Year: 1886

page_text: Date of Application, 1st Oct., 1886.
Complete Left, 1st July, 1887.
Complete Accepted, 12th Aug., 1887
We, JOHN WILLIAM DOOWBA and COLIN DocWRA, both of Balls Pond Road,
Islington, in the County of Middlesex, Contractors for Public Works, do hereby
declare the nature of this invention to be as follows:-
In order to sink lining in a well, or to prepare a well for receiving a lining, or a
hole for receiving a lining or cylinder-as in bridge building, and for other purposes-
it is usual in some cases to employ apparatus known as a miser, whereby gravel and
loose earth is removed as the lining or cylinder is advanced or sunk. Heretofore it
has been usual to rotate the miser by manual power, which renders the operation slow
and costly.
Now this invention has for object to expedite and cheapen such work, for which
purpose we adapt to the miser apparatus whereby it can be conveniently driven by
steam or other power, as we will proceed to explain.
To the rod that carries the miser, and whereby rotary motion is communicated to
it, there is adapted a wheel in relation to which the misering rod is able to slide
lengthwise, the arrangement being such nevertheless that the wheel cannot be rotated
independently of the rod, or, according to a modification, such that the wheel can slip
only when excessive resistance is offered to the rotation of the miser, as for example
in the case of contact with hard ground. The said wheel has rotary motion
communicated to it from a suitable motor, such as a steam engine. The motion may
be communicated to it in any convenient way, as for example through bevel or other
gearing, a slip or friction coupling being introduced between the motor and the
misering rod in order to avoid breakage of the machinery in the event of the miser
meeting with any excessive obstruction to its rotary motion. The apparatus is so
arranged that the direction of rotation of the wheel can be readily reversed so as to
close the door or doors of the miser, (which we prefer to construct with two doors,)

page_text: and that the wheel before referred to can be moved clear of the hole to admit of the
withdrawal of the miser rods and miser.
Apparatus to operate on the principle of this invention may be constructed under
various modifications, and in some cases where it is not convenient to place the wheel
that is in connection with the misering rod concentric with the well or hole-as for
instance when misering a series of comparatively small holes to sink a cylinder or
lining of large diameter-we connect that part of the rod that passes through the
wheel by a connecting rod with universal joints to the rod in a well or hole.
Dated this 1st day of October A.D. 1886.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery or Apparatus for Misering.
We, JOHN WILLIAM DOCWRA, and COLIN DOCWRA, both of Balls Pond Road,
Islington, in the County of Middlesex, Contractors for Public Works, 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 :-
In order to sink lining in a well, or to prepare a well for receiving a lining, or a
hole for receiving a lining or cylinder-as in well sinking, bridge building, and other
purposes, or in sinking wells and holes generally, whether lined or not it is usual,
in some cases, to employ apparatus known as a miser, whereby gravel and loose earth
are removed as the lining or cylinder, when used, is advanced or sunk. Heretofore
it has been usual to rotate the miser by manual power, which renders the operation
slow and costly.
Now this invention has for object to expedite and cheapen such work, for which
purpose we adapt to the miser apparatus whereby it can be conveniently driven by
steam or other power, such as that of gas, compressed air, and horse power, as we
will proceed to explain.
To the rod that carries the miser, and whereby rotary motion is communicated to it,
there is adapted a wheel in relation to which the misering rod is able to slide length-
wise, the arrangement being such nevertheless that the wheel cannot be rotated
independently of the rod, or, according to a modification, such that the wheel can slip
only when excessive resistance is offered to the rotation of the miser, as for example in the
case of contact with hard ground. The said wheel has rotary motion communicated
to it from a suitable motor such as a steam engine. The motion may be communicated
to it in any convenient way, as for example through bevel or other gearing, a slip or
friction coupling being introduced between the motor and the misering rod in order
to avoid breakage of the machinery in the event of the miser meeting with any
excessive obstruction to its rotary motion. The apparatus is so arranged that the
direction of rotation of the wheel can be readily reversed so as to close the door or
doors of the miser, which we prefer to construct with two doors, and that the wheel
before referred to can be moved clear of the hole to admit of the withdrawal of the
misering rods and miser.
Apparatus to operate on the principle of this invention may be constructed under
various modifications, and in some cases where it is not convenient to place the wheel
that is in connection with the misering rod concentric with the well or hole as for
instance when misering a series of comparatively small holes to sink a cylinder or
lining of large diameter-we connect that part of the rod that passes through the
wheel by a connecting rod with universal joints to the rod in a well or hole.
Referring to the accompanying six sheets of drawings,
Fig. 1 is a plan or top view, and
Fig. 2 an elevation partly in vertical section of apparatus according to this invention

page_text: Fig. 3 is a plan or top view partly in section of a miser.
Figs. 4 and 5 are respectively an elevation partly in vertical section, and a plan or
top view, illustrating means for throwing the wheel that rotates the misering rod in
and out of gear with the driving mechanism.
Figs. 6 and 7 are similar views to Figs. 4 and 5, illustrating part of the misering
apparatus so arranged that it can be turned to one side of a hole or well that is being
excavated.
Figs. 8 and 9 illustrate modified arrangements of gear for driving the misering
rod and miser.
Fig. 10 is an elevation partly in vertical section illustrating the application of
apparatus according to this invention to a certain kind of work hereinafter referred to.
Referring to Figs. 1 and 2,
1 is a rod that carries the miser; 2 is a bevel wheel through which the rod 1 can
slide lengthwise, but with which it is compelled to rotate by means of a feather or
feathers 3. 4 is a support or bearing for the wheel 2; it is carried by framework 5
that also serves to carry the driving mechanism, and is formed with a recess or
cavity 4 to contain lubricant. The wheel 2 is driven by a bevel pinion 6 fixed to
a shaft 7. 8 and 9 are bevel wheels mounted loosely on the shaft 7, and gearing with
a bevel wheel 10 loosely mounted on a shaft 11. The wheel 10 is driven from the
first motion shaft 12 by toothed gearing 13 through the intervention of a friction
ring or collar 14 that can be adjusted lengthwise on the shaft 11, so as to be caused
to bear with greater or less force on the back of the wheel 10. By this arrangement,
which forms a friction coupling, the ring or collar 14 will slip on the back of the
wheel 10 in the event of the miser meeting with any excessive obstruction to its rotary
motion. 15 is a clutch coupling arranged to slide on, but keyed by a feather to, the
shaft 7. 16 is a lever for operating this clutch for the purpose of throwing it in gear
with one or other of the wheels 8 and 9, for the purpose of driving the miser in one
direction or the other, or, for disengaging it from either wheel when the miser is to
be stopped. 17 is a swivel shackle attached to the rod 1 by which such rod and its
miser with excavated earth may be drawn up when desired, by any convenient means.
The shaft 12 is driven by a belt passing around the pulley 12 a, or by any other
convenient means operated by steam or other power, as hereinbefore mentioned.
In the arrangement illustrated in Figs. 4 and 5, the bevel pinion 6 is arranged to
slide upon but to rotate with the shaft 7 in order that it may be thrown in and out of
gear with the wheel 2 by a suitable lever, when necessary.
In Figs. 6 and 7, the support or bearing 4 is pivotted at 17, so that it and the
wheel 2 can be moved to one side of the hole or well that is being excavated, as shown
in dotted lines in Fig. 7 for the purpose of withdrawing the misering rod and miser.
To facilitate this movement of the support or bearing, it is provided with a roller 19
arranged to run on a track or way 20. The support or bearing 4 is fixed, when in
its working position, by any convenient means. The pinion 6 is arranged to be thrown
in and out of gear with the wheel 2 as herein before described with reference to Figs. 4
and 5 by means of a hand lever 21.
In the arrangement shown in Figs. 8 and 9, the wheel 2 is a worm-wheel rotated
by a worm 6* on a shaft 7 that may be driven in any convenient manner by steam or
other power. Fig. 10 illustrates the application of apparatus according to this invention
for rotating the miser when it is employed for misering a series of holes that are not
concentric with that part of the rod that passes through the driving wheel 2. In this
case the said part of the misering rod 1 is connected to the part 1 of such rod
attached to the miser by a connecting rod 1* provided with universal joints at its
ends.
The miser (Figs. 2 and 3) comprises a vessel 22 of suitable material such as sheet
metal, and bent rods 23 fixed to the misering rod'1 in any convenient manner. 24, 24,
are openings in the bottom of the vessel 22, the metal so removed being bent or
arranged to form inclines or scoops 24 to cause earth and other substances against
which they operate to enter the vessel when this is rotated in contact therewith. 25 is
a rod pivotted at the upper and lower ends of the miser, and provided with a cross

page_text: bar 26. 27, 27, are plates secured to the rod 25, and serving as doors to the openings
24. 28, 28, are stops or abutments fixed to the side of the vessel 22, and serving to
limit the opening movement of the cross bar 26 and attached plates or doors 27.
The action the miser is as follows:-When it is rotated in the direction of the
arrow (Fig. 3), earth and other material with which it is in contact will be caused by
the scoops 24 to enter the vessel 22, and move the doors 27 sideways by friction due
to contact with the earth etc., into the position shown in Fig. 3, the opening movement
of the doors being limited by the stop or abutments 28. By reversing the motion
of the miser, the doors 27 will be caused to close the openings 24. The material
excavated will thus be prevented from falling out whilst the miser and its rod are
being raised, but nevertheless admitting of the escape of any water that may be present,
thereby preventing loss of work in needlessly raising the water.
Having now particularly described and ascertained the nature of the said invention,
and in what manner it is to be performed, we declare that what we claim is,
In machinery or apparatus for misering :-
1. Adapting to a miser, apparatus whereby it can be driven by fluid pressure sub-
stantially as hereinabove described.
2. The combination with a miser and a rod secured thereto, of a wheel through
which the said rod can slide lengthwise, and by means of which it is driven, and means
for rotating the said wheel by steam or other power, substantially as hereinabove
described.
3. In apparatus of the kind referred to in claim 2, the use of a friction coupling
substantially as described for the purpose specified.
4. Providing a miser having an opening or openings in its bottom, with a door or
doors for controlling such opening or openings, the arrangement being such that,
when the miser is rotated in one direction, the door or doors will be caused to uncover
the said opening or openings, and, when rotated in the opposite direction, will cover
or close it or them, substantially as hereinabove described.
5. In combination with a miser, improved machinery or apparatus for rotating such
miser, constructed, arranged, and operating substantially as hereinabove described
with reference to and as shown in Figs. 1 and 2; or as in Figs. 4 and 5; or as in
Figs. 6 and 7; or as in Figs. 8 and 9 of the drawings annexed.
6. The use for connecting a miser with that part of its operating rod that passes
through the wheel which drives the said rod when such miser and wheel are not
arranged concentrically, of a connecting rod with universal joints, substantially as
hereinabove described with reference to and shown in Fig. 10 of the drawings for the
purpose specified.
7. The improved miser constructed, arranged, and operating substantially as
hereinabove described with reference to and shown in Figs. 2 and 3 of the drawings
annexed.