US514711A - Hammer for pianofobte actions - Google Patents
Hammer for pianofobte actions Download PDFInfo
- Publication number
- US514711A US514711A US514711DA US514711A US 514711 A US514711 A US 514711A US 514711D A US514711D A US 514711DA US 514711 A US514711 A US 514711A
- Authority
- US
- United States
- Prior art keywords
- hammer
- actions
- string
- pianofobte
- tip
- 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
Links
- 210000001331 Nose Anatomy 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 239000007779 soft material Substances 0.000 description 6
- 210000003128 Head Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 210000003491 Skin Anatomy 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 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
- G10C3/00—Details or accessories
- G10C3/16—Actions
- G10C3/18—Hammers
Definitions
- Wirzama n7 I, I 1 I $12 m: NATXQHAL umnsmpmm c ooooo v.
- the object of my invention is to obtain a hammer that will be more effective upon the shorter strings of the piano-forte.
- I will refer to the hammer as now constructed and to the consequent defect in the higher notes of the instrnment resulting from such construction.
- the length of the strings of the highest note between the bridge of the soundboard and the agrafle is but about two inches and the point or center where they should be struck is but about an eighth of an inch from the agraffe and not more than about one sixty-fourth of an inch in length, but the narrowest or thinnest of thehammers constructed in the common way extends along the wire from an eighth to a quarter of an inch and are so soft that when the blow is struck the strings embed themselves into the hammers so as to make the length of contact still greater and less effective.
- the string of the length above mentioned vibrates nearly five thousand times in a second so that it is impossible for the hammer with its soft yielding face to get out of the Way clear of the string, after striking a blow, quickly enough to avoid its damping the vibration.
- My invention consists in the construction of the face of the hammer as hereinafter described and claimed whereby it is adapted for edectively striking the string at the proper point within an exceedingly short limit.
- Figure 1 is a side view of a hammer for one of the higher notes of an upright piano-forte illustrating my invention.
- Fig. 2 represents on an enlarged scale a section of the tip of the hammer shown in Fig. 1.
- the hammer head A is or may be constructed in the usual way and provided with the usual covering (Z of felt, leather or soft material.
- Z of felt, leather or soft material To the head thus constructed and faced I apply as shown in Figs. 1 and 3, across the tip or nose a piece 6 of thin metal, as wire, and secure the said piece 6 to the coveriugd by means of a facing strip f or integument of thin and soft material as leather or skin, which is lapped over the said piece e and secured by glue or other adhesive material to the covering d.
- the nose or tip of the hammer thus constructed may be made to strike the string on the exactventral point of the string best suited to produce the proper tone, the length of the string with which the hammer comes in contact being the minimum and the recoil of the hammer from the string will be very sharp and the hammer will have but little tendency to damp the string and thereby check the vibration.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Auxiliary Devices For Music (AREA)
Description
(No Model.)
A. W. HALL. HAMMER FORPIANOFORTE ACTIONS.
No. 514,711. Patented Feb. 13, 1894.
Wirzama n7: I, I 1 I $12 m: NATXQHAL umnsmpmm c ooooo v.
UNITED STATES PATENT OFFICE.
ALEXANDER VVILFORD HALL, OF NEIV YORK, N. Y.
HAMMER FOR PIANOFORTE-ACTIONS.
SPECIFICATION forming part of Letters Patent No. 514,711, dated February 13,1894.
Application filed January 28, 1898. Serial No.460,023. (No model.)
To all whom it may concern:
Be it known that I, ALEXANDER WILEoRD HALL, of the city and county of New York, in the State of New York, have invented a new and useful Improvement in Hammers of Pianoforte-Actions, of which the following is a specification.
The object of my invention is to obtain a hammer that will be more effective upon the shorter strings of the piano-forte. In order to explain this object fully I will refer to the hammer as now constructed and to the consequent defect in the higher notes of the instrnment resulting from such construction.
It is well recognized that the hammers of the higher notes in a seven and one-third octave or full size piano-forte bring out very little tone. This I have discovered to result from the formation of the tip of the hammer where it comes in contact with the string being so blunt that it becomes impossible on such short strings as are used for those notes to concentrate the force of the blow to the exact nodal point or center of the ventral sector where alone effective action can be produced. The length of the strings of the highest note between the bridge of the soundboard and the agrafle is but about two inches and the point or center where they should be struck is but about an eighth of an inch from the agraffe and not more than about one sixty-fourth of an inch in length, but the narrowest or thinnest of thehammers constructed in the common way extends along the wire from an eighth to a quarter of an inch and are so soft that when the blow is struck the strings embed themselves into the hammers so as to make the length of contact still greater and less effective. The string of the length above mentioned vibrates nearly five thousand times in a second so that it is impossible for the hammer with its soft yielding face to get out of the Way clear of the string, after striking a blow, quickly enough to avoid its damping the vibration.
My invention consists in the construction of the face of the hammer as hereinafter described and claimed whereby it is adapted for edectively striking the string at the proper point within an exceedingly short limit.
Figure 1 is a side view of a hammer for one of the higher notes of an upright piano-forte illustrating my invention. Fig. 2 represents on an enlarged scale a section of the tip of the hammer shown in Fig. 1.
In carrying out my improvement, the hammer head A is or may be constructed in the usual way and provided with the usual covering (Z of felt, leather or soft material. To the head thus constructed and faced I apply as shown in Figs. 1 and 3, across the tip or nose a piece 6 of thin metal, as wire, and secure the said piece 6 to the coveriugd by means of a facing strip f or integument of thin and soft material as leather or skin, which is lapped over the said piece e and secured by glue or other adhesive material to the covering d. The nose or tip of the hammer thus constructed may be made to strike the string on the exactventral point of the string best suited to produce the proper tone, the length of the string with which the hammer comes in contact being the minimum and the recoil of the hammer from the string will be very sharp and the hammer will have but little tendency to damp the string and thereby check the vibration.
What I claim as my invention is- I The combination in a piano-forte hammer of a covering of soft material overlapping the tip or nose of the hammer, a piece of metal arranged across the nose or tip outside of said covering and an integument covering said piece of metal and constituting the striking surface of the hammer, substantially as herein set forth.
ALEXANDER WILFORD HALL.
Witnesses:
FREDK. HAYNES, L. M. EGBERT.
Publications (1)
Publication Number | Publication Date |
---|---|
US514711A true US514711A (en) | 1894-02-13 |
Family
ID=2583519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US514711D Expired - Lifetime US514711A (en) | Hammer for pianofobte actions |
Country Status (1)
Country | Link |
---|---|
US (1) | US514711A (en) |
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0
- US US514711D patent/US514711A/en not_active Expired - Lifetime
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