US1664984A - Lock mechanism - Google Patents

Description

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c. W. LANPHERE LOCK MECHANISM Filed Sept. 9. 1926 4 Sheets-Sheet 4 INVENTOR CLIVE W' LANPHER ATTORNEY@ Patented Apr. 3, 1928.

UNITED STATES o'LIVE W. LANrHE-nn, or NEW YORK, N, Y.

LOCK MEGHANISM.

Application fried September The present invention relates lto a lock having an interlocking bolt, a latch, and reversible elements making it adaptable to right and lett hand doors.

.More s peciiically the invention provides a locking mechanism comprising an arcuate bolt vmovable outwardly from a casing through 'a strike and into the casing, and a spring pressed latch to engage the strike.

The 'present construction is such that the bolt passes through a curved path and spans lthe gap between the door and tl e VVjamb at two diterent points spaced a relatively great 'distance apart, thus the bolt offers the vsame resistance to a direct force as would two individual locking bolts.

Because ot the curved path through which the bolt travels it embraces a portion of the keeper making it 'exceptionally resistant to a separation of the bolt and keeper by means oi a jin'in'iy or other tool when inserted .between the 'door and j amb as is often etliective in attaining an. opening of a door equipped y with locks of the straight bolt type.

A lock ot' similar fundamental construction to the present invention is shown and described in my Patent No. 1,584,950, issued May f1.8, 1926. The lock herein shownand described embodies various improvements in the arrangement. or' the operative parts, and attains the 'desired 'result with a reduced number 'of movable elements. By reason of the various improvements the present lock may be more economically `constructed and the parts are more readily and conveniently assembled making the article more practical :trom a manufacturing standpoint and salable at a price which gives the lock a Wider range to a greater number of uses.

Brieiy, 'the y several improvements include the location ot m f c linder outside the )ath y l oit' the bolt making 'it possible to reverse the c v'lfini-ler, a latch and latch hubs therefor reversible, and 'a catch which renders rthe lock adaptable i'o'r use. with mast-er key. Also,

improved means for locking the bolt in its projected and retracted positions, and tor releasing the same. Other improvements comprise a toothed segment and lever, also a vdouble arm lever. which when oscillated by a knob causes the toothed members to throw or retract the bolt and retract the latch. A flangedguard is also provided to render sawing or the bolt dcult. The

e, 1926. sei-iai No. 134,446.

above and other icatures will be more clearly raider-stood by reiterence to the accompanying drawings in which:

Fig. 1 is a plan view of the inside of the lock the cover plate having been removed and showing the 'bolt retracted.

' Fig. '2 is a view similar' to Fig. 1 but with the bolt projected. A

Fig. Sis a view similar to Fig. 1 but shows several of the movable parts in diiferent positions and illustrates the operation of the lock by a key lever on 'a key cylinder', the key cylinder being `shown positioned in a threaded hol-e in the bottom wall oi the casing and illustratingv the reversibility of vthe lock.

Fig'. 4 is a sectional view of thelock taken substantially on line IV--lV in Fig". 1 and shows the lock applied to a door. y

Fig. 5 is a cross sectional view 'of the lock taken substantially on line V-V in F ig, 3.

Fig. (5 Vis a :tragn'ientary enlarged view of the bolt and its relation to a keeper.

Fig. 7 Vis a detail view oic a bolt lockingl detent.

Fig. 8 is an ontside'vi'ew of the lock showing a key cylinder on the cover plate.

Fig. 9 a view of a knob 'for 'actuating the bolt. y y

Fig. 10 is -va 'iront view 'ot a keeper. Fig. 10a is an end view of the keeper shown in Fig. 10.

Fig. l11 is a detaii view oit' a latch.

Fg. 12 is a plan view 'of the latch.

Fig. 153 is a vie'wo't a toothed plate.

Fig. 1li is 'a 'spiral spring.

Fig. 15 is `a view et a cam plate.

16 is an end view of the cam plate, shown in Fig. 15. The several parts shown in Figs. 13, 1st and 15 when assembled, constitute a bolt actuatying unit.

Fig. 17 a view oil a Ipart oit-my lock Yshowing in detail, mechanism whereby the lock may be 'rendered inoperable except by thek 'application oi" 'a master key.

F" 18 is a perspective View of a. latch jii'orm g pa'r't ot. the mechanism shown in Fig. it, and

Fig. 419 is a View taken Vsubstantially on lin'e in Fig. 17. p

An 'embodiment of the present invention as shown in the preferred form is applied "to 'a lock of the mortse type. It is, however7 obvious that the invention has equal utility when applied to a rim-type lock.

The selected construction of lock to illus trate the practicability ot' the invention may include a housing or easing 26 comprised ot a bottom wall 21 and sidewalls 22, 23, 24 and 25. oit the casing to provide a facing 26 and with extensions 26 with screw holes for festem ing the lock to a door and a it'ace plate 27 may be provided and secured to the facing by suitable screws. i AV cover plate 29 may complete the housing and may be fastened by suitable machine screws disposed in tapped holes 31.

My lock mechanism may comprisecooperating` elements which are primarily the same asthose shown and described in my patent above reierred to, certain improvements to `the general construction havingbeen made and greater simplicity of operation being attained.

As illustrated, the lock may comprise an arcuate bolt 32 having atongue 33 integral with an extended rear portion or tail-piece 34 and a lin or radius arm 35 having a hub 36 (see Figs. 5 and 6) journaled on a post or pivot pin 37. The post may be integral with the bottom wall 21 of the housing and may be provided with a reduced portion which provides a supplemental pivot 38, the .purpose ot which will be later described.

The arcuate bolt 32 is thus rotatable about the post 37 and may be oscillated by means of a knob 39 (see Fig. 4) or a key 40 under the action ot associated cooperating elements. The knob 39 may, as shown, be provided with aV shank 41 extending through the woodwork 420i a door 43 and into` a barrel member 44 carried in a disk member or insert piece 44 in which it is rotatable.

The disk member is threaded and adaptedl to be screwed into athreaded aperture as provided tor the key cylinder'of a tumbler type oi key cylinder. Asmore fullylhereinatter .set forth, a key cylinder is disposed in the cover plate of the lock and in axial alignment with disk member 44.

The Jtree end jot the shank 41 is disposed in the barrel member 44 which may be provided with a double arm lever termed herein a knob-lever 45 associated with the knob in a manner to be later described (see Figs. 1 and 2). two substantially radially disp-osed arms46 and 47 positioned for engagement with an arm 4S of a bell-crank member or gear segment lever 49. A reversible stop screw pin 1 5() disposed on the disk member 44 is provided to limit the movement ot the knoblever 45 which prevents it retracting the latch. The stop pin 50 may, as shown, be positioned to engage one side ot double arm lever 45 or the pin may be positioned in the threaded Vaperture 50 to engage theopposite The side wall 23 is extended at each end This knob-lever is provided with side of the said lever. Thus the pin may act as a stop when the lock is reversed.

The opposite arm 51 of the gear segment lever is provided with a toothed segment 52. y The gear segment lever 49 is movable on a pivot 53 fastened to the bottom plate 21 of plateV and serve as cam members for pur* v poses to be presently set forth. Each ot the raised portions has a tapped hole 61 whereby the disk mayv be secured thereto by screws extending through suitably `disposed holes 62 in the disk. y Before the disk 55 and plate 56 are secured together a spira-1 spring 63 is disposed between them; the inner end ot' the spring being secured in a slot 64 formed in a tiange 65 at the perimeter of a centrally located circular aperture 66 in the plate 56. The disk 55 and plate 56 with the spiral spring therebetween may be disposed for rotation about the supplemental pivot 38, the aperture 66 being of such dimension as to provide a running fit for the united elements which asa whole, may be termed an intermediate bolt and latch actuating unit. This unit, asV shown in Fig. 5

Vwhen in position upon the pivot 38, is located above the hub of the arcuate bolt 32 and the free or opposite end 67 of the spiral spring 63 may be secured in a slot 68 provided in a lug` 69 integral with the iin 35 of the bolt 32 (see Fig. 6). Vhen the bolt actuating unit is n-its proper position with relation to the bolt, the lug 69 is disposed at one side ot the edge of the plate 56 and between the projecting cam members 57 and causes the gear segment 54 ot the disk 55 to move the gear segment 52 which takes the position shown in Fig. 1. The projection 57 ofthe plate 56 then engages with when the key 4() is released after a retraction of the bolt and latch. `lVhen the bolt 32 is 1n its retracted position as shown in Figs. 1

the lug 69 on bolt 32 and serves asa stop,

and 3 a locking detent 70pivoted at 70 opcratesA under the action of a spring 71 to enter a notch 72 in the bolt 32 and thus hold the samerin its retracted position. The detent may, however, be disengaged from the bolt by a movement of the knob lever 45 which engages with a cam surface 73 one end of the detent.

For the purpose of automatically actie ating the double arm lever 45 'to clear the the use of a tool.

Leonesa 3 detent and permit it to engage lthe bolt a spiral spring 7 OV is ,provided Ahaving one end secured at the center of rotation of the level 45 and the opposite end secured in a slot in a suitably positioned lug 70. Moving the arms 15 or 71 toward the surface 84 of the bell crank 48 disengages the detent 70 and permits 'projecting the bolt.

An actuation of the bolt by turning the key t() may be effected vby means oi' a .cam arm 71 fastened to the inner side ot a key barrel 72 of any suitable type or' key cylinder lock 74- (see Fig. il) extending through the Woodwork of door 43 upon the side opposite to the knob 89. The cam arm 71 and the knob lever. 45 are so disposed as to be rotatable about a common axis. The key cylinder may be screwed into the cover plate 29 of the housing 2O and in alignment with the disk member '44 as above mentioned.

Two'pairs 'of screw rods 75 and 7 6, shown in Fig. 1, and 7 5 and 76 in Fig. al., lprevent rotation of the key cylinder by a Wrench or other tool and afford the adaptation of the key cylinder to either side of the lock, makf ing it reversible. The disk member liet and the key cylinder 721 are thus interchangeable as the cylinder 74@ is provided With notches 7 l and the disk member with notches 7 4L lto receive the screw rods. The 'free ends of the rods 75 and 76 and 75 and 76 may extend to the facing 26 of the casing and are accessible to be screivedin place after which the face plate 27 may be Jfastened in place. It will be evident that 'by means of the rods 75 and 76 and 75 and 76 which lock the 'key cylinder in place, the `force required to move it would be greater than attainable by y Any attempt to turn the cylinder Will be opposed 4by a direct thrust against one rod and across the other I may further insure against a 'ma-nipi'i'lation of the cylinder by providing escutcheon plates 77 and 7 8 'show-n' in F-ig. 4t and having the plate 77 of such 'thickness that 'the end 79 of the key cylinder which projects lfromy `the Wood of the door Will be flush ,with the surface of the plate, thus preventing` the application of a. tool to the cylinder. The plates 77 and 78 may be secured by bolts 81 and 82 extending through the door and plates the nuts 88 of the bolt's being on the i-nner Vside of the door.

Referring again to the lock mechanism it uill 'be noted that 'the cam a'rm 71 operates, when the key l0 is turned to `engage with surface 84 of the arm 48 ofthe gear segment 49'to retract the bolt 82 andthe surface 84C toproje'ct it.

It the bolt 82 is to be projected an initial or partial rotation of either the key or knob causes the gear segment 49 to be oscillated, causing a rotary movement of the bolt actuating unit to move the projecting portion '57 of the plate 56 Which is in 'Contact With the lug 69 on the bolt. A continued movement ot either the knob or key results in the projection of the. bolt.

Vhen projected, the bolt is locked against return movement by means other than the knob 39 or key 41. The means for locking the bolt may 'comprise a locking paivl 85 movable on a pivot having a projection 86 to engage with a tooth or lip 87 integral 'with the hub ot the bolt 82 (see Fig. 6).

The locking pavvl is normally moved to locking position by a spring 88. The projection 86 of the pawl is thus pressed against the outer surface of the hub 86 and traverses the same until it rides over the tooth 87 at which time the bolt is Wholly projected.

The vrpawl must, however, be lifted to permit 'a retraction of the bolt and in the present construction this can only be. accomplished by a movement of the bolt actuating unit and consequently only by a partial rotation of the knob 89 or key al. The pavvl 85 is therefore formed with a concave surface 89 so as to provide a greater distance between the paivl and hub 86 adjacent to the projection`86 than between the tree end 91 of the paWl and the hub. This space or clearance permits the cam member 58 to take a position close. to the projection 86 when the bolt is projected and toengage with the end 91 of the pawl as the plate 56 moves under the action of the knob or key. The movement of the plate 56 results in an engagement between the member 58 and lthe pavl 85 to lift the latter, as shown in Fig. 7

and release the ybolt for retraction. The necessary initial movement of the bolt actuating unit comprising the plate 56 is provided ifor si'nce the said unit is free to move independently of the bolt until the projecting 'portion or cam member 58 engagesr the lug '69 of the bolt7 this contact occurring after a vpartial movement of the knob or key Which carries the bolt along to its retracted position.-

lIn addition to the bolt 82 it is, vof course, desirable rto provide the lock with a latch 'for general use and particularly 4tohoid lthe door 'closed when the bolt is not locked. Any suitable latch mechanism may be employed. The mechanism shown includes a latch bar 92 having a beveled end 98 normally projecting 'from the casing under the action ot a helical spring 94 positioned between the vbeveled end 92 and a guide 95. The latch bar has an extension 96 terminating in' an offset portion 97 "to engage a nose piece 98 on la yoke 99. The yoke is constructed With an arm 101 adapted to rock upon a fulc'rum 102 ant is held under Vtension by engagement with an end ot a spring 1023. The yoke 99 .is disposed about a lhub 104i having a rectangular aperture 105 to receive a spindle for knobs 106 at opposite sides of a door in the usual manner.

The hub 104 is provided .5

with a lever arm 104 normally in engagement with the nose'piece 98 ot' the yoke 99. Thus when a knob 106 is turned in either direction to move the latch inwardly the nose piece eiitects a movement of the yoke in opposition to springs 94 and 103.

It is desirable, however, to eliect `an automatic retraction or" the latch When the bolt 32 is retracted by the key. The latch therefore is associated vvith the lock actuating unit by a rocker bar or lever 107, one arm ol which is disposed in a slot 103 in the latch 92 (Figs. 11 and 12). VThe opposite end 113 of the lever is positioned to be eni gaged by the cam member 57 ot the pla-te 56 on the bolt actuating unit. Whenr the bolt 32 is retracted by the key, the cainmember 57 engages the lever end 113 and the latch is retracted during the linal movement ot the key. "When the key is returned to its initial position the cam member 57, under the action of the spring 63, will return to its contact with lug 69 on the bolt 32 and the latch 92, under the action of the spring 94,

will be projected and disposed in a suitable aperture 109 oi? a. keeper 110 having` the necessary apertures 111 and 112 for the reception ot' the bolt 32. .Y

It will be noted that in the present construction the latch 92 is reversible and provided With slots 108 on both sides thereof to receive the lever 107 in" either a right or left hand lock thereby avoiding separate latch bars for each condition. For the purpose of holding` the latch 92 inoperable l may provide' the usual push button stop 115 and releaser 114 movable through suitable apertures in the Wall 23 and the face plate 27 et the lock and associated by a pivot/ed member 116.

The push button 115 may be provided with an extension 117 (see Fig. 2) arranged .to have an end 118 thereof inserted into a notch 119 formed in the lever arm 104 of the latch hub 104. Vhen the end 118 is disposed in the notch the latch hub will be held immovable and may be released by pressing the push button 114. A second latch hub 104 is loosely connected bya collar (not shown) to the hub 104. Their positions are interchangeable in the usual manner.

The keeper or strike 110 (sce Fig. 1 sometimes termed a guard or striking plate into which the bolt 32 is projected may be similar to that set` forth in the above mentioned patent, however, l have added a longitudinal flange 121 and as wvill be noted, apertures 109 and 109 are similar and provide for a reversal of the keeper7 thus if the keeperis reversed by reason of a right or lett hand door, a suitably located aperture will be provided for the latch 92.

The present construction of lock is adapted to be-provided With means which may be Lactose manipulated from the inside of the door to lock the bolt in its projected position making it impossible to unlock the door from the outside by means of the usualV key, but permitting thedoor -to be unlocked when a master key is employed. This construction is iound desirable when the lock is used on the Y doors of rooms of hotels or the like so that the occupant may lock the door from intrusion except inthe case of an emergency. An

authorized person with the proper 'master .ing a plug and sleeve. This cylinder has the usual tumblers 127 which may be moved by a key 128 to permit a rotation of the key plug 129 causing a movement of the lever arm 130 to actuate the gear lever V49. A second lever` arm 131 is, however,` provided with this type ot key cylinder Which lever arm is movable With a sleeve 132. The sleeve is only movable, however,V when the tumblers are actuated by a master key. This action is due to the tact that theordinary key merely` moves thetumblers to the division line 133 between the key plug 129 and sleeve 132 While the master key moves the tumblers to Vthe dividing line 134 between the cylinder 126 and the sleeve 132.

Means for locking the gear lever 49 may comprise ay U-shaped catch 135 as shown more clearly in Fig. 18 movable between a guidepiece 136 integral with the casingof the lock and a guide piece 137 integral With the cover plate of the lock casing. The catch 135 may be provided with a finger piece 13S disposed upon an escutcheon plate 139 of the lock and the catch may thus be manipulated to engage a stud 140 secured to the lever arm of the gear lever 49. Y

When the catch is engaged with the stud 140 the bolt is in its projected position and it will be evident that the bolt can not be moved except by means of the master key Vas the catch is so shaped that the arm 130.

can not strike it.' Vhen such key is applied to the lock the sleeve may be rotated and the arm 131 caused to engage with an end 141 of the catch causing the catch to be moved and disengaged from the stud 140. A continued movement of the key causes an actu-ation of the lgear lever and a`retraction oit the bolt and latch in the above described manner .since the key cylinder 126 is provided with leverarms 130 and 131 which will engage the arm 43 of the gear or bell crank lever in a manner hereinbefore described.

It will be appreciated that with the present construction a key cylinder maybe used on both sides or may be integral with the les to the surface of the door,

Although a. preferred embodiment of the invention is shown and describedv herein it is to be understood that modiiications may be made therein Without departing from the spirit and scope ot' the invention as set forth in the appended claims.

lVhat is claimed is:

l. A lock comprising a casing, a guard, a bolt adapted to Vinterlock withl said guard', spindle means to actuate said bolt from one side of said casing, key-,actuated means ,to actuate said bolt trom another side ot said casing, and means to permit intcrcliangingv the positions of said spindle and said keyactuated means.

2. A lock comprising a casing, a guard, a bolt adapted to interlock with said guard, spindle means to actuate said boltt'rom one side of said casing, a cylinder lock to actuate said bolt Jrrom another side ol said casi ng, means to permit int-erchanging the po,- sitions ot' said spindle and said cylinder lock, and' a latch.

3,. A lock conprising a casing, a guard, a bolt adapted to interlock Wit-h said guard, a reversible latch and interchangeable means to actuate saidr bolt and latch.

it. A lock comprising a casing, lock mechanism supported by said casing, reversible means to operate said lock mechanism, and means offset with respect to the center of said reversible means for securing the latter to said casing.

5 A lock comprising a. casing, a bolt movable in said casing, and a. iianged guard eugageable by said bolt, said flange projecting toward said casing.

6. A lock comprising a casing, an interlocking bolt supported by said casing, key-v controlled means to actuate said bolt, manually actuated means to render said keycontrolled means inoperative, said key-controlled means being adapted 4to release said second-mentioned means.

7. A lock 4comprrising casing, an interlocking bolt supported by said casi-ng, and a reversible striking plate or guard cooperatingl with said bolt.

8. in combination vwith a striking plate, a lock comprising a. bolt movable in a. .curved path, a latch engageable with said striking plate, means 'for actuating said bolt and latch, said means being partially disposed outside of the path ot movement of said bolt., and a` cylinder lock, said cylinder lock haring a detached connection with said actuating means.

9. A lock comprising a. bolt movable in a curved path, bolt cooperating means, a strike having av plurality of apertures to engage said bolt, .said means including actuation means disposed outside or". the path ot' the bolt, said actuation means having a detached connection with its cooperating means.

10. A. lock comprising a casing, a guard, a bolt, ada pted' to linterlock vi'vith said guard, a latch, spindle means to actuate said bolt and latch trollfl one side of said casing, key operated means to actuate said bolt and latch troni. another side of said casing, and' means to` permit interchanging the positions of said spindle means and saidl key operated means.

A lock comprising a bolt, a. detachable gear to actuate said bolt, and a gear lever to actuate said gear.

I2, A lock comprising a` pivotal bolt having a radius arlii Qtlset with respect toy itself and plural interchangeable means toy actuate said bolt.

, 1255. A lock com Jrisinoa casino' a bolt disv f t) .D7

posed' in said casing, mechanism for operating said bolt, an insert piece having means toi permit actuation of saidv bolt operatipg mechanism, and a plurality ot means to hold said insert piece in iiXed position.

1,4. lockcomprising al casing, an interlocking bolt supportec'l by said casing, a guard withk which said bolt is adapted to interlock, a lever lcooperating with saidbolt and means including a, lost' motion. bifurcated cam for operating said lever.- r

1 5.' A lock comprising a casing, an interlocking bolt, a' guard adapted to cooperate with said' bolt, mechanism including a vcylinder 100k @Operate .Said bolt. said casing being adapted to receive saidcylinder lock in either one oit' two positions.

16. A lock comprising a casing, a. guar-d, a. belt adapted to interlock With said guard, operating means including means to actuate said bolt from one side o said casing, means for actuating said bolt from another side of said casing, and means to permit interchanging the positions ci:l said actuating means.

1"?. lock comprising a casing, a. curved bolt supported by casing, and interchangeable yoperati-ng means tor said bolt, whereby said lock is adaptable to right, or lett hand doors. Y

1 8. lock comprising a. casing, a curved bolt supported by said casing, a Ilat-ch having ai beveled surface, means to adapt said latch te right Vor left. hand doors by turning said beveled surface to tace in an opposite direction, actuating means for said latch and said bolt and plural independent actuating means for said latch.

19. A lock comprising a casing, a curved bolt supported by said casing, operating mechanism for actuating said bolt, said operating mechanism including interchangeable elements for adapting the lock to right and left hand doors.

20. A lock comprising a casing, a. curved bolt supported by said casing, and a latch, and interchangeable actuating means for said bolt and latch.

2l. A lock comprising a casing, an arc bolt, a latch, and common operating means including a plurality of levers, for actuating said bolt and an additional lever for actuating said latch.

22. In combination with a striking plate,

a lock comprising a casing, a bolt mounted in said casing andmovable in a curved path, into and out or' said casing, a latch bolt en gageable With said striking plate, operating means for said first mentioned bolt, operating means for said latch bolt, a. cylinder lock carried by said casing, and having a plug extending` into said casing, said cylinder lock being disposed outside oi" the path ot movement of said bolt and adapted to actuate said bolt andv latch bolt operating means.

Q8. A lock comprising a casing, a keycontrolled pin tumbler, a guard, a bolt adapted to interlock with said guard, means to actuate. said bolt from one side of said casing, means for actuating said bolt from another side of said casing, and means to permit interchanging the positions of said respective means.`

2li. A lock comprising a casing,` a bolt movable in a curved path, a latch, common means to operate said bolt `and latch, manual independent means to retract said latch, and means actuated from vvithin'the pathof said bolt to render said latch retracting means ineliective.

25. A lock comprising abolt movable. in a curved path, operating means for said bolt including pin tumbler-actuating mechanism for said bolt disposed outside of the path of movement ot said bolt, plural means offcenter to said mechanism to hold said mechanism against movement.

26. AV lock comprising a casing, a pivotal bolt, a. latch bolt, means to operate said pivn otal bolt and latch bolt trom one side ofvsai'd casing, and means to operate said pivotal holt Without operating saidlatch bolt from the other side of said casing.

n 27. A lock comprising a casing, a. pivotal bolt, means to, project saidbolt, automatic meansto hold the bolt looked When in projected position,ra latch bolt, aplurality of levers to operate said bolts and key-operated mechanism carried by'said casing to operate said levers.

28. A lock comprising a casing, a pivotal bolt, a latch, bolt projection means, automatic means to lock the bolt when in vits projected position, a plurality of levers to operate said bolt, key operated mechanism to operate the levers, and means to operate said latch.

29. A lock comprising a casing, a pivotal bolt, means to project said bolt, automatic means to hold'said bolt when in its'projected position, a latch, and a plurality of levers to retract the bolt and latch.

30. A lock comprising a casing, a bolt movable in a curved path, manual means to hold said bolt inoperative,landv a cylinder lock havinga plurality of levers, one lever adapted to release said manual holding means. Y

3l. lock comprising a casing, a pivotal bolt, a latch bolt, operating means Jfor said bolt, key-controlled means to actuate said.`

operating means, and a knob to actuate said bolt operating means Without actuating said latch bolt. i p

A lock comprising a casing, a pivotal bolt, a latch bolt, operating means for said bolts, key-controlled means to actuate said operating means, a knob to actuate said bolt operating means Without actuating said latch bolt, and an additional operatingV means and a knob to retract said latch bolt,`

33. A lock comprising a casing, a pivotal bolt, a latch bolt, means to operate said piv otal bolt, means to operate said latch bolt, common means cooperating With each of said bolt operating means to actuate theV same. manual independent means to retract said latch bolt, and means including a. lever to hold said manual means inoperable.

34. A lock comprising a casing, a pivotal bolt, a latch'bolt, means to operate said pivotal bolt, means to lock said pivotal bolt in a tired position, means to operate said latch bolt, common means cooperating with each ot said bolt operating means to actuate the same, manual independent means `to retract said latch bolt. and means including a lever to hold said manual means inoperable.

Inv testimony whereof I aix my signature.

OLIVE W. LANPHERE.

.y me

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