US1146737A - Indicator-lock. - Google Patents

Description

K. D. SENIOR.

INDICATOR LUCK.

APPLxcATIoN FILED Aue.2o, 1914.

Patented July 13, 1915.

l 75g/vw@ 72/071' COLUMBIA PLANOURAPH CO.. WASHINGTON, D C.

KAROP D. SENIOR, OF BOSTON, MASSACHUSETTS.

iNnroATon-LOCK.

intensiv.

To aZZfwwm t may concern:

Be it known that I, KARoP D. SENIOR, a citizen of the United States, residing atl Boston, in the county of Sudolk and State of Massachusetts, have invented new and useful Improvements in indicator-Locks, of which the following is a specication. y

This invention relates to improvements in indicator locks and has for its object to provide a lock particularly adapted for the inside of a door and to be operated only from said inside yto* lock and unlock saidy door, said lock having means arrangedgupon the exterior ofsaid door adapted to Vindicate the locked and unlocked condition of said lock.

Another object of the invention is to providemcans adapted to operate said indicator to indicate thecondition of theroom, that is to. say, whether the room has been properly set in order or not.

Still another object ofthe inventionis to provide a lock which is normally adapted to be operated to unlock the door only from the inside thereof, but which may in cases of emergency be operated 'y from the outside thereof.

The inventionconsists in the combination and arrangement of parts as set forth in the following specification and particularly pointed out in the claims. n

Referring to the drawings: Figure 1"is a front elevation of a lock and striker embodying my invention, portions of the casing of said lock `being broken away to more clearly illustrate the same. Fig.2 is a detail perspective view of the striker illustrating the manner in which it is to be attachedr to thedoor casing# Fig. 3 of the bolt together withits operatively connected parts and the means for reciprocating said bolt. Fig. 4l is a section taken on line may be secured either to a door or a door casing` preferably to the door Aby means of screws 9, while to the other member is secured a striker 10 having a recess 11 adapted to receive the end of a bolt. lThe striker 10 is provided/with earsv 12 extending longitudinally thereof each adapted to receive a Speccaton of Letters Patent.

is a detail "view Patented July 13, 1915.

Application fileanugust 2o, 1914. serial No. 857,785.

screw 13. The face of the material constituting the striker is extended inwardly at 14 and is also adapted to receive a screw 15 which is secured in the face of the door jamb when the striker is secured to that part, or

in the edge of the door when said striker is A bolt 16 is arranged to reciprocate in the casing 8 and'is preferably a double ended bolt, the ends 17 -and 18 thereof adapted to protrude from opposite ends of the casing 8 through holes 19 and 2O respectively iny said casing. Y

A plate2l is adapted to fit the inner side of the easing 8, which is the open side of the casing, and retains the bolt 16 in its proper position within said casing. rIhe plate: 21 and the front wall 22 of the casing are provided with cylindrical holes 23 and 211 rcspectivelyysaid holes alining one with the other. lnto these holes is inserted a cylindrical member 25, said cylindrical member having a lateral projection 26 which normally extends upwardlyoblique to a vertical plane extending through the axis of said member 25. to extend into a recess or notch 27 in the bolt 16, said member preferably constituting the means whereby said bolt may be reciprocated or moved from its locked to its unlocked position or into and-out of engagement with The projection 2G is adapted l they striker 10. Pins 28 and 29 are provided inthe casing 8 to limit thek pivotal movements of said cylindrical member, said pins being engaged by said lateral projection.

f A variety of'means may be employed for Y rotating themember 25 such for instance as a thumb'nut which may be secured thereon,

but not shown in the drawings. One of the objects of the invention however is to proaccessible only from the outside thereof, the

inner keyhole being plugged. For this reason the cylindrical member 25 is arranged to receive the key adaptedto ylock the door from'the outside. For this purpose the rotary member 25 is provided with a cylindrical hole 30 which constitutes an eye and a slot 31 extending from said cylindrical hole 30 downwardly and alining with a slot 32 formed in the front wall 22 of the casing, the pin 33 of the key being inserted in the cylindrical hole 30, while the web 34 of the key engages opposite edges of said member which constitute said slot 31 whereupon said cylindricalmember may be rotated. As the key and the cylindrical member are rotated Within the casing the web 34 of said key'is moved out of valinenient with the lslot 32 and will be held by the front wall of the casing within the keyhole as'long as the bolt remains in its locked position.

Operatively connected with the bolt 16, but preferably upon the opposite side of the door A from thatupon which said bolt is arranged is an indicator 35, said indicator ybeing adapted to indicate the positions of said bolt, that is to say, whetherV the same is in its locked or unlocked positions. The indicator preferably consists of a disk 36 arranged within a casing 37 to rotate .upon a projection or `pin 33 formed in said casing 37, said disk lhaving upon its face a plurality of differentiating characterspreferably consisting of segmental sections of:

different colored Celluloid, such as red and white as -at 39, 39 and 40, 40 respectively and secured in anysuitable manner thereto. The face 41 of the kcasing 37 is .pro vided with openings 42, 42 preferably diametrically disposed relatively to the axis f of the disk 36, while the red sections 39` 39 are likewise oppositely disposedr relatively vto the axis of said disk and so are the white vsections 40, 40, thus both red sections will be simultaneously displayed or both white lsections will simultaneously be displayed according to the position of the bolt,the white sections preferably indicating thel unlocked position of the bolt, while the redsections indicate the locked position thereof.

The casing 37 issecured to the outer yside of the door A as hereinbefore stated by means of screws 43 which extend through said door and from the inner side thereof, preferably from a plate 44 fast to said door, the inside of the casing 37 being open. As the bolt 16 is reciprocated in the casing 8 the disk 36 will be rotated by means extending through said door yandpreferably consisting of a fiat key or connecting rod 45,

. one end of which is adapted to fit a trans# verse slot 46 formed in the disk 36, said key being detachably securedwithin said slot by a spur 47 extending from one side of the slot 46 through a hole 47 formed adjacent the end kof said key. The `oppo site end of the key 45 is adapted to be in is preferably slotted at 51 to engage a pin 52 carried by the bolt 16 hereinafter more specifically described. By this construction it will be seen that each time the bolt is reciprocated the disk will be rotatedfrom one of its positions to the other. To assisti'n retarding the rotations-of 'the disk 36 the same is yieldingly held in its position upon the projection 38 preferably by means of a ,curved` spring .53, opposite ends of` said spring engaging the rear face of said disk. The central .portion of saidv spring is recessed at 54 to receive the hub of the disk 36, said central portion beingalsoadapted to lit a recess 55 formed in the face of a plate 56 which is detachably secured at the rear of the casing 37 preferably by means of lugs` 57formed on said casing 37 and enT` gaging depressions 53 in the adjacent face ofsaid plate, said spring 53 being interposed between said plate and the disk 36 and prevented from rotating with said disk by the recess 55. In addition to indicating on the bolt 16 preferably between lugs 62 and 63, and upon said slide ythe pin 52, here# inbefore referred to which engagesv the arm 50 in the slot 51, is formed. During the normal operation of the ,lockv or atr least when the bolt is moved from one'ofY its extreme .positions` to the other, the slide 61 ismoved therewith, a relative movement between said slide and said bolt at this time being prevented bya lever or tumbler 64 pivoted upon a'scr'ew 65 fast to said bolt and arranged preferably upon the opposite side of said bolt from said slide. The tumbler 64 has a projecting portion 66 which extendsbeneath said bolt 'to the opposite side thereof and is provided at said opposite side with 'a notch. 67 which is adapted to receive a ,depending lug 68formed on said slide, said projecting portion 66 being yieldingly retained in contact with said lug by a spring 69 one end vof, which engages a projection 70 on said tumbler 64. The opposite end of the spring 69 is secured to a lever 71 which is lprovided to engage the lateral projection 26 on thecylindrical member 25 Aand rretain said cylindrical member in its locked and unlocked positions. The end 72 of the projecting portion 66 is arranged to slidably engage the bolt 16 at 73 to guide said tumbler during its pivotal movements.

To operate the slide relatively to the bolt the key 59 is inserted in the keyhole 60 and the web thereof moved in the proper direction according` to the position of the bolt to engage said slide. Should the bolt be in the position indicated in Fig. 3 the key 59 will be rotated in the direction of the arrow a, the web thereof engaging a face 74; at the right hand end of a recess 75 formed in the slide 61, but before said slide may be moved by said key it is necessary to depress the tumbler 641;, therefore said tumbler is also engaged by the web of said key along the straight portion 76 thereof which projects suiiiciently to cause said projecting portion GG of said tumbler to be lowered to clear the depending lug 68. rlihe tumbler is held in said lowermost position until the slide has been moved su'l'liciently to cause the end 83 thereof to engage the inner face 17 of the end 17 of said bolt and withdraw the depending lug 68 from alinement with the notch 67. After the key has been turned completely around and the web thereof has escaped from the face 74 on said slide the tumbler is partially returneduntil the projecting portion 72 engages the lower end of the depending lug 68 as will be seen by the dotted positions of said members in Fig. 3. The key 59 may then be withdrawn as it is of no further use, it being impossible to return the slide to its normal position by means of said key for the reason that should said key be revolved in the opposite direction to that indicated by the arrow et the extremity of the web of said key will engage the end 7'? of the straight portion 7G of the tumbler instead of said straight portion, thereby preventing the rotation of said key in that direction. Should the bolt 16 be at the opposite end of its throw the key 59 will be rotated in the opposite direction and the web thereof engage the face 7S at the opposite end of the recess rather than the face 7i to more said slide until the projection Si engages the inner face 19 of the end 19 of the bolt, or should an attempt be made to return the slide 61 to its normal position the web of said key would strike the opposite end 79 of the straight portion 76 and thus prevent the depressing of the tumbler. During the operation of the slide G1 by means of the key 59 the pin 52 is moved to its intermediate position as indicated by the dotted circles 80, thus moving the indicator but half of its throw, consequently displaying half red and half white instead of all red or all white which indicates that the room has been properly cared for by the attendant and in readiness for the occupant thereof to enter which he or she may do by unlocking the regular lock of the door and after entering the lock 16 is reciprocated to lock said door upon the inside preferably by the same key. During this movement of the bolt the slide 61 will be moved together with said bolt on account of the friction between the projecting portion of the tumbler and the depending lug 68 of said bolt until the end'Sl is moved into contact with the end 82 of the casing 8 which prevents further movement of said slide, but permits the bolt to continue until said depending lug 68 alines with the notch 67, which is its normal position. Should said bolt be moving in the opposite direction from that just described the end S5 thereof will engage the corresponding end 8G of said casing and move said slide in theopposite direction to that mentioned. As hereinbefore stated any movement of the bolt 16 subsequently to the setting lof the yindicator in its intermediate position willy cause said indicator to be returned to its normal position by the means hereinbefore described.

The bolt 16 is operable only from within the room with the result that should anything' happen tothe occupant of the room and hebe unable to unlock the door any one wishing to render him assistance would be prevented from entering said room. For this purpose a keyhole 8? is provided in the door A alining with the cylindrical hole 8O and extending to the outside of said door, said hole 8"? being normally closed or sealed by a projecting portion 88 preferably formed upon the 'casing 37 which may be chipped olf along the line b-b Fig. 6 by a cold chisel or some like instrument when the case so demands.v permitting a master key 89, as indicated in dotted lines Fig. Li, to be inserted therethrough to rotate the cylindrical member25, said key being the same for all locks of` this type.

llhen it is desired to arrange the lock for a door swinging in the opposite direction from that referred to the cylindrical member, which is identical in construction at opposite ends, is removed and placed end for end, thus bringing the lateral projecting portion 26 upon the opposite side of the vertical plane referred to or in the position indicated in dotted lines in Fig. f5, although at this time the slot 81 will remain as in full lines in said figure, while the end 17 of the bolt will be protruding from the casing 8 rather than the end 19. lt will also be necessary to withdraw the connecting rod or key i5 from the slot fl-S and the indicator tumbler 50 rotated to aline the other of said slots 43 with said rod in order that the white differentiating characters may be presented to view at the openings l2 in the casing 37, thus putting said lock in a condition to be operated as hereinbefore described.

iis

`While I have herein shown and described one speciic embodiment of my invention forillustrative purposes, and have disclosed 'the invention is limited-neither to the mere details or relative arrangement ofparts, nor to its specific application herein shown, but that extensive deviations from the illustrated form or embodiment of the invention may be made Without departing from the principles thereof.

Having thus described my invention What I claim and desire by Letters Patent to secure is:

l. A lock having, in combination, a bolt, a slide mounted on said bolt, a tumbler adapted to normallyl prevent a movement of said slide relatively to said bolt, yand an indicator operatively connected with said slide adapted to indicate the locked and unlocked positions of said bolt, said indicator being f arranged to operate independently of said bolt.V

2. A lock having, in combination, a bolt, means to operate said bolt, a slide mounted on said bolt adapted tonormally move with said bolt, an indicator operatively connected with said slide, said indicator adapted to indicate the extreme positions of said bolt, said slide adapted to be moved relatively te said bolt to present a different character from that indicating the extreme positions of said bolt, and means rendered operable by a subsequent movement of said bolt adapted to return said slide to its normal position.

3. A look having, in combination, a bolt, a slide mounted on said bolt and movable relatively thereto, means to lock said slide on said bolt to prevent said relative movement, means operatively connected Withsaid slide adapted to indicate the eXtreme positions of said bolt, said meansalso adapted to indicate the position of said slide when the same has been moved relatively to said bolt.

4. A lock having, in combination, a bolt, a slide mounted on said bolt and movable relatively thereto, a tumbler adapted to normally prevent a relative movement between relatively thereto, a tumbler adapted to en-V gage said slide and lock the same en said bolt, a spring` adapted to yieldingly retain said tumbler in engagement with said slide, an indicator operatively connected With said slide adapted to indicate the movement of said slide relatively to said bolt.

6. A lock having, in combination, a bolt, a slide mounted on said boltv and movable relatively thereto, stops on said bolt adapted to limit the movements of said slide relatively thereto, and an indicator operatively connected with said slide.

7. A loclr having, in combination, a bolt,

a slide mountedon said bolt and adapted to be moved relatively thereto, an indicator operatively connected With said slide, means to reciprocate said bolt and said slide, means to reciprocate said slide relatively tosaid bolt, and means rendered operative by a sub sequent movement of said bolt adapted to return saidy slide to Vits normal position on said bolt.

8. A lock having, in combination, a bolt, aslide mounted on said bolt, a tumbler adapted to normally prevent a movement of said slide relatively to. said bolt, means adapted to move said slide in one direction on said bolt, and means rendered operative by a subsequent movement of said bolt adapted to move said slide in the opposite direction onV said bolt.

ln testimony whereof l have hereunto set my hand in presence of tivo subscribing Witnesses.

KARGP D. SENIQR. llllitnesses p SYDNEY E. TAFT,

MARGARET E. HORN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents,

Y Washington, D. C.

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