US424185A - Lewis donne and morgan donne - Google Patents

Description

W q d 0 M 0 w 1 Patented Mar. 25, 1890.

INVENTOR:

WITNESSES:

A TTOHNEYS,

N4 PETERS, ma-um n tm. WM 0. C

UNITED STATES PATENT OFFICE.

OF LONDON, COUNTY OF MIDDLESEX,

ENGLAND.

WATCH-WINDING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 424,185, dated March 25, 1890.

Serial No. 303A90. (N model.)

To all whom it may concern:

Be it known that we, LEWIS DONNE and MORGAN DONNE, of London, in the county of Middlesex, England, have invented new and useful Improvements in Motive Power for IVatches and Clocks, of which the following is a full, clear, and exact description.

The object of the invention is to provided a new and improved motive power for watches and clocks which is very simple and durable in construction, effective in operatiomand permits the use of a long and broadmainspring, the winding up and unwinding of which are recorded.

The invention consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a face View of the improvement. Fig. 2 is a sectional elevation of the same on the line 0c 00 of Fi 1. Fig. 3 is a sectional plan view of the same 011 the line y y of Fig. 2. Fig. 4 is aside elevation of the spindle.

The improved motive-power mechanism A is arranged on the top plate B and the pillarplate 0, located a suitable distance apart and connected with each other by posts D or other means. In the top plate B is mounted to turn in a suitable bearing one end of the arbor E, on which is secured the main driving gear-wheel F, provided on one face with a recess for the reception of the mainspring G, which latter is secured at one end to the hub of the said gear-wheel F. The other outer end of the mainspring G is fastened to the inside of the rim of the barrel II, preferably made of steel and held loosely on the offset E of the arbor E. The barrel thus forms the other bearing for the arbor E.

The open end of the barrel II is opposite the recess of the main driving-wheel F, so that the spring G extends partly in the barrel and partly in the recess of the said wneel F, which permits of making the said mamsprin g quite wide without increasing the thickness of the watch or clock.

0n the closed end of the barrel II is formed a central boss or hub II, fitting into a corre sponding aperture in the pillar-plate O, and on the said boss II is formed a second concentric boss H fitting into a central aperture I, formed in the ratchet-wheelI, and is secured upon the barrel by set-screws J The ratchetwheel I is prevented from turning in the wrong direction by a spring-pressed pawl I pivoted on the pillar-plate and shown in Fig. 1.

On the ratchet-wheel I is arranged the Ge neva stop in the following manner: The square end E of the arbor E projects into the aperture I and carries a disk J provided with a stop-finger J, adapted to engage the star-wheel K, mounted to turn on a set-screw K screwing in the ratchet-wheel I. The star-wheel K is set in a recess I formed in the face of the ratchet-wheel I and opening at one side into the central aperture I of the said ratchet-wheel, as plainly shown in Fig. 1. The starwwheel K is provided with a number of teeth K having their outer ends concaved to conform to the periphery of the disk J, one of the said teeth K engaging the disk at a time. The wheel K is also provided with a convex tooth K adapted to butt with its periphery against the periphery of the disk- .I and serving to prevent a further winding up or unwinding of the mainspring G.

By the arrangement above described the barrel H remains stationary, except when the mainspring is wound up. lVhen the ratchetwheel I is turned, the barrel H turns with it, and the mainspring is wound up around the hub of the main driving-wheel F.

The star-wheel K is carried along by the ratchet-wheel I, and is turned the distance between two teeth whenever a tooth K engages the finger J until the tooth K comes in con tact with the periphery of the disk .I, and a further winding of the mainspring is prevented. The unwinding of the mainspring then revolves the main driving-wheel F, connected in the usual manner with the respective parts of the watch or clock.

The main driving gear-wheel F meshes into a gear-wheel L, having a hollow hub L mounted to turn in the top plate B. Through the hollow hub passes loosely one end of a spindle N, provided with an offset N, extending at right angles to the axis of the IOO A spindle N. On this offset N is mounted to turn a beveled gear-wheel O, meshing on one side into a beveled gear-wheel L formed on the face of the gear-wheel L, and on its other side the said beveled gear-wheel O meshes into a beveled gear-wheel P, formed on the face of a spur-wheel P, mounted to turn loosely on the spindle N opposite the gearwheel L.

The spur-wheel P is in mesh with the intermediate gear-wheel Q, mounted to turn 011 the pillar-plate O, and in mesh with the ratchet-wheel I. The hub of the spur-wheel P is mounted to turn in a bracket It, secured to the pillar-plate C. The latter is provided with a suitable recess for the passage of the spindle N and the wheels P, P, and 0. On the end of the spindle N is secured a pinion S, meshing into the geanwheel T, carrying the indicatinghand orpointer U. The ratchetwheel I is in mesh with the pinion V, meshing into the gear-wheel \V, turned by the stem-winding mechanism or other means.

It will be seen that if either of the wheels L or P is rotated while the other is held stationary the spindle N will rotate in the same direction as the wheel that is moved ,but only through half the angular distance. This is owing to the fact that, althoughv the teeth of the beveled gear-wheel 0. move at the same rate of speed as the turned wheels L or P, those on the opposite side in mesh with the stationary wheel P or L cause it to move backward. Consequently the spindle N, on

moves only half as far as the wheel P or L.

Now when the operator winds up the watch or clock the Wheel WV rotates the pinion V, and the latter turns the ratchet-wheel I in Geneva stop star-wheel K is turned by the pin J of the now stationary disk J the distance of one tooth K at every revolution of the ratchet-wheel I. WVhen the latter has made four revolutions, the tooth K stops fur ther motion of the ratchet-wheel I and the winding mechanism. hen the ratchet-wheel Iis thus turned, it turns the barrel II, and the spring G is Wound. turns at the same time with the wheel Q,which rotates the spur-wheel P, carrying the beveled gear-wheel P, meshing into the beveled gearwheel 0, turningon the spindle N. The gearwheel 0 is thus caused to roll ed on the now stationary gear-wheel L whereby the spindle N is turned, and the pinion S, fastened on the said spindle N, turns the gear-wheel T,whereby the hand or pointer U is turned in the direction of the arrow 1), making nearly a full revolution. IVhen the winding up ceases, the spring G in unwinding turns the main driving gear-wheel F, connected in the usual manner with the other parts of the watch or clock. The driving-wheel F also turns in the direction of the arrow a and turns the gearwheel L,carryin g the beveled gear=wheel L in mesh with the beveled gear-wheel O, turning .a reliable upand-down motion.

i fore do not claim such a combination, broadly; i but which the beveled gear-wheel O is mounted,

The ratchet-wheel I also on the spindle N. As the beveled gear-wheel P on the spur-wheel P is now stationary, the said gear-wheel 0 rolls oif on the said wheel P, whereby the spindle N is turned in an opposite direction from the one described above in reference to winding up the watch or clock. The spindleN byits wheels turns the gear-wheel '1 in the inverse direction of the arrow Z), whereby the hand or pointer U turns in the same direction that is, back to its starting-point, on which it arrives when the spring is unwound-that is to say, when the spindle E and wheel F are locked in place by the Geneva stop.

It is understood that when the wheel F and its spindle have made four revolutions the pin J on the disk J, secured on the said spindle E, has moved the star-wheel K the four teeth K until the next tooth I stops further motion.

The up-and-down motion, as above de scribed, is also applicable to the ordinary going-barrel system of Watch or clock movements.

\Ve are aware that the up-and-down motion has been previously applied to watches and clocks, and more especially to the f usee-movements, in which the motive power is transmitted to the train of wheels through the fusee; but in what is known as the goingbar rel system of motive power there has not been \Ve therelVhat we do claim as our invention, and desire to secure by Letters Patent, is-

1. The co1nb1nation,in a watch or clock, with 1 the top plate B, having ab'earing, and the pillar-plate 0, connected therewith and provided the direction of the arrow a, whereby the with a circular opening opposite said bearing, of the arbor E, journaled at one end of said bearing, the recessed main driving-wheel on said arbor, the barrel H, having an apertured boss H j ournaled in said circular opening, and

I in which the other end of the arbor E is journaled, and the mainspring within the said driving-wheel and barrel, substantially as set forth.

2. The combination, in a watch or clock, with the top plate B, having a bearing, and the pil lar-plate 0, having a circular opening, of the mam driving-wheel recessed on its inner face I and provided with a hub, the barrel II, having a boss II journaled in the said circular opening, the mainspring secured at its inner end to the hub of the main driving-wheel and at its outer end to the drum, and the arbor E, passed through said hub and j ournaled in the boss H and in the bearing in plate B, substantially as set forth.

3. In awatch or clock, the combination, with a main driving-wheel recessed on one face, of a barrel mounted to turn in the pillar-plate, a mainspring extending partly into the said recess of the main driving-wheel and into the said barrel, a ratchet-wheel secured on the said barrel and connected. with the winding mechanism, and a Geneva stop held on the said ratchet-wheel and the spindle of the main driving-wheel, substantiallyas shown and described.

L P, loosely mounted on the said spindle at opposite sides of the oitset, carrying gearwheels L P, respectively, 011 their inner faces, the pinion L meshing into the main drivingwheel, the pinion O on said offset meshing into gears L P, pinion 0, connecting the ratchet-wheel and pinion P, the winding-gearing connected with ratohet-wheel I, the pinion'T, the pointer U carried thereby, and the pinion S on the spindle N and meshing with pinion T, substantially as set forth.

5. In awateh or clock, a main driving-wheel recessed on one face, a barrel mounted to turn in the pillar-plate, a mainspring extending partly into the said recess of the main drivingwheel and into the said barrel, and a ratchetwheel secured on the said barrel and connected with the winding mechanism, in com bination with a spindle, two beveled gearwheels held to turn looselyon the said spindle and adapted to be alternately turned by the said main driving-wheel and ratchet-wheel, and a third beveled gear-wheel mounted to turn on one side of the said spindle and in mesh with the said two beveled gear-wheels, substantially as shown and described.

6. In awatch or clock, a main driving-wheel recessed on one face, a barrel mounted to turn.

in the pillar-plate, a mainspring extending partly into the said recess of the main drivingwheel and into the said barrel, and a ratchetwheel secured on the said barrel and connected with the winding mechanism, in, combination with a spindle, two beveled gearwheels held to turn loosely on the said spindle and adapted to be alternately turned by the said main driving-wheel and ratchet-wheel, a third beveled gear-wheel mounted to turn on one side of the said spindle and in mesh with the said two beveled gear-wheels, and a Geneva stop held on the said main driving-wheel and the said ratchet-wheel, substantially as shown and described.

7. In a watch or clock, a main driving-wheel recessed on one face, a barrel mounted to turn in the pillanplate, a mainspring extending partly into the said recess of the main drivingwheel and into the said barrel, and a ratchetwheel secured 011 the said barrel and 0011- nected with the winding mechanism, in combination with a spindle, two beveled gearwheels held to turn loosely on the said spindle and adapted to be alternately turned by the said main driving-wheel and ratchetqvlieel, a third beveled gear-wheel mounted to turn 011 one side of the said spindle and in mesh with the said two beveled gear-wheels, a Geneva stop held on the said main driving-wheel and the said ratchet-wheel, and a hand or pointer actuated by the said spindle, substantially as shown and described.

LEIVIS DONNE. MORGAN DONNE. Witnesses:

CHARLES J MATHIAS, M. HEARN;

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