Improvements in Band Saw Machines for Cutting Wood and other Materials.
Year: 1892

page_text: Date of Application, 18th Oct., 1892
Complete Specification Left, 12th July, 1893-Accepted, 19th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in Band Saw Machines for Cutting Wood and other
Materials.
I, THOMAS NIELD ROBINSON, of the Firm of Thomas Robinson and Son Limited,
of Railway Works, Rochdale, in the County of Lancaster, Machine Makers, do
hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in band saw machines and the object of
my invention is to adapt a self acting feed motion to such machines.
In carrying my invention into effect I secure an adjustable bracket upon the
machine frame; the bracket carries a vertical spindle with a worm wheel at the
lower end driven preferably by a worm on a short shaft which receives motion
from a small pulley on the main driving shaft of the machine.
On the vertical spindle is mounted a swivel bracket which carries a feed roller
or rollers on a spindle driven by a chain or otherwise from the vertical spindle
before mentioned; a band which is secured to the swivel bracket passes over guide
pulleys and supports a weight for keeping the feed roller or rollers up to the
timber or other material to be cut which bears against an adjustable fence, secured
to the table of the machine.
When the self acting feed motion is not required the weight is removed and the
swivel bracket and feed roller or rollers can then be turned back out of the way.
Dated this 17th day of October 1892.
H. B. BARLOW & GILLETT,
Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Band Saw Machines for Cutting Wood and other
Materials.
I, THOMAS NIELD ROBINSON, of the Firm of Thomas Robinson and Son Limited,
of Railway Works, Rochdale, in the County of Lancaster, Machine Makers, do
hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
My invention relates to improvements in band saw machines and the object of
my invention is to adapt a self acting feed motion to such machines.
In carrying my invention into effect I secure an adjustable bracket upon the
machine frame; the bracket carries a vertical spindle with a worm wheel at the
lower end driven preferably by a worm on a short shaft which receives motion
from a small pulley on the main driving shaft of the machine.
On the vertical spindle is mounted a swivel bracket which carries a feed roller
or rollers on a spindle driven by a chain or otherwise from the vertical spindle
before mentioned; a band which secured to the swivel bracket passes over guide
pulleys and supports a weight for keeping the feed roller or rollers up to the
timber or other material to be cut which bears against an adjustable fence, secured
to the table of the machine.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying two sheets of drawings reference being had
to the figures and letters marked thereon.
Fig. 1 is a side elevation and Fig. 2 a plan of my improved band saw machine
for cutting wood and other materials.

page_text: In the drawings,-a is the frame of the band saw machine, b the band saw which
runs round a pulley on the main shaft d of the machine and round a pulley e mounted
in a bracket f fitted in slideways on the frame a, and on the table a¹ of the machine
is mounted an adjustable fence g for the timber h to rest against; all these parts
are of the usual or other convenient construction.
My improved self acting feed mechanism is carried by a bracket i bolted to the
frame of the machine; in this bracket is mounted a vertical spindle j to which is
secured at its lower end a worm wheel k, in gear with a worm l, keyed to a shaft m
which carries a pulley n driven by a strap m¹ from a small pulley d' on the driving
shaft d. On the vertical spindle ; is mounted a swivel bracket o that carries a
spindle p on which is a feed roller q driven by means of chain wheels j¹ and p¹, secured
to the spindles j and p respectively, and a chain r; a band or cords secured to the
swivel bracket o passes over a guide pulley t and supports a weight w which draws
the feed roller g against the piece of timber or other material to be cut which
rests against the adjustable fence 9.
In order to adjust the swivel bracket o and feed roller for different thicknesses
of timber or to enter a piece of timber between the fence and feed roller I form a
tail piece o¹ on the bracket o and employ a screw a and hand wheel a¹ so that by
turning the latter the feed roller can be adjusted relatively to the fence g.
When the self acting feed motion is not required the weight is removed and the
swivel bracket and feed roller or rollers can then be turned back out of the way.'
'
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
In a band sawing machine, the arrangement use and application of a swivel
adjustable bracket, carrying a driven feed roller, in combination with means for
holding the said roller in contact with the timber or other material to be cut, which
bears against an adjustable fence substantially as and for the purposes described with
reference to the drawings annexed.
Dated this 8th day of July 1893.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicant.