US929746A - Cleaning device. - Google Patents

Description

P, AI BAYLES sin A. U. HBN.

CLEANING DEVGE.

APPLEUATLQN ULEB 14u25, 190g.

Patented Aug. 3, 1909.

UNITED ensures-- PATENT OFFICE.v

PATRICK A. BAYLESS ANI) ARTI] UR (l, IllllN, GF OKLAHOMA, OKLAHOMA.

. CLEANING DEVICE.

Specification ofy Letters Patent.

Patented Aug. 3, 1909.

Application filed May 25, 1903. Serial N0. 434,832.

To dll wtor/L fit may concer-n: l

lle it known that; we, lxriucn A. Baumes yand Airman li':1x,citizens ot' the United 'ntorc particularly to one cepccially adapted for use in connection with an automatic or pneumatically operatori piano or :similariti- .etrunicntfor cleaning tht` air tubos and other parts of the same.

The object of the invention is to provide a simple, prauzticalY and ctlicicnt cleaning device of this character which may be in the form of an attachment. vlor ready application loan automatic piano and which may eniploy the suction pump of the instrument; to accomplish the cleaning operation.

With the aboreand other objects in View, the invention consists ot' the novel features ol construction and the conxbination and arranlfcnient of'dcvioes hereinafter fully described and claimed, and yillustrated in the lead, a clcaniim or suction tube 8,

accompanying drawings, in Which- Figure l is a. diagrammatic view illustrating the manner in which our invention iS connected to the parts of an 'automatic or pncuniatically operated musical instrument; and Fig. 2 is an enlarged sectional view through the invention.

vln the drawings l represents the suction pump of an automatic or pi'icumaticully operated piano, 2 representa its governing bell owe, represents the main suction pipe between the pump and bellowsand 4 represents the tracker board of such piano. Said lgoverning bellows is connected to the vacuum o1' suction pump and the wind chest of. the pianoVto which wind chest; all of the pneunmticel are attached. l/Vhen the piano is not playing none of the pneumatici; will he working and said governing bellows 2 will keep a uniform vacuum in the Wind chest. The above parte are conventionally illustrated since they are old and well knowny and 'form no part. oi the present invention.,

In the practice ot' our invention We ar-v range a thrceway valve :i in the pipe 3 and connect` its third branch 6 to'a vacuum chamber rand dust. collector 7 'from Which The valve ie'herc shown in the lorntot a rotary plug having a T-.Qhapcd duct or passage E) and provided with a suitable operating handh` to which when turned in one position causes the cross portion ot' thc T-shapcd pasA sage lo register with thc two acctionr7 or branchesI of the main pipe to afford 'I'rec conminuit-'ation between thi` pump i andthe bellowsA the third branch f5 ot' the '.alve being closed by the solid portion ol thc plugr. ll'hcu said handle is given a quarter turn the cross portion ol the passant il brought into connnuuication with the branch pipe ii and the third branch ot .ad passage l is brought into rc;q eter with that acction or branch' of the pipe l which leads to the pu'inp 1 thereby throwing thc latter in communication with thc vacuum chamber and dust collector T.

'lhe vacuum chamber and dust collet-tor T may be arranged at` any suitable point wit-hin the piano or inetrunient and nia \I bc ofany Suitable form and construction. The pipes; or tubes,l (i and Si are connected `to it` at opposite pointei and arranged within it. he tween such points is a suitable screen 1l which Serves,I to prevent' the duet` from pai-ising to the pump. As illustrated` said screen is composed of fabric arranged upon a coil spring 12 which serves to hold it extended and in close contact with the wall ot the chamber or casing Timmediately above 'an inwardlyprojecting stop tlangc or :shoulder 13 arranged Within the same, as'julearly shown in Fig. 2. The vacuum chaiulafr and dust collector 7 is provided with a removable cover 14 to permit. the dirt and dust to bc rcinoved from the Same' and it'. is also provided with a' safety or regulating valve l5. The valve 15 is designed to prevent injury to the suction pump by admitting air into said chamber lin the event. that the tube 8 becomes stopped up, and while it may be'ot any suitable form and construction and arranged at` any desired point. we preferably locate it in the cover 14 and construct it'of a. plate or disk covered with rubber, leather, or thc like 16 and fixed upon a sliding stein 17 which projects through a valve opening 1H in the cover and is slidable in an arched `cross bar 19 arranged over Said valve openV` ing. The projecting end of the valve` in screw threaded to receive an adjusting.r nut '20 and arranged upon. the stem between the nut and the-guide or cross bar 1E) is a coil Spring 2l which serves tohold the valve -tion, we preferably make it as illustrated so seated. The tension of the spring may be regulated by the nut so as to control the suction within the chamber 7 The cover 14 for said chamber is air tight and while it may be of any suitable form and constructhat it will be frictionally'retained in an opening in said chamber or casing;I 7. The suction tube 8 is )referably llexible and has one end connected to a nipple 22 projecting from the chamber 7 and its other or free end may be suitably shaped so that it can be passed over the tracker board 4 or other parts of the instrument which are to be cleaned.

In operation, when it is desired to clean the air tubes leading from the tracker bar -t of the piano, or any other parts of the latter, the handle l() is o erated to turn 'the valve to cut oit' the bel ows 2 and to throw the vacuum chamberand dust collector T in communication with the suction pump l. The instrument is then operated so that the pump will suck air through the tube 8, the chamber 7 the pipe the -valve 5, and the branch of the )ipe 3 leading' to the pump. The mouth, or grec end of tlie'tube 8 is then passed over the tracker bar to clean the latter and to suck the dirt from the tubes in communication with the openings in the tracker har. After the instrument iscleaned, the valve 5 is turned to its 'normal position to cnt out the chamber T to throwl the puuip into communication with the bellows.

practical, convenient and effective means for cleaning a pneuinatically operated piano or analogous machine. It may be readily applied to the piano and enables the suction pump of the attei' to perform the cleaning operation. It will occupy but little space within the instrument and when not in use does not in any wa affect the operation of the Same. By eniplbying the .suction pump ofthe instrument, a steady suction is obtained through the cleaning tube 8 so that the eleanin will be effectively done.

Having t us described our invention what we claim is;

In a device of the character described, the combination of a combined vacuum chamber and dust collector having an opening at one end and a shoulder within the same inleijmediate its ends, an air tight closure for the opening, a fabric screen, a coil spring` ranged upon the screen and adapted to hold it againsttliewvalls of the chamber or collector and against said shoulder, a flexible suction tube connected to the chamber or collector on one side of the screen and an air exhaust pipe connected to the chamber or collector upon the other side of said screen.

In testimony whereof we hereunto aiix our signatures in the presence of two wit# nesses.

Witnesses: l

From the foregoing; it will be seen that our invention provides an exceedingly simple, i

` W. A. lllAiizus, J. A. liiANiri.

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