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June 7, 1938. L. KENNEDY El‘ AL ‘ 2,119,637 WATCHMAN’S RECORDING SYSTEM Filed Sept. 11, 1935 6~ Sheets-Sheet l s "MW a ‘in I Z . 11 lNVENTO [£51411 1?’(111164.11 lav/91013 .3656!‘ ’ ATTORNEYS June 7, 1938. 1.. KENNEDY ET AL 2,119,637 WATCHMAN’S RECORDING SYSTEM Filed Sept. 11, 1955 1% 3 6 Sheets-Sheet 2 J7- - ‘ 14 I l [ ‘ ,4 7?? ,5 25*\ l ‘as _: Z9 45”‘ _ Cr“ / 39 _ as a \ / 2440 I 26 f 25 “%m':‘ T- I’ / I 1/ ‘i / 52 /' I 1 25 | E / ‘ 13 _:% ~10 - @ t? 45 A 11 INVENTOR$ Zfsleg 112111164? BY H1015 B6’ '61‘ /% AA ‘* ATTORNEYS . June 7, 1938. 1.. KENNEDY ET AL 2,119,637 WATCHMAN’S RECORDING SYSTEM Filed Sept. 11, 1935 6 Sheets-Sheet 5 55 54 INVENTORS 66 [wily ?bmedg Eng/011236567‘ June 7, 1938. L. KENNEDY El‘ AL 2,119,637 WATCHMAN’S RECORDING SYSTEM Filed Sept. 11, 1935 . if’? 14 , 16 ;k_ i 6 Sheets—Sheet 5 44 #45 sv?lois Beyer June 7, 1938. L. KENNEDY Er AL 12,119,631? WATCHMAN’ S RECORDING SYSTEM Filed Sept. 11‘ 1935 6 Sheets-Sheet 6 ‘l 3 151‘152 147 mummm II W/l/l/AIJ: VIII/Ill]. INVENTORS Zesley ?'znnldy 7 [BY/11015 Beyer @I/M ~ ATTORNEYS 2,119,637 Patented June 7, 1938 UNITED STATES PATENT OFFICE 2,119,637 WATCHMAN’S RECORDING SYSTEM Lesley Kennedy, Lake Forest, and Alois Beyer, Chicago, Ill., assignors to Detex Watchclock Corporation, New York, N. Y., a corporation of Delaware Application September 11, 1935, Serial No. 40,082 12 Claims. This invention relates to a system for obtain ing a record of a watchman’s round or rounds of duty, and it has among its objects to provide a watchman’s recording system in connection 5 with which a watchman is provided with a port able recording unit containing a record upon which a complete record of his tour or tours of inspection may be obtained, including records of the various stations visited and records of times 10 visited certain designated stations which have as sociated therewith time controlled keys for mak ing time indications upon the same record which shows the stations visited. Another object is to provide a compact port able recording unit for use in conjunction with different station and time recording keys, which does not contain any time clock mechanism or other mechanism capable of being disturbed or maladjusted by either wrongful intent or negli 20 gent handling. Another object is to provide a record strip and record strip fee-ding mechanism whereby records of time and of stations visited may be recorded in series relation for an inde?nite number of consecutive tours of duty. Another object is to provide, in a recording unit having means for receiving a recording key Fig. 6 is an enlarged partial view of the time controlling mechanism illustrated in Fig. 1. Fig. 7 is a side elevation of the time controlling mechanism illustrated in Fig. 6. Fig. 8 is a detail view taken on line 8—-8 of Fig. 6. Fig. 9 is another detail view taken on line 9-9 of Fig. 6. Fig. 10 is a view of the time cam and lever arm 10 just prior to the dropping of the arm. Fig. 11 is an enlarged perspective view of the stepped crown element which controls the record ing of time. Fig. 12 is a plan of the watchman’s portable 15 recording unit with the cover raised. Fig. 13 is an elevational view on line [3-43 of Fig. 12. Fig. 14 is a View similar to Fig. 12, with the record and other elements removed or broken away for showing understructure. 20 Fig. 15 is a section on line I5-l5 of Fig. 14. Fig. 16 is a section on line [6-46 of Fig. 14, which is on the transverse line of printing. Fig. 1'? is an enlarged view of recording mecha nism on the transverse line of printing. 25 Fig. 18 is an enlarged elevational view taken on and a record receiving paper to be impressed or the transverse‘ line of printing. Fig. 19 illustrates principal parts of a station imprinted upon by the recording key, a locking device for preventing the insertion of the record ing key at all times except when the cover of the recording unit is completely closed, whereby untimely tampering with the recording mecha present invention the watchman is provided with a portable recording unit containing a record strip which is automatically advanced each time nism or record is impossible and no record can be made except when the cover is closed. Another object of the invention is to provide a novel time recording key and time controlled mechanism for operating the same. Other objects involving novel constructions and combinations of parts will appear in the speci?cation and claims thereof setting forth What is now considered to be the best mode of applying the invention. This may be fully un _ derstood from the detailed description and draw ‘) ings in which: Fig. 1 is a front elevation of the time recording key and associated clock mechanism. Fig. 2 is a side elevation of the recording key 0 and clock mechanism illustrated in Fig. 1. Fig. 3 is an enlarged front elevation of the time recording key illustrated in Fig. 1 with parts broken away for illustrative purposes. Fig. 4 is a section on line 4—4 of Fig. 3. 65 (Cl. 234-39) Fig. 5 Ba section on line 5--5 of Fig. 4. recording key. In the watchman’s recording system of the K a record is made thereon at designated stations which the watchman must visit during his rounds " of inspection. Station keys are provided at these designated stations, each key having a station character thereon identifying the station visited. The order of visits at the respective stations is indicated upon the record strip by the staggered 40 series of entries thereon. The staggering of the station records is automatically taken care of by mechanism within the recording unit which causes longitudinal advance of the record strip each time a station recording key is used for 45 making a record and by the lateral displacement effected because of the different positions of the printing dies on di?erent station keys. The sys tern contemplates the use of clock mechanism for obtaining a time record upon the record strip contained in the watchman’s portable recording unit. There may be one or more time control ling units placed at desired stations along the route a watchman is to inspect. The time unit may be placed either at the beginning or end of 55 2 2,119,637 a tour of inspection or at or between any selected stations, and the watchman is required to make a time record in the recording unit which he car ries by inserting therein a time recording key which is under the control of the time unit. This at one end of the bearing socket in support 22. A collar 35 is secured to casing 32 and serves as an abutment for the other end of spring 34 and as an abutment for the shoulder 35 of stepped crown member :3, so that when the key time recording key is shaped differently from the is applied to the portable recording unit spring station recording key and a socket or guide means suitable for receiving the same is provided in the portable recording unit. The use of timing 34 will absorb whatever shock may be transmit ted to the stepped crown member. Sleeve is provided with a pair of pins 42, which engage mechanism independent of the portable record ing unit makes it possible to vary the location of the timing unit in reference to the regular re cording stations which a watchman is required to visit, and also makes it possible to vary the in complementary slots 43, 43, in socket or guide 10 member 44 (Fig. 16) of the watchman’s portable recording unit for the purpose of alining slot 45 (Figs. 3 and 4) in sleeve 32 of the time recording key with the operating element 45 (Fig. 16) of periods or" time during which the time recording key will control the recording of a given time so the time recording means. This causes the time recording mechanism to be set up in accord that changes may be made unknown to the watchman and beyond his control. ance with the particular step of the stepped In the drawings, and particularly in Figs. 1, 2, 20 3, 4 and 11, we have illustrated a time recording key Ill contained in a box or housing H which has a removable cover 12, whereby the recording key is accessible to the watchman for recording purposes. The time controlled element i3 is ro tated by a shaft I4 under the control of clock mechanism i5 contained in a casing IS. The housing I I and easing l6 are connected by a tube H and the clock mechanism is completely en closed so that unauthorized access to all mecha 30 nism contained therein, save only the business crown which is opposite slot 45 in a manner to be described hereafter. The function of the stepped crown i3 is to set 20 recording indicia in the watchman’s portable re cording unit. The recording of an indication corresponding to the step of the stepped crown i3 is brought about by the use 01’ stem 25 which engages an actuating lever I24 (Fig. 16) con tained in the watchman’s portable unit and which will hereinafter be described. The recording key is so constructed that any shock resulting from contact of the end of the stem 20 with the actuating lever is taken up by a 30 end of the recording key, is impossible of attain ment. The casing of the clock mechanism is preferably covered with a door i8 by which all parts of the clock mechanism may be kept un between a shoulder 39 of the support 22 and a collar 40 upon stem 20. The stem. is otherwise seen as well as inaccessible. It will be observed that the construction oi the ' Suitable locks are provided for all compartments with their keys available at a supervisor’s oiilce. The time recording element l3 of the time re~ cording key is a stepped crown provided in the present instance with twelve steps, each corre sponding to one hour of time, so that for every twelve hours, the stepped crown will make one complete revolution. The rate of rotation or the number of steps upon the stepped crown may be varied for obtaining records of time indications for shorter or longer periods of time. For ex ample, if one-half hour periods were used the number of steps would be doubled for the same rate of rotation of the crown. The stepped member I3 is mounted for rota tion upon a stem 20, journalled at 2| in the key support 22. Key support 22 provides a bearing 23 for a sleeve member 24 to which the stepped crown member is is keyed at 25. The member 24 carries a pinion 26 engaging another pinion 21 carried by a shaft 28 mounted in bearings contained in the upper portion of the recording key housing II. The recording key support 22 is pivotally mounted at 29 in line with the line of contact between pinions 26 and 2'! so that the recording key may be swung from within its housing to the position illustrated in Fig. 4 for enabling the watchman to engage the same with the portable recording unit which he carries spring 38 (Figs. 3 and 4) normally compressed free to move longitudinally of the recording key. time recording key is such as to discourage and even prevent tampering therewith. To this end the mounting of the key is protected by a guard member 48 and a shield 49 so that pinions 26, 2?, and associated shafts 28 and M, are out of reach. 40 Having reference to Figs. 1, 2, 6, 7, 8, 9 and 1.0, the upper end of shaft I4 is connected to a short shaft 52 supported by a bracket 53. This shalt carries an indicator wheel 54 having indicia cor responding with the various steps upon the 45 stepped crown !3. Shaft 52 is under the control of cam 54 and lever 55. Cam 54 is mounted upon the hour hand arbor of clock mechanism i5 and is so designated that it will raise lever 55 uni formly and permit it to drop once for each revo 50 lution of the cam. Lever 55 is mounted upon a bearing pin 56 and its lower end has a ?nger 5'! engaging a rocking member 58. This latter mem ber is mounted for oscillation about shaft 52 and it carries a pawl 59 which engages ratchet 55 wheel 55 to advance shaft 52 each time lever 55 is permitted to fall by the passage of the high part GI of the cam from under the lever. Clock wise rotation of cam 54 causes the upper end of the lever 55 to be raised and the lower end of the 60 lever 5'! to move from its right-hand position (Figs. 6 and 8) to its left-hand position (Fig. 9). and when the uper end of the lever is permitted to fall, spring 62 draws the lower end 5'! of the lever and moves member 58 from its left-hand without disengaging the driving connection. A spring 30 is provided for swinging the recording key outward from its housing when the cover is position (Fig. 9) to its right-hand position (Figs. 6 and 8), thereby causing pawl. 59 to rotate removed, and replacement of cover I2 causes the ratchet wheel 60. recording key to be restored to its housing,_as 70 illustrated in Fig. 2. The stepped crown is enclosed within an outer casing 32, with which it is permitted to slide lon gitudinally of the key support 22 by means of pin and slot connections 33. A spring 34 which continually urges the casing outwardly is seated Ratchet wheel 60 is pinned to shaft 52 and its rotation causes rotation of shaft l4 and of stepped crown i3, as previously described. Pawl 56 is a spring-pressed pawl having a spring 61 which urges the pawl against the teeth of ratchet wheel 65 and thereby serves as a safety stop against the reverse rotation of shaft 52. 2,119,637 Also ?xed to shaft 52 and forming part of ratchet wheel 60 is another ratchet wheel 64 (Figs. 7 and 8) which is engaged by a locking pawl 65. Pawl 65 carries a pin 68 in. engage ment with a slot 69 in rocker plate 58. The re lationship of the slot and pin is such that the pawl is maintained out of locking position except at the moment when the shaft has completed its forward rotation under the advancing action of rocker plate 58 and pawl 59, at which moment pawl 65 is brought into engagement with ratchet wheel 64 to lock the ratchet wheel and shaft against overrunning. A quick acting device is provided for prompt 15 and precise restoration of all time controlled parts to their initial positions. This device is provided at the upper end of lever 55 and includes a roller 'II and a triangular support therefor ‘I2. The support is pivoted upon lever 55 at ‘I3, and it 20 has a ?anged edge ‘I4 for limiting its movement about the pin. When cam 54 is acting upon lever 55 through roller ‘H support ‘I2 assumes the position illustrated in Fig. 10 with ?ange ‘I4 limit ing its anti-clockwise movement. When roller 'II reaches the crest of the high point 6| of the cam it will quickly kick out and rotate support member ‘I2 clockwise thereby permitting lever 55 to fall to the low part of cam 54. under the action of spring 62, as illustrated in Fig. 6. This ac tion rotates the stepped crown I3 of the time re cording key to starting position. The portable recording unit is illustrated in Figs. 12 to 18. inclusive. This unit includes a casing or container 80 which completely encloses 35 its contents and prevents access thereto except by the proper recording keys which are used to produce. the desired records. The casing is pro vided with a cover 8| having a lock so as to pre vent access to the contents except by an author ized person. As has been already explained. a key or socket member 44 is provided in the lower part of the casing for receiving the time recording key. In the present instance, the bore of the socket is round to accommodate the particular key which has been described, but the form is not of the essence. it being merely preferable that the socket be different from that provided for the station recording keys, so the watchman may not be. confused or have any excuse for not having 50 made a proper record at any particular station. Immediately above socket 44 there is another socket or guide means 83 for receiving a station key 84 which will be described hereinafter. The cross-sectional form of the station key is rec tangular and the guide means 85 within the cas ing is likewise rectangular for accommodating the key (Fig. 16). The portable recording unit is provided with a record sheet and means for advancing the same step by step. The record sheet preferably is in 3 against the drum. The paper is permitted to coil upon and store itself in the space below the ad vancing drum. The paper is advanced each time a station recording key is used to impress a record upon the record strip. The mechanism for advancing the record includes a lever 95 having one end dis posed within the station recording guide means 85 so that when the key is introduced in the guide means it will cause rocking of lever 95 about its 10 pivot 96 (Fig. 14). Lever 95 engages an arm. 91 pivoted at 98, which is in continual engagement with the lower end 99 of lever I00, which is mounted upon pin IOI. When the recording key is inserted in guide means 85 it will contact with lever 95 and cause lever I00 to rock counterclock wise (Fig. 15) and carry with it link I02, which has a pin and a slot connection I03 with an arm I04. Arm I04 is mounted to oscillate about the bearing pin of drum 81, and after it has been dis placed counterclockwise by the action just de scribed, it will be restored to its position of rest by the action of spring I05. Arm I04 carries a spring-pressed pawl I06 which engages the teeth on wheel I01 for actuating the drum to which it 25 is attached. The action of the spring causes clockwise rotation of arm I04 and paper feed when lever 95 is permitted to return to its normal position upon the withdrawal of the station re cording key from its guide means 85. By arranging the record advancing means to advance the record each time a station key is used, each character printed by a station key will be displaced longitudinally of the record for an interval corresponding to the length of advance 35 of the record, and, as illustrated in Fig. 17, when di?erent station indicia are used, as for example I, 2, 3 and 4, they will appear in staggered and serial relation to each other. The staggered re lation will be an uninterrupted straight diagonal 40 line, but if the stations are visited in improper order, the station visited out of turn will be re corded off of the straight diagonal, with the re sult that any irregularity in the watchman’s in spection as to both station and sequence of visits 45 will be immediately apparent. It is desirable to cause advance of the record strip when the cover is raised or lowered. For accomplishing this, a member I09 is secured to the cover (Fig. 15). This member I09 depends 50 into the casing and has two edges H0 and III by which the record strip advancing drum may be actuated upon the closing and opening move ments of the cover. When the cover is closed, edge IIO engages projection IIZ on lever I00 55 (Figs. 14 and 15), and when the cover is raised, edge I I I engages the same projection and likewise causes rocking of lever I00. Thus, from either opening or closing of the cover, arm I04 is rocked anti-clockwise (Fig. 15) and then released for the nature of a paper strip wound into a supply an advancing movement of drum 8? and accom roll 86 (Fig. 14). The supply roll is mounted at one end of the casing and an advancing drum 81 is mounted at the other end of the casing. The panying feed of the record. 65 supply roll may be mounted in any convenient manner, as on a pin supported by a pair of up rights and held in place by spring-pressed arms, as illustrated in Figs. 14 and 15. The record 88 is threaded through slot 89 and passes through 70 spaces 90, 9| at either side of the station key guide means 85, over plate 92 and onto drum 81. The record is provided with holes 93 along both of its longitudinal edges and these are engaged by teeth 94 on the advancing drum. A keeper 75 I08 (Fig. 12) holds the record strip in place As explained hereinbefore, the time recording key is provided with a stepped crown element which selectively positions time indicia in ac cordance with the time indicated by the position of the stepped crown. In the present embodi ment of the invention there are twelve different time indicia, one for each hour of the day. These indicia consist of pairs of die members H4, H5. 70 The lower die members are carried by a disk I I6 carried by a sleeve splined to shaft II'I. Each upper member of the pairs of die members is in dividually mounted upon a spring arm I I8. The upper members are together held in place over 75 4 2,119,637 their companion lower members between a nut I I9 and a hub of disk H6. The lower end of shaft I ll carries a pinion I25 which is engaged by a rack I2I having at one end thereof projection 45 which is selectively po~ sitioned by the various steps upon the stepped crown I3 of the time recording key. When rack I2I is actuated by the introduction of the time recording key in its guide means M, shaft II‘! ll) is rotated an amount su?icient to position the selected recording indicia opposite the edge of the record strip upon which the time is to be im pressed. As illustrated in Fig. 1'7, the time is impressed just outside of the left~hand row of 15 holes I33 in the record. In the present embodi~ ment of the invention the indicia consist of male and female dies but any other form of marking or printing means may be employed. After the proper pair of indicia has been se lected by the cooperation of the stepped crown I3 and movement of rack I2I, the printing oper~ ation is brought about. This is accomplished by the actuation of lever I 2t when it is contacted by the end of stem 25 of the time recording key. 25 Lever lid is mounted upon pin I25 and it has a yoke connection with the sleeve carrying disk I I6. Its clockwise movement (Fig. 16) causes it to raise disk I I6, spring members I I8 and hook I26. This hook engages and raises a hinged plate IZ'I 30 normally held down by a spring I28. Cam sur face IZQ on hook I25 slides over ledge I30 until hook I26 is released from engagement with plate I21. This provides a sudden release of the re straining action of spring I28 and results in a 35 quick application of force for raising disk I It and indicia [I5 thereon to bring about an imprinting 53, which are carried by a pair of spring mem bers I44, I45. These spring members are nor mally held in an open position by means of a spring I 46 (Fig. 19), cooperating with a pair of spring levers connected to the die carrying springs. Spring members I44, I45, are attached 10 to a pin Ml carried by a casing I48 which is slid able into another casing I49. This latter casing is hinged by a pin I59 to a permanent support at a particular station. As the key is introduced into socket 83 and key guiding means 85 of the portable recording unit, a bar I5I is brought into engagement with lock I52 of the recording key and causes the same to shift longitudinally of casing I48 and the accompanying bringing to gether of spring members I46, I45 carrying the 20 die members under the action of wedge I53. As indicated in Fig. 1'7, each station has a different station character and each stattion character is impressed by dies arranged at different distances from the ends of the recording keys. For an un derstanding of the present invention it will not be necessary to describe in more detail the construc tion of the station recording key. The same is fully disclosed in United States Patent No. 1,183,349, and United States Reissue Patent No. 14,193. The watchman’s portable recording unit is pro vided with means for preventing the making of a station record whenever the cover is raised from operation. After this operation has been com pleted and the time recording ‘key withdrawn from engagement with lever I24, spring I5I will its closed position. This mechanism is illus trated in Figs. 13 and 15 particularly, and it in cludes lever I55 pivoted at I56 and having an arm carrying a projection I51 adapted to be inter posed in the path of the station recording key 8'4. ensure the dropping of the lever, hook I25 and in dicia bearing disk members II6 and IIS to their to the entry end of the station key receiving normal positions (Fig. 16), and spring I32 will return hook I25 into engagement with plate I27. Upon the withdrawal of the time recording key 45 from its guide means MI, rack I2I, together with the indicia bearing members and associated sleeve will be rotated to their normal positions by means of spring I33 and arm I315 (Fig. 14), which has connection with rack I2I. During the time recording operation, the in 50 dicia bearing wheel I I6 is raised and the dies im mediately beneath anvil I35 are brought to— gether to impress a character upon the edge of the record. The upper and lower dies engage the upper and lower surfaces of the paper as spring member I I8 carrying the upper die is carried into contact with the anvil. Anvil I35 is supported upon ?xed pivot I35, upon which it is adapted to be rocked, but when (50 it is engaged by a spring element III! during a time recording operation, its pivotal movement is restricted by the inner surface of guide means 85, so that for all purposes of time recording, anvil I35 is a relatively ?xed member. 65 A station recording key of the type adapted to be used in the present watchman’s system is illus trated generally in Figs. 18 and 19. This station recording key includes a pair of die members I42, Anvil I35 performs the further function of im printing a telltale character upon the record whenever the cover is opened or closed. The up per die of a pair of dies I31 for the telltale char acter I38 is carried by one of the spring elements 70 IIB (Fig. 17), and the character is caused to be impressed upon the record whenever anvil I35 is rocked in a clockwise direction, as illustrated in Fig. 18. This is brought about whenever dou bled-edge cam I39 engages nose I40 as the cover 75 is raised or lowered. The lever I55 is so positioned as to be adjacent i means 85 so that the station key may not be in serted within the casing when the projection is in its obstructing position, as illustrated in Figs. 13 and 14. Arm I58 of lever I55 has a pair of laterally extending ears I52, I63, engaging link I55, which is pivotally connected to the cover 8I so that all movement of link I59 about its pivot effects movement of lever I55. Link I59 has a slot ISI! and all movement of link I59 about its support ing pivot is controlled by a pin I6I fixed in the wall of the casing and engaging the slot. The slot is so designed that for the greater portion of its length it will not displace projection I51 from its obstructing position. For a short length of the slot near the cover of the casing the slot is diagonally disposed to give the link a quick move ment as the cover nears or leaves its closed posi tion. The closed position of the cover with link I 59 in position to maintain projection I51 out side of the station key guide means 85 is il1us~ trated in Fig. 15. Ears I52, I63, in extending laterally from arm I55 and engaging the oppo site edges of link I59 serve to maintain positive and de?nite control of projection I5'I in refer ence to the cover. At no time can any one intro duce a station recording key while the cover is removed from its closed position. What is claimed is: 1. A watchman’s recording unit comprising a casing, a record sheet contained therein, means within said casing for recording indications of time on said record sheet, a time key, a crown member in said key having steps corresponding 5 2,119,637 to different times, guide means in said casing for receiving said time key, means within said casing and controlled by the steps of said stepped crown for selecting indicia on said-recording means for recordation upon said record sheet, and means carried by said time key for effecting the record ing of time impressions upon said record sheet, by the selected time indicia. 2. A watchman’s recording unit comprising a 10 casing, a record sheet contained therein, a cover for gaining access to said record sheet within the casing, means for advancing said record sheet, means for actuating said record sheet ad vancing means each time the cover is opened, 15 and means controlled by a recording key for actu ating said record sheet advancing means each time the record key is inserted in the casing for making a record. 3. A watchman’s recording unit for use in a 20 multiple key watchman’s time recording system, comprising a casing having an opening in a wall thereof for receiving a recording key, cover means for said casing, means in said casing for obstructing the entry of a recording key through 25 said opening when said cover is open, and means operated by said cover for maintaining said ob structing means in a non-obstructing position when said cover is closed. 4. A watchman’s recording unit comprising a casing having an opening for receiving a record ing key, a cover normally closing another open ing by which access otherwise may be had to the contents of said casing, obstructing means adapt ed to be interposed in the ?rst named opening for preventing the insertion of a recording key, and means for interposing said obstructing means in said ?rst named opening, said means being operated by said cover upon the initial move ment of the cover from its closed position. 5. A watchman’s recording unit comprising a 40 casing having an opening for receiving a record ing key, a cover normally closing another open ing by which access otherwise may be had to the contents of said casing, obstructing means for preventing the use of a recording key in said first 45 named opening when the cover is moved from its closed position, and means controlled by said cover for moving the obstructing means to ob structing position during the initial opening movement of the cover and for thereafter main 50 taining the obstructing position of said obstruct ing means for all movement of the cover beyond said initial movement. 6. In a watchman’s recording system with a portable recording unit containing a record sheet 55 and in which record sheet-carrying means is pro vided and arranged for advance by an inserted watchman’s key which controls recording on the record sheet, the combination with said unit of time-imprinting means therein and control means 60 for said time imprinting means, said control means being adapted for positioning by time-set means of a separate time controlled device. '7. In a watchman’s recording system with a portable recording unit containing a record sheet 65 and in which record sheet-carrying means is pro vided and arranged for advance by an inserted watchman’s key which controls recording on the record sheet, the combination with said unit of 70 selectively positionable time-indicating indicia in said unit, means insertable in said unit for selec tively positioning said time indicating indicia in accordance with time, and means associated with said insertable means for automatically setting the same in accordance with time. 8. In a watchman’s recording system with a portable recording unit containing record sheet carrying means and means for advancing said record sheet-carrying means by an inserted watchman’s key which controls recording, the combination with said unit of record time imprinting means in said unit, control means for said time-imprinting means, said control means being adapted for positioning by time-set means of a separate time controlled device, and an ele ment associated with said time-set means for effecting the printing by the prepositioned time imprinting means. 9. In a watchman’s recording system with a portable recording unit containing record sheet 15 carrying means and means for advancing said record sheet-carrying means by an inserted watchman’s key which controls recording, the combination with said unit of selectively position able time~indicating indicia in said unit, a single 20 element insertable in said unit for selectively positioning said time indicating indicia in ac cordance with time, and means associated with said insertable means for actuating the selected one of said time-indicating indicia while the same 25 is being held in its selected position by said single element. 10. A watchman’s recording unit comprising a casing, a record sheet contained therein, a cover for said casing, means in said casing for re 30 cording time characters upon said record sheet, means controlled by said cover for recording upon said record sheet and in relation to the time char acteristics appearing thereon a record each time said cover is opened, and means also controlled 35 by said cover for advancing said record sheet in relation to said time characters recording means each time the cover is opened so as to present di?erent portions of the record sheet opposite said cover-opening recording means for successive 40 recordings of successive openings of the cover. 11. In a watchman’s recording system with a portable recording unit containing a record sheet and in which record sheet-carrying means is pro vided and arranged for advance by the insertion 45 of watchman’s recording keys, the combination with said unit of means normally permitting in sertion to said recording unit of said recording keys for advancing the record sheet and for re cording thereon, a movable cover normally clos ing an opening in said recording unit through 50 which access may otherwise be had to the record sheet and record sheet-carrying means, means for preventing use of the watchman’s recording keys for advancing the record sheet and which is 55 normally in a position permitting such use of the watchman’s recording keys, and means controlled by said cover for displacing said last named means from normal position when said cover is displaced from its normally closed position and for maintaining the same in position to prevent the use of the watchman’s recording keys so long as the cover remains displaced from its normally closed position. 12. In a watchman’s recording system with a 55 portable recording unit containing a record sheet and in which means is provided for enabling in sertion to the recording unit of watchman’s re cording keys which control recording on the rec ord sheet, the combination with said unit of 70 means for enabling insertion to said recording unit of said watchman’s recording keys in the normal use of the same, a movable cover normally closing an opening in said recording unit, a mov able element within said recording unit normally 75 6 2,119,637‘ in a position which permits the use of said recording keys in cooperation with said ?rst named means to control recording on the record strip within said recording unit, and means controlled r by said cover and having connection with said movable element to displace the same from its normal position when the cover is displaced from its normally closed position so that when the cover is so displaced normal use of the watch man’s keys is impossible. LESLEY KENNEDY. ALOIS BEYER. CERTIFICATE OF CORRECTION. Patent No. 2,119,657. June "I, 1958. LESLEY KENNED , ET AL. It is hereby certified that error appears in the printed specification of the above nnmberedpatent requiring correction as follows: Page 5, first column, lines 29 and b0,‘ claims hand 5 respectively, after "unit“ insert the words and comma for use in' a multiple key watchman‘ s time recording system,; and that the said Letters Patent shouldbe read with this‘correc tion therein that the sauna may conform to the. record of the case in the Pat ent Office. a Signed and sealed this 12th day of July, A. D. 1938. ‘ Henry Van Arsdale, (Seal, Acting Commissioner of Patents. CERTIFICATE or CORRECTION. Patent No. 2,119,657.v , ‘ June 7, 1958. ILESLEY KENNEDY, ET AL. It is herebj certified that error appears in the printed specification of the above mlmberedpatent requiring correctionvas follows: Page 54, first column, lines 29 and 1+0,- claims hand 5 respectively, after "unit" insert the words and coma for use in' a multiple key watchman! s time recording system, ; and that the said Letters Patent shouldbe read with this'correc-j, tion therein that the same may conform to the. record of the case in the’ Pat- I entSigned Office. and . sealed this 12th- day of July, A. D, 1958. Henry Van Arsdale, (Seal, Acting'commissioner of Patents.