Improvements in Stone Sawing Frames.
Year: 1897

page_text: Date of Application, 20th Sept., 1897
Complete Specification Left, 15th Feb., 1898-Accepted, 19th Mar., 1898
PROVISIONAL SPECIFICATION.
Improvements in Stone Sawing Frames.
We, SAMUEL KEIGHLEY and REUBEN TURNER HARDISTY, Mechanics, both of
Robin Hood, near Wakefield, in the County of York, do hereby declare the
nature of this invention to be as follows:
The object of our invention is to prevent the wearing of the pillars of stone
sawing frames, and to obtain perfect parallel sawing.
In the present construction of saw frames, the swinging frames are constantly
wearing the pillars, and by so doing gives too much play to the saw blades, so that
they do not saw evenly straight or parallel, to obviate this we employ on the sides
of each pillar where the frame rubs, a bracket and adjustable sliding plate, with
or without antifriction rollers, the said plate is adjusted in the bracket by bolts
and slots; so that as the saw-frame is dogged up with plates, the bracket can be
adjusted accordingly, the brackets are secured by caps at their top and bottom,
and slide up and down the pillar with the frame as the stone is sawn.
. JOHN E. WALSH,
Royal Exchange Chambers, Leeds,
Patent Agent for the Applicants:
Improvements in Stone Sawing Frames.
We, SAMUEL KEIGHLEY and REUBEN TURNER HARDISTY, both Mechanics, of
Robin Hood, near Wakefield, in the County of York, 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 our invention is to prevent the wearing of the pillars of stone
sawing frames, and to obtain perfect parallel sawing.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a side elevation in part section, of a saw-frame pillar and swinging
frame, with our improvements applied.
Fig. 2 is a front elevation of the pillar with swinging frame removed to show
our improvements.
Fig. 3 shows a modification of the sliding plate E shown in Figs. 1 and 2.
Fig. 4 is a modification of Fig. 1.
Fig. 5 is a front elevation of Fig. 4.

page_text: In the present construction of saw frame, the slide plate A of the swinging
frame B is constantly wearing the pillars C, thus giving play to the saw blades
so that they do not saw evenly, straight, or parallel.
To obviate this we employ, on one or both sides of each pillar C, a bracket D,
with an adjustable sliding plate or plates E for the slide plate A to rub or roll
against. The sliding plates E are adjusted in the bracket by means of bolts F
and slots G, so that when the frame is dogged up with plates the said sliding
plates E can be adjusted accordingly.
Each sliding plate E may if desired be provided with antifriction rollers H
(as shown in Figs. 3, 4, and 5).
In cases where the swinging frame B is suspended from a cross shaft J by
swing rods K (see Figs. 1 and 2), the brackets D are secured at top and bottom
by caps Land M, the cap L being connected by_rods N at each side of the pillar
to the end slide bracket P of the said cross bar J.
By this means the brackets D are made to slide or roll up and down the pillar C
with the motion of the frame as the stone is sawn.
In cases where the swinging frame B is suspended direct by means of chains,
thus dispensing with the use of the cross shaft J and swing rods K (see Figs. 4
and 5), the brackets D may be supported by means of small adjustable runners
or rollers R running on the edge of the frame B.
This arrangement causes the brackets D and sliding plates E to rise and fall
with the motion of the swinging frame B.
Small runners or rollers S may be provided to lessen the friction of the brackets D
on the pillar, and if necessary a cross shaft or support may be provided for the
brackets D under the swinging frame B.
Having now particularly described and ascertained the nature of our said in-
vention, and in what manner the same is to be performed, we declare that what we
claim is:-
1. The employment, for the purpose of preventing the constant wearing of the
pillars of stone-sawing frames by the swinging frame, and of obtaining a perfectly
parallel motion of the swinging frame, of brackets and adjustable plates, with
or without antifriction rollers, substantially as shown and described.
2. The combination, for the purpose of protecting the pillars of saw frames from
wear, of the brackets D, slide plates E, caps L and M, and rods N for connecting
the cap L to the slide bracket P of the cross bar J, substantially as shown and
described.
3. The combination, for the purpose of protecting the pillars of saw frames
from wear, of the brackets D, slide plates E (with or without antifriction rollers H),
supporting runners or rollers R, and antifriction rollers S, substantially as shown
and described.
1000