US1479305A - Lock mechanism - Google Patents

Description

H. J. LEE

LOCK MECHANISM Jan. 1,

Filed June 6, 1921 Patented Jan. 1, 1924.

HENRY JAMES LEE, on BIRMINGHAM, ENGLAND.

LOCK MECHANISM.

Application filed June 6,

To all whom it may concern:

Be it known that I, HENRY JAMES LEE, 9. subject of the King of Great Britain, residing at 174 Corporation Street Birmingham, England, engineer, have invented -a new and useful Improvement in Lock Mechanism, and do hereby declare the following to be a full, clear, and exact description of the same.

This invention has reference to an improved lock mechanism and is especially applicable for use in connection with the looking of automobiles against unauthorized use or theft, but its application is not limited thereto. 7 I

The object of the present invention is the improved construction of the lock mechanism so as to reduce the number of parts and consequently reduce the cost of production, while at the same time forming a secure locking means of the character referred to.

Theinvention consists of. a lock comprising an outer casing containing a fixed section and one or more rotary members adapted to be normally interlocked with the fixed section, the rotary member or members being formed with an eccentric section which upon rotation'projects through or beyond a slot or slots in the casing and moves into locking or locating engagement with corresponding recesses formed in the body which contains the lock.

The present invention will now be described with particular reference to the accompanying sheet of drawings in which like reference numerals indicate like parts in the dilferent views I Fig. 1 is a longitudinal part sectional elevation through one construction of the lock.

Fig. 2 is a cross sectional elevation taken on line 22 of Fig. 1.

Fig. 3 is a part sectional longitudinal elevation showing an application of the look as seen in Figs. 1 and 2.

Fig. 4 is a part sectional elevation of another application of the lock, the lock casing being slightly modified, and

Fig. 5 is an elevation taken at right angles to Fig. 4 as viewed from the right hand side.

Referring first to Figs. 1 and 2, the lock consists of a cylindrical casing 6 which is formed with a segmental slot 7 therein. Within the casing is located a fixed cylindrical section 8 and an abutting section 9 which is formed with an integral eccentric section 1921. Serial no. 475,435).

10, the section 9 being also formed with an I integral cylindrical extension 11 which passes through and is located within the fixed section 8. The section 9-is capable of rotation by the use of a key. It is normally interlocked with the fixed section 8 by means of the aligned plungers12 whichare controlled by the coil springs 13 located within the slots 1a in the fixed section 8, the fixed section 8 is locked to the casing 6 by means of apin. 15 as seen in Fig. 1. When the key is inserted in the lock casing through the cylindrical aperture 6 therein the section 9 formed with the eccentric 10 is freed from the fixed section 8 and can be rotated so that a portion of the eccentric 10 projects through and beyond the segmental slots 7 in the lock casing 6. In Figs. 1 and 2 of the drawings the eccentric 10 is shown in the projecting or looking or locating position, and it will be quite clear that a partial rotation of this section will withdraw it within the periphery of the lock casing 6. i

Referring now more particularly to. Figs. 1, 2 and 3, F ig. 3 shows one application of the look as seen in "Figs. 1 and 2, normally the lock may be said to be mounted within the fixed member 16 which is formed with a locating slot.16 therein to receive the eccentric section 10 when in the locking'or locating position. In alignment with the aperturedv member 16 is an apertured mem-' ber 17 which is normally adapted for a reciprocal motion. This member is formed with a locating slot 17 therein which corresponds to the slot 16 in the member 16 and when it is desiredto fix the position of the member 17 relative to the member 16 the eccentric section 10 is withdrawn within the lock casing 6 and the lock bodily moved forward to the position indicated by dotted lines in Fig. 3, when the eccentricsection 10 is turned so that the projecting part thereof engages within the locating slot 17*, by this means the member 17 is held against motion and fixed in a determined position relative to the member 16.

Referring now to the modification and application seen in Figs. 4 and 5, the lock is mounted within the fixed bracket 18 which is provided with two locating slots 18 and 18". Mounted on a spindle 19 which is mounted in the bracket 18 is a lever 20 which is adapted to be reci rocated as in-' dicated in Fig. 5 of the rawings. The

lock casing 6 in this construction is formed with a substantially rectangular extension in the lever 20. When it is desired to lock the lever 20 in position relative to the bracket 18 the lock is bodily advanced as.

seen in Fig. 4 of the drawings until the extension 21 is located within th'e'slot 22" of the lever. When in this position the eccentric section-1O of'the'lock isturned to engage within the'locating recess 18 formed i11 the'bracket18a" WVhen it is'desired to freethe lever 20 the eccentric section 10 is withdrawn within the lock casingiand'the lock bodily moved toward the left until the eccentric section lO is coincident with the locating slot 18 when the eccentric section lO'is again projected beyond the lock casing, this time into the locating recess 18*, the extension 21 is now clear of the slot 22 in the lever 20.

Thekey can retract the'casing 6 or the bolt'21 by frictional side pressure, or by formingthe key stem with a lateral projection adaptedto engage a bayonet slot 6 in the'retractable member.

The casing 6 is slidably mounted within the cylindricalsocket of the member 16, or

inthe cylindricalisocket of the bracket 18,

and'xthe casingis held against rotation by means of a feather 23 formed on the lock casing 6 and a key-way 24: formed in the member. 16or bracket 18.

From the foregoing description it will be seen that this improvedlock mechanism may bcrpe'rmanently but adj ustably secured in the body bywhich it is: carried in which casev the eccentric section could form the interlocking means between thefree and fixed members, or alternatively the locking mechanism could be separable from the body in such a manner thattheeccentric section forms the locating means the lock casing itself or a member secured thereto form the interlocking means.

Claims 1; A lock comprising in combination a mental slot in the lock casing and moves into looking or locating engagement with corresponding recesses formed in the body which contains the lock. Y I 2. A lock adapted for longitudinal movement so that the body of the lock can engage two'or more members which are to be locked together said members having slots for engagement by the lockingimember of the lock, comprising in combination a casing" havin a segmental slot, a fixed section, a

rotary section, spring controlled plungers coaxial with the longitudinal axis of the lock and: adapted to interlock the rotary section to the fixed section, and an eccentric section carried by the rotary section which upon rotation projects through the segmental slot in the lock'casing and moves into looking or locating engagement wlth corresponding; recesses formed in the body which containsithe lock.

3. A lock comprising in combination a body which contains the look, a casing hav ing a segmental slot and an end projection adapted toengage a member WlllCll has its path of motion at right angles tot-he 'longitudinal axis of said' casin'g, a fixed-section, a rotary section, spring controlled plungers" co-axial with the longitudinal axis of" the 100k and adapted to interlock the rotary" section to the fixed section, and an eccentric section carried by therotary section which upon' rotation projects through the segmental slot in the lock casing and moves into locking or locating engagement with corresponding recesses formedin the body which contains the look.

In testimony whereof, I have signed my

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