US1555970A - Casing for keyless locks - Google Patents

Description

Oct. 6,1925- 1,555,970

A. G. HATCH CASING FOR KEYLESS .LOCKS Filed March 20. 1924 3 Sheets-Sheet 1 gwuentoz attoznzub Oct 6, 192-5 A. HATCH CASING FOR KEYLESS LOCKS AQG. HATCH CASING FOR KEYLESS LOCKS 3 Sheets-Sheet Filed March 20. 1924 Quoting.

have invented certain n Patented Oct. 6, 1925.

UNITED STATES PATENT oFFicE.

ALEXANDER GIIZCHRISTI-IATCH, 'OFQHONOLULUfTERRITORY OF HAWAII, ASSIGNOR, .IBY DIRECT AND'MESNE ASSIGNMENTS, TO'W-HKEYLESS T OGK COMPANY, LIMITED.

CASING- FOR KEYD'ESS LOCKS.

.Applicationifiled .March 20, 1924. Serial .No. 7003686.

To all whomit may concern:

Be it known that .I, ALEXANDER'GILOHRIST HATCH, a citizen of siding at Honolulu,

provements in Casings of WhlCll the following This invention relates the United States, re-

Territory of :Hawaii,

ew and useful Imfor Keyless Locks, is a specification.

to looks, and more especially to a lock of the .so-called keyless or permutation type,

and has for one of its objects to provide a-device ofthis character which is so constructed stantially impossible with through the opening the lock, whereby access may the interior mechanism lock might be rendered A further object that :it will be subfor it to be tampered of the-casing of be gained to to the end that the ineffective thereby.

of the invention is to provide a lock which :is enclosed Within a casing comprising two or more separable parts, .whereby assembly and dissembly of the operative portions may fected by authorized persons,

be readily ef- .while at ;the

"same :time the said casing parts are efiectively interlocked when sembled so as 'sible ifor them to ized persons.

WVith the above the :mechanism is asto make it practically impos- :be separated :by unauthorzand other objects in view which will appear :as the description proceeds, the invention 1 consists in .the ;novel details of construction and combinations :and

arrangements of 1 parts In orefullyrhereinafter described and particularly :pointed out .in

the appended claims.

Reierring to the accompanying drawings ziorming. aipartiof ,thisispecification;in which like reference charactersadesignatealike parts im-alltthe views: Figure 1 is a IlfITOIll? ,elevational vview of a lock -:constructed ;in :accordance with drhe "present invention, LZLS applied :to controlling the iignition and lighting :switches :of :an automobile, only so ;much of 'the actual alack mechanism being 1 shown, .however, as :is :essential to :an understanding of the inven- .tion;

the parts Sll0WI1 :in

aig. '2, taken approximately on the {plane indicated sby the zline 3-8 of the said figure, :rection of ithe arrows;

docking in (the di- Figs. 4 and 5 are detail perspective views of the two members of the flock casing;

Fig. '6 is a'vertical sectional 'view through a:somewhat;n10dified form of the :invention Fig. .7 i-sa transverse sectional'view,1taken approximately. on the plane indicated by the line 77 of Fig. 6; and,

Fig. 8 is a horizontal sectional =viewtaken approximately on the plane indicated by the line 8-8 of Fig. 6.

Referring more particularly to .Figs. L1 :to 5 of-ithezsaid drawings, the rnumerals 10 and I1 indicate respectively itheitwo "mem- :bers vot'zthe lock-casing, the former-of which .is provided with a substantially semi-cylindrical top portion 12 and a back 'wall 113, which wall'isprovided with :a substantially cylindrical opening 14: to accommodate :a suitabledisc or nlateof insulating material, upon which may the mounted the binding ,posts {and certain parts of the electrical switches .for controlling the circuits of the vehicle, iw'hichrswitches may be in turn ,controlled bythelocking mechanism :in amanner similar to that described :in the prior Patent No. 1,373,283, granted :March 29, .1921,\to Meade Wildrick, and entitled Keylessilocks.

ilhessaid :member ,10 isalso rovided with the downwardly iextending 'ront 'Wall .16, :having the [bore :I7 .for the reception of :a locking ;bolt :18, which "bolt is zprovided swith 'theidownw-ardly depending 'legs F19, having the :angularly disposed :toes '20, which are adapted to enter grooves 21 {formed 1011 the side ifiaces of Ithe permutation wheels :22 :by providing the said ffaces with the 3111111131 rIlbS 23, :in a manner similar to :that :disclosed .in :my pending iapplication, .filed .March 12, 519%, Ser. ;No. 98,718, sentitl'ed Keyless .lock.

The other casing :member k1 :is shaped substantially, z-asslrown in Fig. 5,:and provided-with {the side walls, :25 and Q26, and the :front Wall 27, which latter :is :cut :away :as at 2.8 *ito :receive the downwardly :extendling :lug :29 10f the zupper zfront wall zmember .116, :as Wlll !'be :readily iunderstood :from :the :drawings.

The under edges cat the semimylindrical :top wall :member ll2 are providediwithzsuitblerdoveetailigrooves 3.0,wliichiaresadapted ito receive the '.dove-tail tongues $31, "which side walls 25 and 26 of the lower member 11, whereby a sliding engagement between the two members may be had in a horizontal direction, while a relative vertical movement between the two will be prevented.

The permutation wheels 22 are rotatably mounted upon a shaft 33, the ends of which may be received in suitable holes or apertures 34 formed in the side walls 25 and 26 of the member 11, or if'desired, the said shaft may be mounted in a separate bearing block carried'within the member 11. When mounted in the walls, 25 and 26, as here shown, the said shaft may be provided with suitable collars 35, secured to the said shaft as by the set screws 36, whereby longitudinal displacement of the shaft may be prevented.

The two parts of the casing, 10 and 11, may be secured together, if desired, by means of suitable screws or other fastenings 37, although in some instances it may be desired to omit such fastenings and depend entirely upon the inter-locking of the two members through the co-action of the locking bolt 18 and the permutation discs 22 to maintain the parts in a closed relation.

As described in my said co-pending application and clearly shown in Fig. 2 of the present drawings, the annular ribs 23 are cut away'as indicated at 38 to provide passageways through which the toes 20 of the legs 19 may pass from within the said ribs to the outside of the same in order that the parts may be unlocked. It will be clear from Fig. 2 in particular that if the locking bolt is in the position shown therein and the wheels such as 22 be rotated to move the passage 38 out of alignment with the toe 20, that the bolt 18 cannot be moved axially of itself, and that therefore the parts will be efiiciently interlocked, since any attempt to slide the lower member 11 relative to the upper member 12, will cause the said member 11 to carry with it the permutation discs or wheels, which movement will bring the inner periphery of the ribs 23 into enga ement with the toes 20 of the bolt 18. an

the other hand, if the wheels are so set as to bring all of the passages 38 into alignment with the respective toes 20 of the bolt,

then such movement will not be prevented, as the toes will pass through the passages 38 of the grooves 21 to the outside of the ribs 23 and the lower part of the casing may be completely disengaged from the upperpart in order to gain access to the interior mechanism. This, however, cannot be accomplished unless the permutation discs are set at the predetermined combination, as

will be readily apparent.

In igs. 6, 7 and 8, I have shown asome-- what modified form of the invention wherein the sliding bolt is mounted for substantially vertical movement in a plane at right angles to the axis of the permutation discs or wheels. This construction is similar to that disclosed in my said co-pending application No. 698,! 18, the said bolt being designated by the reference character 40.

As best shown in Fig. 7, the said bolt is provided with the downwardly depending legs 41, certain of which are provided with the laterally projecting toes 42, corresponding to the toes 20 of the bolt 18 above de scribed and adapted to co-act with the annular flange or rib 23 of the permutation wheels, to effect the locking of the parts. The said bolt is reciprocated by means of the shaft 44, which carries at one end the fingerpiece 45, and at the other end the op erating member 46, provided with the slot 47 which receives the pin 48, carried by the bolt 40, all as is clearly set forth in my said co-pending application.

The side walls 25 and 26 of the lower casing member 11 are provided with the rigid inwardly extending lugs 50 and 51, best shown in Figs. 7 and 8, which are so positioned as to co-act with the outside depending legs 41 of the bolt or slide 40, as to prevent relative sliding movements of the lower casing member 11 when the bolt 40 is in its-lower or locked position. However, the parts are so designed and constructed that when the bolt 40 is raised to its unlocked position, the depending legs 41 will be raised above the top edge of the lugs 50 and 51 so that, if desired, the lower casing member 11 may then be pulled outwardly or toward the right, as viewed in Fig. 6, whereby access may be gained to the interior of the lock for purposes. b It will be noted, however, that the memers the proper combination has been set on the permutation wheels and the locking bolt 40 raised, since when the said bolt is in its lower or locked position, sliding movement of the member 11 relative to the member 10 will be prevented, due to the contact of the forward faces of the lugs 50 and 51 against the depending legs 41 of the slide 40.

As above stated, only so much of the look ing and switch mechanism as is essential to the understanding of the present invention, has been here illustrated, and in fact the invention might be readily applied to various other forms of locking mechanisms by making slight changes in the construction.

It is therefore obvious that those skilled in the art may vary the details of construction as well as the arrangement of parts without departing from the spirit of the invention, and it is not wished to be limited to the above disclosure except as may be required by th accompanying claims.

repairs or for other 10 and 11 may only be separated after a back Wall and a top portion having dovetail grooves; a second casing member comprising front, bottom and side Walls, the latter being provided With complementary tongues for engaging said grooves; and a lock member carried by each of said casing members, said lock members being adapted when engaged to prevent relative movement of said casing members.

2. In a look, a tWo part casing, the parts being separable by movement in one direction only; one of said parts being provided with a projection; a slidable member carried by the other of said parts, adapted to control the mechanism to be locked, a portion of said member being movable to a co-operative position with said projection to prevent the separation of said casing parts; and means for controlling the sliding movements of said member.

3. In a lock, a two part casing, the parts being separable by movement in one direction only; one of said parts being provided With an integral projection; a slidable member carried by the other of said parts, adapted to control the mechanism to be looked, a portion of said member being movable to a co-operative position With said projection to prevent the separation of said casing parts; and means comprising a rotatable disc carried by the first mentioned casing part, for controlling the sliding movements of said member.

ALEXANDER, GILOHRIST HATCH.

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