US1536744A - Tire lock - Google Patents

Description

May 5, 1925. 1,536,744

M. E. ANDERSON TIRE LOCK Filed April l0, 1924 Patented May 5, 1925.

MARTIN E. ANDERSON, 0F DENVER, COLORADO.

TIRE LOCK.

Application led April 10, 1924. `Serial No. 705,431.

To all whom t may camera.' Y

Be iitknown that l, MARTIN ANDERSON, a citizen ofthe United States, residing at Denver, the city and county of Denver, and .State of Colorado, have invented certain new and 'useful Improvements in Tire Looks; and Ido declare fthe oilowingfto be a full, clear, and exact description of vthe invention, such as will enable others skilled in .the art .to which it appertains to make and -use ythe same, yreference being `had to :the accompanying drawings, and to the icharacters Vof reference `marked thereon, `Which form a `part .of thisspecilication.

rllhis invention `relates lto improvements xin locks for automobile tires, o1 the itype de- .sonibed and claimed by me in any application, Serial No. 622,679, `filed November 3, 1923.

The object fof Ithis invention iis to Iproduce fa lock that can be readily applied to and removed from a ythreaded .member such as a bolt or valve stem, but which, when .in lplace, can be removed, if at all, only with great difficulty, unless the proper key is employed.

My ,invention can be 'best described and will 7be most 4readily understood when .refference is lhad to :the accompanying `drawing :in `W-laich the preferred .embodiment Vthereof .is Shown, and in which:

Eig. l |'is a `section taken on laine l1 1, Fig. V3, with the key Jremoved;

Fig. 2 is a section similar to that shown infF'ig. lan'dshovvs-thefkeyfin place 'and the lock'in positionfto be appliedtoor removed from a Ythreaded fmember;

lFig. 3 is a section .taken .on .line 8 3, 1F ig. @2;

Fig. 4 fis -a top plan yvievv of the locking nut;

Fig. 5 -is a side-elevation ofgthe nut shown in Fig. 4i;

F ig. fshoWs my -lock in `place on a `.vail-,Ve stem for the purpose fof .locking avdemountable rim in .placeg Fig. 7-ishowsrmy Alook used .for.locking two @members together;

Eig. 8 vshowsaibolt to .which my lock is zapplied.; and

Figs. .9.and ,.10 areaiplan view and aside elevation, .respeCtively,-of a-modili'ed form ofdefermed nut.

.My lock iQQRsiSts @of a .c ,lindrical member 1I provided with an [en argedv cylindrical ehainb'er :2715er the ireoeption off @the ylooking Vnut 3, and washer 4. .Qneend .of-.the charnedges thereof. The other end of the chamber 2 is closed by the Wall 8 that is provided Ywith a threaded opening 9. The nut f3 Vis somewhat smaller in diameter lthan the chamber 2 and `has a central opening fthreaded Yor engagement With a bolt l0 or a Vvalve stem 11. The nut is cut on one side, asindicated by numeral 12, and bent into-helical form in the manner shown Ain Fig. 15. The cut 12 is made .after the ,opening has ,been vthreaded and the nut-is dient atter the cut is made. It is thereforeevi'dent that When .the nutis held in the yposition shown in Fig. .2, the threads will assume their normal re- ',lation, but if yit is left free, it Will `tend ,to assume the shape Ashown in Figs. .1 and .5. The Washer 4 rests upon Athe nutv between it andthe Wall Sifso that the nut cannotbe engaged by a sharp tool When Athe lock is in l.place von abolt. Mykeyeonsists of ya .tube 13 having an inside diameter slightly greater than the root diameterofithe threads in the nut, so that it can beslipped over .any bolt to which the lock may beapplied. @ne end 7 of vthe key is threaded, as .indicated at 14, so as ,tof engage Athe thllads ',in the opening V9. The actionof thekeyis'toclamp the nut againstthe end ,member 5 Withsuicient force to cause it to assume its ori inal shape in the manner shown in gFig. 2. rhen -the key vis in place and the nut clamped'in the position shown in'rFig. 2, the lock vmay be threaded onto* a bolt or removed therefrom in `the same manner as any ordinary nut. Instead of makingthenut in theimanner described it may be formedas shown in Figs. 9 and 10, Whichshovv a vnut cut ipartly across, as indicated by `12a. The cutis made after the nut is .threaded and the :sides are then spread apart as shown.

Let ,us now l,suppose a .case in which the lock has been screwed .onto a ibolt and `the Vkey removed. The nut, which-must beqmade of some resilient material, .Will tendzfo assume the distorted lshape .shown in 1 .and 5. This Will cause it fto bind the bolt. If qmember llis rotated, vit will Arnot rotate the nut, as the ,ffiliction between the bolt and -the nut vis greater than any Ifriction tthat can be developed between thlirut and its enelosing loasimgr. ,I @he ,lok .fean iii-rererqrenet- ,be removed frein thetult whe key 13 is inserted and screwed down with sufficient force to flatten the nut and to remove the tension that causes it to bind on the bolt.

If an unauthorized person should attempt to pick the lock by inserting a sharp instrument between the bolt and the sides of hole 9, he will merely engage the washer 4, which is freely rotatable. By making the threads in hole 9 and on the end of the key 13 different and .some right and others left, a large num er of combinations can be obtained, which would make it highly improb able that an unauthorized person will aca cidentally obtain a key that will open the lock. The threads, moreover, may be made special so that no stock taps or dies can be found to cut a proper thread on the key and .in this manner a very safe lock can be produced.

In Fig. 6 I have shown my lock in place on a valve stem 11, which passes through the demountable rim 15 and felloe 16 of an automobile wheel. The ordinary nut 17 and dust cap 18 can be used in the usual manner.

In Fig. 7 I have shown my lock applied to a bolt 10 that can be used for any purpose, such as clamping two members 19 and 20. An ordinary nut 21 can be applied to the bolt to produce the desired clamping action. In Fig. SI have shown a bolt that may be used for any purpose. The bolt has a cotter pin 22 that positively prevents loss of the nut 21.

My invention depends primarily on the use of a deformed nut that will bind on a threaded 'bolt and which is enclosed and freely rotatable in a casing. The casing isv so constructed that a key may be associated therewith for the purpose of clamping the nut so as to hold it non-rotatably in normal. Shape. I am aware that the nut may be deformed in other ways than that shown, and I desire to cover broadly the use of a deformed nut in combination with the other parts shown. l

Having now described my invention, what I claim as new is:

.1. locking device comprising, in combination, a casing having a cylindrical cham- .ber, said chamber being provided with a top and a bottom, each of which has an axial opening .of less diameter than the chamber, the opening in the top being threaded, a nut wlthin said chamber, said nut being freely movable therein, and of greater diameter than the opening and a tubular threaded member operatively related to the top and adapted to force the nut against the bottom and to clamp it against rotation.

2. locking device comprising, in com* bination, a casing having a cylindrical chamber, said chamber being provided with a top and a bottom, each of which has an axial opening of less diameter than the chamber,

the opening in the top being threaded and adapted to receive a threaded clamping member, a nut within said chamber, a clamping member operatively associated with the threads of the opening, and a washer between the nut and the top, said casing, nut and washer being freely movable with respect to each other, the nut and washers being of greater diameter than the openings. Y

3. A locking device comprising, in combination, a casing having a cylindrical chamber, said chamber being provided with a top and a bottom, each of which has an axial opening of less diameter than the chamber, the opening in the top being threaded, a nut within said chamber, a washer between the nut and the top, said nut and washer being freely movable with respect to each other and the casing, the nut and washer being of greater diameter than the openings, and a tubular clamping member operatively associated with the threaded opening in the top and adapted to force the nut against the inner surface of the bottom so as to clamp the nutagainst rotation.

4. A locking device comprising a tubular member provided with a cylindrical opening, one end of said opening being of smaller diameter than the other end whereby a shoulder is formed, a circular nut rotatablv mounted in the larger end of said opening; a washer between the nut and the shoulder, means for preventing the nut from being removed from the opening, and means for clamping said nut against relative rotation with'respect to the tubular member, said means comprising a tubular key having a threaded connection with the interior of that portion of the cylindrical opening having the smaller diameter, said key being adapted to engage the nut and clamp the ame against rotation in the tubular mem- 5. In a locking rdevice adapted to be turned entirely onto a threaded stem, in combination, a casing having a chamber, a nut freely rotatable within said chamber, said casing having an abutment, forengaging the nut to limit its longitudinal movement with respect to the casing, and a tubular key member adapted to be fitted over the threaded stem, said key and casing having threaded engagement with each other, said key being adapted to engage the nut and to force it against the abutment to hold it against rotation with respect to the casing.

6. A lock comprising an. externally threaded member, a deformed nut coopera-e tively connected thereto, a casing for enclos-`- ing said nut, said nut and casing being 125 freely rotatable with respect to each other, and means for causing said nut to assume its normal shape and for clamping it against rotation within said casing. f

7. A lock adapted to be securedeto`the 130 threaded end of a bolt, said lock comprising a casing, a nut freely rotatable in said casing, said nut having its threaded surface deformed so as to clamp itself onto the threaded surface of a bolt, and means comprising a tubular member for causing the nut to assume normal shape and for clamping it to the casing.

8. A lock comprising a casing having a cylindrical chamber, a circular nut freely rotatable within said chamber, said nut being deformed, and means for changing the nut to normal shape and clamping it against rotation with respect to the casing, said means comprising a tube adapted to have threaded connection with the casing and to clamp the nut therein.

9. A lock comprising, in combination, a body member having an enlarged cylindrical chamber', one end of said chamber having an internally threaded opening and the other end having an unthreaded opening, said openings being of less diameter than the chamber, a circular nut within said chamber, said nut having a cut through its side and having the adjacent ends distorted, a washer between the nut and the end having the threaded opening, and means for forcing said nut against the end of the chamber having the unthreaded opening so as to change it to normal shape and clamp it against rotation.

10. A lock comprising, in combination, a body member having an enlarged cylindrical chamber, one end of said chamber having an internally threaded opening and the other end having an unthreaded opening. said openings being of less diameter than the chamber, a circular nut within said chamber, said nut having a cut through its side and having the adjacent ends distorted, a washer between the nut and the end having the threaded opening, and means for forcing said nut against the end of the chamber having the unthreaded opening, so as to change it to normal shape and clamp it against rotation, said means comprising a tubular key having its outer surface provided with threads for engaging the sides of the threaded opening.

11. A locking device comprising a member provided with a c vlindrical opening, one end of said opening being of smaller diameter than the other end, whereby a shoulder is formed, a cylindrical distorted nut rotatably mounted in the larger part of said opening, a freely movable washer between the nut and the shoulder, means secured to said member for preventing the nut from being removed from said opening, and means for causing the nutl to assume normal shape and for clamping it against relative rotation with respect to said member.

12. A locking device comprising a member provided with a cylindrical opening, one end of said opening being of smaller diameter than the other end, whereby a shoulder is formed, a cylindrical distorted nut rotatably mounted in the larger part of said opening, a freely rotatable washer between the nut and the shoulder, means secured to said member for preventing the nut from being removed from said opening, and means for causing the nut to assume normal shape and for clamping it against relative rotation with respect to said member, said means comprising a tubular key having a threaded connection with the interior ot' that portion of the opening having the smaller diameter.

13. A locking device comprising a casing having a cylindrical opening, one end of sai-d casing having a transverse wall member provided with a threaded opening of less diameter than the chamber, the other end of said casing having a rabbet, a washer having its edge located in said rabbet, a portion of the metal of the casing extending over the edge of the washer so as to hold it in place, a nut rotatably mounted in said chamber, a freely movable washer between the nut and the transverse wall, sai-d nut and washer being of greater diameter than the openings, and means for clamping the nut against rotation.

14. A locking device comprising, in combination, a casing having a chamber, said chamber being provided with a top and a bottom, said top and bottom each having an opening, which is substantially concentric with the opening in the other, said openings being of less diameter than the corresponding dimension of the chamber, the opening in the top member being threaded for the reception of a threaded clamping member, a nut freely movable within the chamber, said nut being of greater diameter than the openings, and means comprising a threaded member for clamping the nut against rotation.

YIn testimony whereof I aix my signature.

MARTIN E. ANDERSON.

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