Improvements in Horizontal Saw Frames.
Year: 1892

page_text: Date of Application, 23rd Feb., 1892
Complete Specification Left, 15th Nov., 1892-Accepted, 17th Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Horizontal Saw Frames.
I, THOMAS NIELD ROBINSON, of the firm of Thomas Robinson and Son
Limited, of Railway Works, Rochdale, in the County of Lancaster, Machine
Makers, do hereby declare the nature of this invention to be as follows:-
My invention relates to horizontal saw frames and the chief object of my
improvements is to economise the space occupied by the machine.
In carrying my invention into effect I employ three standards on to which the
cross rail of the machine is fitted, two of these standards are placed at the driving
end of the machine near to and preferably behind one another, and the other
standard at the opposite side of the machine, the cross rail is extended slightly
beyond the two standards and has bearings in it for the driving shaft which is
cranked between the bearings.
On the crank is fitted one end of the connecting rod the other end of which is
fitted to a stud at the far end of the saw carriage, which carriage works to and
fro in slideways as usual on the cross rail.
Any convenient means are employed for raising and lowering the cross rail on
the standards.
By adapting the cross rail to carry both the saw carriage and the driving shaft
considerable space is economised.
Dated this 22nd day of February 1892.
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Horizontal Saw Frames.
I, THOMAS NIELD ROBINSON, of the firm of Thomas Robinson and Son
Limited, of Railway Works, Rochdale, in the County of Lancaster, Machine
Makers, 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 horizontal saw frames and the chief object of my
improvements is to economise the space occupied by the machine.
În carrying my invention into effect I employ three standards on to which the
cross rail of the machine is fitted, two of these standards are placed at the driving
end of the machine near to and preferably behind one another, and the other
standard at the opposite side of the machine, the cross rail is extended slightly
beyond the two standards and has bearings in it for the driving shaft which is
cranked between the bearings.
On the crank is fitted one end of the connecting rod the other end of which is
fitted to a stud at the far end of the saw carriage, which carriage works to and
fro in slideways as usual on the cross rail.
And in order that my invention may be fully understood and readily carried into
נח.

page_text: effect I will describe the accompanying two sheets of drawings reference being had
to the figures and letters marked thereon.
Fig. 1 is a front elevation and Fig. 2 a plan view of a horizontal saw frame
constructed according to my invention.
In these views, a represents the base or bedplate of the machine on which are
the rails for supporting the travelling carriage or table b; to the base of the
machine are secured three standards c¹ c2 c³ to which the cross rail d is fitted and
the standards are connected at the top by a beam or girder e which carries
vertical screws for raising and lowering the cross rail d and gearing for actuating
the same; but any other convenient means for raising and lowering the cross rail
on the standards may be employed.
The standards e c² are placed near one another at the driving end of the
machine and the other standard 3 at the opposite side of the machine, the cross
rail d is extended slightly beyond the two standards c¹ and has bearings d¹ in it
for the driving shaft y which is cranked at g¹ between the bearings.
On the crank g¹ is fitted one end of the connecting rod h, the other end of which
is fitted on a stud i secured near the far end of the saw carriage j, this carriage
works to and fro in slideways d² on the cross rail d and carries a saw k which is
mounted and operated.in the usual way.
When a baulk of timber l, from which boards are to be cut, has been clamped
upon the travelling carriage b, motion is communicated to one of the driving
pulleys m on the driving shaft y whereby the saw carriage j and saw k are set in
motion and the timber carriage b is caused to travel in any convenient manner by a
train of gearing as shown or equivalent means.
The dotted lines X X and Y Y denote respectively the highest and lowest positions
ever taken by the crank and connecting rod h, and from this it will be readily
seen that by adapting the cross rail d to carry both the saw carriage ; and the
driving shaft g considerable space is economised.
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 I am aware
it has been previously proposed in a horizontal saw frame to mount the saw
carriage and driving shaft upon one and the same cross rail which is capable of
being raised and lowered upon its supports and I make no general claim to such
construction but what I claim is :-
The combination and general arrangement of parts embodying my improve-
ments in horizontal saw frames substantially as herein shown and described for the
purpose specified.
Dated this 14th day of November 1892.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.