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Publication numberUS657256 A
Publication typeGrant
Publication dateSep 4, 1900
Filing dateFeb 2, 1900
Priority dateFeb 2, 1900
Publication numberUS 657256 A, US 657256A, US-A-657256, US657256 A, US657256A
InventorsCharles M Tipton
Original AssigneeCharles M Tipton
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Nut and bolt lock.
US 657256 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

No. 657,256. Patented Sept. 4, I900.





SPECIFICATION forming 5m of Letters Patent No. 657,256, dated se temta' 4, 1 900.

Application filed February 2, 1900, Serial No. 3,748. (No model.)

To all whom it may concern:

Be it known that 1, CHARLES M. TIPTON, a citizen of the United States, residing at Rapidan, in the county of Oulpeper and State of Virginia, have invented certain new and useful Improvements in Nut and Bolt Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Thisinvention relates to nutand bolt locks, and in common with this class of devices aims to secure the nut and the bolt against relative casual displacement after the nut has been turned up tight against the object to be secured or fastened.

The improvement consists, primarily, of a nut having a transverse key-seat intersecting with the bolt-opening and a key to interlock with the bolt and key-seat of the nut and having a cleft-terminal, which is spread or oppositely deflected when driving the key home, so as to prevent its accidental displacement, the nut having at the remote end of the key-seat a spreader in position to engage with the cleft-terminal of the key and effect a spreading of the cleft members, so as to effect the desired result.

The improvement also consists in having the receiving end of the key-seat of the nut of wedge form or similar construction to interlock positively with the keyand in having the opposite or remote end of the key-seat formed with divergent openings or passages separated by the spreader, which is located medially of the key-seat, so as to register with the cleft in the penetrating end portion of the key.

The improvement further consists of a key having its entrance end cleft, said cleft being flared to direct the spreader into the cleft when driving the key home, said key having its opposite end ofapproximately wedge form and provided with an oifstanding portion to receive the blows of a hammer or like tool when it is required to remove the key.

For a full description of the invention and the merits thereof, and also to acquire a knowhedge of the details of construction of the means for effecting the result, reference is to be had to the following description and the drawings hereto attached.

While the essential and characteristic features of the invention are necessarily susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in Wl1lGl1- Figure 1 is a perspective view showing the application of the invention. Fig. 2 is asection at a right angle to the axis of the bolt. Fig. 3 is a side elevation looking toward the endof the key having the wedge-shaped portion. Fig. 4 is a detail perspective view of the key. Fig. 5 is a detail perspective view of the end portion of the bolt.

Corresponding and like parts are referred to in the following description and are indicatedin all the views of the drawings by the same reference characters.

The bolt 1 and nut 2 may be of any pattern, size, or make, according to the desired location and character of work. A groove or seat 3 is formed in the end of the bolt 1 and extends transversely thereof and may be of any required depth. The nut 2 is provided with a transverse key-seat 4 in position to register with the groove or key-seat of the bolt. The key 5 is fitted into the seats 3 and 4 when in coincident relation and after the not 2 has been turned up tight upon the bolt. In the event of the bolt being loose when the nut has received the final turn it will be necessary to inter-pose one'or more washers of re- .quired thickness between the nut and the object to be secured, and the requisite thickness of washer Will be determined by trial.

The groove or key-seat 4 intersects with the bolt opening of the nut 2 and opens through the outer face of the nut at one end and is made of Wedge form or otherwise constructed at said end to make positive interlocking connection with the key when the latter has been properly positioned. The opposite end portion of the key-seat 4 terminates in divergent openings or passages 6, separated by a cross-piece 7,which constitutes a spreader, the opposite side of said crosspiece or spreader being beveled to an edge,

which faces toward the seat 4, so as to enter the cleft at the of the key 5.

penetrating or entranceend The key 5 has an end portion cleft, as shown'at8, and the outer end of thecleft is. flared, asshown at 9', to admit'of the-spreader -7 readily entering the cleft 8 when driving the key 5 home. This cleft end 8 is reduced and is located at the terminalof the key which is first introduced into the seat 4: and which is designated as the entrance orpenetrating end. The opposite end of the key is of wedge form, as shown as 10, to interlock with the corresponding end of the seat 4 and is also provided with an offstanding portion instrument when it is required to-dislodge the key 5, so as to admit of the loosening of the nut when the bolt is required to be removed.

The nut and bolt are used'in the well-known manner, it being necessary to have the seats cause the portions adjacent to the cleft to be oppositely deflected and hold the key in place against accidental slipping.

It is to be understood that one or more washers (not shown) are to be interposed be tween the nut and the object to to befastcned in the event of a space existing between said parts after the nut has been screwed home to the proper position.

Having thus described the invention, what .is claimed as new, and desired to be secured .by Letters Patent, is-- 1'. In a nut and bolt lock,- a nut havinga transverse key-seat intersectingwith the bolt opening and provided at one end with a spreader,,and a key adapted to be fitted into saidseat and having a terminal portion cleft andconstructcd to bespread by engagement with the said spreader when driving the key home, substantially as set forth.

key being adapted to be forced into the keyseat and to have-the cleft portions spread by entering the divergent passages of the keyseat, substantially as set forth.

3. In a nut and bolt lock, a'nut having a transverse key-seat undercut at one end and divergent at the opposite end, a spreader at said divergent end of the key-seat, and a key having one end of approximately wedge form and its opposite end cleft and adapted to be separated by engagement with the spreader,

I substantially as set forth. 11 to receive the blows of ahammer or other i 4. Ina nut and bolt look, a nut having a transversely-disposed key-seat intersecting withthe bolt-opening, one end of the seat ter minating in divergent passages and the oppo site end being of approximately wedge form and opening through the outer face of the nut, and a key havinga terminal portion cleft and having its opposite end portion of approximately wedge form and provided with lan offstanding port-ion, substantially as set forth.

5. In anut and bolt lock, a nut having a ftransversely-arranged key-seat intersecting lwith the bolt-opening, and provided at one end with'divergent passages and at its oppo- Qsite end with: awedge-shaped portion, and a key having an end portion reduced and cleft, ,the outer end of the cleft being flared, and having the opposite end of the key construct- .ed of wedge form and provided with an off- 1 standing portion, substantially as and for the Qpurposeset forth.

6. In. combination with a bolt having a groove-or seat in its threaded end, a nut hav- 1 ing atransverse key-seat to register with the groove of the nut, one end of the seat being 'divergentand provided with a spreader, and a key adapted to be fitted into the registeriingseats of the bolt and nut and having a Icleft terminal port-ion, substantially as and:

for the purpose set forth.

In testimony whereof I affix my signature Qiu presence of two witnesses.

2. In a nutand bolt look, a nut, having a transversely-disposed key-seat intersecting with the bolt-opening and having an end portion. terminating in divergent passages, and i a key having a terminal portion cleft, said CHARLES M. TIPTON.

LL. s]

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2755117 *Jun 25, 1951Jul 17, 1956Kearney & Trecker CorpMachine tool spindles
US4257409 *Apr 9, 1979Mar 24, 1981Kazimierz BacalDevice for treatment of spinal curvature
US4904145 *Oct 31, 1986Feb 27, 1990Theodore KoutsoupidisStud with an adapted head
US20070059121 *Sep 13, 2005Mar 15, 2007Chien Chuan HFastener having disengageable head
Cooperative ClassificationY10S411/945, F16B39/04