Improvements in Machines for Facing the Ends of and Turning or Boring Gas Retort Mouths, Lids, Pipes, or Valves of D, Oval, or any other Shape or Section than Round; also for Cutting Oval Shaped Holes in Boiler and other Plates, Castings, and the like.
Year: 1885

page_text: Improvements in Machines for Facing the Ends of and Turning
or Boring Gas Retort Mouths, Lids, Pipes, or Valves of D,
Oval, or any other Shape or Section than Round; also for
Cutting Oval Shaped Holes in Boiler and other Plates,
Castings, and the like.
I JOHN RUSCOE, of the Albion Works, Hyde, in the County of Chester, Engineer,
do hereby declare the nature of said Invention for IMPROVEMENTS IN MACHINES
FOR FACING THE ENDS OF, AND TURNING OR BORING GAS RETORT MOUTHS, LIDS,
PIPES OR VALVES OF D, OVAL, OR ANY OTHER SHAPE OR SECTION THAN ROUND,
ALSO FOR CUTTING OVAL SHAPED HOLES IN BOILER AND OTHER PLATES, CASTINGS
AND THE LIKE, to be as follows:-
My invention is an improvement upon the Invention for which Letters Patent
were granted to me on the 19th day of October 1883 N° 4896 and it consists
chiefly in imparting to the cutting tool a movement on its axis simultaneously with
and in addition to its travelling motion, the chief object being to maintain the face
of the cutting tool always at right angles to the face of the work, the mechanism
employed for this purpose being applicable to other machines for facing, turning,
or boring where the cutting tool describes an elliptical or irregular course.
In applying my Improvements to a machine for facing or turning the lid of a
gas retort or similar article I fix a stationary "former" provided with an eccentric
or cam groove in its face to the headstock of the machine, the outer surface of the
"former" being concentric to the eccentric groove: the machine spindle projects
through or beyond the "former" and carries an arm or face plate in which is a
radial slot; a stud is passed through and secured to the shank of a sliding block
and the inner end of the stud is provided with a bowl which rests in the eccentric
groove in the "former."
The holder for the cutting tool is fitted in and passes through the sliding block
and a collar formed on its back end serves partly to hold it in its place; in the face
of this collar is a recess and a corresponding projection is made on one face of an
independent collar, the other face of which has a recess cut at right angles to the
projection; a small bracket that carries a stud is bolted to the arm or face plate
Dine 71

page_text: and supports a stud in line with the centre of the tool holder; on this end stud is
secured a small eccentric or stop wheel bolted to and free to be moved upon a
collar which has a projection on its face that lies in contact with the recess on the
independent collar, thus the collar on the tool holder and that on the end stud are
in a manner connected together by the independent collar.
The small eccentric or stop wheel on the end stud is flattened or curved where it
rests upon the "former" and as the arm or face plate revolves the eccentric groove
guides the cutting tool while the small eccentric or stop wheel causes the tool
holder to move on its axis and maintain the face of the cutting tool at about right
angles to the work,
My improved apparatus may be applied to. machines for cutting oval holes in
boiler and other plates, castings and the like.
In applying my Invention to portable machines for facing retort mouths or
other work I fix the "former" and other parts of the apparatus to the retort and
give motion to the arm or face plate and cutting tool in any convenient manner by
power or hand.
In place of making the outer surface of the "former" plain or smooth it may
have teeth all round, in which case the small eccentric or stop wheel would be
secured to a pinion in gear with the "former."
by any mechanical
The face of the cutting tool may be maintained approximately at right angles
to the face of the work from the surface of the "former
equivalent for the collars with recesses and projections.

page_text: Castings, and the like.
I JOHN RUSCOE, of the Albion Works, Hyde, in the County of Chester, Engineer,
do hereby declare the nature of said Invention for "IMPROVEMENTS IN MACHINES
FOR FACING THE ENDS OF, AND TURNING OR BORING GAS RETORT MOUTES, LIDS,
PIPES OR VALVES, OF D, OVAL, OR ANY OTHER SHAPE OR SECTION THAN BOUND,
ALSO FOR CUTTING OVAL SHAPED HOLES IN BOILER AND OTHER PLATES, CASTINGS
AND THE LIKE," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
My invention is an improvement upon the Invention for which Letters Patent
were granted to me on the 19th day of October 1883 N° 4986 and it consists
chiefly in imparting to the cutting tool a movement on its axis simultaneously with
and in addition to its travelling motion; the chief object being to maintain the face
of the cutting tool always at right angles to the face of the work, the mechanism
employed for this purpose being applicable to other machines for facing, turning
or boring where the cutting tool describes an elliptical or irregular course.
In applying my Improvements to a machine for facing or turning the lid of a
gas retort or similar article fix a stationary "former" provided with an eccentric
or cam groove in its face to the headstock of the machine, the outer surface of the
"former" being concentric to the eccentric groove; the machine spindle projects
through or beyond the "former" and carries an arin or face plate in which is a
radial slot; a stud is passed through and secured to the shank of a sliding block
and the inner end of the stud is provided with a bowl which rests in the eccentric
groove in the "former." The holder for the cutting tool is fitted in and passes
through the sliding block and a collar formed on its back end serves partly to hold
it in its place, in the face of this collar is a recess and a corresponding projection is
made on one face of an independent collar, the other face of which has a recess
cut at right angles to the projection; a small bracket that carries a stud is bolted
to the arm or face plate and supports a stud in line with the centre of the tool
holder, on this end stud is secured a small eccentric or stop wheel bolted to and
free to be moved upon a collar which has a projection on its face that lies in
contact with the recess on the independent collar, thus the collar on the tool
holder and that on the end stud are in a manner connected together by the
independent collar.

page_text: The small eccentric or stop wheel on the end stud is flattened or curved where it
rests upon the "former" and as the arm or face plate revolves the eccentric groove
guides the cutting tool while the small eccentric or stop wheel causes the tool
holder to move on its axis and maintain the face of the cutting tool at about right
angles to the work.
My improved apparatus may be applied to machines for cutting oval holes in
boiler and other plates, castings and the like.
In applying my Invention to portable machines for facing retort mouths or other
work I fix the "former" and other parts of the apparatus to the retort and give
motion to the arm or face plate and cutting tool in any convenient manner by
power or hand,
In place of making the outer surface of the "former" plain or smooth it may
have teeth all round in which case the small eccentric or stop wheel would be
secured to a pinion in gear with the "former."
The face of the cutting tool may be maintained approximately at right angles
to the face of the work from the surface of the "former" by any mechanical
equivalent for the collars with recesses and projections.
And in order that my Invention may be fully understood and readily carried
into effect I will describe the accompanying Sheet of Drawings, reference being had
to the figures and letters marked thereon.
Figure 1 is a side elevation. Fig. 2 a front elevation and Fig. 3 a back elevation
of a machine to which my Improvements, are applied. Fig. 4 is a sectional plan on
the line A. B, Fig. 1. and Fig. 5 is a similar section with some of the parts in a
different position.
Similar letters refer to similar parts throughout the several views.
a is part of the frame of the machine or apparatus which may be secured to.
the work to be operated upon, or form an independent machine; a¹ the spindle on
which are mounted the ordinary cone driving pulleys and a worm a³ which gears
into a worm wheel b mounted on a shaft b¹; to a flange a³ on the frame a is bolted
a former or template c which can be readily changed as required; the “former”
has a projecting ledge c¹ on its lower face which ledge is made concentric or
parallel with the retort mouth or other article to be faced, turned, or bored, in
place of this projecting ledge c' an eccentric groove may be made in the "former."
To the lower end of the shaft b¹ is secured a plate d which is slotted at d' and has
a slide across its lower face. In this slide is fitted a face plate e on the lower side
of which is formed a slide e¹ on which is fitted a bracket f to which the turning or
other tool g is connected by a vertically adjustable slide g¹ which may be actuated
automatically by suitable mechanism, not shown, when the machine is used for
boring. The bracket f can be moved along the slide e¹ to adjust the position of
and feed the tool g by a screw h. In the face plate e is fitted a stud i the upper
end of which passes through the slot & and is provided with a collar i to which
are pivoted two bowls jj which rest in contact with the eccentric or other shaped
face of the projecting ledge c². A collar k with a slide across its lower face is
secured to the lower end of the stud i and an independent collar 7 is fitted so as to
slide on the collar k; the collar has a slide across its lower face at right angles to
the slide in k and fitted into the lower slide in 7 is a collar m secured to a spindle m¹
which passes through a bearing in the vertically adjustable slide g¹; the tool g
being connected to the spindle m² by means of a collar m².
The operation is as follows:-The machine, if a portable one, is secured to the
retort mouth or other article to be faced, turned, or bored and a "former" c with
a projecting ledge c¹ or a groove of suitable shape to correspond with the desired
path or travel of the cutting tool g is secured to the flange a³. The Drawing does
not illustrate the mechanism for giving an up and down motion to the frame a and
tool as this may be accomplished in any convenient manner. The point of the
cutting tool g is adjusted and set by means of the screw h and when this has been
done the machine is set in motion and as the worm wheel b is turned the shaft b¹

page_text: carries round the plate d and the face plate e with the stud i, bracket f and tool g
so that the bowls jj lying against the eccentric or other shaped edge o¹ of the
"former" c give to the bracket f and tool g a motion to and from the shaft b¹
corresponding to the outline of the "former" and simultaneously with and in
addition to this motion the stud i guided by the bowls jj is moved on its axis and
by means of the collar k, independent collar and collar m imparts an axial move-
ment to the spindle m¹, collar m² and so to the tool g the cutting face of which
is thus maintained approximately at right angles to the face of the work which is
being faced, turned or bored.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is-
1. In a machine of the class hereinbefore specified, imparting an axial move-
ment to the cutting tool simultaneously with and in addition to its ordinary
travelling motion along the surface of the work, for the purposes herein set forth.
2. In a machine of the class hereinbefore specified, the combination with
mechanism for traversing the cutting tool, of mechanism for imparting an axial
movement to the cutting tool, substantially in the manner and for the purposes
described and as illustrated by the Drawings annexed.