Improvements in Automatic Feed and Guide for Saw-benches.
Year: 1890

page_text: Date of Application, 19th M.y, 1890
Complete Specification Left, 17th Feb., 1891-Accepted, 21st Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Automatic Feed and Guide for Saw-benches.
I, FREDERIC RICHARD BOULTBEE, M.I.M.E., of 4, Loris Road, West
Kensington Park, in the County of London, Mechanical Engineer, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to produce an automatic feed and guide for saw
benches which obviates the danger that is attached to cutting and manipulating
short and very narrow pieces of wood by hand it is also useful for turning to
account waste pieces of wood which are now generally cast aside it will also be
found a convenient means for cutting parallel pieces of the least possible thickness,.
wedges of all sizes, bevilling mitring, cutting angles and under cutting.
The invention consists of applying or adapting to ordinary circular band or
reciprocating saw-benches or otherwise an automatic reciprocating feed block
working in guides and so constructed as to allow of a wooden fence and tilting
cradle being attached to it the former of which works only on the off side and.
behind the saw, this fence is capable of being changed and its shape or form.
adapted to the class of work required to be done.
The feed-block receives its motion from a revolving disc or crank placed at a
suitable distance from behind and to the side of the saw-bench. The feed-block
and disc or crank are connected together by an adjustable rod, in order that the
length of the stroke of the feed-block may be varied at will-also both the feed-
block and disc are constructed with slots so as to admit of the connecting rod being
adjusted, the former with a horizontal slot and the latter with one near its centre:
running towards the periphery. The disc or crank runs on a separate and.
independent shaft running in journals, which also carries a pulley giving motion to
the disc or crank.
The wooden fence being changeable can have either a parallel wedge shape or
bevil side as may be required. In order to undercut a piece of wood or block of
timber an adjustable tilting cradle is attached to the feed-block this cradle
reciprocates with the feed-block and works only on the near side of the saw, it is
raised or lowered at an angle sufficient for the amount of undercut that is.
required.
The whole of the machinery receives its motion from pulleys and belts.
In order to work this invention the wood required to be cut is placed and held
by a spring or lever in front of the feed block when it is at the end of the back
stroke then on its forward motion the timber is thrust against the saw and cut.
through on the completion of the stroke, this continues until the piece of timber is
sawn into the required number of pieces when a fresh piece is again placed in.
position.
The speed of the feed-block is regulated by the size of the driving, pulleys.
יהנו מ
1000
-COMPLETE SPECIFICATION.---
Improvements in Automatic Feed and Guide for Saw-benches.
I, FREDERIC RICHARD BOULTBEE, of 4, Loris Road, West Kensington Park,
in the County of London, Mechanical Engineer, 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 :-
The object of this invention is to produce an automatic feed and guide for

page_text: saw-benches, which obviates the danger that is attached to cutting and manipulating
short and very narrow pieces of wood by hand. It is also useful for turning to
account waste pieces of wood which are now generally cast aside, it will also be
found a convenient means for cutting parallel pieces of the least possible thickness,
wedges of all sizes, bevelling, mitreing, cutting angles, and under cutting.
Reference to the accompanying drawings forming part of the Specification
wherein Fig. 1 shows a front view, Fig. 2 a plan and Fig. 3 an end view, will define
the working of this invention.
The same letters of reference indicate the same parts in all the figures.
The invention consists of applying or adapting to ordinary circular, band or
reciprocating saw-benches or otherwise an automatic reciprocating feed block A
working in guides B and so constructed as to allow of a wooden fence C and tilting
cradle being attached to it, the former of which works only on the off side and
behind the saw. This fence C is capable of being changed and its shape or form
adapted to the class of work required to be done. The feed block A receives its
motion from a revolving disc or crank D placed at a suitable distance from behind
and to the side of the saw-bench. The feed-block A and disc or crank D are
connected together by an adjustable rod E in order that the length of the stroke
may be varied at will, also both the feed block A and disc D are constructed with
slots F and F¹ so as to admit of the connecting rod E being adjusted. The former
with a horizontal slot F and the latter with one F from near its centre, running
towards the periphery. The disc or crank D runs on a separate or independent
shaft running in journals, which also carries a pulley G giving motion to the disc
or crank D.
The wooden fence C being changeable can have either a parallel, wedge shape
or bevel side as may be required. In order to undercut a piece of wood or block
of timber an adjustable tilting cradle is attached to the feed block A. This cradle
reciprocates with the feed block and works only on the near side of the saw. It is
raised or lowered at an angle sufficient for the amount of undercut that is required.
The whole of the machinery receives its motion from pulleys and belts in the usual
manner.
In order to work this invention the wood required to be cut is placed and held by
a spring or lever H in front of the feed block A. when at the end of the back stroke,
then on its forward motion the timber is thrust against the saw and cut through on
the completion of the stroke, this continues until the piece of timber is sawn into
the required number of pieces when a fresh piece is again placed in position. The
speed of the feed-block is regulated by the size of the driving pulleys.
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. An automatic reciprocating feed and guide for saw-benches substantially as
described and for the purposes specified.
2. The combination of a changeable fence arranged substantially in the manner
and for the purposes specified.
Dated this Seventeenth day of February 1891.
FREDERIC KICHAKD BUULTBEE.