US2436799A - Outrigger type support - Google Patents

Description

March 2, 1948. P. FROST OUTRIGGER TYPE SUPPORT Filed July 7, 1945 v NW MN @Qm Patented Mar. 2, 1948 @FFICE OUTRIGGER, TYPE SUPPORT Lester P. Frost, United States Army, 7 Fort Belvoir, Va.

Application July '7, 1945, Serial No. 603,729

(Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) 2 Claims.

The invention described herein may be manufactured and used by or for the Government for governmental purposes, without payment to me of any royalty thereon. v

This invention relates to supports and particularly supports of the outrigger class known as pads.

It is an object of this invention to provide an outrigger type support constructed in a manner to be pivotally mounted to a structure.

Another object of this invention is to provide an outrigger type support pivotally mounted to a structure and having means selectively positioning and locking said support in a predetermined position in the vertical plane.

Another object of this invention is to provide an outrigger type support mounted to a structure in a manner such that it is freely pivotable in the horizontal plane and selectively pivotable in the vertical plane.

Another object of this invention is to provide an outrigger type support having a plurality of arms pivotally mounted to a structure and at least one of said arms being selectively extensible to position a foot pivotally mounted on at least one of said arms.

Another object of this invention is to provide an outrigger type support .having a swivel mounted foot connected to an arm pivotally mounted to a rotatable member secured to a structure and a cooperating similar arm positioning and locking said foot due to the extensibility of its construction.

A still further object of this invention is to pro vide a support of the type described that will be simple, easy and economical in construction, and efiicient and durable in use.

The foregoing and other objects and advantages of this invention will be more clearly understood from reading the specification in conjunction with the drawings, forming a part thereof, wherein:

Fig. 1 is a perspective view of the support secured to the rear of a vehicle;

Fig. 2 is a side elevation of the support, parts shown in section; and

Fig. 3 is a detailed sectional view taken on line 33 of Fig. 2.

In the drawings, wherein like members are given the same reference numeral, a bracket i is secured to any suitable structure, such as a trailer frame, material handling vehicle frame, and the like. Supported in the bracket It is a vertical pin or shaft H which may be mounted rotatably or rigidly in the bracket I0, as illustrated in the drawings. Mounted on the shaft H are two spaced and aligned sleeves l2, [2' constructed to rotate freely around the shaft II when the shaft is mounted rigidly; and, to rotate with the shaft when it is rotatably mounted. These sleeves l2, l2 are each provided with brackets or ears M' and I4 respectively constructed to receive pivot pins l5 and I5 and retain the inner ends of the outrigger arm I6 and outrigger adjusting arm l6 pivotally' mounted thereon.

A casting I1 is provided on the outrigger support, said casting having a-central bore l1 in which is rigidly mounted the outer end of the outrigger arm 6. The casting I! is also provided with two sets of cars It and I8 extending in different planes, with the sets of ears l8 and I8 being provided with aligned apertures 19 and i9 respectively. The outrigger adjusting arm I6 is pivotally connected atits outer end to the set of ears Is on the casting I! by means of a pivot pin 33 and is extensible. Hence, when the adjusting arm i5 is extended, the casting l! is raised,

which in turn causes the inner end of the outrigger arm id to move about its pivot l5 for raising the outer end of arm iii. A foot 2| of any desired shape, preferably circular, is provided with a pair of upwardly extending spaced parallel plates 22 and 22' having a suitable number of outer stiffener plates 23, and an inner stiffener plate 23' with the inner stiffener plate 23 formed between the parallel plates 22 and 22' to provide a rigid structure. A pivot pin 24 is mounted in apertures formed in the parallel plates 22 and 22' in a manner such that a hanger block 25 which is fitted between the set of ears I8 on the casting I? is pivotally supported by said pivot pin 24. The hanger block 25 has spaced parallel projections 26 extending outwardly therefrom which are provided with aligned apertures 21 adapted to receive the pivot pin 20 provided in the set of ears IS.

The extensible arm It may be provided with any suitable means for extending and contracting it. An economical, efficient and durable means, however, has been provided in the form of a tightening bolt assembly. This assembly requires that the arm 16 be divided and internally threaded members 29 and 29' secured to contiguous ends of the arm l6. One of these internally threaded members 29 is provided with right hand threads and the other with left hand threads so that a tightening bolt 30 having right hand threads on one end and left hand threads nally threaded members 29 and 29. A reversible 3 ratchet crank 3! having a detachable handle 32 is provided on the tightening bolt 30 for selectively turning the bolt to extend or contract the arm [6, and hence raise or lower the foot 2|.

The length of the internally threaded members 29 and 29' depends upon the character of the outrigger adjusting arm l6 if the arm It were hollow, a shorter threaded member 29 could be used than if the arm were solid.

Having thus described my invention, what I claim as new and wish to secure by Letters Patent is:

1. An outrigger support comprising a structure, a bracket mounted on said structure, a vertically extending shaft mounted on said bracket, spaced and vertically aligned sleeves mounted to rotate horizontally on said vertical shaft, an outrigger arm, an outrigger adjusting arm in the same vertical plane as said outrigger arm, horizontally extending pivot pins carried by said sleeves, the inner end of one of each of said arms pivotally mounted on one of each of said-pins on said sleeves whereby the outer ends of said arms may be moved vertically upward on and horizontally with said sleeves on said vertical shaft, a foot, a casting pivotally mounted on said foot, said casting including a central bore and two sets of ears, said sets of cars extending in different planes, a hanger block fitted into one of said sets of ears, the outer end of said outrigger arm rigidly mounted in said central bore and the outer end of said outrigger adjusting arm pivotally connected to said other set of ears, and means mounted on and adapted to selectively extend and contract said adjusting arm for raising or lowering the outer end of said outrigger arm.

2. An outrigger support comprising a structure, a bracket mounted on said structure, a vertically extending shaft mounted on said bracket, spaced and vertically aligned sleeves mounted to rotate horizontally on said vertical shaft, an outrigger arm, an outrigger adjusting arm in the same vertical plane as said outrigger arm, horizontal pivot pins carried by said sleeves, the inner end 4 of one of each of said arms pivotally mounted on one of each of the pins on said sleeves, whereby the outer ends of said arms may be moved vertically upward on and horizontally with said sleeves on said vertical shaft, a foot, a pair of upwardly extending spaced parallel plates and a plurality of stiffening plates formed between said parallel plates on said foot, a casting, said casting including a central bore and two sets of ears extending in difierent planes, a hanger block fitted into one of said sets of ears, a pivot pin extending through said parallel plates on said foot and said hanger block, whereby said foot is pivoted to said casting, spaced parallel projections extending outwardly from said hanger block and having aligned apertures therein, a pivot pin fitted in saidaligned apertures and extending through one of said sets of cars on said casting, the outer end of said outrigger arm rigidly mounted in said central bore of said casting and the outer end of said outrigger adjusting arm pivotally connected to said other set of cars, and means including a tightening bolt and a reversible ratchet crank on the bolt to extend or contract said outrigger adjusting arm for raising or lowering the outer end of said outrigger arm.

LESTER P. FROST.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 802,925 Ferris, Oct. 24, 1905 1,297,445 Christie Mar. 18, 1919 1,350,992 Downie Aug. 24, 1920 2,143,111 Hayes Jan. 10, 1939 2,375,264 Wagner et al May 8, 1945 FOREIGN PATENTS Number Country Date 168,181 Switzerland Mar. 31, 1934

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