US2347942A - Watchman's tour system - Google Patents

Description

May 2, 1944. P. M. FARMER Erm.

I WATCHMANS TOUR SYSTEM Filed Sept. 18, 1943 2 Sheets-Shed. l

yllllw llf!!!|||| FIG'I I I, I V'. 22 lo v2 3 4-.v' |5 y'l' s 9 lor'ij; I un 4 MINIMUM??? FIG. 3

D. w. BLosER BY w..1. KLEINKNECHT mi f f'f ATTORNEY May 2, 1944 P. M. FARMER ETAL.

I WATCHMANS TOUR SYSTEM Filed Sept.. 18, 1943 2 Sheets-Sheet 2 mvEN-rons P. M. FARMER D.w. BLosER BY w..J. KLEINKNECHT Zlfm ATTORNEY Patented May 2, 1944 Y entre UNITED STATES PATENT OFFICEY WATCHMANS TOUR SYSTEM Paul M. Farmer, West Orange, and Dwight W.

Bloser, ri'eaneck, N. J., and William J. Kleinknecht, Norwalk, Conn., assignors to American District Telegraph Company, Jersey City, N. J., a corporation of New Jersey Application September 18, 1943, Serial No. 502,918

30 Claims.

This invention relates generally to signaling systems, and more particularly to signaling systems used for the purpose of supervising the activities of watchmen where it is desired that each watchman complete a prescribed tour and report to a central station at the end of the tour. This application is a continuation in part of our copending application Serial No. 312,710, led January 6, 1940, for Watclmans tour system.

This system comprises a number of Watchmens tour stations situated in different parts of a building or other enclosure for the purpose of compelling a watchman to inspect given areas at prescribed times and within a certain overall time period. The tour station located at each end of the tour is adapted to transmit a supervisory signal to a central point, the station at one end usually indicating the start of a tour and the station at the other end indicating the nish of the tour. Each of the other stations on the tour contains a register operating member which conditions a register for operation by the next succeeding station only. Therefore, the watchman carries the register from station to station, and it is operated or conditioned at each station in such a manner that the watchman is compelled to visit the stations in a predetermined sequence, since any deviation from the prescribed tour, such as omissions of stations, or attempts to operate in a different sequence will prevent the watchman from properly actuating the register at any other station. If the Watchman has operated his register in accordance with directions, he can transmit a supervisory signal at the nal station, whereas failure to operate his register in the prescribed manner will prevent the register from causing transmission of the signal at the last station on the route. The transmitting stations are adapted to control a delinquency signal, and if they are not operated by the register within a prescribed period of time the central station operator is informed of a watchmans failure to start, or to properly cover, his route within the given time limit. Thus, it is not necessary that every station be capable of transmitting report signals.

Accordingly, the primary object of this invention is to provide an improved tour system which compels a watchman to cover a prescribed area on his tour.

A further object of this invention is to provide a tour system having a number of tour stations, each of Which conceals the register and its peration during the time that it is being operated at the tour boxes.

A further object of this invention is to provide a watchmans registerand box which are selfoperating to the extent that manipulation of the register by the watchman is reduced to the minimum.

Another object of the invention is to provide a register which cannot be tampered with in order to avoid the completion of a prescribed tour.

Still another object of this invention is to provide tour stations, both preliminary and transmitting, which are tamper proof.-

Still another object of this invention is to provide a register which gives no indication of the changes occurring therein during the operation by the tour box. A still further object of this invention is to provide a register which cannot be picked by the watchman to allow him to transmit a report signal without making the prescribed tour.

Further objects and advantages of this invention will be apparent from reading the attached specification taken in connection with the accompanying drawings, wherein:

Fig. 1 illustrates diagrammatically a system of watchmans tour stations; y

Fig. 2 is an end view of a preliminary tour station;

Fig. 3 is a sectional view of a preliminary tour station showing the register drawer in open position and containing the register;

Fig. 4 is a sectional view of Fig. 3 taken on line 13 4;

Fig. 5 is a cross-section of a transmitting tour station with the register in its Operated position and partially broken away to show the key;

Fig. 6 is a cross-section of Fig. 5 on line 6 5;

Fig. 7 is an enlarged plan view in cross-section oi the register;

Fig. 8 is a section of Fig. 7 on line 8 8;

Fig. 9 is a section taken on line 9 9 of Fig. 7;

Fig. 101s an end view of the register;

Fig. l1 is a section taken on line H Il of Fig 7; and

Fig. 12 is a perspective of a portion of the key shown in Fig. 5. l

The watchmans tour system includes, in accordance with this invention, a plurality of tour stations l to lil, shown in Fig. 1, for example, which are situated at different locations along the watchmans route whereby, as the watchman progresses along the route, his register, such as that shown in FigsS 'and '7, is conditioned by register is operated by each of thestationsY in a'. y

progressive manner so that it'is'dn condition at each successive station to be Voperated by that station only, and when he has completed his tour. z i

the register is in condition to operate the trans-,

mitting station which sends Va' supervisory sig;

The member I3 supports a key I4 which is aligned in such a position that the register engages therewith when the drawer is returned to its closed position, the key I4 being so cut that it will unlock the register only if the predetermined previous station has been visited by the watchmanf- Thespring 21 is provided for the purpose of maintaining the drawer in its closed position except when the watchman forcibly withdraws the same for the purpose of inserting his register.

lhe transmitting stations I to I are shown in detail in Fig. 45V and are similar to the preliminary stations except that the base member I3 supports transmittingV contacts 22 and switching ` contacts 28 and 29. 'Ihe key I4, shown in detail Vin Fig. 12, includes a xed portion 30 which is attached to the base member I3, a shaft 3| rotatnal over a transmission line to a central point' where it is recorded or otherwise indicated by any suitable device Il. 'If the watchman-fails to,operate Vhis register by visitingthe tour stations inwthe prescribedsequence,` or if he omits a tour station,rtheregister will not be incondition tooperatey the transmitter, and since he is given a predetermined amount of time to comv plete the toury he will failto transmit a supervisory signal beforethe expiration of that time, and thel attendant will be informed of hisI failure by a delinquency'signal. j

Stations 2 to 9,shown in Fig. 1 of the drawings, are known ask preliminary stations, and an example is shown invFigs. 2, 3 and 4 which will now be described in detail. Y The stationl includes anV anchoring basel2 which is secured to a supporting wall by screws or any other suitable fastening means. Care is taken, however, to so fasten the base I2 to the wall and plate I3 to base I2 that special tools are necessary to remove the station box from the wall or to disassemble A plate member I3 is .supported on the base I2 and has a casing I5 attached thereto. VThe casing member encloses and supports `a cylindrical drawer I6 having a top orvcov'er II and a bottomportion for receiving the register IB shownY inr Figs. 3, Vand '7.to'11.. The end of drawer I6` is provided with lugsl9 for engaging the'key 29 on register I8 for positioning the same inoperative relation to the keyhole 2|, as shown in Figs S and 4. When the register is inserted in the drawer, itlis still possible to grasp the same and withdraw it, as'the -top of the drawer extends below the center line of the register, as shown in Figs. 2 and 3. The top or cover of the drawer has a lug portion23 which meets the top of the casing at'the point 24 Whenthe drawer is opened. The upper rear portion of the drawer is provided with a rack 25 which engages with the pinion sector 25 on the lug 23 so that, when the drawer is almostV entirely open, the coveris automatically opened. It shouldbe noted that the coverof the drawer cannotbe opened until the Vdrawer is substantially completely withdrawn, thereby preventing the watchman from observing the characteristics of the key andthe interior of the station. It is intended that any suitable means may be providedfor opening the cover so long as it operates to keep the cover in closed positioniuntil the drawer is substantially open. Completewithdrawal of drawer I5 is prevented whenthe flanges on the bottom portions of the drawer I6 and casing I5v engage one another, as indicated in Fig. 3.V

able within the key, a freely rotatable key portion 32.which is normally locked. by the spring pressed ball 33, andan operating lug portion '34. The shaft 3l is secured to a contact operlating member35 whereby rotation of the lug 34 causes operation of the transmitting'contacts 22, the purpose of which will be fully explained in connection with the operation of the register. Spring-pressed pin 38 normally abuts the end of contact spring 28 without exerting pressure on it. The pin 31 abuts spring 28 on'the other side,

and contact spring v29 normally holds sleeve 36 of insulating material in its' outermost position.

Contact springs28 and 29 are adjusted so that they are normally open, making it necessary for sleeve 36 to be forced to the right against the pressure of spring 29 before closure of contacts 23 and 29 can occur. The reasonigr this arrangement will also be more fully described in connection with the register. The transmitting station or box is similar to the preliminary box in all respects rexcept that the preliminary stations are not provided with contacts.

The register I3, shown in Figs. 7 to l1, includes an outer 'cylindrical casing 45 which has a lug 20 integral therewith yand a hole 46 which exposes a station indicator ring 4'I for the purpose of revealing the number of the previously operated station. It should be noted here that in contrast to prior registers the outer casing of this register does not present any indication of the manner in which the register operates, thus preventing the watchman from obtaining anyrclue as to the operating procedure which takes place within the register as he progresses from station to station. The other end of the cylinder is closed by an inner cylinder 48 which is pinned permanently to the casing 45 by the pins 59 so that it cannot be removed to expose the inner parts of the register. Furthermore, it is different from the usual cylinder lock in that the keyslot cannot change position when a key is inserted. These features of construction prevent the watchman from obtaining any hints as to how he might alter the register for the purpose of avoiding operation at the tour stations in order to transmit his report signal. l t

Y The lock portion of the register consists of the inner cylinder 48 which is `provided with a key slot 49 and a set of pins for operating a plurality of sets of pins 5I in an intermediate cylinder 52 which lock the intermediate cylinder to the inner cylinder. A set of locking pins 5I is provided for each tour station, in this case ten stations, the sets being disposed in cylinder 52 as shown in Figs. 9 and l0. The lock portion of the register is arranged to require a'different key for operating each set of pins Thus, in the example shown, four pins are eiective to lock the cylinder, but in the other stations, for example, a diierent combination of three or four pins may be effective to lock the cylinders. Thus, any desired combination of pins 5l may be utilized, with the result that each station has a diierent key and the watchman must visit the stations in predetermined sequence without omitting any station or stations. 'Ihe pins 5i are designed to be loose fitting, while another pin 53 extending between cylinders 48 and 52 is designed to be close-tting so that, if an attempt is made to pick the lock, it will not be possible to jam each of the pins 5I in position to unlock the cylinders. The inner cylinder 58 encloses a winding spring 5l for operating a driving member 55, which spring is Wound by the winding member 63, this member being provided with ball bearings 64 which ride in helical slots 55, causing the spring winding member to rotate and wind the spring 6i as it is moved to the left. As `an added precaution to prevent insertion of a pin of some sort to force a winding operation of the winding member, the pin 68 is provided so that the winding member 53 cannot move with respect to the inner cylinder 48 unless unlocked by the rotatable portion 32 of key I4.

The inner cylinder encloses the driving member 55 which rides on bearings 58 and carries a number of round rod-like pawls 55 on the ends of shoulders t5 secured to spring pressed pins 51. Due to the springs, the pawls are maintained in Contact with ratchet teeth 59 (shown in dotted lines in Fig. 4) on the intermediate cross-axial face of cylinder 52. Such engagement prevents rotation of driving member 55 prior to movement of pins 53 te positions unlocking cylinder 52 for rotation relative to cylinder 55. Unlocking o f pins 53 is accomplished by winding member 63 engaging and forcing pins 53' outwardly to the proper extent. Thus rotation of driving member 55 is prevented until the spring 5l has been wound by member 53 which not only winds spring 6l but also at the proper time clears pin 53 to unlock driving member 55, with the result that cylinder 52 is rotated under the impetus of spring 6l.

As shown in Figs. 4 and '7, the ratchet 58 has ten teeth, one for each preliminary station, wherey the intermediate cylinder can be stepped through ten positions. If each position differs from adjacent positions either in number or disposition of pins 5l, the intermediate cylinder will advance one station at a time, or through an arc of 36, arrest of the intermediate cylinder at the end of the arc being accomplished by one or more of the pins 5l at the new position dropping into a pinhole or pinholes in the inner cylinder, in which hole or holes the pin or pins had not been elevated by the key. In the event the system is to be used with less than ten stations, for example, with nine stations, then a pair of adjacent positions will have similar pin numbers and dispositions to, in effect, eliminate one of the no1"- mal ten positions. If used with eight stations, then two pairsof adjacent positions will be so arranged. This elimination of stations, or compensation for a reduced number of stations, can be extended within limits. In any event, the greatest arc of movement of the intermediate cylinder under correct operating conditions is 72, and any appreciable movement in excess of two positions is prevented by the provision of a stop 82 extending from the end of cylinder 43 into the path of movement of one of the shoulders 8i). This stop is disposed at approximately 74 from a vertical line through the device, thereby preventing such excess movement as might possibly disrupt the operating mechanism.

The driving member 55 has a shaft 'i keyed thereto by key S5 and secured to winding member 53 by ange "i2, there being a slot 13 in the end thereof for engaging the lug Sii on the transmitter shaft 3i to operate the transmitting station when the proper tour has been completed. Winding member 53 is provided with lug 84 for engaging with key 85 on shaft 75 for the purpose oi causing rotation of shaft iii and driving member 55 from the operated position back to ncrznal position, as will be explained later on.

The pin i5 is provided in the inner cylinder :i5 and abuts winding member 53 in slot 55 for the purpose oi preventing tampering with'the register er the key and transmission of a false report signal. The pin 15 has another pin 'i5 perpendicular thereto which extends into a slot 'ii formed by the space between the outer end of collar 'it on the intermediate cylinder 52 and the inner face of the end of cylinder 8, as shown in Figs. 7 and i0. Collar '.'8 while being of generally circular shape does not constitute a complete ring, there being a gap between the ends of the collar extending over an arc slightly in excess of 36, as shown in Fig. 10. Gap Tl" is in communication with slot T! and so situated that at stations Iii and l the pin l5 can move to the left into gap il', thereby allowing the pin l5 to also move to the left as winding member 53 rotates. Thus, when the register is inserted in the drawer of the transmitting station, it aiiows the Contact operating member 3l to remain stationary, While the sleeve 35 is displaced and closes contacts 28 and 29, as shown in Fig. 5. If, however, the watchman plugs the aperture in the drawer cr inserts any sort of instrument through the aperture in the drawer to operate the contacts 2B and 25, he will push both members 35 and 3?, thereby displacing both contacts simultaneously in open relation to one another and preventing transmission of a report signal. Dummy pins 'i5 are permanently secured within the cyiinder 55 by set screws, shown in Fig. 7 of the drawings, for the purpose of confusing the watchman. None of the pins including guard pin 'l5 can be moved when the watchman has the register, and therefore he cannot ascertain +heir function.

The ring 571, having station numbers thereon, is supported by fiat springs 54 for the purpose of ailowing movement of the ring in case the watchman attempts to change the station indication. Thus, he can insert a pencil or the like through apertiue i5 and displace the ring fil, but upon withdrawal of his pencil the ring returns to the proper position, and in the meantime intermediate cylinder 52 is not moved or otherwise affected, as no appreciable force can be exerted thereon.

its the watchman progresses through his tour, he inserts the register in the drawer of each station, thus enga ing -ie key with the register. He cannot perform any operation except the insertion of the register in the drawer and the return or the drawer to its normal position and, therefore, cannot force the operation of the register in any manner except the proper one. Furthermore, the register is completely concealed, and he cannot obtain any hint as to the operation taking place.

be noted'herefthat ther conventionalkey blank cannot be utilized to operate the register because, even though a key blank could be found which would fit the slot 49, and even though it could be led to operate Athe pins 5|, it wouldl not operate the winding member 63, as itwould not have a rotating end portion.V Further movement of the key causesrotation of the winding member 63 under the influence of the balls 64 and helical slots B5. TheV spring 6I is wound until the winding member B3 vis forced toward theintermedi'ate cylinder operating member 55. The locking pin 53 is released by winding member 53 Whilethe pawls 55 engage the ratchet 59. It should be noted that the closely fitting pin 53 securely locks the inner cylinder 48 to the intermediate cylinder 52.A Thus, even though a watchmansucceeded in moving each of the pins 5|, he could not jam these pins in their unlocking position, since they are loose fitting and pin 53 is tight fitting.

The cylinder 52 cannot rotate until all of the pins 5| and 53 are in position to unlock the two cylinders, and the driving member 55 cannot start its rotation until the pins are in the unlocking position. Therefore, the pins 5| and 53y are so positioned with respect to one another and the key for the winding member 63 that the key unlocks pins 5|, the winding member 63 engages and moves pins 53, and consequently pins 53, so that the ratchet, engaged by the pawls 56, can rotate under the drive imparted by wound spring l at the instant that the two cylinders 48 and 52 become unlocked with respect to each other." Spring 6| in this manner rotates the intermediate cylinder 52 until anew set of pins 5| and 53 become aligned With the key slot on the inner cylinder 48. This new set of pins is made up of a dift'erentcombination and corresponds to the next preliminary station. Thus, the register is prepared for operation by the next preliminary station and no other, as its key is the only one which Will unlock the new combination of pins.

When the register is relocked and the drawer I64 is withdrawn Yby the watchman, the spring winding member 53 returns to its normal position under the inuence ofr spring 6|. As the winding member 63 returns to its normal position, the lug 84 on member 63, shown in Figs. '1 and l1, engages with the keyed portion 85 of shaft 1U to in turn rotate the driving member 55 back to its normal position in preparation for operation by the next tour station, the pawls riding over the sloping surfaces of the next teeth to finally be seated behind the shoulders of those next teeth.

The watchman progresses along the tour, resetting the register in eachtour box by changing the setting of the intermediate cylinder, as described above. If he fails to visit one or more boxes or to operate the register at the boxes in the predetermined sequence, the key at the next box will not unlock the intermediate cylinder, and consequently the ring 41 always indicates the number of the last station to operate the register. Y

When the watchman inserts his register in transmitting stations l0 or the winding member 63 and cylinder driving member 55 are operated in the same fashion as in a preliminary box except that the keyed shaft 1U rotates the key shaft 3| through the connection established when lug 34, shown in Fig. 12, engages the slot 1| in shaft 1B. Thus, when the register is reset, 'the Contact operating member. 35 closes the contacts 22 to transmit a vreport signal. The contacts 22, 28 and 29 are shown as normally open, but they maybe normally closed and adapted to be opened by the members 35 and 31. As an added precaution to prevent false operation of the register, the guard pin 15, shown in Figs. 5 and '1, must be in condition to move to the left in order to prevent the contact springs 28 and 29 from remaining open under the influence of the pin 31 and the cylindrical contact operating member 36. If the intermediate cylinder has Vbeen operated at the proper preliminary boxes,

the slot 11 in collar 18 will be in the proper posi-'- tion toallow the pin 15 to move to the left, but the pin 15 extends backwardv sufciently to engage the winding member 63, and thus the windingV membermust be forced to the left by the key 3E! in the transmitting station before the pin 15 can move to the left. Thus, the watchman does not see a change in the appearance of the register, and furthermore he cannot discover that the pin has any function or what its function may be. He is also prevented from defeating the purpose of the pin itself as it is held in normal position by the winding member 63.

' From the description set forth herein, it is evident that the register is so designed that its appearance does not change as a consequence of the operations which are performed on it during the tour. The lock cannot be operated by a conventional key, and it cannot be picked in view of the dimensions assigned to the pins 51 and 53. `In addition, the watchman loses -control of the register as he closesythe drawerv of the station box, and therefore heis prevented` from forcing theregister to accomplish any false operation thereof. In other words, the register is substantially self-operating. 4 The station boxes are so designed that, when the drawer is pulled to an open position, the

VISIS cover remains closed and cannot be opened until substantially the open position is reached, and therefore the interior of the box including the keyand the guard pins always remain concealed. Therefore, it is impossible for the watchman to obtain any hints as to the appearance of the key itself or of the remainder of the interior of the box. The drawer protects the register from any application of force while it is being operated by the key and also conceals the register to prevent the watchman from ascertaining the function of the pins 15 as well as the operations which occur Within the register. The piovision of a guard pin together with dummy guard pins prevents the watchman from learning the function of the guard pin, and the pins themselves provide an added safeguard against tampering with the register or with'the station box equipment.

. In other words, the watchman 'is required to visit every station on his tour, as failure to do so would cause a delinquency signal in the central station, and any tampering with the register or tour boxes cannot prevent a delinquency signal.

It is not intended that the invention shall be limited to any particular form of transmitter, as it 'will be plainly evident to any person having ordinary skill in the art that other transmitters may be used, such as those adapted to transmit a co'de signal comprising a series of digits. Furthermore, it is not intended that this system shall be limited to any specic number of transmitting tour stations or preliminary tour stations, as the requirements of individual installations will determine the number of the various types of stations to be included within a specific system. It is further obvious that this invention can be adapted to any number of sets of locking pins and the required number of keys for operating them.

While the system has been described as having tours with transmitting stations at the ends of the tours and with preliminary stations therebetween, it will be evident to those skilled `in the art that transmitting stations can be 'interspersed in the tour as may be desired and as conditions may require.

Various modifications of this invention and improvements thereof will occur to those skilled in the art, and therefore we desire that this invention shall not be limited except as required by the prior art and the scope of the appended claims.

We claim:

l. A watchmans tour station comprising a casing, a drawer therein adapted to be withdrawn from the casing for the purpose of receiving a watchmans register, means for limiting withdrawal f said drawer, the drawer including a cover having a lifting lug thereon for lifting said cover when the lug engages the front of the casing, an apertured wall for said drawer, a key mounted at the rear of the casing in fixed relation thereto and so aligned with the drawer aperture that it enters the register to operate the same when the drawer is pushed to its closed position.

2. n combination, a register and a watchman's tour station comprising a casing, means for introducing a register into said casing, a register operating means supported within said casing and means for rendering the operating means inaccessible pricr to the introduction of a register into the casing and during the time a register is in the casing. i

3. In combination, a register, a watchmans tour stationfor operating the register comprising a casing, a key supported at the rear of the casing in fixed relation thereto, a drawer fon re-- ceiving the register and adapted to extend through the front of said casing, an aperture in the rear of said drawer and aligned with the key whereby the key extends into thev drawer when the same is closed, said drawer having a cover thereon adapted to prevent observation of the interior of the station, said casing normally maintaining the cover in closedA position, a lug at the rear of said drawer positioned to open the cover after it has been withdrawn from the casing to substantially the full open position whereby the key is concealed after the cover opens and the register is concealed when the' casing forces the cover to Iclosed position after the drawer is partially closed.

Li. In combination, a register and a watchmans tour station comprising a casing, a register operating means supported within said casing and means for conveying the register into" operating position with respect to the register operating means and for concealing the said register operating means and register during allV jo'perating functions.

Vtour station comprising a casing,l a key supported at the rear of the casing in rfixed relation thereto, a drawer for receiving theregister andv con- 5. In combination, a register, a `watchmans 'veying it to an operative positionwith respect to the key, a cover `on the drawer adapted to conceal the register Yand prevent access to the interior of the casing, said casing normally hold- Ving the cover in closed position, and means lfor opening the cover after the drawer has been withdrawn" to substantially the full open position whereby the key is concealed when the drawer is open and the register vis concealed-after the drawer is partially closed. y

6. A watchmans tour station comprising a casing, a drawer therein adapted to be'withdrawn from the casing for the purpose of receiving a watchmans register, an aperture at the rear of the drawer, a coverjon said drawer, means for opening said cover only when the drawer is substantially at'the opened position, a key mounted 7. In combination, a watchmans tour station comprising a Asignal transmitting means, a register operating keyVa-nd means for operating the signal transmitting means and a register coma prising a lock adapted to be V,operated by the key and means for resetting'the lock and operating the second means to drive the transmitting means when the key has unlocked the register and the resetting operation occurs.

8. In combination, a watchmans tour station comprising a pair of transmitting contacts, a register operating key comprising a Ixed station, a rotatable lsection and a shaft rotatable `within both sectionsA for voperating the contacts, and a register comprising a lock adapted to be operated by the iixed section of the key, an operating device within the lock for 'unlocking the same and having a keyedmember for engaging thel key comprising a fixed vsection for unlocking the register, a rotatable section and a shaft rotatable within both sections for operating the contacts when engaged by the register.

10. In a watchmans register, an outer cylinder and an inner cylinder locked thereto and adapted to receive a key, an intermediate cylinder having loose fitting pins therein responsive to the key for locking the inner cylinder andthe intermediate cylinder'together in several different positions and an operating'device for rotating the intermediate cylinder with respect -to the inner cylinder ucomprising an operating member for rotating the intermediate cylinder, 'av close fitting pin for locking the intermediat`e-`cylinder to the inner cylinderand means Yrespor'i'sive when the key becomes-fully inserted for engaging the close fitting pin to unlock the cylinders and rotate the operating vmember -wherebytheinner cylinder `and the intermediateY `cylinderA do not become unlocked until .the proper key is yfully inserted and the intermediate cylinder cannot Ating to another, a keyiorV 4be rotated tobindthe key operated pinsfand unlock the cylinders. i Y 1 11. Ina watchmans register, a lock adapted to be successively operatedfrom one lockedset.-

the lock, an operatingdevice energized bythe key for moving the lock tothe next settingand means operated by the operating device forcon'- ditioning the lock for resetting whereby picking of the iirst key operated part of thelock does i not permit resetting. 1

@12.,In a watchmans tour system, a rtour station comprising a casing, a drawerwithin the casing for receiving a watchmans register, a key supported in' proper relation with the registerto enter and operate the same when the drawer is pushed to its closed'position, alpair of contacts be closedby ,thekey when the same 'adapted to' by theregister for transmitting a is operated .signal,a-. second pair ofg contacts connected in i* series with the first mentioned contacts for-completing the transmission circuit and an operatving. member iorthe second pair of contacts controlled by the register only to prevent transmission Aof asignal by tampering with the key.

13. In a watchmans tour system, a tour station comprising a casing, adrawer within the V casing for receiving a watchmans registen a kysupported in proper relation with the regT ister to operate the same when the drawer is pushed to its closed position, a pair of contacts adapted to be closed by the key when the same is operated by' theregister Vfor trans- Initting a signal, a second pair o f contacts connected in series-with thev rst mentioned contacts for completing theftransmission circuit ,and an operating member for the second pair of corr, tacts comprising Ya pin for engagi'nghone contact, and aA 'cx'flindricalv operating member surrounding said pinV for operating the other contact whereby either lthe cylindrical member lmay operate its contacter both the cylindrical memberl and the 'pin may move 'bothrcontacts when the register is conveyed to operative positions-by the drawer. 14;' In combination, a watchmans register com pris'ing 'a' cylinder having alpin therein extendifg tothe `'outside thereof', means (for, locking saidpin andfa watchmains station comprising a key for operating ythereg'fister and unlocking the pin after a `predetermiried nuirber for register operations to allow the pin to recede within the cylinder, ra pair 'of transmitting contacts adapted to be operated by said keyfa second pair of con-I tacts connectedinseriesLwith the iirSt'pair of contacts' for completing thetransmission circuit',y meansengaging with the registerl for Operating one of said secondpair of 'contacts when the register is operated andmeans aligned with the pin' in Said register for operatingithe other of said second pair of contacts, when the pin is locked whereby each of the second pairof contacts is moved simultaneously and remain open when the pin within theregister is locked and the` .contacts `.are closed ,when the pin is unlocked.; ,l

- .15..In "combinatiomj a; Watchmans register comprising a'lock, having a plurality of pills therein :extending-.to the outside thereof, means forlocking .said pins in Suche. position that theyare Vhushwith the end of the ycylinder and a watchmans station comprising a key for operating the lock and unlocking one of the pinsvv after a'predetermined number of register operations to allow the pin ,Lto

11e-1er` e-.Pef Oi' @recargables @cette adapted:

unlocking one part V.0.2i

recede'within the cylto bev operated 'by'said keya' second pair of con: tacts connectedI in series with'the first pair of contacts for completing theV transmission circuit, means ,controlled by the unlocked pin in said register and engaging the second pair of contacts whereby the second pair of contacts Aare held in open position ifA the pin within the register is locked and in closed position if Vthe pin is unlocked.

16. In Icombination, a watchmans station comprising a pair of transmitting contacts for sending a supervisory signal, means for operating the transmitter contacts, a pair of auxiliary contacts in series with the transmitting contacts and a key associatedv with the contact operatlng means, Ya register adapted to be unlocked by the key and to operate the contact operating means when' unlocked and auxiliary locked means in the register adapted to be unlocked by the key to operate the auxiliary contacts whereby tampering with the key does not cause transmission of supervisory signals.

l 17. In combination, a watchmans station comprising means for transmitting supervisory signals, a releasable guard device for preventing transmission of signals and a key associated with the transmitting means, a register adapted to be unlocked by the key and to operate the transmitting means when unlocked and auxiliary means in the register adapted to be unlocked by the key and cooperating 4with the guard device to prevent transmission of supervisory signals unless the register is properly preconditioned to release said guard device.

i 18. In a watchmans tour register, an outer cylinder and an inner cylinder locked thereto by a series of locking pins, an intermediate cylinder locked to said inner cylinder by a second series of pins, a key for unlocking the inner and intermediate cylinder, an operating device operated by the keyv for rotating the intermediate cylinder with respect to the inner cylinder through a series of locking positions, a series of locked pins extending through one end of the inner cylinder, only one of which has actual utility to -control a pair of contacts, this pin having an operable locking member thereon abutting the operating device whereby the operable pin is imperceptible to the watchman, a collar on said intermediate cylinder having a slot therein which becomes aligned with the 'locking member after the intermediate cylinder has been unlocked and rotated a predetermined number of times whereby the locking member allows the operating pin to recede within the inner cylinder after the register has been operated through a predetermined sequence at ajseries of tour stations.

A 19. In a` -watchmans tour register, an outer casing and an inner cylinder" lockedl thereto, an intermediate cylinder lockedr to said inner cylinder, a key for unlocking the cylinders, an operating device operated by the key for rotating the intermediate cylinder. with respect to the inner cylinder through a series of locking positions, a guard pin extending through one end of the inner cylinder and means for retaining the guard pin in a lo-cked position until after the intermediate cylinder has been unlocked a predetermined number of times whereby the guard pin -is unlocked when the register has been op- "erated through apredetermined sequence.

2.0. In a watchmans register, a casing, a lock device within the casing adapted to be rotated through a predetermined series of separate positions, a partially exposed ring flexibly attached to the lock device by a series of hat springs for indicating its position, the springs allowing the ring to be rotated a slight amount if tampered with, but being adapted to return it to its normal position when the tampering ceases and preventing direct application of force to the lock.

2l. In a watchmans register, a casing, a lock device within the casing adapted to 'be locked and unlocked a predetermined number of times, an indicator attached to the lock device by a resilient means for indicating the number of locking operations, the resilient means allowing the indicator to be m-oved a slight amount if tampered with, but being adapted to return it to its normal position when the tampering ceases and preventing direct application of force to the lock.

22. In a watchmans register, an outer cylinder and an inner cylinder locked thereto and adapted to receive a key, an intermediate cylinder having pins therein for locking it to said inner cylinder in several diierent positions and an operating device for rotating the intermediate cylinder with respect to the inner cylinder when a key is inserted in the register and unlocks the cylinders comprising an operating member having a set of pawls slideably mounted therein, a spring for rotating the operating member, a winding member mounted in spiral grooves on the cylinder and adapted to be forced through a Winding motion by the unlocking key until the paWls are engaged and a ratchet on the intermediate cylinder engaged when the pawls slide under the influence of the winding member whereby insertion of the key winds the spring and the winding member engages the pawls with the ratchet to cause the spring to drive the intermediate cylinder to another locked position.

23. In a watchmans register, an outer casing and an inner cylinder locked thereto and adapted to receive a key, an intermediate cylinder having pins therein for locking it to said inner cylinder in several different positions and an operating device for rotating the intermediate cylinder with respect to the inner cylinder when a key is inserted in the register comprising an operating member and means driven by the key for storing energy, engaging the operating member with the intermediate cylinder and rotating the intermediate cylinder to a new locking position whereby only force stored by the storing means can be applied to the register when it is operated.

24. In a watchmans register, an outer casing and an inner cylinder locked thereto and adapted to receive a key, an intermediate cylinder having pins therein for locking it in several positions in a predetermined sequence to the inner cylir i der, a series of keys for unlocking the intermediate cylinder in a predetermined sequence and means for storing a predetermined amount of energy exerted when the proper keys are inserted and for driving the intermediate cylinder to successive locking positions whereby any amount of force applied tothe exterior of the register cannot cause the intermediate cylinder to skip one or more positions.

25. In a watchmans register, an outer casing and a lock therein, a series of keys for unlocking said lock in a predetermined sequence and means for storing a predetermined amount of energy exerted when the proper keys are inserted to alter the lock and to prepare it for operation by the successive keys whereby any amount of force applied to the exterior` of the register cannot alter the sequence of unlocking operations.

26. In a watchmans register, an outer casing, a lock therein for preventing improper operation of the register and means within said casing responsive to the key for operating the lock from one position to another position, said means hav ing uniform energy expending characteristics independent of the energy of key motion, whereby application of force to the exterior of the register cannot operate the lock.

27. In a watchmans register, an outer casing and a lock therein, a key for unlocking said lock and means for storing a predetermined amount of the energy exerted when the proper key is inserted in said lock and means responsive to the storing means for relooking said lock.

28. In a watchmans register, an outer casing and a lock therein, said casing including a xed key aperture, a key for unlocking said lock and means for storing a predetermined amount of the energy exerted when the key is inserted in the lock and means responsive to the storing means for relooking the lock whereby any amount of rotational or longitudinal force applied to the exterior of the register cannot cause relooking of the lock.

29. A watchmans tour station comprising a casing, a key supported therein, a drawer for receiving a register and conveying it to operatable relation with respect to said key and a cover on said drawer engaged and closed by said casing when the drawer is inserted therein whereby insertion of the drawer automatically` closes said cover. l

30. In a watchmans register, a lock adapted to be successively operated from one locked setting to another, each setting requiring an individual key to unlock the lock, and an operating device within the register energized by each individual key for advancing said lock to the next setting thereof.

PAUL M. FARMER.

DWIGHT W. BLOSER.

WILLIAM J. KLEINKNECHT.

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