US806949A - Device for tuning pianos. - Google Patents

Device for tuning pianos. Download PDF

Info

Publication number
US806949A
US806949A US25241005A US1905252410A US806949A US 806949 A US806949 A US 806949A US 25241005 A US25241005 A US 25241005A US 1905252410 A US1905252410 A US 1905252410A US 806949 A US806949 A US 806949A
Authority
US
United States
Prior art keywords
tuning
arm
pianos
bar
wrest
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
US25241005A
Inventor
Carl Braun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US25241005A priority Critical patent/US806949A/en
Application granted granted Critical
Publication of US806949A publication Critical patent/US806949A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/10—Tuning pins; Tensioning devices

Definitions

  • My invention relates to improvements in devices for tuning pianos; and the object is to provide means whereby the strings will remain at the required tension and thereby the piano in tune much longer than hitherto has been the case.
  • Figure 1 is an elevation and Fig. 2 a section thereof on line A B viewed from the left of a tuning device constructed in accord ance with one embodiment of my invention
  • Fig. 3 is a detail of a modification thereofv Similar letters refer to similar parts throughout the several views.
  • a bar a is secured upon the wrest-plank for each set of unison-strings.
  • This bar has projections c with holes d.
  • the bar a In front of each of these projections the bar a has a double ear 6, to which is hinged, by means of a pivot an arm g.
  • Each arm g has a hole ac, widening toward the respective projection c.
  • the opposite side of each of the said arms has an arc-like re cess h.
  • the free end of each of the said arms has a screw-threaded hole i, in which is located the wrest-pin 7c, secured in position by a set-screw Z.
  • each of the said arms is provided with a rounded shoulder m, over which the string passes.
  • a bolt 0 parallel to the sounding-board, having a square head and engaging in a cylindrical nut 19, located in the arm-recess h.
  • the strings are, as usually, secured at one end to the string-plate, but near the other end placed over the rounded shoulder m over the top edge of the arm g, wound onto the wrest-pin 7c in the usual way and by turning the latter tensioned.
  • the bolt 0 is then turned, which causes the arm g to move toward the respective projection c, and thereby tune the string to the proper pitch.
  • Fig. 3 I may form the pinhole i in the arm 9 at an incline instead of radial to the fulcrum thereof and taper as well as the shank of the wrest-pin, a set-screw Z being also provided to retain the latter in position.
  • the wrestpin is not directly subjected to the strain of the tensioned string, but such is taken up in the first place by the rounded shoulder m, adjacent to the pivotf of the arm g, and is thus jointly borne by the said shoulder and wrestpin.
  • the strain individually upon these parts is thus reduced, which causes the strings to remain in tune much longer than otherwise would be the case.
  • the double ears 6 and projections c of each set of unison-strings being upon one bar, the ap plication of the tuning device to the wrestplank can be affected more quickly than is the case in other tuning devices.
  • a bar In a device for tuning pianos, a bar, arms in number corresponding with that of the strings of one note fulcrumed thereto, awrest pin in each free end, and a tensioning-bolt through each of the said arms, the said bar being adapted to be secured to the wrestplank, each of the said arms having at the side between the fulcrum and wrest-pin, a rounded shoulder over which and the edge of the said arm the string passes to the said wrest-pin and projections on the said bar each carrying one of the said bolts, all combined substantially as and for the purpose set forth.

Description

N0- 806,949. PATENTED DEC. 12, 1905. G. BRAUN.
DEVICE FOR TUNING PIANOS.
APPLICATION FILED MAR-27, 1905.
I22 718M502 2 a 5 71 35 ZZZ/Q8366 r of jaw Wm mww H UW CARL BRAUN, OF ZURICH, SWVITZERLAND.
DEVICE FOR TUNING PIANOS.
Specification of Letters Patent.
Patented Dec. 12, 1905.
Application filed March 2'7, 1905. Serial No. 252,410.
To all whom it may concern.-
Be it known that I, CARL BRAUN, a citizen of Germany, residing at Zurich, Switzerland, have invented new and useful Improvements in Devices for Tuning Pianos, of which the following is a specification.
My invention relates to improvements in devices for tuning pianos; and the object is to provide means whereby the strings will remain at the required tension and thereby the piano in tune much longer than hitherto has been the case. I attain these objects by the device illustrated in the accompanying drawings, in which Figure 1 is an elevation and Fig. 2 a section thereof on line A B viewed from the left of a tuning device constructed in accord ance with one embodiment of my invention, while Fig. 3 is a detail of a modification thereofv Similar letters refer to similar parts throughout the several views.
Referring to Figs. 1 and 2, a bar a is secured upon the wrest-plank for each set of unison-strings. This bar has projections c with holes d. In front of each of these projections the bar a has a double ear 6, to which is hinged, by means of a pivot an arm g. Each arm g has a hole ac, widening toward the respective projection c. The opposite side of each of the said arms has an arc-like re cess h. The free end of each of the said arms has a screw-threaded hole i, in which is located the wrest-pin 7c, secured in position by a set-screw Z. One side of each of the said arms is provided with a rounded shoulder m, over which the string passes. Through the holes ac and d in the arm g and projection 0, respectively, passes a bolt 0 parallel to the sounding-board, having a square head and engaging in a cylindrical nut 19, located in the arm-recess h. The strings are, as usually, secured at one end to the string-plate, but near the other end placed over the rounded shoulder m over the top edge of the arm g, wound onto the wrest-pin 7c in the usual way and by turning the latter tensioned. The bolt 0 is then turned, which causes the arm g to move toward the respective projection c, and thereby tune the string to the proper pitch.
According to a modification of my invention, Fig. 3, I may form the pinhole i in the arm 9 at an incline instead of radial to the fulcrum thereof and taper as well as the shank of the wrest-pin, a set-screw Z being also provided to retain the latter in position.
In the tuning device described the wrestpin is not directly subjected to the strain of the tensioned string, but such is taken up in the first place by the rounded shoulder m, adjacent to the pivotf of the arm g, and is thus jointly borne by the said shoulder and wrestpin. The strain individually upon these parts is thus reduced, which causes the strings to remain in tune much longer than otherwise would be the case. Furthermore the double ears 6 and projections c of each set of unison-strings being upon one bar, the ap plication of the tuning device to the wrestplank can be affected more quickly than is the case in other tuning devices.
What I claim as my invention, and desire to secure by Letters Patent, is
In a device for tuning pianos, a bar, arms in number corresponding with that of the strings of one note fulcrumed thereto, awrest pin in each free end, and a tensioning-bolt through each of the said arms, the said bar being adapted to be secured to the wrestplank, each of the said arms having at the side between the fulcrum and wrest-pin, a rounded shoulder over which and the edge of the said arm the string passes to the said wrest-pin and projections on the said bar each carrying one of the said bolts, all combined substantially as and for the purpose set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
CARL BRAUN.
witnesses CARL LANDWEHRLUE, A. LIEBERKNECHT.
US25241005A 1905-03-27 1905-03-27 Device for tuning pianos. Expired - Lifetime US806949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US25241005A US806949A (en) 1905-03-27 1905-03-27 Device for tuning pianos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25241005A US806949A (en) 1905-03-27 1905-03-27 Device for tuning pianos.

Publications (1)

Publication Number Publication Date
US806949A true US806949A (en) 1905-12-12

Family

ID=2875431

Family Applications (1)

Application Number Title Priority Date Filing Date
US25241005A Expired - Lifetime US806949A (en) 1905-03-27 1905-03-27 Device for tuning pianos.

Country Status (1)

Country Link
US (1) US806949A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004485A (en) * 1975-08-11 1977-01-25 Ernie Ball, Inc. Mechanism for adjusting tension of an elongated filament
US4811645A (en) * 1988-02-04 1989-03-14 Cummings Larry E Tuning mechanism for stringed instrument
US5035168A (en) * 1990-05-07 1991-07-30 Williams Wayne T Balance pin assembly for a piano key
US8952231B1 (en) 2009-04-03 2015-02-10 Eduardo Edison Gonzalez Compact gearless tuning mechanism for stringed instruments

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004485A (en) * 1975-08-11 1977-01-25 Ernie Ball, Inc. Mechanism for adjusting tension of an elongated filament
US4811645A (en) * 1988-02-04 1989-03-14 Cummings Larry E Tuning mechanism for stringed instrument
US5035168A (en) * 1990-05-07 1991-07-30 Williams Wayne T Balance pin assembly for a piano key
US8952231B1 (en) 2009-04-03 2015-02-10 Eduardo Edison Gonzalez Compact gearless tuning mechanism for stringed instruments

Similar Documents

Publication Publication Date Title
US806949A (en) Device for tuning pianos.
US31288A (en) Tuning-peg
US390612A (en) moffat
US613900A (en) Means for tuning musical instruments
US1924720A (en) Piano construction
US118353A (en) Improvement in pianos
US538198A (en) Tuning device for pianos
US621700A (en) Guitar-bridge
US1007960A (en) Capo tasto.
US493748A (en) Arthur bollermann
US500562A (en) Agraffe for pianos
US1732172A (en) Tuning peg for violins and other string instruments
US1039834A (en) Straining-hook.
US144842A (en) Improvement in piano-string bridges
US833706A (en) Drum and cymbal beater.
US1094653A (en) Piano tuning-pin.
US480064A (en) Device for adjusting drum-snares
US638154A (en) Piano tuning-pin.
US23388A (en) Machine for bending tires
US927005A (en) Warp-beam head.
US1232862A (en) Tuning-pin.
US674550A (en) Drum.
US550366A (en) Tuning-pin and adjusting-screw for pianos
US363720A (en) String-instrument
US1011533A (en) Snare-strainer.