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Publication numberUS72824 A
Publication typeGrant
Publication dateDec 31, 1867
Publication numberUS 72824 A, US 72824A, US-A-72824, US72824 A, US72824A
InventorsEzra Durand
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
op norwich
US 72824 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

@uiten fttttes gettati @frn EZRA DURAND,A CF NCRWICH, CONNECTICUT. Letters Patent ltlo. 72,824, dated December 31, 1857.


tlge flgehiile tn'ernh tu tu ttgtte .Qtrtttts lattnt mit mi ting grat nf tljt stmt.


B c it known that'I, EZRA DURAND, of Norwich, New London county, Connecticut, have invented a new and improved Dulcimer; and I`do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of thisv specification, in which- Figure 1 represents a vertical longitudinal section of my improved dulcimcr, the plane of section being indicated by the line z z, tig'. 2.

Figure 2 is a vertical'eross-section of the same, the plane of section being indicated by the line y y, tig. 1.

Figure' 3 is a side view of the hammer-by which the instrument is played and Figure itis au edge view of the same.

Similar letters of reference-,indicate corresponding parts.

This invention-relates to a musical instrument which is known under the denomination of dulcimer.

The same consists of a number of metal or other strings, which are stretched across a sound-board in a manner similar totlzat in which piano-strings are secured. It is played by means of hammers which are in-the hands of the player, and by which the cords or strings are struck in the required succession.

The invention consists in the manner of constructing the sound-post by which the sound-board is supported, said sound-post being perforated, as well as the sound-board on each side of the post, for tlie purposeof allowing the vibrating air to pass through, thereby increasing the softness and distinctness of the sounds.

The invention also consists in the form and arrangement of tho bridges, whereby a certain part of each string is elevated, for the purpose ot' separating and easily distinguishing the bass and treble-strings in the instrument.

A-A represents a case or box, which is made of wood, of suitableform and dimensions. The same may, if desired, be supported upon legs B, and be provided with lids, and he ornamented, or otherwise so arranged, that its outer appearance will be similar to that of a piano-forte. But these legs, lids, or ornaments, or any one ot' them, may,lit` desired, be omitted.

C is the soundboard, which is supported by brackets D, which are secured in the case A. Its central portion rests upon a sound-post, E. The latter is made of one board, which is perforated with a number of holes, und on each side of it the sound-board C is also perforated, as is clearly shown ing. 1. The sound-post may, instead ofbeing n. perforated board, consist of two'horizontal bars, arranged respectively below the soundboard and above the bottom-board a of the case A. Between these bars are upright pillars, far enough apart from each other to permit the circulation of the air through the holes in the sound-board and through the sound-post.

e and f are' the strings, the former the bass, the latter the treble-strings- Their ends are secured around pins b and tuning-pins e, as shown.

The bass-bridge G is secured to the left-liand'side ofthe sound-board, and is provided with vertical projections ,'a's shown in fig. l. I

The low bridge II is arranged on the right-hand side of the sound-board, and is of usual construction.

The centrebridge I is as high as the higher parts, d, of the bridge G, and is perforated with holes, as shown in ig. 2.

The hess-strings e are laid over theelevated portion, d, of the bridge C, and are passed through the holes in the bridge I. The treblestringsf are laid over the centre bridge I, as shown. Thus, the bass-strings are highest near the bass-bridge G, and the treble-strings near the centre bridge I; and as the highest portions only are struck by the soft ends of the elastic hammer J, the bass and treble-strings can be easily distinguished from euch other.

The distance between the centre bridge and. bassbridge is smaller than that between the centre and low bridge H; and thus each treble-string has two tones, oneon either side oi' the centre bridge.

The number of strings is unlimited, and can'be increasedror diminished at pleasure.

Having thus'described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination of the perforated sounding-post E, perforated soiinding-board C, perforated centre bridge I, and notched bass-bridge G, the whole constructed substantillyss herein described, for the purpose specified.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3893364 *Jun 18, 1973Jul 8, 1975Harrison Louis DuaneDrumstick
US4386549 *Oct 5, 1981Jun 7, 1983Shinneman Leonice LSpecial effects mallet
US4592263 *May 21, 1985Jun 3, 1986Gallimore Byron AElectro-mechanical stringed bass machine
US20050240300 *Apr 22, 2004Oct 27, 2005Hallgrimur SigtryggssonMethod of manufacturing a plurality of wooden products
Cooperative ClassificationG10D1/12