Improvements in Horizontal Sawing Machinery.
Year: 1889

page_text: Date of Application, 31st Aug., 1889
Complete Specification Left, 31st May, 1890-Accepted, 5th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Horizontal 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:-
:-
The present Invention relates to the apparatus employed in horizontal sawing
machinery for feeding the log of wood to the saw.
Hitherto it has been customary to provide a feeding table approximating in length
to the length of the log which it is desired to saw up, and driven with a rack and
pinion wheel fixed on the under surface of table, but it is found inconvenient to
transport a table of such size in conjunction with the ordinary parts of a portable
sawing frame.
I therefore propose to employ a table formed of two or more sections,
one section supporting each end of the timber. These sections are provided with
wheels or runners which run on guide rails in the usual manner, being worked by
means of a winch and chain gearing. The distance apart of two or more sections
of the table can be readily adjusted to the size of the log, and in the case of a
log of unusual length an intermediate table may be employed to prevent the same
from bending. The log is maintained in its proper lateral position by means of
dogs or clamps which are mounted in grooves formed in the body of the table and
caused to approach or recede from each other by means of a spindle on which are
formed right and left handed screw threads. By this means the dogs are rendered
self centering and can be actuated from one side of the table; this method of working
presenting a considerable advantage over the present system according to which the
dogs are actuated separately and the centering of the log is rendered dependent on
the judgment of the workman.
Dated this 31st day of August 1980
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Horizontal 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 thereof, that is to say :-
The present invention relates to the apparatus employed in horizontal sawing
machinery for feeding the log of wood to the saw.
Hitherto it has been customary to provide a feeding table approximating in length
to the size of the log which it is desired to cut up, but it is found inconvenient
to transport a table of such size in conjunction with the ordinary parts of a portable
sawing frame besides being more costly. I therefore propose to employ a table
formed in two or more sections, one section supporting each end of the timber. These
sections are provided with wheels or runners which run on guide rails in the usual
manner, being worked by means of a winch and chain wire or rope gearing.
The distance apart of the two or more sections of the table can be readily adjusted
to the size of the log and in the case of a log of unusual length an intermediate
table may be employed to prevent the same from bending. The log is maintained in
its proper lateral position by means of dogs or clamps which are mounted in
formed in the body of the table and caused to approach or recede from each other
Price 6d1
grooves

page_text: by means of a spindle on which are formed right and left banded screw threads
actuated by a hand wheel.
In the accompanying drawings, Fig. 1 represents a plan view of my improved
feeding apparatus and Fig. 2 a section of the same in elevation taken through the
line x. x. of Fig. 1.
A are the sleepers constituting the bed of the frame and the B uprights upon which
the saw carriage is mounted. Cand C' are the tables for feeding the log to the saw,
these tables being provided with grooved wheels c which run upon rails D in the
usual manner. The log is fixed to the tables by means of "dogs" E which are
mounted upon the right and left handed screwed spindles F and to the table C is
attached a chain or wire rope G which passes round a pulley 9 and thence to a
roller H. Another rope or chain G¹ is fastened at a at one end of the railway to
the timbers A and after passing around a pulley g¹ which is mounted on a stud fixed
to the back of the tablo C the rope passes to a roller H'. The rollers H and H
are mounted in bearings, formed in or attached to the foundation and the axes of
these rollers are prolonged at one end and carry bevil wheels J. J gearing respectively
with other bevil wheels K, K₁, mounted on a shaft L on which is also mounted a
toothed wheel M. The wheel M gears with another toothed wheel N mounted on a
shaft N' on which shaft are also mounted the fast and loose pullies N' N³. By means
of suitable gearing, motion can be imparted to the driving pulley N from the first
motion shaft and the motion will be imparted to the shaft L and by it through
the bevil gearing to either of the rollers H, H' the other roller being disengaged
by means of ordinary clutch gear with which each pair of bevil wheels is provided.
The action of the apparatus is as follows-
When the wheels driving the roller H are in the
gear rope G₁ passing round
the grooved pulley S¹ will be wound upon the said roller and the tables and log
will be drawn towards the saw at half the speed of the chain and thus minimises
vibration and jerks to the table by one half, and the roller H being free will pay out
the rope Gas the tables advance. On the arrangement being reversed the roller H
will take up the rope G and draw the tables away from the saw the roller H¹ paying
out the rope G at the same rate. In both motions, that is in advancing and receding,
the log acts as a connecting rod between the two tables which are thus compelled to
move at the same rate of speed.
When a slow feed is desired both pairs of bevil wheels are thrown out of gear and
the roller H¹ is driven by means of worm and worm wheel P. P' the worm being
mounted on an upright shaft P' which may either be turned by a hand winch or by
other suitable means.
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 a horizontal saw frame or machine the herein described combination of apparatus
for effecting the necessary steady movements of the log and consisting essentially of
two or more tables such as CC ropes wires or chains G G₁ grooved wheels S. S¹ and
rollers H. H the whole operating in manner and for the purpose substantially as
herein described and illustrated in the accompanying sheet of drawings.
Dated this 21st day of May 1990
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for the Applicant.