US704633A - Nut-lock. - Google Patents

Description

No. imma. Patented luly l5, |902.

A. GRUMME.

NUT Lock.

(Application led July 1, 1901.) l

August Giumme PATENT OFFICE.

AUGUST GRUMME, O F

ST. LOUIS, MISSOURI.

'NUT-LOCK.

SPECIFICATION forming part of Letters Patent N o. 704,633, dated July 15, 1902. Application filed 'July 1,1901. Serial No. 63,644. (No model.)

To @ZZ whom t may concern,.-

Beit known that I, AUGUST GRUMME, a citizen of the United States, residing at the city of St. Louis, in the State of Missouri, have in-A vented a certain new and useful Nut-Lock, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawingsorming part of this specification.

The object of my invention is to simplify and improve the construction of nut and bolt locks and to make their action more reliable.

My invention consists in part in the combination, with a sh-plate provided with a rib, of an externally-threaded member, an internally-threaded member, and a locking-plate provided with a recess for receiving one of said threaded members to prevent its rotation, said locking-plate being adapted to be bent into locking engagement with said rib. My invention alsorconsists in certain other novel features and details of construction, all of which are described in the following speciication and pointed out in the claims affixed hereto.

In the accompanying drawings, which illustrate a nut-lock made in accordance with my invention, Figure 1 is an isometric projection oi' a portion oi" two rails with my nutlock applied thereto. Fig. 2 is a cross-section of the part shown in Fig. 1. Figs. 3 and 4 are a side and front View, respectively, of the lockingplate; and Fig. 5 is a View similar to Fig. 2 but showing a slight modication.

Like marks of reference refer to similar parts in the several views of the drawings.

10 represents sections of the rails of an ordinary railway-track. The rails 10 rest on ties 11 in the usual manner. The ends of the rails 10 are secured together by means o1' fishplates 12 and 13, which bear against the web 14 of the rails 10. Passing through the web la and sh- plates 12 and 13 are a number of bolts 15. The rounded heads 16 of the bolts 15 are provided with square portions 17, Fig. 2, which enter suitable recesses in the iishplate 12, and thus prevent the bolts 15 from rotating. Each of the bolts 15 is provided with a nut 18. In order to prevent the rotation of the nuts 18, I provide a locking-plate 19, in the center of which is formed an opening 2O for the passage of one of the bolts 15. Around the opening 2O is a recess 21, adapted to receive a portion of one of the nuts 18. Each ofthe locking-plates 19 is provided with two wings 22, preferably of less thickness than the body of the plate 19. These wings 22 are adapted to `be bent into locking contact with the fish-plate 13. In order to accomplish this, it will usually be necessary to provide the said fish-plate 13 with a rib 23. around which the wings 22 may be bent. I prefer to make the outer portion of this rib 23 slightly wider than its innerportion, so that the Wings 22 may secure a firmer hold on theV said rib.

In Fig. 5 Ihave shownaslight modification, wherein the locking-plates 19 are applied to the bolts 15 in place of the nuts 18. In this construction the nuts 18 are placed in the re cesses of the sh-plates 12, so as to prevent their rotation, and the bolts 15 are provided with square heads 24 in place of the rounded heads 16. These square heads 24 fit in the recesses 21 of the locking-plates 19, so that when the wings 22 are bent around the rib 23 the bolts 15 will be locked against rotation.

In using my nut-lock the locking-plates 19 are in the form shown in Figs. 3 and 4. When the nut is to be applied to the bolt, the locking-plates 19 are slipped over the bolts 15 and the nuts 18 screwed on said bolts. As soon as the nuts comeclose to the fish-plate 13 they will enter the recesses 21in the locking-plates and the said locking-plates will turn with the nuts 18 until they are tight. The Wings 22 are then bent around the rib 23 and the nuts 18 thus effectually prevented from rotating. In the modification shown in Fig. 5 the operation is the same except that the locking-plates turn with the bolts 15 in place ot with the nuts. Y

I am aware that nut-locks have been heretofore constructed in which a washer provided with a pair of ribs extending into grooves on the inner face of the nut has been," bent so as to make locking contact with the fish-plate of a rail, and hence do not claim such con struction.

Having fully described my invention, what edge bent into engagement with the face of said fish-plate.

2. In a nut-lock, the combination with a sh-plate, of a rib carried by said fish-plate and forming an acute angle with the face thereof, a bolt passing through an opening in said fish-plate, a nut for said bolt, a lockingplate provided with a recess to receive said nut, and a Wing carried by said locking-plate and adapted to have its face bent into engagement with the edge of said rib and its edge bent into engagement with the face of said fish-plate.

In testimony whereof I have hereunto set my hand and affixed my seal in the presence of the two subscribing Witnesses AUGUST GRUMME.

Witnesses:

JAMES H. BRYsoN, JEssIE R. WATKINS.

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