US1411820A - Metal pianoforte action - Google Patents

Metal pianoforte action Download PDF

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Publication number
US1411820A
US1411820A US341435A US34143519A US1411820A US 1411820 A US1411820 A US 1411820A US 341435 A US341435 A US 341435A US 34143519 A US34143519 A US 34143519A US 1411820 A US1411820 A US 1411820A
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metal
action
jack
butt
hammer
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US341435A
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Waggett Frederick Wm
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Waggett Frederick Wm
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00Details or accessories
    • G10C3/16Actions
    • G10C3/161Actions specially adapted for upright pianos
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00Details or accessories
    • G10C3/16Actions
    • G10C3/18Hammers
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10CPIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C9/00Methods, tools or materials specially adapted for the manufacture or maintenance of musical instruments covered by this subclass

Description

F. W. WAGGETT.

METAL PIANO FORTE'ACTION.

APPLICATON FILED NOV.29| I919.

1,41 1,820. v atented Apr. 4, 1922.

3 SHEETS-SHEET l.

I E; Ii i F. W. WAGGETT- METAL PIANOFQRTE ACTION.

1,41 1,820. A PLICATION FILED NOV. 29, 1919- Apr. 4, 3 SHEETS-SHEET 3- kri FREDERICK M. WAGGETT, or renew GATE, ENGLAND.

METAL PIANOFORTE ACTION.

" Specification of Letters Patent.

Patented Apr. 4., 1922.

Application filed November 29, 1919. Serial No. 341,435.

have invented certain new and useful 1111- provements in Metal Pianoforte Actions, of which the following is a specification.

, This invention relates to pianoforte' actions made of metal and bent to shape by press tools, cast or otherwise shaped or formed,'and has for its object to so improve the construction and arran ement of certain of the parts of such actions that an increased leverage is provided for the operation of the hammer-butts by the vjacks, the production of noise when the jacks return to their normal position is prevented, the warping-of wood and other disadvantages of wood actions are eliminated, and the manufacture: of the action is more easy and economical.

The invention will now be described with which 1 Figure 1 is a side perspective view of the improved form of hammer-butt,

Figure 2 shows in plan aportionof the metal strip or blank from which the parts of Figure 1 are formed;

Figure 3 is a side elevationof the i1 n proved combined set-ofi and jack-stop; v

Figure 4 shows in plan a metal strip or blank used in forming the. device shown in Figure 3;

- Figure 5 shows two views of an adjustable cord lug for the set-01f of Figure 3;

Figure 6 shows two views illustrating the improved bridle-wire and jackgand Figure 7 shows two views of a device for securing a wooden hammershaft to a metal hammer-butt.

Figure 8 is a vertical sectional view,

front view ofthe parts shown portion of which is shown in Figure 2 which is bent to form a triangular portlon the apex 8 of which forms the releasing point 9 for the jack. At 10 is shown a piece of the metal cut and bent down to form a sup: port for a piece of felt or other soft ma terial 11 which is inserted in the hole left by the cutting of the piece 10 and may be secured to the latter by pinning, tying, sewing or otherwise, forwhich purpose a hole 'or holes may be made in the piece 10. As an alternative a. piece of metal may be made to correspond with the lower side of the triangular portion and be bent to form the front apex 8 of the same and be attached'to the main hammer section 12 by means of rivets or the like. The object of these constructions of the hammer-butt is to position the point 9 where the jack acts upon the hammer-butt at an increased distance from the hinge centre 13 and thereby gain in leverage, and to insert or attach thereto a piece of felt or other soft material to avoid noise when the jack returns to its normal pOSltlOIl. reference to the accompany ng drawlngs, 1n 7 Figure 3 shows a combined set-off and jack stop one of which is used for each-note instead of the ordinary set-01f and jack stop, and is attached to the action-rail by means of one or more screws or otherwise suitably.

'The'strip of metal 1 1 shown in Figure 4 is bent to the shape shown in. Figure 8 the portion being preferably spooned or hollowed such as indicated to prevent friction as it act uates the jack 16 for the purpose of set ting it off. The eyed screw 17 adjusts the set-off and passes through a clearance hole 18 made at the upper-end of the main set off and screws into a threaded hole 19 provided at the lower end. The lower end of the set-off is preferably made narrow for a greater length than the upper end, thereby lower end as the screw 17 is turned.

A lug 20 formed on the strip 1 1 is pro vided with a hole in the centre which preferably has a slot. or channel leading into it as shown at 21. A cord is threaded from end to end of the action, or certain parts thereof, passing through each set-off and adjustably attached for tension to the action standards or rail. This cord takes the place of the usual jack-stop. The

channel or slot 21 enables the" cord to be' pressed or forced sideways into the hole instead of being threaded therethrough.

As the jack which is shown by dotted lines in Figure 3 is disengaged from the hammerbutt when set-elf it will be prevented from moving too far from its usual position by the said cord, the position of the lug 20 and of the cord being such that the jack can only be set cit to a given extent and therefore easily drops back to its norn'ial position immediately the releasing or partial releasing of the key permits, thus preventing blocking. The lug may be adj'ustably fitted to the main set-ell. For instance, as shown in Figure 5, the lug 20 may be formed on a sleeve 22 adapted to slide upon the set-oil and to be fixed in position thereon by a set screw or otherwise suitably. To avoid noise in working the aforesaid cord may be covered with -felt or have washers of felt or similar material threaded thereon.

Figure 6 appertains to an improved method of fixing the looped tape or cord to the bridle-wire 23 which is acco1nplished by means of a slot and hole on each side of the wire at 24:. The loop of the cord or tape is put over the wire and pressed or forced sideways into the holes through the slots; byinverse method it can also be removed. The bridle-wire 23 is shown out from the centre of a metal strip which also forms the check 25, the upper part of the bridle-wire being made larger to allow for the holes and also to allow room for the tape of cord to pass freely to the balanced hammer.

F igure 7 shows a clip or fastening by means of which a wood hammer-shank can be fastened to a metal hammer-butt The clip may be made of metal tube and may be cut away in the middle as shown at 26 to give greater holding power on the wood shank, or it can be made by metal stamping and bent round, the joint being brazed or otherwise fixed or overlapping and held by the screw 27 passing through both ends, or the clip may be cast. The clip is passed over the U-shaped portion 12 of the ban mer-butt, the screw 27 acting against the same After the wood-hammer shank has been placed in position within the U-shaped portion 12 of the hammer-butt the screw 27 will draw the clip firmly to the wood thereby holding the hammer in place. The clip being of round section, and of such a size that the hammer-shank fits within it, enables the hammer to be fixed slanting to one side or cast over by'cutting away the wood in a slanting direction on one side in the same manner as in fitting the hammershank into the hole in the hammer-mitt of a wood action.

\Vhat I claim is 1. A. pianotlt'orte action comprising a ha1nmer-butt made of metal. and having a terwardly extending portion to provide a point disposed a considerable distance in front of the hinge of the butt and against which point the jack acts, thus increasing the leverage, and a combined metal set off and jack-stop for each section or note oi the action.

2. A pianot'orte action comprising a hammer-butt made of metal and having a ior- \vardly extending portion to provide a point disposed a considerable distance in tront oi the hinge of the butt and agaii'ist which point the jack acts, thus increasing the leverage, and a combined adjustable metal set-oil and jack-stop for each section or note of the ac tion.

3. A pianoforte action comprising a hammer-butt made of metal and having a iorwardly extending portion to provide a point disposed a considerable distance in front of the hinge of the butt and against which point the jack acts, thus increasing the leveragaand a combined adjustable metal setofl? and jack-stop for each section or note of the action and consisting of a strip of metal which is bent to U-shape, has one of its arms shaped to actuate and set-oil' the jack, and has its two arms adjustable relatively to one another by means of an adjusting screw.

4. A pianot'orte action comprising a hammar-butt made of metal and having a ton wardly extending portion to provide a point disposed a considerable distance in front of the hinge of the butt and against which point the jack acts, thus increasing the leverage, a combined metal set-off and jack-stop for each section or note of the action, and a perforated lug on said set-oil for holding a check, or guard in position. i

5. A pianoforte action comprising a han1- mer-butt made of metal and having a forwardly extending portion to provide a point disposed at considerable distance in front of the hinge of the butt and against which point the jack acts, thus increasing the le verage, combined metal set-oil's and jackstops one for each section or note of the action, perforated lugs on said set-oifs and a cord passing through the series of lugs.

6. A pianofortc action comprising a hammer-butt made of: metal and having a ton wardly extending portion to provide a point disposed a considerable distance in trout of the hinge of the butt and against which point the jack acts, thus increasing the leverage, a combined metal setofi and jackstop for each section or note otthe action, and a bridle-wire which perfora ted and slotted on both sides for the attachment thereto of a looped tape or cord.

7. A pianoiorte action comprising hammer-butts each made of metal and having a forwardly extending, portion to provide a point disposed at considerable distance in front of the hinge ofthe butt and against which point the jack acts. thus increasing the leverage, a combined metal setoit' and jack-stop for each section or note oi the action, and bridle-Wires each of which is perforated and slotted on both sides for the attachment thereto of a looped tape or cord and is formed integrally with a jack or check.

8. A pianoforte action comprising hammer-butts each made of metal and having a forwardly extending portion to provide a point disposed a considerable distance in front of the hinge of the butt and against which point the jack acts, thus increasing the leverage, a combined metal set-off and jack-stop for each section or note of the action, bridle-Wires each of which is perforated and slotted on both sides for the attachment thereto of a looped tape or cord, and atubular metal clip by means of which a W00(l hammer-shank is fastened to the metal ha-mmer-butt.

In testimony whereof I have hereunto signed my name.

FREDERICK WM. \VAGGETT.

US341435A 1919-11-29 1919-11-29 Metal pianoforte action Expired - Lifetime US1411820A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621105A (en) * 1970-03-10 1971-11-16 Nippon Columbia Action device for electric musical instrument
US20090173206A1 (en) * 2008-01-08 2009-07-09 Yamaha Corporation Keyboard musical instrument and action unit incorporated therein

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621105A (en) * 1970-03-10 1971-11-16 Nippon Columbia Action device for electric musical instrument
US20090173206A1 (en) * 2008-01-08 2009-07-09 Yamaha Corporation Keyboard musical instrument and action unit incorporated therein
US7807907B2 (en) * 2008-01-08 2010-10-05 Yamaha Corporation Keyboard musical instrument and action unit incorporated therein

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