US1538092A - Valve - Google Patents

Description

Mjiy 19, '1 925.

H. COHEN, NOW BY JUDICIAL. CHANGE OF NAME H. C ZOLE VALVE Filed June 21 1922 E-Sheet's-Bheei': I

2 I 3145mm; I

May 19, 1925.-

I H. COHEN NOW BY JUDICIAL CIHANC-IuE OF NAME. H. COLE VALVE Filed June 21 3 z Shee ts-Sheet. 2-

c awim entozf.

May 19, 1925.

H. COHEN, NOW BY JUDICIAL VALVE Filed June 21, 1922 3 Sheets-Sheet CHANGE OF NAME H. COLE Patented May 19, 1925.

I A 1 8 09 UNITED: STATES PATENT OFF-ICE.

HIIBCBRT CbHEN (NOW BY JUDICIAL CHANGE OF HERBERT COLE), OF NEW YORK,- N. Y.

VALVE.

Application filed June 21, 19 2. Serial No. 569,798. I

To allwhomitmayconcem:

Be it known that I, HERBERT COHEN, a citizen of the United States, and a resident of the borough of Manhattan, in the city and State of New York, have invented certain new and useful Improvements in Valves, of which the following, is a speci- "fication.

The invention relates to valves adapted to control the passage of gas or other fluids, and particularly to that type of such valves which is adapted-to be operated byelectromagnetic means. The object of the invention is to provide a simple, cheap, and efficient device of the kind mentioned, which shall be positive. in action, and not liable to easily get out of order.

' The invention consists in the novel construction, arrangement and combination of various elements and parts, as set forth in the claims hereof, one embodiment of which is shown in the accompanying drawings and described in this specification.

In the said drawings, 1

Fig. 1 is a front elevation of a valve constructed according to myinvention;

Fig. 2 is a side view of the same;

Fig. 3 is a vertical section along the line 33 of Fig. 1;

Fig. 4 is a detail view showing the plunger forming part of the apparatus and hereinafter more fully described; and

Fig. 5 is a view showing a modification of a portion of the invention when used with alternating current,

Fig. 6 is a view showing in a diagrammatic way the relation of the valve hereinafter described with an operative mechanism and a source of power therefor.

One of the purposes for which my improved valve is intended to be used, is as an automatic gas-control for a burner used in connection with a printing press, for the purpose of removing static electricity from the paper passing through the press and also for drying the ink thereon. It is well known that when paper is operated upon in a printing press and thereby subjected to friction, particularly under dry and cold atmospheric conditions, it becomes charged with static electricity, which causes the sheets of paper-to adhere together as they are delivered from the press, thus causing offsetting or smutting of the ink thereon, 'and it is also well known that the momentary application of a gas or other ,flame to the paper quickly dissipates the static charge thereon, the'he of the flame also tending to dry the moist ink impressed upon the paper; it is not necessary that the flame actually touch the paper, as the current of hot air arising from the flame islikewise efiicient, though in a less degree.

In order to accomplish this purpose,it is customary to provide in connection with a printing press, a gas pipe or burner extending transversely across the press, perforated with a number of openings to permit the egress of gas, which when lighted-forms a series of .small flames. This burner is located' so that the row or series of small flames is sufficiently near to the paper coming from the press to heat the same and at least partially dry the ink thereon, at the same time removnig any static electricity withwhich the paper may be charged, and in some cases the burner may be so adjusted as to permit the flames to actually touch the paper-as it passes out of the press.

It is obvious, however, that even the application of the heated air from the flames of the burner, and much more the application of the flames themselves, to the paper, must be only momentary, otherwise the paper will catch'fire. In the ordinary operation of a printing press, the paper issues therefrom very rapidly, and sweeps across the flames of the burner at such a high rate of speed that it is impossible for any fire 'to result. But should any accidental cause result in the stopping of the operation of the press and of the motion of the paper,

while a sheet of paper is over the gas flame,

the paper would certainly catch fire, and as even a small fire in a printing establishment is apt to rapidly extend owing to the presence of benzine, paper waste, and other highly inflammable material, the use of devices of the kind described in such establishments is attached with much danger, and is prohibited by the. insurance companies,

'unless some absolutely positive automatic means are provided for immediately shutting off the flow of gas whenever the operation of the press ceases. In my invention I have provided such an absolutely positive automatic means, and the invention is primarily intended to be used in connection with such apparatus, although I do not limit myself to any such use, as it is ohvious that the invention is capable of being used in many other ways and in connection with various other types of apparatus.

In carr ing my invention into effect in the embo iinent thereof which I have se-. lected for the purpose of illustration in the accompanying drawings and description 'in' this specification, I provide a gas valve comprising a solenoid, a plunger controlled by said solenoid, and having a truncated-conical lower end, and a socket in the upper end of ages pipe into which the lower end of the "lunger seats itself for the purpose of chec ting the flow-,(fiv gas. Thewinding of thesolenoid is either in series or parallel with the power circuit which operates the printing press or other mechanism in connection with which the valve is employed. While the '-curr ent is passing to the motor operating the press, current is also passing to the solenoid forming part of my improved 'valve, and the'plunger is thereby drawn upward, {opening the v'al've and allowing gas to pass to the burner, but upon current ceasing to pass to the power motor of the press, it also "nec'essa'r'ily ceases to pass through the solenoid, thus allowing the plunger to drop and shut off the passage of gas to the burne'r, and 'thereb exti'nguishin the flames thereof, except, 1 f.desired, the ame offa. sniall pilot light, which may be supplied by a 'by the automatic out- It will be seen that by this means afnfabsolutely positive flame-control is rovided, which renders it impossible 'for t 'e paper on the pressfto catch fire when the press for any reason ceases operation. Tl1e details of the mechanism conip'risingm'y invention 'are as follows: I provide a- 'framecomprising arectangular U-shaiped prises a gasp'assage or in. any suitable manner.

Jnember 11, the open upper end of which is adapted to bebridgedby'a horizontal member 12 which maybe "secured by screws 13 v Within this frame is located a solenoid 'of'a'ny suitable construction comprisin coils 14 wound upon a'spool in the or inary or any suitable manner. A gas-supply pipe 15 enters througlf'a'n opening in the plate 12 and extends down "into the up er'en d of the bore.

of 'the'solenoid, being ormed there ii 1to"a as-tight joint.

To the bottom of the frame 11 is secured a 'cup- 'inember 16, perforated as to be I in communication with the gas passage or bore 17 of the solenoid and constituting a gas'chamber (see Fig, 3), and, clos'ed'atthe bottom by the valve-sheet'nieinber 18 which is screwed into the same and whlchcom- 'Loc-ated inside of the apparatus is a plunger, which is shown more: particularly in Fig. 4. This plunger comprises an upper cylinder 21 .which slides in'the bore 17 of lay-pass not affectedthe "'sdle'noid. This cylinder is "mainly of magnetic material but has 'a iidn ma'gnetic ring 22 at its upper end, the function of WhlOhiStQ prevent the sticking of the plungerto the pipe-1.5 due to residual magnetism. Secured to the lower end of the plunger is a member 23 of non-magnetic material having an enlarged up er portion and a smalle'r lower po'rt'idn, the latter being adapted to enter the gas passa e of the member 18. The upper and inter "portionsa're conneeted by a conical pdrtions i ,wihic h 1 is adapted to be seated in a'cdrrespondingconical or flaring opening in the upper part of the member 18, as will be best seen in 3. In the upper portion of the member'as are openings '25 which "are adapted to ermit gas to flow out into thegas cha'b'e'r 19 from the bore of "the member 21. The bO're 'of'the member '23 'is'closed below "the openings '25, so that no gas can pass into the'lower portion of this 'mer'n'be'r. I I er portion, however, is provided with open- The io'win'gs '26, which, when the plunger is -raised sothat the conical valve poition 24 is unseated and so that the gas in the chain'lie'r 19 can flow down and out therefrom, said gas passes in through the openings 26 into the bore of "the lower 'part of the member 23 and thence out through 'theopen'ln'g "20 (see Fig. 3).

In the gas chamber 19 is a'n'o ening' or vent '27 adapted to be connected ya suitable by-pass 33, t he opening in Wh1( 3ll 1S controlled {by a regulating screw 34, with a pilot light which may 'be kept,h urnin'g oontinuou 1y, o'r"do'w n. I I H, J I

To the upper end ofthe gas pipe '15 "is secureda 'ga-s cook 28 of the usual or any suitable construction, provided with an tactuating lever 29 secured by a set-screw '30 whether the plunger 21 is up w and which may if'desired "be provided with .belocateil a gaiize"32 which serves to prevent anyscales or' bther foreign substance from dropping down and becoming lodged in the conical valve-"seat in the lower part of the mechanism, thus "preventing the 'valve from fitting tightly therein and slewing "a leakage ofgas. A I

In Fig. 6 I have shown in dia'giaihniatic form the principle of' 'the association (if the valve with'an operativeihe chanismsuch for instance as a printing press, and'a' source of'power'therefor. Referringinore particularly-to said Fig. 6, the valve itself will be seen in the upper right hand corner, the reference numerals applied thereto'hav'ing been already explained. The valve is shown connected with the source of power by the conany suitable form. The motor is designated 44, hearing on its rotor shaft a pulley from which a belt 46 leads to a suitable pulley 47 on the main drive shaft 48 of the operative mechanism 49, which may be of any character suitable to be so driven, as for instance a printing press? on theshaft 48 may also be provided an idle pulley 50, and a belt-shift 51 may be provided if desired for shifting the belt from one pulley to the other.

The operation of my invention is as follows: The upper end of the gas pipe 15 is connected, through the cook 28, with a suitable source of gas supply, the lower end of the member 18 is connected by suitable piping with a gas burner, as for instance a burner used in connection with a printing press as before described for the purpose of removin static electricity from the paper and drying the ink thereon, and the by-pass 33 suitably connected with a pilot light adapted to light the said main burner. The solenoid is connected, either in series or parallel as circumstances may indicate, with the electric current which operates the motor of the printing press or other mechanism in connection with which the device is being used. Where the device is used in connection with a printing press, it will be obvious that while the current is passing the solenoid will be energized, the plunger there fore drawn up into the bore'thereof, and the gas-valve in the lower part of the a paratus opened so that gas will flow to t e main burner. Upon the stoppage of the press by accident or for any other reason, so that the paper passing therethrough becomes stationary over the gas flames in such a way that should the gase flames remain alight the paper would be set on fire, the solenoid is de-energized by the same failure of current which resulted in the stoppage of the press, and the plunger drops into place, automatically closing the valve and stopping the flow of gas into the main burner. The flow of gas into the chamber 19 is, however, not checked, and thus the pilot light is kept burning, ready to again light the main burner when the press is again set in operation, thereby energizing the solenoid.

A modified form of plunger is provided for use where an alternating current is-employed. A portion of such a plunger is shown in Fig. In this form the ring 22 of non-magnetic material is omitted, and a wire 41 of non-magnetic conducting ma-' terial is provided, the curved part seated in a groove 40, and the straight part extendingv acrossthe open end of the plunger. In a magnetic pull, does not maintain an absolutely steady pressure against its limiting stop, but is subject to a fluttering motion, producing either a humming sound or a tapping in the apparatus, according to whether the alternations are frequent or infrequent. It is the purpose of the wire 41, whichis of non-magnetic material, to obviate this annoying feature connected with the operation of the apparatus, and I have found in prac- 'tice that it satisfactorily produces the desired effect.

The advantages of my invention will be obvious from what has been above said with regard to the disadvantages heretofore met with in apparatus of this kind, and with regardto the construction and operation of the present device. One importantadvantage is that the device is adapted to o crate in a vertical position and as a par of a vertical gas supply pipe, the plunger and cut-ofi' valve being operated into the closed position by means of gravity, thus eliminating springs and similar devices as previously employed.

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

1. The combination with operative mechanism provided with an electric motor for operating the same, a source of electric 'said chamber to said fluid delivery device,

a valve located in said chamber controlling the outlet therefrom and adapted to close said outlet by gravity, a solenoid, a plunger in saidv solenoid operatively connected with said valve and adapted when said solenoid is energized to be raised and thereby -open said valve and when said solenoid is deenergized to fall by gravity and" close said valve, and an electric circuit connecting the said solenoid with said motor, so that, when said motor is operating said solenoid shall be energized and when said motor ceases to operate said solenoid shall bev de-energized.

2. The ombination with operative mechanism, a power shaft, a belt operatively connecting said power shaft with said mechani'sm, a fixed pulley and an idle pulley on said mechanism adapted to receive said belt, means adapted to shift said belt from one of said pulleys -to the other, and a fluid delivery device; of an automatic control for aid fluid delivery device comprising in combination a fluid chamber, an inlet pipe into said chamber, an outlet pipe leading from said chamber to said fiuid delivery device, a valve located in said-chamber controlling the outlet therefrom and adapted to close said outlet-by gravity, a solenoid, a plunger in said solenoid 'operatively connected with said valve and adapted when said solenoid is-energiz ed'to be raised and thereby open said,..valve"and'when said solenoid is de- 'ene rgize g l to fall by gravity and c 'lose said valve, an'electric circuit leading'to said solenoid, a source of electric energy forming 15 part of said circuit, a swltch in sald ell-cult,

fixed pulley said switch shall be closed and 20 said solenoid energized, but when said belt is running upon said idle p'ulley said switch shall be open and said solenoid de-energized. In witness whereof I have hereunto signed my name this 12th day of June, 1922.

HERBERT COHEN.

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