IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR DRILLING STEEL AND IRON FALLERS
Year: 1884

page_text: We JOHN VAREY and MOSES HOLROYD, of the firm of Messrs Varey and Holroyd,
of Jesse Street Manchester Road Bradford in the County of York, Machine. Wool
Comb makers do hereby declare the nature of our invention for "IMPROVEMENTS
IN THE METHOD OF AND APPARATUS FOR DRILLING STEEL AND IRON FALLERS to
be as follows:-
,,
The object of this invention is to accomplish by an automatic machine the
drilling of steel and iron fallers. Hitherto the drilling has been accomplished by
machines regulated by hand both as regards the distance between the holes and
the pressure upon the drill.
In our improved method we are enabled by means of a selfacting machine to.
accomplish both the above operations without any hand-labor.
We accomplish our object in the following manner: the steel or iron faller to be
drilled is secured to a horizontal slide which is traversed by a screw upon the end
of which is fixed a ratchet wheel. Motion is in our machine given to. this ratchet
wheel by means of a mechanical arrangement as follows:
The revolving spindle carrying the drill running at a high speed, is carried upon
a slide; in machines ordinarily in use the spindle itself has been moved forward in
the operation of drilling, this slide is actuated forward by means of a L lever, the
shorter arm working into the slide, whilst to the end of the long arm a weight
capable of adjustment is suspended. This weight traverses the slide forward, and
by means of a worm shaft driven by a seperate band to that which imparts motion
to the drill spindle. Motion is imparted to a worm wheel mounted upon a shaft
upon which is a cam which operates upon a projection on the slide and brings the
same backwards raising the weight on the L lever.
•
To the side of the slide is mounted a catch rod which acts through levers upon.a
pawl in connection with a ratchet wheel secured on the end of the traverse screw
in the horizontal slide thereby automatically traversing the faller the distance
required each time a hole is bored. The catch rod is liberated from the lever by

page_text: sliding up an inclined plane and on the return of the slide the weight brings the
drill up against the faller and should the drill from any cause not make progress
the cam will take it back thus giving clearance and an opportunity for lubricating
the drill, the weight again operating upon the drill bringing it against the faller:
this may be repeated once or twice before the drill passes through the whole
thickness of the metal, which being accomplished, the drill is withdrawn and the
catch rod on the slide will actuate the ratchet wheel bringing the faller into the
position for the next hole.
Dated this 28th dor of Jennery 1884
WAUGH & CHAPMAN,
Agents for the said John Vary
and Moses Holroyd.

page_text: We, JOHN VAREY, and MOSES HOLROYD, of the firm of Mess" Varey & Holroyd,
of Jesse Street, Manchester Road, Bradford, in the County of York, machine wool
Comb makers, do hereby declare the nature of our invention for IMPROVEMENTS
IN THE METHOD OF, AND APPARATUS FOR DRILLING STEEL AND IRON FALLERS, and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
The object of this invention, is to accomplish by an automatic machine the
drilling of steel and iron fallers. Hitherto the drilling of steel and iron fallers has
been accomplished by machines adjusted by hand, both as regards the distance
between the holes and the requisite pressure upon the drill.
By our improved method we are enabled by means of a self acting machine to
accomplish both the above operations without any hand labor, which we will
describe by. aid of the accompanying drawings; in which Fig. 1 represents the side
elevation of our improved faller drilling machine. Fig. 2 is a plan of the same.
Fig. 3 is a back end view of our improved apparatus for moving forward and
withdrawing the drills. Fig. 4 is a partial section through the same, and Fig 5 is
an enlarged detail of the same.
The steel or iron fallers to be drilled, are secured to the saddle A on the horizontal
slide B through which a screw is passed, and upon one end thereof is secured a
ratchet wheel C; this part of the machine is of the ordinary construction, and the
automatic traversing of the saddle A is actuated in the manner as hereafter
described.
The revolving drill spindle S is supported by the head stock D, the back part
being carried upon the slide E and is operated on for putting pressure upon and
withdrawing the drill from the hole in the faller in the following manner: We
mount a bell crank or L lever F upon a stud, the short arm of the same acts upon
the lever G which works upon the centre stud F¹ as fulcrum, and is attached to the
slide E; to the long arm of the bell crank lever F we suspend a weight W, by
which the slide E, spindle S, and drill are traversed towards the saddle A and faller
secured thereto; and in order that the drill may be brought back when necessary
for cleaning out the hole or when bored through, we form a projection H on the
underside of the slide E, the said projection H being operated upon in the following
manner:
To the frame in which slide E works, we mount worm J; which is driven by the
pullies K; gearing with this worm is wheel J₁ secured on the same shaft as the
tappet M. At each revolution of the worm wheel J1 and tappet M, when the full
part of the latter comes in contact with the projection H as shewn by Fig 4, the
slide E, spindle S, and drill D¹ are actuated, withdrawing the drill from the hole
whether the same be only partly or completely drilled through. If only partly
drilled, when the full part of the projection of tappet M leaves the projection H,
the weighted lever F will again force the drill into the hole; the drill being with-
drawn every time the full part of the tappet M comes in contact with the
projection H, and when the hole is drilled through, the catch N which is attached.
to the slide E by rod N¹, will drop into the recess of cam O which is secured to the
same shaft as lever O', the latter being connected by the regulating rod P to the
long lever R, which is mounted on a stud at R¹.
When the slide E is moved back in the direction of the arrow by the tappet M,
the catch N having dropped into the recess of cam O by reason of the drill having
passed through the hole, the catch N will actuate the long lever R, causing the end

page_text: at R³ to press against the ordinary handle or lever T and thereby move the same
some distance, and turn the screw passing through the longitudinal slide; by which
the saddle is traversed a distance equal to the pitch or distance apart of the holes
to be drilled, whilst the drill D¹ is clear of the faller.
The catch N is liberated from the cam O by the curved rod of the former sliding
up a stud V, thereby causing the catch to rise clear of the cam, which is moved
back to its original position by a spring attached to any convenient part of the
levers O¹ or R, when the operation of boring will be repeated; the drill being
automatically withdrawn once or a number of times for lubricating and cleaning
the cuttings out of the holes.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is
The tappet M and projection H combined with the worm and worm wheel J
and for the purpose of withdrawing the drill from the hole when drilling steel
and iron fallers automatically.
The catch N and cam O combined with the levers 0¹ and R substantially in the
manner and for the purpose described.