US1164625A - Impulse-sending mechanism. - Google Patents

Description

A. H. ADAMS. IMPULSE SENDING MECHANISN APPLICATION men NOV. so. 1914.

Patented Dec. 2.1, 1915.

Any

A. H. ADAMS. IMPULSE SENDING MECHANISM. APPLICATION FILED NOV. 30, 1914.

1,164,625; Patented Dec. 21, 1915.

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A. H. ADAMS.

IMPULSE sENnmG MECHANISM.

APPLICATION FILED NOV. (HM 1914.

1,164,625. Patented Dec.21,1915.

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UNITED s reams PATENT one: on.

ARTHUR H. ADAMS, OF SPARKILL, NEW YORK, ASSIGNOR TO WESTERN ELECTRIC COMPANY, OF NEW YORK,

N. Y., A CORPORATION OFILLINOIS.

IMIULSE-SENDING MECHANISM.

Specification of Letters Patent.

Patented Dec. 211, 1 9i 5.

Application filed November 30, 1914. Serial No. 874,682.

citizen of the United States, residing at Spar-kill, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Impulse- Sending Mechanisms, of which the following is a full, clear, concise, and exact description. r

This invention relates to impulse-sending mechanism, and more particulariy to what is known as an overlapping cycle impulsesending mechanism, that is, one in which the dial or actuating means may be set for a subsequent series of impulses, while the im pulse mechanism is operating to send out a previous set of impulses.

The object of this invention is in gene 'al to provide, a device of this class which will be simple, compact and efficient.

In accordance with the general features of this invention, there is provided a dial or actuating-member, and impulse-transmitting mechanism, and a driving means interposed between the actuating member and the impulse-transmitt ng means. The operation of the actuating mechanism serves to store power in the driving mechanism for ope ating the impulse mechanism after the actuating mechanism has returned to normal position.

Means are provided for preventing effective operation of the actuating means during the operation of the impulse-sending mechanism to send out impulses. This feature consists of mechanism wlnch is automatically brought nto position before the beginning .of the rotation of the impulse-sending means to prevent the engagement of the actuating means with the driving means. Means are also provided for locking the actuating means in a subsequently operated position during the operation of the impulse-sending mechanism'in response to a previous operation of said actuating device, said locking means being released as soon as said impulsesendi'ng mechanism reaches normal position. Governing means are also provided for controlling the speed of the mechanism when it is being set, and when it is operating to send out impulses. This means preferably comprises a governor which is LCiZUQi'Bd to .permit the device to rotate at a relatively high'speed during the preliminary or setting movement, and at a slower speed when sending out impulses.

Other features of the invention are the details of construction and combination of parts of the motor mechanism for driving the. parts, and the interconnection of these parts.

In the drawingsFigure l is a perspective view with parts broken away of a transmitter embodying the features of this invention; Fig. 2 is a sectional view of the device taken upon line of Fig. 3; Fi 3 is a view in side elevation of the device with I I{-0 r c 1F parts in section, i s. a, Int 4 are re tail .views of the connecting and actuating means ot the device; Fig. 8 IS a sectional view taken upon line ti -8 of Fig. Fig. 9

'is a detail view of the governing apparatus;

Fig. 10 is a fragmentary detail view of parts of the actuating and connecting devices; and Fig. 11 is a longitudinal cross-sectional view of the device.

In the drawings, 5 designates a cylindrical casing member to which are attached front and back plates 6 and 7. Attached centrally ofthe back plate 7 and extending through the casing is a stud 8 for rotatably supporting the various elements of the device, as will be hereinafter pointed out.

Secured to the outer end. of a. thimble 10, which extends over the forward end of the stud 8 and is rotatable thereon, a finger wheel or dial 11 having a plurality of openings 12, 12 which, when the dial is in normal position, are opposite numerals l to 0 inclusive upon the front face of the f 'ame plate (3. Upon the inner end of the thimble 10 is secured adisl having a plurality of teeth Li, H in its periphery. Secured to the disk 13 is an arm 15 carrying at its outer end a. pivotal pawl 16' which, when the disk 13 is in normal position, is pressed outwardly by a stop member 17, but is adapted. to be moved inwardly when away from the stop by means of a spring 18.

Located adjacent the inner end of the thimble 10 (see Fig. 11) is a rotatable sleeve 20 carrying a disk 21 having teeth 22, 22 in its periphery adapted to be engaged by the pawl 16 when the disk 13 is moved away from normal position. A. second disk 25, having notches 26, 26 in its periphery, is mounted adjacentthe disk 21 upon a sleeve 27, which is rotatable upon the stud 8. The

sleeve 27 is connected with a second sleeve 29 also rotatably mounted upon the stud 8.

Carried by this sleeve 29 is a gear wheel 30 and an interrupter wheel 31. The gear wheel 30 meshes with a pinion 32 upon a stud 33 carried by a bracket 34. Mounted upon the stud 33 is a gear m'eshing with a worm 36 upon the shaft 37 of a centrifugal governing device 38. The interrupter wheel 31 is aaip ted to engage a contact-controlling device 10 in one direction of its movement to operate contact springs 41 and 42.

In the operation of the device the finger wheel 11 is rotated in a forward or clockwise direction in the usual manner-until the finger of the operator reaches a stop 50.

The rotation of the finger-wheel rotates the pawl 16 falls into notches in the disks 21' and 25, and these disks are rotated in a countor-clockwise direction under the power stored in the spring 51. Tlns rotation of the disks 21 and causes the winding up of asecond spring 51, which stores the power necessary to return the disks 21 and 25 to normal position when the finger-wheel and disk 11 are released therefrom, due to the engagement by the pawl 16 with the stop 17.

As hereinbefore stated, the disks 21 and 25 are capable of being angularly displaced with respect to each other, but they are normally held with the notches 22, 22 and 26, 26 in coincidence in the following manner: When the disks 21 and 25 are in normal position, a stop arm 53 on the disk 25 engages the stop 17 to hold the. said disk in normal position, while a. stop pin 56, carried by the disk 21, extends through a notch 57 in the disk and is held against one side thereof by a tensioned spring 58 attached at one end to the disk 21, and 'at its other. end. to the disk 25. A second .spring till, connectedat one end with the disk 13 and at its other end with the disk 21, tends normally to hold the disk 21 with the pin 56 in engagement with the lower side of the slot 57 while the engagement of the pawl 16 with coinciding notches 22 and 26 of the disks 21 and 25, prevents relative movement of these disks while they are being moved by said pawl 16. As soon, however, as the pawl is released from said disks 21 and.25 and they start backward .under the power of the spring 51, the spring 58 will exert sufiicient force to move the disk 21 relative to the disk 25 so that pin 56 comes in engagement with upper side of the slot 5,7, thereby separating the notches of the two disks to prevent the rengagement therewith of the pawl 1.6 until said disks have reached normal position with the disk 25 against the stop 17. lVhen this occurs the spring 59 will draw the disk 21 a sufficient distance forward to bring the stop pin 56 back against the lower side of the notch 57 and thus again bring the notches of the two disks in alinement.

As the disks 21 and 25 move forward in response to the action of the spring 51, the gear wheel 30 and the interrupter wheel 31 are rotated in a counter-clockwise direction. The rotation of the interrupter wheel 31 in this direction has no effect upon the contact springs 11 and 12, since it is in a direction to push the contact-controlling device 40 away from instead of toward the contact springs. The rotation of the gear wheel 30,

however, drives the gear wheel 35, which, 3.:

through the worm 36, drives the centrifugal governing means 38. As will be noted 'particularly by reference to Fig. 9, the shaft 3? of the governing device 38 is longitudinally movable in its bearing-s60 and 61, and will be moved in the direction of rotation of the gear wheel 35. Coijperating with the centrifugal device are two cylindrical bearing surfaces 62 and 63 of different diameters, the engagement of the centrifugal device 38 with the larger of the chambers 62 permitting a high speed, while its engagement with the chamber 63 limits its rotation to a much lower speed. When the various rotatable members are rotating in a counter-clockwise direction, which is the direction of the return movement of the setting dial, the centrifugal device is moved into position to en gage the chamber 62, whereby the parts may be rotated at a. high speed.

,When' the pawl 16 is disengi'tgedfrom the disks 21 and 25, and they start on their re turn movement in a clockwise direction, the interrupter wheel is moved in a direction to cause-the opening and closing of the contact 110 springs -11 and 12 to send out current impulses in accordance with the setting of the dial 11. This movement also moves'the governor shaft 37 longitudinally inits bearings 60 and 61 tobring the centrifugal governor 115 member into engagement with the smaller diameter cylindrical surface 63, whereby the speed of the parts, when sending out impulses, is greatly reduced.

After the dial 11 has been returned 'to 120 normal position and the pawl 16 is released from engagement with the disks 21 and 25, said dial 11 is free to be rotated for the purpose of setting the mechanism from-another series of impulses.' The pawl 16, however, 12:; being prevented from reengaging the disks 21 and 25 while they are being returned to normal position in response to a previous operation of the fingerdial' 11, means are provided for locking said finger dial in a 180 subsequently actuated position until said disks 21 and 25 have returned to normal position as clearly shown in Figs. 'l". 5, (i and T. The locking of the dial ll in its advanced position is accomplished by means of a pawl pivotallv supported in a stationary frame member Tl. This pawl is adapted to be swung in one direction by means of projection 72 carried by the disk 13. which engages a pin 73 projecting from said pawl 70 while an arm 74, carried by the disk 2L is adapted to engage the end of said pawl 70 to swing it in the opposite direction. .1 spring is adapted'to retain said pawl in whichever position it assumes when the projection TZ-and arm T4 are disengaged therefrom. Assuming now that the disk 13 is in its normal position with the proiection 72 engaging the pin 73 ofthe pawl 70, and the disks '21 and 25 are in an advanced position. The arm 74 being out of engagement with the tail of the pawl 70, said pawl will be swung forwardly with the spring 75 inside of the pivotal point of said pawl 70. if now the dial 11 is moved it will move the disk 13 and with it the arm 72, so that the pawl 70 will be in a position to engage the notches or teeth 14, ll. The disks 21 and being 0H normal position and moving in a return direction, the notches 22 and 26 will be sepa 'ated so that the pawl 16 will ride over the peripheral surfaces of these disks. The dial 11 being moved tothe position desired before the said disks 21 and have reached normal position, the pawl 70 will engage one of the notches ll of the disk 13 and retain said dial in such advanced position. As soon, however, as the disks 21. and

25 return to normal position the arm 7 t engaging the tail of the pawl 70 will disengage said pawl from the disk 13, and since the disks 21 and 25 undergo a relative movement upon reaching normal position, which brings the notches 22 and 26 into coincidence, the pawl 16 may engage these. disks 21 and 25 to send outthe impulses corresponding to the last setting of the device.

.V-Vhat is claimed is:' I

1. In animpulse transmitter an interrupter movable in forward and backward directions, contact springs operated by said interrupter in one direction of movement to send out current impulses, setting means for moving said interrupter in one direction to set the transmitter, means operating inde pendently of said setting means to more said interrupter in the opposite direction to send out current impulses, means permitting; the

- movement of said setting means during the movement of said interrupter to send out impulses, and means for preventing the enga-gement of said setting mechanism with said-interrupter during the sending out of impulses, Wherebysaid setting mechanism may'be moved to any predetermined position during the sending out o1 impulses in response to a previous setting.

2. in an impulse transmitter, an interrupter mechanism, setting means for said interrupter movable in l in'ward and backward directions. connecting means interposed between said setting means and said interrupter for causing the setting of said interrupter during: l ackward movement of said settingmeans, means for discha ging said settingmeans from said co'nnecti means when said set in? means returns to normal position. means tor driving" said connecting means and said interrupter in a reverse direction to send out impulses, means permitting a second movement of said setting means [hiring the reverse movement of said connecting means and said interrupter, and

means for preventing the engagementof.

said settine means with said connecting means during the reverse movement oi? said connectii 1 means and said inte rup'ter out permitting such engagement at the end of each reverse movement.

in an impulse transmitter, an interaipter, driving means therefor, an actuating means opcrahm independently of said im-' pulse sending; member to cause the operation of said drivingnieans, means for preventing lorward and backward directions, actuating rupter, driving means therefor operable in means operable independently of said drivinpj means for moving said driving means in a i'orward direction. means 'l'or preventing the engagement ot said actuating means with said driving means during; the back-' Wardanovement of said driving means, and locking: means ehective during the backward movement of said driving means to maintain said actuating means in a position to which lL- may ,e moved during the movement of said interrupter, whereby the transn'iitter may be setfor a. succeeding operation before the completion of a previous one.

5. in an impulsc-transmitting mechanisn'i, an impulse-t 'ansmiltirig; member, a driving: means operable in forward and backward directions, an actuating; means movable in forward and backward directions, means operated by said actuating; means in, its back Ward movement to cause the forward movement of said driving means, means for dis ging said actuating means -l rom said driving means at the end of the backward .movement of said actuating means to perwhich it may be moved during the backward movement of said driving means, and means operated automatically upon the return of said driving means to normal position to release said locking means and permit said actuating means to engage said driving means to actuate said interrupter and send out a series of impulses for which the device was. prepared during the sending out of previous impulses.

6. In an impulse transmitter, an inter- ,rupter'movable in forward and backward directions, contact springs operated by said interrupter in its backward movement to send out current impulses, a setting mecha nism movable in forward and backward directions, a clutch mechanism connected with said interrupter and adapted to be driven by said setting mechanism in its forward movement to move said interrupter in a forward direction, means for releasing said clutch mechanism -from said setting mechanism, means for driving said clutch and interrupter mechanisms in a baclnvard direction to send out impulses. and means for rendering such clutch mechanism ineffective with respect to said setting mechanism during the sending out of impulses,whereby the setting mechanism may be moved to any predetermined position during the effective operation of the interrupter.

7. In an impulse transmitter. an interrupter rotatable. .in forward and backward I directions, contact springs operated by said interrupter in its backward movement to send out current impulses. a rotatable member carryingsaid interrupter. a second rotatable member operable independently of said first-mentioned rotatable member. a setting mechanism carried by said second rotatable member, a pair of clutch members on said first mentioned rotatable member. a clutch member on the second-mentioned 1'0 tatable member adapted to engage the clutch members of the first-mentioned rotatable messes member to rotate said interrupter in one direction, means operating automatically to disengagethe several clutch members means for rotating said interrupter in the opposite direction from its first movement, means for moving the clutch members of the first-mentioned rotating member relative to each other to prevent the engagement therewith of the clutch member of the second-men-- tioned rotatable member, and locking means controlled by the relative movement of the several clutch members to hold the clutch member of the second-mentioned rotatable member in any position to which it may be advanced during the rotation of the interrupter to send out impulses.

R. In an impulse transmitter, an interrupter movable in forward and backward directions, contact springs operated by said interrupter in one direction of movement only, and a governing means for limiting the movement of said interrupter to'a de termined high-speed when moving inone direction and to a limited low speed. when moving. in the opposite direction, said means comprising a centrifugal element, a plurality of cylindrical walls of different diameters for engaging said centrifugal element, and means operated by said interruptei 'for moving saidcentrifugal member into engagement with the separate 'alls, whereby said high and low speeds are obtained.

9'. In an impulse transmitter. an inter rupter movable in forward and backward directions, contact springs operated by said interrupter in one direction of movement only, and a governing means for limiting the movement ot said interrupter to a determined high-speed when moving in one direction and to a limited low speed when moving in the opposite direction. said means comprising a centrifugal element. a pair of cylindrical walls of diti'erent diameters for engaging said centrifugal :dcment. and meansoperated b said interrupter tor mow ing said ccntri'tugal member into engage mentwith the smaller of said walls to produce said low speed and into the larger of said walls to produce said high speed.

In. Witness whcreot'. l hereunto subscribe my name this i th day of November. A. l). lill-l.

A R'llll lt ll. ADAMS.

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