US2171370A - Automatic time switch clock - Google Patents

Description

Aug. 29, 1939. -rm 2,171,370

AUTOMATIC TIME SWITCH CLOCK Filed Nov. 22, 1938 INVEP ro Adrian 13441-2122.

ATTORNEY Patented Aug. 29, 1939 UNITED STATES PATENT OFFICE 8 Claims.

This invention relates to new and useful improvements in an automatic switch clock.

More specifically, the invention relates to an improved automatic switch clock characterized by the provision of separate mechanisms controlled by a conventional clock mechanism for closing an electrical circuit at a predetermined time and for opening the electrical circuit at a predetermined time.

Still further the invention proposes the construction of an on cycle mechanism of a particular construction associated with the clock mechanism in a particular manner to cause the electrical circuit to be completed when the clock mechanism reaches a predetermined time.

Another object of this invention is the provision of an off cycle mechanism connected with the clock mechanism in a particular manner to open the circuit when the clock mechanism reaches a predetermined time.

A further object of this invention is to characterize each of the cycle mechanisms with a shaft rotatively and slidably mounted through the frame of a clock and which projects from the face side thereof and has a spindle mounted thereon and extended to the interior of said clock in a particular manner to be used for setting specific times at which the mechanisms are to open and close the said circuit.

Still further the invention proposes the provision of a pointer radially mounted on said shaft and extended through a slot formed in said spindle in a particular manner to register on a calibrated scale formed on the face of the clock for setting the mechanism at the predetermined time.

Another object of this invention is the provision of a gear with a hub freely mounted on said shaft to rotate and move longitudinally theron and having the free end of its hub in end contact with said spindle with a cam mounted on said shaft and engageable upon the end of said hub and into a cut-out formed in said hub when said predetermined time is reached in a particular manner to permit the circuit to be opened or closed.

A further object of this invention is the provision of associated contacts mounted on said gear and the face of the clock in a particular manner to control the operation of said circuit in the different longitudinal positions of the gear.

Another object of this invention is the provision of a friction means for holding said shaft against rotating while the gear is being rotated to reach said predetermined time to prevent said shaft from being turned from said predetermined time.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a perspective view of a clock having an improved automatic switch constructed according to this invention.

Fig. 2 is a vertical sectional view substantially on the line 2-2 of Fig. 1.

Fig. 3 is a horizontal sectional view on the line 3--3 of Fig. 2.

Fig. 4 is a sectional view of one of the clips per se.

Fig. 5 is a vertical sectional view through the on cycle mechanism shown on the right hand side of Fig. 2.

Fig. 6 is a sectional View on the line G6 of Fig. 2.

Fig. 7 is an enlarged detailed view on the line 1-1 of Fig. 2.

The improved automatic switch clock is to be used in conjunction with a clock including a housing I 0 consisting of a tubular side wall l0 and end walls I0 The end walls I!) are inserted into the ends of the tubular side wall l0 and are held in position by means of screws H which pass therethrough and threadedly engage brackets 12 mounted on the inner face of the tubular side wall Ill The bottom end wall 10 is formed with a plurality of foot members I3 upon which the clock body rests and which are held in position by means of screws [4.

The clock mechanism includes separate frame sections l5, l6 and I l. The frame section 15 is attached to the inner face of the side walls m of the clock body by means of brackets [8 upon which the peripheral edge of the frame section 15 is rested. Screws 19 are passed through the frame section 15 and into the brackets l8 for maintaining the section in position upon the said brackets. The frame section 16 is connected to the frame section 15 by means of brackets 20 which are extended between the adjacent faces thereof. Likewise, the frame section I! is connected to the frame section I6 by means of brackets 2! which extend between the adjacent faces of these frame sections.

A clock face 22 is provided with a plurality of numerals 23 around the peripheral edge thereof which are adapted to be viewed through an 7 opening it formed on one side of the side wall Ic The clock face is formed with an internal flange 23 which extends radially inwards and is superimposed above the edge of the frame section if. A raceway 25 having a plurality of ball bearings 26 is disposed between the adjacent faces of the flange 2i and the frame section II for rotatively supporting the clock face 22 upon the frame section 5?. The bottom wall of the clock face 22 is formed with a downwardly extending projection 2? which extends into a cutout formed in a block 28 securely attached to the bottom end wall ifi of the clock body l8 by means of screws 29. v V H V The superimposed faces of the projection 2? and the block 25 are provided with a raceway 30 having ball bearings 3! to permit the projection to turn freely upon the block28 This projection acts to centrally locate the clock face 22 within the body id and to prevent the same from swaying and being displaced from the frame section II.

A means is provided for driving the clock face 22 and includes a tube 32 which extends through an opening formed in the frame section 55 and which has its bottom end resting on the top face of the frame section if. A gear 33 is mounted on the tube 32 intermediate of its ends. The bottom end of the tube 2 is not attached to the frame H and merely rests freely thereon. A shaft 35 has its upper end rotatively supported in a bearing 36 attached to the bottom face of the frame section 5 6. The other end of the shaft 35 passes freely through an opening formed in the frame section H. A conventional clock spring mechanism including a casing 3'! is mounted on the shaft 35 and has a clock spring, not shown on the drawing housed therein, as is customarily adapted to be wound by turning the shaft 35. A gear 33 is associated with the spring mechanism as is driven thereby and meshes with gear teeth 33 formed on the hub of the gear 33.

A large gear 39 has a hub 39 rotativeiy mounted on the tube 32 by pins iii which engage in a peripheral groove 32 in the tube 32. The upper end of the hub 39 is formed with internal gear teeth which mesh with a small pinion ii. This pinion 3! is mounted upon a spindle 2 which extends through the tube 32 to the exterior of the clock body it through an opening formed in the top end wall l The bottom end of the spindle 42 is formed with a conical-shaped gear 43 which is engageable into a conical-shaped gear cutout M formed in a block 55 which is securely attached to the center portion of the clock face 22.

When the device is in operation the spring contained within the casing 37 will cause the gear 38 to be rotated, independently of the shaft 35 and cause the gear 33 to be rotated. The gear 33 will then rotate the tube 32 which in turn will rotate the spindle 52 through the medium of the gear M to cause the clock face 22 to be rotated. The gear 33 is formed with gear teeth 33 which are adapted to mesh with a conventional clock mechanism including an escapement not shown on the drawing, for preventing the spring, not shown on the drawing, contained within the casing 37 of the spring mechanism device from unwinding too rapidly to cause the clock face to be rotated at the proper rate of speed to move one complete revolution every l2 hours. V

The upper end of the spindle 42 extends from the end of the clock body iii and isformed with a knob 46 formed with threads upon which a key 4'! is adapted to be engaged. The key :3? is provided for permitting the device to be wound when the spring contained within the spring mechanism becomes unwound. When it is desired to wind the device the key i? is engaged on therknob 36 and the spindle 52 is pulled out wards, disengaging the gear ll from the internal gear teeth formed on he hub and also disengaging the conical gear from the conical gear opening i formed in the block '35. A gear 48 is mounted on the lower end of the spindle 42 above the conical-shaped gear 3 5 and adapted to mesh with a complementary gear 59 mounted on the lower end of the shaft 35 when the spindle 42 is moved outwards.

A means is provided for holding the spindle in its pulled out position and comprises a grooved wheel 59 which is mounted upon an intermediate portion of the spindle 612 which is adapted to be snapped into a pair of clips when the spindle is urged outwards. These clips comprise hollow bodies 5i which are mounted upon the bottom face of the frame section 55. Half circular elements 52 extend from the ends of the bodies 51 and are engageable into the peripheral groove 5-3 in the wheel 56 when the spindle is moved upwards.

Springs 5-3 are located within the bodies 5i and urge the half circular elements into their extended positions. The half circular elements 52 are formed with flanges 52 located within the bodies and which prevent the elements 52 from being completely urged out of the bodies 55 by the springs 53. Thus when the spindle :32 is moved outwards and the wheel ii!) is engaged into the clips it will maintain the gears 33 and 59 in an inter-engaged position for causing the shaft 2 to be rotated independently of the tube 32 for turning the shaft 35 when the key i? rotated.

A ratchet wheel St is mounted upon the shaft 35 and is engageable by a pawl 55 which permits the shaft 35 to be rotated independentiy of the casing 31 and the gear 38 for winding the spring contained within the casing The casing 31 of the spring mechanism is supported on a bracket 31 for preventing the spring from unwinding when the gears i8 and 59 are disconnected. After the winding operation is completed the spindle 42 is again urged inwards to disconnect the gears 38 and and return the gears GI and 63 to their normal positions to cause the clock face 22 to be rotated by the clock mechanism.

There is an on cycle and an off cycle associated with the clock mechanism to cause an electrical circuit to be completed at a predetermined time and to cause the same electrical circuit to be opened at another predetermined time. The on cycle mechanism comprises a shaft 2% rotatively extended through openings formed in the frame sections i8, i5 and the top wall 56* of the clock body iii. A spindle 57 is mounted on the extended end of the shaft 56 and is extended into the clock through an opening formed in the end wall it and rotatively extends through an opening formed in the frame: section l5. A pointer 53 extends through a lcngitudinal slot 5% formed in the spindle and has its inner end mounted on the shaft 56 for locking these parts for unitary turning.

Furthermore, the pointer 58 extends over a calibrated scale 59 formed on the outer face of the end wall ifi for permitting the shaft 55 to be moved to a predetermined time at which it is desired to complete the electrical circuit.

A gear 66 having a hub 63 is freely mounted on the shaft 56 to rotate and move longitudinally thereon and has the free end of the hub 66 in contact with the end of the spindle 51 as shown in Fig. 5. A cam i5! is mounted on the shaft 513 and extends into a longitudinal slot 60 formed in the hub MP of the gear 68 to lock the shaft 56 and the hub 68 together for unitary turning in the closed position of the circuit. The cam 51 is engageable when the spindle 51 is moved longitudinally inwards, into a short longitudinal slot 57 formed in the inner end of the spindle 51; and in turning the spindle, the cam 5|, when located within the slot 57*, will ride on the upper end of the hub 66* for holding the on mechanism in position in which the circuit will be opened until the predetermined time is reached permitting the cam to engage into the slot 69 for closing the said circuit.

A resilient means is provided for urging the gear '69 outwards to maintain the end of the hub in contact with the end of the spindle 51. This means comprises a spring 62 coam'ally mounted upon a portion of the shaft 56 and which operates between the adjacent faces of the gear 65 and the frame section 16. I

Associated contacts are mounted on the gear 60 and the frame of the clock to control the closing of the circuit in the different longitudinal positions of the gear 50. In the on cycle mechanism the associated contacts comprise a discshaped contact member 53 which is provided with a centrally located opening 33 through which the spring 52 and the end of the shaft 56 extend. The top face of the disc-shaped contact 53 is provided with a pair of upwardly extending arms 64 which pass through and are fixedly maintained in positions by means of friction insulation members 65 constructed of rubber or other similar material and mounted upon the gear 65. The upper ends of the arms 64 are provided with contact members 534 which are adapted to engage a contact 36 when the gear B3 is urged upwards by means of the spring 82 for completing the circuit.

The electrical circuit 67 has a lead 61* which is connected to a pin 68 mounted on the frame section it and insulated therefrom by means of an insulation member 69. A leaf spring H1 is also mounted on the pin 68 and engages the bottom face of the contact $3 in all of its adjusted positions for completing the circuit 61 at this point. The current passes from the spring '10 through the plate 33 and the arm 64 to the contact 66 when the gear -36 is moved upwards. A lead 6! extends from the contact 56 to the "off cycle which will be described in detail hereinafter. The contact 56 is mounted on the frame section i and is insulated therefromby means of an insulation member 58 which is interposed between the adjacent faces thereof.

The frame section it has a friction member H3 mounted upon the bottom face thereof and through which the shaft 55 extends. The bottom face of the friction member 10 is formed with an inwardly extending conical-shaped opening m. A friction element H is mounted on the bottom end of the shaft 55 and is maintained in position thereon by means of a nut 72 and is engageable into the conical-shaped opening when the cam 6i is resting on the end of the hub Eli to prevent the shaft 56 from turning with the gear 58 until the cam 35 engages into the cutout 60 When the cam 6i engages into the cutout 6t) the shaft 56 moves downwards to disengage the friction elements II from the opening 18 to free the shaft so that it may rotate with the gear 60.

The gear 60 is connected to the gear 39 through the medium of a gear 13 which is mounted on the top face of the frame section I6 by means of a pin 74. A gear 32 is fixedly mounted on the tube 32 and meshes with a pinion I3 freely mounted on the pin M below the gear 73. A pawl l3 operates between the gears '53 and T3 to cause them to be rotated in unison to rotate the gear 39 which in turn will rotate the spindle 42 through the medium of the gear 4| to rotate the clock face 22.

The operation of the on cycle is as follows:

The spindle 57 is manually urged downwards causing the pointer 58 to be rested upon the face of the end section Ill for preventing the shaft 56 from moving inwards. This movement of the spindle 5! causes the gear 5% to be moved downwards compressing the spring 62 and moving the arms E4 downwards to break the contact between the members 6 1 and the contact 65. This movement of the spindle 51 causes the cam 63 to move out of the cutout 65 into the cutout 51 in the bottom end of the spindle 5?. This frees the shaft 56 from the gear 65 permitting the same to be rotated to cause the cam 6! to ride upon the top end of the hub 69 The pointer 53 is then rotated to the desired position at the time it is desired to have the circuit completed by aligning it with the proper hour numeral of the calibrated scale 59.

It will be noted that the pointer 58 and the cam G! are in superimposed positions one above the other upon the shaft 56 so that the cam 62 will assume the same position with relation to the Scale 59 as the pointer 58. When the spindle 57 is released after the desired time position has been reached the spring 62 will urge the gears 60 upwards and because the cam 6| is resting on the upper end of the hub 60 formed on the gear 60, the shaft 55 will be urged outwards to cause the friction elements if to be engaged into the opening l'il formed in the friction member if! for preventing the shaft 55 from rotating when the gear 60 is rotated through the medium of the gear 13.

When the cutout 60 reaches the predetermined time, indicated by the pointer 58, the cam 6| will engage into the cutout 65 permitting the gear (50 and the spindle 571 to be moved upwards by means of the spring 32 to complete the electrical circuit and permit the shaft 56 and the spindle 51 to rotate with the gear Bil to maintain the circuit in its closed position.

The off cycle for opening the electrical circuit when a predetermined time is reached is similar to the on cycle mechanism except that the contacts are at the lower part of the device and are open when the device operates. In the on cycle mechanism the contacts are located at the top of the device and close the circuit when the gear 58 and hub (ill move upwards.

To hand set the clock face 22 to indicate the proper time the key 3? is removed from the knob 45 and the spindle 42 is urged inwards to engage the gear 43 into the cutout 84 so that when the knob 46 is rotated it will cause the clock face 22 to be rotated to align the proper time numeral 23 with the cutout [B formed in the body ID. This rotation of the spindle 42 must be in a direction which will permit the gears 13 and 95 to rotate past the pawls 13 and 9| permitting the gears l3 and 9! to remain still.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

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

i. In combination with a clock, a shaft rotatively and slidably mounted through the frame of said clock and projecting from the face side of the clock, a spindle mounted on the extended end of said shaft and extending into said clock, a pointer radially mounted on said shaft and extending through a longitudinal slot in said spindle to lock these parts for unitary turning and furthermore extending over a calibrated scale on the face of the clock, a gear with a hub freely mounted on said shaft to rotate and move longitudinally and having the free end of its 1' hub in end contact with said spindle, a cam mounted on said shaft and extending into a longitudinal slot in said hub to lock these parts for unitary turning and engageable when said spindle is moved longitudinally inwards into a short longitudinal slot in the inner end of said spindle and in a turned position of the spindle engageable on the top edge of said hub, resilient means urging said gear outwards, associated contacts mounted on said gear and the frame of the clock to control a circuit in the of said clock and projecting from the face side of the clock, a spindle mounted on the extended end of said shaft and extending into said clock, a pointer radially mounted on said shaft and extending through a longitudinal slot in said spindle to lock these parts for unitary turning and furthermore extending over a calibrated scale on the face of the clock, a gear with a hub freely mounted on said shaft to rotate and move longitudinally and having the free end of its hub in end contact with said spindle, a cam mounted on said shaft and extending into a longitudinal slot in said hub to lock these parts for unitary turning and engageable when said spindleis moved longitudinally inwards into a short longi tudinal slot in the inner end of said spindle and in 9. turned position of the spindle engageable on the top edge of said hub, resilient means urging said gear outwards, associated contacts mounted on said gear and the frame of the clock to control a circuit in the different longitudinal positions of said gear, a friction member mounted on the frame of the clock and a friction element mounted on said shaft and engaging said friction member in a position of said shaft when said cam is on the edge of the hub for holding the shaft non-rotative, said cam and said pointer being mounted in superimposed positions upon said shaft for causing said cam and said pointer to move in unison so that said cam will assume an adjusted position with relation to said calibrated scale similar to that assumed by the pointer.

3. In combination with a clock, a shaft rotatively and slidably mounted through the frame of said clock and projecting from the face side of the clock, a spindle mounted on the extended end of said shaft and extending into said clock, a pointer radially mounted on said shaft and extending through a longitudinal slot in said spindle to lock these parts for unitary turning and furthermore extending over a calibrated scale on the face of the clock, a gear with a hub freely mounted on said shaft to rotate and move longitudinally and having the free end of its hub in end contact with said spindle, a cam mounted on said shaft and extending into a longitudinal slot in said hub to lock these parts for unitary turning and engageable when said spindle is moved longitudinally inwards into a short longitudinal slot in the inner end of said spindle and in a turned position of the spindle engageable on the top edge of said hub, resilient means urging said gear outwards, associated contacts mounted on said gear and the frame of the clock to control a circuit in the different longitudinal positions of said gear, a friction member mounted on the frame of the clock, and a friction element mounted on said shaft and engaging said friction member in a position of said shaft when said cam is on the edge of the hub for holding the shaft non-rotative, said gear being connected with the clock mechanism in a manner to cause said gear to be rotated for aligning the cutout therein with said cam when said cutout reaches the predetermined position similar to the setting of said pointer.

4. In combination with a clock, a shaft rotatively and slidably mounted through the frame of said clock and projecting from the face side of the clock, a spindle mounted on the extended end of said shaft and extending into said clock, a pointer radially mounted on said shaft and extending through a longitudinal slot in said spindle to lock these parts for unitary turning and furthermore extending over a calibrated scale on the face of the clock, a gear with a hub freely mounted on said shaft to rotate and move longitudinally and having the free end of its hub in end contact with said spindle, a cam mounted on said shaft and extending into a longitudinal slot in said hub to lock these parts for unitary turning and engageable when said spindle is moved longitudinally inwards into a short longitudinal slot in the inner end of said spindle and in a turned position of the spindle engageable on the top edge of said hub, resilient means urging said gear outwards, associated contacts mounted on said gear and the frame of the clock to control a circuit in the different longitudinal positions of said gear, a friction member mounted on the frame of the clock, and a friction element mounted on said shaft and engaging said friction member in a position of said shaft when said cam is on the edge of the hub for holding the shaft non-rotative, said automatic switch being characterized by an on cycle for causing said circuit to be completed when said predetermined position is reached, and an off cycle for causing said circuit to be broken when said predetermined position is reached.

5. In combination with a clock, a shaft rotatively and slidably mounted through the frame of said clock and projecting from the face side of the clock, a spindle mounted on the extended (iii end of said shaft and extending into said clock, a pointer radially mounted on said shaft and extending through a longitudinal slot in said spindle to lock these parts for unitary turning and furthermore extending over a calibrated scale on the face of the clock, a gear with a hub freely mounted on said shaft to rotate and move longitudinally and the free end of its hub in end contact with spindle, a cam mounted on said shaft and extending into a longitudinal slot in said hub to lock these parts for unitary turning and engageable when said spindle is moved longitudinally inwards into a short longitudinal slot in the inner end of said spindle and in a turned position of the spindle engageable on the top edge of said hub, resilient means urging said gear outwards, associated contacts mounted on said gear and the frame of the clock to control a circuit in the different longitudinal positions of said gear, a friction member mounted on the frame of the clock, and a friction element mounted on said shaft and engaging said friction member in a position of said shaft when said cam is on the edge of the hub for holding the shaft non-rotative, said automatic switch being characterized by an on cycle for causing said circuit to be completed when said predetermined position is reached, and an off cycle for causing said circuit to be broken when said predetermined position is reached, said automatic contacts of said on cycle comprising a discshaped contact supported upon said gear and having arms extending through said gear and insulated therefrom, a spring mounted upon a portion of said clock and engageable against one face thereof in all of the adjusted positions of said gear, and contact elements formed on the upper ends of said arms, a contact mounted on said clock and above said gear and adapted to be contacted by said contact members when said gear is moved upward by the use of said spring when said cam engages the cutouts in said hub.

6. In combination with a clock, a shaft rotatively and slidably mounted through the frame of said clock and projecting from the face side of the clock, a spindle mounted on the extended end of said shaft and extending into said clock, a pointer radially mounted on said shaft and extending through a longitudinal slot in said spindle to lock these parts for unitary turning and furthermore extending over a calibrated scale on the face of the clock, a gear with a hub freely mounted on said shaft to rotate and move longitudinally and having the free end of its hub in end contact with said spindle, a cam mounted on said shaft and extending into a longitudinal slot in said hub to lock these parts for unitary turning and en ageable when said spindle is moved longitudinally inwards into a short longitudinal slot in the inner end of said spindle and in a turned position of the spindle engageable on the top edge of said hub, resilient means urging said gear outwards, associated contacts mounted on said gear and the frame of the clock to control a circuit in the different longitudinal positions of said gear, a friction member mounted on the frame of the clock, and a friction element mounted on said shaft and engaging said friction member in a position of said shaft when said cam is on the edge of the hub for holding the shaft non-rotative, said automatic switch being characterized by an on cycle for causing said circuit to be completed when said predetermined position is reached, and an off cycle for causing said circuit to be broken when said predetermined position is reached, said contact members for said off cycle mechanism comprising a discshaped contact member, upwardly extending arms mounted on one of the faces of said contact member and extending through insulation members formed on said gear for connecting said contact plate to said gear, a stop element on said clock above said gear and against which said arms are adapted to abut for limiting upward movement of said gear, and contact members mounted on said clock and engageable by said contact member, when said cam engages on the end of said hub.

'7. In combination with a clock, a shaft rotatively and slidably mounted through the frame of said clock and projecting from the face side of the clock, a spindle mounted on the extended end of said shaft and extending into said clock, a pointer radially mounted on said shaft and extending through a longitudinal slot in said spindle to lock these parts for unitary turning and furthermore extending over a calibrated scale on the face of the clock, a gear with a hub freely mounted on said shaft to rotate and move longitudinally and having the free end of its hub in end contact with said spindle, a cam mounted on said shaft and extending into a longitudinal slot in said hub to lock these parts for unitary turning and engageable when said spindle is moved longitudinally inwards into a short longitudinal slot in the inner end of said spindle and in a turned position of the spindle engageable on the top edge of said hub, resilient means urging said gear outwards, associated contacts mounted on said gear and the frame of the clock to control a circuit in the different longitudinal positions of said gear, a friction member mounted on the frame of the clock, and a friction element mounted on said shaft and engaging said friction member in a position of said shaft when said cam is on the edge of the hub for holding the shaft non-rotative, and means for permitting the clock mechanism to be wound for driving said gear.

8. In combination with a clock, a shaft rotatively and slidably mounted through the frame of said clock and projecting from the face side of the clock, a spindle mounted on the extended end of said shaft and extending into said clock, a pointer radially mounted on said shaft and extending through a longitudinal slot in said spindle to lock these parts for unitary turning and furthermore extending over a calibrated scale on the face of the clock, a gear with a hub freely mounted on said shaft to rotate and move longitudinally and having the free end of its hub in end contact with said spindle, a cam mounted on said shaft and extending into a longitudinal slot in said hub to lock these parts for unitary turning and engageable when said spindle is moved longitudinally inwards into a short longitudinal slot in the inner end of said spindle and in a turned position of the spindle engageable on the top edge of said hub, resilient means urging said gear outwards, associated contacts mounted on said gear and the frame of the clock to control a circuit in the different longitudinal positions of said gear, a friction member mounted on the frame of, the clock, and a friction element mounted on said shaft and engaging said fricnon member in a position of said shaft when said cam is on the edge of the hub for holding the shaft non-rotative, and means for permitting the clock mechanism to be wound for driving said gear, said means comprising a spindle having one of its ends extended into said clock and the other of, its ends extended from said clock, said end contained within said clock having a gear mounted thereon, a shaft rotatively supported within said clock, a clock spring device mounted on said shaft, a gear mounted on one end of said shaft device.

and engageable with said gear, and a key engageable on the extended end of said spindle for r0- tating said spindle to correspondingly rotate said shaft to wind the spring contained within said ADRIAN MARTIN.

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