US967304A - Time-controlled mechanism. - Google Patents

Description

A-. w. BAILEY. TIME TROLLED MECHANISM. APPLIOATION FILED MAY 20, 1909.

967,304. Patented Aug. 16,1910.

I To allwhom it may concern:

. AL nnn'rwmroN BAILEY, or sPoKAnn, WASHINGTON.

TTME-CONTROL LEI MECHANISM.

Specification of Letters Batent. lPattentad Aug. 16, 1910.

' Application filed May 20, 1909. Serial No. 419?,241.

Be it known that. I, WHITON BAILEY, a citizen of the United States, residing at Spokane, in the county of Spokane and State of 'Washington, have invented a new and useful Time-Controlled Mechanism, of which the following is a specification.

This invention has reference to improvementsin timecontrolled mechanism and itsv designed to'cause the release of stored-up power'after a predetermined time interval so that such stored-up power shall in turn cause the operation of another mechanism to accomplish any desired result' In accordance with the present inventionpower is stored for the actuation-of the time controlling mechanism and such power is sufiiciently in excess of the power needed for'thetime mechanism so that at the ex piration {of the redeter mined time there I shall still .besu cient'power to cause'the actuation of thefmechanism designed to be operated'after the time interval has. elapsed;

The invention is designed morepa-rticularly for the actuation of an electric switch to complete or rupture an electric circuit as the case ma be or to cause the-starting I I or stopping .0 any desiredmechanism 01!? a clock trainlwhich may any character whatsoever wherein the pres-. ent invention may be applicable.

The invention will hey-best understood from a consideration of the followin detail description taken in connection wit the accompanying drawings forming a part of thisspecificatiomin which drawings,

Figure 1 is a partially diagrammatic'ele- 1 vation of an apparatus constructed in ac-.

cordance with the present. inventioinw'it-h parts broken away to disclose more remote parts. Fig. 2 is a side elevation of the struc-- ture shown in Fig. 1 with parts in section.

'ter has fast theretoat one end a ratchet 4 adjacent' to the wheel 3 and the latter carries a spring-actuated pawl .5 so that when the arbor 3 is turned in one direction the ratchet 4 will engage the pawl 5 and cause a rotative movement ofthe wheel 2, and

when the arbor 3 is rotated in the opposite direction the ratchet i will ride'idly under quiescent.

The arbor 3 has fast. thereto a pinion 6 'which in turn is normally in mesh with a gear wheel 7 having a space 8 onits periphery free-from gear teeth sov that the gear wheel 7 is in e ect a mutilated gear; The

' the. pawl 5 and the wheel 2 willreinain' 7 gear wheel 7 is. mounted on an arbor 9 car- 1 ried by a yoke 10 which latter is ivo'ted at I the free end of its legs to a suita le casing 11 carrying the clock train 1. The yoke 10 is under. the normal control of a spring 12 telndipmat all times to maintain the'gear ,w as

in mesh withzthe' pinion 6, and a stop pin 13 limits the movement of the yoke .1O,under. the action or the spring .12.

East to the arbor 9 is one end of a spiral spring 14 while the other end'of this spring is made fast toa pin 15 on the yoke 10. The-- arbor 9 extends through a slot 16in a dial 17 and exterior to the dial the arbor carries an arm 18 parallel with said. dial and extendi'n thereo The dial carries a stop pin 19 in the path of the arm 18 to limit the movementof the arm 18 in one direction which direction is that, in which the arm 18 travels .on the unwinding of the spring 14;

Iii-the path of the arm 18, or of a manip ulating handle 20 on the end of the arm, are.

other arms 21 radiating from a spindle 22 projecting from a switch 23, which latter'is only indicated in the drawings and may be considered as of the ordinary snap switch,

type for the control of electric circuits.

The ordinary snap market has four positions in a complete rotation,.that is the circuit is completed twiceand broken twice in the complete rotation of the switchand with such a switch there are tolpapproximately the periphery I switch found on the provided fourarms 21. If. the switch be of v another type then a lesser number of arms may answer. In the path of the arms is an elastic stop 24 so disposed that when the switch arbor 20 is turned to a position where the switch is about to move from the active to the inactive position or from the inactive i to the active position, the stop 24 will hold the switch against the tendency-to return to the position. from which it was moved, it

being common in. switches ofthis type to.

turn the arbor 22 sufficiently to put a. contained spring under tenslon before the switchmember .proper is released to move with'grea'tirapidity from one position to I another. The purpose of thestop 24 is to hold the switch insuch position that a-comparatively short movement'of the arm 18 will: cause the movement ofthe switch "from its active to its inactive position or from its inactive to its active position. I Let it be assumed thatit be deslrable to 'turn electric lights on and after a predetermined time to cause the'breaking of the .circuit and the ezitingui'shing of the lamps. The movable part of the switch 23 is turned so that'an arm.21 is engaged by the stop 24 vwith the switch mechanism inya position where a slightly farther movement of the. arm 21 will cause the switch to snap to the open position. In the meantime the arm 18 is moved'clockwise as viewed in Fig. l tothe causing the arbor-3 to move in a irection' desired extent winding up'the sprin 14 .and

inactive to the pawl 5. When the arm 18 is released the reactive effect of the'spring 14 will cause the arbor to return in the re-' verse direction but now the ratchet 4 will engageth'e pawl 5, andmotion will be transmitted through the clock train. The return'movement of the arm 18 under the 'ac- '-tion ofthe spring 14 will be only so rapid.

as will be permitted by the'action of the escapement ofrthe clock train so that the desiredtime will elapse before the arm 18 will again engage the switch actively. 'Ihe rela- I tion of the smooth portion 8 of the gear 7 to blow thereto.-- x

the toothed portion thereof is such that the toothed ortion will move out of engage ment wit the pinion 6 when the arm 18 has approached an .arm 21 of the" switch .23 so that after the expiration of"the'predeter'- mined time the arm 18 is released to the full force of the spring 14 and moves with rapidity a ainst' the arm 21 of'the switch 23 and the. atter'is actuated to the open po-.

sition at once, the arm l8-beingbultnnately arrested by. en gement with t, aj fiibp 19. The relation 0 the smooth of the gear wheel 7 may be such'thatt e 'arm L8 will begin its rapid. movement under the action of the spring 14 before it reaches'the switch arm 21 and therefore will deliver a hammer The' arm 18 may betprovided with a manipulating handlev adapted to engage the arms 21 or the handle may be otherwise 10- 1 cated than shown and other means carried by the arm may be utilized for causing. the

actuation of the switch; Should it transpire that the switch 23 should l e-actuated at an earlier time than that for which the mechanism is set then an attendant may move the yoke 10 against the action of the spring 14 so asto carry the gear wheel 7 out of engagement w1th the pinion 6 and then the arm 12 will become immediately active under the stress of the spring 14 and cause the actuation of g the switch 23 .as though released at the expiration of the time limit.

The power stored up in setting theappa ratus is sufficient not only to actuate the time cohtrolling side of the apparatus but also to actuate the devices to be set in motion after the expiration of the predetermined time.

What is claimed is 1. In time controllin bor, a driving spring orthex arbor, adial traversed by the arbor, a mutilated gear on the arbor, a manipulating arm on the arbor for putting the spring under tension and in turn driven by the spring, a clock train in operative relation to the mutilated gear, a

stop on the dial in the path of the manipulating arm, and power controlling means in mechanism, an arthe pathof the arm betweenthe point where the spring is released by the mutilated gear from. the clock movement and the stop.

2. In a time controlling mechanism, an arher, a spring secure'd thereto for" imparting rotative movement to the arbor, a manipu-.

lating arm on the arbor for winding the spring, a dial traversedby the arbor and in operative relation to the mani ulating arm, a stop on the dial in the path 0 the manipulating arm, retarding means for the sprm and arbor, means for causing the release -0 the. spring and arbor from the retarding means before the manipulating arm reaches the-stop, and powercontrolling means in the-path of thearm between the point where it is released from the retarding means and vthe stop.

3. In time controlling mechanism, a clock train, a mutilated gear in o erativerelation to the clock train, a pivote frame carrying the gear, a spring tending to move the "frame in a-direction to maintain the gear in operative relation to the clock. train, an arbor mounted in the frame and constitutin a -support for the gear, a sprin connecte to the arbor and frame and ten ing whenput. I

under tension to rotate the arbor, an arm on the arbor for winding the spring and in turn moved by the, arbor underthe action of the spring, and power-controlling means in the ath of and actuated by the armwhen reeased to the unrestricted action of the spring. a

In testimony that I claim the foregoing as my ,own, I have hereto-afiixed my slgnature in the presence of two witnesses.- v

- ALBERT WHITON BAILEY. Witnesses:

J. ,W. WHEATLEY, RIGHARDW. ANDERSON.

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