US1352694A - Time-lock - Google Patents

Description

J. S. RAY.

TIME LOCK. APFL|CATION FILED MAR. 21, 1919.

Patented Sept. 14, 1920.

A TTORNEYS.

UNITED STATES 'JAME's s. RAY, or DU LI ITI-I, MINNESOTA.

TIME-LOCK.

Specification of Letters Patent.

Patented Sept. '14, 1920.

Application filed March 21, 1919. Serial No. 284,120.

To all whom it may concern:

Be it rnown that 1, JAMES S. RAY, a citizen of the Jnited States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful improvements in Time-Locks, of which I do hereby declare the following to be a specification.

lily invention relates to time locks for doors and has for its object the provision of a simple time lock which may be conveniently used on store doors or other common door It also has for an object the automatic recording of the time that it is opened.

In the drawings, Figure 1 is a side elevation of said invention in locked position, partly in vertical longitudinal section approximately on the line A B of Fig. 2. Fig. 2, is a horizontal section of said invention approximately on the line C-D of Fig. 3. Fig. 3, is a side elevation of said invention, corresponding to Fi 1. Fig. 4:, is a fragmentary side elevation of the hereinafter described hold aclr latch and means for operating and retracting the same.

In the drawings 1 ma lock case o1 any suitable structure preferably divided by a partition1 so as to provide a bolt cham ber 1 and a clock chamber 1. In one form of my invention the bolt chamber is adapted to contain the bolt 2. provided with guide rods 3 and -1- which rods extend through a partition or plate 5. Forward of said partition plate are positioned springs 6 of any suitable structure adapted to. react against the forward face of said partition plate and the rearward, or inner end of said bolt.

Said clock chamber contains a clock of any suitable structure including a main spring 7 winding stem 7, an hour stem 8 and any suitable transmission mechanism adapted to be driven by said spring and to drive said hour stem, as the gears and pinions 9, 10, 11, 12, 13, 14 and 15 and spider spring 15 Said cloclr'also includes a dial plate 16 and support'plate 17, both mounted on said hour stem and adapted to turn therewith. Said plates may be of any suitable material, but said support plate .is preterably of metal and said dial plate is preferably of white celluloid. If desired said dial plate and said support plate may be or the same material and constructed as a single plate or unit. A stationary plate 18 is also provided in said clock to support said transmission mechanism and for the usual purposes 01 similarly disposed plates as well known to the art.

Said partition 1 has a passage 1 formed therethrough forward of said stationary plate 18 which passage is normally covered by a drop gate 19 mounted in guides 20 extending from said partition 1 which drop gate is adapted to move upwardly, in an arc eccentric to said support plate, to open position. Extending from said drop gate and through said passage 1 is a finger 19 adapted to be engaged by a post 21 extending from said support plate 17 by means of which post and finger said gate is lifted for a short period once during each rotation of the support plate 17. Since the gate rises in an arc eccentric to said support plate, said finger will finally be drawn out of engagement with said post, whereupon the gate will drop. The tree end of said rod t is adapted to extend so close to said gate when the gate is closed that the bolt 2 cannot be retracted far enough to unlock the lock, or door upon which it is mounted, since a very short retraction of the bolt will bring the end of the rod into contact with the obstructing gate.

In the form shown, that portion of the rod 3 which extends forward of the plate 5 is positioned above the rod l, but in rear of said plate 5 the free end of the rod 3 is bent downwardly and outwardly and rearwardly so that it lies in the same horizontal plane :as said rod 1. Pivotally secured. to the free or rearward end of said rod 3, is a finger 3 provided with a marker of any suitable nature such as a pencil Said finger is adapted, when said bolt 2 and rod 3 are retracted, to extend through an opening 1? in said partition 1 and said marker is adapted to mark said dial near its periphery. Said dial preferably has a shallow bead or roll formed thereon at or near its periphery, over which said pencil is adapted toride, thus insurin the clear marking of the dial thereby. baid finger 3? is limited in its pivotal movement in one direction by a spring 3 and in the opposite direction by a stop. Said clock is prefer-- ably not provided with a minute hand, and the dial itself is substituted for the usual hour hand. But a minute shatt 2' is included, upon which the hour stem is journaledf if desired a pointer 23, adapted to be manually set at any hour desired, may

be mounted upon said dial or hour stem and rotate therewith to show the hour at which the clock is set to open said gate, and at point-between said plates 18 and .17 and 'may be reached at a certain period through an aperture 27 in said dial and plate 17. In equivalent manner the clock may beset from the dial side, by turning the minute shaft, toiopen the gate at the appointed hour. Said dial and supporting plate may also be turned from the outside of thedoor by making a keyhole through said door through which the opposite end of the minute shaft may be reached. In the form shown, a suitable hair spring, balance wheel, and escapement are deemed to be included as parts the clock as will be well understood by those familiar with the art of clock structures, but are omittedfrom the drawings as well known details of structure "not essential to be particularly described or shown, In order to hol l said bolt in retracted position during the day, said lock is provided with a manually operatable hold back latch of any suitable construction,

ada oted to enga e anotched 111 2 formed on and extending rearwardly from the retracted bolt. Said hold backlatch preferably comprises a bar 28, adapted to be reciprocated in guides 29, a spring 30 pro vided to "actuate said in operative direction and any su table means, as a bell crank 31 and a push rod 32 is provided for retracting said bar, said push rod extends through the door and may be operated from the outside thereof. Said reciprocatable bar has formed thereon a'shoulder 28 normally 1 extending into the path of said lug 2 and in operation adapted to engage the notch in said lug. Said shoulder is beveled on the side toward said lug to correspond approximately with the beveled end of said lug.

Said hold back latch, or'slide stop, is preferably, as shown, adapted to be retracted fromthe outside of the door, but,if desired, thesame or a similar stop may be retracted "instead, or in addition, from the inside of the door. The free end or nose of said bolt 2 is" preferably beveled on both sides at its 7 forward end.

Assuming the bolt to be retracted and said slide stop engaged, when it is desired to lock the door the manager or operator opens the glass cover and turns the dial so as to set the gate-lifting post 21 a predetermined dial-time backward from its point of conthe gate should then be scribed is intended tact with said gate finger, the termination,

of said time being the time intended for the opening of the gate. If for convenience a pointer hand is provided, he sets said pointer hand to point to the dial hourat which the bepositioned below the dial hour XXIV on a2l-hour dial, and that it is desired that ten hours shall elapse beforethe door can be normally-opened, the dial will be set so that said dial hour XXEV will be ten hours bacl-i from the ate and the dialfigureat hour of setting the clock is then 9 P. M. or the ninth hour, the actual'time for opening the door ten hours later, would be 7 A. M. or the XIX dialhour to which hour the pointer should peint,-'that is, the gate lifting pest'and dial mark 2% will pass the date at the 19th hour of a Qihour period or at the 7th hour of a 12 hour period. The

operator then goes out, closes the door and from the outside retracts said slide stop by means ofthe push rod and bell crank, where upon the springs on the rods 3 and 1- thrust said bolt into operative position and the gate falls. At the opening hour the gate is lifted for a short-period, during which the person appointed to open the store must be present to unlock the door orthe gate will fall and he cannot unloclrit without a special key, intended to be carried only by the manager for turning the dial from the outside. The lock of my invention herein deto be used in addition to a separate door lock in which the clock features are omitted. Assuming that the appointed clerk is present at the appointed time, he unlocks the door by first unlocking the separate lock (not shown) and pushing the door open, the beveled nose of r the lock bolt of my invention beingforced If the actual backby the hasp, causing the rod 4 to eX,-

tend under said gate and said marker to mark said dial. At the same time thebeveled end of the lug 2 engages the beveled side of the" shoulder 28 and forces said shoulder out of its path, said shoulder being immediately return ed by said spring 30 into the notch of said lug 2*, thus holding sald bolt in retracted position.

Assuming that the clerk is not present at the time appointed for opening the lock, the

gate falls again afterthe disengagement of the fingerlQ from the opening post 21 and the lock cannot then be opened without the use of a special dial-turning keyadapted to be applied to the outer end of-the minute shaft whereby the dial can be'rapidly advanced to bring the gate-opening post 21 again into engagement with the finger 19 to reopen said gate. If desired,the marker may be omitted. It is-obvious that the structure of my invention maybe modified in various details within the spirit and scope of certain of my claims.

What I claim is- 1. The combination with a suitable case, 01": a spring actuated bolt adapteo in operative position to extend therefrom; a clock mechanism including a minute shaft an hour stem concentric with said shaft, means for driving sail shaft and stem, a stationary plate, a plate mounted upon said hour stem concentrically therewith and adapted to rotate therewith, said rotatable plate eing approximately parallel with said stationary plate an spacer therefrom; a rod extending reaiwvard y from said bolt toward at apted to exe space between said clock mechanism and tend a distance into th said two plates when saie bolt is a gate positioned across the ment of s extending from said gate into said space; means carried by'said rotatable plate and adapted at some time during the rotation of said plate to engage said and thereby lift said gate; means for guiding said gate in a path eccentric to the path or said finger-engaging means, whereby said finger will be drawn out of on ment with said racted; path or movea; rod toward said space; a finger blu engaging means when said gate is liited.

'2. The combination with a suit-able case, of a reciprocable bolt adapted to extend therefrom in operative position; a clock mechanism including a minute shaft, an hour stem concentric therewith, means for driving'said minute shaft and hour stem,

plate mounted on said hour stem concentrically therewith and adapted to rotate therewith; a rod extending rearwardly from said bolt toward said clock mechanism said rod being adapted to extend at its free end a short distance across said rotatable plate approximately parallel therewith when said bolt is retracted; a gate positioned across the path of movement of said rod toward said clock mechanism; a finger extending from saic gate a short distance across said plate approximately parallel therewith when said gate is in operative position; a post extending from said rotatable plate, said post being adapted at some time during the rotation of said plate to engage said finger and lift said ate; guides for directing the movement or sai-c gate tangentially from said rotary plate while said gate is being lifted, whereby said finger is drawn out of engagement with said post when said gate is lifted to its maximum height; a dial formed on or secured to said rotary plate whereby the position or said post with respect L0 said may no eetermined; a second rod ei-itending rearwardly rrom said belt; a marker carried by said second red at its ree end, said marker being adapted to aid dial near its periphery during JAMES S. RAY. Vi itnesses D. G. Gnnnnanr JAMES L. WATSON.

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