Year: 1886

page_text: Date of Application, 22nd Dec., 1886
Complete Left, 22nd Sept., 1887
Complete Accepted, 4th Nov., 1887
declare the nature of this invention to be as follows:
This invention relates to improvements in feed apparatus for feeding or conveying
timber to circular Saws its object being to provide a simple & effective apparatus
for the purpose.
The feed has in some machines been obtained by means of rollers rotated by means
of cog or bevil wheels with the necessary gearing and in others by means of travelling
bands ropes or chains to which one end of a bar is connected the other end being
attached to the timber.
This invention is designed to do away with the wheels & gearing & yet retain the
rollers for the feed.
It consists essentially of a continuous chain or band receiving motion from a drum
or wheel on a revolving wheel and one two or more rollers with sheaves at their base
round which the chain or band is caused to pass.
In carrying out the invention an endless band or chain is passed round a number of
sheaves or carrying drums or rollers and round a rotating wheel sheave or drum from
which it receives motion. On the bed of the machine are one two or more rollers
with sheaves at one end round or against which the band or chain also passes. These
rollers are mounted in slots or on movable brackets so as to be easily adjusted to the
thickneses or inequalities of the surface of the timber and may either be tightened
into position or left loose so that the weight of the chain or band will hold them with
sufficient force against the timber to feed it. The brackets when used may be some-
what in the shape of lazy-tongs or otherwise arranged. Suitable guide sheaves or
rollers for the chain or band are placed where required.
131
Dember 1886
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
-
Improvements in Circular Saw Benches or Apparatus for Feeding
Timber to Circular Saws.
I, EDWARD HUGHES of Bagilt, in the County of Flint, Saw-maker 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 :—
This invention relates to improvement in feed apparatus for feeding, or conveying
timber to circular saws, its object being to provide a simple and effective apparatus for
the purpose.
Hitherto the feed has in some machines, 'been obtained by means of rollers, rotated
by means of cog or bevel wheels, with the necessary gearing, and in others by means
of travelling bands, ropes, or chains, to which one end of a bar is connected, the other
end being attached to the timber.
This invention it designed to do away with the wheels and gearing, and yet retain
the rollers for the feed.
It consists, essentially, of a continuous chain or band, receiving motion from a drum,
or wheel, on a revolving shaft, and one, two, or more rollers having sheaves at their
bases, round or partly round, which the chain or band is caused to pass.
The way in which I carry out my invention may be best described by reference to
the accompanying drawings, in which,
Figure 1, is an elevation, and
Figure 2, a plan of a circular saw bench, with my invention attached.
A, is the saw bench, B, the fence, and C, the circular saw. D, is an endless band
or chain, which passes round a number of sheaves, or carrying drums E, E¹, supported
on the top and side of the bench A. The band or chain also passes round or partly
round a rotating drum, or chain wheel F, from which it receives its motion, the sail
wheel being mounted on a shaft f, which is driven from any convenient point by a
band passing round, a pulley F. On the bed of the machine are one, two, or more
fluted or grooved rollers G with sheaves or chain wheels G¹ at their lower ends,
around or against which the band or chain D passes, causing them to rotate when the
machine is working. The rollers are caused (as will be hereinafter explained) to
press against the timber to be sawn so as to hold it against the fence B, while at the
same time their rotation propels it forward against the saw. The rollers G may be
mounted in slots, but I prefer to mount them on pivots on the movable brackets H
which are pivoted at h¹ so as to be easily adapted to various thicknesses of timber, or
to the inequalities in the surface thereof. The brackets H with the three guide
wheels E¹ are carried by a frame I, which is capable of being adjusted longitudinally
on the saw bench by means of the slots and the bolts 2. The chain D having a
tendency to straighten itself in passing over the guide wheels E¹ and chain wheels G¹
causes the rollers G to be pressed against the timber J. Where this pressure is
insufficient to give the roller the necessary grip" on the timber, it is increased by
.:

page_text: The
means of the chains g, and weights g³, or if preferred, a spring may be attached to
each of the brackets H to produce the same result. Handles Hare attached to the
pivots or to the brackets H to facilitate the manipulation of the latter.
chain D is kept taut by means of the weight K which is connected with the sliding
bracket carrying one of the guide rollers E.
The timber having been through the machine, is returned when required by the
grooved roller L and runners 1, the roller L being provided with a chain wheel L'
which engages with the endless chain D. A frame M carrying friction rollers m
is usually interposed between the fence B and timber J.
Having now particularly described, and ascertained, the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :-
1. As a timber feeding device for a circular saw, the combination of an endless
travelling band, or chain, with one or more adjustable grooved, or fluted rollers,
rotated by the same, and pressing the timber against the saw fence, and against the
edge of the saw, substantially as shown, and described.
2. In combination with a circular saw bench, a timber feeding device, such as
described in claim 1, driven without the intervention of toothed gearing, substantially
as, and for the purpose described.
3. The timber feeding device as a whole, constructed and arranged substantially
as shown and described.
Dated this 21st day of September 1887