US1114421A - Pneumatic piano-player. - Google Patents

Description

F. W. WINTER.

PNEUMATIC PIANO PLAYER.

11221101111011 FILED D150. 26, 1911.

1], 1 1 4,42 1 Patented 001. 20, 1911 2 SHEETSSHEET 1.

.34 21 //,V/ V I 1 J,

30 1 l/ 4/ H\ L 5 INVENTOR A Home rHE NORRIS PETERS 60., FHOTO LITHO.. WASHINGTONv D. C.

P. W. WINTER.

PNEUMATIC PIANO PLAYER.

APPLIOATION FILED mo. 26, 1911.

1 1 1 4,42 1 Patented Oct. 20, 1914.

2 SHEETS-SHEET 2.

A l/arney THE NORRIS PETERS C0 PHUTO-LITH-Z, WASHINGTON n c.

FREDERICK 'W. WINTER, OE @All FRANCISCO, GALIFORTIA.

PNEUJYIATI PIANO-PLAYER.

Speeif Application filed lieceniber 26, 1911.

ieation of Letters Patent.

Patented Get. 2c, llid. Serial No. 687,635.

To all who-m may concern Be it known that l, FREDERICK /V. l VIN- Tnn, a citizen of the United States of America, and resident of San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Pneumatic Piano- Players, of which the following is a specification.

This invention relates to certain new and useful improvements in pneumatic players and more particularly to the construction of the pneumatics and the chest work for the same.

The present invention has among others to provide a cheapened construction, to provide the primary and secondary valves on the same plate, as well as the communication bet een the same, all within the minim .111 amount of space. I aim also at improvements in the details of construction whereby the cost and labor of manufacture is reduced to a minimum, and yet insuring the utmost perfection in operation. Each pneumatic is fas tened independently to the chest by means such as screws, permitting of its ready refor its objects simplified and mova-l and the metal member may be cast in one single piece and adapted to serve with the plurality of oneumatics throughout the width of the player.

Other, objects and advantages of the invention will hereinafter appear and the novel features thereof will be particularly pointed out in the a pended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specilicat n, and in which- Figure 1 is a detail in vertical section through a tier of pnemnatics embodying my present improvemenls. Fig. 9 is a top plan with a portion broken away. Fig. 3 is a vertical section with parts in elevation.

Like numerals of reference indicate like parts throughout the dil erent views.

Referring to the drawings, 1 designates the movable men'ibcr of the power pneumatic. it is provided upon its under side with the projection P27 h ving the elongated portion 3 within which is received the button l carried by the threaded end 5 of the abstract 6 for an obvious purpose.

7 is the flexible connection between the movable member 1 and the rigid member 8 f the pneumatic. The plate or stationary member 8 or the rigid half of the'power pneumatic is recessed or chambered, as at 9 and 10, and the member 21 soon to be described, is recessed or ch aznbered, as seen at 9 and 10 in Fig. 1, and the opposed recesses of the members 8 the primary and secondary diaphragm chambers, and these chambers contain the secondary and primary diaphragms 11 and 12 respectively. as seen clearly in Fig. 1. it also formed with a port or passage 13 and with a ins-sage or port lei, which latter communicates with the end passage 15 which. comnninicates with the connection 16, which, by means of the flexible tube 17, is designed for connection with the tracker board, not shown. This stationary or rigid member of the pneumatic is provided in its with a passage .18 formed by saw ke f, and when covering the pneumatic, this cut or passage is sealed with the rubber covering. This forms a simple and efficient way of connecting the secondary diaphragm with the primary valve, the pass go 18 connnunieating with the valve passage or cored out part 19. This cored out part communicates with a cored out part 20 in the metallic member 21, soon to be described, and allows of inflation and deflation of t is secondary diaphragm.

21 is the metallic casting having a vertical passage in. which is disposed the primary valve 23 s iting on the sea 24;. 25 is a vent in the end wall of this casting, 26 being a set screw or analogous removable device, he removal of which permits of rear-.y cleaning of this vent or bleed. The casting 521 is provided with a seat 2'? for the secondary valve 28 and with a passage 29 communicating with the passage 13 in the stationary or rigid member of the pneumatic, all as seen clearly in Fig. 1. R will. be understood that this vent or bleed 25 is for the purpose of releasing the primary.

30 is the vaciunn chest or chamber formed within the casting 21 and having communication with the primary and secondary diaphragm chambers 9 and 10*, by means of the ports or passages 31 and 32, as also seen clearly in l ig. 1.

is the in iation or deflation passage communicating with the port or passage 29.

In practice, the member 21 is cast in one piece and all the work necessary to finish and 21 constitute the same will be to counterbore the valve holes, also making the valve seats with the same operation. The passages 19 and 20 and as well as the vacuum chest or chamber require no special attention further than to see that the same are free from obstruction.

As the general arrangement of the parts in the player is that which is well known in the art, a description of the other parts of the player is not necessary. The usual connections are to be made and the operation is substantially the same as usual in tiis class of devices, the novelty in this instance residing principally in the particular construction of the pneumatic and chest, as her 'ibeiore set forth.

It will also be understood that each pneumatic is fastened independently, to the chest by suitable means, as the screws 3%, seen in Figs. 2 and 3.

From the above, it will be seen that l have devised a simple and eilicient construction for the purpose specified and while the structural embodiment of the invention as hereinbei'ore disclosed is what I at the present time consider preferable, it is evident that the same is subject to changes, variations and modifications in details, proportions of parts, etc., without departing from the spirit of the invention or sacrificing any of its advantages. 1, therefore, do not intend to restrict myself to the particular construction and arrangement of parts as hereinbei ore set forth, but reserve the right to make such changes, varia ions and modifications as come properly within the scope of the protection prayed.

What s claimed as new i:-

1. In an automatic piano player, a chest member extending throughout the Width oi a player, and carrying the primary and secondary valves and formed with a vacuum chamber, and stationary members of pneumatics secured thereto and having primary and secondary diaphragm recesses, and diaphragms adjacent said valves for actuating the latter, and a passage leading from the secondary diaphragm recess, said primary valve controlling said passage.

2. in an automatic piano player, a ches. member extending throughout the width of a player and carrying the primary and secondary valves and formed with a vacuum chamber, and stationary members 01. pneuma'tics secured thereto and having primary and secondary diaphragm recesses, and diaphragms adjacent said valves for actuating the latter, and a passage leading from the secondary diaphragm recess, said primary valve controlling said passage, said vacuum chamber extending throughout the width of said member and serving with all of said pneumatics.

3. A stationary member of a power pneumatic having primary and secondary diaphragm recesses having diaphragms therein, said recesses formin diaphragm chambers, diaphragms in said chambers for actuating the valves, passage leading from the secondary diaphragm chamber and a vertical passage communicating therewith, a plate secured upon said stationary member and having a passage in communication with the vertical passage of said stationary memb r, and primary and secondary valves in said plate adjacent the diaphragm, said primary valve controlling the passage in said plate,

aid plate having a vacuum chamber QX- tendin throughout the width of a player.

A stationary member of a power pneumatic having I-rimary and secondary diaphragm recesses having diaphragms therein, said recesses forming diaphragm chambers, diaphragm-s in said'chambers for actuating the valves, a passage leading from he secondary diaphragm chamber and vertical passage communicating therewith, a plate secured pon said stationary member and having passage in communication with the vertical passage of aid stationary member, and prii .ry and secondary valves in said plate adjacent the diaphragm, said primary valve controlling the passage in said plate, said plate having a vacuum chamber extending throughout the width ot a player and communicating with said diaphragm chambers.

5. A stationary member of a power pneumatic having primary and second ry diaphragm recesses having diaphragms therein, said recesses forming diaphragm chambers, diaphragms in said chambers for ac tuating the valve, a passage leading from the secondary diaphragm chamber and a vertical passage comn'iunicating therewith, a plate secured upon said stationary member and having a passage in communication with the vertical passage of said stationary member, and primary and secondi y valves in said plate adjacent the diaphragm, said primary valve controlling the pas age in said plate, said plate having a vacuum chamber extending throughout the width of player and communicating with said diaphragm chambers, and a vent from the'primary diaphragm chamber.

Signed by me at San Francisco, California, this 19th day of December 1911.

ERICK VJ. lVlllTlEll.

vg'yru id 11111:

lVitnesses E. l-i. Bonn, D. B. lticinmns.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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