US1142694A

US1142694A - Adjustable bracket.

Info

Publication number: US1142694A
Application number: US69626612A
Authority: US
Inventors: William O Gilbert
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-05-09
Filing date: 1912-05-09
Publication date: 1915-06-08
Anticipated expiration: 1932-06-08

Description

w. 0. GILBERT. ADJUSTABLE BRACKET.

APPLICATION FILEDMAY 9' I912.

Patented June 8, 1915,. I

THE NORklS PETERS CO., PHOTO-LITHO. WASHINGTON. D Ci To all whom it may concern:

stood as illustrative only, and no {the limits of the invention.

WILLIAM O. GILBERT, 0F ARBOWSMITH, ILLINOIS.

AnJusrABLE BRACKET.

Be it known that I, WILLIAM O. GILBEiiT,

a citizen of the United States, residing at Arrowsmith, in the county of McLean and State of Illinois, have invented certain new and useful 7 Improvements in A'djustable Brackets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art towhich it apper- 'tains to make and use the same.

This invention is an adjustable bracket adapted more particularly for use upon inclined roofs, the objects of the invention being, first, to firmly support a staging at various distances from the apex ofthe roof for the purpose of constructing or repairing chimneys, or the like, at the apex ofthe roof or at points intermediate of thea'pex and the eaves thereof; second, to support the stage in'a substantially horizontal position irrespective of the slant .of the roof, "and,

third, to provide a bracket for general use which isof simple and inexpensive construc 25.

tion, the parts of which may be retained in unyielding operative position, and which may be packed into a small spacetofacilr' tateitransportation. T

The bracket oomprises' a base member, parallel upright members 'pivotally secured near one end to the base member, said par- "allel upright members being trussedto retain'them in'ri'gid upright position, a weightcarrying member, pivotally connected to the "base member, having means for adjustably mounting the same between the upright members, and -means for retaining the bracket upon a roof.

In; the accompanying drawings, forming a part of this application, I'have illustrated one embodiment of the invention, but the construction shown therein is. to be undert aszdefinlng Figure 1 is a perspective view of the bracket applied to a roof. Fig. 2 is a side elevation of the bracket with the extension 'member removed. Fig. 3 is a plan view of the 'bracket folded into compact position.

Fig. 4 is a detail view of theextension "member.

'The brackets of thisinvention are preferably arranged lpairs, which operate to support a platform. Each bracket is ,provided with a base member, a weight-carry.-

ing member pivoted to the base member,

Specification of Letters Patent.

to form .a ri

PatentedJune s, 1915.

Application filed May 9, 1912. Serial No. 696,263.

and an upright member preferably arranged T in pairs, provided with means coeperating with the weightrcarrying member and the base member for supporting the weight-carrylng member in a substantially horizontal position. The base member is provided with j an extension-member which 'may be united to the bracketfor the purpose of positioning the bracket-at various places below the apex of the roof. The upright member is preferably trussed and it is so united to the other members of the bracket as to preclude yielding movement of the upright member relative to the base member. g

In the embodiment of the inventionillustrated in the accompanying drawings, the

base member is composed preferably of two parallel bars 5, provided with a plurality of oppositely positioned holes 6.

Hooks"? preferably in the form of angle irons are removably secured, asby bolts 8,

member. 1 v A weight-carrying member-9 is 'pivotally secured at.10ito this base member 5, said weight carrying "member being preferably gid connection the base positioned between the parallel bars 5'of the base member in order to facilitate the'fold- .ing of the 'parts of' the bracket into a small space for transportation and the like. When the weight-carrying member is folded between the'base members,'it rests upon the plate a of said base member. This weightoarrying member may be of any suitable material, but to reduce the weight, cost of the strength of the parts, I prefer to fmake the member 9 of a plurality of'parallel I strips of wood whicha're. separatedby a metallic plate or'strip ll'extendingthe full length of the' weight-carrying member, said parallel strips 9 and metallic plate 11 being bolted or otherwise secured together. This v member] is provided, also, with a plurality 'of transverse holes 12 which register with some of the holes 6 within, the base member and through which

holes

6, 12,"a bolt or other fastening means may bep'assed tofretain the'parts in a folded position. The under surface of this base member is providedwith a pluralitylof transverse grooves 13, the purpose for which will be hereinafter 3 set forth. I v v The upright member is preferably composed of twoparallel bars 14;, each of which is provided 'withla plurality of holes'forw .manufacture, and at the same time retain r apertures 15, the holes of one bar being arranged opposite to those of the other bar for the purpose of receiving a bolt 16. This bolt is adapted to be positioned at various places on the upright part to correspond to the slant of the roof.

The bolt 16 cooperates with the transverse grooves 13 of the weight-carrying member to permit one end of said member to rest upon the bolts 16 and be freely movable in a vertical direction between the upright bars 14, the bolt operating to preclude longitudinal movement of the bar when said bolt engages one of the grooves 13. The parallel bars 14 are preferably so positioned that the base member 5 and the weight carrying member 9 may be compactly folded between the bars 14 of the upright member, as illustrated in Fig. 3.

To insure rigidity of the bracket and especially the upright member thereof, I have provided the parallel bars 14 with a base 17, a top brace 18, and have trussed the bars as at 19. The base 17 and the lower part of the truss cooperate to form a stop to limit v the movement of the upright member in one direction and serve also as a rest to support the bars 14 in a vertical position. The base 17 is preferably curved, as at 20, to facilitate the movement of the upright member in a direction to fold the various parts of the bracket, the base 17 of said upright member operating to sustain the entire weight of the bracket during the operation of folding parts to the position shown in Fig. 8.

The extension member, which cotiperates with the base member 5, is composed of a plurality of

parallel sections

21, 22, each section being provided with a series of adjusting holes 23 and with

bolts

24, 25 at each end of the sections. The space between the inner sections 21 .of this extension member is substantially the same as the space between the parallel upright bars 14, thereby permitting the inner sections 21 to be positioned on each side of the base member 5, where they may be retained in transverse alinement with said members by bolts passing through holes 23 of the

sections

21, 22, and through holes 6 of the base member 5. The unconfined ends of sections 22 may be provided with retaining hooks 7. If it is desired to position the bracket a considerable distance from the apex of the roof, bolt 24 may be removed, permitting these ends of the sections 21 to be secured to the end of the base member 5. i V

In operation, 1 preferably employ a pair of these brackets spaced a suitable distance apart with a staging or platform 00 resting upon the weight-carrying members 9, as shown in Fig. 1.

When it is necessary to repair a chimney situated on an inclined roof at a considerable distance'from the apex thereof, the

extension sections

21, 22 are bolted end to end by bolt 24, the hooks 7 of section 22 engaging the top of the roof at several points, shown in the drawings as at four points, said hooks operating to preclude movement of the bracket with reference to the roof. Bolt 16 is moved on the upright member to a position substantially on a horizontal plane with the bolt 10 of the base 7, to upright member resting on its base in a vertical position, and weight-carrying member 9 is then moved between the parallel bars 14 of the upright member until a groove 13 of said weight-carrying member engages bolt 16, thereby retaining the parts in operative position. The staging or platform may now be placed upon the weight-carrying members 9.

In transporting the device, bolt 16 is removed from the upright member thereby permitting the weight-carrying member 9 to fallinto position between the bars 5 of the base member; bolt 16 is then inserted through one of the series of holes 15 in the upright bars 14, through the holes 6 of the base member and the holes 12 of the weight-carrying member, thereby retaining .all the parts in a folded position in alinement with each other. If desired, the sections of the extension member may be so spaced apart that they may also be positionedin the same transverse plane as the other members of the bracket, the bolt 16 engaging the holes 24 of the extension member and operating to firmly secure all parts of the bracket and the extension member into compact form.

' Having thus fully described my invention, what I claim as new and desire to secure by LettersPatent, is

1. An adjustable bracketcomprising parallel base members, upright members pivoted to said base members, a weight carrying member pivotally mounted for free movement between said base members, a plurality of parallel extensionarms, one pair of which are pivotally secured to said base members by a bolt which serves as a pivot for said weight-carrying member, and removable angular hooks secured tothefree ends of said parallel extension arms, for the purposes specified.

2. An adjustable bracket comprising spaced base members having a stop plate on the lower face thereof, a weight carrying member pivotally mounted at one end and porting position, or folded into compact In testimony whereof, afliX my signa' form, and vglhen so folded th%uncon1fi]1O1ed end ture, in presence of two Witnesses.

of the Weig t carrying mem er Wil e posi- V f tioned between the trussed section of the up-' WILLIAM GILBERT 5 right members and the stop plate of the-base Witnesses:

members, and means to lookthe various mem- J. H. J AWLE,

bers in a compact form. L. M. JOHNSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.