US3761015A - Electrical impulse counter with shockproofing mechanism - Google Patents

Electrical impulse counter with shockproofing mechanism Download PDF

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Publication number
US3761015A
US3761015A US00244458A US3761015DA US3761015A US 3761015 A US3761015 A US 3761015A US 00244458 A US00244458 A US 00244458A US 3761015D A US3761015D A US 3761015DA US 3761015 A US3761015 A US 3761015A
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US
United States
Prior art keywords
counting
drive member
wheel
inertia
rest position
Prior art date
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
Application number
US00244458A
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English (en)
Inventor
Cook J Hayward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
English Numbering Machines Ltd
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English Numbering Machines Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by English Numbering Machines Ltd filed Critical English Numbering Machines Ltd
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Publication of US3761015A publication Critical patent/US3761015A/en
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/04—Design features of general application for driving the stage of lowest order
    • G06M1/041—Design features of general application for driving the stage of lowest order for drum-type indicating means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/04—Design features of general application for driving the stage of lowest order
    • G06M1/041—Design features of general application for driving the stage of lowest order for drum-type indicating means
    • G06M1/042—Design features of general application for driving the stage of lowest order for drum-type indicating means with click devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/04—Design features of general application for driving the stage of lowest order
    • G06M1/041—Design features of general application for driving the stage of lowest order for drum-type indicating means
    • G06M1/044—Design features of general application for driving the stage of lowest order for drum-type indicating means with escapements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/102—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means
    • G06M1/104—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means electromagnets, clicks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities
    • G06M3/12—Counters with additional facilities for preventing incorrect actuation, e.g. for preventing falsification

Definitions

  • a counting instrument comprising a counting wheel', a spring urged drive member and a ratchet and paw] arrangement operatively connecting the counting wheel and drive member, the arrangement being such that in a cycle of operations, the drive member moves forwards against the spring means from a rest position and back to the rest position to index the count wheel by one step, the instrument including an inertia member which is coupled to the drive member by a coupling means such that the inertia of the inertia member arising out of the instrument receiving shock loading tending to move the drive member forwards from the rest position is transmitted to the drive member to restrain the drive member from moving from the rest position.
  • PATENTEB was 1913 SHEET 1 BF 2 PATENTEU8EP25
  • This invention relates to counting instruments of the type wherein a counting means such as a counting wheel is indexed or stepped by a ratchet and panel arrangement which is actuated by moving back and forth a drive member.
  • the drive member in one drive cycle moves in one direction (hereinafter referred to as the forwards direction) and then in the reverse direction (hereinafter referred to as the backwards direction) and in so doing moves the counting wheel round by one step thereby increasing the count by the amount corresponding to one step of the counting wheel.
  • Such instruments will be referred to hereinafter as counting instruments of the type aforesaid.
  • main applications of counting instruments of the type aforesaid are applications in gaming or amusement machines and vending machines.
  • Counting instruments of the type aforesaid are normally used for counting electrical pulses and me drive member is usually driven by the armature of an electromagnetic coil receiving the pulses. It will be appreciated however that the instrument can readily be adapted to count mechanical quantities such as shaft revolutions.
  • This invention aims to provide a counting instrument of the type aforesaid wherein the aforesaid disadvantage may be obviated or mitigated.
  • a counting instrument of the type aforesaid wherein the drive member is spring urged to a rest position which it occupies between cycles of operation, said instrument including an inertia member which can move in the for-.
  • the inertia member is spring urged tending to move same in the forwards direction.
  • the mass of the drive member is preferably less than that of the inertia member.
  • Said means of connection preferably comprises a two armed lever which is pivotally mounted on a stationary part of the instrument and of which one arm is engaged by the drive member and the other arm is engaged by the inertia member such that if the instrument is given an impact tending to move the drive member in the backwards direction, the inertia member moves in the forwards direction and the coupling between the inertia member and drive member is broken.
  • FIG. 1 shows a sectional side elevation of a counting instrument according to a first embodiment of the invention:
  • the shaft 12? serves to carry rotatably seven counting wheels J1-J7 respectively for counting units, tens, hundreds, tens of hundreds and so on.
  • These wheels J1 and J7 are interconnected by known stepping devices 11 so that for one revolution of wheel J1, wheel J2 is index by one step; for one revolution of wheel J2, wheel J3 is'indexed for one step and so on as the count increases to a maximum of 9,999,999.
  • Wheel J1 is driven by electrical input pulses to an electrical coil 16 by the mechanism according to this invention.
  • the said mechanism comprises a reciprocable drive member A, an oppositing inertia weight B mounted on lugs 13, 15 of member A for limited relative movement thereto by pin and slot connections 17, 19, a two arm lever C pivotally mounted on shaft 14, a compression spring E acting between member A and frame 10 and a tension spring F acting between weight B and frame 10.
  • the unit wheel J1 of the counter is integral with ratchet wheel G as shown in FIG. 1 and the member A has opposed pawl ledges 18, 20 which respectively en gage wheel G as the member A is reciprocated in operation, to index wheel J1.
  • the mechanism is shown in a rest position in FIG. 1,
  • De-energisation results in the drive member A moving in the backwards direction to its rest position in which ledge 18 again engages wheel G under the force of spring E and so completing in this embodiment 360 rotation indexing of unit wheel and increasing the count in the instrument by one.
  • the opposing weight B is returned to its rest position by the tension in spring F. This sequence is repeated for each count pulse received.
  • mass B may be of less mass than drive member A if mass B engages lever C at a greater moment distance than does member A so that the inertia moment on lever C due to mass B is greater than that due to member A.
  • both drive member A and opposing weight B will again tend to remain stationary or in effect tend to move in the backwards direction relative to the frame 10.
  • Drive member A is in its rest position with ledge 18 in firm engagement against ratchet wheel G, and cannot move relative to frame 10.
  • Opposing weight B is free to and will move in a direction opposing arrow X relative to frame 10, but such relative movement will not interfere with drive member A, and lever C will simply pivot freely in a clockwise direction in FIG. 1 by an amount dependent upon the relative movement of mass B.
  • the mass B and arm C Upon termination of the effect of the shock-loading, the mass B and arm C will return to the rest position of FIG. 1.
  • the counting instrument illustrated in FIGS. 3 and 4 is basically the same as that illustrated in FIGS. 1 and 2, except for a few modifications. Therefore, parts of the counting instrument of FIGS. 3 and 4 which are common to both embodiments have been given the same references as in FIGS. 1 and 2 and will not be described in detail.
  • FIGS. 3 and 4 The instrument of FIGS. 3 and 4 is modified in relation to that shown in FIGS. 1 and 2, in that the inertia mass B is provided with a transversely extending, supporting foot BI and a single compression spring K acting between foot BI and drive member A replaces springs E and F of the FIGS. 1 and 2 embodiment.
  • a counting instrument having a counting means, a ratchet and pawl arrangement for stepping said counting means to increase the count of said counting means, a drive member which is mounted for forwards movement from a rest position and backwards movement to said rest position in a cycle of operations to actuate the ratchet and pawl arrangement, spring means urging said drive member to the rest position, an inertia member mounted for back and forth movement parallel to the drive member and a pivotally mounted two armed lever of which one arm is engaged by the inertia member and the other arm is engaged by the drive member so as to transmit the inertia force of the inertia member to the drive member to prevent the drive member from moving from its rest position when the instrument receives an impact or shock tending to move the drive member in the forwards direction.
  • a counting instrument according to claim 1, wherein the mass of the inertia member is greater than that of the drive member.
  • a counting instrument including an inertia member loading spring which is additional to said spring means, and which acts to urge the inertia member in the forwards direction.
  • said inertia member loading spring is a tension spring acting between the inertia member and a stationery part of the instrument.
  • said spring means comprises a compression spring acting between the drive member and inertia member to urge the drive member to the rest position and the inertia member in the forwards direction.
  • a counting instrument wherein the counting means is a counting wheel, and the ratchet and pawl arrangement comprises a ratchet wheel which is secured to the counting wheel and a pair of pawl ledges on the drive member which are located at opposite sides of the ratchet wheel to engage the ratchet wheel in turn as the drive member moves back and forth in a cycle of operations thereby to index the ratchet wheel and counting wheel by one step representing an increase of one in the count of the instrument.
  • a counting instrument wherein one of said pawl ledges engages said ratchet wheel in the rest position of the drive member.
  • said counting means comprises several counting wheels and stepping devices connecting said wheels in a series so that for one revolution of any counter wheel except the last wheel in the series, the next counter wheel in the series is indexed by one step
  • said ratchet and pawl arrangement comprises a ratchet wheel which is secured to the first counting wheel in the series and a pair of pawl ledges on the drive member which are located at opposite sides of the ratchet wheel to engage the ratchet wheel in turn as the drive 9.
  • a counting instrument member moves back and forth in a cycle of operations wherein the lever is arranged so that the points of enthereby to index the ratchet wheel and first counting gagement of said members are equally spaced from the wheel by one step representing an increase by one in pivot axis of the lever.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Vibration Dampers (AREA)
  • Lock And Its Accessories (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
US00244458A 1971-06-02 1972-04-17 Electrical impulse counter with shockproofing mechanism Expired - Lifetime US3761015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1859771 1971-06-02

Publications (1)

Publication Number Publication Date
US3761015A true US3761015A (en) 1973-09-25

Family

ID=10115186

Family Applications (1)

Application Number Title Priority Date Filing Date
US00244458A Expired - Lifetime US3761015A (en) 1971-06-02 1972-04-17 Electrical impulse counter with shockproofing mechanism

Country Status (7)

Country Link
US (1) US3761015A (xx)
JP (1) JPS5432310B1 (xx)
DE (1) DE2226898C3 (xx)
FR (1) FR2139855B3 (xx)
GB (1) GB1339163A (xx)
IT (1) IT959028B (xx)
NL (1) NL7205608A (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974694A (en) * 1975-09-24 1976-08-17 Columbia Gas Service Corporation Remote digital indicator attachment for a gas meter
US4031361A (en) * 1976-01-14 1977-06-21 Rockwell International Corporation Electromechanical counter
EP0021761A1 (en) * 1979-06-15 1981-01-07 Eaton Corporation Drive mechanism for converting reciprocating motion into intermittent progressive rotary motion
US4250404A (en) * 1978-04-12 1981-02-10 Tamura Electric Works, Ltd. Electromagnetic counters
WO1981001212A1 (en) * 1979-10-26 1981-04-30 Mecom Standard Ltd Number wheel counters
US4532415A (en) * 1981-06-23 1985-07-30 Mecom Standard Limited Number wheel counters
US5103468A (en) * 1989-09-16 1992-04-07 Ing. Fritz Kubler Zahlerfabrik Gmbh Electromechanical counting device with unintentional count prevention structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470361A (en) * 1967-12-28 1969-09-30 Enm Co Counter
US3619577A (en) * 1969-05-21 1971-11-09 Veeder Industries Inc Clapper counterweight
US3677468A (en) * 1970-07-22 1972-07-18 Veeder Industries Inc Counter mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470361A (en) * 1967-12-28 1969-09-30 Enm Co Counter
US3619577A (en) * 1969-05-21 1971-11-09 Veeder Industries Inc Clapper counterweight
US3677468A (en) * 1970-07-22 1972-07-18 Veeder Industries Inc Counter mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974694A (en) * 1975-09-24 1976-08-17 Columbia Gas Service Corporation Remote digital indicator attachment for a gas meter
US4031361A (en) * 1976-01-14 1977-06-21 Rockwell International Corporation Electromechanical counter
US4250404A (en) * 1978-04-12 1981-02-10 Tamura Electric Works, Ltd. Electromagnetic counters
EP0021761A1 (en) * 1979-06-15 1981-01-07 Eaton Corporation Drive mechanism for converting reciprocating motion into intermittent progressive rotary motion
WO1981001212A1 (en) * 1979-10-26 1981-04-30 Mecom Standard Ltd Number wheel counters
US4532415A (en) * 1981-06-23 1985-07-30 Mecom Standard Limited Number wheel counters
US5103468A (en) * 1989-09-16 1992-04-07 Ing. Fritz Kubler Zahlerfabrik Gmbh Electromechanical counting device with unintentional count prevention structure

Also Published As

Publication number Publication date
JPS5432310B1 (xx) 1979-10-13
DE2226898B2 (de) 1980-03-27
NL7205608A (xx) 1972-12-05
IT959028B (it) 1973-11-10
DE2226898A1 (de) 1973-01-25
GB1339163A (en) 1973-11-28
FR2139855A1 (xx) 1973-01-12
DE2226898C3 (de) 1980-11-20
FR2139855B3 (xx) 1978-01-20

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