Year: 1887

page_text: Date of Application, 23rd Nov., 1887
Complete Specification Left, 23rd Aug, 1888
Complete Specification Accepted, 12th Oct., 1888
RESERVE CO
JOHN WILD of Chadderton near Oldham, in the County of Lancaster, Engineer do
hereby declare the nature of this invention to be as follows :-
This invention relates to improvements hereinafter described, in the construction of
drilling and boring machines whereby the same are made more efficient.
My said improvements are applicable to various kinds of machines, whether they be
portable or otherwise, and whether they be driven by hand or other motive power.
These improvements consist in the application of a hand & self feeding arrange-
ment combined, so that the machine to which these said improvements are applied
may be self feeding or otherwise; also in the application and use of a roller
bearing to take the thrust of the spindle caused by the feed, and also in
gearing for quickly raising or lowering the drill spindle and the employment of a
number of differential wheels for varying the amount of feed given to the spindle.
The drill spindle is carried by a suitable bracket or frame with two bearings
and between these two bearings, a sleeve or bush is placed on one end of which
is secured a bevil wheel for driving purposes, and on the other or upper end is
secured a spur wheel, and above this sleeve and passing through the upper bearing
and projecting above it so as to allow a wheel to be secured upon it, is a threaded
nut, or bush into which the spindle is screwed, on the lower end of this bush or
nut, a spur wheel is secured of the same diameter as the spur wheel last mentioned,
but having a different number of teeth. Above this last mentioned wheel but
below the lower part of the upper bearing and loosely on the bush or nut is
placed a collar or carrier, carrying a suitable number of rollers which are in
contact with the upper side of the wheel & the lower side of the upper bearing,
thereby forming a roller bearing when pressure is applied to the spindle by means
of the nut.
<>-
Carried on an eccentric stud and gearing into both the above mentioned wheels
is a double spur wheel, differing in diameter to the beforementioned wheels and
each half differing in the number of teeth; and by varying the diameter of this
double or differential wheel a greater or less feed can be given to the spindle.

page_text: By placing an additional spur wheel on the before mentioned sleeve and gearing the
same into a spur wheel of a smaller diameter, and by means of frictional or other
gearing driving another wheel of increased diameter and the last named driving a
smaller wheel, which is secured on the end of the bush or nut projecting above the
upper bearing the spindle will be raised or lowered according as the thread on the 5
spindle be right or left hand and by stopping or retarding the revolving motion of
the bush or nut the spindle will be raised or lowered according as the thread on the
spindle be right or left hand.
For hand power machines I place a hand wheel on the projecting part of the nut or
bush above the upper bearing so as to enable the spindle to be raised or lowered 1
without revolving the same, and by use of the said hand wheel the spindle may be fed
by hand when in motion.
Dated this Twenty second day of November 1887.

page_text: I, JOHN WILD of Chadderton near Oldham in the County of Lancaster, Engineer,
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, that is to say :-
In improvements in Drilling and Boring Machines, whether they be portable or
otherwise, or whether they be driven by hand or other motive power.
Now, the object of my invention is to produce a Drilling or Boring Machine to be
driven by any convenient motive power, which may be transmitted by belt, wheel, or
other gearing, as may be most desireable, and which may by the motion of the machine
itself be so constructed, that at the will of the operator, the spindle can be quickly
raised or lowered, and at the same time have an automatic feed motion attached, which
can be set in operation at any time as may be desired. Also, in the application of a
number of differential wheels for varying the amount of feed given to the spindle for
different classes of work. In the application of a Roller-bearing, to take the thrust
of the spindle, caused by the feed, and thereby reduce the friction, and in the applica-
tion of a Hand-wheel, for feeding the spindle by hand when it may be so desired, as
in the case of a hand or portable machine.
I will now proceed to describe my invention with reference to the accompanying
drawing.
Fig. 1, Sheet No. 1, illustrates the general arrangement of a machine made upon
my improved method, but it must be understood, that I do not confine myself to this
precise arrangement, for many other modifications may be made to suit different
requirements.
The Drill spindle G, is carried by a suitable frame K, with two bearings L and L',
and between these two bearings and passing through L, a sleeve or bush F, is placed
to which is attached the driving gear; on the upper end of F a spur wheel C³ is
secured, and above this sleeve F, and passing through the upper bearing L', and
projecting above it so as to allow a wheel M, to be secured upon it, is a threaded nut
or bush N, into which the spindle G is screwed, on the lower end of this nut or
bush N, a spur wheel C' is secured of the same diameter as the spur wheel C³ but
having a different number of teeth, above the wheel C but below the lower part of
the bearing L', and loosely on the bush or nut N, a collar or carrier H is placed,
carrying a suitable number of rollers, which are in contact with the upper side of the
wheel and the lower side of the bearing L', thereby, forming a Roller-bearing when
pressure is applied to the spindle G by means of the nut N.
Carried on an excentric stud A, so that they may be thrown out of -gear when

page_text: required by means of the lever E and knob E¹ and gearing into the spur wheels C
and C³ are a pair of differential wheels C and C¹ differing in diameter to the spur
wheels C and C³ and each differing in the number of teeth. By varying the diameter
and the number of teeth of these differential wheels, C and C a greater or less feed
can be given to the spindle G.
By gearing an additional wheel C into the spur wheel C³, and by means of the
friction disc O being pressed into contact with wheel C, by means of the lever 0¹,
operated by the screw on the Hollow shaft 03, revolved by the hand-wheel O³, and
connected by means of the bush O' to a spur wheel of larger diameter M³, driving a
wheel of smaller diameter M secured upon the bush or nut N, projecting above the
bearing L', the spindle G will be raised or lowered according as the thread on the
said spindle G be left or right hand.
By revolving the Hand-wheel O³ in the opposite direction and thereby raising the
lever O and with it the bush 0* and pressing the said wheel M¹ into contact with
the stationery or fixed friction disc M³ the motion of the bush or nut N will be retarded,
and the said spindle G will be raised or lowered according as the thread on the said
spindle G is right or left hand.
When it is desired to raise or lower the said spindle G by hand, then the hand-
wheel P can be revolved thereby causing the shaft P1 to rotate and in connection with
it (being secured upon the said shaft P the wheel M' which in its turn revolves the
said wheels M and M thereby causing the bush or nut N to revolve and so raise or
lower the said spindle G according to the direction of motion given to the
hand-wheel P.
Fig. 2 on sheet No. 2 represents a modification of my improvements which I use in
the case of small portable or hand Drilling machines.
The drill spindle O is carried by a suitable frame K with two bearings, and
ween these two bearings A¹ and A2 a sleeve or bush F is placed on one end
which is secured a bevil wheel F¹ for driving purposes and on the other or
upper end is secured a spur wheel E, and above this sleeve and passing through
the upper bearing A¹ and projecting above it so as to allow a wheel A to be
secured upon it is a threaded nut or bush B into which the spindle O is screwed, on
the lower end of this bush or nut B, a spur wheel D is secured (of the same diameter
as the spur wheel E but having a different number of teeth) above this wheel D but
below the lower part of the upper bearing A¹ and loosely on the bush or nut is placed
a collar or carrier C carrying a suitable number of rollers C¹ which are in contact with
the upper side of the wheel D and the lower side of the upper bearing A¹ thereby
forming a roller-bearing when pressure is applied to the spindle O by means of the
nut B.
The feeding of the spindle O is effected by a pair of differential wheels as before
described, in reference to Fig. 1. on sheet No. 1.
Fig. 3. on sheet No. 2. is a plan of a Roller-bearing as herein before described
A is the collar or carrier and C₁, C₁, C, C, are the rollers, the upper and the lower
side of which come in contact with the lower part of the bearing A' and the
upper side of the wheel D. But it must be understood that I do not confine
myself to this particular kind of Roller-bearing for Drilling and Boring Machines.
Many modifications can be made to suit different requirements for in the case of
large machines a greater number of Rollers can be employed, and they may be
made either conical or spherical, provided that there is a suitable path constructed
for the reception of the different kinds, in the wheel and bearing, or in specially
prepared washers.
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,
1st. The use and application of apparatus for quickly raising and lowering the
spindles of Drilling and Boring Machines

page_text: 2nd. The use and application of Roller-bearings to receive the thrust in Drilling
and Boring Machines.
3rd. The general arrangement of a Drilling and Boring Machine constructed
upon my improved method.
4th. The use and application of the Hand-wheels for the purpose of quickly
raising and lowering, and also feeding the spindle by hand when it is so desired.
5th. The use and application of a number of differential wheels for varying the
amount of feed given to the spindles of Drilling and Boring Machines as herein
before described.