DE23377C - Adjustable hammer head for pianoforte's - Google Patents
Adjustable hammer head for pianoforte'sInfo
- Publication number
- DE23377C DE23377C DENDAT23377D DE23377DA DE23377C DE 23377 C DE23377 C DE 23377C DE NDAT23377 D DENDAT23377 D DE NDAT23377D DE 23377D A DE23377D A DE 23377DA DE 23377 C DE23377 C DE 23377C
- Authority
- DE
- Germany
- Prior art keywords
- hammer head
- pianoforte
- adjustable hammer
- felt
- spring
- 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.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Printing Methods (AREA)
- Impact Printers (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
KLASSE Sl: Musikalische Instrumente.CLASS Sl: Musical instruments.
Patentirt im Deutschen Reiche vom 7. December 1882 ab.Patented in the German Empire on December 7, 1882.
Um eine Regulirung der Harte des Hammerkopfes sowie auch eine einfachere, d. h. weniger mühevolle und billigere Herstellung zu ermöglichen, ist dem Hammerkopf die skizzirte Form und Anordnung gegeben.In order to regulate the hardness of the hammer head as well as a simpler, i.e. H. fewer To enable laborious and cheaper production is the shape sketched out for the hammer head and arrangement given.
Einem Holzkern A, ähnlich den bisher verwendeten Kernen, wird am hinteren Ende eine entsprechende Dicke gegeben, um das Loch für den Stiel B und von vorn die beiden Schlitze C anbringen zu können.A wooden core A, similar to the cores previously used, is given an appropriate thickness at the rear end in order to be able to make the hole for the handle B and the two slots C from the front.
Dann wird auf eine elastische, biegsame Feder D, am besten aus Stahlblech (obwohl auch gewöhnliches Eisenblech und andere Metalle, ebenso Fischbein, Rohr, Hartgummi, Holz etc. geeignet erscheint), und zwar von der Länge, wie es die erforderliche Gröfse des Hammers bedingt, ein Streifen Filz E von entsprechender Dicke gelegt, mit einer Stellschraube F das eine Ende des Filzes durchbohrt, darauf die Schraube durch die vorher mit den nöthigen Löchern versehene Feder D und endlich durch das straff gezogene, angespannte vordere Ende des Filzes gesteckt, worauf schliefslich die Mutter G aufgeschraubt wird. Die zusammengebogenen Enden der Feder werden dann in die Schlitze C C eingeschoben und mit Schrauben HH festgehalten. Then an elastic, flexible spring D, preferably made of sheet steel (although ordinary sheet iron and other metals, as well as whalebone, pipe, hard rubber, wood, etc., appears suitable), and of the length as the required size of the hammer conditionally, put a strip of felt E of appropriate thickness, pierced one end of the felt with a set screw F , then put the screw through the spring D, which was previously provided with the necessary holes, and finally through the taut, tense front end of the felt, whereupon finally the nut G is screwed on. The bent ends of the spring are then pushed into the slots CC and held in place with screws HH .
Die Zunge oder der Holzkern A kann am Ende aa, um hier elastischer zu werden, mit Filz oder Leder versehen werden, falls es die Federspannung oder -der zu erzielende Anschlag erfordert, wie in der Zeichnung angegeben ist, doch kann er auch nur so lang gemacht werden, als zur Haltbarkeit der entweder fest oder lose an der Stelle α durchgehenden Schraube F nothwendig erscheint. Wird die Stellschraube angezogen, so verändert sich die Biegung der Feder derart, dafs aus der runden Form eine ovale entsteht, wodurch die Spannung des Filzes oder irgend eines anderen gewählten Stoffes vermehrt wird. Werden mehrere Schichten von Filz, Leder oder irgend welchen anderen Stoffen über einander aufgelegt, so wird eine Befestigung durch Leim oder andere Haltmittel nöthig sein.The tongue or the wooden core A can be provided with felt or leather at the end aa, in order to be more elastic here, if the spring tension or the stop to be achieved requires it, as indicated in the drawing, but it can only be as long be made than appears necessary for the durability of the screw F, which is either tightly or loosely at the point α. When the set screw is tightened, the curvature of the spring changes in such a way that the round shape becomes oval, thereby increasing the tension on the felt or any other chosen material. If several layers of felt, leather, or any other material are laid on top of one another, they must be fastened by glue or other means of retention.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE23377C true DE23377C (en) |
Family
ID=299932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT23377D Active DE23377C (en) | Adjustable hammer head for pianoforte's |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE23377C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2271625A1 (en) * | 1974-05-15 | 1975-12-12 | Incentive Ab |
-
0
- DE DENDAT23377D patent/DE23377C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2271625A1 (en) * | 1974-05-15 | 1975-12-12 | Incentive Ab |
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