US1406382A

US1406382A - Piano-action bracket

Info

Publication number: US1406382A
Application number: US406879A
Authority: US
Inventors: Higel Otto
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-08-30
Filing date: 1920-08-30
Publication date: 1922-02-14
Anticipated expiration: 1939-02-14

Description

0. HIGEL.

PIANO ACTION BRACKET.

APPLICATlON mm AUG.30, 1920.

1 ,106,382, Patented Feb. 14, 1922 Int c2120) JUNITED sTAiTEs PATENT OFFICE.

or'ro HrsEL, on NEW YORK, n. Y.

Improvements in Piano-Action Brackets, de

scribed in the following specification and illustrated in the accompanying drawings, that'form part of the same. i

The principal objects of thisinvention are to devise a form'of action bracket of alight and'strongconstruction which may be readilymanufactured in various lengths and will be cheap to produce.

Up to the present time it has been the I practice to use a cast iron bracket for supporting piano actions and owing to the variations in dimensions and designs of pianos to which the action is applied, it is necessary for the manufacturer to carry a large stock of different sizes and forms.

The present form of bracket enables the manufacturer to adjust the bracket to various dimensions owing to its being constructed of sheet metal.

In the drawings, Figure 1 is a side elevation and part sectional View of my improved bracket showing the location of the various rails of the action.

Figure 2 is a perspective View of the bracket.

Figure 3 is a perspective view of a modified form of bracket.

The bracket consists of a sheet metal member 1 preferably formed of a U-shape or channel cross section. The upper end is formed with a fork 2 which straddles the bracket bolt 3. An outward curve 1 is formed in the member 1 below the fork and leads to a perpendicular portion 5 to which the spring rail 6 is secured.

An angular bracket member 7 has one end secured to the portion 5 of the back of the member 1 by a screw or rivet 8. The upper portion 9 of this bracket forms the rest for the hammer rail 10. The outer portion curves downwardly and is securely riveted to a sloping portion 11 of the bracket 1.

The bracket 7 forms a finger grip for the handling of the action. The inner end is formed with a loop 12 to which the swing arm 13 of the hammer rail 10 is pivotally secured.

Below the bracket 7 and at the opposite side of the member 1 the edges of the chan- Specification of Letters Patent.

" PIANO-ACTION nnaoxnr.

Patented Feb. 14, 1922.

Application filed August 30, 1920. Serial No. 406,879.

nel shaped memberare formed with a plurality of serrated teeth 14 projecting beyond the edge of same and forming a contact surface for the main action rail 15,"

which is secured in an adjusted position by the bolts 16 which extend through the back of the channel. The bottom or abstract rail 17 is supported from the lower vertical portion of the member 1.

iAt the bottom end the channel-shaped member is flared outwardly and the web of the'channel extends inwardly between the side flanges and is formed with a conical socket 18 adapted to rest upon the tapered end of the supporting bolt 19 which is mounted in the key-board frame of the piano.

A rectangular slot 20 is cut through the lower end of the web of the channel and is adapted to receive the curved foot member 21. This curved foot member is formed with the notches 22 centrally of its length at the top and bottom and a flat strip of metal 23 of the same width as the said notches is bent around the member 21, fitting snugly into the notches and this metal strip with the foot 21 fits snugly between the flanges of the channel-shaped bracket. The upper and meeting ends of the strip 23 are bent into a semi-cylindrical curved form which meet and encircle the fastening rivet 24 which is secured in the web of the channel section. The foot is thus very securely held in a very simple and efl'ective manner.

The various members of the action are secured by means of suitable bolts or screws extending through the web of the bracket and they are adjustable on said bracket. If the adjustments required are abnormal, the bracket may be produced of substantially the same pattern with the straight portion 5 of a greater length.

In the form of bracket shown in Figure 3, the design is of a straight form. The hammer rail bracket is substantially the same as that shown in Figures 1 and 2 but the main rail support differs slightly. The support is formed of an L-shaped block 25, the bottom end 26 of which forms a foot projecting from the channel while the upright portion fits between the flanges of the channel. A sheet metal strip 27 is pressed into channel formation to fit around the member 25 within the channel of the bracket. This is wedged tightly into place brackets are herein shown and described but or maybe fastened r With a suitable screw if desired or it may be riveted or brazed in sheet metal having a radial armi29 which fits between the side packing plates 30 and is rigidly secured between the flanges of the main channel. The Web of the channel is f V V V of the aforesaid bracket onithe front side bent underthe end and formed with a socket 81 similar tot-he socket 18.; or

Two; different forms of sheet metal action it mustbe understood that the actual design or: shape of the bracket may be varied considerably and that any desired form of sheet .metal may be used Without departingfrom the spirit of the invention.

r bracket such as described may be read ily bent 'to fit into pianos where only a slight variation occurs and it is also capable of being bent laterally so that 'it will be readily understood that a very great range of adjustment is possible'where with cast metal bracketsadjustment is impossible.

What I claim as my invention is 1. A piano action bracket, comprising, a

channel shaped sheet metal arm having the web thereof bent inwardly at the end and wrung and P nd adapted to en-' g g e bracket bolt, 1 V

2. A piano action bracket, 1 comprising, a

sheet metal member in the form of an arm 7 having a U-shaped or channel section bent to shape to engage and support the various action rails, a bracket connected'to the .Web

adapted to support thehammer rail, and a foot secured to the bottom of said bracket tosupport the bracket in a standing position.

support the main action rail.

4:. Apia-no action'bracket, comprisingfa bracket of channel-shaped section havin'g a 7 slot cut throughthe Web adjacent' to the bottom, a curved sheet metal foot extend ing through said slot and being notched in the top-and bottom, a metal strip bent around said foot and resting in said notches and fitting snugly between the flanges of the main bracket securing the foot therein,

, or'rov HIGEL