US1313066A - Electromechanical registering and resetting mechanism - Google Patents

Description

. C. N CAHUSAC. ELECTROMECHANICAI. REGISTERING AND RESET'IING MECHANISM- 7 APPLICATION FILED MAR- 20. Hill. I 1,313,0 Patented Aug. 12, 1919.

2 SHEETS-SHEET I.

I c. N. CAHUSAC.

ELECTROMECHANICAL REGISTERING AND RESETTING MECHANISM.

APPLICATION FILED MAR. 20, I917.

Patented Aug. 12, 1919.

2 SHEETSSHEET 2.

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CLARENCE N. CAHUSAC, OF JERSEY CITY, LYEW JERSEY, ASSIGNOR TO SLQCU'M, AVRALNE & SLQCUM, INC., 013 NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented Au 123, 1919.

Application. filed March 20, 191?. Serial No. 156,088.

To all whom it may concern."

Be it known that I, CLARENCE N. CAiiosAo, a citizen of the United States, and resident of Jersey City, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Electromechanical Registering andltesetting Mechanisms, of which the following is a specification. 1

My invention relates to electro-inechanical registering and resetting mechanisms, and has for its object to provide an improved construction of the same whereby the registering mechanism may be disengaged from the actuating mechanism to release it for resetting, and may be retained in said disengaged position until it is desired to restore it to operative position.

My improved construction also includes certain other minor novel details of construction as hereinafter will be more definitely pointed out and claimed, reference being had to the accompanying drawings, in which Figure 1 is a front View of my improved device with the oover-plate removed.

Fig. 2 is a central vertical sectional view taken through the same.

Fig. 3 is a detail sectional view taken on the line HI-IH Fig. 2, with the coverplate removed Fig. 1 is adetail view of the magnetarmatures and their parts.

Fig. dis a detail view of the shifting lever for throwing the parts into and out of operative position.

Similar numerals of reference denote corresponding parts in the several views.

In the said drawing, the reference numeral 1 denotes a base-plate or block adapted to be secured to a wall, said plate or block carrying a metal frame 2 which supports substantially all of the operative mechanism of the device, and is supported from the base 1 by three posts 8, but one of which is shown in Fig. 2, said frame being secured to said post by the screws &. The frame 2 is shaped in its interior to form the oppositely disposed poles 5, the same being wrapped with wire to form the magnets 6 upon opposite sides of said frame. Also mounted upon the base 1 are the bindin posts 7, which are connected by wiring Wit the magnets 6 in a manner well understood, but not shown, said binding posts affording means for connectingsaid magnets with a source of electric energy, hereinafter to be described. Fixed to and projecting from the inner side of the frame 2 is a cross-plate 8, best seen. in Fig. 1, the same receiving the small end 9 of shaft 10 and forming the inner bearingof the same. Said shaft 10 projects outwardly from the frame 2, and near its outer end passes through an aperture in a plate 11, which. is secured to three posts 12 projecting from and formed integrally with the frame 2 by means of screws 13. Mounted to rotate freely upon the shaft 10 is a. pinion 14-, to which is fixed alarger ratohet'wheel 15, and also mounted upon said shaft 10 is a member constituting two oppositely disposed armatures 16, adapted to co-act with. the poles 5 of the magnets 6 when the latter are energized. Said armatures 16 carry a common stop 17, adapted to contact with an abutment 18 formed on the frame 2, and said armatures are normally spring-pressed against said abutment by means of the coiled spring 19 wound artund the post 10 and engaged at one end at 20 with said armatures and at its other. end with a pin 21 fixed in an ear 22 projecting from the cross-plate 8. The member forming the armatures 16 has pivoted thereto at one side near the stop 17 a pawl 23, adapted to engage the ratchet-wheel 15, said pawl being normally pressed toward said ratchetwheel by a spring 24, as best seen in Fig. 4%, and in order to prevent any back movement of the ratchet-Wheel 15, I provide a stopspring 25 engaging therewith and passing out through the frame 2 at the top and being secured thereto by means of the screw 26. Fixed to the shaft 10 outside of the pinion 14 is another pinion 27, and fixed to and carried by said pinion is a wheel 28 having an interior gear, while disposed between said interior gear and the pinion 14 is aplanet gear 29 for transmitting motion from said gear 14*. to said wheel 28 and pinion 27. As'shown in dotted lines in Fig. 1, the pinion 27 is in mesh with a larger gear-wheel 30 mounted upon a suitable shaft that is supported by the frame 2, and fixed to move with said gear-wheel 30 is a small gear-wheel 31 which in turn meshes with another larger gear-wheel 32, also mounted to rotate freely on the shaft 10, and which has an elongated hub 33 passing through the plate 11 surrounding said shaft 10 and having fixed at its outer end a-small indicating hand 34 corresponding to the hour-hand of a clock. Also fixed to the hub 33 just outside of the geanwheel 32 is a small wheel 35 having a single tooth 36 that is adapted normally to mesh with a larger gear-wheel 37, said wheels 35 and 37- conjointly forming a Geneva movement. The wheel 37 is mount ed upon a-shaft 38 that in turn is seated and longitudinally movable in a bracket 39 forming part of the frame 2, and said wheel 37 is pressed normally to its outermost position by a coil-spring 40 on said shaft 38. The shaft 38 projects through an aperture in the plate 11, and alsothrough a glassplate 41 carried by a metal frame 42 that 1 is screwed to the plate 11. Said shaft 38 has screwed onto its outer end a. knob 43 whereby it may be manipulated, as hereinafter described. Also mounted upon a squared sleeve 44 fixed upon the shaft 10 is another hand 45, the same corresponding to the minute hand of a clock, the hands 34 and 45 being disposed between the plate 11 and glass-plate 41, as best seen in Fig.2. The mechanism as a whole is inclosed in a metal casing 46 apertured to fit closely around the projecting portion of the frame 42, and being retained in posit-ion against any but positive displacement by means of spring-arms 47 fixed to the base 1 and bent at their outer ends to engage depressions 48 in said casing 46. Also mounted in screwthreaded engagement with the outer end of the shaft 10 outside of the glass-plate 41 is a knob 10 whereby said shaft 10 may be rotated when desired.

Mounted transversely on trunnions 49 journaled in the frame 2 is a cross-bar 49, adapted to be rocked freely on said trunnions, and having connected thereto a hand-- lever 50 which projects upwardly through the platell and through a slot 51 in the frame 42 so as to project at its upper end entirely outside of the casing. This crossbar 49 at one side carries a bent arm 52v that is adapted to engage a pin 53 fixed to the pawl 23, so that when said cross-bar 49 is rocked in one direction the bent arm 52 will shift said pin 53 and the pawl 23, so that the latter will be forced out of engagement with the ratchet-wheel 15. Similarly upon the opposite side of the cross-bar 49 is fixed a pin 54 that is adapted to engage and force the spring 25 away from the ratchet-wheel 15 at the same time that the pawl 23 is disengaged therefrom.

The gear-Wheel 37 is provided on its outer surface with a series of radially-disposed numerals, including zero, 12, and multiples of 12, whereby said wheel may register twelve hours and multiples'of twelve hours, this registry being observed through an aperture 55 formed in the plate 11, there being a corresponding aperture in an overlying 'with the lever 50 moved to its lowermost position in the slot 51, the pawl 23 and spring 25 are thrownout of engagement with the ratchet-wheel 15, so that by manipulating the knob 10 the shaft 10, together with the hands 34 and 45, may be rotated without resistance to return them to Zero .or twelve oclock position, it being apparent that the only reslstance offered to this movement will be that of the train of gearing between the ratchet-wheel 15 and the said hands. With the lever 50 shifted to its uppermost position in the slot 51 the pawl 23 and spring 25 are released to renew their engagement with the wheel 15. By referring to Figs. 3 and 5, it will be seen that when the cross bar 49 is shifted to position to disengage the pawl 23 and the spring 25 from the ratchet wheel 15, the pressure of said pawl and spring on the arm 52 and pin 53, respectively, will be exerted substantially in the line of the axis of said bar, thus exerting no pressure on said bar tending to force it to the position shown in Fig. 3, whereby said bar will remain without being held in said adjusted position. This occurs through the fact that the lever 50, when shifted to the dotted line position shown in Fig. 5, brings the main portion of the .bent arm 52 into alinement with the pin 53, and also brings the portion 25 of thespring 25 into contactwith the pin 54. With the parts in this position, the pressure of the pin 53 and the spring 25 will be exerted upon the bent arm 52 and the pin 54 respectively in a line parallel with the axis of the bar 49, as readily will be understood. This construction renders unnecessary any manual retention through the lever 50, and leaves the device set, in either adjusted position. Now it will be observed, by reference to Fig. 4, that an electric impulse energizing the magnets 6 will cause the double armature 16 to be attracted to the poles 5, correspondingly shifting the pawl 23 carried by said armatures, and consequently shifting the ratchet-wheel 15 one step. This motion will be communicated to the pinion 14 movin with said ratchetwheel, and through t e lanet-gear 29-to the wheel 28, from which it will be impartto indicate one hour, in the manner of an ordinary clock movement. At the same time, the wheel will-be rotated as is the hour hand 34 and when said hour hand has completed twelve hours the single tooth 36 of said wheel :55 will actuate the wheel 37 one step to indicate twelve hours through the aperture 55. In order to shift the wheel 37 to return the-same to zero, the knob A3 first is depressed against the tension of spring 40, whereby said wheel 37 will be dlsengaged from the wheel 85, whereupon it may be rotated to the zero position without resistance.

My improyed construction is adapted more particularly for use in connection with a master clock, and is intended to indicate the time of operation of one particular machine. Thus, the device is arranged in an open circuit in connection with this particular machine, said circuit remaining open so long as the machine is idle but belng closed automatically when said machine starts to operate. Also disposed in said circuit is a master clock, which is, arranged to impart electric impulses at predetermined intervals, so that if the machine is in operation, said electric impulses will be imparted to the magnets 6, and will in turn impart the step-by-step movement to the mechanism. Thus, if the master clock is arranged to impart an impulse every twenty seconds, the ratchet-wheel 15 and its pawl 23 should be so timed as to move the minute hand the space of one minute on its dial for each three impulses, thereby indicating with absolute accuracy the time during which the machine to which the device is connected is being operated.

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

1. A device of the class described, comprising a ratchet wheel, a pawl for moving said wheel step-by-step, a stop-spring for preventing back movement of said ratchet wheel, gearing operated b said wheel to actuate a register, a cross ar journaled at its ends to rock on its longitudinal axis, and adapted when rocked thereon to disengage said pawl and stop-spring from said ratchet wheel, the pressure exerted upon said bar by said pawl and stop-spring when shifted to their disengaged positions being in the line of the axis of said bar, whereby the latter will remain in such position until posigively shifted, and a lever for operating said 2. A device of the class described, comprising a ratchet wheel, a pawl for moving said wheel step-by-step, a stop-spring for preventing back movement of sald ratchet wheel, gearing operated by said wheel to actuate a register, a cross ar journaled at its ends to rock on its longitudinal axis, a lever for rocking said cross bar, and means on said cross bar adapted, when said bar is rocked, to move said pawl, and stop-spring out of operative relation with respect to sai ratchet wheel, the pressure exerted upon said means by said pawl and stop-spring when shifted to their disengaged positions being in the line of the axis of said bar, whereby the latter will remain in such position until positively shifted.

- Signed at the city of New York and. State of lgew York this 18th day of March, A. D. 191

CLARENCE N. OAHUSAG.

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