US931157A - Electric self-winding clock. - Google Patents

Description

J.. STEIGBR M. BESAN'oN.

\ ELEUTRIU SELF WINDING CLOCK.l

APPLIOATIoN FILED rms. 11, 1901, Y I .y

' PatentedAug. 117', 1909.

J. STEIGER & J'. BBsANgoM ELETRICSBLP WINDING CLOCK. ArPpIpATIoN FILED nn.-11,1`907. l 931,157.1 Patented Aug. 17, 1909.

.motor not being shown.

JACOB STEIGER'AND JMES eEsaNoN, or LA cHAUX-nE-Fonns, SWITZERLAND.

. ELECTRIC SELF-WINDING CLOCK.

Specification of Letters Patent.

Patented Aug. 17, 19o9'.`

Application inea February 11, 1907. serial No. staart.

To all whomit 'may concern:

Be it known thatl we, J Aeon STEiGER and JMES Besancon, citizens of Switzerlani'l,

residingat La Chaux-dc-Fonds, Canton of Neuchtel, Switzerland, have 'invented new and useful Improvements in Electric Self- Winding Clocks, of which the following is a specification.

The annexed drawing given by way of example shows an embodimentJ of the invention.

Figure 1 is a front elevation. Fig. 2 is a part' section, following the line A-B ofFi 1. Fig. 3 is a sectionfollowing the line G- of Fig. 1.. Fig. 3a is a section on line E-F of- Fig. 3. Fig. 4is a rear elevation, the electric Figs. 5, 6 and 7 show in elevation the commute-tor in three different positions. Fig.`8 is a plan of the above mentioned interrupting commutator. The driving weight av is suspended by the *cord l) which is wound around the dium c secured' on the arbor d. In order to wind the clock, this drum is actuated by a wheel c by means of a clickf pivoted on the wheel e and constantly tending, under the action of a spring q to enter a notch h in the end wall 'i of the drum c. (')n the other hand, this drum carries lixcd against its opposite end. wall 7c, a .ratchet wheel l, which engages,

`when the weight e descends with a click 'm' carried by a second ratchctwheel nwliicliis loose on the arbor d. A safety' click o car ried by a plate of the movement engages the A spring p acts on` teeth of the ratchet fn. the click fm.;

Against theratchct n is placed a wheel q loose on thc arbor (l: when the weight e de sconds this wliecl`is constrained to inovc hy tho ratchet n by means of a spring 1*, one end of .which is secured to the ratchet by a screw s, while its other end acts Vagainst an arm t ofy the wliccl q. lliis wheel actuates the clock movement, which comprises an escapement-` wheel u the pinion u oll which is actuated by the said Wheel q through the intermediary of pinions and wheels ai, y, z and 1. TheseI trains are pivoted in two plates 2 and`3.

The` other members of the clockwork movement such as the Amotion work, hands,

dial etc. are not sliownin the/drawing.

The wheel e is actuated by a pinion 4 iixed on the shaft 5 voi a small clectric'motor 6 through the intormodiaryof pinions and ,wheels,7, S, 9, 1l), 11 and 12, the various spindles of which are pivotcd in two bridges 13 and 14, secured'respectively against theplate's 2 and 3.

The brushes 15 and 16 in contact with the comm'utator 17 of the niotor 6, are connected by the conductors 18 and 19 to the, contact pieces 20 and 21, 22 and 23, carried by two fixed pieces 24 and 25 of insulated material: the piece l24 carries the two contacts 20 and 21 insulated "and placed side by side, while` the piece 25 carries the two contacts 22 and 23, similarly insulated and placed side by side.

The conductors 26 and 27 connecting the lower contacts 20 and 21 with the upper contacts .22 and 23, are crossed, as shown diagraminatically in the right hand side of- Fig..

8, that is to say, the conductor 26 leading. from the lower left hand contact 20 is con: nected to the upper iight hand Contact 23 while the lower right hand contact 21 is connected to the upper contact 22 at the` left. l

The pieces 24 and 25 are, carried by a platef-ff if 2,8 securedagainst the plate 3,

A fork 29 carries a piece 30.0f insulating.. material, on which are fixed, insulated vfrom each other, two. metal blades 31 and 32. The'fork 29. is at one end pivoted in a bridge, late3, and at the other 33 screwed on the end, loose on the en 34 of the arbor 35 carrying two arms 36 and 37.

A helical spring 38 1s secured, on one hand,

to the plate 3 and on the other hand, to a bar 39 which is secured to the fork29, thisibar traverses the plate 2S, through an elongatedopening 40 in this plate, and is engagedin a slide 4 l's0lid with the arbor 35. by."

The position of the spring 38 relativeto the fork is such that it tends always to maintain the blades 31 and 32 incontact either vwith the upper contacts 22 and 23 or with the lower contacts 20 and 21 accordingas the fork receives from the bar 39 and the slide 41 a certain impulse upwardly or downi wardly. p

The blade 31 is connected by a flexible conductor 42 to the negativev pole of the source of electricity 45, while the blade TS2-isA connected by a flexible conductor 44 to the` Thus, Whenithe ositive pole of this source.

Ylades 31, 32 are not in contact with any of the contacts 20 to 23, no current reachestlie I niotor and this is stopped. Inversely, if

these blades are in Contact with the lower` contacts 20 aiid.21 the current fromr 43 will' and if these blades are in ,contact with the cause the 'motor 6 to rotate in one direction, 4

' the'wheel g, in a beak 53.

` ofthe a plication of a key for win requin;

` position shown in Figs. 1 and 4, no current 45.' passing to t e motor.

.cre

' and which terminates toward the bottom at secured an arm 54, to the upper part of which is secured a helical spring '55 which is itself 4 through 'a suiiic'ientlangle in one direction or I arbor 35 is produced by the pins 57 and 58 'clockworkz this movement, in the example* shown, gives to the Wheelvqone` revolution upper contacts 22 and 23 the motor will rotate in the opposite direction.

Ls" On the plate 28, above the opening 40, is ivoted at a dog 46 whichtends to 'rest reely suspended by itsownweight (Fig. 7)

one side' in a beak or nose 47 and at the other in a heel 48 against which may abut a finger 49 secured to an arm 50: this arm is pivoted at 51 on the plate 28, and tends to rest by its y own weight on a stop 52 and terminates, near At the lend of the arbor'35 opposite 34 is secured at 56 to the late 2 in such manner that the-axis is slight y inclined to the right. The vslide 41 rests on the beak47 -ofthe dog 46 (Fig. 1): when the arbor oscillates the other, it is powerfully pulled by this spring in the direction corresponding' to the oscillation ofthe said arbor andthus may occupy either the osition 541v or the posltion .54. This osc letorymovement of the fixed one on each side of the wheel e onthe same diametrical-` line -of thisl wheel. The arm is actuated by two ins 59 and 60 se cured on the same side oit le wheel q and on the same diametrical lineQof this wheel.

The shaft d ofthe druihc is provided with an extension 61 of square section irmitting'.

ing, when the weight a,`for example at the time o rst starting of themovement-ofthe in -16 hours.

Thef weight@ being 'once Wound upn as startin by reason ofv the wheel qjthe members o the winding up device' occupy the The whee g during the working of the clockwork movement, rotates in the direction of the arrow 62 (Figs. 1 Aand 5) and'in the course of the eighth hour of Working tlie pin lifts the-'arm 50'by its beak 53: the inger/49 of this arm then abuts against the heel `48 q the dog 46-and causes the same to osgo cillatethe beak 47 of which ceases to support the slide 41, vwhich rests-at 63 o n the-'arm 50` (Fig. 5 At-the moment when the piri 60 ceases to support vthe arm 50, this falls quickly on its stop 52, (Fig. I6) ceaslng to sup ort the slide 41, which moves the br'39,\ oscl iating the fork 29 and the arbor 35,", .which immediatelylr puts the blades 31 and 32 in cqn'tact witht e contacts 20 and 21, the a'nr"4occupying the position 541` (Fig. 1). Immediately the current from the source-43 antuates the motor 6 which beginsto rotate actuating the drum c in the directionpf the declare as new and wish to secure1by Letters arrow 65 (Fig. 6) until the moment when the pin -57 acts on the arm 36 of the arbor 35.

-During the winding period thecontinuation of the working ofA the clockwork movement l is insured by 'the driving spring 1' (Fi s..1, 3 and 3) which has been` tensloned by the action of the weight a.

When the pin 57 comes into the Kposition in Fig. 7 the oscillatory movement produced on the arbor 35 is suiicient to cause the arm 54 to be quickly drawn back by its spring 55 and to occupy the position 542: during -this rapid 4movement the lower art of the slide 211 operates on the bar 39 an produces theimmediate contact of the blades 31 and 32 with the upper contacts 22 and 23 (Fig. 7) sending i -to the motor 6 the current from 43 in the op-l The mo'- posite-directicn to the' precedin y tor then rotates the wheel e in t e direction of the-arrow 66 (Fig. 7): the wei ht a recommences tol actuate the clockwor movement as soon as the click f is disenga ed from the notch h of the drum. During t is rearward movement of the wheel l, the pin 58 describes a half vrevolution withl this wheel' until the' moment when, supporting the arm 37, this pin causes the arbor 35 to oscillate,

causing the 'return of the arm 54 and the fork 29 .to

their first position (Figs. 1 and 4) corresponding to the interruption ofthe current. The

clockwork movement operates thus"under the action of the drivin period o f eight hoursy weight aduring'a y "the epiration of the drum 'c whi e-the meets the beak 53 of t 131759Offthe wh/eel gl carin ,50 and brings v about' the same operations.fas'ly abovef-de-` v scribed,ycausing the rewinding' of the'oriving4 y wei ht a by a semi-rotation of the drum c.` aving now' described our .1nvention` we Patent.

1. A lclock including an electric motor-for automatically windin the same, a Winding the driven' Wheel g forestablishing a. circuit Wheel e, a drlven whee g, means actuated by through themotor and causing the forward movement of the winding wheel, and/means controlledbjr the winding wheel for reversing the circuit and the direction of rotation .of the motor at the end of a Winding operation, the

winding drum of the clock havin a Anotch h, and the'winding wheel having a c ck f adapted to engage sald notch-in order to transmit a windin movement to the drum.'

` 2. A c ookI including an electric motor forautomatically winding thesame, a winding wheel e, a driven wheel g, acontact device adapted when moved to one iposition to direction, a spring tending to throw sai contact device 1n one or the other extreme posi-l tion, a' dog 46 `for holding it in an interme- 9s1,15-7 v Si diate position in which the cireuit is broken, names te this speeiation in the presence of an arm 50 adapted to withdraw said dog 46 two subscribing Witnesses.

and to be operated by said driven Wheel to JACOB STEIGER.A r

release said Contact device, and an arm 36 JAMES BESANCON. 5 connected to said Contact device and adapted Witnesses: v f

to be Vactuated by the winding Wheel e. C. DUBOIS,

Imtestimony whereof We'have signed our I T. RICHARD.

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