AN IMPROVEMENT IN FEED GEAR FOR SHAPING AND SUCH LIKE MACHINES to be as follows:-
Year: 1884

page_text: I, PIERRE PHILIPPE HURÉ of Paris in the Republic of France, Engineer do hereby
declare the nature of the said invention for "AN IMPROVEMENT IN FEED GEAR FOR
SHAPING AND SUCH LIKE MACHINES to be as follows:-
"
This invention relates to apparatus for giving the feed movements to the rest
which carries the material operated on by the rotary or reciprocating cutters of
shaping or such like machines, the chief objects being to provide sufficient constant
tension of the band which works the feed gear, to arrange the gearing of the feed
so as to suit various positions and attitudes of the rest, and to give facility for
operating the feed in either direction by the simple movement of a lever.
Taking as an example, a shaping machine consisting of a pedestal frame carrying
the horizontal spindle of a rotary cutter, and having at its side a bracket that can
be raised or lowered by means of a vertical screw, and on this bracket a slide rest
having a transverse and longitudinal movement, and assuming the screw for the
transverse movement as well as that for raising or lowering the bracket to be
worked by hand, as these movements are generally used merely to set the work,
I will describe how the longitudinal movement of the slide rest is effected according
to this invention. Within the pedestal is mounted a vertical spindle on which is
free to slide up and down a loaded and guided sleeve bracket carrying in bearings a
horizontal spindle having on its outer end a pulley and on its inner end a bevil
pinion gearing with a pinion fitted with a feather sliding in a key groove of the
vertical spindle. The pulley is driven by a band from a pulley on the spindle of
the rotary cutter or on any other suitable rotating spindle, and these pullies may
be conical so as to give means of varying the speed of the feed gear, the weight of
the sleeve bracket giving the required tension to the band. The vertical spindle
has also on it another sliding sleeve bracket carrying either worm or bevil gear
by which is driven a horizontal transverse spindle extending through the base of
the slide rest, this horizontal spindle accompanying the slide rest in its up or down
movement with the bracket. Within the base of the slide rest the horizontal
spindle works by bevil or worm gear or by helically toothed gear a sleeve free to
revolve on the longitudinal feed screw of the slide rest between stationary cheeks
which prevent the sleeve from moving longitudinally. One end of the sleeve is
hollowed out conically to receive a cone clutch which is fitted with a feather sliding
C

page_text: in a key groove of the longitudinal feed screw and this cone clutch can be moved
by hand by a fork lever so as to engage with the sleeve, in which case the sleeve
drives by friction the cone and the longitudinal feed screw, the cone being held
engaged by a spring catch which holds the lever in the position to which it is
moved by hand. When the catch is released either by hand or by the action of a
tappet adjusted to be acted on by the slide rest at the end of its desired stroke,
the lever is moved back by a spring disengaging the cone clutch and so stopping
the rotation of the feed screw. When feed in either direction is desired, the bevil
gear for driving the vertical spindle is made double with an intermediate clutch so
that the spindle can be caused to turn in either direction.
ABEL & IMRAY;
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: COMPLETE SPECIFICATION.
"
I, PIERRE PHILIPPE HURE of Paris in the Republic of France, Engineer, do
hereby declare the nature of my invention for "AN IMPROVEMENT IN FEED GEAR
FOR SHAPING AND SUCH LIKE MACHINES and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
This invention relates to apparatus for giving the feed movements to the rest
which carries the material operated on by the rotary or reciprocating cutters of
shaping or such like machines, the chief objects being to provide sufficient constant
tension of the band which works the feed gear, to arrange the gearing of the feed
so as to suit various positions and attitudes of the rest, and to give facility for
operating the feed in either direction by the simple movement of a lever.
Taking as an example, a shaping machine consisting of a pedestal frame carrying
the horizontal spindle of a rotary cutter, and having at its side a bracket that can
be raised or lowered by means of a vertical screw, and on this bracket a slide rest
having a transverse and longitudinal movement, and assuming the screw for the
transverse movement as well as that for raising or lowering the bracket to be
worked by hand as these movements are generally used merely to set the work,
I will describe how the longitudinal movement of the slide rest is effected according
to this invention. Within the pedestal, is mounted a vertical spindle on which is
free to slide up and down a loaded and guided sleeve bracket carrying in bearings
a horizontal spindle having on its outer end a pulley and on its inner end a bevil
pinion gearing with a pinion fitted with a feather sliding in a key groove of the
vertical spindle. The pulley is driven by a band from a pulley on the spindle of
the rotary cutter or on any other suitable rotating spindle, and these pulleys may
be conical so as to give means of varying the speed of the feed gear, the weight of
the sleeve bracket giving the required tension to the band. The vertical spindle
has also on it another sliding sleeve bracket carrying either worm or bevil gear by
which is driven a horizontal transverse spindle extending through the base of the
slide rest, this horizontal spindle accompanying the slide rest in its up or down
movement with the bracket. Within the base of the slide rest the horizontal
spindle works by bevil or worm gear or by helically toothed gear a sleeve free to
revolve on the horizontal feed screw of the slide rest between stationary cheeks
which prevent the sleeve from moving longitudinally. One end of the sleeve is
hollowed out conically to receive a cone clutch which is fitted with a feather sliding
in a key groove of the longitudinal feed screw and this cone clutch can be moved
by hand by a fork lever so as to engage with the sleeve, in which case the sleeve
drives by friction the cone and the longitudinal feed screw, the cone being held
engaged by a spring catch which holds the lever in the position to which it is
moved by hand. When the catch is released either by hand or by the action of a
tappet adjusted to be acted on by the slide rest at the end of its desired stroke,
the lever is moved back by a spring disengaging 'the' cone clutch and so stopping
the rotation of the feed screw. When feed in either direction is desired, the bevil

page_text: gear for driving the vertical spindle is made double with an intermediate clutch so
that the spindle can be caused to turn in either direction.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 of the accompanying drawings shews a vertical section and Fig. 2 a
sectional plan of a shaping machine with feed gear constructed according to my
said invention, Fig. 3 shews a front view of the same, Fig. 4 a longitudinal section
of the slide rest. Fig. 5 is a vertical section of a machine having a somewhat
- modified arrangement of the feed gear; Fig. 6 shews a longitudinal section of the
slide rests, Fig. 7 shews a front elevation of the same, and Fig. 8 shews a plan.
In the arrangement shewn at Fig 1 to 4, the driving pulley B, receiving motion
from a speed pulley A on the cutter spindle, is mounted on a spindle carried by a
weighted bracket C capable of sliding up and down upon guides, and serving to
keep the driving band in a state of tension the spindle of B being made to move
up and down, according as the cutter spindle alters its position. The spindle of B
carries a bevil pinion D gearing with a pinion D¹ attached to a bush or hollow
spindle carried by an arm of G. The bush has an internal feather entering a
groove in the vertical spindle E passing through it, so that in whatever position
the bracket G may be, the rotary motion of the wheel D is always imparted to
the spindle E. The motion of E is imparted by bevil gearing to the spindle F
carrying the worm gearing with the worm wheel G on the slide rest. The bevil
wheel on F imparts its motion to the latter by means of a feather taking into a
groove in the spindle, so as to permit of the latter moving to and fro with the slide
rest. Thus no matter what be the position of the cutter spindle or of the bracket,
or of the slide rest upon the bracket the motion will always be communicated
through the spindle F to the worm wheel G which is connected to a bevil pinion H
gearing with a pinion H¹ mounted loose on a screw spindle K carried by the slide
rest. The pinion H¹ carries part of a friction clutch, the other part of which, J,
slides on the screw spindle but has a feather taking into a groove thereon. Thus
by putting the clutch J in gear by means of the lever L, held by the catch M, the
rotary motion imparted to H¹ will be imparted to the screw spindle K which in its
turn imparts the requisite motion to the upper slide by screwing through the
nut P fixed to the lower slide. In order to throw the clutch out of gear auto-
matically-at-the-end-of-each-to-and-fro-motion, movable stops N N₁ are fitted to
the slide, which stops have double inclines, corresponding to double inclines on an
arm on the catch M, so that as the arm comes in contact with the one or other
stop, this will raise up the catch, whereupon a spring contained within the clutch
will be enabled to throw the part J out of gear. The catch M may be adjusted by
means of a screw so as to cause the lever to press the clutch J in gear with
increased force when greater power requires to be transmitted thereby,
In cases where the vertical motion of the driving pulley is not required, and
where the movement of the vertical spindle requires to be reversed at will, the
above described mechanism is modified as shewn in the arrangement at Figs. 5, 6,
7 and 8; the pulley A receiving motion from the cutter spindle, is in this case
mounted on a spindle carrying two bevil pinions B B¹, loose upon the same and a
toothed clutch G between the pinions which can slide upon the spindle but is
caused to revolve with the same. A pinion B in gear with B and B¹ is mounted
on a spindle D, so that on putting the clutch in gear with the one or the other of
the pinions B B by means of a lever, the pinion B₁, and consequently the spindle D,
will be made to revolve in one direction or the other. The spindle D is carried in
a bearing E fixed to the framing; it has a longitudinal groove, into which takes a
feather on the worm F which can slide thereon but is thus made to turn with it,
The worm is carried by a bracket H, connected by an arm G to the vertically
sliding table of the machine, which bracket also carries a worm wheel in gear
with F and through which slides the spindle J having a groove into which takes a
feather in the worm wheel, so that while the spindle J is free to move to and fro

page_text: longitudinally with the slide rest and to rise or fall with the table, rotary motion
will always be imparted to it in one direction or the other from the spindle D.
On the spindle J is a loose sleeve L on which is formed the one part of a friction
clutch, the other part L' of which is caused to rotate with the spindle but can
slide thereon by means of a feather and groove. On the sleeve L is fixed a pinion
with helicoidal teeth gearing with a second pinion K' on the screw spindle of the
slide rest. Thus when motion is to be imparted to the main slide rest the clutch L'
is put in gear by means of a lever M Fig. 8, whereby the spindle J will rotate the
screw spindle through the gearing K K₁, the screw spindle being made to work
through a fixed nut as before. The lever M is held in gear by a catch N having
an arm which is operated by stops 0 0' with inclines, as in the previous arrange-
ment, for the purpose of releasing the clutch and stopping the slide rest at the end
of each motion, the clutch being thrown out of gear by a spring as shown. As in
the previous case the catch N may be provided with screw adjustment for putting
additional pressure upon the clutch lever when increased power is required.
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
The construction and arrangement of feed gear for shaping and such like
machines substantially as herein described.