IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRILLING AND TURNING THE PARTS OF BOILERS, AND FOR OTHER LIKE PURPOSES
Year: 1879

page_text: LETTERS PATENT to James Garvie, of Garvie and Company, 5, New Street,
Bishopsgate Without, in the County of Middlesex, Engineer, for the Invention
of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DRILLING AND
TURNING THE PARTS OF BOILERS, AND FOR OTHER LIKE PURPOSES."
Sealed the 25th June 1880, and dated the 27th December 1879.
PROVISIONAL SPECIFICATION left by the said James Garvie at the Office
of the Commissioners of Patents on the 27th December 1879.
JAMES GARVIE, of Garvie and Company, 5, New Street, Bishopsgate Without,
in the County of Middlesex, Engineer. "IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR DRILLING AND TURNING THE PARTS OF BOILERS, AND FOR
OTHER LIKE PURPOSES."
This Invention relates to a peculiar combination and arrangement of machinery
or apparatus for drilling and turning the parts of boilers, and for other like purposes,
whereby I economise space by obtaining greater compactness in the general arrange-
ment, whilst the whole of the drills and other tools are under the supervision and
control of one attendant in lieu of requiring two or more attendants, as in the
arrangements of this class of machinery hitherto proposed.
According to my Invention I employ a bed plate carrying a turntable sliding
thereon for receiving the work to be operated upon, such bed plate being bolted at
one end to a second bed plate at right angles thereto in the form of a T. The first
bed plate also carries an upright drilling standard capable of sliding thereon
towards or from the work. The second bed plate, which is attached at or near its
longitudinal centre to the first bed plate, carries a second upright drilling standard
capable of sliding thercon in a direction transversely to the first bed plate. Upon
this second bed plate there is also mounted to slide thereon a third standard
carrying a radial arm for use in vertical drilling. The first and second standards
each carry a vertical second motion shaft driven from one common main shaft below
in any well known manner. One or more drills are mounted horizontally in the
said standards, first and second standards, and driven by bevel gearing from the
vertical shafts, they being fed forward as required by any well known feed motion.
The third standard carrying the radial arm and vertical drill can be brought along
with its arm into any desired position as regards the work when vertical drilling
is required, the drill being driven from the main shaft in the usual manner.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Garvie in the Great Seal Patent Office on the 26th June
1880.
JAMES GARVIE, of Garvie and Company, 5, New Street, Bishopsgate Without,
in the County of Middlesex, Engineer. "IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR DRILLING AND TURNING THE PARTS OF BOILERS, AND FOR
OTHER LIKE PURPOSES."
My said Invention relates to a peculiar combination and arrangement of
machinery or apparatus for drilling and turning the parts of boilers, and for other
like purposes, whereby I economize space by obtaining greater compactness in the
general arrangement, whilst the whole of the drills and other tools are under the
supervision and control of one attendant in lieu of requiring two or more attendants,
as in the arrangements of this class of machinery hitherto proposed.
According to my Invention I employ a bed plate carrying a turntable sliding
thereon for receiving the work to be operated upon, such bed plate being bolted at
one end to a second bed plate, at right angles thereto, in the form of a T. The
first bed plate also carries an upright drilling standard capable of sliding thereon
towards or from the work. The second bed plate, which is attached at or near
its longitudinal centre to the first bed plate, carries a second upright drilling
standard capable of sliding thereon in a direction transversely to the first bed
plate. Upon this second bed plate there is also mounted whon required, so as to
slide thereon, a third standard carrying a radial arm for use in vertical drilling.
The first and second standards each carry a vertical second motion shaft driven
from a main shaft below in any well known manner. Any desired number of
drills or other tools are mounted horizontally in the said first and second standards,
and driven, when drills are employed, by bevel or other gearing from the vertical
shafts, they being fed forward as required by any well known feed motion. The
third standard carrying the radial arm and vertical drill can be brought with its
arm along the second bed plate into any desired position as regards the work
when vertical drilling is required, the drill being driven from the main shaft below
in any well known manner.
And in order that my said Invention may be fully understood I shall now proceed
more particularly to describe the same, and for that purpose shall refer to the several
Figures on the explanatory Sheets of Drawings hereunto annexed, the saine letters
of reference indicating corresponding parts in all the Figures.
Figs 1 and 2 (Sheet 1) of my Diawings represent respectively in side elevation
and plan the peculiar combination or arrangement of bed plates, turntable, and
upright adjustable tool carrying standards which constitutes my improved arrange-
ment of machinery or apparatus for drilling and turning the parts of boilers, and
for other like purposes, these Figures illustrating the said machinery as adapted,
for example, to the horizontal drilling of the rivet holes in the side plates of a
boiler; Fig. 3 (Sheet 2) is a plan of a portion of the same machinery as adjusted
for vertical drilling for any purpose, as, for example, the drilling or cutting of the
holes for the tubes in the tube plate of a boiler. I may here observe that in my
Drawings I have omitted the details of the driving gear and feed motions for the
drills, also of the adjustment of the heights of the several drills or other tools on
the sliding standards, as these details are well understood and constitute separately
no part of my present Invention.
A is the main horizontal bed plate, which is firmly bolted at one end to the
middle or thereabouts of the second horizontal bed plate B placed at right angles to
the first. On the bed plate A there is mounted so as to slide longitudinally thereon
the turntable C, upon which is mounted the boiler or other work to be operated

page_text: upon. In Fig. 1 I have shown as an example a portion of a boiler D having the
rivet holes drilled therein. E is an upright standard carrying one or more hori-
zontal drills, cutters, or turning tools, according to the operation to be performed.
This standard E is also mounted upon the bedplate A, and is free to slide thereon
towards or from the work. A corresponding upright standard E¹, also carrying
one or more drills, cutters, or turning tools, is mounted upon the second bedplate B,
and is capable of sliding longitudinally in either direction thereon, that is to say,
transversely to the bed plate A. Either or both the standards E, E¹, may, if
desired, be made to turn or pivot on a centre of its own, and the saddles P may be
also made to turn or pivot on centres, and may have a horizontal sliding adjust-
ment. The second bedplate B also carries, when required, another standard F
provided with a radial arm G for use in vertical drilling, this standard F being also
capable of sliding longitudinally in either direction along the bedplate B; H is the
first motion shaft contained under or within the bedplate A, and driving by means
of suitable gearing and the intermediate shaft I the driving shaft K connected
with the second bed plate B. These two driving shafts H and K impart motion by
bevel gearing to the vertical driving shafts Land L' respectively in the upright
sliding standards E and E¹, and these latter in turn transmit motion by bevel
gearing to the several horizontal drills, the positions of which I have indicated by
horizontal dotted lines at a, in Fig. 1. The vertical drill in the sliding standard F
is also driven, as will be readily understood, by bevel gearing from the driving
shaft K in the bedplate B. The traversing or sliding motions of the turntable C
and the three standards E, E¹, and F are all derived, as will be readily understood,
from the two screw spindles M., M², whilst the rotary motion of the turntable is
imparted thereto by the screw N and worm wheel Ŏ. This rotary motion, which
serves to bring the boiler round to the proper positions for the rivet holes, may
obviously be also used for putting a plate in motion for cutting or turning if preferred.
All the motions for traversing the standards E, E¹, and F, and for traversing and
rotating the turntable C, are by power with the usual reversing gear, so as to
work in either direction, a hand adjustment being also provided. The turntable is
capable of sufficient adjustment along the bedplate A to admit boilers of a diameter
up to sixteen feet, and the standard E is made to slide along the bed-plate A in
order to suit the different sizes of boilers. The second drilling standard E¹ is caused
to slide along its bed-plate B at right angles to A for the purpose of adjustment,
and to enable it to be moved out of the way when the radial arm G is required to
be put to work for vertical dilling and cutting out, as shown in the plan view,
Fig. 3 (Sheet 2). My Drawings illustrate each of the two drilling standards E, E¹,
as provided with two drills, though any other number may obviously be employed,
each drill having any well known arrangement of self acting feed of any required
extent applied thereto, as is well understood. The whole of the drills can be driven
at the same time, or one or some of them only may be driven, as required, each
drill spindle being fitted with a disengaging arrangement. The drills & are severally
mounted, along with their respective driving and feed gear, on saddles P capable
of sliding up and down the upright standards E, E¹, each saddle having a back
balance weight connected thereto by a chain passing over guide pullies Q, the
weight sliding inside the hollow standard. As all these saddles and gearing are
precisely alike I have only shown one of the series in Fig. 1. The radial drilling
arm G is by preference double geared, and when at work is brought into a line
with the centre of the main bed-plate A, as shown in the plan, Fig. 3, the rotary
motion of the turntable enabling any part of the work to be brought under the
drill.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried into
effect, I would observe in conclusion that I do not claim separately, neither do I
confine or restrict myself to any particular arrangement for imparting the rotary &
feed motions to the dills, or for adjusting the heights of the saddles on the upright
standards which carry the diills or other tools, or for imparting the traverse

page_text: motions to the standards and turntable along their respective bed plates, as all
these motions may obviously be carried out by various well known mechanical
contrivances, 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,-
First. The peculiar combination and arrangement of the two horizontal bed-
plates A and B in the form of a T with their sliding upright standards E, E¹, and
sliding turntable C, substantially in the manner and for the purpose hereinbefore
described and illustrated by Figs. 1, 2, and 3 of my Drawings.
Secondly. The peculiar combination and arrangement of the two horizonal bed-
plates A and B in the form of a T, with their sliding upright standards E, E¹, and
sliding standard F carrying a radial arm G, substantially in the manner and for
the purposes herein before described and illustrated by Figures 2 and 3 of my
Drawings.
In witness whereof, I, the said James Garvie, have hereunto set my hand 1
and seal, this Twenty sixth day of June, in the year of our Lord One
thousand eight hundred and eighty.
Witness,
EDWIN P. ALEXANDER,
Consulting Engineer & Patent Agent,
14, Southampton Buildings,
Chancery Lane, W.C.
JAMES GARVIE. (L.S.)