US1783266A - Shore - Google Patents

Description

Dec. 2, 1930. V s oNs 1,783,266

SHORE Filed Aug. 27, 1927 2 Sheets-Sheet l Jaye/225.7:

A. H. SYMONS Dec. 2, 1930.

SHORE Filed Aug. 27, 1927 2 Sheets-Sheet 2 jzoeizzz Patented Dec. 2, 1930 UNITED STATES PATENT OFFICE ARTHUR H. SYMONS, OF CHICAGO, ILLINOIS, ASSIGNOR TO SYM ONS CLAMP & MFG. COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS snoiin Application filed August 27, 1927. Serial No. 215,811.

The invention relates to shores used in building constructions and more particularly to metallic head bracketstherefor.

One object of the invention is to provide a head bracket for shores which is light in weight, small in bulk, and which is adapted to be secured to a cross-bar to provide a bearing area of the desired length.

Another object of the invention is to provide a shore-head which is adapted for use with a centrally positioned cross-bar to form a T-head or with a laterally arranged crossbar to form an L-head for. the shore.

A still further object of the invention is the provision of an improved attachment to the head bracket designed primarily to support in conjunction with the bracket a crossbar of the L-head type. I

Other objects of the invention and the various advantages and characteristics of the present head-bracket construction will be apparent from a consideration of the follow ng detailed description.

The invention consists in the several novel features hereinafter set forth and more particularly defined by the claims atthe conclusion hereof.

In the drawings which accompany and form a part of this specification or disclosure and in which like numerals of reference denote corresponding parts throughout the several views: Fig. 1 is a perspective of a head bracket embodyingthe invention, showing the manner in which the bracketis used with a laterallypositioned crossbar toform an L-head ona shore. Fig.2 is a perspective of the head-bracket. Fig. 3 is a longitudinal section. Fig. 4 is a vertical section taken on line H of Fig. 3. Fig. 5 is a perspective showing the bracketattached to a barforming a T-h'ead for the shore. Fig. 6 is a horizontal section through the bracket-looking upward. Fig. 7 is an end elevation. Fig. 8 is an end elevation showing in detail the interlock-ing connection between the extension bar and the compression member.

The invent-ion is exemplified with a shore 10 consisting of an elongated timber usually 4 by 4". in cross section. In practice, it is customary to provide a vertically adjustable support for the shore to support the head at the top of the shore at the desired elevation. The head comprises a bracket 11 which is formed of a single casting and with depending side walls 12 and end walls 13 which form a square socket 14 which is adapted to receive and fit around the upper end of the shore 10. The opposed walls of this socket are substantially parallel so that the shore may be inserted in and removed from it. Inwardly extending ribs or walls 15 are formed at the top of'the socket to engage the top face of the shore. The bracket is also formed with integral projecting arms or members 15 and 16; Each of said arms comprises a top wall 17 of substantially the same width as theshore, andreinforcing ribs 18 between the top walls and the end-walls 13 of the socket. The top faces of the arms '15 and 16 form a surface to fit against the under side of a bar 19'of wood usually of the same size as the timber of the shore. The walls 17 of arms 15 and 16 are each provided with a hole 19 through which a nail or screw can be driven to secure the head bar 19 on the to of the bracket.

In practice, in many instances, the crossbar is nailed to the bottom of the form and it is desirable to secure theshore 10 in the socket so that it will not drop out while the adjusting device is being applied or adjusted to the lower end ofthe shore. For this purpose a slot 20 is formed in one of the end walls 13 of the socket so that a wedge 21 may be driven against one side of the portion of the shore in the socket. The outer edge of the wedge is confinediin loops 22 which are integral with the bracket and extend in- I v clined so that when the wedge is driven inwardly the shore will be firmly clamped in the socket. A removable retaining pin 23 may be inserted through a hole in the small end of the wedge to retain it in connected relation to the socket so that'it willnot be misplaced; The sides of arms 15 and16 are substantially coincident with the sides of the head bar 19. A bracket thus formed will be light in weight and small in bulk so as to keep the transportation costs at a practical minimum, may be readily secured to a head-bar, and may be readily attached to and detached from the shore. This bracket is adapted for use with a bar 19 to form an L-head, as exemplified in Figs. 1 and 3, or with a bar 19'" to form a T-head for the shore, as shown in Figs. 5 and 6.

In building construction, it is frequently necessary or desirable to provide an L-head on the shore or one which is adapted to support a form for concrete and also a platform or staging along the form. It is also desirable to utilize the same bracket in the L head as in the T-head so that different forms of brackets are not necessary. Itis also desirable to provide an additional support for the L-head under the platform so that it will be safely supported at one side of the form. The bar 19 of the L-head usually projects from one side, as at 19 a suflicient distance to support the form and an additional distance from the other side, as at 19, to underlie and support a platform. Vere the bracket extended sufliciently to rigidly support the outer end of the portion 19 it would be bulky and excessive in weight and to obviate this the invention provides an attachment which forms a removable extension consisting of a bar of metal 25, the inner end of which has an offset terminal or hook 26 to pass through a slot 27 in the top wall 17 of arm 16 so that its inner end may be inserted to underlie said wall and to overlie a depressed portion or loop 28 integral with, and at the other end of, said wall. The bar fits in this loop so that it will be held against transverse movement. The offset portion 26 prevents outward longitudinal movement of the bar when it is in place under the top bar 19. The upper face of bar 25 is substantiallyfiush withthe upper face of the arms 16 and 17 so as to form a continuation of the bearing surface provided by the arms. A lug 30 is riveted as at 31, to the outer end of bar 25 and is provided with integral downwardly extending separated hooks 32 to receive a brace or compression member 33 which is T-shaped in cross-section so that its web 33 will pass between the hooks 32 to lock the brace against transverse displacement from lug 30 and so its flanges 33 will abut against the hook to resist the downward stresses. The inner or lower end of the brace 33 is supported from the bracket 11 by a suspension bar or tension member 34, to the lower end of which is riveted a forked lug 35 which is provided with spaced ears 36. The flanges 33 of bar 33 abut against lug 35 and the web 33 fits between said ears. A bolt 37 is extended through said ears and a slot 38, in the web 33' to hold the bars 33 and 34 in con nected relation, more particularly when not in use. Slot 38 is elongated to permit the brace 33 and bar 34 to be folded together when not in use. The upper end of bar 34 is provided with a slot 39 to receive a hook 40 integrally formed on one of the walls 13 of the bracket 11 to support the bar and brace and to permit the bar and brace to be removed from the bracket when the attachment is not used.

This exemplifies an attachment which is adapted for use in an L-head for the shore and to rigidly support the long end thereof;

"which can be unhooked from the bracket when it is not to be used; and which consists of members which can be compactly held together for storage or transportation.

The invention is not to be understood as restricted to the details set forth, since'these may-be modified within the scope of the apnected to the bracket, and a brace having its lower end held by the suspension bar and its outer end engaging the extension bar.

2. The combination of a head bracket provided with a socket to receive the upper end of a shore, an extension bar removably secured to the bracket, a suspension bar removably connected to the bracket, and a brace having its lower end connected to the suspension bar and its outer end detachably connected to the extension bar.

3. The combination of a head bracket provided with a socket to receive the upper end of a shore and also provided with integral arms projecting from the walls of the socket and adapted to support a crossbar, an extension bar connected removably to one of the arms and adapted with said arms to support said crossbar, a hook on the outer end of the extension bar, a suspension bar, a hook connection between the suspension .bar and the bracket, and a brace having its lower end connected to the suspension bar and its outer end engaging the hook on the extension bar.

4. In a shore, the combination of a shoretimber adapted to be positioned vertically, a bracket secured to the upper end of the timber and provided at the top thereof with a substantially fiatbearingsurface to engage directly and support a crossbar, and a laterally extending supporting bar connected removably to the bracket and arranged so that the upper face thereof is aligned with the bearing surface and forms a continuation thereof.

5. In a shore, the combination of a shoretimber adapted to be positioned vertically,

a bracket secured to the upper end of the timber and provided at the top thereof with a substantially fiat bearing surface to engage directly and support a crossbar, a laterally extending supporting bar connected detachably to the bracket and arranged so that the upper face thereof is aligned with the bearing surface and forms a continuation thereof, and a brace extending diagonally between the Igimber and the outer end of the supporting 6. In a shore, the combination of a shoretimber adapted to be positioned vertically, a bracket secured to the upper end of the timber and provided at the top thereof with a substantially flat bearing surface to engage directly and support a crossbar, and a brace structure comprising a bar adapted to form a continuation of the bearing surface, a diagonal brace and a suspension bar, said brace structure being connected removably to and supported by the bracket. 7

7. A bracket provided with a socket to receive the upper end of a shore and an arm projecting laterally from one of the walls of the socket and adapted to form a substantially flat bearing surface to engage and sup port a crossbar, a bar having one end thereof connected detachably to the arm and adapted to form an extension of the bearing surface, and a brace for the extension bar connected to the other end thereof.

8. A bracket provided with a socket to receive the upper end of a shore and an arm projecting laterally from one of the walls of the socket and adapted to form a substantially fiat bearing surface to engage and support a crossbar, a bar having one end thereof connected detachably to the arm and adapted to form an extension of the bearing surface, and a brace associated with the extension bar and adapted to extend diagonally between Ilghe shore and the other end of said extension Signed at Chicago, Illinois, this 24th day of August, 1927 ARTHUR H. SYMONS.

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