CERTAIN IMPROVEMENTS IN MACHINERY FOR DRILLING, GROOVING, AND SLOTTING
Year: 1855

page_text: LETTERS PATENT to Thomas Beatt Sharp, of the City of Manchester,
Engineer, and Richard Furnival, of the same Place, Foreman, for the
Invention of "CERTAIN IMPROVEMENTS IN MACHINERY FOR DRILLING,
GROOVING, AND SLOTTING."
Sealed the 1st April 1856, and dated the 26th October 1855.
PROVISIONAL SPECIFICATION left by the said Thomas Beatt Sharp and
Richard Furnival at the Office of the Commissioners of Patents, with
their Petition, on the 26th October 1855.
We, THOMAS BEATT SHARP, of the City of Manchester, Engineer, and
RICHARD FURNIVAL, of the same Place, Foreman, do hereby declare the nature
of the said Invention for "CERTAIN IMPROVEMENTS IN MACHINERY FOR DRILLING,
GROOVING, AND SLOTTING," to be as follows:-
Our Invention consists in a compound drilling, grooving, and slotting
machine, the principal object of which is to make grooves by the combined
action of a rotating drill, to which lateral motion is imparted. This machine
is composed of a bed plate, near each end of which is fixed an adjustable table
for supporting the articles to be operated upon. Near each end of the bed is
a moveable headstock for the drilling spindles, to each of which suitable rotary
and descending motion is given by a separate driving shaft. The lateral
motion is given to each headstock by face plates and crank pins, or other
suitable mechanism, which are driven independently of each other. By this
improved machine two articles may be operated upon at the same time; or, in

page_text: operating upon locomotive connecting rods or other large articles, two holes,
grooves, or slots of unequal" dimensions may be made at the same time in the
same article. f ...
Our Invention of giving lateral motion to the drilling headstock, and
allowing the article under operation to remain stationary, is also applicable
to single-acting machines....
By supporting the article to be operated upon in a chuck, and imparting
thereto a rotary or partial rotary motion, a spiral or other shaped groove may
be cut.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Beatt Sharp and Richard Furnival in the Great Seal
Patent Office on the 23rd April 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, THOMAS-
BEATT SHARP, of the City of Manchester, Engineer, and RICHARD FURNIVAL, Of
the same Place, Foreman, send greeting..
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of October, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her reign,
did, for Herself, Her heirs and successors, give 'and grant unto us, the said
Thomas Beatt Sharp and Richard Furnival, Her special license that we, the
said Thomas Beatt Sharp and Richard Furnival, our executors, administrators,
and assigns, or such others as we, the said Thomas Beatt Sharp and Richard
Furnival, our 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 "CERTAIN IMPROVEMENTS IN
MACHINERY FOR DRILLING, GROOVING, AND SLOTTING," upon the condition (amongst
others) that we, the said Thomas Beatt Sharp and Richard Furnival, our
executors or administrators, by an instrument in writing under our, or their,
or one of our or 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 Seal Patent Office
within six calendar months next and immediately after the date of the said
Letters Patent.

page_text: NOW KNOW YE,, that we, the. said Thomas Beatt. Sharp and Richard,
Furnival; do hereby declare the nature of our said Invention, and in. what
manner the same is to be performed, to be particularly described and, ascer
tained, in and. by the following Specification thereof, reference. being; had to
the accompanying Drawings (that is to say).:.
11.
The nature of our Invention consists, first, in a compound drilling, grooving,,
and slotting machine, for making two slots or grooves in the same piece, or
in two separate pieces, by the combined action of rotary drills and lateral,
motion.
Secondly, in giving lateral motion to the drilling headstock of drilling,
grooving, and slotting machines, and in allowing the article under operation to
remain stationary.
And, lastly, in applying to drilling, grooving, and slotting machines a chuck,
for giving a partial rotary motion to the article under operation, whereby spiral
or other shaped grooves may be cut.
And in order that our Invention may be fully understood and readily carried
into effect, we will proceed to describe the annexed Drawing, in the several
views of which similar letters of reference are put upon corresponding parts.
Figure 1 is an end elevation, in section, of our compound drilling, grooving,
and slotting machine; Figure 2 is a front elevation, partly in section; and
Figure 8, a plan view, also partly in section, of the same.
In these views, some of the pieces are omitted, and others broken off, in
order that the mode of construction may be better understood.
a, a, are the
standards, supporting. the bed plate b, near each end of which is bolted a plate c,
5. for the adjustable angle bracket d and table e, by which the articles to be
operated upon are supported. The level of these tables may be raised or
lowered by the screws e¹, see Figures 1 and 2, bevel pinions e², and handle, and
the table may be moved horizontally by the screw e. Near each end of the
bed plate 6 is a moveable headstock f, for the drilling spindles 9,9, each of
which is turned round by one of the shafts h, h; each of these shafts is sup-
ported by the centre bearing h¹ and outer bearing h; the speed pulleys h³, fixed
on the shafts h, are driven by straps from the counter shaft, and the rotary
motion of the shafts h is transmitted to each of the drilling spindles 9 by the
bevel pinion h, loose on the shaft, but connected to it by a key; each of these
pinions gears into a pinion g¹, which is fixed on the shaft g², revolving in a
bush cast. on the moveable headstock f; to the shaft g is also fixed the
pinion g³, gearing into the pinion g', through which the spindle g is at liberty
to move vertically.. The spindles are brought down to increase the depth of
the cut by means of the, rack i, pinion, worm wheel, worm, diagonal

page_text: shaft bevel pinions and the latter of which is loose, on the shaft in;
to which the ratchet wheeluzis keyedr; this ratchet wheel is worked by the
click and lever 2, loose on the shaft n, to which the pinion is:connected
by a key taking into a groove; by this arrangement, when the headstock f
moves to and fro, the pinion is moved with it. Thererequisite up and
down motion is given to the end of the lever by the link o, the lower end. of
which is connected to the double lever o³, which is acted upon by a projection
on the wheel k³..
The headstocks f. f, are moved to and fro lengthwise of the bed plate b in
the following manner: Each headstock is connected to one of the slide rods j
by a bridle j¹; these rods slide in projections. from the bearings h¹ and h², the
centre bearing having two holes a little distance apart to allow the slide rods.
to pass each other: The slide rods j are screwed, and are each connected to
one of the moveable headstocks f by a nut j?, see Figure 1, for the purpose of
being able to vary the position of the headstock on the bed. The connecting
rods k, k, áre each jointed at one end to one of the bridles on the slide
rods j, and at the other end to a crank pin 'k', projecting from the face plate k³,
to which a slow rotary motion is given by the conical groove pulleys hⓇ and 1,
shaft l', worm P, worm wheel 13, shaft l', excentric pinion 1, gearing into the
elliptical wheel ³, cast with the face plate ; by means of the excentric
pinion and elliptical wheel ³, the unequal motion imparted by the crank
pin k in the face plate ³, is to a great extent obviated.
By the compound machine above described, two articles may be operated
upon at the same time, and a slot or groove of different dimensions produced
in each, the size of the cutting tool, the velocity of the drilling spindles, the
length of traverse, and the velocity of the drilling headstocks being in each
case independent of the other; and also in operating upon locomotive con-
necting rods or other large articles, two grooves or slots of equal or unequal
dimensions may be made at the same time in the same article.
Our Invention of giving lateral motion to the drilling headstock, and allowing
the article under operation to remain stationary, is also applicable to machines
with only one drilling headstock.
When spiral or other shaped slots or grooves are required, the article in
which such slots or grooves are to be cut is supported on a chuck fixed to
the table e; a slow rotary motion is then imparted to the chuck from any
convenient part of the machine, which rotary motion (imparted to the article
under operation), in combination with the lateral motion of the cutting tool,
produces the spiral or other shaped slot or groove required. When this part
of our Invention is applied to drilling, grooving, and slotting machines of

page_text: the usual construction in which the drilling headstock is stationary, the same
result is obtained by the lateral motion of the table and the rotary motion of
the chuck."
Having thus described the nature of our Invention, and the manner of
performing the same, we wish to observe that we do not limit ourselves to the
details herein set forth, as the same may be considerably varied; but what we
do claim is,
First, the compound drilling, grooving, and slotting machine for making two
slots or grooves at the same time, as described.
Secondly, giving lateral motion to the drilling headstocks of drilling,
grooving, and slotting machines, and allowing the article under operation to
remain stationary.
And, lastly, the application of a revolving chuck to drilling, grooving, and
slotting machines, by means whereof spiral or other shaped slots or grooves
may be made.
In witness whereof, we, the said Thomas Beatt Sharp and Richard
Furnival, have hereunto set our hands and seals, this Nineteenth
day of April, One thousand eight hundred and fifty-six.
0
Witness,
H. B. BARLOW,
Manchester.
THO. B. SHARP.
RICHP FURNIVAL.
(L.B.)
(L.S.)