US904332A - Winding-indicator. - Google Patents

Description

. s. KAHAN. v WINDING INDICATOR. APPLIGATIOE FILED APR. 9, 1908.

9CPI;,3S,2-a Patented Nov. 17, 1908 To all whom it may conccv SAliUlEL lililtllrbl, Ol NE YORK, K. Y.

No. see-sea.

main spring is employed.

The invention is especially adapted to that type of instrument in which one end or" the main spring is connected to thegoing barrel, and the opposite end tl ereot is connected to the. central arbor, the barrel and arbor being rotatable in the same direction and one rotating only during the winding of the spring and the other rotating during the unwinding ofthe spring or running of the instrument.

My invention includes the operating mechanism for moving an indicating hand, said mechanism inchiding a member movable longitudinally and also rotatable, the movements of the member being dependent upon the movements of both the arbor and the barrel.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures, and in Which Figure 1 is a front view of a .watch having a winding indicating hand; 2 is a front view or a portion of such a watch. the dial and some of the wheels being removed; Fig. 3 is a transverse section on the line 3 3 Fig. 2; and Fig. l is a view similar to Fig. 3, but showing a slightly modified form.

My improved winding indicator ed to be applied to any cl;.-. 4 other instrument of the *liktl. but particularly to that i rates known as a going barrel "x to, that is. one in which the barrel and arbor are connected to opposite ends of the main spring and rotate in the same direction.

In Figs. 2 and 3, I have illustrated 2. tion or" a watch having what is known hanging-b rrel, that is one which is ported entirely from one of the two plates of the frame. as shown. The Winding arbor l l I l l l l l ifi'oeeification of Letters Eatent.

i. filed lipril i), i908.

Patented Nov. 17, 1908.

Serial lie. 4:26.025.

extends through the'bacl: plate 11 of the watch. and is provided with a collar 12 engaging with one side of said plate. and the winding ratchet 1S engaging with the opposite side of the plate, so as'to support the arbor and avoid the necessity of securing the opposite end or the arbor to the front plate let of the watch. 10, is the barrel 15, serving to inclosc the main spring 16.

secured to the arbor, and the opposite end is secured to the barrel, as is customary in ratches of this type. The dial 17 of the watch is spaced a short distance from the front plate 1 1. and in this space there is mounted a pinion 18, the arbor of which tends through the dial and carries a winding indicating hand 19. Also mounted between the front plate l t-and the dial are a lever 20 and a spring 21. The lever is mounted upon a pivot 22 and one end of the lever is provided with a curved rack in operative engagement with the pinion 19; The spring 21 of any suitable type and serves merely to take up back lash in the eugagement ot' the rack bar with the pinion. and to tend to rotate the pinion in one direction.

The main feature of my invention is the means employed for operating the lever. This means includes a momher mounted coaxially with the arbor and rotatable in respect to the arbor and movable longitudinally in respect to the arbor and barrel. This member, as shown in Figs. 2 and 3, includes a circular plate Bi and a threaded stem 25. fitting into a threaded socket in the arbor. The barrel carries a pin 26 parallel to the arbor and stem and extending through an aperture in the plate. 2%. The lever 20 terminates in a downwardly-extending arm 27. having a cam surface in the path of the plate Q l during its longitudinal 'ie-.=-uuent. During the winding of the the arbor 10 is rotated by the gear wheel 13. while thebarrcl remains substantially stationary. The barrel prevents the plate 2 from rotating and the rotation of the arbor draws the plate 2 dow-irward to a position adjacent the barrel, due to the threaded engagement of the stem and arbor.

The engagement of the plate with the cam surface of the lever 20 swings the latter on its pivot and rotates the pinion 18 and the swingin indicating hand 19 carried by said pinion. As the main spring unwinds, that Gne end (it the spring Mounted upon the arbor 1 tion during the running. The entire mechthe winding.

is, when the watch is running, the arbor remains stationary, but the barrel rotates in the same direction as the arbor during This rotation of the barrel causes the plate 24 to be'rotated by reason of the engagement of'the pin 26, and this rotation of the plate 2st while the arbor remains stationary, moves the plate longitudinally and permits the lever to move in the reverse direction under'the action of the spring 21. Thus, the indicating hand 19 is operated in one direction during the wind ing of the watch, and in the reverse direcanism for rotating the pinion of said hand comprises only three essential elements, namely; the member including the plate 24, the lever. including the arm 27, and the spring 21.- These elements may be varied arbor.

widely without departing from the scope of my invention.

In case the indicating mechanism is used on a stationary instrument, gravity may be relied upon to move the lever 20 in one direction, and thus the spring 21 may be omitted. In case it is desired to support the winding arbor at both ends, I may modify the construction as shown in F igfat. In this case, the arbor 10 is provided with a reduced threaded extension 25 having bearing in the front plate 14 of the instrument. The plate 2% is threaded to this reduced extension of the arbor, and is rotated with the barrel 15 by the pin 26*, The operation of the plate upon the lever 20 and its cam surfaced arm 27, is identically the same whether the plate be threaded to a stem extension of the arbor, or whether it be provided with a stem having threaded engagement with the In either case, the plate is rotated during the running of the watch, and is also moved longitudinally in one direction, while during the winding of the watch it is moved longitudinally in the reverse direction.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent:

' 1. In combination with a main spring and a barrel and an arbor rotatable in the samedirection and connected to opposite ends of said spring, of a winding indicator including an oscillatory hand, an operating memher having threaded connection with the arbor and movable in one direction during the rotation of the arbor and movable longitudinally in the, opposite direction during the rotation of the barrel, and connections between said member and said oscillatory hand.

2. In combination with a main spring, and

abarrel and an arbor connected to opposite ends of said spring and rotatable in the same direction, one during the unwinding and the other during the winding of the spring, of a Winding indicator, and operating means therefor, including a lever and a member for swinging said lever, said member being rotatable and movable longitudispring, of an indicating hand, a pinion for oscillating said hand, a lever having a segment in engagement with said pinion, an arm carried by said lever and presenting a cam surface, and a plate carried by said arbor and rotatable and longitudinally movable in respect thereto and having engagement with said cam surface.

4. In combination with a main spring and a barreland an arbor connected to opposite ends of said spring, of a winding indicator including an indicating hand, an operating member having a disk portion and a threaded stem concentric with said arbor and extending into the same at one end, means for holding said disk against rotation in respect to the barrel, and connections between said disk and said indicating hand.

5. In a going-barrel watch, the combination of a main spring, an arbor having a threaded bore, a barrel, and a winding indicator including a member having a threaded stem extending into the threaded bore of the arbonand means for holding said member against rotation in respect to the barrel.

6. In combination, an arbor having a threaded bore, a member having a threaded stem extending into said bore, a hand, a pinion for moving said hand, and a lever operatively connected to said pinion and said member. v

7. In combination, an oscillatory hand, a pinion connected thereto, a lever terminating in a segment in engagement with said p'inion, and an operating member movable in opposite directions and having engagement with said lever for oscillating, the same.

In testimony whereof I have signed 1 3' name to this specification in the presence of two subscribing witnesses.

' SAMUEL Kl HAN.

Witnesses CLAIR W. Fiuanaxn. JOHN P. DAVIS.

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