US2662440A

US2662440A - Single reed cell block

Info

Publication number: US2662440A
Application number: US245917A
Authority: US
Inventors: Gasero Charles De
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-09-10
Filing date: 1951-09-10
Publication date: 1953-12-15
Anticipated expiration: 1970-12-15

Description

Dec. 15, 1953 c. DE GASERO SINGLE REED CELL BLOCK Filed Sept. 10, 1951 3 Sheets-Sheet l FIGl FIGS

INVENTOR. CHARLE 5 DE GASERO.

ATTORNEY Dec. 15, 1953 c. DE GASERO SINGLE REED CELL BLOCK Filed Sept. 10, 1951 3 Sheets-Sheet 2 FIGES FIG7 , INVENTOR. CHARLES DE GASERQ BY M M4 5 Sheets-Sheet 3 Filed Sept. 10, 1951 FIGZZ INVENTOR;

CHARLES DE GASERO, BY 4 zrro g Patented Dec. 15, 1953 UNITED STATES PATENT OFFICE 2,662,440 SINGLE REED CELL BLOCK Charles De Gasero, New Hyde Park, N. Y.

Application September 10, 1951,

Serial No. 245,917

4 Claims. (Cl. 84-376) such as, due to small cells, difand considerable expense in of parts.

inferior tonal qualities ficulties in tuning, the multiplication In my invention the reed holder or block is partitioned oii into a plurality of cells or tonal chambers, in each of which is contained a plate single reed or tongue.

drying out, such as occurs with leather valves, and they are adapted to close without slapping noises.

Another noteworthy feature of the invention is the adjusting means whereby tuning of the reed is simplified through regulation of the volume and air passing through the cell or tonal chamber to vibrate the reed. This comprises suitable means such as a plate that may be adjusted to enlarge or diminish either an intake or an escape valve opening of a cell, as the case may re quire, so as to of the cell.

A further advantage of this invention is the increased size of the cells allowed by the single reed plate, whereby better tone and musical qualities are effected. Because of the larger cell size the single reed, where desired, may be made wider to produce the deeper tones.

control the stream of air in or out o ,va ve and cell block arrangement in musical instruments of the accordion type.

Another object of the invention is a single reed, valve and cell block arrangement together with adjusting means for controlling the stream of air over the reed of a cell to flow in a single direction accompanying of the invention In the drawings:

Fig. 1 is a side elevational view of one of the long sides of the cell block, broken away in part.

Fig. 2 is a view of the cell block opposed to that shown in Fig. 1.

Fig. 3 is a cross section of the cell block taken on the line 33 of Fig. 1.

Fig. 4 is a perspective view of a reed plate.

Fig. 5 is a view of the reed plate opposed to that shown in Fig. 4.

Fig. 6 is a plan view of cell block broken away in part.

Fig. 7 is a bottom plan view of the bottom frame of the cell block broken away in part.

the top frame of the Fig. 8 is a section of the accordion framing intended to show the association of the cell block with the accordion.

Fig. 9 is a detail perspective view of an enlarged scale of a frame containing the intake valves.

Fig. 10 is a vertical section taken midway of Fig. 9.

Fig. 11 is a detail perspective view on an enlarged scale of a frame containing the escape valves.

Fig. 12 is a view of a typical valve used in the valve frames of Figs. 9 and 11.

In describing the invention in detail reference is directed to the several drawings, wherein Fig. 8 there is a portion of a conventional frame end or wall I of an accordion to which is attached a conventional bellows 2. Mounted in conventional manner on the frame end is a cell block 3 embodying my invention. The cell block comprises a pair of end walls 4 mounted upon a base member 5, and includes a top frame member 6 spanning the end walls. A successive series of thin walls 1 partition the cell block off into a series of cells generally designated 8. Each cell opens at 9 through the top frame and at Ill through the base frame.

The top openings 9 are closed over by a cover I i which is common to the several cell top openings. The cover is secured over the cell top openings by proper means, such as latches l2 at each end of the cell block adapted to allow for ready removal of the cover from the block when required. The undersurface of the cover is provided with a suitable lining iii of a material adequate to insure an airtight sealing of the cover over the cell top openings. Here the lining material is of soft leather.

A reed plate id is sealed within each cell in a suitable manner, preferably by wax l5. Wax is used for this purpose as it serves as a cushion and also allows for ready removal of the reed plate when desired. The reed plate is of light material; such as, aluminum, and it is provided with a single slot in the form of a rectangular aperture it. On the reed plate is a free reed 18, also called a tongue, which is firmly secured at one end to the plate by a rivet l9. The free end of the reed is adapted to move or vibrate within slot 16. When at rest the reed free end is slightly above of air flowing over it catches and causes it to vibrate. Reed plate I4 is substantially the width of the cell and located about midway therein in a slightly inclined position.

Conventional means is provided for securing the cell block to the frame end I of the accordion. This means includes the extended endsifl of the base member 5, which ends are removably securable in suitable receptacles 2|, of which one is shown, on the frame end l. The frame end is provided with suitable finger valves 22 Each finger valve here is adapted to control an opening in the frame end i which communicates with the base openings ill of two adjacent cells 8 of the cell block, so arranged that opening of a finger valve will allow a flow of air into or from both cells, depending upon whether the bellows are compressed or expanded, to produce a tone from each cell. It is conventional for purposes of added volume, quality and blending of tones to have more than one reed simultaneously vibrating for each note produced,

To control a how of air in a single direction over a reed to cause it to vibrate within its cell whether the bellows are compressed or expanded,

the aperture, so that a stream I is controlled by a two sets of valves are provided for this purpose for each cell, one a set of intake valves, the other a set of escape valves.

The intake valves are carried by a frame 25, and the escape valves are carried by another frame 25. Frame closes over the one end of a cell, while frame 26 closes over the opposite end of the cell. To allow for the valve frames each cell opens as at 24 through to the opposite sides of the cell block. A frame 25 carrying the intake valves is sealed in the one end of the cell by a proper material to allow for ready removal when desired; such as wax, while a frame 26 carrying the escape valves is similarly sealed in the opposite end of the cell. Intake frame 25 has an elongated wall 217 near the top of which is an aperture or slot 28 that opens into the cell. Slot 28 is controlled by a valve member 29 that opens inwardly into the cell chamber when the bellows are compressed and which is adapted to close over the slot when the bellows are expanded. Valve 29 is fiat and operates as a hinge. For this effect it is provided with a pintle 30 which pivots at its ends in side fra e flanges 3 1. Valve 29 allows an intake of air into the reed cell when the bellows are compressed.

A substantial cubical extension 32 on the inner side of the lower end of frame 25 extends into the base portion of the cell. Extension 32 is provided with front, back and side walls 33, but is open in its upper and lower ends 34. A flange 35 about the inner walls of extension 32 serves as a seat for a flat valve member 36 which is adapted to open inwardly into the cell when the bellows are expanded allowing an intake of air to the cell from an open related finger valve. Valve 36 is adapted to close upon its seat when the bellows are compressed. This Valve also operates in hinge fashion, and is similarly provided with a pintle 30 which pivots at its ends in the side walls 33 of extension 32.

The escape valve frame 26 also has an elongated wall Sl near the top of which is an apertureor slot 38 that opens into the cell. Slot 38 on the outside of the frame wall and which is adapted to close over slot 33 when the bellows are compressed, and to open outwardly or move away from the slot when the bellows are expanded. Valve 39 allows an escape of air from the cell into the bellows when the bellows are expanded. This valve also operates in hinge fashion and is provided with a pintle 3!] which pivots at its ends in outward extensions 49 of the frame wall.

On the inner side of escape valve frame 26 at its lower end is an angular extension ill inclined downward. Extension 4! is provided with a rectangular slot 42 about which is a marginal flange 43. Flange d3 acts as a seat for a flat valve member 45. Valve member G5 is adapted to close over slot 2 to prevent an intake of air from an open finger valve when the bellows are expanded, and to uncover the slot to allow an escape of air from the cell when the bellows are compressed.

It is to be noted that the reed plate is located in an inclined position in the cell and that the reed or tongue 58 is always on the side of the cell facing the intake valves. The reed plate divides its cell into two

compartments

48, 51. The

intake valves

29 and 36 control the admission of air to the compartment 56 on the reed side of the plate to vibrate the reed. The

escape valves

39 and 45 of air is caused to flow in a single direction over bellows are compressed or expanded.

The frames 25 Wax [5 in their respective end openings of a cell in such manner that air does not enter or escape from the cell except by way of the valves, and the by wax within its cell that air does not pass from one compartment of the cell to the other except over the reed,

'The manner of operation of the valves in any cell of the cell block is as follows: When the bellows are expanded air is drawn through any of thefinger valves that may be open. Air flowing through a finger valve 22 forces open the bottom intake valve 36 of a related cell to admit a stream of air to the reed compartment side 45 of the cell, and simultaneously closes the bottom escape valve 45 communicating with the other compartment of the cell. Upon entering compartment 48 producing a sound, and in doing so passes on over the reed to the escape compartment 41 of the cell. After passing over into the escape compartment the air escapes through the into the bellows. The pressure of the air stream in flowing over the vibrating reed is baiiled and necessarily reduced, and due to the greater counter air pressure being forced against the bottom escape valve 45 from the finger valve, the air stream in escaping from the cell necessarily prefers the side escape valve 39.

Now, when the bellows are compressed and the finger valve of v a particular cell is opened, a stream of air from the bellows is blown against valve 39 to close it and simul- 29 to open 1t and enter the reed side 46 of the In entering cell compartment 45 the air and passes over the reed to the escape compartment 4'! of the cell. In compartment 47 the air stream forces open the bottom escape valve 45 and escapes to the outside of the accordion through the open finger valve. is necessarily selected by the escaping air stream in preference to the side escape valve 39 due to the greater counter air pressure holding valve 39 shut.

It is to be noted that the valve seats in

frames

25, 26 are slightly lipped or turned up, as at 48. This construction is desired as it serves to eliminate slapping noises of the valves when closing which would otherwise occur were the valves when closing to strike fiat surfaces.

The intake and escape valves are of novel construction (Fig. 12). They are formed of material, preferably rubber, that is not given to curling or drying out, such as occurs with the leather valves conventionally used in double reed instruments. The pintles 39 are of firm material as metal, and are an integral part of the valves. They are moulded in the valve when the valve is formed.

Another feature of the invention is means to control the as that emitted when the bellows are compressed. This control comprises means for regulating the size of the side intake and the side escape valves side escape valve 39 r 36 shut, vibrates Escape valve 45 to those of the other, the

29, 39. For this purpose each cell includes a fan plate 49 fixed to a pivot 50 above the side intake valve 29 on the outside of frame 25, and a similar fan plate 5! fixed to a pivot 52 above the side produced by the bellows on expanding is the same as that produced on compressing the bellows.

Each finger valve preferably controls a pair of cells, and while the intake valve frames 25 of each cell may be located on the same side ments of one cell of the pair reversed in position true locale of the sound is obtained.

While I have described ferred form of my invention, it is my Intent, however, to claim not only the form of the invention the appended claims.

I claim:

1. In an accordion including bellows, a cell block opposite side of each cell carrying a pair of air escape valves, so constructed and arranged whereby when the bellows are expanded air is drawn into a cell through one of the intake valves and in vibrating the free reed escapes from the cell into the bellows through one of the escape valves, and when the bellows are compressed air is forced into the cell through the other of the intake valves and in vibrating the free reed escapes from the cell through the other of the escape valves, a base frame member, a pair of end walls mounted upon the base frame member, a top frame member spanning the end walls and including a series of openings registering with each cell of the block, an airtight cover common to the several openings of the top frame member, and latching means removably securing the cover over the top frame member.

3. In an accordian including bellows, a cell block comprising a plurality of cells one adjacent the other and each the full width of the cell block, a reed plate carrying a single free reed within each cell, an individual frame member removably sealed in one side of each cell carrying a pair of air intake valves, and another individual frame member removably sealed in the opposite side of each cell carrying a pair of air escape valves, so constructed and arranged whereby when the bellows are expanded air is drawn into a, cell through one of the intake valves and in vibrating the free reed escapes from the cell into the bellows through one of the escape valves, and when the bellows are compressed air is forced into the cell through the other of the intake valves and in vibrating the free reed escapes from the cell through the other of the escape valves, a base frame member, a pair of end walls mounted upon the base frame member, a top frame member spanning the end walls and including a series of openings registering with each cell of the block, a cover common to the several openings of the top frame member, a lining of leather on the underside of the cover intermediately of the top :frame member and the cover, and latching means removably securing the cover over the top frame member.

4. In an accordion including bellows, a cell block comprising a plurality of cells one adjacent the other and each the full width of the cell block, a reed plate carrying a single free reed within each cell, an individual frame member removably sealed in one side of each cell carrying a pair of air intake valves, and another individual frame member removably sealed in the opposite side of each cell carrying a pair of air escape valves, so constructed and arranged whereby when the bellows are expanded air is drawn into a cell through one of the intake valves and in vibrating the free reed escapes from the cell into the bellows through one of the escape valves, and when the bellows are compressed air is forced into the cell through the other of the intake valves and in vibrating the free reed escapes from the cell through the other of the escape valves, a base frame member including a series of openings each in communication with a cell of the block, a pair of end walls mounted upon the base frame member, a top frame member spanning the end walls and including a series of openings communicating with each cell of the block, a, cover common to the several openings of the top frame member, and latching means removably securing the cover to the end walls, the base member including means adapted for receiving the block in the end frame of the accordion.

CHARLES DE GASERO.

References Cited in the file of this patent UNITED STATES PATENTS