US809030A - Turnbuckle. - Google Patents

Description

PATENTED JAN. 2, 1906. J. A. STEINMETZ.

TURNBUGKLE.

APPLICATION FILED JUNE 6. 1904.

UNITED STATES PATENT OFFICE.

JOSEPH A. STEINMETZ, OF PHILADELPHIA, PENNSYLVANIA.

T U R N B U C K L E Specification of Letters Patent.

Patented Jan. 2, 1906.

Application filed June 6, 1904. Serial No, 211,262.

To all whom it may concern.-

Figure 1 represents, chiefly in vertical longitudinal section, a turnbuckle embodying my invention. Fig. 2 represents a top plan view of the same, partly broken away and before the parts are assembled. Fig. 3 represents, partly in elevation, partly in vertical section, a modified form of my device. Fig. 4 repre sents a top plan view, partly broken away and before assembling, of the form of device shown in Fig. 3. Fig. 5 represents, partly in eleva tion, partly in vertical section, a further modification.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to Figs. 1 and 2 of the drawings, 1 and 2 designate the rod-receiving portions of my turnbuckle comprising tubular parts 3 and at and integral threaded ends 5 and 6, shown as having polygonal wrench-engaging heads 7 and 8. Between the parts 1 and 2 is interposed an apertured member, which in the drawings is shown as a middle section or eye 9, consisting of an annular portion 10 and laterally-extending trunnions 11. The method of assembling the parts is clearly shown by reference to Fig. 1. The trunnions 11 of the central eye 9 are of a diameter to fit snugly within the ends of the tubular portions 3 and 4, as shown at the left of the drawing Fig. 1. The parts are then subjected to a welding heat, by which they are firmly united and made practically integral, as shown at the right of that figure.

In the device shown in Figs. 3 and 1 of the drawings the trunnions 11 of the eye 9 are formed with recesses 12, leaving a wall 13 of substantially the thickness of the walls of the tubular portions 3 and 4. The end of the wall 13 is then abutted-a g., against the end of the wall 3, as shown at the left of Fig. 3- and the two united by the process of electric welding. By forming the recesses 12 as shown, so that the abutting walls are substantially the same in thickness, they interpose an equal resistance to the passage of the current, so that a perfect weld is secured, as shown at the right of the figure.

In Fig. 5 I have shown the trunnions 11 of the eye 9 as having external threads 14, adapted to engage in a corresponding integral thread 15 in the ends of the tube 3 and 1. A pin 16 is driven through the wall of the tube and through the trunnion 11 after the parts are secured together, as clearly shown in the drawings. As commonly made turnbuckles have consisted of an open-link portion having internally-threaded ends in which the threaded ends of the rods engaged. The ends of the rods which projected into the open-link portion of the turnbuckle were thus exposed to the weather and speedily rusted. A later form of turnbuckle consists of a tube having contracted internally-threaded ends. The tubular portion of this device protects the tierods from rusting, but does not form convenient means for tightening the buckles on the rods. My present device affords protection to the ends of the rods and at the same time the eye 9 is adapted to receive a stick, bar, or the like by which the buckle can be tightened. This is of particular advantage in car or bridge construction where tie-rods are subjected to constant vibration, so that the turnbuckles tend to work loose. An inspector or other workman is saved the necessity of carrying a wrench, as he can use any bar or pin to tighten the turnbuckle just as easily as with the old device.

It is evident that I intend the term eye or annular portion to include any open or link-shaped part in which a bar or the like may be inserted.

I have illustrated difl'erent forms of my device and difl'erent methods of its construction to show that I do not purpose to be limited to a particular form or method, as it is evident that various changes may be made by those skilled in the art which will come within the scope of my invention, and I do not, therefore, desire to be limited in every instance to the exact construction herein shown and described. Thus, 6. 9., it is clear that the tubular portions 3 and 4 of the device may be I welded electrically or otherwise to the threaded rod-engaging ends as well as to the central eye.

IIO

tions, means at the outer ends of said tubular portions for engaging With the rods and an apertured member intermediate said tubular portions, the ends of the latter adjacent said member being closed.

JOSEPH A. STEINMETZ.

Witnesses:

JOHN A. WIEDERSHEIM, GEO. L. COOPER.

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