US895583A - Swivel or attachment for transom-lifters, &c. - Google Patents

Description

PATENTED AUG. 11

APPLICATION FILED NOV. 4, 1907.

' v UNITED STATES PATENT OFFICE.

WILLIAM F. OROURKE, OF CHICAGO, ILLINOIS, ASSIGNOR TO PAYSON MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SWIVEL 0R ATTACHMENT FOR TRANSOM-LIFTERS, &c.

To all whom it may concern:

Be it known that I, l/VLLLIAM F. OROURKE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Swivels or Attachments for Transom-Lifters, &c. of which the following is a full, clear, concise, and exact description.

My invention relates to swivels, and more particularly to swivels used in connection with transom lifters.

Its object is to provide a connecting socket piece which is cheap to manufacture and of simple construction, for uniting two rods at right angles to each other to form what is ordinarily known as a T-joint, each of the rods being swiveled in a socket in the swivel or connecting member of the T-joint.

In ordinary transom lifters the angular rod secured to the transom is connected to the brace rod of the lifter by a T-joint, each of said rods being, for urposes well understood, swiveled in sec zets of the T-shaped connecting member. Such connecting member has heretofore commonly been in the form of a casting.

My invention consists in a swivel or T- shaped connecting member formed of a sheet metal blank or stam ing bent upon itself to form a socket about t e middle portion of the blank, the two ends of the blank being formed into a split tube inclosing the other socket of the connecting member, and said ends being held together by a band or ferrule also preferably formed of a stamping.

The several features of my invention may be more readily understood by reference to the accompanying drawings, in which Figure 1 is a front elevation of a transom lifter showing the application of the swivel of my invention; Fig. 2 is an end viewof said transom lifter; Fig. 3 is a sectional view of the swivel member, showing two rods swiveled at a right angle to each other; Fig. 4 is a section on the line 44 of Fig. 3; Fig 5 is a perspective view of the blank from which the T-shaped member is formed; Fig. 6 is an end elevation of the T-sha ed member into which the blank is bent, s owing how said member is secured upon the end of the brace rod; and Figs. 7 and 8 are views of a blank and a ferrule or retaining band formed therefrom, respectively.

Specification of Letters Patent.

Application filed November 4, 1907.

Patented Aug. 11, 1908.

Serial No. 400,432.

Similar letters of reference are used to designate similar parts Wherever they are shown.

The type of transom lifter in connection with which I have shown my invention is of well-known construction, consisting of a lift rod 1, a brace rod 2 pivoted at its lower end to said lift rod and connected at its upper end to the horizontal angular rod 3 which is designed to be connected to the frame of the transom. The connection between the rods 2 and 3 is in the form of -a T-joint, the connecting member or swivel 4 having a horizontally extending socket in which the rod 3 is swiveled and a socket erpendicular thereto in which the rod 2 is ikewise swiveled.

The swivel 4 of my invention is formed from a rectangular blank 5 of sheet metal,

(see Fig. 5) which is bent in a loop upon itself, the bend or loop 6 forming a socket for the end of the rod 3. Each end of the blank is bent or curved toward the other in a direction at right angles to the bend 6, each end being thus semi-cylindrical, and together forming a tubular stem 7, constituting a soaket piece for the upper end of the brace r0 2.

As shown in Figs. 3 and 4, the rod 3 has a circumferential groove 8 around its outer end,

and the loop or bend 6 is indented to form atongue 9 which enters said groove, thus preventing the withdrawal of the rod 3 but permitting its turning in its socket. Likewise the brace rod 2 has in its upper end a circumferential groove 10, and the stem 7 is indented about its circumference to form an annular .tongue 11 which enters the groove 10. A retaining band or ferrule 12 surrounds the lower end of the stem 7 and prevents the tube from spreading apart. Said ferrule may be conveniently formed from acircular blank 13 of sheet metal (see Fig. 7) by cutting out a circular hole in its central portion of a size to receive the rod 2 and shaping the blank into a ferrule such as is shown 1n Fig. 8. When the ferrule 12 is slipped in place about the stem 7, ears 14 are unched up from the rod 2 to hold said ferru e in position.

I claim:

1. The combination with two rods, of a swivel for connecting said rods at right angles to each other, said swivel comprising a sheet metal band bent at its middle ortion to form a socket iece for one of said rods and having each 0 its ends bent into a semicylindrical shape to form a split tubular socket piece for one end of the other rod, and a tongue and groove swivel connection between each rod and its corresponding socket piece, said tongue being integral with the member which is provided with the same.

2. The combination with two rods, each having a circumferential groove in its end, of a swivel for uniting said rods at right angles to each other, said swivel comprising a sheet metal band bent at its middle portion to form a socket piece for one of said rods and having each of its ends bent into a semicylindrical shape to form a split tubular socket piece for one end of the other rod, and tongues extending from said socket pieces into said circumferential grooves to form swivel joints between said rods and said swivel.

3. In a T-joint, the combination with two rods each having a circumferential groove in its end, of a swivel for uniting said ends of the rods at right angles to each other, said swivel comprising a sheet metal band bent at its middle about one of said rods with an indented portion forming a tongue fitting in the groove of the rod and having each of its ends bent into a semi-cylindrical form about the end of said other rod, thereby forming a split tubular socket piece for said latter rod,-

rods each having a circumferential groove in its end, of a swivel for uniting said ends of the rods at right angles to each other, said swivel comprising a'sheet metal band bent at its middle about one of said rods with an indented portion forming a tongue fitting in the groove of the rod and having each of its ends bent into a semi-cylindrical form about the end of said other rod, thereby forming a split tubular socket piece for said latter rod, said tubular piece being provided with a circumferential indentation forming an annular tongue fitting in the groove of the rod, a ferrule inclosing said tubular socket piece, and ears formed in said rod for retaining said ferrule in position.

In witness whereof, I, hereunto subscribe my name this 23rd day of October A. D.,

WILLIAM F. OROURKE. Witnesses:

GEORGE E. FOLK, ALFRED II. MOORE. v

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