US601290A - Bicycle-lock - Google Patents

Description

(No Medel.)

E.,E. TRYON.

BICYCLE LOCK.

` Ne. 601,290. l Patented Mer. 29,1998.

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UNTTED STATES PATENT muon'.

'EDWARD E. TRYON, OF EAST HARTFORD, CONNECTICUT.

BICYCLE-LOCK.

SPECIFICATION forming part of Letters Patent No. 601,290, dated March 29, 1898.

Application filed October 11, 1897. Serial No. 654,815. (No model.) I

T0 all whom t may concern:

Be it known that I, EDWARD E. TRYON, a citizen of the United States, residing in East Hartford, in the .county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Bicycle-Locks, of which the following is a specification.

This invention relates to improvements in bicycle-locks; and it has for its object the provision of a simple device of this character so constructed as to lock the steering-head of a bicycle securely to the steering-tube, said lock consisting of a minimum number of parts which 'can be quickly assembled in working position on the steering-head tube.

The main feature of my invention resides, in connection with a steering-head and a tube, in a locking-bolt carrier having screw-receiving openings, la series of screws passing through said openings and in threaded engagement with the'steering-head tube, a casing tting around said carrier, and a bolt passing through a bore in a carrier and adapted to be shot into the recess in thesteeringhead, said bolt having a cap or guard lat its outer end of vsuch size as to prevent access to the heads of the carrier-holding screws, thereby thwarting the lremoval of the lock from thev steering-'head tube of the bicycle by unauthorized persons. n

In the drawings accompanying and forming part of this specification, Figure 1 is a side elevation of the front part of a bicycle,

showing my improved lock on the steeringhead. Fig. 2` is a sectional side elevation of the steering-head, its tube, and the lock, on an enlarged scale, the bolt being illustrated in its protracted or working position to lock the steeringhead against turning. Fig. 3 is asubstantially similar view, the bolt being represented in its retracted position. Fig. 4L is a sectional plan view, the, section being taken through the steering-head and steeringhead tube in a line slightly above the lock in Fig. 2. Fig. 5 is a horizontal central section ofthe lock. Fig. 6 is a transverse section taken in'` a line passing through the center of the lock-cylinder, and Fig. 7 is an elevation of a simple form of key for actuating the lock.'

Similar characters designate like parts in all the figures of the drawings.

`.with said head.

ving position on the machine.

l3, into either one of which the inner end of the lock-bolt may be inserted to secure the head to the steering-head tube, so as to prevent the head from turning. l

My improved lock embodies as a part thereof a bolt-carrier, which :may be secured to the steering-head in any suitable manner, but which is preferably fixed thereto by holdingscrews, as 4 and 5, respectively, in threaded engagementwith the steering-head tube T and passing through openings near the inner end -of the carrier,(designated by H,) that portion of the latter which lits against the steering-head being of a shape to correspond The'lock-bolt carrier H has in diametrically opposite sides thereof the grooves or channels 6 and 7, respectively, to admit a suitable instrument for driving the two screws 4 and 5, respectively, into their seats in the tube T when the lock is placed on a machine.

The bolt-lock is designated by B, and it is longitudinally recip'rocative in the bore 8, extending entirely through the carrier, the inner end of said bolt being adapted to be projected into one orthe other of the recesses 2 and 3 in the steering-head S, and also passing through an opening or slot 9 in the tube T.

The bolt-carrier` H is surrounded by the casing or collar l0, which, when the parts are assembled, is adapted to lit against the abutment or shoulder 12 near the inner end of said bolt-carrier.

The outer end of the bolt B is provided with a cap or guard which serves to prevent access to the heads of the carrier-holding screws 4 and 5 when the parts are assembled in workguard is designated by 13, and it consists in the present case of a disk which may be formed integral with the bolt B, and its diameter is approximately equal to that of the casing or sleeve'lO, and it will be apparent on an in- This cap or IOO spcction of the drawings that when the lock parts are assembled it is impossible to introduce a screw-driver or other tool in the grooves G and 7 for the pu rpose of removing the screws.

The bolt-lock l) is preferably thrown into or out of the steering-head recesses 2 and 3 by a key-operated cylinder, as C, situated for rotation in a transverse opening 11 in the bolt-carrier ll, and said cylinder is connected with the bolt by a joint eccentric to the axis of rotation of the cylinder, so that when the cylinder is manipulated by a key the bolt may be shot into or out of the keeper-recesses in the steering-head in accordance with the direction in which said cylinder may be turned.

The lock-operating cylinder C consists in the present case of two superposed parts 15 and 1G, respectively, independently rotative and secured to each other by the pivot 17, consisting of a rivet whose lower end may be headed to prevent the separation of the two cylinder parts. The cylinder passes through the recess 1S in the casing 10, and it is constructed, preferably, of different sizes, the under section 15 being of greater diameter than the upper, by reason of which a stop or shoulder 1f) is produced near the middle of the cylinder and bears against the sleeve 10 to prevent the removal of the said cylinder.

rlhe two parts of the cylinder C are longitudinally groovcd or notched in their opposite sides, as at 2O and 21, respectively, and when the notches of the upper section are in alinement or registration with the corresponding notches on the under cylinder-section it will be evident that the cylinder may be turned by a key, such as K, adapted to straddle the cylinder, the bits or branches 22 and 23 of which are adapted to enter the alined notches or grooves in the opposite sides of the cylinders.

The under cylinder-section 15 is equipped with a depending stud or pin eccentric to the axis of rotation 0i' the cylinder, which is adapted to enter the peripheral socket 2G in the lock-bolt B, and by virtue of the connection just described it will be apparent that when the cylinder is turned in the manner previously indicated the lock-bolt will be thrown into or out of one of the recesses in the steering-head to lock or unlock the latter.

The tumbler for locking the bolt in its respective positions may be of any suitable construction. The tumbler in the present case consists of a longitudinal curved spring 25, seated in the channel 26 of the bolt-carrier II, the groove being deepest at a point adjacent the cylinder, thereby to permit the working or free end of the spring to be sunk into said recess to release the cylinder. lThe opposite end of said spring is secured to the carrier in some convenientmanner. The springtumbler 25 is held in a notch of the casing 10.

The free or working end of the spring is adapted to enter either one of the notches 2O and 21 in the lower cylinder-section 15, thereby to lock the bolt in either one of its two positions, and these parts are maintained in effective engagement by the collar 10, which holds the spring in a notch. The free end of the spring is disposed in the path of one of the bits 22 and 23 of the key K, and when the bit strikes the spring the latter is thrust out of the notch in which it had been seated, so that the cylinder is released and can be turned by the key, and when the bolt reaches its other extreme position the free end of the spring will enter the opposite notch on the cylinder when the key is withdrawn to hold the lockbolt.

To attach the lock to a cycle, the carrier Il is iirst placed against the tube T with its boltrecciving bore S in alinement with the opening 9 in the tube, after which the holdingscrews 2 and 5 are inserted into their openings in the carrier and turned into the tube T by a screw-driver or other tool. The casing or ring 10 is then placed over the bolt until the inner end of the ring abuts against the inside face of the disk or guard 13. Then the ring is placed over the carrier until the socket 2G in the bolt B is Visible through the aperture 14, at which time the cylinder is inserted into the said aperture and the eccentric pin thereon will drop into the pocket. rlhe spring 25 is then lowered below the inside face of the ring 10, so that the latter can be pressed against the shoulder 12 on the boltcarrier Il. lVhcn the ring has reached the head or shoulder 12 of the carrier, it serves to press the working end of the spring 2G into one of the notches of the bolt-operating cylinder C to lock the latter and consequently the bolt B, the release of the bolt being effected by forcing the spring-tumbler out of the notch by a key-bit.

Having described my invention, I claim- 1. The combination with a bicycle-frame embodying a steering-head and a tube thereon, of a carrier having screw-receiving openings; a series of screws passing through said openings and in threaded engagement with the steering-head tube, a casin g fitting around the carrier outside of the screw receiving openings to laterally guard the screws, a bolt passing through a bore of the carrier and adapted to be projected into an openin g in the steering-head, and means serving to prevent access to the heads of the carrier-holding screws.

2. The combination, with a bicycle-frame embodying a steering-head and a tube thereon, of a carrier having screw-receiving openings; a series of screws passing through said openings and in threaded engagement with the steering-head tube; a casing fitting around the carrier outside of the screw-receiving openings to laterally guard the screws; a bolt passing through a bore in the carrier and adapted to be projected into an opening in the steering-head, said bolt having a cap or guard at its outer end constructed to prevent access to the heads of the carrier-holding screws.

3. The combination, with a bicycle-frame IOO IIO

embodyinga steering-head and a tube thereon, of a carrier having screw-receiving opengngsg a series of screws passing through said VIO openings and in threaded engagement With the steering-head tube; a casing fitting around the carrier outside of the screw-receiving 'openin gs to laterally guard the screws; a bolt passing through a bore in the carrier and adaptedto be projected into anopening in the steering-head, said bolt having a disk at its louter end, which serves to prevent access to the heads of the carrier-holding screws.

4. The combination with a bicycle-frame embodying a steering-head'anda tube thereon, of a substantially cylindrical carrier having'screw-receivingopenings and diametrically opposite screw-receiving 'channels oommeans serving to prevent access to the carrier-holding screws, and a bolt-operating cylinder adapted to be passed through a slot in the casing.

EDWARD E. TRYON.

Witnesses: FRED. J. DOLE,v

HEATH SUTHERLAND.

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