|Publication number||US1749706 A|
|Publication date||Mar 4, 1930|
|Filing date||Feb 27, 1928|
|Priority date||Feb 27, 1928|
|Publication number||US 1749706 A, US 1749706A, US-A-1749706, US1749706 A, US1749706A|
|Inventors||Kingston Frank G|
|Original Assignee||Builders Patent Scaffolding Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (4), Classifications (15)|
|External Links: USPTO, USPTO Assignment, Espacenet|
March 4, "1930. F. 6 KINGSTON LEG FOR HORSES, ETC
Filed Feb. 27, 1928 Patented Mar. 4, 1930 UNITED STATES PATENT OFFICE FRANK G. KINGSTON, OF WEST SOMERVILLE, MASSACHUSETTS, ASSIGNOR TO BUILD- 'ERS PATENT SCAFFOLDING COMPANY, OF WEST SOMERVILLE, MASSACHUSETTS, A PARTNERSHIP COMPOSED OF FRANK G. KINGSTON, A. R. KINGSTON, C. C, PIMM,
AND MABEL G. KITCHEN LEG FOR HORSES, ETC.
Application filed February 27, 1928. Serial No. 257,519.
Horses used in building work and for other purposes are shipped or transported from job to job and even from city to city. The cost of shipment makes important reduction to smallest possible bulk, yet safety of life 'and limb depends upon the strength of the scribed by or is included within the terms or scope. of the appended claims.
My invention is capable of being put to a great many uses. It will sufficiently illustrate its application to show it in the drawing and to describe it when employed to provide a horse or staging support for erection of buildings. Accordinglyin the drawings:
Fig. 1 is a perspective view illustrating my invention as legfor a, putlog, the dotted lines showing the legs in their folded position; Fig. 1 is a perspective view of a portion of the brace;
Fig. 2 is a detail view in cross section through the joist or horizontal support engaging member;
Fig. 3 is a perspective view of another embodiment of my invention.
Describing the embodiment of my inven tion shown in Figs. 1 and 2 of the drawing in a general way there are two straps or bands of rectangular form which may be passed over or through which may be thrust a horizontal wood member or joist to opposite sides of one of which metal legs are connected, the connection being such that the legs may be spread apart towards the foot ends to give a wide bearing on the ground or floor, and moved towards one another in substantial parallelism and to the other of which on opposite sides are pivotally connected the upper ends of two straight bars whose lower ends are pivoted to the sides of the leg so that when in use with the legs spread apart the bars will extend upward obliquely and constitute braces and the connection between said bars and their strap or band permitting them to move away from one another towards the legs or towards one another in substantial parallelism when the legs are to be folded up for shipment or storage. The metal of which the legs and brace bars are constructed has a certain amount of spring to allow the described spreading and collapsing or closing movements.
Describing in detail what is shown in the drawings,Figs. 1 and 2, the rectangular strap or clamp, 10, to which the legs, 11, are secured at their upper ends comprises a U- shape part that at the top extends over the joist, 12, and over each side thereof and below the bottom of the joist the sides of the clamp are connected by a horizontal bar, 13, whose opposite ends extend through holes in the sides and are upset on the outside thereof. Each leg 11 at its upper end is secured to the adjacent side of the strap, 10, by a rivet, 14, and spacing means which may be several washers, 15, are placed between the leg and the side of the strap, the washers, being of metal permitting enough play to allow the legs to be spread apart as shown in full lines in Figs. 1 and 2 supplemented by the spring of the metal of the legs. Towards their lower ends the legs are connected by a jointed brace, 16, which straightens out when the legs are spread apart and folds up when the'legs are moved into parallelism as shown in dotted line in Fig.1. The legs are preferably for strength and lightness made of angleiron.
The strap, 17, to which the upper ends of the two brace bars, 18, are pivoted is constructed precisely like the strap, 10, and the connection between the brace bars and the strap side,'17, is a rivet, and spacing washers are used precisely as in the case of the strap, 10, and legs, 11. The lower ends of the brace bars, 18, are secured by pivots, 19, to the outer side of the legs. The full and dotted lines of Fig. 1 show how substantial and rigid a support the legs constitute when in use and yet how compactly the device may be folded up for storage or shipment.
As shown in Fig. 1 the legs are used to support a putlog, which consists of a joist or of; purposes including roacl-barriers for use on roads in course of construction.
' againstthe underside ofthe wood members The construction shown in Fig; 8 dispenses with the joist or plank engaging loop at the top of the legs and theupper'ends of the-legs themselves are extended to engage opposite sides of the joist or plank with a clamping action I when the legs are spread apart atthebottom and the clamps or jaws thus'providedare released'when the legs are moved together at the bottom to collapse the legs. In the construction shown in Fig. 3, the legs are preferably made of angle iron and one of the flanges at the top is cutaway to leave the otherflange-to form the clamping jaw,22, and thepairof legs are connectedjbjy a 'cross bolt,v23, with a spacer, 24:" between them. Said bolt connection is a pivotal one which allows the above described action of the legs-in. clamping, and releasing an inserted board or joist. Brace bars, 25, are pivoted'at one. end tothe legs and at the other endhavejholes for nails to attach brace bars to thejoistjor plank. It will be seen that the operation of settingnp ,a staging involves merely dropping a joist: or plank between the open jaws of. the, legs. then spreading the legs to clamp the joist or plank and then nailing the bracesandfjaws to the plank and the takingdown operation is quite as easily, performed. A.leg, 22, maybe provided with holes as shown in Fig. 3 fordri'ving nails into the plank betweenthetwo jaws. In Fig. 3 the. end portion of the plank isshown broken awayin full lines to disclose the parts that would be hidden by showing the complete plank, and. the break isabove thelowermost nail-hole. The legs providepowerful levers to ,operate the jaws.
Preferably, as indicated in Figdl the A heightoii the legs may be adjusted byproviding an angleIironextensi-on, 26, for each leg, the leg andthe extension being provided with avertical series of bolt holes .to adjust the'verticalposition of the extension. The
holes. in the leg flange .are designated, 29, and the boltisdesignated, '30, in Fig. 1.
Nails .maybeused to -secure the strap,10, or. a screw-clamp 27, may be used that. engages athreaded hole in the bar, 13, and bears or joist, ,12, as shown invFig. 2.
The bars of thebrace, 16 are preferably lockedor held in horizontal bracing, position aeibygneeasefel s28s n e a hb nt t s adapted to overhang the adjacent top edge of the other bar which is preferably notched to receive said lug.
What I claim is:
1. A support for a horizontal member comprising a pair of member-engaging devices for separable connection with the member, a pair of legs connected to one of said devices movable to diverge in opposite; directions or towards one'another and a pair of brace bars extending between the other device and the legs and pivoted to the legs formovement with said other device towards and from the legs.
2. A support-fora horizontal member comprising a pair. of member-engaging devices for separable connection with the member, a
pairof legs connected to one of said devices movable to dlverge lIl opposite directions or toward one another and a pair of brace bars extending between the other device and the legs and pivoted to the legs for movement with said other device towards and from the legs, said devices being each in the formof a member encircling strap and the legs and braces being attached to thesidesthereof.
3; A support for ahorizontal member com prising a pair of member-engagingdevices for separable connection with the member, a
pair oflegs connected to one of said devices movable to diverge in opposite directions or Y towards one another and a pair ofbrace bars extending betweenthe other device and the legs and pivoted to the legs for movement with said other device towards and from thelegs, said devices being in the form of similar straps that extend about said m'ember and the legs and braces being flexibly connected with the strap sides.
4:. A support for a horizontal member comprising a pair of legsmovable towards and from one another, a transverse connection between the legs forming a center of motion, saidv connection being rigidbetween the legs, and means carriedby the legs above said-"connection to, receive the horizontal member.
In testimony whereof I hereunto aflix my signature.
FRANK Gr. KINGSTON.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2832647 *||Dec 29, 1953||Apr 29, 1958||Ernst Gerke Willy||Trestle for scaffolding and the like|
|US4776545 *||Aug 5, 1987||Oct 11, 1988||Ryobi Ltd.||Bench stand|
|US4823913 *||Apr 27, 1988||Apr 25, 1989||Riegel Jr Clifford S||Simplified self supporting scaffold structure having safety features|
|US7438300 *||Apr 21, 2006||Oct 21, 2008||Miller Manufacturing Company, Inc.||Hand truck with pivotal retainer|
|U.S. Classification||182/225, 403/102, 403/85, 52/657, 182/182.5, 182/176, 182/182.4, 403/104|
|International Classification||E04G1/38, E04G1/00, E04G1/34|
|Cooperative Classification||E04G1/34, E04G1/38|
|European Classification||E04G1/38, E04G1/34|