IMPROVEMENTS IN MACHINERY FOR SLOTTING AND PLANING METALS
Year: 1873

page_text: LETTERS PATENT to Joseph Barrow, of the City of Manchester, in the
County of Lancaster, Engineer, for the Invention of "IMPROVEMENTS
Sealed the 16th December 1873, and dated the 19th June 1873.
PROVISIONAL SPECIFICATION left by the said Joseph Barrow at the
Office of the Commissioners of Patents, with his Petition, on the
19th June 1873.
I, JOSEPH BARROW, of the City of Manchester, in the County of
Lancaster, Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MACHINERY FOR SLOTTING AND PLANING METALS," to be as
follows:-
-
This Invention has reference to the class of slotting and planing
machines for heavy work in which the cutting tool is made to travel
both vertically and horizontally, the tool slotting vertically with a
horizontal feed, and planing horizontally with a vertical feed, and my

page_text: Invention consists in so constructing the machine that the vertical slide
bed upon which the tool slide or box moves up and down shall be
adjustable, thereby enabling the said vertical slide bed to be set at
varying heights relatively to the level of the top or face of the base
plate, so that the vertical bed may be brought down close to the said
level, or may be raised considerably above it when necessary to clear the
work, such adjustment not interfering with the planing and slotting
motion of the machine.
My Invention will enable work to be passed below the vertical slide
and between the uprights which support the horizontal slide bed or beds
of the machine, and the whole of the surface of such work to be slotted
or planed within the limits of the machine. Moreover, the vertical
slide being set just to clear the work the cutting tool will receive an
uniform support from the said slide through the whole of its stroke, and
the horizontal bed or beds being fixed rigidly to the uprights steadiness
of the machine and accuracy of the work-it performs will be ensured.
The base plate of the machine may be made with a recess along its
whole length to receive a long sliding table having its upper surface
flush or 'even with the upper surface of the base plate on either sido
of it.
The sliding table carries at one end of its upper surface a circular
table, any overhanging work upon which may be supported during its
rotation on the common flush surfaces of the sliding table and base
plate.
Both tables may be made self-acting by any suitable means, and work
which now requires a circular table of large diameter for the efficient
support of its overhanging part may be rotated on a table of small
diameter, leaving the flush surfaces of the base plate and sliding table
clear either for fastening work which has 'to be slotted or planed in a
state of rest or which requires to be moved in a straight direction under
the machine.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Joseph Barrow in the Great Seal Patent Office on
the 16th December 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
BARROW, of the City of Manchester, in the County of Lancaster,
Engineer, send greeting.
"
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of June, in the year
of our Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Joseph Barrow, Her special license that
I, the said Joseph Barrow, my executors, administrators, and assigns, or
such others as I, the said Joseph Barrow, my executors, administrators,
and assigns, should at any time agree with, and no.others, from time to
time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY FOR SLOTTING
AND PLANING METALS," upon the condition (amongst others) that I, the
said Joseph Barrow, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the
same to be filed in the Great Scal. Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Joseph Barrow, do hereby declare
the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement thercof, and the Drawings therein referred to (that
is to say):
This Invention has reference to the class of slotting and planing
machines for heavy work, in which the cutting tool is made to travel
both vertically and horizontally, the tool slotting vertically with a
horizontal feed, and planing horizontally with a vertical feed, and my
Invention consists in so constructing the machine that the vertical slide
bed upon which the tool slide or box moves up and down shall be

page_text: adjustable, thereby enabling the said vertical slide bed to be set at
varying heights relatively to the level of the top or face of the base
plate, so that the vertical bed may be brought down close to the said
level, or may be raised considerably above it when necessary to clear the
work, such adjustment not interfering with the planing and slotting
motion of the machine.
►
My Invention will enable work to be passed below the vertical slide
and between the uprights which support the horizontal slide bed or beds
of the machine, and the whole of the surface of such work to be slotted
or planed within the limits of the machine. Moreover, the vertical 1
slide being set just to clear the work the cutting tool will receive an
uniform support from the said slide through the whole of its stroke, and
the horizontal bed or beds being fixed rigidly to the uprights, steadiness
of the machine and accuracy of the work it performs will be ensured.
The base plate of the machine may be made with a recess along its 1
whole length to receive a long sliding table having its upper surface
flush or even with the upper surfaces of the base plate on either side
of it.
The sliding table carries at one end of its upper surface a circular
table, any overhanging work upon which may be supported during its a
rotation on the common flush surfaces of the sliding table and base
plate.
Both tables may be made self-acting by any suitable means, and work
which now requires a circular table of large diameter for the efficient
support of its overhanging part may be rotated on a table of small 2
diameter, leaving the flush surfaces of the base plate and sliding table
clear either for fastening work which has to be slotted or planed in a
state of rest, or which requires to be moved in a straight direction under
the machine.
And in order that my Invention may be clearly understood I have a
hereunto annexed a Sheet of Drawings showing a slotting and planing
machine embodying my Invention. The same letters of reference are
use to denote like parts in all the Figures.
Fig. 1 is a sectional plan of the machine taken in the line A, B, of
Fig. 3; Fig. 2 is a front elevation of the machine; and Fig. 3 is a side a
elevation thereof.

page_text: The machine is constructed with a base plate composed of two beds a
joined together by cross bars a¹, and forming between the beds a recess
or space into which is fitted a slide table b, the surface of which is flush
with those of the two beds. The surfaces of the beds and slide table are
planed with T grooves. At one end the slide table carries a circular
table c made to rotate by a worm wheel d and worm e (Fig. 2) sliding
on a grooved shaft, and actuated through bevil wheels and a cross
shaft f from the rachet wheel f¹, as in ordinary machines. The slide
table has a self-acting straight movement given to it by a screw g,
bevil wheels g', a cross shaft, and the ratchet wheel 92, and is provided
through pulleys g³ and a drum g' with a quick traverse motion in either
direction. The uprights are bolted to the sides of the beds a, and have
firmly fastened to them a cross or horizontal slide bed k, upon which is
fitted a saddle, which saddle has a horizontal movement given to it by
two screws l¹, a vertical shaft 72, and bevil wheels ³, provided with two
sets of fast and loose pulleys ', the fast pulleys of which are driven
alternately each way by cross and open belts. Into the saddle is fitted
a vertical slide bed m, upon which is made to move up and down a tool
saddle n, balanced as shewn by a weight n¹, which tool saddle is
furnished with a transverse slide n³, upon which can be bolted a slotting
tool or a planing tool in the ordinary manner. A circular tool holder o
rotated by a worm o' and worm wheel o² is also provided. The up-and-
down motion of the saddle is imparted to it by a vertical screw p, spur
wheels 9, bevil wheels q', horizontal and vertical shafts q², and the fast
and loose pulleys 1. The vertical slide bed is furnished with a V (shewn
at r, Fig. 1), the whole length of which fits into a corresponding V in
the saddle, and is capable of adjustment to varying distances from the
base plate a by means of a screw s, nut s¹ fastened to the saddle l, and
spur wheels p¹, p², p³, one spur wheel being keyed to the driving screw p,
another to the lifting screw s, whilst the third or intermediate wheel p²
is made to engage and disengage by lowering it into gear or lifting it
out of gear by a clutch lever, or other well-known means used for this
purpose.
When the vertical slide bed m is required to be lifted or lowered the
driving screw imparts motion in either direction.
od mor bo

page_text: firmly fastened to the saddle by means of set screws t, which wedge
their respective V's together. Hence it will be seen that the vertical
slide bed can be quickly lifted just to clear the work when required, or
brought down to act as a support to the tool slide n, for operating on
work placed in front of the machine.
The self-acting motions are imparted to the various slides by a rocking
shaft u in the ordinary manner, and one rachet wheel u¹ is made to
serve for both the horizontal and vertical motions of the tool by turning
it round on the eccentric bush u², causing it to gear through the bevil
wheels u³, either with the vertical shaft for the planing motion, or with
the vertical shaft q² for the slotting motion.
In the machine shown in the Drawings and above described tables for
moving the work in straight and circular directions are provided in
addition to the vertical and horizontal movements of the tool, and such
straight and circular movements are useful for bringing various portious
of forged and other work successively under the action of the machine,
but my Invention is equally applicable to the same class of machine
where a fixed base plate only is used, the tool working vertically and
horizontally, as by being enabled to lift the vertical slide bed m work
can be passed underneath, which as these machines are at present con-
structed must remain in front of the machine. .
I have at Figures 4, 5, and 6 shown in outline various kinds of work
which may be done in a machine constructed according to my Invention
in a better and more expeditious manner than can be done in ordinary
machines.
To operate upon a connecting rod for a marine engine (Fig. 4), I bolt
the circular end in position upon the circular table c, as in an ordinary
slotting machine, supporting the overhanging part by a V block resting
on the flush surfaces of the table and base plate. The work is rotated
in the ordinary manner, the V block supporting the overhanging part
and moving with it on the flush surface of the base plate. The vertical
slide may be then brought down close to the table, so as to afford a
uniform resistance to the action of the cut. The small circles are then
cut by the rotating tool o on the saddle n, and the end at v¹ is quickly
brought to position by the drum g* and pulleys g³. The straight part v¹
can then be slotted all round, the tool moving and the work being fixed.
The vertical slide m is then lifted, and the faces at each end are planed

page_text: so that the work so far has not required resetting, and is a copy of the
accuracy of the machine. To cut out the joint the work will be turned
and fastened on edge, the joint or fork slotted, and at the same setting
the face at each end can be finished without farther resetting. In an
ordinary slotting machine this connecting rod would require to be
changed and reset about six times.
To operate upon the crank shaft of a marine engine (Fig. 5), the end
bearings w may be laid in V blocks resting on the slide table b, and cach
crank brought under the action of the machine, the inside w¹ and
outside w² of the crank and the flat faces w³ being brought into position
by rotating the crank in the V blocks, the vertical slide bed being lifted
to clear the work and to give an uniform resistance to the action of the
cut. This class of crank work could by the use of my Invention be
done with facility in a machine where the tool moves horizontally and
vertically, and the base plate is not provided with slide tables, as the
vertical slide bed when lifted would then allow the work to be brought
under the action of the tool.
It will be evident also that in large geared and fly wheels the
keyways may by the use of my Invention be readily slotted, as the work
will not require setting on any exact part of the base plate, the vertical
slide bed by being raised just to clear the boss of the wheel giving the
best resistance possible to the action of the cut.
In cutting the keyways in the bosses of screws or propellers for ships,
the same advantages are afforded by a machine constructed according to
my Invention.
In operating upon the standard or check for a sugar mill (Fig. 6),
the work may be fastened on to the slide table b, and the parts
marked x, x, x³, x³, x, x³, brought successively under the action of the
machine, the circular part a being slotted by the tool of the rotating
tool holder o, the vertical slide bed m being lifted just to clear the
wort gives the best possible resistance to the action of the cut. The
caps x, x, x, which are shown in the Drawing in the positions which
obtain in the completed sugar mill can be slotted or planed in the same
machinc.
Having described my said Invention of "Improvements in Machinery
for Slotting and Planing Metals," and having explained the manner of
carrying the same into practical effect, I hereby declare that I do not

page_text: claim as of my Invention or the exclusive use of the several mechanical
parts herein-before described or referred to, except when the same are
used in and for the purposes of my said Invention; but what I consider
to be novel and original, and therefore claim as the Invention secured
to me by the herein-before in part recited Letters Patent is, in slotting
and planing machines of the class wherein the tool is made to slot
vertically with a horizontal feed, and to plane horizontally with a vertical
feed, the constructing and arranging the machine with an adjustable
vertical slide bed for carrying the tool slide or box, substantially as above
JOSEPH BARROW. (L.S.)