US1739510A - Locker-door lock - Google Patents

Description

Dec. 17, 1929. F. H.-HART- ET AL LOCKER DOOR LOCK Filed July 12, 1927' 2 Sheets-Sheet 1 Qwuento'vs $0M ze 17 f'k q) Q2999 I 3% M Dec. 17, 1929. H. HART ET AL 1,739,510

- LOCKER DOOR LOCK Filed July 12, 1927 2 Sheets-Shea 2 III/III.

Patented Dec. 17, 1929 UNITED STATES PATENT OFFICE FRANKLIN H. HART, OF NEW HAVEN, AND WILLIAM A. CARMICHAEL, OF HAMDEN,

CONNECTICUT, ASSIGNORS TO C. COWLES &. COMPANY, OF NEW HAVEN, CONNECTI- CUT, A CORPOBATICN F CONNECTICUT LOCKER-DOOR LOGK' Application filed July 12, 1927. Serial No. 205,107.

This invention'relates to a locker lock and latch operating means, and has for an object to provide improved lock and latch operating means for this type of devices which will be very simple in construction and may be manufactured and assembled at low cost, and also which will be or rugged construction so that it is not easily gotten out of order or broken.

It is also an object of the invention to-provide an improved locking means fora latch operating mechanism for this type of devices.

VVit-h the foregoing and other objects in view we have devised the construction illustrated in the accompanying drawings forming a part of this specification similar reference characters being employed throughout the various figures to indicate corresponding elements. In these drawings,

Fig. 1 is a vertical section through our improved lock showing it as applied to a locker door. I

Fig. 2 is a rear elevation of the same.

Fig. 3 is a section substantially on line 33 of Fig. 1 and on a somewhat enlarged scale.

Fig. 4: is a transverse section substantially on line iof Fig. 1.

Fig. 5 is an elevation of a latch operating lever.

Fig. 6 is a detail section showing the means for securing the tumbler barrel in the lock.

Fig. 7 is a side elevation of the tube enclosing the barrel.

Fig. 8 is an end view looking from the left of Fig. 7.

Fig. 9 is an end view looking from the right of Fig.- 7.

Fig. 10 is a section similar to Fig. 1 showing a slightly difierent construction.

Fig. 11 is a partial rear elevation and a partial section substantially on line 1212 of Fig. 10.

Fig. 12 is a section on the same plane on an enlarged scale but showing the bolt in the unlocked position, and i Fig. 13 is a detail elevation. '7 i Referring to Figs. 1 to 9 a locker door is indicated at 15 of any suitable construction, as heavy sheet metal, and carrying on its rear surface suitable guides 16 and a lock or latch bar 17 adapted to project behind the flange 18 of a frame member or bar 19 to hold the door closed. The bar 17 carries a laterally extending flange or lug 20 having an opening for the roundedhead 21 of an operating lever or arm 22. This arm has a non-circular opening 23 to receive a similarly shaped shoulder portion 24 of a tubular member 25, in the present construction the tubular member being flattened on its opposite sides.

Extending through an opening in the door 15 is a tubular sleeve 26 embracing the tubular member and in Which this member may turn or the sleeve may turn in the door. The member 25 has a reduced portion 27 having a bearing in a strap 28. This strap is substantially U-shaped and is secured at its opposite ends to the rear of the door by any suitable means, such as rivets 29, and it embraces the inner end of the sleeve 26. The reduced portion 27 forms a shoulder which limits the inward movement of the member 25 by engagement with the inner side of the strap 28. Outward movement of this member is prevented by a collar 30 pinned to a reduced end of the member 25 inwardly of the strap 28, the pin being shown at 31.

Mounted to rotate within the tubular member 25 is a barrel 32 carrying any suitable number of tumbler pins. 33 which are controlled by a key 34. These pins are mounted to extend transversely of the barrel and have side lugs 35 to engage the side of the key for'positioningthe pins and which are engaged by the springs 36 to project one end of the pins when the key is removed from the barrel. The tubular member 25 is provided with longitudinal slots 37 38 and 39 into which the ends of the pins may project for locking the barrel against rotation relative to the'member. The member 25 is also provided with transverse openings 40 for a sliding bolt 11. This bolt is preferably square or rectangular and the openingis substantially the same shape so as to prevent turning of the bolt. In one side of the bolt is a recess 42 to receive an operating pin 43 carried by the inner end of the barrel 32, and it is eccentrically arranged on the barrel so that as the barrel is rotated this pin acting in the recess will slide the bolt 41 in its opening. The barrel may be provided with a groove 44 to receive a transverse pin 45 passing through the walls ofthe member 25 to retain the barrel in position. The bolt 41 ispreferablyot a thickness to extend into both the strap 28 and the arm 22, the opening 40 being in alignment with both or these elements, asshown'in "Fig.

"1. The "arm 22, therefore, has a notch '46 to receive the end of this bolt and the strap 28 has a similar notch 47 leading -from .the bearing for the reduced portion '27 of the member 25. The strap 28 also hasat one side of this notch 47 another notch 48 which is of less depth. so as to :torm astop shoulder 49.

In operation when the arm 22 is in'the position of Figs. 1 and2 the latch bar 17 is -i'n'itsiholding position behind the flange 18 springs -36 outwardly-to bring one end-0f these pins intoone of the slots in the mem- .ber 25depending'on the position of the barrel.

Thebarrel is then held against-rotation in themember 25, and if the-end of the .bolt 41 proj ects .-into notches .46 and. 47 the. arm .22 r is locked-in this position because the notch..47 is. in the stationary strap 28. lThereiore,..the bar 17 is held in locked posiation. ilfithekey is withdrawn the .arm and its operating mechanism is locked in thispositionnbecause the barrel is then held. against rotation in the member .25 by the tumbler pins v33 entering one of the slots 37 ,.38 ors39- inthe member 25. Ifitis desired.to-unlockthe doorinsertion 0f the key will (again withdraw the tumbler pins fromtheslotsin. the member 25 permitting rotation of the barrel and withdrawal of .the'bolt 41.from thenotches 46 and 47. The member25maythen beturned toswing thearm22 to the dottedpositionof Fig.2. LI-Iowever, .asa port-ion ofzthelbolt .41

. still projects above thesurfa-ce of. the. reduced portion .27' ofthe I member/25 this movement is limited by engagement ofthe .boltwith the shoulder '49 on one side of the shortnotchi48 .from the sleeve26lbut they may itdesirdbe m ade in one piece.

From theforegoing .it will .beapparent that while. projecting or retracting. the l looking bolt 41 the barrelf32. is. rotated relative to the tubular member 25, but while swing.

'this 'notc'h is preferred as it permits the use "of'a thi'cker,stronger 'bolt and'the bolt also .assistsin preventing turning of arm 22 on member "25 when the bolt is in the locking position.

In the form shown in Figs. 10 to 13 the .strap :28 is omitted, therefore-the lockingac- -tion.'is made directly with the door 15. 1In this construction there is a tubular -member-51 .correspondingeto the member25 in-the first Tform-which=is-mounted torotate inopening inithe door. .This openinghas a notch 52 and a shorter notch 53 atone'side ofthe first notch to provide a shoulder 54. The member 51 is reduced at 55 to pass through-the opening in the door. and formia shoulder 56 .on the. member 51 to engage-thefront-surface of-the vdoorandlimittthe inward movement of this member. This member has a transverse opening forIthe-slidi'ng-bolt 57 which openingis in alignment with the door 51'.

so'gthat when theibolt is' projected, as shown in F ig. {11,its iouterendwill. seat in the; notch 52: and. lock the 1 member 51. against rotation. \Vhen the bolt'is withdrawn into the member 51..i-t-will be withdrawn from the notch 52 blitz-15557111 project: sufficiently abovethe surface of the reduced portion 55 so th-at it-may project into the short .notch 53 and engage theeshoulder 54'to.limit the swinging movementsiof the-member 51 and the latch 'opera-ting arm 58. .Inthis construction the inner end of themember 51 is flattened .off on opportion to project into a similarly shaped openingsinthe arm 58. so that the arm is secured-to turn with thissmember 51. The arm isheld .on-the I member by means of a collar 60 secured to the member'51-by the pin .61. In: this construction, 1 as the member 51 has nobearing to the rear of the door, ashas member 25 in the first form, an escutcheon or collar 62 is provided extending outwardly from thedoor and-forming a bearing 63 at its outer end .for .the member 51. This collar .orzescutcheon 1is .secured'to-the door by any suitablemeans, such asrivets .64. Themember 51 may be operated to operate the-latch bya handle .0r.:a knob .65 the same as in the .first.form,..and it will, of course, be-understood that the bolt 57 is operated by a key controlled-barrel '32 the-same as inthe first ..form.

.Itwillbe noted that this latch or look is especially adapted .for use insteel lockers, although it is .inotnecessarily limited to use positesides at 59to provide anon-circular for this purpose. It is of a very simple and rugged construction, may be easily assembled and will be very reliable in operation.

Having thus set forth the nature of our invention, what we claim is:

1. In a look, a rotatable member adapted to pass through an opening in a door and having a non-circular portion to receive a latch operating member, a slidable locking bolt carried by said first member, a member carried by said first member for operating the bolt, key controlled means carried by the bolt operating member, means cooperating with the key controlled means to lock the bolt operating member in different positions when the key is withdrawn, and a knob carried by said first member for operating it.

2. In a look, a rotatable member having a transverse opening, a locking bolt mounted to slide in said opening and to project from the side of said member, a stationary member having an opening to receive the first member, said opening including a notch in one side to receive the bolt to lock the member against turning and also including a shorter notch providing a shoulder to engage the bolt and limit turning movement of the first member in one direction, a latch operating member carried by the first member, and key controlled means for operating the bolt carried by the first member.

3. In combination, a door, a cylindrical member extending through said door and mounted to turn therein, a strap secured to the rear of the door provided with an opening, said member having a bearing in said opening, said opening including a notch in one side thereof, a transversely slidable bolt carried by said member, shoulders on the member cooperating with walls carried by the door to prevent longitudinal movement of the member and secure it in position in the door, a rotatable barrel carried by the said member and having operative connection with the bolt, key controlled means carried by the barrel and cooperating with shoulders on the first member to prevent turning of the barrel, a latch operating member carried by the first member, and a knob for operating the said members.

4. In combination, a sheet metal door, a

stationary strap secured to the rear of said door, a cylindrical member having bearings in the door and strap, shoulders on the member cooperating with the strap to prevent longitudinal movement of said member, said strap having a notch extending from one side of its bearing opening and a shorter notch at one side thereof forming a shoulder, a

transversely slidable bolt carried by the first member adapted to project into said first notch to lock said member against turning and to engage the shoulder of the second notch when retracted to limit turning movement of the member, key controlled means carried by the first member for operating the bolt, and a latch operating member connected to the first member.

5. In a look, a substantially cylindrical member having a tubular outer portion provided with laterally spaced longitudinally extending slots, a cylindrical barrel mounted in said tubular portion and carrying key controlled locking pins adapted to project into said slots to lock the barrel in diflerent positions against turning, a transversely slidable bolt carried by the first member, an operative connection between the barrel and the bolt, a stationary member having an opening forming a bearing for the first member and having a notch in one side of said opening in position to receive said bolt to lock the first member against turning, and a latch opfirating member connected to the first mem- 6. In combination, a door, a stationary strap secured to the rear of the door, said strap having an opening forming a bearing and a notch extending from one side of said opening, a cylindrical member having a hearing in said opening, a latch operating arm carried by said member at one side of the strap, said arm having an opening toreceive said member and a notch at one side of said opening similar to that in the strap, a transversely movable bolt carried by said member of a size and arranged to project into both of said notches in one position to lock the arm against movement, means for turning the member, and key controlled means carried by the member for operating the bolt.

In testimony whereof we afiix our signatures.

FRANKLIN H. HART. ,WILLIAM A. OARMIGHAEL.

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