Патент USA US2133089код для вставки
> s FRANKLINGRILLE STRUCTURE FOR ACCORDIONS File4d May 16, 1938 2,133,089 2,133,089 Patented Oct. 11, 1938 _ UNITED STATES PATENT OFFICE 2,133,089 ' GRILLE STRUCTURE FOR‘ ACCORDIONS Stephens Franklin, Chicago, 111. Application May 16, 1938, Serial No. 208,174 7 Claims. (CI. 84—37 6) This invention relates to the removable cover, sometimes called the “gallery”, which extends over the valves of an accordion, and which gen 5 erally includes a grille of ornamental design, adapted to permit the emanation of sound from the reeds which the valves control. The object of this invention is to provide an improved grille construction for such a cover member or gallery, designed to aiTord a pleasing ornamental appear 10 ance, to improve the tone quality ‘of the instru ment, to strengthen the grille structure and to permit‘ of economical production. The invention consists in certain features and elements in com bination, as herein shown and described and as indicated by the claims. In the drawing: Figure 1 is a perspective view of an accordion gallery constructed in accordance with this inven tion. 20 2, so as to sub-divide them into a multiplicity of small openings or slots. This produces the de sired reticulated structure through which the sound may escape from the reeds of the instru ment, and at the same time lends itself to pleas ing ornamental arrangements, of which that shown in Figure l is only one example. For convenience and economy of assembly, the bars or strips, 3, may be made of sheet metal 10 formed as open channels with their side walls, 4, 4, trending toward each other, as seen in Fig »ure 4. Short sections, 5, of metal strap are at tached to the outer surface of the part, I, adja cent the margins of the openings, 2, each such section being secured by a suitable fastener, such as a rivet, 6. These strap sections, 5, being spaced apart at the desired intervals, and arranged in alignment longitudinally of the gallery, I, de?ne gallery shown in Figure 1, a portion being broken the positions at which the bars, 3, are to be ap plied. In each of these bars, 3, the distance be away to condense the view. Figure 3. is a detail section taken as indicated at tween the side walls, 4, 4, is slightly less than the width of one of the strap sections, 5. The edges Figure 2 is a plan view of the under side of the line 3—3 on Figure 2. 25 of the member, I, extending across the openings, . Figure 4 is a detail section on a larger scale than Figure 3 for showing the means of attachment of the molding strips or bars which form the grille. Figure 5 is a detail view of the under side of a fragment of one of the molding strips and the se 30 curing element therefor. Figure 6 is an external face view of a portion of a gallery showing a modi?ed arrangement of the ‘molding strips. I of the strap are slightly rounded, as seen in Fig ure 4, so that the channel strip, 3, may be forced onto the strap, the side walls, 4, 4, yielding slight ly to admit the strap between them and then holding frictionally thereto with sufficient force to retain the bar ?rmly in position. Thus, after the strap sections, 5, have been applied to the 30 celluloid cover member, I, in the proper positions, the assembly of the grille is substantially com pleted by merely pressing the bars, 3, into place cut, and more or less molded to the desired shape. over the strap sections, 5. If desired, a screen of suitable fabric, such as silk, may be applied to the inner surface of the gallery, I, to extend over the openings, 2, so that the valves and other mecha nism shall not be directly visible; but this is a common expedient, and is not shown in the To permit the emanation of sound from the reeds drawing. as the various valves are opened, this cover is provided with openings which, in most instances, The bars, 3, being made of sheet metal, may be plated and polished in any desired ?nish, which are arranged to form intricate ornamental pat terns or designs. This requires that such open ings be individually cut in the sheet material as will afford a pleasing contrast with the surface of the sheet material composing the body por— tion of the cover or gallery, I. The end portions In most accordions, as manufactured today, 35 the individual valves which controlthe reeds are enclosed by a cover or gallery which’is removably ‘secured in place, and which is usually composed ‘of’ fairly thin sheet material, such as celluloid, by means of a scroll saw or fret saw, requiring of each channel bar, 3, may be specially formed that a considerable amount of time and skill be expended on each individual gallery. My inven tion involves a much simpler and more economi cal method of securing the desired result. The cover member, I, is composed of celluloid or like sheet material, but instead of an intricate design it is provided with a few large openings, 2, which may be, and are shown as, rectangular. Bars or so as to close the channel; as shown in the draw 55 molding strips, 3, are secured to the outer face 5 40 ing, they are tapered and pointed as seen at ‘I, but it may be understood that either a rounded formation or a substantially blunt end is equally 50 feasible. In Figures 1, 2 and 3, the bars are indicated as extending longitudinally of the gallery, I, but in Figure 6 I have shown a portion of a gallery, I0, having relatively long rectangular openings, 20, 55 2 2,133,089 extending longitudinally therein with a series of comparatively short bars or molding strips, 30, crossing these openings, 20, in the direction of the shorter dimension of the gallery. It will be evi dent that various other arrangements may be em ployed to vary the design and ornamental appear ance of the structure. As compared with a single layer or sheet of celluloid into which a relatively intricate design ii) is introduced by cutting out many small areas of various shapes, the present construction is not only simpler, but is much stronger and less likely to become damaged by accident or rough handling. The bars, 3, being of sheet metal, and 15 of channel formation, are comparatively sti? vfor their weight, and serve to reinforce the light sheet material of the body, I, to which they are applied. Being of metal, they are unaffected by climatic changes, and will prevent any tendency 20 of the celluloid portion of the gallery toward 7 Warping It has been found that, :in use, a gallery of this :type tends to improve the tone quality of the instrument to a considerable extent. The 525 metallic structure consisting of the bars, 3, per mits the reeds to send out a clear ringing tone, whereas a grille ,or gallery of softer materials, lic bars extending over the opening spaced from each other to form a plurality of smaller open ings, and means securing said bars to the outer surface of the wall at points adjacent the mar gins of its opening. in 2. An accordion grille comprising a wall of sheet material having an opening, and a plurality of metallic bars extending over the opening spaced from each other to form a plurality of smaller openings, said bars being of channel shape cross-section, and being mounted on the wall against the outer face thereof and opening inwardly. 3. An accordion grille comprising a wall of sheet material having an opening, a plurality of metallic channel bars extending over the open ing and spaced from each other to form a plu rality of smalleropenings, and projections on the outer face of the wall at points adjacent the margins of its opening and engaging in the chan IL) nels of said 'ha-rs forsecuring them. 4. accordion grille comprising a wall of sheet-material having an opening, a plurality of metallic channel bars extending across the open ing and .spaced ‘from each other to form a plu- , ralit-y of smaller openings, and a series of pro jections .on the :outer face of the Wall at points such as celluloid and cloth, more commonly em adjacent the margins of the opening, said chan ployed, ‘tends to i-deaden or damp the musical nel bars .being resilient and sprung to embrace 130 tones. It ‘is also possible that the hollow forma said projections for securement to the outer face v; tion of the bars, 3, contributes in some degree :of the wall. to this effect. 15. An accordion grille comprising a wall of It will beunderstood that some of the advan sheet material having a series of aligned :open ''-tages mentioned maybe secured if solid bars of ings, a plurality of metallic bars each extending 35 relative light metal :are employed instead of bars across all the openings of the series and :in par- ; "of :channelshape, and that various other methods allel relation to the other bars, said :bars being of securing the bars to the gallery wall may be ~spaced~1apart1to form a plurality of smaller ‘open used. As indicated in Figure 6, round buttons, rings, and means projecting from the outer sur :53, may be employed in combination with the face of the wall at points adjacent the margins 14.0 " strap sections, .5, or as substitutes for them, and :of said ‘openings engaging said bars and securing these fastening elements may be attached to the them :against .the -.outer face of the wall. 'Wall of the gallery ‘by screws or bolts instead of 6. An accordion grille comprising va wall :of ;by rivets, as shown in Figure 4. , The side walls, ,sheet celluloid -.or like material having one or 4, 9f thechannels, instead .of merely converging, 45 ‘:may be bent so that their edges constitute ?anges which may peclampedunder the heads of secur ing bolts or other fastening devices instead of re more openings, a plurality of :metallic bars ex tending-over said openings :and spaced ‘from each =otherto‘form a plurality of smaller openingswith ,means securing said bars rigidly-to the outer sur faceof the wall ;at points adjacent the margins lying uponrrictionalonaeas in the structure here in illustrated. But with any of these variations .of the openings. 7. An accordion grille comprising a wall of 3 50 :a gallery constructed in accordance with my in ;vention can‘ be manufactured economically, and sheet material having an opening, a plurality of without the employment vof specially skilled op tubular bar-s each slotted atone side to provide ;erators, while, at the same time, it is adaptable openings in said bars, said bars being arranged to jto-a wide range of ornamental designs of rich ,extend-overftheopening in the wall in‘spaced re and pleasing appearance, and .more in accord lation from each other to form a plurality of ance-with modern artistic trends than the elab smaller openings, and means extending from the ' orate grilles which have been heretofore em jouter faceof the wall and into the slots of said played“ bars for securing them to the WaILxWhereby the I claim; securing means is concealed by the bars. 60 1. An accordion grille comprising a wall of sheet :material having an opening, a plurality of metal STEPHENS FRANKLIN.