US889494A - Collapsible trestle. - Google Patents

Description

PATENTED JUNE 2, 1908.

' P. F. VAN HALDER."

GOLLAPSIBLE TRBSTLB:

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n'rr F PETER FFVAN HALDER, OFSHARON, PENNSYLVANIA.

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Application filed November 18, 1907. Serial No. 402,719.-

.j.O fl/ZZ whom it may concern:

Be it known that I, PETER F. VAN HALDER,

citizen of the United States, residing at Sharon, in the county of Mercer and State of Pennsylvania, have invented certain new and useful Improvements in Collapsible Trestles,

of which the following is a specification.

' space when not in use and w This invention has for its object a simple,-

durable, and efficient construction of trestle or horse, the parts of which are so arranged that the trestle may becolla sed whenever desired, so as to occupy very ttle lch may be readily set up for use whenever required, and the invention consists in certain constructions and arrangements of the parts that I shall hereinafter fully describe and claim.

For a full understanding of the invention, reference is to be had to the following description and. accompanying drawings, in which:

Figure 1 is a side elevation of my improved trest c with the partsfolded; Fig. 2 is a bottom plan ,view with the parts similarly arranged; Fig. 3 is a side elevation of the trestle in an operative position; and, Fig. 4 is-an end view, the lower ends of the legs being broken away. v

Corresponding and like parts are referred to in the followin description and indicated in all the views of the drawings by the same reference characters.

The body portion of my improved trestle comprises two members 1, preferably of angle iron arranged with their vertical members abutting and their horizontal members upermost and in the same horizontal lane.

hese members 1 are preferably rigidIysecured together at their middle by means of a rivet 2 and an interposed washer 3, so that the members are slightly siaced from each other, as shown. cured together near their ends'by means of the rivets 4 or similar fastening devices.

5 designates two brackets that are designed to extend transversely underneath the ends of the bod portion of the trestle and that are formed with longitudinally extending .webs 6 that are extended upwardly above the respective brackets between, the two members 1 of the body portion and pivqtailly 'mounted upon the rivets 4, the brackets the ing thereby arranged to be swun in planes coincident with the longitudinal plane of the body portion. Each bracket 5 is rovided with two rivets or similar fastening evices 7,

Specification of Letters Patent.

The mem ers 1 are also se- Patented June 2,1908.

and preferably angle iron legs 8 are mounted to swing laterally or towards and away from each other on the respective rivets 7. Each leg is formed with an upward extension 8 abo'veits'pivot oint or rivet 7, the said extensions being of a length to abut against the horizontal portions of the members 1 of the body portion when the legs are swung outwardly to an operative spread out or inclined position, the said extensions also in this position 'of the parts abutting against the vertical portions of the members 1 as well.

From the foregoing description in connection with the accompanying drawing, it will be seen that I have provided a very sim le and efficient construction of collapsi lei laps the'other pair, the angular formation f and pivotal mountin of the legs permitting this arrangement. n' order to set up the trestle, it is only necessary to swing the legs outwardly on the rivets 4 until the assume an outwardly inclined position with respect to the body portion at which point, the upper ends of the extensions 8 Wlll abut against the horizontally extended portion of the members 1, and to then spread the respective legs of each pair apart until the said extensions 8" abut against vertically extending portions of the member 1. It is to be particularly noted that the extensions 8, by

abuttingagainst the horizontally extending portions of the members 1 relieve the rivets 4 and 7 considerably from the weight, and thereby assist in producing a durable and strong structure.

' While I have described the various parts as of angle iron, it is obvious that they may be made of wood, or partly of wood and partly of metal.

It is obvious that openings may be formed at any desired point in the trestle for the reception of lockirw pins, bolts or the like to. prevent the trest e from collapsing when erected in working order.

Having thus described the invention, what is claimed as new is:

1. A collapsible trestle, comprising a body portion, brackets pivotally connected to the legs being pivotally connected to the brackets I to swing transversely of the body portion and underneath the body portion thereof, the lc slbeing formed with upward extensions adapted to abut against two side faces and downwardly facing ortions of the body portion, whereby the atter will limit the outward movement of the legs as a whole and the outward spreading movement ofthe respective legs.

2. A collapsible trestle comprising a body portion embodying spaced members, laterally extending brackets formed with longitudinal webs extending upwardly between the spaced members of the body ortion and pivoted thereto to swing longitu mally thereof, and legs pivotally connected to the respective brackets and adapted to swing transversely of the body ortion, the legs being formed with upward extensions and the lower and two side faces of the body portionbeing arranged for engagement with said upward extensions so as to limit the out ward movement of the brackets and the outward movement of the legs.

In testimony whereof I aflix my signature in presence of two witnesses.

PETER F. VAN HALDER. [1,. 3.] Witnesses:

SAMUEL F. STAMBAUGH, JAMES A. MQCL RE.

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