IMPROVE- MENTS IN SAWING MACHINES
Year: 1876

page_text: LETTERS PATENT to Samuel William Worssam, of Oakley Works, King's
Road, Chelsea, in the County of Middlesex, for the Invention of "IMPROVE-
MENTS IN SAWING MACHINES."
Sealed the 23rd May 1876, and dated the 29th March 1876.
PROVISIONAL SPECIFICATION left by the said Samuel William Worssam at
the Office of the Commissioners of Patents on the 29th March 1876.
SAMUEL WILLIAM WORSSAM, of Oakley Works, King's Road, Chelsea, in the
County of Middlesex. "IMPROVEMENTS IN SAWING MACHINES."
The Invention has for its object improvements in that class of sawing machines
known as "equilibrium saw frames."
Heretofore" equilibrium saw frames" have, according to one arrangement, been
provided with two separate roller feeding apparatuses in order to feed each plank or
deal independently of the other, but the hand wheels employed to regulate the bite
of the feed rolls, as also the feed wheels, being placed one on each side of the
machine, rendered it necessary to employ two men to attend to the machine or
caused considerable inconvenience on account of the necessity for the attendant
going round from the one side of the machine to the other to attend to the two
feeding apparatuses, in addition to which a "roller feed" is not so simple and
reliable as a "rack feed."
According to another arrangement a single rack feed was employed to feed both
deals or planks, but on account of the feed of both deals or planks being
simultaneous and equal considerable difficulty was experienced, as from various
circumstances the work done by the saws would be unequal, and greater strain
would be thrown on one set than on the other set, whilst when different lengths of
deals or planks were being cut the one deal or plank would be finished before the
other, and loss of time and power thereby caused.
In both arrangements before described further disadvantage was experienced
from the fact that the feed was going on during both the up and down strokes of
the saws.
According to my Invention I use two separate "racks" placed side by side
intermediate of the two saw frames, and I also place the feed wheels both on the
same side of the machine, thereby enabling the feed of each deal or plank to be
effected and regulated independently of the other by means of a rack feed, and
Price 6d1

page_text: thus a single attendant is enabled to attend to both feed wheels from one side of
the machine, by which means I obtain all the advantages of a rack feed, and save
expense in attending the machine. If desired, however, the feed wheels may be
placed one on each side of the machine, as heretofore.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel William Worssam in the Great Seal Patent Office on the 29th
September 1876.
SAMUEL WILLIAM WORSSAM, of Oakley Works, King's Road, Chelsea, in the
County of Middlesex. "IMPROVEMENTS IN SAWING MACHINES."
The Invention has for its object improvements in that class of sawing machines
known as "equilibrium saw frames."
Heretofore "equilibrium saw frames" have, according to one arrangement, been
provided with two separate roller feeding apparatuses in order to feed each plank
or deal independently of the other, but the hand wheels employed to regulate the
bite of the feed rolls, as also the feed wheels, being placed one on each side of the
machine rendered it necessary to employ two men to. attend to the machine, or
caused considerable inconvenience on account of the necessity for the attendant
going round from the one side of the machine to the other to attend to the two
feeding apparatuses, in addition to which a "roller feed" is not so simple and
reliable as a "rack feed."
According to another arrangement a single rack feed was employed to feed both
deals or planks, but on account of the feed of both deals or planks being
simultaneous and equal considerable difficulty was experienced, as from various
circumstances the work done by the saws would be unequal, and greater strain
would be thrown on one set than on the other set, whilst when different lengths of
deals or planks were being cut the one deal or plank would be finished before the
other, and loss of time and power thereby caused.
In both arrangements before described further disadvantage was experienced
from the fact that the feed was going on during both the up and down strokes of
the saws.
According to my Invention I use two separate "racks" placed side by side
intermediate of the two saw frames, and I also place the feed wheels both on the
same side of the machine, thereby enabling the feed of each deal or plank to be
effected and regulated independently of the other by means of a rack feed, and
thus a single attendant is enabled to attend to both feed wheels from one side of
the machine, by which means I obtain all the advantages of a rack feed, and save
expense in attending the machine. If desired, however, the feed wheels may be
placed one on each side of the machine, as heretofore.
And in order that my said Invention may be more clearly understood and
readily carried into effect, I will proceed, aided by the accompanying Drawings,
more fully to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is an elevation, and Figure 2 a plan of an equilibrium saw frame
having my Invention applied thereto.
a is the frame of the machine; b is the driving or crank shaft having cranks
b, b, formed thereon, which by connecting rods c, d, give the required recipro-
cating motion to the swing frames e, f, as is now well understood. Instead,
however, of employing two separate roller feeding apparatusos or a single rack

page_text: racks g, h, are taken into by and receive independent motion respectively from
pinions, j. The pinion is mounted on one end of the sleeve or tubular axis i,
on the other end of which is fixed a toothed wheel, which is taken into by and
receives motion from a pinion k, which is driven by the silent feed motion l. The
pinion is mounted on the solid shaft j, on one end of which is fixed a toothed
wheel, which is taken into by and receives motion from a pinion m which is
driven by the silent feed motion n. The silent feed motions and n are constructed
and operated in the manner now well understood, but according to my Invention I
place them both on the same side of the machine, and, as before described, I cause
them to operate the feed racks g, h, independently of each other.
Although according to one part of my Invention I place the feed wheels both on
the same side of the machine they may, if desired, be placed one on each side of
the machine, and when placed both on the same side of the machine they may be
used in combination either with rack feeding apparatus or with roller feeding
apparatus.
Having thus described the nature of my said Invention, and the mode in which
I carry the same into effect, I would have it understood that what I claim is,―
Firstly. The combination with that class of sawing machines known as "equili-
brium saw frames" of two separate feeding racks placed side by side, and working
independently of each other in mannner, substantially as herein shown and
described.
And, Secondly. I claim placing the feed wheels both on the same side of the
machine, whether used in combination with two feeding racks or with two roller
feeds, in manner and for the purpose substantially as herein shown and described.
In witness whereof I, the said Samuel Willian Worssam, have hereunto set
my hand and seal, this Twenty-eighth day of September, in the year of
our Lord One thousand eight hundred and seventy-six.
SAMUEL WILLIAM WORSSAM. (L.S.)