Improvements in Sawing Machinery.
Year: 1889

page_text: Date of Application, 16th Mar., 1889
Complete Specification Left, 20th July, 1889-Accepted, 7th Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in Sawing Machinery.
I, FREDERICK ROBBINS LANE, of Honey Street Woodborough, in the County of
Wiltshire, Merchant, do hereby declare the nature of this Invention to be as
follows:-
This Invention relates to horizontal or vertical sawing machinery and consists in
providing an air cushion to check the saw at the end of each stroke for the purpose
of preventing vibration.
One method of carrying out my Invention consists in forming the backbone of the
saw tubular with a stuffing box at each end through which passes a fixed rod carrying
two pistons so adjusted as to compress the air alternately at each end of the cylinder
as the frame reciprocates.
Instead of using the backbone of the saw as a cylinder separate cylinders may he
placed at each end of the frame, and the pistons attached to rods forming continuations
of the backbone or other part of the saw.
My Invention also relates to improvements in the driving mechanism of horizontal
saws, such mechanism consisting of a driving wheel which imparts rotation to a disc
on the face of which is a swivel stud which works between vertical guides fixed in the
middle of the saw frame. The disc is mounted on a horizontal beam which is free to
slide on the vertical guides of the structural frame and thus the saw frame follows the
motion of the disc as the cutting progresses.
Dated this 16th day of March 1889.
--
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Sawing Machinery.
I, FREDERICK ROBBINS LANE, of Honey Street Woodborough, in the County of
Wiltshire, Merchant, 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 steam, gas, or water power horizontal sawing machines and
the improvements relate principally to the driving mechanism with the object of sim-
plifying the mechanical arrangements for reciprocating the saw, with comparatively
no vibration and less power required, the saw being capable of being reciprocated at
a much higher speed and thereby doing a larger amount of sawing, also enabling it to
cut veneers.
In the accompanying drawings, Figure 1 represents a front elevation of a Hori-
zontal sawing machine constructed according to my Invention, Figure 2 a plan view
thereof, Figure 3 an end elevation, and Figure 4 a partial section taken through
line, on Figure 1.
The frame shown is of the portable type.
The saw E is mounted in a rectangular metal frame composed of two vertical
pieces E', connected by nuts e to the two horizontal rods E', the saw being stretched
between the lower ends of the pieces E' by means of the usual clamps e¹ and nuts e².
To the vertical pieces E' are screwed or bolted slide blocks E which are free to work
in slides F¹, fixed adjustably to the saddle G, which slides upon the posts C on the
slides C, and can be raised or lowered by means of the screws H.
which
The driving mechanism consists of an iron disc J, mounted on a shaft J',
works in bearings formed on or attached to the saddle G. The shaft J also carries

page_text: fast and loose pullies K for the driving belt L to travel around, and a fly wheel M.
On the face of the disc J is a swivel stud j, which works within a yoke formed by
two vertical bars N, which are bored at their ends so as to slide upon the rods E³, of
the rectangular metal frame, being kept at a suitable distance apart by collars n, and
clamped by nuts ; the rods E, as will be observed are thickened in their middle
portions, such thickened portions being screw threaded, by this arrangement the
nuts can slide over the end portions of the rods E, and thus a considerable
amount of screw threading is dispensed with. It will be obvious, that as the disc J
rotates, the stud j, acting alternately on each side of the yoke N, will impart a
reciprocatory motion to the rectangular frame, and consequently to the saw E, the
extent of such motion depending on the distance of the stud j from the centre of the
disc J.
The material to be fed to the saw is mounted on one or more trollies running on
rails, and worked by chain feed, or other suitable form of gearing.
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 horizontal sawing machinery, the mechanism for driving the saw, consisting of
a disc J, provided with a swivel stud working in a yoke N, of the afore described
rectangular saw frame, said disc being rotated by a pulley K and belt L, substantially
as described and illustrated in the accompanying drawings.
Dated this 20th day of July 1889.
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for the Applicant.