US1031804A - Keyless clock. - Google Patents

Description

W. E. E. MILZ.

KBYLESS CLOCK. v APPLIUATION FILED JULY 1a, 1911.

Patented July 9, 1912.

2 SHEETS-SHEET l.

)lll ullvlil ull lll tiivblliliblfmslllll Mme/11 CDLUMBIA FLANQGRAPH CLL. wAsmNurON. D. c.

W. E. E. MILZ. KEYLESS CLOCK. APPLICATION FILED JULY 13, 1911. Y y 1,031,804. Patented July 9, 1912.

2 SHEETS-SHEET 2.

NETE@ STATEPTENT FFTCE.

VALTER E. E. VIILZ, OF NEW YORK, N. Y., ASSIGNOR TO PHINNEY-WALKER KEYLESS CLOCK CO., OF NEW YORK, N. Y., A CORPORATION OF MASSACHUSETTS.

KEYLESS CLOCK.-

T all wia-0m t may concern:

Be it known that l, lWALTER E. E. MILZ, a subject of the Emperor of Germany, residing at New York, in the county of New York and State of New York, have invented certain new and useful improvements in Keyless Clocks, of which the following is a specification.

This invention relates to keyless clocks, and is an improvement on or modification of the inventionshown and described in my raient No. 1,009,773.

The object of the present invention is to provide improved means for setting the hands of the clock by means of a rotatable inner casing and rim. As in the former case, this casing is provided at its inner end with an annular gear which is normally in mesh with a gear mounted on the arbor of the spring, so that when the casing is turned the spring is wound. The casing is also shiftable in and out to a limited extent, and when pulled out it is disengaged from the spring winding gear, and is engaged with another gear which is operatively connected to the hand-setting devices, for the purpose of setting the hands.

instead of the swinging arbor shown in my former application, l provide a relatively stationary arbor', with gearing between the same and the cannon pinion which turns the hands in the usual way, said gearing including a gear which is slidable on the arbor, and devices are provided to slide the gear to engage the setting gears when the casing is pulled out, preparatory to setting the hands, said gearing being disengaged when the easing is pushed in to its normal position.

ln the accompanying drawings-Figure 1 is a side elevation with the oasings in section. Fig. 2 is a section on the line 2 2 of Fig. 1. Fig. 3 is a section on the line 3--3 of Fig. 1. Fig. l is a section similar to Fig. 2, but with the gears engaged. Fig. 5 is a detail of the sliding gear operating device. Fig. G is a detail in section showing the clutch shifter.

Referring specifically to the drawings, G indicates an outer cup shaped casing which may be mounted o-n any suitable, base support and is relatively fixed. Fitting at a working fit within this casing is a cylindrical rotatable inner casing 7 which may be turned in the outer casing and pulled in or out to Specication of Letters Patent.

Application filed July 13, 1911.

Patented July 9, 1912.

Serial No. 638,343.

a limited extent therein by means of a rim 8 fastened to the front end of the casing, which rim has a lap joint with the front edge of the outer casing. The rim carries the glass and the usual reflector ring around the dial. At its inner or rear end the inner casing has an internal ring gear 9 fixed thereto. The back plate of the movement is indicated at 10, the middle plate at 11, and the front plate at 12, and the movement may be of any suitable or desired construction, and requires no detailed description. The movement is fastened to the back of the outer casing G by means of screws 13 which take into pillars 14 projecting from the back plate.

Fastened to the inside of the inner casing 7 are a pair of flat springs 50, having upper and lower notches 51, and these springs project so that opposite edges of the middle plate 11 of the casing will be engaged in the notches, the plate slipping from one notch to the other as the casing 7 is shifted in or out. The purpose of this is to hold the casing in the position to which it is shifted. When the case is pulled out the plate is engaged in the upper notch of each spring, and when it is pushed in it is engaged in the lower notch of each spring, the former being the setting position and the latter the normal or winding position.

I n its normal position, that is when the casing 7 is pressed in to full extent, the ring gear 9 engages a spur gear 1G mounted on the spring arbor 17 which is connected to the spring in the barrel 1S in the usual manner, the spring barrel being geared to the clock movement as usual. When the inner casing 7 turned in the proper direction the gear 16 and arbor 17 will be turned, and the spring wound. Back slip is prevented by a detent 19 pivoted to the back plate 10 and engaging the gear 1G.

The gear 16 has on the front side thereof a circular hub or extension 2O on which an annular spur gear or blind wheel 21 is free to turn. This wheel isthe same diameter as the gear 16, and by grasping the rim 8 the inner casing 7 niay be pulled out far enough to shift the annular gear 9 from engagement with the gear 16 to engagement with the gear 21. The spur gear 21 meshes with a pinion on the inner end of an arbor 25 which extends through the plates of the movement, and has at its frontl end a pinion QG loose thereon. The hub of this pinion extends through a hole in the front plate, and at its front end, outside of or above the plate, it has spur teeth. At its inner' end, below the plate, it has crown teeth 2G, forming one member of a clutch. The front end of the arbor 25 is squared below said pinion, as at 27, and on said squared part has a sliding clutch member Q9 which has teeth enn gageable with the teeth 26 to transmit the rotation of the shaft to the loose pinion 2G. The pinion 26 is geared by a wheel 30a to the center pinion 3() fastened to the cannon 'pinion which turns with the minute hand Vand geared to the hour hand in the usual vay, and when the clutch 29 is engaged and the arbor 25 is turned the hands will be set to desired position.

The invention is not limited to the exact embodiment shown, but various modifications are possible within the scope thereof.

vWhen the inner casing 7 is pulled forwardly lto the extent necessary to engage its ring gear S) with the gear Q1, and then turned, the motion is communicated through the gear 2l, pinion Qel, arbor 25, clutch 29, and gears 2G, 30a and 30 to the hands, and when the casii g is so pulled out, its gear 9 is disengaged from the spring gear 16. The

clutch member 29 is carried by a shifter 35 which consists of a bent piece of metalV having an inwardly projecting part at the end of which is an ordinary fork straddling the arbor under the member 29, and an outwardly and forwardly extending part which works through a notch at (30 in the dial plate of the movement. rllhis shifter is fastened by a collar 86 andset screw to a sliding pin 3T which works through guide holes in the front and middle plates of the movement. A spring 3S confined between the collar 3G and the middle plate ll tends to press the shifter upwardly and outwardly and thereby engage the clutch members 29 and Q6, rlhe outer end of the shifter 35 has a sliding Contact with the rim 8 as shown in Fig. 6, so that it does not obstruct the turning of said rim, but merely acts to disengage the clutch when the inner casing and the rim 8 are pushed in. Then the inner casing is pulled out as above described the spring 38 lifts the shifter and so engages the clutch, and consequently the rotation of the arbor 25 is connnunicated to the hands. When the casing is pushed in the spring 38 is conipressed and the shifter disengages the clutch, permitting` the usual winding operation to be effected, the arbor 25 in this instance rotating idly. wWhen the hand setting is engaged the band may be set by turning the rim in either direction.

Ha ving thus described my invention,what l claim as new and desire to secure by Letters Patent isu l. ln hand-setting devices for a clock, the combination of a rotatable ring on the clock casing and shiftable with respect thereto, gearing between the rings and the hands of the clock` and operating to set the hands by turning the ring, said gearing including an arbor and a gear wheel loosely mounted on the arbor, a clutch one member of which is connected to sait gear wheel and the other member of which is sliiftable on the arbor, a shifter connected to the movable clutch niembeI and projecting to contact with the ring, whereby the clutch will be opened when the ring shifted in one direction, and a spring a e o against the shifter and tending to close the clutch when the ring is shifted in the other (lirection.

Q. ln a clock, the combination of spring winding gearing, hand setting gearing, a casing rotatable around the clock nioven'icnt and shiftable to engagement with either of said gear-ings to operate the same respectively, and means to hold the casing in either position to which it is shifted, con'iln'ising a spring attached to the casing and engaging a fixed wart on the movement.

3. lin hand-setting devices for a clock, the combination of a ring rotatable around the clock movement, and shiftable with respect to said movement, gearing between the ring and the hands and operating to set the hands by turning the ring, said gearing including an arbor, a clutch mounted on the arbor, a gear wheel attached to one of the clutch members and carried on the arbor and forming part of said gearing., a slidable shifting device bearing against the ring and opeatively connected to the movable clutch member and acting to shift lthe same to open the V:lutch when the ring is shifted one way, and a spring bearing against the said device and tending to close the clutch.

ln testimony whereof, l al'liX my signature 'in lnesence of two witnesses.

VALTER F. l. MILZ. llfitnesses Witn'rnn L. BUNNELL 7 Fnnnnnien PnINNnY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. A

Images