US2405321A - Shore - Google Patents

Description

Aug 6 1945 A. NEGOVAN vE11' AL l 29405321 SHORE Filed Aug. e, 194s Patented Aug. 6, 1946 UNITED STATES PATENT OFFICE" Albert Negovan, Chicago, Ill., and Estel R. Strat- Y ton vand William Clark Roggie, Indianapolis, Ind., assignors to Baker-Roos, Inc., Indian- Y apolis, Ind., a corporation of Indiana Application August 6, 1943, SerialNo. 497,674

Y lr Our Vinvention relates to adjustable shores,l and more particularly to that type oi shore in which one of two telescoping parts comprises a pair of laterally spaced, longitudinally extending members between which the other shore-part is adjustablyl received.

It is the Yobject of our invention to produce for such a shore a removable extension by the use of which the effective length of the shore can be increased. More speciiically, it is your object to interconnect the shore and extension by a means which will hold the extension rmly in alinement with the shore without requiring an excessive amount of longitudinal overlapping of the extension and shore. A further object` of our invention is to adapt a shoreV not only for the reception of an extension but alsofor the reception of an auxiliary head by means of which the area which the shore aords for the support of objects resting upon it may be materially increased.

In carrying out our invention, we provide the two-member shore-part, which is usually used as the upper part of the shore, with a ,cap which serves not only to hold in properly spaced relation the upper ends of the two members of vwhich the upper short-part is composed but which also serves to receive the lower end of a shore-extension. The cap and shore-extension are provided with intertting means which serve to hold the shore-part and extension firmly in alinement with each other. 'The cap is so formed as not to interfere with the usual use ofthe shore in the absence of the extension, and is desirably also formed to receive a head of increased width.

The accompanying drawing illustrates our invention:

Fig. 1 is a side elevation of the complete shore with the extension in place thereon; Fig. 2 is a fragmental isometric view illustrating the upper end of the shore; Fig. 3 is an isometric view illustrating the lower end of the shore-extension; Fig. 4 is a plan view of the upper end of the shore showing, in section, the lower end of the extension in place therein; Fig. 5 is a vertical section through the upper end of the shore and extension; and Fig. 6 is a fragmental side elevation illustrating the auxiliary headin place on the shore.

The shore illustrated in the drawing comprises a lower part Ill formed of pipe and provided with a suitable foot I0. The upper part of the shore comprises two laterally spaced vertically extending members I I, which may be wood 2 x 4s. The upper end of the pipe l0 is provided with across- 10 Claims. (Cl. 248-354) i headv I2 slidably engaging the members II, while the lower ends of the latter are provided with co-operating dogs I3 adapted to gripthe pipe III and hold the shore extended under load. The construction of the lower shore part and the dogs I3 forms no part of our invention.

The upper ends of the two members I I are held in spaced relation by a cap I5, the particular construction of which does form part of our invention. As will be clear from Fig. 2,- the cap I5 embodies co-planar end portions I6 which overlie the upper ends of the shore-members I I. The centralportion of the cap is in the form of a stirrup, comprising v two vertical side walls II which extend downwardly along the inner faces of themembers Il and the lower ends of which are joined by a horizontally extending intermediate or bottom wall I8. Desirably, the cap also includes strengthening flanges I9 which extend vertically downward from the side edges of the end portionv I6 and which'bridge the gap between the two members II. The cap may be formed as a casting,A or may be constructed by welding together pieces of properly shaped steel plate. Bolts 20, which pass through the vertical legs Il Vand the respectively adjacent members Il, serve to hold the cap in place. Y

The extension 22 for use with the shore may be of any desired length and conveniently comprises a wood 4 x 4. The lower end of the extension 22 is reduced in both transverse dimensions so that it may be received within a hollow sleeve 23 which desirably has the same exterior dimensions as those of the body of the shore-extension.

The cap I5 is so proportioned that the sleeve 23 maybe received between the two side walls Il and flanges I9 of the cap; and the sleeve and cap are provided with interengaging portions by means of which the extension is held in proper alinement with the shore. As shown, such provisions include tongues 25, which are secured (as by welding) to two opposite sides of the sleeve .23 and which are receivable in grooves 26 formed in the side walls II of the cap. The interengaging faces of the tongues 25 and grooves 26 may converge downwardly slightly, so as to produce a taper twhich will become tight when the .wall I8 of the cap. Desirably, the key-receiving grooves 2B of the cap are slots extending completely through the material of the side walls I1 and continuing into the intermediate leg I8 to 3 receive the lower ends of the tongues, which project below the lower end of the sleeve 23. To prevent injury to the wood shore-members li when the extension is being inserted, the end and inner face of each of such members may be protected by an L-shaped sheet-metal protector 3i! interposed between the member and the cap.

By providing the lower end of the shore extension with the metal sleeve 23, and by forming the Y sleeve-receiving portion of the cap l5 of metal,v we are enabled to obtain a relatively snug iit between the cap and sleeve, whereby the extension will be held rmly in proper alinement with the space between said members at opposite sides thereof, said cap being provided with a central stirrup extending downwardly between said two members and said anges and having side and bottom Walls, a shore-extension, and a sleeve upon the lower end of said extension, said sleeve being adapted to be received in said stirrup and between said flanges, opposite sides of said sleeve and the side Walls ci said stirrup being provided "with closely intertting, longitudinally extending '"Itongues and grooves preventing relative movethe shore. Moreover, the fit of ther tongues within the slots 2e, and the in of tneears 2i within the notches 28 aid in preventing relatively lateral movement of the shore and theextnsion,

and thus aid in maintaining those elements in.`

surface for any object supported by the shore s' when the extension is not in use the end portions I6 of the cap l5V desirably extend outwardly for a distance beyond the outer faces of the members H, as will be clear Vfrom the drawing. In the absence of the'extension 22, objects may be supe ported on the upper surfaces of the end portions i6 and the upper edges of the flanges i9, which are all coplanar. i

The cap l5 is adapted for the reception of any desired form of laterally projecting auxiliary head, such for example as the plain auxiliary head illustrated in Fig. 6. This auxiliary head conveniently comprises a length of 3 x 4 or 4 x 4 to the lower surface of which there is secured a metal clip 36 adapted to engage the projecting end of either of the end 'portions i6 of the shorecap. Also secured to the under surface of the head 35 is an L-shaped member 31 one leg of which is vertical and adapted to extend through a slot 3B in the other of the end portions I6 of the shore-cap. kA removable key 39 receivable in a hole in such member may be employed to hold the head 35 releasably in place.

The lower end of the extension 22 is preferably ilush with, or even slightly below, the lower `end face of the sleeve 23 so that when the extension is in use its lower end will engage the 'bottom wall I8 of the extension-receiving stirrup,1whereby verticalloads will be transmitted directly from the extension to the cap independently of the sleeve.

While we have illustrated and described the shore as vertically arranged with the short-'part comprising the members il uppermostit is to be understood that this is merely for convenience of description. The shore can be inverted if desired, 0r it can be used in a horizontal 'or inclined position.

We claim as our invention:

1. In a shore having upper and lowertelescoping parts, said upper part comprising two laterally spaced, vertically extending members, a cap having end portions respectively overlying the ends of said memberssand flanges intercom necting said end portions and extending across ment of said sleeve and stirrup in a plane perpendicular to said flanges,

2. In a shore having upper and lower telescoping parts, said upper part comprising two laterally spaced, vertically extending members, a eap having end portions respectively overlying the ends of said members and flanges interconnecting end portions and extending across the space between said members at opposite sides thereof, said cap being provided with a central stirrup extending downwardly between said two members and said anges and having side` and bottom walls, a shore-extension having a lower end adapted to be received in said stirrup and between said flanges, opposite sides of said extension and the side walls of said stirrup being provided with closely intertting, longitudinally extending tongues Vand grooves preventing relative movement of said extension and stirrup in a plane perpendicular to said flanges.

V3. The invention set forth inrclaim l with the addition that said tongues are tapered and of gradually decreasing width downwardly, the tongue-receiving grooves being correspondingly tapered.

4. The invention set forth in claim 2 with the addition that said tongues are tapered and of gradually decreasing width downwardly, the tongue-receiving grooves being correspondingly tapered.

5. The invention set forth in claim l with the addition that said grooves are located in the side walls of said stirrup, and bolts passing through each stirrup side wall 'on opposite sides of the groove therein and also through the adjacent vertically extending member of the upper shorepart.

6. The invention set forth in claim 2 with the addition that said grooves are located in the side Walls of said stirrup, and bolts passing through each stirrup side wall on opposite sides of the groove therein and also through the adjacent vertically extending member of the upper shorepart.

7. In a shore, upper and lower telescoping parts, a centrally disposed, upwardly opening stirrup at the upper end of said upper shore-part, said stirrup having spaced, parallel .side walls, an extension receivable in said stirrup between said side walls, said side walls and the adjacent faces of said extension being provided with closely interftting, longitudinally extending tongues and grooves preventing relative movement of said extension and stirrup in a plane parallel to lsaid side walls of the stirrup, f

8. The invention set forth in claim V'7 with the addition that said tongues are tapered and of gradually decreasing width downwardly, the tongue-receiving "grooves being `corresrmndingly tapered. f 1

9. In a shore, upper and'lower telescoping parts, a centrally Y disposed, upwardly opening stirrup atfthe upper end o'f-s'aidup'per shore-part, said 'stump having spaced, parallel' side walls and' a bottom wall, an extension adapted to be received in said stirrup with its lower end supported on said bottom wall, the lower end of said extension and said bottom wall having closely intertting provisions preventing their relative lateral movement.

10. The invention set forth in claim 9 with the addition of a rigid sleeve surrounding the lower end of said extension, said intertting provisions comprising downwardly extending projections on said sleeve and projection-receiving openings in said bottom wall.

ALBERT NEGOVAN. ESTEL R. STRATTON. WILLIAM CLARK ROGGIE.

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