length. From this construction it will be observed that the The invention consists in the construction hereinhorse or trestle is adapted to very small as well as Very after describedand claimed. large rooms, either as to their height or length and In the accompanying drawingsFigure 1 is a per- Width, and hence is especially useful-for plasterers and spective view of one end, showing a portion also of the paper-hangers.

supporting bar of the opposite end, the opposite ends I am cognizant of the United States patents issued to being substantial duplicates of each other. Fig. 2 is a Hughes N 0. 319,723, June 9, 1885, and Jones N o.

sectional view on a plane, including the line xx Fig.1. 495,492, April 18, 1893, and do not wish to be underln the views 3 designates end blocks or castings oi stood as attempting to Claim y g Shown y Saidiron or other metal of approximately parallelepiped. P

form but made hollow and frame-like for the purpose What I Claim and ir to Secure by Letters Patof reducing its weight. In the walls of the block are But 1S1 made openings or passages, as shown at 33 and 3 th l. A trestle comprising two integral end blocks each provided with opposing diagonal through passages in approxigenei al direction of which is oblique to the longitudinal mately Vertical planes and a horizontal passage intersect axis of the block These Oblique Openings are formed ing said planes above the line of intersection of said dingin different planes in the block and at angles to each onal passages, a wall of each of said diagonal passages other, and are designed to freely receive wooden legs being Provided Wi a p netrating edge, legs assing 4 and 5 In the block above the intersection of the through and adjustable by movement through said diagc onal passages, and a supporting bar loose in said horizonplanes of the legs 1s provided a horizontal opening 3 m1 passages throu h which is freel assed the wooden-ledger or 2. In an adjustable trestle, an end block provided with s y P r supporting bar 6. The ledger or supporting bar can an oblique passage to receive an ad ustable leg, the wall be made in several parts, a fraction of an additional part of Sald pl'ovlded wlth a penetrating 3 p b 1 1d a th b t 3. In an adgustable trestle, an end block plOVlClGd with belng deslgnated 6 an can 6 1e tone 61 u an oblique passage to receive an adjustable leg, the wall so as to be lon itudinall ad ustable b means of metal of said passage provided with a penetrating edge, and a e y Y yokes 7 Th upper ll f th lower ti f th set screw in said block to press the leg toward said penepassages 3 and 3 can be beveled or sharpened as seen tl'atmg edge .1) to penetrate the wood of ,the legs tpprevent pos- Witnesses sible slipping of them, butthe mere obliquity of the BENJAMIN E passages and weight of the block and ledger will ordi- LICE B CO K.

CHARLES H. THOMAS.

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