Improvements in Wood Planing and Moulding Machines.
Year: 1890

page_text: Date of Application, 18th Apr., 1890
Complete Specification Left, 30th Dec., 1890-Accepted, 31st Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Wood Planing and Moulding Machines.
I, THOMAS NIELD ROBINSON, of the firm of Thomas Robinson and Son Limited,
of Railway Works, Rochdale, in the County of Lancaster, Machine Maker, do
hereby declare the nature of this invention to be as follows:-
My invention relates to those wood planing and moulding machines in which
stationary knives or cutters are employed either with or without revolving cutters
which act upon the board or timber in the machine before it reaches the stationary
knives, and the object of my invention is to construct a suitable apparatus for
applying pressure to the board or boards above the stationary knives.
My improved apparatus is formed of a fixed vertical frame or bracket secured
to the machine bed, preferably behind the knives; in slideways on this bracket is
mounted an adjustable carriage for carrying the pressure rollers, this carriage is
arranged so that it can be raised and lowered by a screw in the fixed frame, and it
is further capable of a short transverse movement for adjusting its position.
The adjustable carriage consists of an open framework with suitable recesses or
spaces to receive and carry a number of open bridles or brackets, in each of which
are mounted a pair of pressure rollers when two knives are used, the recesses
in the adjustable carriage allow the pressure rollers to be placed at suitable
distances apart for holding down varying widths of boards, and when necessary
one, two, or more of the bridles and rollers can be removed from the carriage.
A. convenient means of giving the pressure to the rollers is to fulcrum weight
bars to a transverse stud fitted in the adjustable carriage, the bars are connected
by a link or links to the bridles by which means the full pressure is given direct to
the pressure rollers.
In order to raise the weights slightly, say for the purpose of removing the ordinary
box with the stationary knives, I mount in the adjustable carriage an eccentric
shaft or bar just below the weight bars, this shaft or bar is provided with a handle
by moving which the bar can be turned so as to raise the weight bars slightly and
allow the knife box to be removed.
Doted this 17th day of suil 1800
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Wood Planing and Moulding Machines.
I, THOMAS NIELD ROBINSON, of the firm of Thomas Robinson and Son Limited,
of Railway Works, Rochdale, in the County of Lancaster, Machine Maker, 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 those wood planing and moulding machines in which
stationary knives or cutters are employed either with or without revolving cutters
which act upon the board or timber in the machine before it reaches the stationary
knives, and the object of my invention is to construct a suitable apparatus for applying
pressure to the board or boards above the stationary knives.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.

page_text: Fig. 1 is a side elevation of part of a wood planing and moulding machine to
which my improvements are applied and
Fig. 2 is a plan of the same.
My improved apparatus is formed of a fixed vertical frame or bracket a secured
to the machine bed, preferably behind the knives c; in slideways on this bracket a
is mounted an adjustable carriage d for carrying the pressure rollers. The carriage d
is arranged so that it can be raised and lowered by turning a handwheel ¹ and
actuating a screw in the fixed frame a, and it is further capable of a short trans-
verse movement for adjusting its position laterally this being effected by two
adjusting screws g working in Ings on the bracket a.
The adjustable carriage d consists of an open framework with suitable recesses
or spaces to receive and carry a number of open bridles or brackets i, in each of
which are mounted a pair of pressure rollers when two knives are used. The
recesses in the adjustable carriage d allow the pressure rollers j to be placed at
suitable distances apart for holding down varying widths of boards and when
necessary one, two or more of the bridles i and rollers can be removed from the
carriage d.
A. convenient means of giving the pressure to the rollers is to fulcrum weight
bars to a transverse stud fitted in the adjustable carriage d, and to connect the
bars by a link or links m to the bridles i by which means the full pressure is given
direct to the pressure rollers j.
In order to raise the weights m slightly, say for the purpose of removing the
ordinary box c with the stationary knives I mount in the adjustable carriage d an
eccentric shaft or bar o just below the weight bars ; this eccentric shaft or bar o
is provided with a handle o' by moving which the bar o can be turned so as to raise
the weight bars slightly and allow the knife box e to be removed without
necessitating the removal of the carriage d.
Instead of the arrangement of weight bars k other suitable means might be
employed to give the requisite pressure to the rollers j.
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. The combination with a wood planing and moulding machine, of the improved
pressure apparatus consisting essentially of an adjustable carriage or open frame-
work in which are mounted any suitable number of pressure rollers weighted by
fulcrumed weight bars or equivalent means substantially as herein set forth.
2. The combination of the bracket a, the adjustable carriage d, bridles i, pressure
rollers, fulcrumed weight bars k and eccentric shaft o, all substantially as and for
the purposes herein set forth.
Dated this 29th day of December 1890.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.