IMPROVEMENTS IN MACHINERY FOR BORING AND DRILLING
Year: 1859

page_text: Sealed the 9th March 1860, and dated the 11th October 1859.
PROVISIONAL SPECIFICATION left by the said Charles Frederick Beyer
at the Office of the Commissioners of Patents, with his Petition, on the
11th October 1859.
I, CHARLES FREDERICK BEYER, of the Firm of Messieurs Beyer, Peacock,
and Company, of the Gorton Foundry, near the City of Manchester, Engineers,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY FOR BORING AND DRILLING," to be as follows:-
My Invention is chiefly applicable for boring and drilling the frames and
other parts of locomotive steam engines, but it may be used for other purposes.
In performing my Invention I make use of a bed plate, on which are
mounted one or more headstocks, which are made to slide to and fro length-
wise on the bed plate. The headstocks are each provided with one or more
drilling or boring spindles, which are capable of being moved transversely or
at right angles to the bed plate. The frames of the locomotive engines or
other articles to be drilled are secured to the bed plate, and the drills are
brought over the centres of the holes to be drilled by moving the headstocks,
or the drilling or boring spindles, or both of them, as may be required. The

page_text: headstocks are moved upon the bed plate, and the drilling, spindles are moved
transversely on the headstocks by screws or racks and pinions, or other known
mechanism; and the drill spindles are driven by straps, belts, or gearing, as
may be most convenient, either separately or together.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Frederick Beyer in the Great Seal Patent Office
on the 10th April 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
FREDERICK BEYER, of the Firm of Messieurs Beyer, Peacock, and Company,
of the Gorton Foundry, near the City of Manchester, Engineers, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of October, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-third year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Charles Frederick Beyer, Her special licence that I, the said
Charles Frederick Beyer, my executors, administrators, and assigns, or such
others as I, the said Charles Frederick Beyer, 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 BORING AND DRILLING," upon
the condition (amongst others) that I, the said Charles Frederick Beyer, 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 per-
formed, 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.
NOW KNOW YE, that I, the said Charles Frederick Beyer, do hereby
declare the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement (that is to say):-
My Invention is chiefly applicable for boring and drilling the frames and
other parts of locomotive steam engines, but it may be used for other purposes.

page_text: In performing my Invention I make use of a bed plate on which are
mounted one or more headstocks, which are made to slide to and fro length-
wise on the bed plate. The headstocks are each provided with one or more
drilling or boring spindles, which are capable of being moved transversely or
at right angles to the bed plate. The frames of locomotive engines or other
articles to be drilled are secured to the bed plate, and the drills are brought
over the centres of the holes to be drilled, by moving the headstocks or the
drilling or boring spindles, or both of them, as may be required; the head-
stocks are moved upon the bed plate, and the drilling spindles are moved
transversely on the headstocks by screws, or racks and pinions, or other
known mechanism; and the drilling spindles are driven by straps, belts, or
gearing, as may be most convenient, either separately or together.
And in order that my Invention may be fully understood and readily
carried into effect, I will proceed to describe the means pursued by me,
reference being had to the accompanying Sheet of Drawings, and to the
figures and letters marked thereon.
Fig. 1 is a side elevation of my improved machinery for boring and drilling ;
Fig. 2 is a transverse section of the same; Fig. 3 is a plan, and Fig. 4 an
elevation, of one of the drilling headstocks taken from the other side of the
machine; Figs. 5, 6, and 7, are detached views on an enlarged scale of the
driving apparatus for the drilling spindles.
a is the bed plate, on which are mounted three drilling headstocks. I wish
to remark that although I have shewn three headstocks, because that is the
most convenient number for locomotive engine work, I do not intend to limit
myself to this number, as it may be increased or diminished to suit the
particular class of work under operation. Each headstock consists of the two
standards b, b, connected by the cross bean c, on which the slide plate d is
moved by the screw e; the drilling spindles fare supported in bearings fixed
or cast to the plates d. The standards b, b, may be lengthened and the cross
beam c connected to it in such wise that it can be raised and lowered in the
same manner as the cross beam of an ordinary planing machine.
The requisite revolving motion may be communicated to the drilling spindles
in the following manner: The main driving shaft g is supported at each end
of the machine in bearings, and is turned round by a strap actuated by steam
or other power, passing around the driving pulley g'; this shaft passes through
the bearings b', which are cast or fixed to the slips or guides of the standards
b, as shewn best in Figs. 4 and 5; between each pair of bearings 61 is a mitre
pinion h; these pinions are capable of sliding upon the shaft g, but they are
connected to it by keys fitting in a groove; each pinion h gears into a similar

page_text: pinion ¹ fixed to a short shaft i revolving in a carrier j, which swivels in
bushes fixed in the bearings 6'; to these shafts i are fixed the speed pulleys ;
each set of which gives motion to one drilling spindle by a strap 3, as shewn
in Fig. 2, which drives the speed pulleys k fixed to the shaft k supported in
the cross beams c; the centre headstock in Fig. 1 is shewn partly in section,
and on referring to this it will be seen that a bevel pinion on the shaft k¹ gears
into the pinion fixed on the shaft , to which is also fixed the bevel pinion
gearing into the wheel
through which the drilling spindle f works up and
down in the usual manner. In order to be able to stop or start each drilling
spindle independently of the others, the short shafts i are made to swivel
round the centre of the driving shaft g; this swivel motion is produced by
turning the eccentrics 62 partly round, see Figs. 5, 6, and 7; these eccentrics
are formed on the short shafts 63, which are supported by the slips attached to
the standards b, and pass through oblong slots in the swivel carriers j; the
shafts 63 are furnished with handles b. In Figs. 2 and 6 the eccentric b² is
shewn in the position it occupies when the shaft i is horizontal, and the strap
being tight is imparting motion to the speed pulleys and to the drilling
spindle; but when it is requisite to stop the spindle the attendant moves the
handle 6 from the position shewn in full lines in Fig. 6, to the position
indicated by dotted lines in Fig. 7, thereby turning the eccentric 62 partly
round, and changing the position of the swivel carrier j from that in which it
is shewn in Figs. 2 and 6 to that indicated in Fig. 7; by this means the speed
pulleys are raised, and the strap 3 is slackened to the extent required for
stopping the spindle. When it is again necessary to start the spindle that
had been stopped, the attendant moves the handle 6 into the position shewn
in full lines, and brings the speed pulleys to their original position, thereby
tightening the strap. I wish to remark that although I have shewn speed
pulleys on the shafts i and k¹, so as to be able to vary the speed of each
drilling spindle, it is evident that if the holes to be drilled are all of the saine
size or nearly so, the speed pulleys may be fixed on the main driving shaft,
and a fast and loose, or a single pulley only, may be substituted for the speed
pulleys on the shafts i and k', or any other known arrangement of gearing to
communicate motion to the shafts k¹ may be adopted.
The headstocks can be moved to and fro on the bed plate in the following
manner: At each side of the bed plate is fixed a rack m, and at each side of
each headstock is a vertical shaft m', to the lower ends of which are fixed the
pinions m gearing into the racks m, as shewn in Figs. 1 and 2; to the upper
ends of the shafts m¹ are fixed the worm wheels m³, gearing into the worms n
fixed on the shafts n³, which are supported on the cross beams c; consequently

page_text: when this shaft is turned round by means of the handle n², see Fig. 2, the
headstocks are moved along the bed plate a.
The mode of operation is as follows:-The frames of locomotive engines or
other articles to be drilled are secured to the bed plate a, which is furnished
with slots for the holding down bolts, as shewn in Fig. 3, and the drills are
brought over the centres of the holes to be drilled by moving the headstocks, or
the drilling or boring spindles, or both of them, as may be found necessary;
the attendant then moves the driving strap on to the pulley g¹, which imparts
the requisite rotary and downward motions to the spindles f. By means of
these improvements the time and labor of moving the articles to be bored or
drilled is entirely saved, and the holes are kept in straight lines and at right
angles to each other when required.
Having thus stated the nature of my Invention and described the manner of
performing the same, I wish it to be understood that I make no claim to any
of the well-known parts of machinery for boring and drilling, which I have
had occasion to describe in order to illustrate my Invention; but what I do
claim is,―
First, the general arrangement and combination of machinery for boring
and drilling, as shewn and described.
And, secondly, the application of the swivel carriers or other equivalent
apparatus to boring and drilling machines, for slackening and tightening the
strap passing over speed pulleys for the purpose of starting and stopping the
drilling spindles.
In witness whereof, I, the said Charles Frederick Beyer, have hereunto
set my hand and seal, this Seventh day of April, in the year of our
Lord One thousand eight hundred and sixty.
CHARLES FREDERICK BEYER.
(L.S.)