US949764A - Time-controlled apparatus. - Google Patents

Description

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ARTHUR HAMMERSTEIN, OF NEW YORK, N. Y.

- TIME-CONTROLLED APPARATUS.

Specification of Letters Patent.

Patented Feb. 22, 1910.

Application filed February 20, 1908. Serial No. 416,859.

To all whom it may concern:

Be it known that I, Auriu'm [Immun- H'r cm, a citizen of'the United States, and

resident of the borough of Manhattan, city,

county, and State of New York, have invented certain new and--usefulImprovements in 'Iime-(lontrolled Apparatus, of which the following is a specification.

My invention relates to time'controlled apparatus and has for its object to provide a mechanism which after a predetermined period of time will perform certain functions, such as for instance raising a carrier with eggs from the boiling water, or operating an alarm to give notice of the fact that the period of time for which the apparatus was set has ela sed.

My invention will be fully described hereinafter and the features of novelty will be pointed out in the appended claims.

In the accompanying drawings in which I have illustrated two forms of my invention; Figure 1 is a sectional elevation showing my apparatus in use, Fig. 1" is an enlarged detail view of the piston rod; Fig. 2 is a front elevation of my device; Fig. 3 is an enlarged detail section of the air inlet. valve; Fig. 4 is a front elevation of a difl'crent form of my apparatus and Fig. 5 is a side elevation thereof.

The apparatus comprises a cylinder A to which is secured a bracket B having arms C and resilient tongues I). The bracket. is further provided with a member E adapted for engagement with the edge of a receptacle F, which receptacle is also engaged by the arms C, and the resilient tongues D which serve to hold the apparatus in operative position. I

A piston G is arranged to work in the cylinder A, andis secured to a piston rod G having an operating knob or handle G The said piston G fits loosely in the cylinder so that air may pass slowly between it and the cylinder wall for the purpose to be more fully described hereinafter. A groove Gr extends longitudinally of the piston rod G and cooperates with a projection G located on the inside of the cylinder head,-to prevent the said piston rod from turning. A coil spring II is located inside of said cylinder between the piston G and the cylinder head A. The lower cylinder head A is provided'with an air inlet having a valve seat I and a valve I secured to a stem P, which valve is maintained in its normal or closed position by a springl. The piston rod G passes between two members of a lever J pivoted at J it )On the cylinder .head A and having an inclined slot J near its free end. A link K is provided with a )lfl K arranged 'to work in said slot J an is pivotally connected at K with a latch L fulcrumed at L on the cylinderA. This link K also carries a member K which serves as an indicator in connection with a scale G which is produced on the piston rod G to indicate the period-of time which will elapse before the apparatus will perform the function for which it is intended. This member K also acts as a retaining device in connection with grooves G extending around the )iston rod at. the various points of the scale, to hold said piston rod as will be hereinafter described. A supporting hook M pivot ed at M to an upward extension of the bracket B is thrown into its upper or inoperative position by a spring M The hook M is connected by means of a link N with a. piston N of a dash-pot N secured to said bracket l). The said hook is also provided with, a nose M? adapted for engagement with. the latch L as will be more clearly brought out hereinafter.

O is a carrier, in the present instance a circular plate having openings 0 for the A handle or rod P is secured to the central ortion of the said carrier and is provide with spaced projections P and an eye P arranged for engagement with the free end of the hook M.

Assuming the device is in position on a reception of eggs 0.

receptacle and is intended for timing the the apparatus would perform its functionzf In thus drawing out the piston rod the sue.-

tion induced by the piston opens the valiteil this;

and permits air to enter the cylinder at point. After the piston rod G has;

drawn out the required distance, the carrier in the present illustration with eggs thereinis then placed upon the hook M,-and theto force the piston G tion of the sprin is retarded by the air a which is between t e iston G and the cylin- K to ride up in the slot J der head A which air passes slowly b the piston G owing to the fact that the sai piston fits the'cylinder loosely, the valve I being kept closed meanwhile owing to the pres sure of the air thereon- The iston slowly descends until the head G of t e piston rod engages the. lever J which is now forced downwardly causing the pin K of the lever As soon as the said in K has reached the upper portion of sa1d slot, which takes place before the piston has reached its lowermost .position, the continued pressure of the head G forces the lever J to further descend and thus moves the link K in a downward direction,

normal position by the spring M and swings thus causing the latch L to' swing on its ivot L. As soon as the latch L has moved own enough to release the nose M of the hook, the said hook is forced upward to its the carrier with the eggs thereon out of the boiling water. the hook is retarded by the dash pot N and piston N so that the motion is a slow and gradual one and doing away with the danger of breakage or other injury to the contents of the carrier. The eggs are then removed from the carrier and the operation repeated. It will thus be seen that my apparatus is simple and highly effective and is adjustable to dlfi'erent lengths of time, by simply drawing the piston rod out more or less as desired.v Furthermore the timing begins atthe instant desired, in the present case, the moment the eggs reach the boiling water.

In many instances it may be desirable to sound an alarm upon the lapse of a predetermined length of time, in which case the device illustrated in Figs. 4 and 5 may be used. In this form of my invention the cylinder a is provided with a bracket 6 secured thereto by collars b and screws 1) for hanging or otherwise supporting the device. a is a bell which is suita ly mounted on the cylinder a and provided with the usual spring capable of belng wound and which when unwinding as hereinafter described operates the clappers or hammers d to sound the bell. A inion e is secured to the shaft 0' of the bel to which one end of the spring is also fastened. The other end of the spring is spring. During this winding of t This upward movement of drawn from the opening f of the rack 7,

A bar a is loosely mounted on the shaft e of the bell and carries a spring pressed pawl e which engages the teeth of a ratchet wheel a secured to the shaft e to turn therewith. The pinion e meshes with a rack f capable of sliding in guides it carried by. the cylinder q. The up er end of this rack is bent and 1s provide with an opening 5" into which extends a projection g locate on the head g of the piston rod 9 This piston rod g passes through an eye located in the mem- 7 her i ofthe arm 2' which arm is pivoted at 2' between lugs i fastened to the cylinder a. This arm 2' is also provided with another member 2' having a nose 5 for holding the clapper against movement through its engagement with the pin e on sa1d bar 6. A spring 5 tends to maintain the said arm in its normal position. In otherv respects this form of my device is the same as shown and descrbedv with regard to Figs. 1, 2,'and 3. This form of my invention operates as follows: The piston .rod is drawn out in the same manner as hereinbefore described, until the scale thereon indicates the length of time it is desired to have elapse until the alarm issounded. This drawing out of the piston causes the rack f to move with it and to rotate the pinion e to wind u the bell he spring, the pawl a simply rides over the teeth of the ratchet a so that the bar e is stationary while .the spring is wound. After the piston rod has been drawn out the required distance, it is released and immediately be- 10 gins to return to the cylinder in the same 3 manner as described in regard to Fi s. 1, 2, and 3. As the piston and piston To; return to the cylinder the projection g is withthus leaving the sa1d rack in its outer posi- 1 tion. As soon as the head 9 engages the arm 5 and swings said arm on its pivot i the nose 6 is withdrawn from en agement with the pin e of the bar e an permits the spring to unwind and to operate the hammer which also causes the rack f to return to its initial position. The user is thus informed that the predetermined period of time has assed. A

It is to e understood that any bell mechanism suitable for the urpose may be used in place of the one I ave shown and described.

I claim 1. In a time controlled apparatus, the combination of a c linder; a iston arranged to move therein y graduaily displacing the contents of the cylinder; a graduated rod on the piston; a device for-engaging the rod to 125 hold it temporarily in its set position; a trip lever carried b the cylinder; and means for trippin said ever controlled by' the move.- ment 0 the piston.

2. In a time controlled apparatus, the com- 0 bination of a cylinder; a istofl arranged to move therein by gradualy displacing the contents of the cylinder; a graduated rod on the piston; a device for engaging the rod to hold it temporarily in its set position; a trip lever carried by the cylinder; means for tripping said lever controlled by the move-' ment of the piston; and means associated with said lever for tilting it upward when it is released.

3. A time controlled mechanism compris ing a cylinder, a piston movable therein, a hook pivotally carried by said cylinder, a carriersupported by said hook, a latch for maintaining said hook in its operative position, means secured to said piston for releasing said latch to permit said hook to return to its initial position, after a predetermined period of time has ela sed, and means connected with said hoo for re movement of said hook as it returns to its initial position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ARTHUR HAMMERSTEIN.

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