US236092A - Nut-lock - Google Patents US236092A - Nut-lock - Google Patents Nut-lock Info Publication number US236092A US236092A US236092DA US236092A US 236092 A US236092 A US 236092A US 236092D A US236092D A US 236092DA US 236092 A US236092 A US 236092A Authority US United States Prior art keywords plate nuts nut locking lock Prior art date 1880-12-28 Legal status (The legal status is an assumption and is not a legal conclusion. (No ModelJ J. ROSENST-EEL Nut Look. Patented Dec. IQ, UNITED STATES PATENT OFFICE.

ROSENSTEEL, OF WEST BELLEVUE BOROUGH, PENNSYLVANIA. SPECIFICATION forming part of Letters Patent No. 236,092, dated December 28, 1880. Application filed April 3, 1880.

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T 0 all whom it may concern Be it known that I, JACOB S. RosENsTEEL, of West Bellevue Borough, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in N lit-Locks; and 1 do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanyin g drawings, forming apart of this specification, in which Figure 1 is a perspective view of my improved nut-lock. 2 is a side view of the same applied to a rail-joint, and Fig.3 is a cross-section on the line as m, Fig. Like letters of reference indicate like parts in each. Y My invention relates to devices for looking or securely fastening the nuts used with bolts on railroads, bridges, machinery, and all other places where the jarring or vibration to which the nut and bolt are subjected is liable to gradually unscrew the nut. The danger arising from this source because of the consequent loosening and weakening or severing and separating of the connection fastened by the bolts and nuts has led many to seek some means of so looking and securely fastening the nuts on the bolts that they will not be unscrewed by the jarring of the machinery or structure of which they form a part.

The object of my invention is to improve the construction of the nut-lock heretofore formed, in which a locking-plate is hinged to a perforated attaching-plate secured below two adjacent nuts, and fits down between the nuts, so as to adapt it more perfectly for use. It consists in forming in the sides of the hinged locking-plate angular recesses, which are elongated so as to fit down over the nuts when they are turned diagonally to the length of the locking-plate. To enable others skilled in the art to make and use my invention, I will describe its construction and operation. My invention is illustrated as applied to the joint of two railroad-rails, it being used on bridges, machinery, &c., in practically the same manner. In the drawings, A A are the rails, B the fish-bars, O the bolts, and D the nuts, all of which are of the usual construction, the necks (No model.) of the bolts being made oblong to prevent their turning.

My improved locking device is formed of two plates, E F, hinged together at the top f. The long plate E has two bolt-holes, 6, formed therein, one at each end, and is of such length that the bolt-holes 0 will fit over the adjacent bolts 0, with which it is to be used. When there is a very long space between the bolts, as is often found in bridges, part of the metal in the center of the plate may be cut away, so as to lighten it and reduce its cost.