US638146A - Nut-lock. - Google Patents

Description

633,|46-1 Patented Nov. 28, 1 899.- S. S. BOSZELL. NUT LOCK.

(Application filed July 11, 1899.) (No Model.)

Nrrnn STATES ATENT FFlCE.

STEPHEN S. ROSZELL, OF LEXINGTON, KENTUCKY, ASSIGNOR OF ONE-HALF TO JOHN R. ALLEN, OF SAME PLACE.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 638,146, dated November 28, 1899.

Application filed July 11, 1899. Serial No. 723,497. (No model.)

To all whom it may concern:

Be it known that I, STEPHEN S. RoszELL, a citizen of the United States, residing at Lexington, in the county of Fayette and State of Kentucky, have invented new and useful Improvements in Nut-Locks, of which the following is a specification.

My invention relates to improvements in lock-nuts, all of which will be fully described hereinafter, and particularly pointed out in the claims.

One object of my invention is to provide a nut with a short locking member projecting at right angles to its outer face a sufficient I5 distance to extend slightly across the bore of the nut when bent inward, whereby its extremity is adapted to engage the shoulder upon the bolt for holding the nut locked against coming unscrewed.

Another object of my present invention is to construct a nut so that it may be used as an ordinary nut or as a locking-nut, according to the Wishes of the user, by simply inserting or removing alocking member,which may be either in the form of a strip of sheet metal or a pliable piece of Wire, which in either event is constructed to wedge into the nut by an outward movement, thus causing the locking member to be forced into a tight 3o engagement with its opening in the nut under the tightening pressure of the latter.

In the accompanying drawings, Figure 1 is a perspective View of my preferred form of the locking device. Fig. 2 is a top plan view of the same. Fig. 3 is a longitudinal sectional view. Fig. 4 is a cross-sectional view taken throngh'the nut. Fig. 5 is a detached perspective view of the locking member. Fig.

6 is a perspective view of my lock, showing a slight modification in respect to the locking member. Fig. 7 is a longitudinal sectional view of Fig. 6. Fig. 8 is a detached perspective view of the modified locking member shown in Figs. 6 and 7.

Referring now to the drawings, A is a bolt of the usual form, and which is provided with a lockingshoulder preferably formed by a longitudinal groove a made therein. 13 is a nut, also of the usual form, and this nut has 5 in its edge one or more transverse dovetailed slots 7), into which is passed a tapered or wedgeshaped locking member O.- This locking member O is tapered outwardly, as shown, and is composed of a strip of pliable sheet metal, enabling its projecting tapered end to be bent inward, as shown in Fig. 1, with its extremity engaging the groove a in the bolt, thus serving to lock the nut against removal after it has been turned upon the bolt for clamping the parts held thereby in position. It should be noted that this locking member O is short, so that its end will extend slightly into or across the bore of the nut when it is bent downward parallel or approximately parallel to the outer face of the nut. Preferably I use two of these locking members, attached to the nut at opposite edges, and one groove in the bolt, whereby the nut can be locked at every hand revolution thereof. However, it will be readily understood that instead of having two oftheselockingdevices attached to the nutone locking device may be provided and the bolt provided with two grooves in opposite sides thereof, which will accomplish the same purpose. It will also be readily understood that one, two, three, four, or as many of these grooves may be provided as desired for the purpose of locking the nut at various degrees in its turning movement, though in practice the two locking devices or the two grooves are found sufficient. I also desire to state thatinstead of providing the bolt with grooves the-bolt may be provided with longitudinal flat portions in the place of the grooves, with which the inwardly-bent end of the locking member will engage. By means of a device of the above construction this locking member may be inserted in the nut loosely, and then the user may remove it if the nut is desired to be used as an ordinary nut without 0 any locking action or permitted to remain in position if it is desired to use the nut as a locking-nut, for the reason that owing to the fact that the locking member 0 is tightened by the engagement of the inner end with the object being clamped, thus preventing the locking memberfrom becoming removed after it is once inserted in the dovetailed groove made for its reception. It will thus be seen that this locking-nut is adapted to be used too as an ordinary nut by simply removing the locking member endwise from its retainingslot or to be used as a locking-nut by simply inserting the locking member in position in its groove, and it is there held automatically against removal by contact with the object being clamped.

In Figs. 6, 7, and 8 I show a modification in that I use a locking tapered pin, which is held in a transverse opening E in the nut, the said pin being tapered outwardly the same as the sheet-metal locking member 0, Fig. 1, so that it can be inserted from the inside of the unit, as shown in Figs. 6, 7, and S, or removed therefrom, according to whether the nut is to be used as an ordinary nut or as a lockingnut. The opening E in the nut preferably has straight sidesthat is to say, is not taperedwhile theloeking-pin D is tapered, as shown, from its outer end, so that when it is placed within the opening and forced outward by the turning of the nut against the object to be clamped it is rigidly held within the said opening bya wedging action. If desired, however, this pin can be driven into the nut before it is applied; but whether it is driven or whether it is forced. in by the engagement of its inner end with the object being clamped by the nut it is held against removal by the object clamped, as will be readily understood. The projecting end of apin is made of a length to project slightly into or across the bore of the nut the same as the locking member 0, Fig. 1, whereby it is adapted to engage the groove a in the bolt or a shoulder formed upon the bolt by flattening it, as. explained in respect to Figs. 1, 2, and 3. The construction shown in Figs. 6, 7, and 8 is also adapted, as will be readily seen, to be used as an ordinary nut or as a locking-nut by the insertion or removal of the locking-pin, as may be desired by the user. Especial attention is directed to the fact that this locking member is short and that it bends inward from the outer face of the nut and is adapted to be carried down parallel with the outer face of the nut, or approximately so, for locking the nut.

The device is very simple and cheap to construct in that the grooves shown in Fig.1 or the opening or openings shown in Figs. 6 and 7 may be formed in the nut at the same time that the bolt-opening is formed, and thus not increasing the cost of the nut, the only additional cost being the simple and cheap locking members, whether in the form of a strip of sheet metal, as shown in Fig. 1, or a tapered pin, as shown in Figs. 6, 7, and 8.

In the use of the locking device the nut may be provided with the locking members attached, if desired, and in this event the nut is simply screwed to position, and in the clamping action the locking member is forced tightly into its holding groove or opening and automatically held against removal, the outer end then being bent-inward parallel or approximately parallel to the outer face of the nut and in engagement with the lockingshoulder of the bolt. In the event that the locking member is furnished to the userseparate from the nut the user will insert the locking member into its holding groove or opening, and it may be tightly placed in position by engagement with the object clamped by the nut or may be driven into position by a slight tap with the wrench or hammer, and the clamping action will then serve to still further force the locking member endwise and wedge it tightly into its holding opening or groove. When the nut has been carried to its desired clamped position, the short projecting end of the locking member is turned downward in engagement with the lockingshoulder of the bolt.

A nut-lock of the above construction is readily and quickly removed by lifting or forcing outward the extremity of the locking member sufficiently to permit it to escape the locking-shoulder of the bolt, and this is accomplished by the insertion of any suitable device under the end of the locking member. This enables me to use the same. nut over and over again without destroying the locking action, thus producing what may be aptly termed a removable and a non-removable nut. The locking member being composed of a pliable metal, and since it is only necessary to bend it outward a very short distance to disengage the locking-shoulder of the bolt, the nut can be locked and unlocked almost indefinitely without destroying or injuring the locking member. This adaptability of my simple lock to be quickly and readily bent for locking and unlocking produces a simple and cheap nut adapted for all purposes for which a nut can be used.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a nut-lock, the combination with a screw-threaded bolt having a locking-shoulder in its threaded portion, of a nut thereon, said nut having a pliable locking member directly attached to said nut against axial movement thereon, the locking member projecting beyondthe outerface of the nut a distance sufficient to permit it to be bent in ward toward the outer face of the nut, substantially as shown with its extremity in engagement with said locking-shoulder of the bolt, substantially as described.

2. A nut-lock comprising a nut having a transverse locking member passage-way, and a locking member having an elongated ta pered portion adapted to fit and wedge within said passage-way, by longitudinal movementof the locking member, said locking member projecting beyond the outer. face of the nut a distance suflicient to permit it to be bent inward substantially as shown in engagement with a shoulder upon a bolt, substantially as described.

3. A nut-lock comprising a nut having a transverse groove in the edge thereof, and a locking member consisting of an outwardlytapered strip of sheet metal adapted to be wedged in the said groove and the projecting end adapted to be bent inward for engagement With a locking-shoulder upon a bolt, substantially as described.

4. A nut-lock comprising a nut having a transverse dovetailed groove in its edge, and a locking member consisting of an outwardlytapered strip of sheet metal having a short projecting end extending in a direction in a line with the said groove, and its projecting to end adapted to be bent inward in engagement with a looking-shoulder upon a bolt, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing Witnesses.

STEPI-IEN S. ROSZELL. Witnesses:

J. J. NELLIGAN, W. F. PONTOW.

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