IMPROVEMENTS IN AND APPLICABLE TO CIRCULAR SAWING MACHINERY
Year: 1876

page_text: LETTERS PATENT to Thomas Pugh Richards, of Liverpool, in the County of
Lancaster, for the Invention of "IMPROVEMENTS IN AND APPLICABLE TO
CIRCULAR SAWING MACHINERY."
Sealed the 29th December 1876, and dated the 19th October 1876.
PROVISIONAL SPECIFICATION left by the said Thomas Pugh Richards at the
Office of the Commissioners of Patents on the 19th October 1876.
THOMAS PUGH RICHARDS, of Liverpool, in the County of Lancaster.
MENTS IN AND APPLICABLE TO CIRCULAR SAWING MACHINERY."
"IMPROVE-
My Invention relates to a novel construction of continuous "saw feed" to be
applied to circular sawing machinery, and consists of a vertical shaft which carries
two radial arms, between which is vertically mounted a toothed or serrated roller.
The vertical shaft is mounted at the side of the saw bench and carries a worm wheel
and drum. The wheel and drum run loose on the shaft and receive motion from a
horizontal shaft which carries a worm; this shaft receives motion from the saw
spindle. Motion is imparted to the feeding roller by an endless chain or band
passing round the said roller and receiving motion from the drum. The vertical
shaft is provided with a lever to which is attached a cord or chain led over a pulley
and carrying a weight; by this means the feeding roller is kept against the face of
the wood. The apparatus is so constructed that the, drum can be utilized for
applying a rope feed. The whole apparatus can also be readily removed from the
bench.
That the extent of my Invention may be clearly understood and defined I would
state that I am aware that in Casson's Patent, No. 1337, A.D. 1868, the Inventor
describes a radial saw feed, and I would have it understood that I do not in any
way claim the principle of a radial saw feed, my present Invention being confined
to the particular arrangement of parts by which I obtain the following advantages,
namely, great reduction of cost, simplicity of parts, capability of removal and
application as a rope feed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Thomas Pugh Richards in the Great Seal Patent Office on the 14th April
1877.
THOMAS PUGH RICHARDS, of Liverpool, in the County of Lancaster.
MENTS IN AND APPLICABLE TO CIRCULAR SAWING MACHINERY.".
"IMPROVE-
My Invention relates to a novel construction of continuous "saw feed" to be
applied to circular sawing machinery, and consists of a vertical shaft which carries
two radial arms, between which is vertically mounted a toothed or serrated roller.
The vertical shaft is mounted at the side of the saw bench and carries a worm wheel
and drum. The wheel and drum run loose on the shaft and receive motion from a
horizontal shaft which carries a worm; this shaft receives motion from the saw
spindle. Motion is imparted to the feeding roller by an endless chain or band
passing round the said roller and receiving motion from the drum. The vertical
shaft is provided with a lever to which is attached a cord or chain led over a pulley
and carrying a weight; by this means the feeding roller is kept against the face of
the wood. The apparatus is so constructed that the drum can be utilized for carry-
ing a rope feed. The whole apparatus can also be readily removed from the bench.
That the extent of my Invention may be clearly understood and defined I would
state that I am aware that in Casson's Patent, No. 1337, A.D. 1868, the Inventor
describes a radial saw feed, aud I would have it understood that I do not in any
way claim the principle of a radial saw feed, my present Invention being confined
to the particular arrangement of parts by which 1 obtain the following advantages,
namely, great reduction of cost, simplicity of parts, capability of removal and
application as a rope feed.
In order that my Invention may be properly understood I will now proceed, with
the aid of the accompanying Sheet of Drawings, more particularly to set forth the
system, mode, or manner, in or under which the same is or may be used or practically
carried into effect.
The accompanying Sheet of Drawings are marked with letters and figures of
reference corresponding with those in the following explanation. Like letters denote
similar parts throughout the various views.
Figure 1 is an end elevation of a circular saw bench fitted with a saw feed con-
structed according to my Invention; Figure 2 is a plan of Figure 1.
Figure 3 is a detailed side elevation of a double roller saw feed according to my
Invention Figure 4 is a plan of Figure 3.
Figure is a perspective view of a circular saw bench fitted with my Invention.
Upon reference it will be seen that a is a vertical shaft, which is fitted to the saw
bench A. The vertical shaft a carries two radial arms b, b¹, between which is
vertically mounted a toothed or serrated roller or rollers c. d is a sleeve or hollow
shaft mounted on the shaft a and carrying the worm wheel e and a drum h. Motion
is imparted to the worm wheel e and drum h by means of the worm i which is
mounted on a horizontal shaft k at the side of the saw bench, and which receives
motion from the saw spindle. The feeding roller or rollers c are driven by an endless
chain or bands which passes round the said roller or rollers and receives motion
from the drum h. The endless chain or bands may be kept tight by making the
carrying shaft v eccentric where it passes through the radial arms b, b¹, and holding
the shaft in position by a saddle key. The vertical shaft a is provided with a
lever x, to which is attached a cord y leading over suitable pulleys carrying a
weight; by this means the feeding roller or rollers c are kept against the face of
the wood.
The apparatus is so constructed that the radial arms b, b¹, together with the
rollers c, can be removed from the shaft a and the drum h utilized for carrying a
rope feed.
A saw feed constructed according to this Invention can be fixed to any saw bench
that has a reliable fence. The saw feed can also be applied to band and deal saws,
as will be understood.

page_text: Having now described and particularly ascertained the nature of my said Inven-
tion, and the system, mode, or manner in or under which the same is or may be
used or practically carried into effect, I would observe in conclusion that what I
consider to be novel and original and therefore claim as the Invention secured to me
by the herein-before in part recited Letters Patent is, the arrangement and con-
struction of a saw feed consisting of a vertical shaft such as a, radial arms such as
b, b', a roller or rollers such as c, sleeve such as d, a worm and drum such as e and h, an
endless band such as 8, a lever such as x, arranged in relation to each other, part to
part, as shown, and operating in the manner as herein described.
In witness whereof, I, the said Thomas Pugh Richards, have hereunto set my
hand and seal, this Twelfth day of April, in the year of our Lord One
thousand eight hundred and seventy-seven.
THOMAS PUGH RICHARDS. (L.S.)