US1715521A - Timepiece - Google Patents

Description

June 4, 1929. M ERS 1,715,521

TIMEPIECE Filed N01 6, 1926- 2 Sheets-Sheet l I 1 lll llllllnmw June 4, 192 9. g SUMMERS 1,715,521

TIMEPIECE Filed Nov. 6, 1926 2 Sheets-Sheet 2 gmxmtoa Q 7 5 crime-0g Patented June 4, 1929.

UNITED STATES GEORGE T. SUMMERS, OF FREDERIC, WISCONSIN.

TIMEPIECE.

Application filed November 6, 1926. Serial No. 146,745.

This invention relates to timepieces and an important object of the invention is to provide a timepiece which when wound will run for a long period, possibly four hundred days.

Briefly stated, an important object of the invention is to provide novel means whereby an ordinary watch movement assembly may be detaohably combined with clock spring motor to produce a clock which will run for a long period of time without winding,- the clock spring motor serving to progressive- 1y wind the main spring of the watch movement.

further obj ect is to provide a timepiece of the character specified which is of highly simplified construction, durable in use and which may be carried out in connection with many of the parts found in a timepiece of conventional design.

A still further object of the invention is to furnish a clock involving a watch movement assembly and a spring motor winding means for the watch movement main spring,

wherein the watch movement assembly may be readily removed as a unitfor inspection or repair.

The invention also contemplates a novel 1 mode of application of clock hands to the 39 watch movement assembly and further a counterbalance means for said hands.

Other objects and advantages will be apparent during the course of the following description. v

In the accompanying drawing forming a partof this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a perspective view of the mechanism casing of a clock constructed in accordance with my invention;

Figure 2 is a rear elevation of the mechanism, the back of the mechanism casing having been removed;

Figure 3 is a side elevation of the same;

Figure 4 is a fragmentary elevation of the motion transmitting mechanism embodied in the timepiece as seen when the front cover plate is removed, and

Figure 5 is a group perspective view showing a fragment of the front casing plate, the watch movement and clock hands in disassembled relationship.

Fig. 6 is a sectional View showing the mounting of the watch movement in the frame.

Fig. 7 is a partial front elevation of the mechanism.

In the drawing, the numerals 5 designate a pair of plates connected by stay bolts 6 upon which sleeves 7 for spacing the plates are mounted.

In carrying out the invention I employ two springs 9 and 10 and provide means in the nature of stems 11 and 12 for carrying the springs between the plates 5 and by which the springs may be separately wound with the aid of a key or the like.

The stems 11 and 12 also have keyed or otherwise fastened thereon,gears 14 and 15, respectively, the peripheral teeth'of which mesh with the teeth of an adjacent gear 18 formed in the hub of a gear 19.

Figure 1 illustrates that the peripheral teeth of the gear 19 have constant mesh with a second hub gear 24, integral with a gear 26 and mounted on a transverse shaft 25. Figure 2 clearly illustrates that the teeth of gear 26 extend slightly inwardly between the spaced mechanism plates 27 of the watch movement assembly to mesh with the teeth of the main spring barrel 28 of the watch movement.

As best illustrated in Figures 2 and 4, the main springs 9 and 10 are engaged at their outer ends with adjacent stay bolt sleeves 7. The inner ends of the springs are respective ly, connected fixedly with the stems 11 and 12 as usual. Keyed to each stem is a ratchet wheel. The ratchet wheel of the stem 11 is denoted at 11" and that of the stem 12 by reference character 12. Pawls 30 and 31 on the sides of gears 14 and 15, respectively engage the ratchet wheels to thereby establish a driving connection between the spring driven stems 11 and 12 and the gears 14 and 15.

From the foregoing description it will be clear that the spring driven gears 14 and 15 combine to drive the gear train 18, 19, 24 and 26 whereby to actuate the watch movement main spring barrel 28 to keep the main spring properly wound for a long period of time.

As best shown in Figures 1 and 5 the front plate 27 of the watch movement assembly has a marginal circumferential flange 32 the lat erally turned portion of which is adapted to engage the outer face of the front clock assembly plate 5 just outwardly of the circular recess 5 therein, into which the watch movement assembly is adapted to be inserted. Screws 33 serve to detachably hold the watch movement assem ly in place in the opening 5*. I prefer to notch the flange 32 as at 32 so that the heads of screws 33 will lie flush with the edge of said flange and also prevent rotation of the watch movement structure in the opening 5*. 'As suggested in Figures 5 and 6, there is sufiicient space between the plates 27 of the watch movement assembly to tended ends of said hands.

pin 39 hold the hands from sliding off their mounted. Each of the hands 36 and 37 has a counterbalanced end 36* and 37 respectively so as to overcome the weight of the ex- A washer 38 and respective mounts.

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

In a timepiece, a casing having spaced walls and a spring motormounted therebetween, one of said walls being provided with an aperture, a gear train connected with said spring motor and having a spur gear at its uppermost point which extends above the lower surface of the aperture in said wall, a watch movement having a motor and a spur gear slidably disposed within said aperture, whereby said spur gear on said gear train will positively mesh with said spur gear in the watch movement and'be connected with said spring motor to efleet the automatic winding of the motor in said watch movement, said watch movement being removable and having a portion projecting into said aperture, said overlapping portion being cut away at intervals sufficiently to accommodate screws.

In testimony whereof I afiix my signature GEORGE T. SUMMERS.

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