Improvements in Stone Dressing Machinery.
Year: 1894

page_text: Date of Application, 1st Mar., 1894
Complete Specification Left, 30th Nov., 1894-Accepted, 5th Jan., 1895
PROVISIONAL SPECIFICA LIŪN.
Improvements in Stone Dressing Machinery.
I, GEORGE ANDERSON, of the Firm of George Anderson and Company, Engineers
and Founders, Arbroath, in the County of Forfar, Scotland, do hereby declare the
nature of this invention to be as follows:-
My invention relates to improvements in stone dressing machinery of the type in
which the stone is placed and properly secured upon a table which is made to
traverse backward and forward beneath a cross slide carrying cutting tools, that is
to say the machine is somewhat similar to an iron planing machine. Such cross
slide and cutting tools are made to turn over at the end of the stroke of the table,
in order that work may be done on the stone during both the forward and backward
strokes, and it is to improve the method of actuating the turning over of the cross
slide and tools that is the object of my invention.
In carrying out my invention, I employ an upright shaft, preferably of square
section, its lower portion terminating in a fixed journal attached to the bed plate
of the machine, a bracket on the cross slide guiding and retaining it in a vertical
position.
The bracket on the cross slide carries a bush which is free to rotate, the upright
shaft passing through a square hole in same, this device being for the purpose of
allowing the square shaft to partially rotate backward and forward, that is to say
to vibrate and at the same time to allow of such bush to slide up and down upon
it along with the cross slide. An arm, mounted on the upright shaft, is caused to
move to and fro in a horizontal plane by the action of the reciprocating table, in
this manuer causing another somewhat similar arm incorporated with the sliding
bush to move in like manner. The cross slide is carried in two journals, which
may be made to slide up and down in the known way, it being made to vibrate by
the action of the sliding and reciprocating arm on the upright shaft. The motion
of the reciprocating arm is communicated to the cross slide by means of a coupling
rod provided with universal joints at each end, in order that it may accommodate
itself to the varying relative positions of such cross slide and reciprocating arm.
The known air cylinder is employed to check the motion of the cross slide when it
is being turned over.
Dated this 27th day of February 1894.
COMPLETE SPECIFICATION.
Improvements in Stone Dressing Machinery.
I, GEORGE ANDERSON, of the Firm of George Anderson and Company, Engineers
and Founders, Arbroath, in the County of Forfar, Scotland, 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 stone dressing machinery of the type
in which the stone is placed and properly secured upon a table which is made to

page_text: traverse backward and forward beneath a cross slide carrying cutting tools, that is
to say the machine is somewhat similar to an iron planing machine. Such cross
slide and cutting tools are made to turn over at the end of the stroke of the table,
in order that work may be done on the stone during both the forward and backward
strokes, and it is to improve the method of actuating the turning over of the cross
slide and tools that is the object of my invention.
In order that my invention may be properly understood and readily carried into
effect, I have hereunto appended three explanatory sheets of drawings in the several
figures of which corresponding parts are marked with the same numerals of
reference.
Figure 1. (Sheet 1.) is a side elevation; Figure 2. (Sheet 2.) a view looking in
the direction of the arrow Z. (Figures 1. and 3.); Figure 3. (Sheet 3.) being a
plan of a stone dressing machine as fitted with my improvements.
In carrying out my invention, I employ an upright shaft 10, preferably of square
section, its lower portion terminating in a fixed journal 11. attached to the bed
plate 12. of the machine, a bracket 13. on the cross slide 14. guiding and retaining
it in a vertical position. The bracket on the cross slide carries a bush 15. which is
free to rotate, the upright shaft 10. passing through a square hole in same, this
device being for the purpose of allowing the square shaft to partially rotate
backward and forward, that is to say to vibrate and at the same time to allow such
bush 15. to slide up and down upon it along with the cross slide. An arm 16.
mounted on the upright shaft, is caused to move to and fro in a horizontal plane by
the action of the reciprocating table 17, in this manner causing another somewhat
similar arm 18, incorporated with the sliding bush to move in like mauner.
cross slide is carried in two journals 19, which may be made to slide up and down
in the known way, it being made to vibrate by the action of the sliding and
reciprocating arm 18. on the upright shaft 10. The motion of the reciprocating
arm 18. is communicated to the cross slide by means of a coupling rod 20. provided
with universal joints at each end, in order that it may accommodate itself to the
varying relative positions of such cross slide and reciprocating arm. The known air
cylinder 21. is employed to check the motion of the cross slide when it is being
turned over.
The
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 :-
(1.) In stone dressing machinery of the type described and illustrated in the
annexed Specification, the herein before described combination and arrangement of
parts for actuating the turning over of the cross slide and tools, such parts,
essentially consisting of the reciprocating table 17, vibrating arm 16, journal 11,
upright shaft 10, coinbined journal and arm 13, 15, and 18, coupling rod 20, cross
slide 14, and air cylinder 21.
Dated this 28th day of November 1894.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.