US1143364A - Time-recorder. - Google Patents

Description

C. M (RUSK,

TIME RECORDER:

APPLHIATION FILED EEK/13,1910.

' l atente 6 SHEETS-SHEET in C. M CROOK.

T!ME RECORDER.

APPLICATION FILED MAY 13, 1910'.

Patented June 15, 1915.

6 SH'EETSSHEET 2 717526265360 67%QMW 4% .jrzuzmior C. M. CROOK.

TIME RECORDER.

APPLICATION FILED MAY 13. 1910.

Patented June 15, 1915.

6 SHEETS-SHEET 3.

/ Jul (71%?" C. M. CROOK.

TIME RECORDER.

APPLICATION FILED mAYla, i910.

C. M. CROOK.

TIME RECORDER.

APPLICATION man MAY13,1910.

1,143,364. Patented June 15, 1915.

6 SHEETS-SHEET 5.

UNITED STATES PATENT OFFICE.

CHARLES MADISON CROOK, OF CHICAGO, ILLINOIS, ASSIGNOR TO STROMBERG ELECTRIC COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

TIME-RECORDER.

Specification of Letters Yatent.

Patented J une 15, 1915.

Application filed May 13, 1910. Serial No. 561,152.

To all whom it may concern Be it known that I, CHARLES MADIsoN CnooK, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Time-Recorders, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to improvements in time recorders and is particularly adapted for recording the time a Workman begins and stops work.

It is particularly advantageous for use in shops, factories and the like, where it is desirable to record the time a workman passes into the works in the morning, out at lunch,

in at theend of the lunch time, out again at night and in and out time of extra working hours.

One of the advantageous features of my invention is that the impression mechanism is arranged to make an impression on the face of the time card when the card is inserted in the machine with its face toward the operator.

In practice, it is the usual custom to provide racks in proximity to the time recorder, in which racks each workmans card is supported face outward so that it can be readily seen. Heretofore time recording instruments for this class of work have been constructed so that the card must be inserted in the recorder facing toward the rear of the machine or away from the workman. This necessitates the turning over of the card each time the workman inserts it in the machine for recording his time. lVhile the time consumed in thus turning over the card for eachindividual workman is slight, when it is multiplied by two or three hundred workmenit becomes a seriously objectionable feature.

My recorder is so constructed that it overcomes the above objection.

It is one of the objects of my invention to provide an in and out time recorder which shall be strong and durable and which will not readily get out of order under severe treatment.

Another object of my invention is to provide a recorder which may be operated inv multiple, and which when so operated,

of the recorders may be controlled from a single clock mechanism whereby the danger of variance in time between the various recorders will be obviated.

For the purpose of disclosing my invention, I have illustrated in the accompanying drawings and described in the specification one embodiment thereof.

In the drawings-Figure 1 is a front elevation of the recorder with the cover removed; Fig. 2 is a sectional view on the line 22 of Fig. 1; Fig. 3 is a detailside elevation of the impression mechanism; Fig. 4 is a sectional view taken on the line 44 of Fig. 2; Fig. is a sectional view taken on the line 55 of Fig. 1; Fig. 6 is a detail view of the card elevating mechanism; Fig. 7 is a sectional view taken on the line 77 of Fig. 4; Fig. 8 is a detail view of the means for laterally shifting the card holder; Fig. 9 is a sectional view taken on' the line 99 of Fig. 8; Fig. 10 is a sectional view taken on the line 10-10 of Fig; 4; Fig. 11 is a sectional view taken on the line 1l11 of Fig. 2; Fig. 12 is a perspective view of the setting key used in connection with my recorder; Fig. 13 is ,a front elevation of the recorder; Fig. 14: is a face view of the card used in connection with the time recorder; Fig. 15 is a detail View of the in and out indicating mechanism; and Fig. 16 is a sectional view taken on the line 16-16 of Fig. 7.

In the embodiment of my invention illustrated in the accompanying drawings, I provide a time impression mechanism 17 which preferably takes the form of the impression mechanism illustrated in my pending application Serial No. 466,486, filed December 8, 1908. It is not considered necessary in this present application to give a detail description of this impression mechanism. Suffice to say that the impression mechanism is provided with a plurality of impression wheels adapted to print the hours, minutes and the day of the week. Of course, other indicia may be used in place of that above indicated, but I have found that in practical use these indicia are those which are generally preferred. Associated with this impression mechanism is an operating electromagnet 18 comprising a pair of solenoids, the armature 12 of which is connected to the impression mechanism and is adapted to rotate the wheels of the impression mechanism in accordance with the change in time, the armature being preferably moved once every minute. Also associated with the impression mechanism. is a hammer 20, operated from the exterior of the casing, by which the impression is caused to be made.

For holding the card in position with respect to the impression mechanism, I provide a card guide 21 which is laterally movable and associated with the card guide is means 22 for elevating the card in said guide to bring the day of the month indicated on the card in proper alinement with he impression mechanism.

The impression mechanism is mounted upon the upper end of an upwardly extending arm 23 secured to a pivoted frame 24, which frame is mounted upon a shaft 25 extending between a pair of horizontally extending supports 26 integrally formed with the base 27 of the instrument. The electromagnet 18 and the armature 19 operated thereby are also secured to this pivotally mounted frame 24.

Bolt extensions 28 of the cores'of the solenoids are adapted to pass through openings in a pair of arms 29 formed on the frame and have nuts 30 secured on the rear end for holding the solenoids in position. Also secured on the frame 24 is an insulating base member 31 carrying connections for the supply wires extending to the coils and also binding posts 33 to which the operating wires of the apparatus are adapted to be attached.

. The hammer 20 for making the impression is mounted upon a shaft 34 extending between the two horizontal supporting members 26 and comprises a hammer arm 3.) and a lever 36, which I preferably incline slightly forward. The lever 36 is arranged to cooperate with a cam wheel 37 mounted upon the shaft 25. Extending from the lever 36 is a short lever 38. to which one end of a coil spring 39 is attached, the opposite end of the spring being adapted to be attached to a post 40 eX- tending outwardly from the base. This spring maintains the hammer in a forward position. When the cam wheel 37 is rotated by suitable operating mechanism the hammer is moved rearwardly and then released, and under the influence of the coil spring 39, snaps forward, striking the rear of the card and forcing the face thereof against the impressionmechanism.

For the purpose of inking the impression mechanism, I provide an inking ribbon 41, and means in the; form of a train of gears 42 suitably operated for moving the ink ng ribbon across the face of the impression mechanism to vary the point of contact of the ribbon with the impression mechanism from time to time.

maaeca For rotating the cam wheel 37 which is preferably provided with four cam surfaces, I provide a ratchet wheel 43 mounted on the hub of the cam wheel 37, and having the same number of cam surfaces as the cam wheel. This wheel 43 is partially rotated by a pawl 44 mounted on the outer end of a bell-crank lever 45 secured on a shaft 46 journaled in one of the horizontal side members 26 and adapted to extend through a slot formed in the other side member to be supported in a journal 47 formed on the base. A second pawl 48 also mounted on the lever 45 is adapted to engage the ratchet wheel on its inner side to complete the movement of the ratchet wheel.

For returning the lever45 to normal position after each impression, I provide a coil spring 49, one end of which is connected to the armature supporting frame 24 and the other end to the second arm 50 of the bellcrank lever 45. The two pawls 44 and 48 are held into engagement with the ratchet wheel by a coil spring 51 which extends between them, serving to draw the ends of the pawlstogether. The shaft 46 is operated by a suitable handle 52 which is detachablylsecured to the shaft 46. It will be noted that the front pawl 44 does not give a complete rotation of the cam 37 but merely rotates the same far enough for the roller carried on the end of the lever 36 of the hammer to pass ed the cam and snap inwardly. This much of the rotation given by the pawl 44 to the ratchet wheel 43 is imparted as the handle 52 is turned downwardly, or on the downward movement of the pawl-carrying lever 45. The rest of the rotation of the ratchet 43 is given by the inner pawl 48 as the lever returns to normal position. This peculiar movement is provided in order that there shall be no snapping action of the pawl 44 over the teeth of the ratchet wheel 43 which action would tend to wear out the teeth.

The ribbon feed mechanism 42 is driven fromthis same pawl-carrying lever 45. In practice I provide a vertically extending lever 53, the upper end of which is pivoted to the frame of the impression mechanism 17. This lever is provided with a pawl 54 held into engagement with the ratchet wheel 55 of the ribbon-feeding mechanism by a coil spring 56, one end of which is connected to the pawl and the other end of which is connected to the lever. Ihe lower end of the lever 53 is providedwith an inwardly inclined cam slot 57 adapted to fit over a roller 58 carried on the pawl-carrying leyer 45, whereby as the lever 45 is carried downwardly the lower end of the lever 53 is moved outwardly, moving the pawl 54 up one tooth on the ratchet wheel 55 and as the pawl-carrying lever 45 moves upwardly again the lever 53 is moved inwardly,- carrynausea the horizontal supporting members 26 ofthe impression mechanism. The card receiver is carried on a transversely extending rod 6% which is adapted to extend through openings, formed in inwardly extending projections 65 on the two side guides 59, and is supported at its outer ends upon a pair of upper horizontal supports 67, which at their inner ends are secured to the base 27 The card guide is provided with a pair of inwardly extending arms 68 to which is secured a rack 69 adapted to mesh with a pinion 70 mounted on a stem 71 j ournaled in the base 27 and adapted to extend through the top of the casing.

Secured on the stem 71 is a thumb nut 72 which is arranged upon the exterior of the casing and is adapted to rotate the stem to move the guide 20 laterally. This thumb nut 72 is hollow and is secured upon the stem by a nut 73 adapted to screw on the outer end of the stem, a coil'spring 74 being interposed between this nut and an annular shoulder 75 formed on the lower end of the thumb nut, to hold the thumb nut down. The bottom ofthe thumb nut is provided with grooves 76 adapted to engage an upwardly projecting pin 77 formed on the base. In order that the card guide may not be tampered with and may be only moved by persons in authority, the holding nut is provided with a small.screw 78 having an annular shoulder 79 adapted, when the screw is set, to bear against an annular shoulder 80 formed on the interior of lthe thumb nut. By this arrangement, when the screw is set home, the thumb nut cannot be pulled upwardly and the grooves in the bottom thereof disengaged from the pin. The top of this screw 78 does not extend clear to the to of the'thumb nut and is, at its end, provlded with a key-receiving projection 81.

I For preventing the screw from being removedentirely 1 provide an annular screw member 82 adapted to screw into the top of the thumb nut and provided with an opening into which the head of the small screw projects. By this arrangement it will be noted that when the key 83 is inserted and the small screw 78 turned until it is sufficiently raised to permit the thumb nut 72 to be raised to clear the stop 77, the thumb nut can be rotated and the card guide moved laterally. At the same time when the small screw 78 is seated, the thumb nut 72 cannot be raised and unauthorized persons cannot move the card guide 20 laterally, the key 83 being required for operating the screw 78.

As a slot must be left in the top of th casing to accommodate the lateral movement of the card guide 20, it is desirable to provide some means whereby this slot will be closed. This slot, in the present instance, is closed by a pair of arc-shaped follower members 84, one arranged on each side of the card guide 20 and adapted to follow the guide in its transverse movement. These arc-shaped followers are mounted upon arms 85 pivoted in turn upon the base 27 and are held into engagement with the sides of the guide 20 by a coil spring 86. By this arrangement the follower members do not take up a large amount of lateral space and securely close the unoccupied space of the opening in the casing.

For elevating the card so that the impression made thereon will correspond to the day of the week printed on the card, I provide a card elevator 22 which extends in the path of the card as it is placed in the card guide 20 and is carried by a transversely extending arm 87 supported on a'vertically movable rack member 88. This rack member moves up and down on a vertical guide 89 carried on a horizontal arm 90 extending from the base 27. The front of the rack member is providedwith a rack 91 adapted to mesh with the pinion 92 on an indicator wheel 93, the shaft of which is also carried by the horizontal arm 90. This wheel may have on its face any indicia desired, but in the present form has the days of the week. When the rack member 88 is in its lowermost position, Monday will appear on the front of the wheel. As the rack member is raised the succeeding days of the week will be caused to appear. The back of the rack member 88 is provided with a rack 94 adapted to mesh with a pinion 95 mounted upon a shaft 96 journaled in the arm 90. The pinion 95 has a blank portion 97 for a purpose more fully hereinafter described. A ratchet wheel 98 is mounted on the shaft 96 and is adapted to be engaged by the spring pressed pawl'99 for the purpose of holding the rack member 88 in any position to which it may be moved.

The shaft 96 is not ofs'uflicient length to project beyond the side of the casing so that a key 83 must be used for rotating the same, a key projection 100 being provided on the end of the shaft for that purpose.

In operation, assuming the rack member 88 is in its lowermost position and therefore the card elevator is also in its lowermost osition, the card may be inserted in the guide 20 and vwill drop down to the lowest point whereby the impression will be made on the line indicated on the card as Monday. Turning the shaft 96 one notch will raise the card elevator so that the card will be printed on the line indicating Tuesday, and the indicator wheel will be rotated to show Tuesday. The card elevator is made thus to rise until it reaches the limit of its upper movement at which time the blank portion 97 of the pinion 95 will permit'the rack member to drop by gravity rotating the indicator wheel and moving the elevator back to its Monday position. 1n rotating the shaft 96, there is danger of the operator, after the elevator is moved to its uppermost position, and the rack has been permitted to drop by gravity, to rotate the shaft so rapidly that the teeth of the pinion 95 would again catch in the rack 94 before the same had dropped to its lowermost position. This would throw the mechanism out of correct indicating position and would cause serious trouble before the same could be again adjusted. in order to prevent this, 1 provide a rotatable stop 101 at the end of the shaft 96 abutting the pinion 95 which will prevent the pinion from engaging the rack after the rack has reached its highest position until the rack has been returned to its initial position. This result is accomplished by means of a plate 88 secured to the inner face of the rack 88 and having a narrow upper portion 88 exposing the teeth of the upper end of the rack and a wider portion 88 covering the teeth on the lower end of the rack. After the rack member has reached its highest position and the pinion passed out of engagement with the rack, if the pinion is turned in the direction of operative position before the rack has dropped, the stop 101 will engage the end of the plate 88, as shown in Fig. 6, or if the pinion is turned quickly while the rack is falling, the stop 101 will strike against the outer face 88? of the wide portion of-the plate and hold the pinion in that position until the rack has reached its lowermost position, as shown in Fig.5, when the stop can passoff the side 88 over the shoulder 88, thus permitting the pinion to again be brought in engagement with the rack.

Therefore, in order to let the rack drop back, this stop must be moved out of position.

Extending across the horizontal standard 07 is a cross member 103 upon which is mounted a clock face 104:, which is provided with hands adapted to be driven from the impression mechanism. The clock face is provided with an opening 105 and adapted to-slide beneath the face is an in and out indicator106, I have shown in practice this indicator as having an A. M. in and A. M. out, P. M. in and P. M. out, and Extra in and out, whereby the various times of enteringrand leaving the establishment will be indicated. This indicator moves in synohronism with the card guide so that the with openings 109 and 110 through which the clock dial and the indicating wheelgm'ay be observed. Every portion of the mechanism is completely inclosed by the casing with the exception of the thumb nut 7 2 for moving the card indicator laterally, and the handle 52 for operating the impression hammer. The side of the casing is provided with an opening through which the key 83 may be inserted to operate the shaft 96 but it will be observed that this shaft does not project beyond the face of the casing so that unauthorized tampering with the indicator wheel is prevented.

One of the side members 26 is provided with a bell 111 adapted to be struck by a hammer 112 carried on the impression ham-- mer shaft 34, whereby when the workman inserts hiscard and makes an impression the bell will ring.

While I have shown and described one embodiment of my invention in the accompanying drawings and specification, it will be understood that various modifications and changes may be made herein without departing from the spirit of my invention as set forth in the appended claims.

Having thus described my invention what I claim as new and desire to secure by Let ters Patent, is

1. In a time recorder, the combination with a casing adapted to be secured against a wall, of a laterally movable card-holder arranged in said casing and having a portion thereof adapted to extend through said casing, and arc-shaped follower members arranged on each side ofthe said card-holder immediately beneath the opening in the easing, for closing that portion of the opening not occupied by the card-holder.

2. In a time-recorder, the combination with a casing, of a laterally movable card-holder arranged therein and adapted to have a p01" tion thereof extend through said casing, arcshaped closure members for closing that portion of the opening in the casing not occupied by the card-holder, and means for holding said followers in engagement with the card-holder, causing them to move synchronously with said card-holder.

8. In a time recorder, the combination with a casing, of a card holder arranged in said casing, impression mechanism coiiperating with said card holder also arranged in said casing, means for moving said card holder laterally, comprising a rotatable stem arranged exteriorly of the casing, a stop normally engaging said stem to prevent its rotation, said stem being vertically movable to permit it to be disengaged from said stop, and key-controlled means for locking the stem against vertical movement.

at. In a time recorder, the combination with a casing, of a card holder arranged therein, time impression mechanism cooperating with said card holder and also arranged within the casing, means for shifting the card holder laterally, a rotatable member arranged on the exterior of said casing for operating said means, a stop on said casing, a shoulder on said rotatable member, said rotatable member being vertically shiftable to be disengaged from said stop, and keycontrolled means for locking the rotatable member against vertical movement;

5. In a time recorder, the combination with impression mechanisnnof a hammer associated with said impression mechanism and means for operating'said hammer, comprising a rotatable cam, a ratchet wheel con nected with said cam and adapted to be rotated a definite distance to cause the cams to operate the hammer, a pawl for rotating said ratchet wheel a part of the said distance and a second pawl for rotatingthe pawl the balance of the distance;

6. In a time recorder, the combination with impression mechanism, of a hammer associated with said impression mechanism, means for operating said hammer comprising a cam wheel, a ratchet wheel for rotating said ,cam wheel, and a pair of pawls for rotating said ratchet wheel arranged on opposite sides of said ratchet wheel.

7. In a time recorder, the combination with impression mechanism, a hammer associated with said impression mechanism, means for operating said hammer comprising a cam wheel, a ratchet wheel for rotating said cam wheel, a lever, a pawl carried by said lever and arranged upon one side of said ratchet wheel and a second pawl ,carried by said lever and arranged upon the opposite side of said cam wheel, one of said pawls being arranged to rotate the cam wheel as the lever is moved in one direction, the other pawl being arranged to rotate the cam wheel as the lever is moved in the opposite direction. 7

8, In a time recorder, the combination with a card-holder, of card-elevating mechanism associated therewith comprising a card elevator, a rack connected therewith, a rack wheel adapted to mesh with said rack to raise the same and having a portion thereof blank, whereby when the rack has been raised to a sufiicient extent the wheel will be disengaged therefrom, and means for preventing the rack wheel from again engaging the rack until the rack has been moved back to normal position.

9. In a time recorder, the combination with. a card-holder, of card-elevating mechanism associated therewith comprising a card elevator, a rack connected therewith, a rack wheel for operating the same, having a blank portion thereon whereby the wheel will become disengagedfrom the rack after it has been moved a predetermined distance, a ratchet wheel connected with said rack wheel, and a pawl adapted to engage the teeth of said ratchet for holding the rack in any position to which it may be moved.

10. In a time recorder, the combination with a card-holder, of a card-elevating mechanism associated therewith comprising a card elevator, a rack connected therewith, a stop portion arranged at the bottom of said rack, a rack wheel adapted to engage said rack to move the same and having a portion thereof blank, whereby the wheel will be disengaged from the rack after it has been moved to a predetermined position, and a stop carried with said rack wheel adapted to engage said stop portion on the rack to prevent the teeth of the wheel from being moved into engagement with the rack until the rack has been moved to normal position.

11. In a time recorder, the combination with a card holder, of impression mechanism associated therewith, a platen coop-' crating with said impression mechanism, means for causing a relative movement between said platen and impression mechanism, comprising a rotatable cam and ratchet for operating said cam, an arm, pawls mounted on said arm for rotating said ratchet, a ribbon for inking said impression mechanism, feed mechanism for said ribbon, and means connected with said arm for operating said ribbon feed mechanism.

12. In a time recorder, the combination with a card holder, of impression mechanism associated therewith, a platen cooperating with said impression mechanism, means for causing a relative movement between said platen and impression mechanism, comprising a rotatable cam, a ratchet for operating said cam, an arm, pawls arranged on said arm for rotating said ratchet,

a ribbon for inking said impression mechanism, feed mechanism for said ribbon, a lever connected with said arm, and pawl and ratchet mechanism operated by said lever for operating the ribbon feed mechanism.

13. In a time recorder, the combination with an impression mechanism, of a lat-' erally movable card-holder in front of and associated withsaid impression mechanism, a clock associated with said impression mechanism and driventhereb an opening in the face of said clock, an an indicator arranged to movesynchronously with said impression mechanism comprising hour and minute revoluble printing wheels mounted in a horizontally straight line in front of said platen, a card receiver mounted between said platen and impression mechanism, ar-

' ranged to permit insertion and withdrawl therefrom of an impression receiving card, and laterally movable to cause the impression mechanism to print in vertical columns, said impression mechanism being mounted in front of the card holder to make an impression on the card when the same is inserted in the holder with its face toward the operator, an electromagnet suitably mounted and arranged to be intermittently energized, the armature of which operates a lever mechanism for intermittently rotating the type wheels of the printing mechanism, and a vertically movable stap on which the bot tom of the card rests, constructed to be raised step by step to cause the impression mechanism to make impressions on different horizontal lines.

15. A time recorder of the type making straight line impressions, having in combination a rear supporting base, a vertically arranged card receiver mounted in front of said base and laterally movable to cause impressions to be made in dilferent vertical columns on the impression receiving card, a platen extending between said base and card receiver, an impression mechanism comprising revoluble type wheels mounted in a horizontally straight line, said impression mechanism being mounted in front of the type holder and constructed and arranged to make the impression on the front of the impression receiving card when said card is inserted in the holder with its front toward the operator, a suitably mounted electromagnet arranged to be intermittently energized, the armature of which is mechanically connected with the impression mechanism to intermittently operate the type wheels thereof, said platen and impression mechanism having a relative movementto permit the making of an impression.

16. In a time recorder, in combination, a casing, impression mechanism arranged in said casing, a card holder for supporting a card within said casing while receiving an impression and laterally shiftable to permit the'impression to be made at various points on the card, said casing having a slot in the top thereof to accommodate the card holder and of sufiicient length to permit the holder to travel to the limit of its lateral movement, and closure members on either side of said card holder immediately beniaaeee neath the slot for closing that part of the slot unoccupied by the card holder, and arranged to move, as the card holder is laterally shifted, in a path extending beneath the top of the casing and along the sides of the casing.

17. In a time recorder, in combination, a casing, impression mechanism in said casing, a card holder for supporting a card withinsai'd casing while receiving the impression and laterally movable to permit the impression to be made in different vertical columns on the card,'said casing having a slot in the top thereof to accommodate the card holder and of sufficient length to permit the card holder to travel to the limit of its lateral movement, and closure members arranged on either side of said card holder immediately beneath the slot for closing that portion of the slot unoccupied by the card holder, said closure members being held against the card holder by spring pressure to cause the same to move with the card holder.

18. In a time recorder, in combination, a casing,impression mechanism in said casing, a card holder for supporting a card within said casing while receiving the impression to permit the impression to be made in different vertical columns, a slot in the top of the casing to accommodate the card holder and of sutlicient length to permit the holder to travel to the limit of its lateral movement, follower members independently supported with respect to the cardholder on either side of said card holder and immediately beneath the slot for closing that portion of the slot unoccupied by the cardholder, and means for causing said follower members to automatically move with the card holder.

19. In a time recorder, in combination, a casing, impression mechanism arranged within said casing, a card holder for supporting a cardin position to receive an impression from said mechanism and laterally movable to permit the impression to be made in different vertical columns, shifting mechanism for said card holder for moving the same laterally within said casing, a rota table stem extending through said casing for voperating said shifting mechanism, stops on casing for moving said card holder laterally to permit the impression to be made in different vertical columns, a rotatable thumb nut on the exterior of said casing connected with said shifting mechanism, a stop on said casing normally engaging said thumb nut, said thumb nut being vertically movable to be disconnected from said stop, means for locking said thumb nut against vertical movement, and a separable key for operating said locking means.

21. In a time recorder, in combination, a casing, impression mechanism within said casing, a card holder for supporting a card in position to receive an impression from said mechanism and laterally shiftable to permit the impression to be made in different vertical columns, shifting mechanism for said card holder, comprising a rack connected therewith, and a pinion rotatably mounted on a shaft extending through the top of said casing, a thumb nut vertically movable on said shaft, a stop on said casing engaged by said thumb nut for preventing the same from operating, and key-operated means for locking the said thumb nut against vertical movement.

22. In a time recorder,in combination, a casing, impression mechanism mounted within said casing comprising a base member secured to the back of said casing, an arm pivotally mounted on said base member, a self-contained time impression mechanism mounted on said arm, and a card holder arranged between said base and said impression mechanism and a platen mounted on said base.

23. In a time recorder, in combination, a casing, impression mechanism arranged within said casing comprising a base member secured to the back of said casing, an arm pivoted at its lower end to said base member, a self-contained time impression mechanism mounted on the upper end of said arm and comprising a plurality of revoluble type wheels arrangedin a horizontally straight line operated in train, an elec tromagnet mounted within said casing and mechanically connected with said type wheels for operating the same, a laterally shiftable card holder arranged Within said casing and extending between said type wheels and the back of the casing, and a platen arranged in the rear of said card holder.

Qei. In a time recorder, the combination with a casing, of a base secured to the back of said casing, an arm pivoted to said base, a head mounted on the top of said arm and carrying revoluble type wheels operated in train and arranged to print in a straight line, means for rigidly securing said head against movement, a dial having movable indicating members operating synchronously with said printing wheels and viewable from the exterior of the casing, a card holder arranged within said casing and mounted behind said head, said card holder being laterally movable to permit an impression to be made thereon in different vertical columns, and a platen mounted between the back of said casing and the card holder.

25. In a time recorder, the combination with a casing, of a base secured to the rear of said casing, an arm pivotally mounted on said base, a head secured to the upper end of said arm and carrying revoluble type wheels operating in train, an electromagnet mounted on said arm and mechanically connected with said type wheels for intermittently operating the same, a laterally shiftable card holder mounted between said arm and said base, a card elevator arranged within said casing for moving thecard vertically, a movable platen mounted between the back of the casing and said card holder, means arranged upon the exterior of said casing for operating said platen to cause an impression to be made, and key-operated means for operating said card elevating mechanism.

In witness whereof, I have hereunto subscribed my name in the presence of two Witnesses.

CHARLES MADISON OROOK.

Witnesses E. R. KING, W. PERRY IIALEY.

It is hereby certified that in Letters l etent No. 1,143,364, granted June 15, 1915, upon the application of Charles Madison Crook, of Chicago, Illinois, for an improvement in Time-Recordefs,errofs appear in the printed specification requiring correction as follows: Page 44:, strike out the eentence contained in lines 51-52; same page, lines 1 06107, strike out the WOTdS adapted to be secured against a Wall; page 6, line 12, for the Word wi'thdmwl read withdrawal; same page,

line 25, for the Word step read etop; and that the said Letters Patent sheuld be read with these corrections therein that the same may conform to the reeerd of the ease in the Patent @ffiee.

Signed and sealed this 27th day of July, A. 1)., 1915.

SEAL e. e. WHITEHEAD,

Acting Commissioner of Patents"

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