US609210A - John henry papps and louis frank papps - Google Patents
John henry papps and louis frank papps Download PDFInfo
- Publication number
- US609210A US609210A US609210DA US609210A US 609210 A US609210 A US 609210A US 609210D A US609210D A US 609210DA US 609210 A US609210 A US 609210A
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- US
- United States
- Prior art keywords
- papps
- wrest
- john henry
- pins
- frank
- 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
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- 230000036290 Papps Effects 0.000 title description 8
- 240000000731 Fagus sylvatica Species 0.000 description 2
- 235000010099 Fagus sylvatica Nutrition 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
- G10C9/00—Methods, tools or materials specially adapted for the manufacture or maintenance of musical instruments covered by this subclass
Definitions
- Figure 1 illustrates in side sectional elevation so much of the framework of a pianoforte with a wrest-pin in position as is necessary to explain our invention.
- Fig. 2 is a front view of Fig. 1 with wrest-pin in section; and
- Fig. 3 is a similar view to Fig. 1, illustrating a somewhat modified arrangement.
- wrest-pins A of cylindrical form, in some cases finely serrated, having one end A squared or polygonal, so as to receive a key, and the opposite endthereof A preferably rounded.
- the framework of the pianoforte is formed with a rear metal plate B, having a number of holes G, into which the rounded ends of the wrest-pins fit.
- the holes 0 may extend wholly or partially through the plate B, in the former case as illustrated in Fig. 1 and in the latter as at Fig. 3, in which case the base of the hole 0 limits the endwise movement of the wrest-pin A should undue pressure be put upon it when applying a key, or any suitable checks may be arranged to limit the lateral movement of the wrest-pins.
- a front plate D is provided, in which are formed a number of apertures E, located directly in front of the before-mentioned holes O.
- the apertures E in the front plate D (best seen at Fig. 2) are wider at the top than at the bottom and are of elongated formation, their longest axis being in a line with the pull of the wire.
- the wrest-pins A pass through the apertures E in the front plate D and, as before stated, take into the holes 0 in the rear plate 13.
- the wrest-pin A is free to turn and also move radially in a vertical direction about the holes 0 in the rear plate B.
- a pianoforte-wire F is attached to the wrestture E of the front plate D.
- the end A being in the hole 0, is prevented from rising, the sides of the tapered aperture E gripping the wrest-pin A, and thus preventing the pin from turning back after the wire has been tightened.
- the wrest-pins may be placed in position without requiring to be driven or forced and are loose when in position until the wire is tightened. In a similar manner they may be readily taken out after having loosened the tension of the wire.
- lVe claim as our invention- In a device for sustaining and adjusting the tension of wires of pianofortes and-like instruments, the framework having a front supporting-plate with tapering slotted apertures therein and a back plate with apertures therein and cylindrical wrest-pins passing into such apertures whereby the wires when tightened pull the wrest-pins into the tapered apertures in the plate so that they are gripped and prevented from turning, as set forth.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Stringed Musical Instruments (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Description
Io. 609,2!0. Patented Aug. I6, I898. J. H. 6. L. F. PAPPS.
DEVICE FOR SUSTAINING AND ADJUSTING TENSION 0F WIRES 0F PIANOFONTES.
(Application filed M as, lee-1.
(No Nodal.)
UNITED STATES PATENT OFFICE.
JOHN HENRY PAIPS AND LOUIS FRANK PAPPS, OF SOUTHSEA, ENGLAND, ASSIGNORS OF ONE-THIRD TO THOMAS HARRISON, OF LONDON, ENGLAND.
DEVICE FOR SUSTAINING AND ADJUSTING TENSION OF WIRES OF PIANOFORTES.
SPECIFICATION forming part of Letters Patent No. 609,210, dated August 16, I898.
A licatio filed December 29, 1897. Serial No. 664,374. (No model.) Patented in England May 27, 1897,1T0. 13,089.
To to whom it may concern.-
Be it known that we, JOHN HENRY PAPPS and LOUIS FRANK PAPPS, subjects of the Queen of Great Britain, residing at Southsea, in the county of Hants, England, have invented new and useful means or devices for sustaining and adjusting the tension of wires of pianofortes and like instruments, (for which we have obtained a patent in Great Britain, No. 13,089, bearing date May 27, 1897,) of which the following is a specification.
In the manufacture of pianofortes and like instruments it is a common practice to employ a heavy beech plank to receive the wrest-pins, which are driven into holes in such plank. This arrangement has many disadvantages; and the object of our invention is to provide improved means whereby the wrest-pins are securely held and readily capable of being adjusted.
Referring to the accompanying drawings, Figure 1 illustrates in side sectional elevation so much of the framework of a pianoforte with a wrest-pin in position as is necessary to explain our invention. Fig. 2 is a front view of Fig. 1 with wrest-pin in section; and Fig. 3 is a similar view to Fig. 1, illustrating a somewhat modified arrangement.
According to our invention we employ wrest-pins A of cylindrical form, in some cases finely serrated, having one end A squared or polygonal, so as to receive a key, and the opposite endthereof A preferably rounded.
The framework of the pianoforte is formed with a rear metal plate B, having a number of holes G, into which the rounded ends of the wrest-pins fit. The holes 0 may extend wholly or partially through the plate B, in the former case as illustrated in Fig. 1 and in the latter as at Fig. 3, in which case the base of the hole 0 limits the endwise movement of the wrest-pin A should undue pressure be put upon it when applying a key, or any suitable checks may be arranged to limit the lateral movement of the wrest-pins.
A front plate D is provided, in which are formed a number of apertures E, located directly in front of the before-mentioned holes O. The apertures E in the front plate D (best seen at Fig. 2) are wider at the top than at the bottom and are of elongated formation, their longest axis being in a line with the pull of the wire.
The wrest-pins A pass through the apertures E in the front plate D and, as before stated, take into the holes 0 in the rear plate 13. Thus the wrest-pin A is free to turn and also move radially in a vertical direction about the holes 0 in the rear plate B.
A pianoforte-wire F is attached to the wrestture E of the front plate D. The end A being in the hole 0, is prevented from rising, the sides of the tapered aperture E gripping the wrest-pin A, and thus preventing the pin from turning back after the wire has been tightened.
Thus it will be seen that by our invention the wrest-pins may be placed in position without requiring to be driven or forced and are loose when in position until the wire is tightened. In a similar manner they may be readily taken out after having loosened the tension of the wire.
lVe claim as our invention- In a device for sustaining and adjusting the tension of wires of pianofortes and-like instruments, the framework having a front supporting-plate with tapering slotted apertures therein and a back plate with apertures therein and cylindrical wrest-pins passing into such apertures whereby the wires when tightened pull the wrest-pins into the tapered apertures in the plate so that they are gripped and prevented from turning, as set forth.
JOHN HENRY PAPPS. LOUIS FRANK PAPPS.
lVitnesses:
W. STOAKES, WILLIAM J. RoAcn.
Publications (1)
Publication Number | Publication Date |
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US609210A true US609210A (en) | 1898-08-16 |
Family
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US609210D Expired - Lifetime US609210A (en) | John henry papps and louis frank papps |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060269221A1 (en) * | 2005-05-18 | 2006-11-30 | Matsushita Electric Industrial Co., Ltd | Content reproduction apparatus |
US20110106966A1 (en) * | 2001-08-20 | 2011-05-05 | Masterobjects, Inc. | System and method for utilizing asynchronous client server communication objects |
-
0
- US US609210D patent/US609210A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110106966A1 (en) * | 2001-08-20 | 2011-05-05 | Masterobjects, Inc. | System and method for utilizing asynchronous client server communication objects |
US20060269221A1 (en) * | 2005-05-18 | 2006-11-30 | Matsushita Electric Industrial Co., Ltd | Content reproduction apparatus |
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