IMPROVEMENTS IN PEGS FOR REGULATING THE TENSION OF STRINGED INSTRUMENTS
Year: 1876

page_text: LETTERS PATENT to William Haydon Cooke, of Woolwich, in the County of
Kent, Professor of Music, for the Invention, of "IMPROVEMENTS IN PEGS FOR
REGULATING THE TENSION OF STRINGED INSTRUMENTS."
Sealed the 5th January 1877, and dated the 22nd November 1876.
PROVISIONAL SPECIFICATION left by the said William Haydon Cooke at
the Office of the Commissioners of Patents on the 22nd November 1876.
WILLIAM HAYDON COOKE, of Woolwich, in the County of Kent, Professor of
Music. "IMPROVEMENTS IN PEGS FOR REGULATING THE TENSION OF STRINGED
INSTRUMENTS.'
Hitherto pegs for regulating the tension of stringed instruments have been
constructed with the peg proper or winder of one piece.
This Invention consists in constructing such pegs of two portions, a fast and a loose,
fitted with a clutch or other such mechanical contrivance, so that said pin may be
rendered wholly fast when desired for tuning, and when loose the string more
readily inserted and made to envelope the peg preparatory to the tension thereof,
which said tension can then' be more quickly and accurately adjusted than here-
tofore, thereby lessening the wear and tear of peg holes and pegs, and also the
breaking of strings in bringing 'them to proper tension, and in combination with
such improved pegs the use of the ordinary pinion and ratchet micrometer adjusters
for delicate adjustment.
The pins and clutches are to be made preferably of metal, and the holes or eyes
for receiving such pins to be supplied with metal bearings, so that the pins may
work truely therein. The clutch arrangement may be conveniently. fixed outside
the hole frame.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Haydon Cooke in the Great Seal Patent Office on the
18th May 1877.
WILLIAM HAYDON COOKE, of Woolwich, in the County of Kent, Professor of
Music. "IMPROVEMENTS IN PEGS FOR REGULATING THE TENSION OF STRINGED
INSTRUMENTS."

page_text: Hitherto pegs for regulating the tension of stringed instruments have been
constructed with the peg proper or winder of one piece.
This Invention consists in constructing such pegs of two portions, a fast and a
loose, fitted with a clutch or other such mechanical contrivance, so that said pin
may be rendered wholly fast when desired for tuning, and when loose the string
more readily inserted and made to envelope the peg preparatory to the tension
thereof, which said tension can then be more quickly and accurately adjusted than
heretofore, thereby lessening the wear and tear of peg holes and pegs, and also the
breaking of strings in bringing them to proper tension, and in combination with
such improved pegs the use of the ordinary pinion and ratchet micrometer adjusters
for delicate adjustment.
The pins and clutches are to be made preferably of metal, and the holes or eyes
for receiving such pins to be supplied with metal bearing, so that the pins may work
truly therein. The clutch arrangement may be conveniently fixed outside the
hole frame.
The accompanying Drawing will serve to show a practical mode of performing
my Invention.
"Figure 1 is the front view of the stock of a violin fitted with the improved pegs;
Fig. 2, a side view of same.
Figs. 3, 4, and 5, details of the peg and its various adjuncts.
In all the Figures like letters indicate like parts.
His a violin stock; A, the thumb part of the peg; G, the peg; F, the screw
plate holding the cogg wheel E and the collar clutch C, as shown; D is the pinion
with thumbscrew attached; B, the clutch fixed to the peg G.
The various parts may be made of metal or of metal and wood combined.
The action is as follows:-A string being inserted in the string hole of G, a rough
adjustment is made thereof by turning the thumb piece A with its clutch B in and
over the clutch C; the finer adjustment is then made by the pinion D.
I prefer to make the pin of a metal tube and fill it in with wood, and so
obtain strength and lightness. As shown the pegs on right hand side of the stock
must wind to the right and the pegs on left side to the left, but the teeth of the
clutch may be reversed and both sides made to wind in the same direction.
In witness whereof, I, the said William Haydon Cooke, have hereunto set my
hand and seal, this Seventeenth day of May, in the year of our Lord One
thousand eight hundred and seventy-seven.
T
W. H. COOKE. (L.S.)