US1872633A - Stringed musical instrument - Google Patents

Stringed musical instrument Download PDF

Info

Publication number
US1872633A
US1872633A US374672A US37467229A US1872633A US 1872633 A US1872633 A US 1872633A US 374672 A US374672 A US 374672A US 37467229 A US37467229 A US 37467229A US 1872633 A US1872633 A US 1872633A
Authority
US
United States
Prior art keywords
resonator
bridge
diaphragm
arms
musical instrument
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US374672A
Inventor
Dopyera Rudolph
Original Assignee
Dopyera Rudolph
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dopyera Rudolph filed Critical Dopyera Rudolph
Priority to US374672A priority Critical patent/US1872633A/en
Application granted granted Critical
Publication of US1872633A publication Critical patent/US1872633A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10DSTRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D3/00Details of, or accessories for, stringed musical instruments, e.g. slide-bars
    • G10D3/02Resonating means, horns or diaphragms

Description

Aug. 16, 19 372. DQPYERA 1,87Z,633
` STRINGED MUSICAL INSTRUMENT I Filed June 29, 1929 2 Sheets-Sheet l I'NVENTOR.
R. DOPYERH.
& 193Z- R. DOPYERA STRINGED MUSICAL INSTRUMENT 2 Sheets-Sheet '2 Filed June 29, 1929 INVENTOR Patented Aug. 16, 1932 'PATENT OFFICE RUDOLPE DOPYERA, or Los ANGELES, cALIFoRNIA e sTnINGEDfM srcAL INSrRU ENT A lication med June '29,
stringed musical instrumente.
The general object of 'this invention is to provide an improved resonator for' stringed instrumente. i
Anotherobject of my invention is to pro- Vide a musical instrument having a resonator theren, and wherein the musical sounds produced 'are of sweet tone and amplified power.
A more specific object of the inventionis to provide an improved metal resonator 'for musical instrunents of the class described' A further obj ect of my invention' is to provide a musical instrument having a resonator therein and wherein the resonator includes a resonant body supported so that the body is hanging when in position. i
Other objects andthe advantages of this invention will be apparent from the following description taken in connection with the accompanying drawings wherein e i Fig. l is a top plan'view of a guitar embod ing the features of my invention.
' ig. 2 is an enlarged cross section taken on line 2-2 of Fig. v Fig. 3 is an enlarged end view of Fig. 1.
Fig. 4 is an enlarged fragmentary longtudinal section taken on line of Fig. 1, and y i k Fig. 5 is an enlarged fragmentary top plan view of the device withvarious parts broken away to more clearly illustrate the invention.
Referring to the drawings by reference characters I have indicated a guitar embodying the features of my invention generally at 10. Although I have shown and described my invention in connection with a 'guitar it may be embodiedin any stringed musical instrument such as banjos, violins, etc., 'Without departing from the spirit of the inven tion or the scope of the appended claims' y As shown the guitar includes a body portion 12 having a conventional neck v 14 and tail piece 15 thereon with strings 16 strung from the tail pieceto keys 17. i
The body portion 12 comprises spaced side Walls 18 having a top 19 provided with an aperture 20 and a bottom 21 secured thereto in any desired manner. Secured tojthe top 19 and the bottom 20 adjacentthe aperture This invention relates to improvements in 1929. I serial N 374572.
20 there isprovided a wall 22 which is spaced from the side walls lS and follows the contour of'the aperture 21 to form a well 23. This wall 22 is provided with a plurality of apertures 24. The top surface of the wall 22 projects inwardly beyond the edge which' defines the aperture 20 and forms ashelf as 'indicated at 25-upon=which is positioned an angle member 26 which is shown as secured to 'the wall 22 'by a plurality of screws 27.
'Suspended from the angle member 26 there is provided a metallic resonator daphragm indicated generallyat 30 and which is preferably made of' duralum'in or other suitable material. The resonator 30 includes a concavewall 31 which merges into a conical upwardly projecting wall 32 which is 'provided with a plurality of apertures 33. The outer edge of the diaphragm 30 is preferably providedfwith a downwardly turned flange 34 which is adapted to snugly engage the outer face of the angle member 26 while between theouter edge of the diaphragm and the wall 31 thereis'provided 'a ridge 35.
Positioned on the diaphragm ridge 35 there is provided a spider web bridgeindicated generally at 36 andwhich includes a central portion 37 havinga plurality ofradial arms 38 radiating therefrom. These arms form a spider and they are preferably connected together by a plurality of webs 39 although I mayuse but one web if'desired. This bridge is preferably made of duralumin or other suitable material and includes a raised cene ter bar 40 which is provided with a groove 41 in which is positioned two pieces of Wood 42 for the instrument strings 16 to rest upon. The bridge 36` is so positioned on the diaphragm ridge 35 that only. the ends of the arms 38 engage the rdge 35 so that' all other parts of the bridge are free from engagenent With the daphragm and other parts of the instrument 10. e
The bridge is Secured to the diaphragm 30 by a screw 43 which passes through the bridge and engages the threads of a 'threaded' boss 44 `secured to the: diaphragm' at the apex of theconical portion 32. The weight of the spider 30 is preferably lessened by providing grooves 45 in the under side of the arms 38 and by grooves 46 in the Webs 39.
Over the aperture 20 I provide a cover 48 which is preferably made of duralumin and is shown as secured to the top 19 by a plurality of screws 49. This cover is curved upwardly and is spaced from the bridge and does not ,contact with any part of the diaphra gm 30 or the spider 36. An aperture 49' is provided in the cover 48 to allow access to the screw 43 after the cover is Secured to the body.
Apertures 50 and 51 are provided in the cover for the passage therethrough of the strings 16 and extending from these apertures to the rim of the cover depressed portions 5:2 and 53 are provided. The cover is also provided with a plurality of other apertures 54.
After all the parts have been assembled and the strings 16 have been correctly strung from the tail piece to the keys the tone of the instrument is' adjusted by tightening or loosening the screw 43.
hen the device is played by moving the strings 16 the vibrations of the strings pass therefrom to the wood pieces 42 thence through the legs 38 of the spider web bridge to the diaphragm ridge 35, thereby vbrating the diaphragm and causing a tone to be emitted therefrom. This tone then travels upwardly and out the apertures 54 in the cover and downwardly into the well from whence it passes out through the apertures 24 in the wall 22 into the body 12 and thence out through an aperture 55 provided in the top 19. From the foregoing description it will be apparent that I have provided a novel resonator for stringed instruments which is simple in Construction and highly efiicient in use.
Having thus described my invention, I claim:
1` In a stringed musical instrument, a hollow body including top, bottom and sides and having an opening in the top thereof, a wall spaced from the sides of said body and extending from the top to the bottom thereof adjacent to and below said aperture to form a well therein, said wall being apertured and a diaphragm resonator supported in said well.
2. In a diaphragm resonator including a downwardly curved body having a marginal rim, a ridge adjacent to said rim, a bridge spider having arms engaging said ridge and having webs connecting said arms, said diaphragm resonator having a central upwardly extending portion having its apex spaced from said bridge spider tension means connecting the center of said spider and said central upwardly extending portion of said chaphragm resonator and means for adjustmg said tensioning means.
3. In a stringed musical instrument having a top provided with an opening, a diaphragm resonator positioned in said opening, a bridge including radial arms engaging said resonator, said arms being of U shape, said i bridge including a central raised bar having a groove therein, wooden inserts in said grooves to support the playing strings, adjustable tension means to hold said bridge and diaphragm resonator assembled, and a cover arranged on said top over said opening, said cover having a depressed portion at each end ther-cof and having central apertures through which the strings extend.
4. In a stringed musical instrument, a hollow body including top, bottom and sides and having an opening in the top thereof, a wall arranged in said body below said opening to form a well therein, said wall having a shoulder thereon, an angle member secured to said shoulder and extending around the periphery of said wall, a diaphragm resonator including a body having a flange snugly engaging the outer face of said angle member,
said diaphragm resonator body including a J central conical part and a downwardly dished outer portion joined to said flan ed portion by a grooved rim to provide a rige at the juncture of said rim and said downwardly dished portion and a spider web bridge including radial arms and circumferential webs engaging said arms, said arms and said webs being of U shape with the outer ends of said arms engaging and supported on said ridge, said bridge including a central raised bar having a groove therein, wooden inserts in said grooves to support the playing strings and an adjnstable tension connectng said bridge and diaphragm resonator.
5. In a stringed musical instrument, a hollow body including top, bottom and sides and having an opening in the top thereof, an angle member Secured adjacent to said opening, a diaphragm resonator including a body having a flange snugly engaging the outer face of said angle member, said diaphragm resonator body including a central conical part and a downwardly dished outer portion joined to said fianged portion by a grooved rim to provide aridge at the juncture of said rim and said downwardly dished portion and a spider web bridge including radial arms and means to adjustably hold said bridge and diaphragn resonator assembled.
6. In a stringed musical instrument, a hollow body including top, bottom and sides and having an opening in the top thereof, a diaphragm resonator including a body having a flange snugly held adjacent to said opening, said diaphragm resonator body including a central conical part and a downwardly dished outer portion joined to said flanged portion by a grooved rim to provide a ridge at the juncture of said rim and said downwardly dished` portion and a spider web bridge including radial arms and circumfer- :of said wall, a diaphragm resonator including a body havin a fiange snugly engaging the outer face 0% said angle member, said diaphragm resonator body including a central conical part and a downwardly dished outer portion joined to said flanged portion by a grooved rim to provide a ridge at the juncture of said rim and said downwardly dished portion and a spider web bridge including radial arms and circumferential webs engaging said arms, said arms and said webs being of U shape with the outer ends of said arms engaging and supported on said ridge, said bridge including a central raised bar having a support for playing strings, a threaded member extending through said central bar, a second threaded member on said conical portion of said diaphragm resonator and engag ing said first member to adjustably hold said bridge and resonator assembled.
8. In stringed musical instrument, a thin hollow body including top, bottom and sides having an opening in the top thereof, an apertured wall arranged in said body below said opening to form a well therein, an angle member Secured adjacent to said opening and extending around the periphery of said wall, a diaphragm resonator including a body having a flange engaging said angle member, said diaphragm resonator body including a central conical part and a downwardly'dished outer portion joined tosaid flanged 'portion by a grooved rim to provide a ridge atthe juncture of said rim and said downwardly dished portion and a spider web bridge including a centralportion spaced from said conical part, radial arms and circumferential webs engagingsaid arms, said arms and said webs being of U shape with the outer ends of said arms engaging and supported on said ridge,said bri dge including a grooved bar, wooden inserts in said grooves to support playing strings, a tensioning device including'a threaded member extending through said grooved bar and a second threaded'member on said conical portion of said diaphragm resonator and engaging said first threaded member to adjustably hold said bridge and diaphragm resonator assembled.
9. In a stringed musical instrument, a holstrings extend.
low body including top, bottom and sides and having an opening in the top thereof, a wall arranged in said body below said opening to e form a well therein, said Wall having a shoulder thereon, an angle member Secured on said shoulder and'extending around the periphery of said Wall, a diaphragm resonator including a body having a flange snugly engagng the outer face of said angle member, said diaphragmresonator body including a central conical part and a downwardly dished outer portion joined to said fianged portion by a grooved rim to' provide a ridge at the juncture of said rim and said downwardly dished portion and a spider web bridge including a central portion spaced from said conical part, and having radial arms and circumferential webs engaging said arms, said' arms and said webs being of U shape with the outer ends of said arms engaging and supported onsaid ridge, said bridge includ- 10. In a stringed musical instrument, a
diaphragm resonator, a bridge supported by said resonator, and means for adjustably con-' necting the central portions of said bridge and said diaphragm resonator, said means comprising a screw passing through one of said parts and engagng threads on the other of said parts.
11. In a stringed musical instrument, a resonator, a bridge including radial arms resting on said diaphragm resonator, said brdge including a grooved bar, inserts in the groove of the bar 'for supporting the strings, and means for adjusting the tensioning of said diaphragm resonator, said means comprising an adjustable connection between said bridge and. said diaphragm resonator. i
12. A diaphragm resonator, including'a downwardly curving body portion having a ridge adjacent to the edge thereof, a bridge spider havingvarms loosely resting on said ridge, said diaphragm resonator havingan upwardly extending portion, and adjustable means connecting said bridge spider and the upwardly ext-ending portion of said diaphragm resonator.
13. For use with a diaphragm resonator, a bridge spider including radial arms, said arms being of inverted U-shapedlin cross section, said bridge spider having a central portion provided with a groove therein, and
,wooden inserts in said groove to support the strings.
Ll. A diaphragm resonator including u eurved body, an independent bridge spider having arms engngin the peripheral portion of said body, eonneeting the eenter of said bri and said body, said eonnecting me r adjustable to reguinte the tension of u; di hragm resonator.
15. In e. strii d musical instrument, a diaphragm resonator, a bridge positioned on, seid resona'or, said bridge positioned on said res nor, means eonnecting said bridge r, and means for adjustingthe le i `'d eonneetngmeans to regulnte the te; urid resonator.
16. A musical i. nent eomprising in eon'bnation member, strings held in and a resonator monnted on member provided interneliv Oi s periphery with an annular da and ;in annular ra' ed por portion the pen'` a ll annulur depressed portion eomp s sensitive receivduced as described.
17. i musical instrument eomprising in eombination with u supporting member and strings held in tension thereon, of n circnlzr resonntor held at its periphery on said supporting member, en ennular eoneave portion internully of the periphery and an unnulzr eonvei portion internally of said eoneave portion, and a bridge having a plurality of Contacts 'with seid convex portion and engaging said strings, sad eonvex portion being formed substnntinlly remote from the center of the resonetor.
18. A musical instrument eomprising in eombination With body and strings held in tension there-on, o?, u eireular metallic resonator supported e* its periphery on said body, a bridge ncludi a trnsverse member for engngement With id strings, and provided With arms etended therefrom for contact with said resonetor at points remote from the center thereof.
19. .i. stringed musical instrument comprising e. hollow body including speeed top and body members, :n ennular supporting member uttaehed 'to the top of the body and oommunicnting with the bottom thereof, a metallic rez nator h-eid on said supporting member ;na its periphery an( provided With un upn'erdly extended nnnuiur bend formed snbstantie y remo e from the center thereof, strings held i on said body, and a bridge hevi l`1l portion radally extend ivth said bend.
20. In a musical instrument, a hollon body g the said strings and ions tor engngement including a top, bottom and sides and having an opening in the top thereof, a circumferential upwardly faeing shoulder disposed a djaeent to said opening, a resonator including a body having its periphery engaging the said shoulder, said resonator body including a downwardly dished enter-portion within the periphery and a spider Web bridge including radial arms engaging said resonator Without said downwardly dished portion and means to hold said bridge and resonator assembled.
21. In a musical instrument, a. hollow body having an opening in the top thereof, a resonator having its periphery positioned on said body surrounding said opening, said resonator having an upwardly 'cing circumferential head internally of its periphery, a bridge spider having portions engaging said bend and downwardly dished portion between said periphery and said bend comprising the portion of maximum flexiblity of said resonator.
In testimony whereof, I hereunto afiix my signature.
RUDOLPH DOPYERA.
US374672A 1929-06-29 1929-06-29 Stringed musical instrument Expired - Lifetime US1872633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US374672A US1872633A (en) 1929-06-29 1929-06-29 Stringed musical instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US374672A US1872633A (en) 1929-06-29 1929-06-29 Stringed musical instrument

Publications (1)

Publication Number Publication Date
US1872633A true US1872633A (en) 1932-08-16

Family

ID=23477747

Family Applications (1)

Application Number Title Priority Date Filing Date
US374672A Expired - Lifetime US1872633A (en) 1929-06-29 1929-06-29 Stringed musical instrument

Country Status (1)

Country Link
US (1) US1872633A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931753A (en) * 1974-08-05 1976-01-13 Rudolph Dopera Stringed musical instruments
US20080223192A1 (en) * 2007-03-15 2008-09-18 Jan Anders Linden Stringed musical instrument
US20120234153A1 (en) * 2011-03-15 2012-09-20 Kerrick Enterprises, Inc. Resonating guitar with resonator conductor
US8710337B1 (en) 2010-03-31 2014-04-29 Fernando R. Gomes Tone enhancement bracket
US9478198B1 (en) 2015-06-18 2016-10-25 Brian H. Daley Recessed concave fingerboard

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931753A (en) * 1974-08-05 1976-01-13 Rudolph Dopera Stringed musical instruments
US20080223192A1 (en) * 2007-03-15 2008-09-18 Jan Anders Linden Stringed musical instrument
DE102008013552A1 (en) 2007-03-15 2008-09-18 Erkki Olavi Lindén Stringed musical instrument
US7482519B2 (en) 2007-03-15 2009-01-27 Olavi Linden Stringed musical instrument
US8710337B1 (en) 2010-03-31 2014-04-29 Fernando R. Gomes Tone enhancement bracket
US20120234153A1 (en) * 2011-03-15 2012-09-20 Kerrick Enterprises, Inc. Resonating guitar with resonator conductor
US8278538B1 (en) * 2011-03-15 2012-10-02 Kerrick Enterprises, Inc. Resonating guitar with resonator conductor
US9478198B1 (en) 2015-06-18 2016-10-25 Brian H. Daley Recessed concave fingerboard

Similar Documents

Publication Publication Date Title
US3413883A (en) Stringed musical instrument
US1872633A (en) Stringed musical instrument
US1762617A (en) Stringed musical instrument
US5969279A (en) Bridge and saddle for stringed musical instruments
US1010240A (en) Guitar.
US5000073A (en) Construction for supporting a reed upon the mouthpiece of a musical wind instrument and method of fabricating the same
US5355756A (en) Sound-enhanced stringed musical instruments
US3931753A (en) Stringed musical instruments
US870025A (en) Musical instrument.
US2089629A (en) Musical instrument
US2502085A (en) Resonant chamber for accordions
US2060357A (en) Musical instrument
US1863344A (en) Resonating guitar
US3014394A (en) Bass bar for stringed musical instrument
US1808756A (en) Stringed musical instrument
US536634A (en) Multiplex-stringed musical instrument
US1741453A (en) Stringed musical instrument
US1897531A (en) Tone modifier
US1604573A (en) Musical instrument
US1887861A (en) Stringed musical instrument
US1808757A (en) Stringed musical instrument
US1001302A (en) Stringed musical instrument.
US2027723A (en) Stringed musical instrument
US1798048A (en) Tone-amplifying device for stringed musical instruments
US1752906A (en) Stringed instrument