US1383893A - Time control - Google Patents

Description

WITNESSES I. L. wIN'KLEII.

TIME CONTROL.

APPLICATION FILED Nov. 23. 1920.

Patend July 5, 1921.

5 SHEETS-SHEET l I I Slm/Enron JLM/INKL El? gcf 99, ATTURNEYS J. L. WINKLER.

TIME CONTROL.

APPLICATION FILED Nov. 23, 1920.

Patented July 5, 1921.

5 SHEETS-SHEET 2.

/N VEN TUR JZ. W/NKLER 1. L. WINKLER.

TIME CONTROL.

APPLlcATloN FILED N0v.23,192o.

Patented July 5, 1921.

5 SHEETS-SHEET 3 l T 1 i /NVENTUH Il. W/NKLE WIT/VESSES Wip/@ A TTOR/VEVS J. L. WINKLER.

TIME CONTROL.

APPLICATION HLED Nov. 23,1920.

1,383,893, A Patented July 5,1921.

5 SHEETS-SHEET 4. fig.

MM JL W/NKLE/P WN/ M1/k@ TYOHNEYS J. L. WINKLER.

TIME CONTROL.

APPLlcAloN FILED Nov. 23. 1920.

HEET 5.

Patented July 5, 1921.

INVENTO? JZ. M/VKLER WITNESSES @Zz/nw @o A Tram/H5 UNITED STATES PATENT OFFICE.

TIME coNTRoL.

Specification of Letters Patent.

Patented July 5, 1921,

Application led November 23, 1920. Serial No. 426,050.

To all rwhom t may conce/m:

Be it known that I, JACK L. WINKLER, a citizen of the United States, and resident of Hempstead, in the county of Nassau, Long Island, and State of New York, have 1nvented a new and Improved Time Control, of which the following is a full, clear, and exact description.

My invention relates to a time control, and aims to provide a device o-f this nature, more particularly intended for use in connection with the operation of a photograph printing machine, although not necessarily limited to this adaption.

In connection with rinting machines, it is a well appreciated act, that it has been customary to provide a casing within which a source of illumination is provided. Also a translucent panel has been utilized in one of the side walls of the casing, which translucent panel was adapted to receive a negative and a sensitized material, from which the positive was to be made, these elements being retained in this position by means of'- a lid which was brought tobear firmly against the same.

Devices of this nature have offered numerous defects in that quite a few of the prints were spoiled, incident to the human equation, i. e. that the operator exposed the sensitized paper for too great, or too short a space of time.

Thus, due to too small or great an action of the light rays upon the sensitized surface, a too light or dark a print has resulted.

Having these defects in mind, I have constructed a time control, which, as previously brought out, is particularly adapted for use in connection with -a device of this nature,.

and which, as also aforestated, may be modified in structure to fill various requirements.

An object of my invention is the construction of a control which shall automatically cause an energizing of the source of illumination upon the parts reaching their proper position, but not before, and which shall also cause al cessation of this energization upon the parts being released.

A further object of my `invention is the construction of a device of this 'nature which will automatically release the parts and extinguish the source of illumination upon a certain pre-determined amount of time having elapsed.

A still further object of my invention is the provision of a time control which may be adjusted to operate after the expiration of any desired amount of time, which latter is capable of turning according tothe necessities of the operation to be performed.

Further objects of my invention will appear in the annexed specification and drawings, which latter present one practical embodi'ment of my invention, and in which- Figure 1 is a partly sectional side view illustrating my time control as associated with a printing box.

Fig. 2 is a plan view thereof.

Fig. 3 is a fragmentary sectional view of certain of the parts illustrated in Fig. 1, and showing the same in the act of being seated.

lFig.r 4 is a view similar to- Fig. 3, but sho-wing the parts after they have assumed their completely seated position.

Fig. 5 is a sectional view taken in the direction of the arrows, and onthe line 5 5 of Fig. 3, and

Fig. 6- is a detail view of one of the parts employed. l

For the general illustration of the application ofmy contro-l, reference is had to Figs. 1 and 2, and in these figures, it will be noted that the reference numeral 10 indicates a housing o-f any suitable character, and material, which is provided with an interior source of illumination 11, movably mounted as at 12 to permit of the positioning of the same at apo-int in which the light rays will be directed to the best advantage.

A transparent portion 13 is conveniently formed in the upper'face of the housing 10, and is adapted to act as a bed for receiving the negatives and sensitized sheets. These latter are retained in position by any suitable type of folding bac-k 14, which is hingedly secured to the casing 10, as at 15.

To provide means which will serve to f effect a depression of the folding back 14 upon the bed of transparent material 13,- so as to properly grip any interposed sheets,

a lever 16 is hingedly secured as at 17 to they casing 10, such lever having a tendency to be drawn toits up-right position by any suitable means such as a spring 18.

. In this connection it is to be noted that after more fully specified.

With a view of providing means for controlling the action of the source of illumination 11, so that the same will be .actuated only upon the parts assuming their'active or printing position, a switch 21 is utilized for controlling the flow of current through the wires 22, which latter lead to the bulbs 11. The switch 21 is in turn operated by means of a stem 23, which latter projects beyond the casing 10 and contacts with the lever 16 when the latter is in the position indicated in dotted lines. ln this position it will be noted, reference being had to Figs. 3 and 4, that a retraction of the stem 23 is effected, which serves to close the switch, thus actuating the bulbs 11.

However, it will be seen that upon the lever 16 rising to its up-right position that the stem will be projected `which will permit the switch 21 to remain open, thus opening the circuit, as has been shown in Figs. 1 and'2. Thus, the bulbs will be actuated when the parts are in their printing position, but will be extinguished upon the parts being elevated. It will also be seen that the switch 21 might not be operated with sufficient speed to cause a simultaneous extinguishment of the bulbs 11 with the rising of the lever 16, and for' this reason, the action of the fingers 20, as previously brought out, is utilized, these fingers serving to at all times maintain the back-14 in its proper position until the lever 16 is moved to a point at which the stem 23 will be entirely projected, thus cutting the circuit.

Thus it will be seen that the bracing of the lever 16 to the position indicated in dotted lines in Figs. 1, 2 and 3 and in full lines in Fig. 4, will result in an actuation of the printing medium', at the same time retaining the parts in their proper position, and to retain the lever 16 in the position afore referred to, I conveniently provide a lug 24, which is affixed to the lever, and adapted to engage with a latch 25, secured to the housing 10, as has been shown.

To provide means which will form a rocking mounting for the latch 25a shaft 26 is rotatably mounted, as at 27 within the housing 10, and the lower end of the latch 25 is secured to this shaft. Thus upon the shaft being oscillated, the latch will be caused to disengage the lug 24 in the manner aforedescribed, it being noted, however, that the shaft has one end of a contracting spring 28 associated with it, which spring serves to normally operate the shaft to retain the latch in firm engagement with the lug 24.

To now provide means which will serve to cause an automatic disengagement of the latch from the lug after the lapse of a eertain interval of time, which interval may be varied, any suitable rotatable member 29 is rotatably mounted within the housing as at 30,- and mounts a spiral flange 31, which may conveniently be provided with a series of steps 32. A traveler 33 is slidably mounted upon the shaft 26 with which it is held in intimate contact by means of any suitable type of spring and may be moved longitudinally' thereof, by any suitable means, such as a bar 34 provided with serrations 35 engaged by a cog wheel 36, adapted to be turned by a suitable dial 37 mounted upon the outer face of the housing 10. Thus a rotation of the dial 37 will serve to effect a projection or retraction of the bar 34, and consequently the traveler 33 upon the shaft 26.

A pin 38 secured to the traveler 33 permits of a' contact being effected between the spiral 31 and the traveler 33 upon a rotation of the member 29. AA shaft 39 adapted to be rotated in the direction of the arrows in Fig. 5 by any suitable means such as a spring motor 40, is connected to the member 29 so that an operation of the motor 40 will result in a turning of the member 29 ultimately causing a contact between one of the step portions 32 of the flange 31, and the pin of the traveler 33 resulting in an oscillation of the shaft 26 in a direction opposed to the contracting tendency of the spring 28, consequently effecting a release of the lug 24 from the latch 25, and permitting the parts to move into non-operating position.

It will be appreciated that in the embodiments which I have illustrated my invention, that the same is intended for use in a dark room, and with this in view an opening 41 may be formed through the casing, which opening permits the4 light rays emanating from the conventional ruby lamp 42 to pass into the interior of the dial 37, which may be conveniently formed with a series of perforations 43 in the form of characters corresponding to the number of seconds during which the parts are to be retained in their operating position.

Thus an operator may actuate the dial 37 in a darkened room to effect a retraction or projection of the traveler 33, to cause a movement of the shaft 26 to be oscillated upon the member 29 having reached a certain point in its cycle of rotation, thus varying, according to the necessity of the work to be done, the amount of time during which printing will be'eifected.

Obviously the `motor mechanism in the embodiment illustrated would be subject to exhaustion, and with a view of providing an automatic rewind, I provide structure permitting of the achievement of this result upon the parts being re-set by the operator, which structure will, at the same time prevent any operation of the parts prior to the point at which all of the same arein their proper position. The structure above referred to conveniently includes a segmental rack 44 rotatably mounted upon the shaft 45, which rack engages with a gear 46 s cured to the shaft 39, to which one end o the spring 40 is afiixed.

Anarm 47 is also rotatably secured to the shaft 45, which arm swingingly carries as at 48 a contact member. This contact member preferably includes a body portion 49 which is limited in its swinging` motion by any suitable means, such as a pin and cut out portion 50. An inclined slot 51 is also cut in the same, and the body portion 49 presents a sidel edge beyond said slot having a shoulder 52, and inclined head portion 53.

Thus upon the arm 47 being swing down- Wardly through the slot 54 through which it extends,it will be seen that the shoulder 52 of the contact member will engage with the shoulder 55 affixed to one end of the segmental rack 44, and continued downward motion of the arm 47 communicated to `the same by virtue of its engagement with the contact plate 56 afiixed to the lever 16 will result in a movement of the segmental rack and a consequential rotation-ofl the shaft 39, thus tensioning the spring 40.

The inclined slot-51 of the contact member 49 will engage just prior to the engagement of the latch 25 'and lug,24 with the pin 57 which will act as a guide to move the shoulder 52 of the contact member out of contact with the shoulder 55 of the segmental rack, the inclined head 53 acting Ito provide a shock absorbing medium which will prevent the segmental rack from too rapid an initial retrograde movement.

It will also be seen that the contact member 49 would not clear the pin 57, if the shoulder 55 were permitted to move freely -upon the rack 44, and with this in view,`

a spring 55 is utilized which will effect a seating of the shoulder 55 and permit the contact member 49 to clear the pin 57 upon its upward motion. It will be obviously appreciated that to depend uponthe traveler 33 to effect a stopping of the motor 40, would place too great a strain upon the parts, and with this in view a train of gears 58 in the embodiment illustrated, serves to oscillate the pendulum 59 by virtue of any convenient type of escapement 60. In this connection it will be noted that the weight forming the pendulum is adjustably mounted to compensate for the non-uniformity of` various springs I 'thus preventing any further lower movement of the motor 40, this stoppage occurring simultaneously with the movement of the traveler 33. Thus no strain is placed upon the arts. Also it will be seen that a rewin ing of the spring 40 by means ofthe is prevented by means of the rod 61 and with a view of permitting a tensioning of the springit will be noted that the primary gear of the train is mounted on the collar 62 of any conventional type of one way clutch.`

From this it will be appreciated that the segmental rack may be operated to effect a tensioning ofthe spring 40 without a rotation being imparted to the gear train 58 upon the shaft 39 rotating in a direction resulting in a tensioning of the spring. Further the clutch 62 will immediately take hold upon the shaft 39 moving in the direction of the arrows in Fig. 5, which will permit ofthe operation ofthe gear train.

From the foregoing it will be appreciated that I have constructed'a time control particularly applicable for use in connection with printing machines, but which. may be subjectedto numerous modifications permitting of a different adaption, and by means of which the parts will primarily be held in operative position for a certain period of time subsequent to which they are automatically released.

It will further be seen that the period of time referred to in the preceding paragraph is susceptible to variation according to the necessities of the o eration.

Also no re-winding o the motor will be necessary, as this will be automatically accomplished upon the parts being re-set.

Obviously numerous modifications of structure might readily be resorted to without in the least departing from. the spirit of my invention, which I claim as- 1. In combination with a housing, l and door movably associated therewith, of means for automatically opening said door after soI the lapse of an interval of time, and automatic. means for actuating a source of illumination within said housing only while the door is in closed position.

2. In combination with a housing, and

niination within said housing only while the door is in closed position, said latter means effecting an extinguishment of said source of illumination upon the door being moved to its open position.

3. A time control, including a spiral flange, a motor for rotating said spiral flange, a bar rockingly positioned adjacent said flange, means upon said bar being adapted to be contacted with by said flange, for moving said bar, and means for effecting a rewinding of said motor.

4. A time control, including a spiral flange, a motor for rotating said Spiral flange, a bar rockingly positioned adjacent said ange, means upon said bar being adapted to be contacted with by said flange, for moving said bar, and means for effecting a rewinding of said motor upon said shaft being returned to its normal position.

5. A time control, including a housing formed with an opening, a cover secured to said housing, and being capable of being brought to a position at which it will overlie said opening, a lever secured to said cover to seat the same upon said housing, an arm bearing against the under side of said lever, means normally tending to exert a pull upon said lever, a latch cooperating with said lever to retain the same in depressed position, a motor operated time control for effecting a release of said latch, said motor being connected to said bar, whereby upon said lever being manually depressed subsequent to a release of said latch, the motor will be re-set.

6. A time control, including a housing formed with an opening, a cover adapted to coperate with said housing, and seating upon said opening, a lever connected to said cover and being adapted to effect a seating thereof, means for exerting a pull upon said lever to normally effect an unseating of said cover, a latch adapted to coperate with said 4lever for retaining the same in depressed position, time controlled means for operating said latch, a source of illumination within said housing, a switch for controlling the flow of current through said source of illumination, a switch operating stem connected tosaid switch, said stem `extending beyond said housing and serving to normally maintain the circuit through said source of illumination open, said lever bearing against said stem, to effect a closing of the switch when the said lever is in depressed position.

7. A time control, including a housing formed with an opening, a cover adapted to coperate with said housing and to overlie said o ening, a lever connected to said cover and e ecting a seating of the same, a'latch coperating with said lever for retaining the same in depressed position, time oontrolled means for operating said latch, a 66 source of illumination within said housing,

a dial movably secured to the interior of said housin and beingconnected to said time'control ed means for effecting a setting of the same, said dial being formed with perforations providing indicating marks, said housing being formed with openings to the rear of -said dial, whereby light rays emanating from said source of illumination serve to render said indicating marks visible. v

8. A time control, including a housing formed with an opening, a cover adapted to coperate with said housing and to overlie said opening, a lever connected to said cover for effecting a movement of the same, means tending to elevate said lever, a latch coperating with said lever to retain the same in depressed position, a rotatable shaft connected to said latch, and time controlled means for rocking said shaft whereby to move said latch and to release said lever.

9. A time control, including a housing formed with an opening, a cover adapted to coperate with said housing and to overlie said opening, a lever connected to said cover for effecting a movement of the same, means tending to elevate said lever, a latch coperating with said lever to retain the same in depressed position, a rotatable shaft connected to said latch, a spiral flange, means for rotating said spiral flange, and means connected to said bar and adapted to be contacted with by said flange for effecting a movement of said latch, and release of said lever.

10. A'time control, including a housing 100 formed with an opening, a cover adapted to coperate with said housing and to overlie said o ening, a lever connected to said cover for e ecting a movement of the same, means tending to elevate said lever, a latch coperating with said lever to retain the same in depressed position, a rotatable shaft connected to said latch, a bar secured to said latch, a traveler slidably mounted upon said bar, a spiral flange rotatably mounted adjacent said traveler, and means for rotating said flange whereby to effect a contact with said traveler and rocking of said bar attached thereto.

11. A time control, including a housing formed with an opening, a cover adapted to coperate with said housing and to overlie said opening, a lever connected to said cover for effecting a movement of the same, means tending to elevatesaid lever, a latch coperating with said lever to retain the same in depressed position, a rotatable shaft connected to said latch, a rockingly mounted bar, means for exerting a pull upon said bar, a traveler slidably secured to said bar and means for moving said traveler longitudinally of the same, a flange rotatably mounted adjacent said traveler, and means for rotating said flange whereby to effect contact with said traveler to rock said bar.4

12. A time control, including a housing formed with an opening, a cover adapted to coperate With said housing and to overlie said opening, a lever connected to said cover for effecting a movement of the same, means tending to elevate said lever, a latch coperating With said lever to retain the same in depressed position, a rotatable shaft connected to said latch, a rockingly mounted bar, means for exerting a pull upon said bar, a traveler slidably secured to said bar and means for moving said traveler longitudinally of the same, a flange rotatably mounted adjacent said traveler, means for rotating said ange whereby to effect contact with said traveler to rock said bar, and means secured to said bar and adapted to co-act with said Worm driving means to effect a stoppage of the latter when the bar is rocked.

13. A time control apparatus, including a housing formed with an opening, a cover adapted to coperate with said housing and to overlie said opening, a lever connected to said cover for effecting a movement of the same, means tending to raise said lever and cover, a latch Jfor normally securing said lever in depressed position, a rockingly mounted arm adapted to contact with said lever adjacent its outer end, a segmental rack connected to said arm, a time controlled mechanism adapted to eect a movement of said latch, a motor for operating said time controlled mechanism, said -motor engaging said segmental rack.

14. A time controlled mechanism, including a housing formed with an opening, a cover normally adapted. to coperate with said housing and to normally overlie said opening, a lever connected to said cover, means for normally raising said lever, time controlled means for effecting a release of said lever subsequent to its being depressed, a shaft, an arm secured to sald shaft, a spring for raising said arm and pressing the outer end of the same into intimate contact with said lever, a segmental rack also mounted upon said shaft, a motor for operating said time controlled mechanism, a certain portion of said motor being engaged by said segmental rack, a dog secured to said arm, a shoulder forming a part of said segmental rack, said dog being adapted to cooperate With said shoulder, and means for moving said dog out of contact with said shoulder, When said lever is in depressed position.

15. A time controlled mechanism, includ- I ing a housing formed with an opening, a cover normally adapted to c operate with said housing and to normally overlie said opening, a lever connected to said cover, means for normall raising said lever, time controlled means or effectin a release of said lever subsequent to its belng depressed, a shaft, an arm secured to said shaft, a spring for raising said arm, and pressing the outer end of the same into intimate contact with said lever, a segmental rack also JACK L. WINKLER.

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