Improvements in the Frames of Pianofortes and the like Instruments.
Year: 1898

page_text: THOMAS HAVELOCK HUTCHINSON, Pianoforte Maker and Dealer, of 1 and 2,
Clarence Place, Newport, in the County of Monmouthshire, do hereby declare
the nature of this invention to be as follows:-
An upright or oblique frame for pianofortes or other instruments, divided into
three or four sections, and made of iron, steel, aluminium or any other metal,
material or mixture suitable for the purpose.
The object of my invention is to provide a means by which the existing
system of casting the frames in one piece may be altered to such an advantage
that by having the frame cast in sections one man can apply same in place
of two or three men as is now the case. The working or fixing of the frames
to the back of the instrument would thereby be greatly facilitated and the
expense curtailed. This idea is specially designed for use and improvement in
connection with my barless frame previously patented but could be also adapted
to frames constructed with a bar or bars.
Doted this 20th day of October 1808
Improvements in the Frames of Pianofortes and the like Instruments.
I, THOMAS HAVELOCK HUTCHINSON, Pianoforte Maker and Dealer, of 1 and 2,
Clarence Place, Newport, in the County of Monmouthshire, do hereby declare
the nature of this invention and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement:-
This invention relates to improvements in the construction of the frames of
pianofortes, made of metal or other material, and has for its object to construct
the frames in such a way that one man can fix a frame to the back of an
instrument, instead of two or three men being required for this purpose as is now
the case on account of the great weight of the frame.
According to this invention, I cast or otherwise make the frame in sections,
such sections being provided with suitable means for fitting them together
as they are fixed to the back of the instrument.
And in order that my said invention may be more clearly understood, I will
now proceed to describe the same with reference to the drawings accompanying
this specification, in which Figure 1 shews a view of the several sections of a
frame, Figure 2 a detail hereinafter described, Figure 3 the application of my
invention to the frame of a horizontal grand pianoforte.

page_text: The same letters of reference are employed to denote the same parts in all
the views.
a, b, c, d shew four sections of the frame, e and f shew circular projections
on the section a and g shews a similar projection on the section b. These pro-
jections e, f, g fit into recesses h, i, j respectively, shews a projection in
the form of a dovetail, on the section c, fitting into the recess m in the section d.
By dropping or placing the projections in the corresponding recesses, the various
sections are united, so as to form the frame, the sections being further held in
position by the tension of the strings, and by the abutments. A flange . is
provided on the under side of the frame.
One of the joints is shewn detached at Figure 2.
Although I have described and shewn certain forms of projections and recesses
for holding the sections together I do not wish to confine myself to these particular
forms, as others might be used with advantage.
The drawing shews a barless frame, as patented to me in Letters Patent
No. 23751, dated 26th October 1896, to which description of frame my present
invention is particularly applicable. Should it be required to apply this inven-
tion to a frame with bars, additional recesses would be provided, as shewn by
dotted lines at n, o, p, q. (Figure 1), and the bars would be provided with pro-
jections, such as those already described, for engaging in the said recesses.
Although I have described the frame as composed of four sections, I do not wish
to limit myself to this number, as in some cases I may employ a greater or less
number.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is: :-
1. Making the frames of upright, horizontal or oblique pianofortes in sections,
for the purpose set forth.
2. Making barless frames for upright, horizontal or oblique pianofortes in
sections for the purpose set forth.
BROWNE & Co.,
'Agents for the Applicant,
9, Warwick Court, Gray's Inn, London, W.C.
BROWNE & Co.,
Agents for the Applicant,
9, Warwick Court, Gray's Inn, London, W.C.