US1371781A - Call-clock - Google Patents

Description

C. R. GAINS.

CALL CLOCK.

APPLICATION FILED IuIIIz l6. I920.

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4 SHEETS-SHEET Patented Mar. 15, 1921 diff/er 71.

C. R. GAINS.

CALL CLOCK.

APPLICATION FILED JUNE 16, 1920.

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CALL CLOCK. APPLlCATlON FILED JUNE 16, 1920.

Patented Mar. 15, 1921.

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(Mi/7e K attorney c. R, GAINS.

CALL CLOCK. APPLICATION FILED JUNE 16, 1920. 1,371,781 Patented Mar 15, 1921.,

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CHESTER R. GAINS OF COLFAX,

IOWA, ASSIGNOR OF ONE-HALF T SAMUEL A. POTTS, OF MUSCATINE, IOWA.

CALL-CLOCK.

Application filed June 16, 1920. Serial No. 389,363.

To all whom it may concern:

Be it known that I, CHESTER R. GAINs,

" a citizen of the United States, and a resident of Colfax, inthe county of Jasper and State of Iowa, have invented a new and useful Call-Clock, of which the following is a specification.

My invention is a reminder or call alarm principally adapted for use in oilices, kltchens, schools, laboratories, etc., or 1n any other place requiring an alarm to be sounded during predetermined time'periods,'espevcially periods of very short duration.

Primarily it is the purpose of the invention to provide a time controlled alarm that may be quickly set for sounding the alarm at the end of a given period, and after such actuation of the alarm may be operated to render the alarm inoperative and re-set to again sound the alarmat the end of the same (period of time or any other period Further, it is the purpose of the invention to provide a time controlled alarm employing a conventional time-piece and alarm together with a novel escapement for releasing the alarm at predetermined time periods.

' It is another important object of the in- I vention to provide a time controlled alarm mechanism which, after operation to release the alarm, permits the latter to sound until the alarm is manually. rendered inoperative.

My invention further provides a time con trolled alarm which may be set to be operated at given periods, such as from one to sixty minutes, and which is of comparatlvely simple construction and can therefore be produced at a minimum cost.

With the preceding and other objects that may become apparent from the following disclosure, the invention consists in the novel combination of elements, constructions and arrangement of parts and operations, 7 'all of which will be hereinafter enlarged upon, claimed and illustrated in the accompanying drawings, wherein:

Figure 1 is a front elevation of, a time controlled mechanism constructed in accord ance with the present. lnvention;

Fig. 2 is a vertical sectional view of the same;

Fig. 3 is a view taken at right angles to Fig. 1, parts being brokenaway;

Fig. 4 is a transverse sectional view taken on line 4-4 of Fig. 2;

Fig. 5 is a fragmentary detailed view;

on line 66 of Fig. 2;

Fig. 7 is a fragmentary perspective of the step-by-step alarm mechanism;

Fig. 8 is a fragmentary elevation, illustrating the alarm escapement and the operatmg elements for controlling the step-by.- step movable element, the dotted line position indicating the relative position of the parts before release of the escapement;

Fig. 9 is a view partly in elevation and partly in section of the alarm and escapement;

Fig. 10 is a fragmentary elevation of the movable step-by-step element and pivoted alarm escapment actuating trip, these parts being shown in dotted lines in inoperative or. normal position;

Fig. 11 is a fragmentary view partly in elevation and partly in vertical section of the elements controlling the movement of the step-by-step element; and

Fig. 12 is a detailed view illustrating the driving connection between the time congolling mechanism and the part shown in fieferring in detail to the drawings wherein corresponding parts are designated by corresponding characters of reference throughout the several views, the numeral 5 designates a base which is formed preferably of stamped sheet metal and mounted upon the base at its upper end is a time-piece 6 including an alarm escapement therefor indicated at 7, the alarm being mounted upon the rear face of the base.

Parallel brackets 8 are secured to the inner face of the base 5 at points below the timepiece 6 and at the lower end of the base 5 respectively, and secured to these brackets is a pair of vertical guide rods 9. A plate or carriage 10 is provided having right angular extensions 11 at its opposite ends having slidable engagement with the vertical guide rods 9. A weight 12 is secured to the carriage 10 to normally urge the same downwardly. The extensions 11 are provided with lateral bearings or ears 13 at their inner A coil spring 18 encircles the shaft 14 and has one end extended to lie against the plate 15 to normally urge the same away from the carriage 10..

Fixed to the shaft 19 of one of the reducing gears of the clock mechanism is a disk 20 from the periphery of which a plurality of spaced pins 21 project. A second set of spaced pins 22 project from the outer face of this disk.

A bearing 23 is mounted upon the frame of the clock mechanism above the disk 22 while a bracket 24 is mounted upon the base 5 in alinement with the bearing 23 and is formed with a bearing 25 upon its upper. face. An oscillatory or rock shaft 26 is journaled in the bearings 23 and 25 and in order to limit the rocking or oscillatory movement of this shaft, it is provided with a laterally disposed pin 27 at its upper end which is movable between a pair of parallel stops or pins 28 carried by the bearing 23. formed with a beveled lug 29 that extends laterally therefrom and in the path of the pins 22, and upon rotation of the disk 20 the pins 22 successively engage the beveled lug 29 and rotate the rock shaft in one direction. Each of the pins 22 upon engaging the beveled lug 29, rotates the rock shaft a quarter turn in one direction. In order to move the shaft 26 in the reverse direction, this shaft is provided with an outwardly extending pin 30 which extends at an oblique angle with respect to the lug and in the path of the radially disposed pins 21 which successively strike this pin, each moving the rock shaft a quarter turn in the reverse direction.

It will be stated that the two sets of pins I 21 and 22 are so arranged with respect to the lug 29 and pin 30 as to rotate the shaft 26 sufliciently to dispose the pin 30 in the path of the pins 21 while the lug 29 will be arrangedto clear the ins 22, and reversely upon moving the sha t 26 sufficiently to dispose the pin 30 at a point to clear the pins 21, the lug 29 will be in the path of the pins 22. The lower end of the shaft 26 is rec tan lar in cross section and received on the sha t and fixed for rotation therewith is a rectangular frame 31.

Disposed upon opposite sides of the shaft 26 and within the rectangular frame 31 is a pair of pawls 32, one of which is at all times engaged with the rack bar, thus causing the same to move step-by-step downwardly. Extending transversely through the frame 31, pawls 32and shaft 26 is a pivot 33. Leaf springs 34 are secured to the upper end of the rectangular frame31 and bear against the pivoted pawls 32 to normally retain these pawls at a slight angle with respect to the vertical.

Piv'oted in the frame of the time mechanism 6 is a latch 35 provided with right The shaft 26 is angularly disposed lugs 36 adjacent to and at its inner end respectively, the latterone being normally engaged with the spring element 37 to normally hold the latch in the position where the other lug 36 will engage a notched disk 38 of the escapement mechanism 7 to normally render the alarm inoperative.

A flexible element 39 which may be a wire or the like is attached to the outer end of 7 the latch 35, while its opposite end is attached to a pivoted trip 40 adapted to be engaged by an outstanding pin 41 arranged on the rack bar 17 adjacent the lower end thereof, and thereby place the flexible element 39 under strain to disengage the latch 35 from the escapement to sound the alarm.

Extending in right angles from the plate 15 is a finger 42 and disposed in the path of one end of this finger is one end of an L-shaped lever 43, the latter being pivoted intermediateits ends to the carriage 10 and extends outwardly therefrom and bent at its outer end to afl'ord a finger-engaging element 44. A second finger-engaging element 45 is disposed below the element 44 and is rigid with the carriage 10. It will be obvious that upon grasping the elements 44 and 45 the lever 43 will be rocked on its pivot to swing the plate 15 against the tension of the spring 18 and disengage the rack bar 17 from the pivoted pawls 32 and that upon moving the elements 44 and 45 upwardly the entire carriage and parts carried thereby will be raised to the required position to set the alarm for actuation at any predetermined time.

A casing 46 is positioned upon the base 5 to inclose the entire assemblage and includes a removable cover plate 47 secured to the parallel brackets by screws or other fastenings. This cover plate 47 is provided with a longitudinal slot 48 through which the lever 43 and handle 45 extend. The cover plate is also provided with a graduated scale 49 along one edge of the slot 48 and represents a period of time ranging from one to sixty minutes. An indicator or pointer 50 extends laterally from the grasping element 45 and is movable alongthe scale 49.

In the operation of my improved time controlled alarm, parts being in normal position as illustrated in Fig. 2, the finger-engaging elements 44 and 45 are grasped to move the rack bar away fro-m the pivoted pawls 32 and the carriage lifted until the indicator 50 corresponds to the point desired on the scale. The shaft 26 being rocked back and forth as above set forth, one of the pawls 32 will be moved to one side of the rack bar while the other pawl moves into engagement with one of the teeth of the rack bar and owing to the weight of the carriage, the same will move at a position to actuate downwardly until the pawl has assumed a horizontal position, the pawls being limited in their pivotal movement in one direction by contacting with one wall of the frame 31. In the same manner, the other pawl engages the rack bar upon reverse rotation of the shaft, thereby producing a step-bystep movement until the rack bar has reached its lowermost position when the pin 41 will engage the trip 40 to release the latch from the alarm escapement.

It is to be understood that the form of my invention herein shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, what I claim as new and desire to secure and lsirotectby Letters Patent of the United tates, 1s:

1. The combination with a time mechanism and alarm, a longitudinally movable pivotally mounted carriage adapted to be set at a point to release the alarm at a predetermined time, means operated by the time mechanism for lowering the carriage step-by-step, a pivoted element operatively connected with the alarm and in the path of the carriage to be engaged by the latter upon the end of its downward movement to release the alarm, and elements whereby to swing the carriage to a position to clear the pivoted element raised to set position.

2. The combination with a time mechanism and alarm, a slidable carriage to be set the alarm at a predetermined time, a rock shaft driven alternately in opposite directions and operated by the clock mechanism, element's carried by the rock shaft to alternately engage the carriage to feed the same step-by-step in one direction, and means for releasing the alarm upon the completion of the movement of the carria e in such direction.

3. he combination with a time mechanism and alarm, of a shaft driven alternately in opposite directions by the time mechanism, a slidable and pivoted bar, pivoted elements carried by the shaft-to retain the pivoted bar in such position as to move the same step-by-step whereby to release the alarm mechanism at the end of such movement; 1

4;. The combination with a time mechanism and alarm, of a slidable carriage to be set at a position to actuate the alarm at a predetermined time, a shaft alternately driven in opposite directions, a pair of pivoted-pawls normally resiliently held at an angle to the shaft and alternately engaged with the carriage to move the same downto permit the carriage to be wardly step-by-step, and means operated at the end of such movement of the carriage to release the alarm mechanism.

5. The combination with a time mechanism and alarm, of a rack bar mounted for longitudinal movement, a pair of pivoted pawls engageable with the rack bar, and means operated by the time mechanism for alternately engaging each of the pawls with the alternate teeth of the rack bar to move the same longitudinally step-by-step whereby to release the alarm mechanism at the end of such movement.

6. In an alarm mechanism, a base, an alarm mechanism mounted thereon, a carriage slidable on the base to be set at a point to release the alarm at a given time, a shaft journaled on the base, means for alternately driving the shaft in opposite directions at a given speed, and elements on the shaft alternately engaging the carriage whereby to move the same step-by-step to release the alarm mechanism at the end of such movement.

7. An alarm mechanism including a base, an alarm mechanism mounted thereon, a rack bar slidably mounted on the base to be set at any height to releasethe alarm mechnism at a give time, a vertically disposed shaft on the base, means alternately rotating the shaft in reverse directions at a predetermined speed, and pivoted elements carried by the shaft and engageable with the rack bar to lower the same step-by-step to release the alarm mechanism at the end of such movement.

8. An alarm mechanism including a base, an alarm escapement mounted thereon, a disk rotated at a given speed, a set of radially disposed pins extending from the periphery thereof, a second set of pins extending from one face of the disk, a vertically disposed shaft, outstanding elements fixed to the shaft and arranged at an angle to each other, one of the elements being in the path of the first set of pins while the other outstanding element is disposed in the path of the second set of pins whereupon rotation of the disk the first mentioned pins will engage its corresponding outstanding element to rotate the shaft in one direction and thereby dispose the other outstanding element in the path of the second set of pins whereby to rotate the shaft in the reverse direction, a carriage slidablymounted on the base to be set at a point to release the alarm escapement at a predetermined time, and elements carried by the shaft to move the carriage stepby-step whereby torelease the escapement at the end of the movement of the carriage.

9. An alarm mechanism including a base, an alarm escapement mounted thereon, a disk rotated at a given speed, a: set of radially disposed pins extending from the periphery thereof, a second set of pins extending from one face of the disk, a vertically disposed shaft, outstanding elements fixed to the shaft and arranged at an angle to each other, one of the elementsbeing in the path of the first set of pins while the other outstanding element is disposed in the path of the second set of pins whereupon rotation of the disk the first mentioned pins will engage its corresponding outstanding element to rotate the shaft in one direction and thereby dispose the other outstanding element in the path of the second set of pins whereby to rotate the shaft in the reverse direction, a slidable rack bar to be set at a point to release the alarm at a predetermined time, and a pair of pivoted pawls carried by the shaft and engageable with'the rack bar to lower the same step-by-step, and means for releasin the escapement upon the completion of t e downward movement of the rack bar.

10. In a time operated alarm, a time mechanism including an alarm escapement, a pivoted latch normally rendering the escapement inoperative, a pivoted trip, a flexible element connected with the trip at one end of the latch, and a slidable carriage to be set at a pointto engage the trip at a predetermined time, and means operated by the time mechanism for feeding the carriage toward the trip at a predetermined speed whereupon engagement of the carriage with the trip the latch will be disengaged from the escapement.

11. An alarm mechanism including a base, an alarm escapement mounted thereon, a carriage advanced in one direction at a predetermined speed, an outstanding pin carried thereby, a pivoted latch normally engaged with the alarm escapement, a pivoted trip arranged below the carriage, an operative connection between thetrip and latch whereupon engagement of the trip by the pin at the end of the movement of thecarriage, the alarm escapement will be released.

12. 'The combination with an alarm escapement including a pivoted latch normally v ment and a pivoted latch normally rendering the same inoperative, a longitudinally movable rack bar, time operated means includ ing pivoted pawls adapted to be alternately engaged with the rack bar to lower the same step-by-step, a trip operatively connected with the latch and disposed in the path of the rack bar to be engaged by the latter upon the completion of its longitudinal movement to disengage the latch from the escapement.

14. A time controlled alarm including a time mechanism having an alarm escapement, a shaft alternately driven in opposite directions by the time mechanism, a pair of pivoted pawls carried thereby, a slidable carriage, a rack bar hingedly mounted thereon, a spring normally urging the rack bar in aposition to be alternately engaged by the pawls to feed the same step-by-step in one direction, a latch normally engaged with the escapement, a trip operatively connected with the latch and disposed in the path of the rack bar whereby to disengage the latch from the escapement upon the end of the movement of the rack bar, and finger-engag ing elements carried by the carriage whereby to move the rack bar against the tension of the spring to clear the trip and to move the carriage to set position.

15. An alarm mechanism including a base and clock mechanism mounted thereon procarriage slidable on the/guide rods, a rack bar carried thereby, a vertical shaft driven alternately in reverse directions by-the time mechanism, pivoted elements carried thereby to alternately engage the rack bar to move the same step-by-step in one direction, and means for releasing'the alarm escapement upon the completion of the movement of'the carriage in one direction.

16. An alarm mechanism including a base, a casing mounted thereon, a clock mechanism including an alarm escapement within the casing, a carriage slidably mounted in the casing, a rack bar carried by the carriage, a graduated scale on the casing and having the same number of graduations as there are teeth on the rack bar, an indicator carried by the carriage and movable over the graduated scale, and a pairof pivoted pawls, each of which being alternately moved to one side of the teeth on the rafck bar and operated at a predetermined speed by the time mechanism, and means for releasing the alarm escapement upon completion of the movement of the rack bar.

17. A time operated alarm including a base, the time mechanism including an alarm escapement, a pair of brackets mounted on the base, a pair of guide rods mounted therein, a rack bar slidably mounted on-the rods, outstanding bearings mounted on the base, a vertical shaft journaled in the bearings, means operated by the time mechanism for ,driving'the shaft alternately in reverse directions, a pair of parallel pins extending from one of the bearings,-an outstanding pin carried by one end of the shaft and disposed between the parallel pins to limit the rotary movement of the shaft, and pivoted elements carried by the shaft to alternately engage and means operated at the the rack bar to move the same step-by-step,

end of the movement of the rack bar for releasing the escapement.

18. An alarm mechanism including a base, a time mechanism embodying an alarm escapement mounted thereon, a rack bar slidably mounted on the base to be set at a point to release the alarm at a given time, a shaft disposed parallel to the rack bar and alternately driven in reverse directions by the time mechanism, a frame fixed to rotatewith the shaft, a pair of pawls pivoted within the frame and each being adapted to be alternately engaged with the rack bar to permit the same to move downwardly stepby-step, leaf springs carried by the frame and engaging the pawls to normally retain the same at an angle with respect to the vertical whereby to engage one pawl with one tooth of the rack bar upon disengagement of the other pawl with the tooth next in order, and means for releasing the escapement upon the completion of the movement of the rack bar;

19. In a time controlled alarm, a time mechanism, a longitudinally movable carriage, a rack bar carried thereby, a shaft alternately driven in reverse directions by the time mechanism, pivoted elements carried by the shaft and adapted to alternately engage the rack bar whereby to feed the latter step-by-step, and an alarm actuated upon the end of the movement of the carriage in one direction.

20. In a time controlled alarm, a vertically arranged base, a time mechanism mounted thereon, a vertically movable carriage also mounted thereon, a rack bar carried thereby, a vertical shaft operatively connected with the time mechanism and driven alternately in reverse directions, a rectangular frame fixed to rotate with the shaft, a pair of pivoted pawls carried thereby adapted to alternately engage the rack bar to lower the same step-by-step, and an audible signal operated upon the carriage reaching its lowermost position,

21. An alarm mechanism including a base, a time mechanism mounted thereon including an alarm escapem'ent, parallel guide rods disposed longitudinally of the base, a plate slidably mounted on the guide rods, a plate hingedly supported on the slidable plate, a rack bar rigid with the free end of the hinged plate, pivoted pawls supported adj acent the rack bar and alternately engaged therewith to move the rack bar step-by-step and operated by the time mechanism, a pair of parallel finger-engaging members, one of which being rigid with the slidable plate and the other being pivotally connected thereto, amoutstanding finger carried by the pivoted plate adapted to be engaged by the pivoted finger-engaging element to swing the pivoted plate to a position to disengage the rack bar from the ivoted pawls, and means for releasing the a arm escapement upon the end of the movement of the rack bar in one direction.

22. A time controlled alarm including a base, a casing mounted thereon provided with a graduated scale and further provided with a longitudinal slot, a, carriage slidably mounted in the casing, a rack bar pivoted thereto to swing toward and away from the same, elements operated by the time mechanism for moving the rack bar step-by-step in one direction, a finger engagin element rigid with the carriage and exten ing outwardly through the slot, an indicator carried thereby and movable over the scale, an L- shaped' finger-engaging element arranged parallel to the first mentioned finger-engaging element and pivoted to the carriage, a finger extending laterally from the rack bar and disposed in the path of the inner end of the L-shaped element whereupon rocking the latter the rack bar will be moved away from the pawls to permit the carriage to be shifted to set position, a spring normally urging the rack bar into engagement with the pawls, and means to be engaged by the rack bar upon the end of the movement of the same to release the alarm escapement.

CHESTER R. GAINS,

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