US1516672A - Adjustable shoee post - Google Patents

Description

Nw 25, 1924. l

E. W. FRANZ ET AL ADJUSTABLE SHORE POST Filed July 14 lis INUTZORS Patented Nov. Z5, 1924.

UNITED STATES 1,516,672 PA'jrlatNTl OFFICE.

ETI-IAN W. FRANZ AND SIDNEY TATE, F EAST CLEVELAND, OHIO.

ADJUSTABLE SHORE POST.

App1ication filed July 14, 1921.

To all 'whom t may concern.'

Be it known that we, ETHAN W. FRANZ and SIDNEY TATE, citizens of the United States, and residents, respectively, of East- Cleveland, in the county of Cuyahoga and State of Ohio, and East Cleveland, in the county of Cuyahoga and `State of Ohio, have invented a certain new and useful Improvement in Adjustable Shore Posts, of which the following is a full, clear, and exact description.

In the laying of concrete floors it is customary to erect false work for receiving and temporarily supporting the fresh concrete. This false work commonly includes upright shore posts, stringers supported thereby, joists which are laid upon the stringers, and a deck built upon the joists.

After the concrete has be-en set to such an extent that it may be expected to sustain its own weight, the false work is taken down. In the method commonly `followed the stringere are lowered a suiiicient distance and the joists are tipped over, which allows the deck to descend 'out of contact with the concrete floor. This deck and joists and stringere are then removed, but the shore posts are allowed to remain standing. In fact, when the false work is; erected their upper `ends are allowed to project through the deck so as to be Hush with the upper surface thereof; and therefore when the deck and the supports therefor are removed and the shore posts left standing, said shore posts will engage the fresh concrete and prevent it from sagging before it is thoroughly hardened.

The erection of this false work including the necessary accurate levelling ofthe deck, and the alignment of the upper ends of the shore posts with the top of the deck, and the subsequent removal of the false work involves a very large labor cost, and very frequently a very considerable destruction of material employed in the false work.

The object of this invention is to greatly reduce the cost and loss incidentto the erection and removal of this false work. The invention by which this end is attained resides in the shore posts shown and their adj uncts, and consists in the construction and combination of parts shown in the drawing and hereinafter described and po-inted o-ut definitely inthe appended claims.

In the drawing, Fig. l is a vertical sectionall elevation of false work which sup- Serial No. 484,560.

ports a freshly laid concrete iioor, `including shore posts embodying the invention. Fig. 2 is a front elevation on an enlarged scale of a joist hanger and part of a shore post to which said joist hanger is secured; Fig. 3 is a side elevation of the construe tion sho-wn in Fig. 2; Fig. 4 is a side elevation partly sectioned of the clamp mechanism by means of which the shore post body is adjustably connected with the shore post leg; Fig. 5 is a sectional plan view in the plane of line 5 5 on Fig. 4 showing said clamping mechanism; Fig. 6 is a transverse sectional view through one of the shore posts in a plane indicated by line 6-6 on Fig. l, and Fig. 7 is a front elevation of one of the upper ends of one of the shore posts which is especially contrived for supporting a concrete bea-m instead of false work.

Each shore post is formed of a post body 10 having a longitudinal hole 1l extending from the bottom of the post upward as far as may be necessary or desirable. Each post also includes a leg 12 which telescopes into the post body from the bottom thereof; a clamping device which supports the body and is clamped at any desirable point along the leg l2. The post also includes a foot piece 13 which is below and in axial alignment with the leg l2 and is adj ustably con- 'nected thereto by a turn buckle which engages with the oppositely threaded adjacent ends of the foot piece and leg, which parts are cylindrical and are preferably made of ordinary pipe of suitable diameter.

` The `post body l0 is preferably made of two pieces 10a, 10b, o-f wood, nailed together, said pieces having in their engaging faces semi-cylindrical longitudinal grooves which when the two pieces are nailed together form the longitudinal cylindrical hole which receives the leg 12.

The post body and leg are connected by a self-adjusting automatic clamp, rcpresentei'l, in its entirety by 20. This clamp includes a base plate 21 upon which the lower ond of the post body is supported, said lower end being fitted into a recess in the upper side oi said base plate. This base plateis formed with two integral downwardly extended and oppositely inclined arms 23, in each of which is a slotv 24. There are two cani levers 25 which respectively pass through these slots 24. These are enlarged at their lower ends so that the lower ends can not pass through the slots, and some means, as

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