US753273A - Nut-lock - Google Patents

Description

PATENTE MAR. 1, 1904. N. JAMsoN.

NUT LOCK l E F Illllli 1.1.11

face of the nut.

UNITED STATES Patented March 1, 1904.

PATENT OFFICE;

' NUT-LOCK..`

SPECIFICATION forming part of Letters PatentNo. 753,273, dated'Marchrl, 1904. v

Application led February 24, 1902. Serial No. $5,306. (No model.)

To all whom t may con/cerny Be it known that I, NEHEMIAH JAtnsoN, a citizen of the United States of America, and a resident of Mansfield, county of Richland, and State of Ohio, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

This invention relates to nut-locks, and has for its object to providea simple and improved device of this character for convenient application without altering or changing the bolt in any manner whatsoever and at the same time arrange to effectively loclr the nut against accidental loosening.

It is furthermore designed to protect the locking engagement with the nut against blows from external objects and also to give convenient access to said locking engagement for facilitating the removal of the nut without damage thereto or to the bolt.

With these and other objects in view the present invention consists inthe combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure l is a sectional view of a rail-joint, showing the device of the present invention applied to one of the nuts thereof. Fig. 2 is an elevation looking at the outer Fig. 3 is a rear elevation of the nut. Fig. 5 is a detail view of a modified form of washer. Fig. 6 is a detail view of the implement for disengaging the washer from the nut. Fig. 7 is a detail view of another modied form of washer.

Like characters of reference designate corresponding parts in each and every ligure of the drawings.

Although the present device isapplicable in many relations, I have illustrated it as applied to a rail-joint, and upon reference to the drawings it will be seen that there has been shown an ordinary rail l, having the usual type ofV Fig. 4 is a detail view of the washer.

sh-plates 2 applied to opposite sides thereof, with a bolt 3 piercing the fish-plates and the web of the rail in the usual manner. of course be understood that these members form no part of the present invention, and while conventional forms have been illustrated any other preferred form may be employed without affecting the spirit of the present invention.. A

. In carrying out the present inventionIemploy anut 4, which is provided upon its back face with a reduced tubular boss or extension Y5,- disposed concentrically with the threaded bolt-opening of the nut and having a smooth cylindrical exterior. -The outer face of this boss is serrated or provided with ratchetteeth 6 for cooperation with a spring-ratchet device for locking the-nut. For cooperation with the-nut there is a washer 7, preferably a flat metallic plate having a central ,opening 8 for the reception of a bolt. At least one edge of the plate-forinstance, as indicated at 9is made straight to bear against some part of the device to which it is applied, so as to prevent turning of the plate upon the bolt. In the present instance the straight edge 9 is at the bottom of the plate and engages the i'iange of the fish-plate. However, .if desired, the upper edge of the plate may be ex.

tended into contact with the under side of the tread of the rail to accomplish the same purpose. A diametric slit l0 intersects the inner peripheral edge of the washer-plate and terminates short of the outer edge of the plate, as indicated in Figs. 4 and 5, while, as shown in Fig. 6, this slit may also intersect the outer edge of the plate. As indicated in Figs. 4 and 5, a slit l1 intersects the slit l() at substantially right angles thereto, and the material of the plate within the angle of the two slits is bent laterally outward to form a springtongue 12.

In employing the present device the washer or plate is first placed upon the bolt with the It -Will spring-tongue 12 upon the outerl face of the 95 IOO A very important advantage of the present device will here be noted by reference to Fig. 2 of the drawings, wherein it will be noted that the spring-tongue does not project beyond the periphery of the nut, and is thereby protected from blows by external objects.

For convenience in removing the nut I provide an implement in the form of a Spannerwrench (indicated at 13) and having a pair of jaws 14, adapted to straddle the nut and provided upon their inner faces with ribs 15 to embrace the boss of the nut and lie in the space between the back of the nut and the washer-plate. One of the ribs 15 is tapered to provide means for gradually forcing the tongue 12 out of engagement with the boss and into aposition iush with the washer-plate, so as to permit of the nut being backed away from the plate without interference by the tongue.

It will here be noted that although the boss 5 may be set up tight against the washer and prevent further tightening of the nut the spring-tongue 11 will still be projected in front'of the washer and can be forced back into the washer, so as to permit removal of the nut. This is avery important feature of the present invention, as it permits of the con- Venient removal of the nut no matter vhow tight it may be set up against the washer.

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, isn

1. A nut-lock embodying a nut having a concentric tubular boss upon the back thereof, the outer end of the boss being provided with ratchet-teeth, and a non-rotatable washer having a spring-tongue bent therefrom and disthe bolt-opening and another slit intersecting the radial slit, that portion of the washer in the angle between the'two slits being bent outwardly to form a spring-tongue'for engagement with the ratchet-teeth 'of the nut.

3. A nut-lock embodying a nut having a cylindrical concentric tubular boss upon the back thereof, theouter end of the boss being provided with ratchet-teeth, and a washer having one edge formed to bear againsta stationary member and prevent rotation thereof, said washer also having a bolt-opening, a substantially radial slit intersecting said opening and another slit intersecting the radial slit, that portion of the washer in the angle between the two slits being bent out to form a spring tongue for engagement with the ratchet-teeth of the nut, the spring-tongue being of a width to lie within the external periphery of the nut.

Signed at Manseld this 20th day of J anuary, 1902.

NEHEMIAH JAMISON. Witnesses:

CHARLEs H. SoRG, JAMES C. Coss.

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