IMPROVEMENTS IN MACHINERY FOR PUNCHING AND EYELETING LEATHER AND OTHER MATERIALS
Year: 1876

page_text: LETTERS PATENT to Frederick George Myers, Engineer and Machinist, in the
Town of Kettering, in the County of Northamptonshire, for the Invention of
"IMPROVEMENTS IN MACHINERY FOR PUNCHING AND EYELETING LEATHER AND
OTHER MATERIALS."
Sealed the 23rd March 1877, and dated the 6th October 1876.
PROVISIONAL SPECIFICATION left by the said Frederick George Myers at
the Office of the Commissioners of Patents on the 6th October 1876.
FREDERICK GEORGE MYERS, Engineer and Machinist, in the Town of Kettering,
in the County of Northamptonshire. "IMPROVEMENTS IN MACHINERY FOR PUNCHING
AND EYELETING LEATHER AND OTHER MATERIALS."
The machine forming the subject of the present Invention consists of a frame of
any convenient form, as for example that of an ordinary sewing machine, such frame
bearing three arms, an upper, an intermediate, and a lower one, each working in
bearings or centres. One end of the uppermost arm, which forms the punching
lever, is rounded and is furnished with a block or flanged collar, so constructed as to
be capable of a rotary motion and of traversing along the said arm, such movement
being imparted to it by a combination of levers and cams at the other end of the
arm, the motion round the arm being for changing the punches and dies, which are
affixed to the block or collar in the form of a star. The second or intermediate
arm has for its bearing the shaft of the first or upper arm; one of its ends is
employed as an ordinary presser, whilst the other by aid of cams works in a similar
manner to the first named one. The lower arm is made to contain the bottom die
or bolster or dies and bolsters, the same being constructed in a single block or plate,
moving in a manner to correspond with the motion of the top dies or punches.
The flanged collar bearing the punches and dies, as well as the bottom dies, are held
in position by means of screws, pistons, springs, or their equivalents.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Frederick George Myers in the Great Seal Patent Office on the
5th April 1877.
FREDERICK GEORGE MYERS, Engineer and Machinist, in the Town of Kettering,
in the County of Northamptonshire. "IMPROVEMENTS IN MACHINERY FOR PUNCHING
AND EYELETING LEATHER AND OTHER MATERIALS."
The machine forming the subject of the present Invention consists of a frame of
any convenient form, as for example that of an ordinary sewing machine, such
frame bearing three arms, an upper, an intermediate, and a lower one, each working
in bearings or centres. One end of the uppermost arm, which forms the punching
lever, is rounded, and is furnished with a block or flange collar, so constructed as to
be capable of a rotary motion and of traversing along the said arm, such movement
being imparted to it by a combination of levers and cams at the other end of the
arm, the motion round the arm being for changing the punches and dies, which are
affixed to the block or collar in the form of a star. The second or intermediate
arm has for its bearings the shaft of the first or upper arm; one of its ends is
employed as an ordinary presser, whilst the other by aid of cams works in a similar
manner to the first-named one. The lower arm is made to contain the bottom die
or bolster or dies or bolsters, as the case may be, the same being made in a single
block or plate, moving in a manner to correspond with the motion of the top dies
or punches. The flanged collar bearing the punches and dies, as well as the
bottom dies, are held in position by screws, pistons, springs, or their equivalents.
In the accompanying Drawings Fig. 1 is an elevation showing the top arm A
bearing the rotary flanged collar containing the punches and dies; this part B is
shown in section; Fig. 2 is an end view of portion of the top arm, showing the
centres or bearings in which it works; Fig. 3 is an elevation of the bottom arm
with the block Č bearing the bottom dies or bolsters shown in section; D is a
thumbscrew for turning the block; Fig. 4 is a plan of this bottom arm, showing
the block C and presser foot E in dotted lines in this Figure and in side elevation
Fig. 1; Fig. 5 is an end view of the block or collar B bearing the punches or dies;
F, Fig. 1, is a lever for imparting transverse motion to the block B, and G is a
steadying pin and spring to the same.
Having thus described my Invention, what I claim and desire to secure by Letters
Patent is,―
First. The flanged collar or block bearing the punches and dies arranged in the
form of a star or otherwise, such block being capable of a rotary motion round the
arm bearing it (for changing the punches), and also of traversing along the said
arm, these movements being imparted to the block by a combination of cams and
levers or their equivalents at the opposite end of the arm.
Second. The bottom dies or bolsters made in a single block or plate caused to
move in such a manner as to correspond with the movements of the top dies or
punches by moving in a groove or recess arranged for the purpose.
In witness whereof, I, the said Frederick George Myers, have hereunto set
my hand and seal, this Fourth day of April, in the year of our Lord
One thousand eight hundred and seventy-seven.