Патент USA US2405321код для вставки
Aug 6» 1945» A. NEGOVAN vE11' AL _ ' l 29405321 SHORE Filed Aug. e, 194s AM Patented Aug. 6, 1946 2,405,321 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 . 10 Claims. (Cl. 248-354) 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 mem bers between which the other shore-part is ad justablyl received. ` ' 2 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 It is the Yobject of our invention to produce for I3 forms no part of our invention. The upper ends of the two members I I are held such a shore a removable extension by the use of which the effective length of the shore can in spaced relation by a cap I5, the particular construction of which does form part of our in be increased. More speciiically, it is your object 10 vention. As will be clear from Fig. 2,- the cap I5 to interconnect the shore >and extension by a embodies co-planar end portions I6 which over means which will hold the extension ñrmly in lie the upper ends of the shore-members I I. The alinement with the shore without requiring an centralportion of the cap is in the form of a excessive amount of longitudinal overlapping of stirrup, comprising v two vertical side walls I‘I the extension and shore. A further object` of 16 which extend downwardly along the inner faces our invention is to adapt a shoreV not only >for of themembers Il and the lower ends of which the reception of an extension but alsofor the are joined by a horizontally extending interme reception of an auxiliary head by means of which diate or bottom wall I8. Desirably, the cap also the area which the shore añords for the sup includes strengthening flanges I9 which extend port of objects resting upon it may be mate 20 vertically downward from the side edges of the rially increased. end portionv I6 and which'bridge the gap between In carrying out our invention, we provide the the two members II. The cap may be formed two-member shore-part, which is usually used as as a casting,A or may be constructed by welding the upper part of the shore, with a ,cap which together pieces of properly shaped steel plate. serves not only to hold in properly spaced rela 25 Bolts 20, which pass through the vertical legs tion the upper ends of the two members of vwhich Il Vand the respectively adjacent members Il, the upper short-part is composed but which also serve to hold the cap in place. Y serves to receive the lower end of a shore-exten The extension 22 for use with the shore may sion. The cap and shore-extension are provided be of any desired length and conveniently com with interñtting means which serve to hold the 30 prises a wood 4 x 4. The lower end of the exten 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 sion 22 is reduced in both transverse dimensions so that it may be received within a hollow sleeve 23 which desirably has the same exterior dimen in the absence of the extension, and is desirably sions as those of the body of the _shore-extension. also formed to receive a head of increased width. 35 The cap I5 is so proportioned that the sleeve The accompanying drawing illustrates our in 23 maybe received between the two side walls vention: . Il and flanges I9 of the cap; and the sleeve and Fig. 1 is a side elevation of the complete shore cap are provided with interengaging portions by with the extension in place thereon; Fig. 2 is a means of which the extension is held in proper ' fragmental isometric view illustrating the upper 40 alinement with the shore. As shown, such pro end of the shore; Fig. 3 is an isometric view visions include tongues 25, which are secured (as illustrating the lower end of the shore-exten by welding) to two opposite sides of the sleeve sion; Fig. 4 is a plan view of the upper end of .23 and which are receivable in grooves 26 formed the shore showing, in section, the lower end of the in the side walls I‘I of the cap. The interengag extension in place therein; Fig. 5 is a vertical ing faces of the tongues 25 and grooves 26 may 4,5 section through the upper end of the shore and converge downwardly slightly, so as to produce extension; and Fig. 6 is a fragmental side eleva a taper ñtwhich will become tight when the . tion illustrating the auxiliary headin place on extension is seated in the shore. In addition, the shore. the other two sides of the sleeve 23 are provided 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 extend ing members I I, which may be wood 2 x 4’s. The upper end of the pipe l0 is provided with across with downwardly projecting ears 21 receivable in notches 28 formed in the sides of the bottom .wall I8 of the cap. Desirably, the key-receiving grooves 2B of the cap are slots extending com pletely through the material of the side walls I1 and continuing into the intermediate leg I8 to 3 4 receive the lower ends of the tongues, which pro ject 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 sion with the metal sleeve 23, and by forming the Y 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 ñanges 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 sleeve-receiving portion of the cap l5 of metal,v "with closely interñtting, longitudinally extending protected by an L-shaped sheet-metal protector 3i! interposed between the member and the cap. By providing the lower end of the shore exten we are enabled to obtain a relatively snug iit '"It‘ongues and grooves preventing relative move ment of said sleeve and stirrup in a plane per between the cap and sleeve, whereby the exten sion will be held ñrmly in proper alinement with ~ the shore. Moreover, the fit of ther tongues 25 > within the slots 2e, and the in of tneears 2i within the notches 28 aid in preventing relatively ' lateral movement of the shore and theextènsion, and thus aid in maintaining those elements in.` proper alinement with each other. For the purpose of releasably holding the ex tension in associationïwith the shore »the flanges i9 may beprovided with small openings SI which, when the extension is- in place, are in alinement with openings 32 provided in opposite side walls of the sleeve 23, whereby a nail driven into the wood of the extension-shank 22 through the openings 3l and 32 will prevent the extension from being removed from the shore. In order to provide- an adequate supporting surface for any object supported by the shore s' when the extension is not in use the end portions pendicular to said flanges, 2. In a shore having upper and lower tele scoping 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 intercon necting 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 ñanges 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 exten sion and the side walls of said stirrup being pro vided with closely interñtting, longitudinally ex tending 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 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 sup- “e tongue-receiving grooves being correspondingly ported on the upper surfaces of the end portions tapered. i6 and the upper edges of the flanges i9, which 4. The invention set forth in claim 2 with the are all coplanar. i addition that said tongues are tapered and of ï The cap l5 is adapted »for the reception of any gradually decreasing width downwardly, the desired form of laterally projecting auxiliary 40 tongue-receiving grooves being correspondingly head, such for example as the plain auxiliary tapered. head 35 illustrated in Fig. 6. This auxiliary head 5. The invention set ‘forth in claim l with the conveniently comprises a length of 3 «x 4 or 4 x 4 addition that said grooves are located in the side to the lower surface of which ¿there -is secured a walls of said stirrup, and bolts passing through metal clip 36 adapted to engage the projecting 215 each stirrup side wall 'on opposite sides of the end of either of the end 'portions i6 of the shore groove therein and also through the adjacent cap. Also secured to the under surface of the vertically extending member of the upper shore head 35 is an L-shaped member 31 one leg of part. which is vertical and adapted to extend through 6. The invention set forth in claim 2 with the a slot 3B in the other of the end >portions I6 of 50 addition that said grooves are located in the side the shore-cap. kA removable key 39 receivable in Walls of said stirrup, and bolts passing through a hole in such member may be employed to hold each stirrup side wall on opposite sides of the groove therein and also through the adjacent vertically extending member of the upper shore the head 35 releasably in place. The lower end of the extension 22 is preferably ilush with, or even slightly below, the lower `end part. face of the sleeve 23 so that when the extension is in use its lower end will engage the 'bottom wall parts, a centrally disposed, upwardly opening I8 of the extension-receiving stirrup,1whereby verticalloads will be transmitted directly from said stirrup having spaced, parallel .side walls, 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 uppermost’it is to 7. In a shore, upper and lower telescoping stirrup at the upper end of said upper shore-part, et an extension receivable in said stirrup between said side walls, said side walls and the adjacent faces of said extension being provided with close ly interfìtting, longitudinally extending tongues and grooves preventing relative movement of said be understood that this is merely for convenience 65 extension and stirrup in a plane parallel to lsaid of description. The shore can be inverted if de side walls of the stirrup, . f sired, 0r it can be used in a horizontal 'or in >8. The invention set forth in claim V'7 with the clined position. > addition that said tongues are tapered and of gradually decreasing width downwardly, the We claim as our invention: »1. In a shore having upper and lower?telescop tongue-receiving "grooves being `corresrmndingly ing parts, said upper part comprising two lat erally spaced, vertically extending members, a 9. In a shore, upper and'lower >telescoping cap having end portions respectively overlying parts, a centrally Y disposed, upwardly opening stirrup _atfthe ‘upper end o'f-s'aidßup'per shore-part, the ends of said memberssand flanges intercom necting said end portions and ‘extending >across 75 said 'stump having spaced, parallel' side walls and' tapered. - » ’ f 1 2,405,321 a bottom wall, an extension adapted to be re ceived in said stirrup with its lower end sup ported on said bottom wall, the lower end of said extension and said bottom wall having closely in terñtting 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 interñtting provisions comprising downwardly extending projections on said sleeve and projection-receiving openings in said bottom wall. ALBERT NEGOVAN. ESTEL R. STRATTON. WILLIAM CLARK ROGGIE.