US1314010A

US1314010A - Consin

Info

Publication number: US1314010A
Authority: US
Publication date: 1919-08-26
Anticipated expiration: 1936-08-26

Description

W. MITCHELL.

CARRIER 800M.

APPLICATION FILED was 13. mm.

BY Mu ATTOR EY 1,314,010. Patented Aug. 26,1919.

STATES PATENT OFFICE.

WILLIAM MITCHELL, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO MITCHELL MANU- FACTURING COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF WIS- CONSIN.

Application filed June 13, 1918.

To all whom it may concern:

Be it known that I, vvlLLlAM MITCHELL, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Carrier-Booms, of which the following is a description, reference being bad to the accompanyin drawings, which are a part of this specification.

The invention relates to booms and more particularly to the truss-work for bracing the boom.

In carrier systems, more Particularly for dairy barns, it is common practice to remove the refuse from the barn by means of a carrier running on tracks in the barn and moving on a track extending outside of the barn which track is carried by a swinging boom, the carriage being moved along the track to deposit the refuse at any point along the boom upon the refuse pile below it. Booms for this kind of work have to be light and strong so that they may be readily moved and hold the track in proper alinei'nent and the object of this invention is to provide an improved construction of boom and particularly an improved means for bracing the boom.

The invention further consist in th sevei'al features hereinafter set forth.

In the drawings:

Figure 1 is a side elevation view of the device embodying the invention, parts being broken away;

Fig. 2 is a plan view, part being broken away Fig. 3 is a section taken on the line 3-3 of Fig. 1;

Fig. 4 is a section taken on the line l-1 of Fig. 3.

In the drawings, the numeral 5 designates a support at the top of a barn door opening, 6 a track which extends into the barn and is connected to the support 5 by a hanger 7, 8 a hinge block, 9 a boom, 10 a hinge connect ing the boom to the block 9, 11 a track carried by the boom through hangers 12, 13 a hinge track section connecting the track 6 to the track 11, 14 a carrier mounted on the track 11 and movable on said track and the track 6, 15 guy wires secured to the boom and extending back or secured to the side of the barn (not shown). From the foregoing CARRIER-BOOM.

Specification of Letters Patent. Patented Aug. 26, 1919.

Serial No. 239,725.

general description it will be understood that the boom is free to swing about its hinge connection and that the hinge track connecting the barn track with the boom track permits the carrier to be moved from the barn out onto the boom track in any position of the boom.

The means for bracing the boom consists of side trusses 16, a top truss 17 and truss frames 18.

Each truss frame 18 consists of a two part coupling, the parts 19 and 20 of which are secured together by bolts 21, and tubular truss members 22 and 23 secured in sockets in said coupling. The truss member 22 is vertically disposed and the members 23 are angularly disposed so that its ends 26 are below the horizontal plane through the boom 9, that is the angle between the vertical truss member 22 and the member 23 is greater than a right angle as is also the angle between the members 23.

The top truss 17 consists of a wire cable connected at one end to the front end of the boom and at its rear end to the hinge mem ber carried by the boom, and connected to the truss members 22'of the frames 18 in each instance by a two part coupling 27, the parts of which are clamped to cable and to the member 22 by a bolt 28. An adjustable turnbuckle 29 is used for tightening up the top truss cable 17. n

The side trusses 16 each consists of a wire cable connected at their forward ends to the front end of the boom and at their rear ends to the hinge member carried by the boom. Each truss 16 is connected to each of the truss frames 18 by a clip or two part cou pling 30, the parts of which are clamped to the cable and to the side truss member 23 by a bolt 31. In each instance an adjustable turnbuckle is used for tightening up the side truss cables 16.

The tubular truss members 22 and 23 are braced by side flat brace bars 33 each connected at their upper ends to the member 22 by the bolt 28 and connected at their lower ends to the members 23 by the bolts 31.

WVith the above construction it will be noted that the boom is firmly braced asthe drawing up of the

cables

16 and 17 puts the truss members 22 and 23 under compression to thereby resist tensional strains imposed by the loaded carrier upon the boom and furthermore the inclination of the members 22 and 23 with respect to each and at angles greater than a right angle prevents buckling and the compression forces acting along these frames toward the boom tend to counter-act or balance each other and I preferably disposed the frame members so that their angular inclination with respect to each other are equal thereby neutralizing or balancing these forces about the boom.

From the foregoing description it will be noted that the boom is of light, simple yet strong and durable construction and well adapted to resist the strains imposed upon it by the loaded carrier.

WVhat I claim as my invention is: g

1. In a supporting boom for carriers, the combination of a boom, truss frames connected to the boom, each truss frame com.- prising a vertically disposed frame member and approximately equi-angularly disposed side frame members extending radially from the boom, a track suspended below the boom and between the downwardly disposed side frame members, and truss members connecting the outer portions of the side frame members to the boom.

2. In a supporting boom for carriers, the combination of a boom, truss frames connected to the boom, each truss frame comprising a vertically disposed frame member and approximately equi-angularly disposed side frame members extending radially from the boom to produce a balanced reinforcement for the boom against lateral strain in any direction, a track suspended below the boom and between the downwardly disposed side frame members, and truss members connecting the outer portions of the side frame members to the boom.

side frame members extending radially from Y the boom, a track suspended below the boom and, between the downwardly disposed side frame members, and truss members connecting the ends of the side frame members to the ends of the boom. I

4. In a supporting boom for carriers, the combination of a boom, truss frames con.- nectedto the boom, each truss frame comprising a vertically disposed frame member and approximately equi-angularly disposed side frame members extending radially from the boom, a track suspended below the boom and between the downwardly disposedside frame members, a top truss cable connected to. the ends of the boom and to the vertically disposed frame members of the truss frame,

and side truss cablesconnected to the ends of the boom and to the side frame members of the truss frame.

5. In a supporting boom for carriers, the combination of a boom, a boom block, a hinge connection between the boom and boom block, truss frames connected to the boom, each truss frame comprising a vertically disposed frame member and approximately equi-angularly disposed side frame members extending radially from the boom, a truck suspended below the boom and between thedownwardly disposed side frame members, and truss members connecting the outer portions of the side frame members to the boom. I

In testimony whereof, Iaffix my signature.

WILLIAM MITCHELL.

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

Washington, G.