US768447A - Piano-tuning hammer. - Google Patents

Description

PATENTBD AUG. 23, 1904. F. E. H. GOODENOW. PIANO TUNING HAMMER.

APPLICATION FILED MAR. 10.1903. N0 MODEL.

UNITED STATES :atented August 23, 1904.

PATENT @FFICE.

PIANO-TUNING HAMMER.

SPECIFICATION forming part of Letters Patent No. 768,447, dated August 23, 1904.

Application filed March 10, 1903.

To (l/ll whom, it may concern/.-

Be it known that I, FREDRICK E. H. GrooDE- NOW, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Piano- Tuning Hammers, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

I My invention relates to improvements in piano-tuning hammers, and has for its object to provide a piano-tuning hammer of a construction-which will enable the tuner to tune the strings of an upright piano while seated.

My invention is intended to overcome the diificulties attendant upon the use of the ordinary tuning-hammers, which necessitate the tuning of the piano to be effected while the tuner is standing.

In the drawings, Figure 1 is a vertical side view of a hammer embodying my invention, showing the handle and hammer-head in section. Fig. 2 is a side view of a hammer embodying my invention, showing the manner in which its structure is conformed to the location of the tuning-pins in an upright piano.

My improved piano-tuning hammer comprises the handle 1, having the longitudinallyextending opening 2; an adjusting-rod having its lower end 8 slidingly mounted in the opening 2, the central portion 4: of said adjusting-rod extending at substantially right angles to the lower end 3 and the upper end 6 of said adjusting-rod being squared and substantially at right angles to the central portion t and in a plane substantially parallel with the lower end 3; the set-screw 8, carried by the handle 1, to adjustably locate said handle upon the adjusting-rod; the hammer-head 5, slidingly mounted upon the upper end 6 of the adjusting-rod and held against rotation by said rod being squared, and the set-screw 7, screw-seated in said head to locate said head rigidly upon theadjusting-rod.

Referring to Fig. 2, the hammer must be adjusted so that the combined length of the handle 1 and the lower end 8 of the adjustingrod Willlocate the hand of the operator below the hammer of the piano-action and above the other mechanism of the piano-action, and

Serial No. 147,202. (No model.)

the operative length of the upper end 6 of the adjusting-rod must be such that the central horizontal portion 4 will clear the action of the piano-hammer. This vertical adjustment of the hammer-head 5 upon the adjusting-rod is of great importance. By means of the double adjustability of the hammer the operator is enabled to reach all of the tuning-pins of an upright piano while he is seated in position to manipulate the keys of the piano, and by the offset at the central portion of the adjusting-rod, together with the double adjustment, the operator is enabled to manipulate the keys of the piano and at the same time manipulate the tuning-pins without having any of the key-operating mechanism interfere with the tuning-hammer.

By the use of the above-described hammer the tuner being seated can more readily strike the keys of the piano during the operation of tuning, and great economy of time and labor is effected, as the operation of tuning is made less tiresome.

Having fully described my invention, what I claim as new, and desire to have secured to me by the grant of Letters Patent, is-

A piano-tuning hammer, comprising the handle 1 having the longitudinally-extending opening 2; the adjusting-rod having the lower end 3 slidingly mounted in said opening 2, having the central portion 4 extending laterally from the end 3, and having the squared upper end 6 extending upwardly from the central portion 4 in a plane substantially parallel with the lower end 3; the hammer-head 5 slidingly mounted upon the squared upper end 6 and held against rotation; the set-screw 7 carried by the hammer 5 to locate said hammer upon the squared upper end of the adjusting-rod; and the set-screw 8 carried by the handle 1 to adjustably locate the handle upon the lower end of the adjusting-rod; substantially as specified.

In testimony whereof I have signed my name to this specification in presence of two subscribing witnesses.

FREDRICK E. H. GOODENOW.

itnesses:

ALFRED A. From, JOHN C. HIeDoN.

Images