US1375146A - Pressure-bar for piano-strings - Google Patents

Pressure-bar for piano-strings Download PDF

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Publication number
US1375146A
US1375146A US393222A US39322220A US1375146A US 1375146 A US1375146 A US 1375146A US 393222 A US393222 A US 393222A US 39322220 A US39322220 A US 39322220A US 1375146 A US1375146 A US 1375146A
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United States
Prior art keywords
strings
piano
bar
pressure
bridge
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Expired - Lifetime
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US393222A
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Gardner Alphons Gotthold
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Priority to US393222A priority Critical patent/US1375146A/en
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    • 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
    • G10C3/07—Strings
    • G10C3/08—Arrangements thereof

Definitions

  • the object of the invention isV to hold more iirmly those portions of certain treble strings of a piano which lie between the main bridge and the hitch pins, thereby changing' more or less the pressure of the strings on the bridge.
  • Fig. 2 shows in perspective the pressure bar and screw.
  • Fig. 3 shows the bar in place on the strings.
  • Fig. 4 is a View at right angles to that of Fig. 3.
  • a short block or bar 20 extends across the two triplets or sets of strings numbered 16 and 17 from the top.
  • This .ba-r is located between the main bridge 21 and the hitch pins 22 and is held in placeY by a screw e into the soundingboardyand presses the strings slightly closer to the sounding board, thereby preventing rattling and increasing their pressure on the bridge, which in some cases improves the tone.
  • I claiin-u Y A piano having 'a short pressure bar extending across the strings for two treble notes only, in the region of N os. 16 and 17 from the top, said bar located between the soundingboard bridge and the hitch plate, and a screw drawing said bar toward the soundingboard7 substantially as described.

Description

A. G. GARDNER.
PRESSURE BAR FOR PIANO STRINGS.
APPLICATION FILED JUNE so. 1920.
1,375,146. Patented Apr. 19, 1921.
1/5. /z /6./5. /4. /3./ 2. /0. 9. a. 7 6.5.4. 3. 2j.
/V V/W l 2 A. Irufenor` ai l 2 Wnesscs UNITED STATES PATENT onirica.
ALPHONS GOTTHOLD GARDNER, OF LOS ANGELES, CALFORNIA.
PRESSURE-BAB FOR PIANO-STRINGS.
Specification of Letters Patent.
Patented Apr. V19, 1G21.
Application led June 30, 1920. Serial No. 393,222.
California7 have invented Improved Pres-- sure Bars for Piano-Strings, of which 'the following is a description.
The object of the invention isV to hold more iirmly those portions of certain treble strings of a piano which lie between the main bridge and the hitch pins, thereby changing' more or less the pressure of the strings on the bridge.
In the accompanying drawing- Figure 1 shows diagrammatically the treble end of a piano plate with strings.
Fig. 2 shows in perspective the pressure bar and screw.
Fig. 3 shows the bar in place on the strings. Fig. 4 is a View at right angles to that of Fig. 3. A
As Fig. 1 shows, a short block or bar 20 extends across the two triplets or sets of strings numbered 16 and 17 from the top.
This .ba-r is located between the main bridge 21 and the hitch pins 22 and is held in placeY by a screw e into the soundingboardyand presses the strings slightly closer to the sounding board, thereby preventing rattling and increasing their pressure on the bridge, which in some cases improves the tone.
I claiin-u Y A piano having 'a short pressure bar extending across the strings for two treble notes only, in the region of N os. 16 and 17 from the top, said bar located between the soundingboard bridge and the hitch plate, and a screw drawing said bar toward the soundingboard7 substantially as described.
ALPHONS GOTTHOLD GARDNER.
US393222A 1920-06-30 1920-06-30 Pressure-bar for piano-strings Expired - Lifetime US1375146A (en)

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US393222A US1375146A (en) 1920-06-30 1920-06-30 Pressure-bar for piano-strings

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US393222A US1375146A (en) 1920-06-30 1920-06-30 Pressure-bar for piano-strings

Publications (1)

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US1375146A true US1375146A (en) 1921-04-19

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