US887560A - Trestle. - Google Patents

Description

PATENTED MAY 12, 1908.

M. WHITE.

TRBSTLB.

.PPLIOMION FILED D20. 10,1907.

Mnmuus WHITE ATTORNEYS No.ssaseo.. "speci ciano To all whom 'it 'may concern:

Be it known that I, MAXLrUs WHITE., a citizen of the United States, and a resident of Portsmouth, in the county ol Scioto and State ol' Ohio, have invented certain new and useful Improvements in T restles, of which the following is a specification.

My invention relates to improvements in tre-stles such as are used by plasterers, carpenters and other artisans, and has lor its object to provide a trestle which can be made at a small cost and one which can be quickly and easily set up, moved and taken down.

With these objects in view my invention consists in certain novel features ot construce tion, arrangement and combination ol" parts as will be hereinafter fully described and pointed outl in the claims, reference being hadl to the accoi'npanying drawing in which,

Figure l is a perspective view showing my improved trestle as in use. Fig.' 2 is a vertical section of one end ot' same, showing manner of adjustment. Fig. 8 is an end elevation of one of the saddle jacks used, Fig. 4 is a vertical section showing an, adaptation of a short ja'ck or shaft. Fig. 1t is a perspective view of the short jack or shaft.

In carrying out my invention I use usually two tripods having the legs A which may be ot various heights to suit the use to which they are to be put. Through the head B of each t/ripod is a vertical opening through which is slidably mounted the elevating shaft or post C in the upper end of which is made a notch or recess D in which is to be seated edgewise a board or v,timber E, said timber forming the back or rest for the planks F forming the platform upon which the artisan stands.

In the elevating shaft C are a number ol" holes c at such distance apart as may be required and through which and the tripod head a pin G may be passed, said pin being ermanently secured to the tripod by a chain II. In the head B ol each tripod is made a notch or recess B so that by placing the sides of the tripods having these notches, facing each other the edgewisedisposed timber E may be placed in such notches.

I represents what I shall term a saddle jack the legs I I` of which are placed astride.the timber E and forms an additional base rest and brace for the board F. In Figs. 4 and la I have illustrated a jack head which ma be used in place of the elevating jack C an will be particularly useful where work is Umrnn STATEs-IrrENT OFFICE.

nofLettfs Patent. Iat'entedriifav *1 2",",1"308., Arpplicatiionvled.December 10, 1907..l "Serial Neill-05,8%.: l.' l l. i

to be donc in acloset; this-jack'-head consists of a hmizontal member J' and a postor standard J'` whieluisb providedwith aholej through which a pin may be passed to secure said jack head in the tripod head B.

As many saddle jacks similar to I may be used as are desired and they form a firm base for'l support ofthe platform F.

When it is desired to work in a closet or other conlined or small spare or in corners a single tripod can be used and one ol' the jack heads ,I used on which a small platform may be placed. 'l`he entire `device can be readily taken down and packed in a comparatively small space and' the whole device when in its l nock-do\rn condition can be readily transported from place to place and quickly set up for use. y 4

It will be seen that I provide a simple cheap and ellicient device of the character described, which can be easily handled and be transformed into a sale sca'llolding tor various purposes.

The scaffold shown in Fig. 1 is intended for use in narrow halls; to use the device in large. rooms the saddles I and the plank E are removed and one trestle placed at. one side of the room and another at the opposite side and by placing planks Vfrom one tol the other a large platform or scaffold is secured upon which the artisan works.

I claim:

l. The combination in a trestle mechanism oi" two standards each standard consisting of a base and a head, the head having a vertical passage therethrough, and a horizontal passage for the reception ol a pin, an elevating jack lor each stainlard adapted to slide in the vertical passage of the head and provided with adjusting holes therein to receive a pin and lock the same in the head, the upper end of each adjust-ing jack havinOr a rectangular recess or notch in its upper e ge a rectangular timber or bar adapted to be seated in the rectangular recess or notch in the upper edge ot' the adjusting jack, saddle jacks adapted to stra-ddle the timber,A said saddle jacks, consisting of lees to tit on each side ot' the timber, and a top bar bridging the legs, and a platform adapted to rest on said saddle jac rs and timber.

2. The combination in a trestle mechanism, of two or more standards, each standard comprising a head and legs to support the same, each head having a vertical passage therethrough, an adjusting jack or shaft i .stra

`A to it in said passage and adapted to be verlWall of the head near its outer edges,the third tically adjusted therein7 said adjusting jack leg secured tothe outside of the op osite side having a rectangular recess or notch inits Wall at its 'Verticalcenten each o said side upper edge. a' rectangular timber orv bar Walls having a vertlcal rectangular recess in 15 adapted to rest in the recess invsaid adjustits upper edge at its vertical center, whereby acksg and a saddle jack,y adapted to dle said rectangular .timber or bar.

3. A tripod on standard for a trestle .Quechanism comprising a head member Aaud"tl:1r ee dvergng legsY for supporting the same, tWo of said legs secured to' the outside of one slide ing a rectangular supporting timber may be seatedin said hea v MANLIUS WHITE. Witnesses:

A. H. JORDAN.

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