USRE17797E - William k - Google Patents

Description

Sept. 16, 1930. H. s. CHASE r:r AL Re. 17,797

CONTROL FOR LOCKS OR- THE LIKE Original Filed Jam.v 24. 1924 3 Sheets-Sheet 1 Sept. 16, 1930. s, c s Er AL Re. 17,797

CONTROL FOR LOCKS OR THE LIKE Original Filed Jan. 24, 1924 3 Sheets-Sheet 2 5 Mum/1 f2: HER BY A'ITO EY Sept. 16, 1930. H. s. CHASE Er AL R 17,797

couTizoL FOR LOCKS on THE LIKE I Original Filed Jan. 24/1924 3 Sheets-Sheet s N N $1 p g L.

'N u I M Q: N w

. WM 3 a l NVENTOR HORACE 5. (f/ASE.

and

Reiaued Sept. 16, 1930 UNITED srAi'Es HORACE s. cnasn AND WILLIAM It. FLETCHER, or New YORK, N. Y. SAID FLETCHER? ASSIGNOB, BY MESNE ASS PATENT oFHc-E" xemunn'rs, 'ro SAID cnasn' coIrrnoI. r03 LOCKS on THE Lixn Original). 1,724,792, dated August 18, 1929, Serial Ito-688302, filed January 24, 1824. Application for v reissue filed Apri1'12, 1930. Serial No. 443,899.

.Our present invention relates to systems of' combination controls such as doorlocks and the like. We take as an example a situation which may be profitably considered as involving a characteristic problem and a practical .solution therefor.

' In large hotels, apartment houses and the like great difliculty has been experienced with room or apartment keys. There is, first, the. 19 serious annoyance due to the loss of keys, and

seriousproblem involved in the ease with w ich hotel keys may be du licated for unlawful purposes. There is urthermore the diflicult in such States as'require that a the very room be loc ed against a guest or tenant who has not paid his bill, and other and various difliculties and complications too numerousto mention but all of common experience. A

at variety of solutions have been attempted ift so far the usual hotel and apartment house -is fitted out with key locks and the ancient troubles continue to persist. 1

Our in'ventidn contemplates a control for a" lock b which acombination feature is introduce Ordinarily combination locks are.

diflicult to set and are difiicult for the average individual to manipulate while affording little difliculty for the skilled crook to work.

In accordance with our invention a combination is very readily set and very easily operated b anyone havin the combination. It 'provi es :1 number 0 advantages and possibilities. These will be pointed out further in the specification as we proceed to the diswhich we have selected as illustrative. f This we show in the accompanying drawings throughout which and the specification refer- Fig. 4 is an elevation of the box with a side:

- removed.-

Fig. 5 is a detail section of the dial hands,

cussion of, an embodiment ofour inventionenc'e characters are employed in the usual.

the system and its wiring.

Our 5 stem in the embodiment shown comrises t ree general factors which may first e considered in regard to the-general fllIlCr Fig. 6 is a diagrammatical indicationv of tion, In Fig. 1 is shown the "outer-face} of door X of'a wall. cabinet Y.' This door X is in fact a panel carrying two columns of push buttons are preferablyzassi-gned numbers and in the other letters by which the individual buttons may be designated. These buttons constitute an exposed key board by which the guestor other person authorized to enter the room may close, in the control system, certain predetermined circuits which have been sebuttons to there preferably beingten or more buttons in each columin In one'column the,

lected to constitute the combination on which the control is set to work. As will hereafter be explained more-in detail, each of the buttons :2: iswired in on an independent line which is connected with a inclusion in the combination the current will be transmit-tedinto the control system.

The various lines from the buttons :10 are each connected with one of the contact-points 2 set as a dial on the inner door or panel Z. This dial is in effect a, four-bladed switch, the dial form being found convenient both on account of compactness and ease in setting. I

The dial has four arms Z Z Z Z, which are arranged somewhat-after the manner of .the hands of a clock and are of such length that each hand may contact with any one-of the points 2. These hands have posts each insulated from the other and passing through the plate on which they are mounted and are each separatel wiredto one of the actuated elements of t e system. By setting these hands on diife'rent predetermined points a as indicated by the'number or letter assigned any combination of four or less letters or numbers ma be provided for so that when theselected ,uttons are pressed each button circuit is connected through the dial with one of the actuating devices of the system.

At this point it should be noted that "order to prevent the working of the combination by experiment we have provided in our system means necessitating a predetermined sequence of operation of the buttons in order to obtain a successful actuation of the lock.

Thisleads us to a brief consideration of the actuating mechanism by which. the lock is opened. j

In any concealed andprotected location,

but preferably within a wall box such as Y,

we arrange a battery of electrd-magnets. In

the four element combination form shown we I provide four-of such electro-magnets 21,22,

23, 24. Of these the magnets 21, 22 and 23 operate the switches 21, 22, and23 respectlVely. V I

The Winding of the magnets 21 and 24 p I are connected directly back'to the battery or other source of electrical. energy; while the i spectively connected back to. the

The switch windings of the magnets 22 and 23 are'trebattery through the'switches 21 and 22.

' v 23 operated by the last magnet 230i the com- Y I bination controls the lock-operating circuit.

, built up throughthe series to the final mag- The switches are operated bythe armatures 21*,22, and 23 so that when each magnet is energized in its proper turn a circuit is -24 so thatit will be moved forward under the influence; of the energized magnet 24 and back under the influence of the spring which holds the-armature 24 when the latter isreleased from the magnet 24. The switch pins pending switch 21 or'22.' However, when 21 and 22", on the contraryarenot connected to their'respective' armatures 2 1 and 22 but merely rest against them. Thus, when either "of the armatures 21 or 22 is drawn toward its magnet 21 or 22 it pushes the correspond: ing switch pin 21 or 22 into position to form a connection betweenthe leaves of the corres t e armature is released, and returned to its released position by means of its supporting spring it does so without afiecting theposi- .tion of the switch pin 21 or 22". Thus the switch 21 or 22 remains closed until its switch pin is moved away from contact with.

its leaves by the operation of the push bar 24".

The armature of the last magnet'24-operates a kick-01f for the first two switches thus breaking the established combination circuit.

If it be desired to leave the combination established the fourth button of the combination is not pressed. Until the fourth button is pressed the lock may be operated by simply pressing the third button of the combination. 7

For the purposes of the present disclosure 'it will be understood that the actual lock of tabli'shed the third button operates the door catch just as the single button operates it in ordinary installations.

The above constitutes the general elements in the form of our invention chosen for discussion herein. We will now describe the various parts more in detail.

As before described, the-panel X, Fig. 1, may conveniently constitute the door of a wall box Y which may be set conveniently adjacent the door frame or in the frame it.- self. In addition to the push buttons w it is referably provided with a small electric lig t L which may be switched on and oil as by the switch Z, Adjacent the bottom of the door we preferably'also provide a switch S which is cut in on the wir ng, as will be hereinafter described, so that if desired the cur- .rent may be cut off and the system thrown out of commission.

Referring to Fig. 4 which is an elevation of the box with side removed, it will be seen that the inner panel or door Z is set somewhat within the box or cabinet and spaced from the panel X sufficiently to give clearance for the dial hands Z Z Z", Z. The hands are so formed that they ma pass each other and yet each one may be rought into contact with any one of'the contacts 2. The posts of the hands are concentrically nested as shown in Fig. 5, and insulated from each other and each one is connected by a line, as at 101, 102,

'103, 104, with its correspondingelectromagnets 21,22, 23 and 24. r

The magnets themselves as appears from Fig. 3 and side elevation of Fig. 4, may be conveniently arranged on the back of the wall box, or. more conveniently on a removable panel Y. The magnets 21 and 22 are arranged adjacent with their armatures 21", 22 similarly disposed. v

In closing, each of thearmatures 21*,22 and 23 operates aswitch pin as 21", 22, disposed in alignment with a pair of spring contact lips ,as 21, 22. The magnet 23 has its armature connected with a switch pin 23 alignedwith a. air of spring lips 23 while the armature o the magnet 24 1s connected to a kick of! or push bar 24 the head of. which, is adapted to engage the flanges of the switch ins 21", 22", so as to withdraw the switch rom between its contact lips and sepa rate the armature's 21', 22 of the magnets 21 and 22 from the adjacent poles of theunagnet cores. It is therefore the function of .the magnet 24 to break the circuit which has been built up and thus leave the door lock ino or able until the. combination has again built up. i i

winding of the ma This kick off or circuit breaker also serves as a factor in case of attempt to work the combination by experiment, because if the button controlling the magnet 24 be pressed out of turn it immediately breaks any circuit that has previously been established.

Referring now to the diagrammatical showing of Fig. 5, it will be seen that the teridentifications.

wired, as at 111 to 120 and 311 to 320 inelusive, to their respective contacts 2. As before explained, the dial hands Z Z Z Z, are wired through respective lines 101, 102, 103, 104-to their respective ma ets, the line 101 leading to the winding of t e magnet 21, the line 102 leading to the winding of the magnet 22, the line 103 leading to the winding of the magnet 23, and the line 104 leading to the winding of the magnet 24,. The other end of the winding of the magnet 21 is led through a wire 212 to the ground strip A connected back to the battery 252 through the binding post AA. The winding of the magnet'22 is similarly connected through the wire 222 and the switch 21 and binding post A'A back to the battery. Since the switch 21 is open until the magnet 21 has been operated Obviously the winding of the magnet 22 cannot be energized until after the operation of the magnet 21.' Similarly also the gnet 23 is connected through the wire 232 and the switch 22 and binding post A-A back to the battery. Thus, if the magnets 21 and 22 have been previously energized so that the switch 22 isclosed the operation of the button 10 will serve to close the circuit through the wind- .ing of the magnet 23 and thus to-close the lock-operating switch 23. If, however, the switch 22 has not previously been closedthe button does not control the circuit; and even though the button 10 is operated to close its switch, nevertheless the circuit remains open at the switch 22 so that the operation ofthe button 10 is of no effect. The

winding of the magnet 24 is connected directly to the ground strip A and thence back through the binding post AA to. the battery 252.

The main lock circuit we have indicated as connected in on the switch 23 one leaf of which is electrically connected to the binding post AA and the other to the binding. post BB. The binding post BB is also connected to the line 250 which leads to-thc door 'latch operating mechanism and from thence back to the battery 252 e. g., through the line 253. The binding post A-Ai is also connected to the line 251 which leads tovthe opposite pole of the battery 252 and thus completies the circuits through the magnets 21, 22, 23 and 24.

In the form shown in Figure 6 we have diagrammatically illustrated a series of push buttons as indicated at 0:. In the form shown, the right hand column of buttons carry number indications which may be in sequence or otherwise, and the left hand series carry let- This use of both numhers and letters has some advantage but the push buttons may be given an character indications, or colors, or other di erentiation may be used.

tery 252. From the batteries the line 251 leads to the binding post AA, Fig. 3, from whichit will be seen that it connects directl In Figure 3, we have indicated the line241 as the connection of the winding, of'the magnet 24 with its own binding post 240-through which it is connected by the line 104, dialarm Z, its contact point M and the line 117 with the button M. This constitutes a characteristic circuit by which the wiring plan will be understood. 7

It is now desirable to consider the arrangement by which the'proper sequence of actuation is compelled. Take, .for example, the first number, 1, of the given combination, 1--7-10-- We have indicated the line 311 running from the button a: to the corresponding contact point Z on which the arm Z ispositiOned. This arm isconnected, as indicated, by line 101 with one end of the winding of the magnet 21'. The other end of the winding of the magnet 21 leads by a line 212 to the ground strip A and thence through the binding post AA and the return lead 251 back to the battery 252. Similarly the cor- One side of each button is connected by a y with the wlndlngs of the magnets 21 and 24.

responding ends of the windings of the magnets 22 and 23 are connected back to the battery, but only through the' switches 21 and 22 respectively controlled by the preceding magnets of the combination. In Figures 3 and 4 the lines 101, 102, 103 and 104 are shown as connected to suitable binding posts indicated by the numbers 210, 220, 230 and 24,0

respectively and from these binding posts the windings of the magnets 21,22, 23 and 24 are connected by short leads 211, 221, 231 and 241, respectively. These, however, are only for convenience in the set-up and for simplicity have not been separately indicated on the wiring diagram shown in Figure 6.

It will thus be seen that the main line connection which is established" by the actuation of the electro-magnet 23 through its switch 23, one side of which is connected to the battery and the other sideof which is connected by the line 400 to the binding post BB can only be established by a pressing of the buttons 1, 7 and 10 in the proper order and without pressing the button M out of its order.

actuations of the magnets 21, 22 and 23 have been completed. When the magnet 23 is energized by pressing the third number of the combination in its proper order, i. e. the button 10, the line 400 will be energized and the lock will be opened.

. We have not attempted to show the lock herein, as any type of magnetic lock may be used in connection with this system. As before expressed, this system may be variously utilised iorall sorts of purposes, the matter of lock being discussed merely as an important and illustrative form. The device may also be variously wired in manners which will readily occur to those skilled in the art.

It is also obvious that various well known 'control devices, a plurality of independent contacts circularly disposed so that each contact is engageable by one or more switch arms to selectively establish the said devices in circuit with any predetermined contacts and exposed independent circuit closers, one for each contact and electrically connected therewith whereby a predetermined circuit combination may be completed to establish or break the control circuit, and an electromagnetic circuit breaker for destroying any previous circuit combination, the circuit for said circuit breaker being dependent upon the setting of one of the arms of the'selective circuit setting device and one of the exposed independent circuit closers.

2. A lock control comprising a plurality of electric circuits, a normally open circuit closer for each, a plurality'of electromagnets' having the circuits thereof electrically interlocked to effect successive operation to establish a control circuit, each electro-magnet when energized being arranged to close a pair of contactsin the circuit of the succeeding electro-magnet to be operated whereby successive operation of the electromagnets is assured, a selective circuit setting device comprising a plurality of switch arms concentrically arranged for movement about a common axis one switch arm being provided for each electromagnet, one of each of said elec- The button Mis not to be pressed until the connection is set up by the tromagnets "being connected to one of each of the selector switch arms, a plurality of independent contacts so arranged that each is engageable by any one or more of said selector switch arms to selectively set the circuit for said electromagnets as to require a predetermined sequence of operations, and a series of push buttons corresponding in'number to the contacts of the selector device one of each of the selector contacts being connected to a correspondin push button, whereby any redetermined circuit combination as determined by the set of the circuit selector device, may be built up by successively closing the push buttons in predetermined order to establish the control circuit, and an electromagnetic circuit breaker for destroying any previous circuit combination which may have been established, the circuit for said circuit closer including therein, the contacts of the circuit selector device and the push button circuit,

'the circuit for said circuit breaker being independent of the circuit for the electromagnets.

3. A look control comprising aplurality of lines adapted to be electrically energized, an exposed key board therefor, a plurality of push buttons on said board and consti tuting normally open closers for said lines, a plurality. of electro-magnets successively operable to establish a lock circuit, a'selective circuit setting device including concentric switch arms one for each .electro-magnet and electrically connected therewith,a plurality of circularly arranged independent contacts disposed about the switch arm axis each engageable by an switch arm selectively to establish the sai devices in circuit with any predetermined contacts, one of each of said independent, contacts being each electrically connected to one of each of the for said electro-magnetic circuit breaker being dependent upon a predetermined setting of the selective circuit setting devices andthc pressing of a push button.

4. In a lock control system, a plurality of electrically controlled devices successively operable to establish a control circuit, ,a selective circuit settin device comprising switch arms concentrlcally arranged for movement about a common axis, one switch arm being provided for each device, and being electrically connected therewith, a; plura ity of independent contacts so-arranged that each contact is engageable by one or more of said switcharms selectively to establish the said devices in' circuit with an predeterminedrontacts, exposed indepen 5m: circuit closers, one for each contact" and electrically connected therewith whereby any predetermined circuit combination may be completed to establish the control circuit, and an electro-magnetic circuit breaker for destroying any previous circuit combination which ma have been established, the circuit for said circuit breaker being dependent upon the position of one of the arms of the selective circuit setting device and one of the independent circuit closers,

In testimony whereof we aifix our signatures.

HORACE S. CHASE.

WILLIAM R. FLETCHER.

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