US690381A - Pneumatic valve-action. - Google Patents

Description

lNo. 690,38I, t Pateted Dc. 3|, BUI. f

f J. WIESEB. v

PNEUMATIG VALVE ACTIUN.'

* (Application led Apr. k1S, 1901.)

(NoModel.)

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" D *mm1 A llnrr'io ST1-arne- JOSEPll WIESER, OF

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PNEUMATlC VALl/EACTiONf.

5 seno-le NATION forming part of Letters Patent No. 690,351, dated December 'e1"', 1eo1. A f

all whom, Lt may corto-e771,.- Be it known that l, JOSEPH Winsen, a citizen of the United States ,residing in New York,

which the pneumatic valve-action is under the control of a perforated music-sheet.

The main objectof the ,present invention 1 5 is to provide a pneumatic valve-action which will respordinstantly when a perforation in the music-sheet is open to one of the passages of the tracker, 'so that the piano, organ, or other instrument will be played in proper 2o time without any hesitation.

A furtherlobject is :to render the mechan,

ism more compact.

My invention consists of a pneumatic valveaction comprisingythe combination, with the 25 main valves controlling the actuating-pneu matics, of auxiliary valves and means for actuating the main and auxiliary valyes, such means comprising tracker-passages leading, on the one hand, to the diaphragme of the 3o auxiliary valves and, on the other hand, to the diaphragme of the main Valves, whereby when vatmospheric air is permitted to pass through the perforation of the music-sheet Aand through the trackerI and tracker-tubes 5 the automatic auxiliary valves will instantly shut ott the flexible diaphragme of the main l valves from the lower suction influence,y allowing the exible diaphragms of the main valves to rise and to thereby instantly open 4o the main valves, so that the pneumatics will 'instantly operate on the actuating mechanism of the piano or other instrument, all as hereinafter described and then claimed.

-ln the accompanying drawings, Figure l is 45 a vertical transverse section through the Valve-chest and a pneumatic, the parts being in normal position and connected with a pianoactiong and Fig. 2 is a vertical longitudinal section of the valve-'chest and its contained channels B B B2,

.pplication filed April 13,1901. vSerial 'N0-'55,642- (Nomodel l parts, showing one set ot valves and the c'or- 5o' responding pneu matics in actuated-positiom Referring to the drawings, 'A indicates aA valve-chest, which is constructed offsuitable parts, so as to 'provide longitudinal suctiony which are alljin4 communi 55 cation with the main suctionpipe` C, wliich: leads to the suc'tion or exhaust chest. `(Not shown.) Above the said suction-channels B' i B'B2 is arranged a series of valve-chambers B4, which lead7 by means of ports d, to the 6oV pneumatics D, that are fixed in any suitable V manner on top of the valve-chest A. These pneumatics are connected either directly with the valvesof the soundingtubes in case the device is used in connection withan organ, or '65. each pneumatic may be connected witlija lever by means of a link e, which leverlspivoted at e to arail E and is connected atene end by means of a link E2 with the piano-action cc.

In the valve-chambers@-134 are arranged a "o number of flap-valves F, which controlthe ports f that connect -the channel B Withthe valve chambers B, and which main flapvalves F are preferably provided with lugs or projections f at the back,rupon which re'st the 7 5 f ree endsof the contiguous ilap-valvesF', that control the portsj'z, arranged under the pneumatics,and which lead to the outer air.v Nor- -mally the two valves F F' are in the position shown in Fig. l, in which position portf is 8o closed and the por-t f2 is open, so thatatmospheric air may pass through the said port f2 and ill the pneumatic D controlledL thereby. The ports fare crossed by` suitableI guidepieces f3, in which are guided the's'tems g of heads g, which rest upon the flexible diaphragms'G, the edges of which are glued 'for otherwise fastened in thewell-known manner in the suction-channel B.

Arranged below the diaphragme-G in the 9o suction-channel B and communicating with the under sides of the said flexible diaphragms by means ot' ducts t' are anumber of auxiliary automatic or flap valves Il, which ar`e normally open, so that the ducts will permit the 95 diaphragms G to be subjected to the suction/ of the channel B. These auxiliary automatic valves H rest upon stems 7i, which are guided in the stock ol the valve-chest or in anyother suitable manner between the channels B B2. Each ofsaid valve-stems h has coiled around it an actuating-spring h', which bears upon the head h2 of the valve-stem at one end and 'against the stock of the valve-chest at the other end. Each head h2 rests upon a ilexible diaphragm h3, said diaphragme h3 being arranged Within the suction-channel B2 and being subjected to suction at their under sides through the medium of duets j, which communicate by means of portsj with a suctionchannel B5 in the valve-chest. The 'porlsj are opened more or less by means of needlevalves .l for regulating the escape of air through the suction-channel B-5 and to retard or expedite the return of the diaphragme h3 into normal position after vthe pneumatic 'valve-action has been opera-ted The ducts Whenever a4 perforation in the music-sheet establishes communication between one of the tracker-tubes K and the outer air, the atmospherie air enters the branch passages 7c 7c beneath the diaphragm 70"' and, against the exhaust or suction on the upperside of the dial phragm, throws up the diaphragm into opposite direction, as shown in Fig. 2, causing the same to act upon the valve-stem head Wand to close the valve H, so that the duct z' has no communication with the suction-channe1 B.

' Y As soon as the valve II is closed, according to the operation previously described, the atmospheric pressure admitted through the passage k is fully elfective to raise the diaphragm G, causing the main valve F tobe raised, so as to open the port d ofthe pneumatictothe suction-.chamber B, therebypermilting atmospheric pressure to deflate the pneumatic D, which iu turn instantly actuates the sounding devices. The atmospheric air being shut off from the tracker tube K, the suction through the ports j will create an equilibrium above and below the diaphragm h3, causing the automatic valves Il and diaphragme to return 4to normal position.

By operating the main valves of a pneu. 'matie valve-action by means of the auxiliary automatic valves,farranged and operating as described, the main valves are enabled to'be instantly opened and closed, thereby greatly 'improving devices of this class.

`What l claim as new is- 1. In a pneumatic valveaction, the combination, with the main valves controlling the actuatiug-pneumatics, of auxiliary valves, and means for actuating the main and auxiliary valves, such means comprising trackerpassages, leading on the one hand to the diaphragms of the auxiliary valves, anden the other hand to the diaphragms 'of the main valves, substantially as set forth.

2. In a pneumatic valve-action, the combination, of a valve-chest, provided with aplurality of suetion-channels extending therethrough, valve -chambers, niais valves arrangedin said valve-chambers and adapted to control the actuation of the pneumatics, and flexible diaphragme arranged in one of "said suction-channels, for opening the main Avalves, of auxiliary valves arranged in at other of said suction-channels, lieirible dia phragms arranged in still another' of said suction-channels, foraetuating the auxiliary valves, and tracker or atmospheric-air passages,4 leading on the one hand to the under sides of the .flexible diaphragme of the main valves and directly to the said auxiliary valves, and on the other hand to the diaphragms of the auxiliary valves, substantially as set forth.

3. In a pneumatic valve-action, thecombi nation, with a valve-chest, provided with a plurality oflsuction-ehannels extending therethrough, valve chambers, main valves arranged iu the valve-cham bers and controlling the suction to the pneumatics, flexible diaphragme arranged in the uppermost of said channels` and means acted on by said diaphragme for actuating the main valves, of auxiliary valves arranged in the next following suetion-channel, flexible diaphragme ai vranged in the next 'suction channel, and adapted to actuate the auxiliary valves, and tracker or atmosphericair passages, leading on the one hand to the under sides of the flexible diaphragms of the main valves and to the auxiliary valves, and on the other handto thediaphragrns of the auxiliary valves, substantially as set forth.

In testimony that I claim the foregoing as my invention l have signed'my namein presence ol two subscribing witnesses.

.Tosi-BPH Wissen. Witnesses:

PAUL GonrsL, Gmo. L, WiIEsLocK.

IOC

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