US3800301A - Telephone timer - Google Patents

Telephone timer Download PDF

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Publication number
US3800301A
US3800301A US00236358A US23635872A US3800301A US 3800301 A US3800301 A US 3800301A US 00236358 A US00236358 A US 00236358A US 23635872 A US23635872 A US 23635872A US 3800301 A US3800301 A US 3800301A
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United States
Prior art keywords
time
card
wheel
time stamp
hammer
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00236358A
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English (en)
Inventor
R Danke
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Simplex Time Recorder Co
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Simplex Time Recorder Co
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Publication date
Application filed by Simplex Time Recorder Co filed Critical Simplex Time Recorder Co
Priority to US00236358A priority Critical patent/US3800301A/en
Priority to GB1111673A priority patent/GB1423711A/en
Priority to JP48029120A priority patent/JPS4914220A/ja
Priority to SE7303675A priority patent/SE384750B/xx
Priority to DE2313086A priority patent/DE2313086A1/de
Priority to FR7309469A priority patent/FR2177316A5/fr
Priority to BR731980A priority patent/BR7301980D0/pt
Priority to US436148A priority patent/US3890624A/en
Application granted granted Critical
Publication of US3800301A publication Critical patent/US3800301A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/02—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data
    • G07C1/08—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data wherein the time is indicated by marking an element, e.g. a card or tape, in position determined by the time
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/02—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data
    • G07C1/04—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data wherein the time is indicated in figures
    • G07C1/06—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data wherein the time is indicated in figures with apparatus adapted for use with individual cards

Definitions

  • ABSTRACT 346/84 g6 g53 A time recorder for recording elapsed time by stam [58] i 84 83 82 ing on a card the starting and terminating times, ina 3 2 eluding a slot into which the card is inserted and a striking hammer that swings transversely of the slot to press the card against a printing ribbon and a time [56] References Cited stamp UNITED STATES PATENTS 487,433 12/8192 Stahlberg 346/91 15 Claims, 17 Drawing Figures memmmesmn 3.000.301
  • time interval is shown, this often being accomplished on a dial which is printed on the card. Since the operator has limited space on her console, it is desirable that this time recorder be quite thin and that it be adapted for flush mounting. In addition, modern business methods have led to optical scanning of such cards for the purpose of computing bills. In the past, time recorders have suffered from a number of disabilities that prevent this type of operation from being entirely successful. For one thing, the limited space available in thin time recorders has resulted in a printed character that isnot clear and distinct. Furthermore, under certain conditions, the time printing wheels, particularly those which are faster moving (such as the l/lOth of a minute wheel) often rotate to positions between characters, so that no character is printed, and the optical scanner is unable to find a character to record.
  • Another object of this invention is the provision of a time recorder in which the fastest moving time wheel is driven continuously to avoid the use of pawl and ratchets, but which, nevertheless, centers each character adequately.
  • a further object of the present invention is the provision of a time recorder capable of giving a printed image particularly adaptable to optical scanning.
  • a still further object of the invention is the provision of a time recorder having time print wheels operated by pawls, in which the wheels are securely locked against movement except at the moment when a pawl engages a wheel, and in which the unlocking mechanism is not capable of accidentally moving into a condition where all of the wheels remain unlocked.
  • Another object of the invention is the provision of a time recorder of simple and rugged construction which is capable of a long life of useful service with a minimum of maintenance.
  • the invention consists of a time recorder having a housing with a slot into which a time card can be inserted, having a time stamp located in the housing at one side of the plane of the slot, and having an inking ribbon lying adjacent the time stamp.
  • a striking hammer is located on the other side of the plane of the slot. Means is provided associated with the hammer to store energy and release it suddenly to move the hammer toward a card lying in the slot and driving it against the ribbon and the time stamp.
  • the time stamp is provided with means for driving its fastest moving wheel continuously and yet providing for lining up a character when the energy is suddenly released and returning the wheel to its original position before that time.
  • the time stamp is provided with a locking bar to prevent movement of most of the time wheels except when a pawl engages a ratchet, the mechanism being provided to release the locking bar at that time and returning it to locking position after the ratchet has moved a wheel.
  • the housing is built in two parts that are hingedly related for ready access to the interior.
  • a slot is provided with two portions that lie in staggered relationship to permit successive stamping of the card at different positions thereon.
  • FIG. I is a perspective view of a time recorder embodying the principles of the present invention.
  • FIG. 2 is a front elevational view of the recorder
  • FIG. 3 is a side elevational view of the time recorder
  • FIG. 4 is a plan view of the time recorder with a cover removed
  • FIG. 5 is a side elevational view of a portion of the recorder
  • FIG. 6 is a side elevational view of the portion of the recorder
  • FIG. 7 is an end view of the portion of the recorder taken on the line VIIVII of FIG. 6,
  • FIG. 8 is a horizontal sectional view of the invention taken on the line VIII-VIII of FIG. 6,
  • FIG. 9 is a side elevational view of another portion of the recorder.
  • FIG. 10 is another side elevational view of a portion of the recorder
  • FIG. 11 is a sectional view of the invention taken on the line XIXI of FIG. 10,
  • FIG. 12 is an elevational view of a portion of the recorder
  • FIGS. 13, 14, and are horizontal views of the portion of the recorder shown in FIG. 12 illustrating the method of operation
  • FIG. 16 is an enlarged sectional view of a portion of the recorder taken on the line XVIXVI of FIG. 9, and
  • FIG. 17 is an exploded perspective view of the elements shown in FIG. 16.
  • the time recorder indicated generally by the reference numeral 10
  • a sheet metal cover 12 covers most of the mechanism, but an entrance abutment 13 extends through the cover and is provided in its upper part with two slots 14 and 15 into which a time card can be inserted.
  • An operating PRINT handle 16 is pivotally attached to the abutment 13 by means of a hinge pin 17 and normally rests against a stop pin 18 extending from the upper part of the abutment 13.
  • the cover 12 is provided with an aperture 19 for a purpose to be explained more fully hereinafter. Between the slots 14 and 15 extends a divider wall 21, and the slots 15 and 14 are provided with the indicia IN and OUT, respectively.
  • the cover 12 is provided with a window 22 through which can be seen time elements forming part of the mechanism.
  • the surfaces of the slots 14 and 15 are slanted toward the divider wall 21 and that they are non-coextensive by a substantial amount in such a way that a time card inserted in one slot is displaced by that substantial amount from a time card placed in the other slot.
  • FIG. 2 it can be seen that the underside of the deck 11 is provided with a box-like sheet metal enclosure 23 into which a portion of the time recorder extends.
  • the underside of the handle 16 is provided with a plastic pad 24 which engages the top end of a vertical plunger 25 which is vertically slidable relative to the entrance abutment 13.
  • the plunger 25 is spaced.forwardly of the entrance abutment 13 by a substantial amount. It can be seen that the stop pin 18 engages a small notch 26 formed on the upper edge of one of the legs of the handle 16.
  • the time recorder consists of a frame 27 divided into two portions, a time portion 28 and a stamp portion 29, the portions being hinged for vertical swinging motion about one end with the pivot being provided by a vertical shaft 31.
  • an indicator 32 On the upper surface of the time portion 28 is an indicator 32 which is keyed to a shaft 33 and is divided into a dark portion (preferably colored red) and a light portion (preferably colored white), these portions appearing through the aperture 19 of the cover 12 on occasion.
  • a suitable stop pin 34 engages one side of the indicator on occasion.
  • Extending from the top of the time portion 28 is a shaft 35 to which is keyed a gear 36. This gear engages another gear 37 mounting on a protruding end of a vertical shaft 38 which is parallel to and spaced from the shaft 35.
  • a small gear 39 is also keyed to the shaft 38 but at a different vertical level from the gear 37.
  • This gear is connected by a timing belt 41 which also extends around a gear 42 mounted in the frame 27 and adapted to drive a series of time clock wheels 43 which are located so that they can be seen through the window 12 (see FIG. 1)
  • FIG. 5 shows a side view of the stamp portion 29 with the time portion 28 removed.
  • the plunger 25 is shown as being slidably mounted for vertical movement in bearings 44 and 45 carried in top and bottom plates 46 and 47, respectively of the frame.
  • a coil spring 48 holds the plunger 25 in normally upwardly-biased condition and only by pressing downwardly on the handle 16 is it moved vertically downwardly.
  • a lever 49 is swingably mounted on a pivot pin 51 carried on an extension 52 of the bottom plate 47. One end of the lever 49 is pivotally connected to the lower end of the plunger 25 by a hinge pin 53, while the other end is connected by a hinge pin 54 to a vertical bar 55.
  • the upper end of the bar 55 is pivotally connected by a pin 56 to an extension of a plate 57 rotatably mounted on a horizontal shaft 58 mounted in the frame 27.
  • a pawl 59 Swingably carried on the plate 57 is a pawl 59 which is resiliently urged inwardly toward the shaft 58 by a spring 61. The pawl is thus urged into contact with a row of ratchet teeth 62 formed on the outer periphery of a rotatable element 63 rotatably mounted on the shaft 58 independently of the movement of the plate 57.
  • a pair of parallel arms 64 and 65 are pivotally mounted at one end on the shaft 31 and at the other end secured to a hammer plate 66.
  • Another pair of arms 67 and 68 are also pivotally mounted on the shaft 31 but, of course, spaced inwardly from the arms 64 and 65.
  • the ends of the arms 67 and 68 not pivoted on the shaft 31 are joined by a bar 69. Pressing against this bar is a U- shaped spring 71, the legs of which are wrapped around the shaft 31 and secured thereto to act as a torsion spring.
  • a leaf spring 72 which is of a generally U- shaped configuration when viewed from above, has one leg welded to the plate 66 and the other end free but overlying the bight of the spring 71 and resting against the bar 69.
  • the legs 67 and 68 rest on an annular row 72 of cams which are integral with the element 63 rotatably mounted on the shaft 59, that is to say, these cams are integral and move with the ratchet teeth 62.
  • a latching bar 73 which serves to hold together the free ends of the hinged time portion 28 and stamp portion 29.
  • the upper part of the plate 57 is provided with a notch 74 within which lies the tapered lower end of a finger 75. This finger is bent around through an opening 76 in a back wall of the stamp portion 29 and will be described more fully hereinafter.
  • an electric motor 77 hanging downwardly from the time portion 28 of the recorder as well as the timing belt 41 and the gear 42.
  • FIG. 6 shows the inner side of the stamp portion 29. Only a small portion of the time portion 28 is shown along with the hinge shaft 31.
  • This view shows how the ends of the spring 71 extend through suitable apertures in a back wall of the frame and engage the shaft 78.
  • This view shows how the finger 75 protrudes through the opening 76 and extends along the inner surface of the frame. It is provided with slots which ride along pins 79 and 81 so that it is capable of horizontal sliding movement.
  • the finger 75 is, therefore, connected to an elongated bar 82 and, on this bar is slidably mounted another bar 83 which is similarly provided with an elongated slot slidable on the pin 81 at one end and at its other end it is connected by a spring 84 to a pin extending from the front of the bar 82 and slidable in a suitable slot in the bar 83.
  • the bar 83 not only slides horizontally with the bar 82 but also is capable of independent sliding against the tension of the spring 84.
  • a finger 85 mounteded in the stamp portion 29 is a vertical shaft 86 around which is wound a printing ribbon 87.
  • the other end of the ribbon 87 is wound around a shaft 88 which is also vertically mounted in the stamp portion 29 at the forward end thereof. Extending from the bar 82 is a pawl 89 engaging a ratchet 91 mounted at the top of the shaft 86 to cause winding of the ribbon 87 from the shaft 88 to the shaft 86.
  • the slots 14 and are provided with sloping surfaces 92 and 93, respectively, which assist in leading a time card downwardly into the narrow slot.
  • the divider wall 21 serves to define the two slots leading down through the entrance abutment 13 into the interior of the mechanism.
  • This figure of the drawings shows the rivets 94 and 95 by which the latching bar 73 is pivotally attached to the frame.
  • the finger 75 is shown folded around the wall through the opening 76 and the pawl 89 is shown engaging the ratchet 91.
  • a small Iocking pawl 96 formed of sheet metal is shown engaging the ratchet 91 also.
  • FIG. 8 shows the manner in which the latching bar 73 is provided with a barbed end 97 which engages a post 98 provided on the time portion 28. It can be seen that the leg 67 is provided with a tooth 99 which is adapted to fall into the notches or cams in the cam row 72. It can also be seen that the hammer plate 66 is provided with striking pads 101 and 102 which operate through slots formed in the back wall of the frame, the slots being indicated in dotted lines in FIG. 6 and given the reference numerals 103 and 104.
  • FIGS. 9 and 10 show the inner and outer side views, respectively, of the time portion 28 of the recorder.
  • the structure is made up of an upper and a low plate 105 and 106 held in spaced parallel relationship by posts 107 and 108. Legs 109 and 111 extend downwardly from the plate 106 and combine with the extension 52 on the stamp portion 29 to support the recorder on a flat surface when necessary.
  • the output shaft of the motor 77 is connected through a coupling 112 to the shaft 35 which, as has been described in connection with FIG. 4, is provided with a gear 36 where it extends above the plate 105.
  • This gear operates through the gear 37 on the shaft 38 through the gear 39 and the timing belt 41 to drive the gear 42 and, therefore, the time clock wheels 43.
  • the rotation of the shaft 35 also causes rotation of a gear 113 which drives a gear 114 mounted on a vertical shaft 115. This, in turn, drives a gear 116 mounted on a shaft 117.
  • a pawl plate 118 is swingably mounted on the shaft 117 and is reciprocated by a cam 119 mounted on the shaft 35.
  • a cam follower 121 transfers the cam motion to the plate 118.
  • This cam plate operates a series of pawls which, in turn, operate various wheels rotatably mounted on the shaft 106; these elements constitute a time stamp 122 of the type shown and described in the United States patent of Deane et al., US. Pat. No. 2,355,514 which issued on Aug. 8, 1944.
  • the indicator 32 mounted on the shaft 33 is rotatable with that shaft.
  • a bellcrank 125 having one arm provided with a plastic protective sleeve 126 which engages the rolled up portion ofa ribbon 87 on the shaft 88 of the stamp portion 29.
  • the other arm of the bellcrank is connected by a coil spring 127 to a ring 128 surrounding the shaft 108.
  • FIG. 12 it can be seen that the shaft 35 and the gear 113 are connected by an unusual lost motion device.
  • Two spaced parallel collars 129 and 131 are keyed to the shaft 35, while the gear 113 is free to rotate on it.
  • a peg 132 is fixed to the gear 113 and extends vertically upwardly into a peripheral slot 133 (see FIG. 13) formed in the gear 113.
  • a similar peg 134 is fixed to a washer 135 which is also rotatably mounted on the shaft 35 and underlies the gear 113, and this peg 134 extends vertically upwardly and downwardly from the washer 135. It extends upwardly through a slot 136 formed in the gear 113 and into a notch 137 formed on the periphery of the collar 131.
  • Th washer 135, incidentally, is also formed with a notch 138 through which the pin 132 extends to terminate close to the collar 129.
  • the gear 116 which is integral with the seconds wheel 139, is provided with a star wheel 141. Resting on this star wheel and on the gear 114 associated with the shaft 115 is a plate 142. This plate is provided with elongated apertures 143 and 144 through which the shafts 117 and 115, respectively, extend. These apertures are elongated to allow motion of the plate in a horizontal plane in a direction of a line joining the shafts 117 and 115. The forward edge of the plate 142 is provided with a notch 145 (see FIG. 9 which is adapted to engage the finger 85 on the bar 83 (see FIG. 6) when the time portion 28 and the stamp portion 29 are in closed locked condition.
  • a pointed cam 146 which is adapted .to engage the star wheel 141 when the plate 142 is moved to the right in FIG. 14. This is for the purpose of aligning the characters on the seconds wheel 139 so that they are exactly in line with the corresponding characters in the time stamp 122.
  • a spring 147 which is coiled around the shaft and has one arm which engages the pin 134 to thrust it in one direction and another arm which engages the pin 132 to thrust it in the other direction. In the position of REST, the spring 147 presses the pin 134 to the far side of the notch 137 in the collar 131 and to the far side of the notch 138 in the washer 135.
  • the pin 134 is fixed to the washer 135, extends through the slot 136 in the gear 113 into the notch 137 in the collar 131. Its lower end also resides adjacent the collar 129.
  • the cam 146 engages the teeth on the star wheel 141 and this aligns a character 148 with the rest of the characters on the time stamp 122 for the stamping operation.
  • the energy stored in the spring 147 drives back in the manner shown in FIG. and returns the star wheel and the seconds wheel 139 to its original condition before the stamping operation started, so that no time is lost.
  • the mechanism represented by the collar 129, the washer 135, the gear 113, and the collar 131 operating with the spring 147, the pins 132 and 134, and the various notches and slots provide a lost motion device which allows the seconds wheel 139 to be moved in either direction to line up its closest character to the correct position and then will return the seconds wheel to the condition it would have occupied if this compensating motion had not taken place.
  • the shaft 117 is provided with time wheels, each of which is provided with an integral ratchet wheel, the time wheels and ratchet wheels being independently rotatable on the shaft 117.
  • a typical ratchet wheel 149 is shown provided with notches 151 whose leading edge is provided with a radial surface and whose trailing edge is inclined to a radial line, which wheel is driven by a pawl 152 having one end pointed to engage the notches 151 and the other end pivotally connected to a shaft 153 which is carried with the pawl plate 118 as it swings about theshaft 117.
  • a series of locking pawls 154 rotatably mounted on a shaft 115. It will be noted that its operative portion has a right angle cut to engage the leading edge of the notch 151 and an inclined portion which can engage the inclined trailing surface of the notch 151. Hingely mounted on the shaft 123 is the lock bar 124 having a vertical edge 156 which engages a rightangled notch 157 formed on the locking pawl 154. Extending from the notch 157, the locking pawl 154 is provided with a curved surface 158.
  • the locking pawl 154 is biased toward the wheel 148 by a spring 159 connecting an arm on the pawl to the shaft 123.
  • the locking bar 124 is rotatably biased in the other direction by a spring 161 connecting a back edge of the bar to the shaft 155.
  • Located beneath the time stamp 122 on the shaft 117 are several elements associated with the locking bar 124. These include a locking bar release element 162 which is rotatably mounted on the shaft 117, a latch 163 which is rotatably mounted on a stub shaft 64 extending upwardly from the bottom of the pawl plate 118, and a cam plate 165 which is fixed to the frame by the fact that the shafts 155 and 117 pass through it.
  • the locking bar 124 is provided with an extension 166 having a vertical edge 167 which lies in a U-shaped notch 168 formed in the release element 162. Almost diametrically opposite this notch 168 the release element 162 is provided with a horn 169 which is engaged on occasion by a hook 171 formed on the latch 163.
  • the latch 163, as is evident in the drawing, is much thicker than the elements 162 so that it subtends not only the thickness of the release element 162 but also that of the cam plate 165, so that the end of its hook 171 rests and slides along an in-.
  • This surface has sufficient angularity to the radius extending outwardly from the shaft 117 to cause the hook 171 to feed radially outwardly on occasion to release itself from the horn 169.
  • the motor 77 In order to be operative, the motor 77 must be connected electrically and the timers set by hand so that actual time of day as well as the calendar date appear on the time stamp 122 and the seconds wheel 116. The time of day will appear in the window 112 because of the time wheels 43 showing through the window.
  • the time recorder When the time recorder is used by a telephone operator to time long distance calls, she fills out her time card with the necessary information including the telephone number of the caller, as well as the telephone number, name, and address of the called station.
  • the conversation she inserts the time card in the slot 15 and this stamps the date and time that the conversation begins.
  • she terminates, she inserts the same card in the slot 14 and presses the handle 16 to stamp it with another line indicative of the date and time of termination.
  • placing the card in the slot 15 means that a certain printing area on the card is lined up with one of the slots 103 and 104 behind which is the pad 101 on the hammer, which is directly lined up with the line of characters on the time stamp 122 and the seconds wheel 139.
  • Placing the card in the slot 14 means that the card is moved toward the front of the machine and the same line appears at a spaced parallel position on the card.
  • the same motor 77 that is driving the time stamp 122 and the seconds wheel 139 is also driving the time clock wheels 43 through the medium of the timing belt 41 and associated gearing.
  • the tooth 99 rides up the inclined back edge of one of the cams causing the arm 67 and its corresponding arm 68 to move away from the back wall of the frame carrying the hammer plate 66 with it. This winds up the spring 71 so that considerable energy is stored. Eventually, the tooth 99 falls over the straight edge of the cam and the hammer is thrown forcibly against the back wall of the frame. The pads 101 and 102 are thus thrust violently through the slots 103 and 104 and they strike the time card against the ribbon 87 and both of them against the time stamp 122 and the seconds wheel 139, thus producing an image on the time card.
  • the leaf spring 72a is very weak compared to the spring 71 and the normal location of the hammer plate 66 is such that the pads 101 and 102 are rearwardly of the back wall of the frame, so that it is possible to withdraw the time card without difficulty after the stroke of the hammer has taken place.
  • the plate 57 is returned after the tooth 99 drops into the next valley in the cam row 72 because of the spring 48 urging the plunger 25 into its upward condition.
  • the spring 84 maintains the tooth 85 and the bar 83 in the right-hand position on the bar 82 but, of course, the bar 82 is maintained to the right-hand position in between striking by the spring 48, as has been described.
  • the motor 77 operates continuously and rotates the shaft 35 continuously in the manner that has been described, irrespective of whether the handle 16 is ever depressed or not.
  • the finger 85 on the bight 83 engages the notch 145 on the plate 142 and thrusts it to the right.
  • the cam 146 engages the star wheel 141 and centers the star wheel and also places a character 148 in line with the characters on the rest of the time stamp. This is necessary to give a clear image on the time card, so that the time card can be read by optical scanning means. It not only assures that a single character and not parts of two characters is printed, but also that the character is directed directly along the line of stampings so that a clear image is produced.
  • the moving of the star wheel 141 and the seconds wheel 139 also causes backward or forward rotation of the gear 116 which is associated with them.
  • FIG. 14 shows the situation that exists when the cam 146 moves the star wheel in an advanced condition, in which case it is returned backwardly later, while FIG. 15 shows what happens when the cam 146 attracts the star wheel (counterclockwise rotation) and returns it again to its former position.
  • FIGS. 16 and 17 is illustrated the manner in which the wheels 149 of the time stamp 122 are locked between thrusts from the pawls 152. It will be understood that, with the type of time stamp used, only one pawl or the series of pawls is actually operating on a wheel at any given time, so that, if all of the locking pawls 154 were released in order to allow the pawls 152 to operate, all but one of the wheels would be loose on the shaft and could vibrate to wrong positions. For that reason, although the locking bar 124 is released from the pawls, nevertheless, it will be understood that only one of the locking pawls 154 will be moving outwardly.
  • the pawl plate 118 swings about the shaft 117, it carries the shaft 153 with it, and this carries the pawl 152 in a thrusting position circumferentially of the wheel 149 until it engages a notch and produces an incremental rotation of the wheel 149. Swinging of the pawl plate 118 also carries with it the latch 163 whose hook 171 engages the horn 169 on the release element 162. The release element, therefore, rotates about the shaft 117 and, eventually, swings to a position where the latch bar 124 swings free of the notch 157 and the lock pawl 154. This allows the lock pawl to swing outwardly away from the ratchet wheel 149 and free and slide along the land between the notches 151.
  • the edge 156 of the locking bar slides along the surface 158 and, eventually, snaps into the notch 157 on the locking pawl and locks it in place so that it cant move until the next cycle.
  • a time recorder comprising:
  • a housing having a slot into which a time card can be introduced
  • the energy storage means associated with the hammer, the energy storage means including a main spring and a cam for loading the spring and suddenly releasing it, and
  • a swingable handle being provided adjacent the said entrance and operating through a plunger and levers to rotate a rotatable plate, the plate having a pawl which engages a ratchet wheel to which is concentrically attached an annular row of cams, and the hammer being mounted at the ends of arms which are hingedly connected at their other ends and which have a tooth in their intermediate portions which engages the row of cams, the rotatable plate having a notch which engages a finger on a reciprocable bar, the bar having a finger which engages a notch on a reciprocable plate associated with the time stamp, so that operation of the handle serves to center a character on a wheel of the time stamp.
  • a time recorder comprising:
  • a housing having an entrance which a time card can be introduced, the housing consisting of a time portion and a stamp portion, each portion being generally elongated, the portions being hingedly connected at one end,
  • a time stamp mounted on a time stamp shaft located in the housing at one side of the plane of the entrance, the entrance consisting of two parallel slots, each of such a length as to exactly receive the card, the slots being non-coextensive by a substantial amount, so that, when the card is introduced into one slot, a first position on the card lies beside the time stamp and, when the card is introduced into the other slot, a second position on the card lies beside the time stamp.
  • a printing ribbon lying adjacent the time stamp c. a printing ribbon lying adjacent the time stamp, d. a striking hammer located on the other side of the plane of the entrance, e. energy storage means associated with the hammer,
  • f. means releasing the energy to urge the hammer toward the said plane to press the card against the printing ribbon and both the card and the ribbon against the time stamp
  • a pawl mechanism driven by the motor and operative through pawls engaging ratchet wheels to index the wheels
  • k. means to bring the closest character on the additional wheel to a printing position for printing in alignment with characters on the other wheels, the means being operative after printing to return the additional wheel to the position it would have occupied if printing had not taken place,
  • a release element mounted on the shaft and engageable with the locking bar, the release element being rotated about the shaft with the pawl mechanism and having a notch that envelopes an edge of the locking bar and carries it away from the surface of the locking pawl during rotation, and
  • a latch mechanism at the other ends of the portions of the housing to hold the portions together with the time stamp, the plane of the card, and the striking hammer in closely adjacent relationship.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Meter Arrangements (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
US00236358A 1972-03-20 1972-03-20 Telephone timer Expired - Lifetime US3800301A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00236358A US3800301A (en) 1972-03-20 1972-03-20 Telephone timer
GB1111673A GB1423711A (en) 1972-03-20 1973-03-07 Time recorder
JP48029120A JPS4914220A (ru) 1972-03-20 1973-03-14
DE2313086A DE2313086A1 (de) 1972-03-20 1973-03-16 Zeitdrucker
SE7303675A SE384750B (sv) 1972-03-20 1973-03-16 Tidstempel
FR7309469A FR2177316A5 (ru) 1972-03-20 1973-03-16
BR731980A BR7301980D0 (pt) 1972-03-20 1973-03-20 Aperfeicoamentos em registrador de tempo
US436148A US3890624A (en) 1972-03-20 1974-01-24 Time recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00236358A US3800301A (en) 1972-03-20 1972-03-20 Telephone timer

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US436148A Division US3890624A (en) 1972-03-20 1974-01-24 Time recorder

Publications (1)

Publication Number Publication Date
US3800301A true US3800301A (en) 1974-03-26

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ID=22889160

Family Applications (1)

Application Number Title Priority Date Filing Date
US00236358A Expired - Lifetime US3800301A (en) 1972-03-20 1972-03-20 Telephone timer

Country Status (7)

Country Link
US (1) US3800301A (ru)
JP (1) JPS4914220A (ru)
BR (1) BR7301980D0 (ru)
DE (1) DE2313086A1 (ru)
FR (1) FR2177316A5 (ru)
GB (1) GB1423711A (ru)
SE (1) SE384750B (ru)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190974A (ja) * 1985-11-22 1986-08-25 Nec Corp 相補型ｍｉｓ電界効果半導体装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US487433A (en) * 1892-12-06 Time-stamp
US908971A (en) * 1902-10-07 1909-01-05 Dey Time Register Company Time-registering clock.
US1262703A (en) * 1915-07-10 1918-04-16 Torey Ross Time-recorder.
US1469988A (en) * 1922-08-11 1923-10-09 Int Time Recording Co Ltd Recorder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US487433A (en) * 1892-12-06 Time-stamp
US908971A (en) * 1902-10-07 1909-01-05 Dey Time Register Company Time-registering clock.
US1262703A (en) * 1915-07-10 1918-04-16 Torey Ross Time-recorder.
US1469988A (en) * 1922-08-11 1923-10-09 Int Time Recording Co Ltd Recorder

Also Published As

Publication number Publication date
SE384750B (sv) 1976-05-17
DE2313086A1 (de) 1973-10-04
FR2177316A5 (ru) 1973-11-02
BR7301980D0 (pt) 1974-09-24
JPS4914220A (ru) 1974-02-07
GB1423711A (en) 1976-02-04

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