Improved Attachment for Lathes or similar Machines to be used for Planing, Shaping, and Punching and Shearing Metals and like Substances.
Year: 1889

page_text: Date of Application, 30th Sept., 1889
Complete Specification Left, 25th June, 1890-Accepted, 26th July, 1890
PROVISIONAL SPECIFICATION.
Improved Attachment for Lathes or similar Machines to be used for
Planing, Shaping, and Punching and Shearing Metals and like
Substances.
FRANCIS MURRAY ROGERS 21 Finsbury Pavement London Engineer and Electrician
do hereby declare the nature of this invention to be as follows:-
My Invention consists in "Improved apparatus for shaping metals and like
substances" and is preferably mounted upon and operated by a lathe or similar
machine having a slide rest or equivalent device for holding the cutting tool. A
standard preferably of cast iron is securely bolted to the bed. This standard is planed
upon its face, back, and sides, the sides being of V, flat, or other shape as may be
best suited for my purpose.
A sliding face plate is fitted to the standard and secured
thereto by a back plate and bolts and nuts. A horizontal groove is formed in the
back plate and in this a roller or guide block preferably adjustably mounted upon
the lathe mandril or equivalent face plate travels. The operation of this first part of
my invention is as follows: The material to be shaped is securely fastened by bolting,
screwing, or by a suitable vice to the sliding face plate, the roller if adjustably
mounted is now set so as to give the required travel to the sliding face plate, and
the tool held by the slide rest or equivalent tool holder brought up to the work.
Upon starting the lathe or similar machine a reciprocating motion in a vertical
direction is imparted to the sliding face plate and work mounted thereon; which can
be shaped in any desired manner, by the tool held by the slide rest or equivalent.
The second part of my invention consists in mounting a punch upon the sliding face
plate, the corresponding die or ferrule being mounted upon the standard.
cutting blade may also be mounted upon the sliding face plate, a similar plate being
mounted upon the base or other part of the standard.
A
By means of the foregoing, metal or other substances may be punched, sheared or
roughly shaped.
Selfacting motion can be imparted to the slide rest or other tool holder by a lever
and ratchet device or equivalent, operated by the sliding face plate.
Dated Sontember 30th 1889
FRANCIS MURRAY ROGERS.
COMPLETE SPECIFICATION.
Improved Attachment for Lathes or similar Machines to be used for
Planing, Shaping, and Punching and Shearing Metals and like
Substances.
FRANCIS MURRAY ROGERS 21 Finsbury Pavement London Engineer and Electrician
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 :-
My Invention consists in "Improved attachment for lathes or similar machines to
be used for paning shaping and punching and shearing metals and like substances"
and is preferably mounted upon and operated by a lathe or similar machine having a
slide rest or equivalent device for holding the cutting tool. A standard preferably
of cast iron is surely bolted to the bed. This standard is planed upon its face;
back and sides, the sides being of V, flat or other shape, as may be best suited for
my purpose. A sliding face plate fitted to the standard and secured thereto by a
back plate and bolts and nuts. A horizontal groove is formed in the back plate and
in this a roller or guide block preferably adjustably mounted upon the lathe mandril
Price 8d 1

page_text: or equivalent face plate travels. The operation of this first part of my invention is
as follows: The material to be shaped is securely fastened by bolting, screwing or
by a suitable vice to the sliding face plate, the roller if adjustably mounted is now set
so as to give the required travel to the sliding face plate, and the tool held by the
slide rest or
equivalent tool holder brought up to the work. Upon starting the lathe
or similar machine a reciprocating motion in a vertical direction is imparted to the
sliding face plate and work mounted thereon, which can be shaped in any desired.
manner by the tool held by the slide rest or equivalent. The second part of my
invention consists in mounting a punch upon the sliding face plate, the corresponding
die or ferrule being mounted upon the standard. A cutting blade may also be
mounted upon the sliding face plate a similar blade being mounted upon the base or
other part of the standard.
By means of the foregoing, metal or other substances may be punched; sheared or
roughly shaped.
Self acting motion can be imparted to the slide rest or other tool holder by a lever
and ratchet device or equivalent operated by the sliding face plate.
The construction and operation of my invention will be readily understood by
reference to the annexed drawing in which :-
Fig. 1, is a side elevation of an ordinary back-geared lathe shewing in section the
shaping apparatus mounted upon the bed.
Fig. 2, is an end view of the shaping apparatus and slide rest.
Fig. 3, is a front view shewing the face plate of the shaper with punching device
attached to its side.
Fig. 4, is a plan of the shaper.
Fig. 5, is a front view of shaping apparatus shewing shearing device at the side,
and vice mounted upon the face plate.
Fig. 6, is a front view of detached punch and ferrule for bolting to the front of
face plate and lathe bed.
Fig. 7, is an eccentric sheave for screwing direct to the nose of mandril.
Fig. 8, is a plan of tool holder.
In the drawing 1, is the lathe, which may be replaced by any similar machine
fitted with a suitable tool holder, and capable of producing a reciprocating motion
in a vertical direction; upon the bed 2, is mounted the shaping apparatus which is
shewn in fig. 1, in section taken upon line A B. fig. 2. 4, is the ordinary lathe face
plate, in one of the grooves of which 5, is mounted a hardened steel pin 6, furnished
with a nut 7, and washer S, for adjusting the pin to any desired travel. 9, is the
standard which I prefer should be of oblong section; see fig. 4.
It may however
bé formed of V, section see dotted lines 9", and in either case an adjustable packing
strip 10, see also fig. 2, having set screws 11, is advantageous for taking up wear.
The standard, is planed on all four sides and a vertical slot 12, is formed in it
"centrally. A sliding face plate 13, having grooves 13", is planed to fit the standard 9,
and is secured thereto by a back plate 14, by means of screwed bolts 15. A
horizontal groove 16, is formed in the back plate and within this travels a roller or
-block 17, mounted upon pin 6. The work to be shaped is bolted to the face plate 13,
as shewn in figs. 1 and 2, or it may be held by a suitable vice mounted thereon see
fig. 5, or the vice may form part of the plate. 18, is an ordinary slide rest or fool
holder forming part of the equipment of the lathe or equivalent machine upon
which the shaping apparatus is mounted.
: I have shewn a form of tool holder 19, in the slide rest having a knuckle joint 20,
this is servicable when a very fine cut is being taken as during the upward stroke
of the face plate; the cutting tool 21 trails over the work; this however is not in all
cases necessary as I find the ordinary rigidly fixed slide rest tool will produce a
perfectly even cut provided the feed be so adjusted as to take place when the tool is
clear of the work, see also fig. 8. Very satisfactory results can be obtained by
operating the slide rest or other tool holder 18, by hand in the well known manner;
but in the case of power driven tools I prefer to employ the automatic feed shewn ;
this consists of a ratchet wheel 22, having a sleeve 23, the sleeve is made to fit the

page_text: square upon the screwed feed spindle 24, of the rest or other tool holder. Upon the
exterior surface of the sleeve which is turned; is mounted a ratchet lever 25, having
a pawl 26, engaging with the teeth of the ratchet wheel 22, the other end of
the lever 25, is furnished with a slot 27, which is driven by a pin 28, upon the face
plate 13. When the tool holder is required to work lengthwise with the bed the
lever 25, and ratchet 22, are removed and replaced upon the other screwed feed
spindle 24. In this case any desired feed may be obtained by a rope or chain 29,
running over pulleys 30 and attached to the face plate 13, and ratchet lever 25. I
also find this rope or chain (when not employed in driving the feed) very convenient
for attaching a weight 31, which acts as a counter balance when heavy work is
mounted upon the face plate 13.
The operation of this first part of my invention is as follows:-The work to be
tooled being bolted to the face plate 13, of the shaping apparatus or secured in the
vice bolted thereon or forming part thereof see fig. 5, the lathe or equivalent
machine is set in motion. The pin 6, having been previously adjusted to the required
travel and secured by the nut 7. The roller 17, mounted upon it or a slide block
replacing it travels to and fro in the horizontal slot 16, thereby imparting a
reciprocating motion in a vertical direction to the face plate and the work mounted
thereon which is shaped in any desired manner by operating the tool held in the slide
rest or equivalent by hand or automatically as may be most convenient.
The second part of my invention consists in mounting a punching and shearing
device together or separately upon the sliding face plate 13, and standard 9, or the
bed 2. In fig. 3, I have shewn a boss 32, cast upon the side of the face plate 13.
In this is inserted a steel punch 33, secured by the screwed stud 34. The die 35, is
recessed into a lug 36, which in this case forms part of the standard 9. Fig. 6,
shews a plate 37, having bolt holes 38, through which bolts pass, the heads being
fitted so as to run freely in the slots 13ª, in face plate 13. The die is in this
case mounted in a separate casting 36, bolted to the bed 2, of the lathe or equivalent
tool.
Fig. 5, shews one arrangement I employ for shearing or cropping wire or plates.
A boss 32, is cast with the face plate 13, and a knife or shear 39, suitably mounted
The
upon a seating block 39', which is stepped into the boss and secured by studs.
under knife 391, is mounted upon a lug 36, forming part of standard 9. In some
cases I mount the shears upon separate castings in a manner similar to that described
under fig. 6, for the punch.
The operation of both the punching and shearing devices is as follows: When
operated by a pin mounted in one of the slots of the face plate as described for shaping
metals, the pin is so set as to just allow the punch or knife as the case may be to
lift clear of the material to be perforated or cut; a short reciprocating motion of
great power is thereby imparted to the punch or knife.
Although I have described the shaping, punching and shearing devices as actuated
by an adjustable pin mounted in the face plate, I do not confine myself to such means,
as there are some classes of work for which a permanently fixed travel is desirable
in such cases an eccentric 41, see fig. 7, of suitable throw can be screwed to the nose
of the lathe mandril or equivalent and the motion obtained thereby.
I am aware that attachments for lathes are in use whereby metals mounted upon
a rising and falling table are shaped by a horizontal or other reciprocating motion of
the cutting tool, but to such I lay no claim :-
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 application to and the use in or with a lathe or equivalent machine
provided with an adjustable tool holder, of a face plate having a vertical reciprocating
motion imparted to it by a fixed or adjustable pin and roller or guide block, or a cam
mounted upon a mandril or equivalent, and moving in a horizontal groove in the

page_text: back plate attached to said face plate for the purpose of planing, shaping or punching
and shearing metals or like substances in the way and manner described.
2nd. The combination in or with an attachment for lathes and the like machines of
a punch and shearing blade or either of them separately attached to the moving face
plate, the ferule or bottom shearing blade being mounted upon the standard for
effecting the purposes described.
.
3rd. In an attachment for lathes and the like machines operated as described the
combination of a vice mounted upon or forming part of the grooved or other face
plate, for the purpose of holding the material operated upon; by the cutting tool in
the way and manner described.
4th. The combination in or with an attachment for lathes and the like tools of the
self acting feed device operated by the face plate in the way and manner described.
Dated June 25th 1890.
FRANCIS M. ROGERS.