IMPROVEMENTS IN THE CONSTRUCTION OF MACHINERY FOR THE MANUFACTURE OF IRON. WEDGE PACKING
Year: 1877

page_text: LETTERS PATENT to Thomas Booth, of West Hartlepool, in the County of
Durham, for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF
MACHINERY FOR THE MANUFACTURE OF IRON. WEDGE PACKING."
Sealed the 27th July 1877, and dated the 1st June 1877.
COMPLETE SPECIFICATION filed by the said Thomas Booth at the Office of
the Commissioners of Patents on the 1st June 1877.
THOMAS BOOTH, of West Hartlepool, in the County of Durham.
"IMPROVEMENTS
IN THE CONSTRUCTION OF MACHINERY FOR THE MANUFACTURE OF IRON WEDGE
PACKING."
-
My said Invention relates to certain improvements in machinery for the manu-
facture of iron wedge packing, which packing has been previously manufactured
either by hand or by the use of steam hammers, and is principally used in the con-
struction of iron ships and vessels.
The wedge packing, as is well known, consists of certain lengths of iron bar of
any desired thickness and breadth, which lengths have hitherto been reduced to the
required shape and size by means of manual labour or by the action of steam
hammers. Under my said Invention the whole operation is performed mechanically,
and in a much more efficient and rapid manner than heretofore.
The machine which forms the subject of my said Invention is of the same
character as the mills ordinarily employed for rolling iron, consisting of a frame
having vertical standards mounted on sole plates, which latter are securely fixed to
a suitable foundation. The standards are provided with gudgeons for the reception
of the ends of the axles of the rollers by which the manufacture of the wedges is
effected. Such rolls aro of the well known kind, and are formed of solid forged
malleable iron or malleable cast iron, or cast iron, cast steel, or brass with eccentric
recesses therein of any desired depth and width, according to the size of the iron to
be operated upon, the recesses being so placed that when the rolls are rotated the
spaces between the eccentric recesses are successively lessened and enlarged.
Toothed wheels are keyed on to the extremities of the axles of the rolls, such wheels
gearing into each other and being caused to rotate by means of any suitable motive
power and appliances, as is well understood, but by preference in the manner herein.
D

page_text: after mentioned :—The iron or which the wedges are to be manufactured is cut to
the required lengths, and having been brought to a red heat in a furnace the lengths
are inserted into the eccentric recesses of the rolls at the deepest part thereof, when
by a half revolution of the rolls the iron is carried through the shallowest parts of
the eccentric recesses, thus reducing the iron to the required tapered or wedge-like
shape. The machine is by preference worked at such a rate of speed as to make
from fifteen to twenty revolutions per minute.
I will now proceed to refer to the annexed Drawings from which the nature of
my said Invention will be more clearly understood.
Figure 1 is a longitudinal view of the apparatus shewing. the upper roll in longi-
tudinal section, and also shewing the recesses as they present enlarged and
diminished spaces during the revolution of the rolls.
Figure 2 shows one of the rolls detached.
Figure 3 is an end view showing the driving gear.
Figure 4 is a cross section of a roll shewing one of the eccentric recessos.
Figure 5 shews the mode in which I prefer the recesses shall be alternately
arranged.
A, A, aro the rolls, and B, B, the wheels mounted on the ends of the respective
axles; C, C, is a horizontal shaft, on which are mounted the belt sheaves D, D, the
fly wheel E and the pinion F gearing into the spur wheel H, and by which latter
the shaft G is driven. On the shaft G is mounted the pinion I which gears into the
spur wheel J. The latter is mounted on the axle of the lower roll and gears into
that of the wheel on the axle of the upper roll, and upon the motive power (which
may be of any suitable nature) being applied, the whole apparatus is set in motion.
Having thus declared and ascertained the nature of my said Invention, and in
what manner the same is to be performed, I would observe in conclusion that what
I consider novel and original and therefore claim as constituting my said Invention
is, the combination and arrangement of mechanism, substantially as and for the
purposes herein-before described and set forth, or any mere modifications thereof.
In witness whereof, I, the said Thoinas Booth, have hereunto set my hand and
seal, this Twenty-second day of May, in the year of our Lord One thousand
eight hundred and seventy-seven.
SAAME
Signed, sealed, and delivered by
the said Thomas Booth, in
the presence of
EDW. MAXWELL,
Solicitor's Clerk,
West Hartlepool.
ТОПAD DOVID, 14.8.7