Improvements in Fixing the Working Points or Ends of Picks, Drills, and similar Tools.
Year: 1896

page_text: Date of Application, 9th Mar., 1890
Complete Specification Left, 30th Nov., 1996-Accepted, 9th Jan., 1897
Date of Application, 9th Mar, 1090
Complete Specification Left, 30th Nov., 1996-Accepted, 9th Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements in Fixing the Working Points or Ends of Picks,
Drills, and similar Tools.
JOHN BARLOW 105, Annesley Street Kirkwhite Street Nottingham Mechanic
do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved method of fixing the working points or ends
of picks drills and similar tools.
According to my invention, I make a hole or groove or part hole and part
groove from the outer end or froin where the working point or end of picks drills
and similar tools is fixed, to near the eye, or shaft place, if its a pick, or through
into the eye, or shaft place, if its a pick. The hole or groove or part hole and part
groove may be made a suitable length, in the picks drills and similar tools, or
through same, or in some cases, there may be a hole and cone, or more groove or
grooves or a hole and a slot-bole, which passes through the faces of the picks,
drills and similar tools. The working points or ends of picks, drills and similar
tools, I make with a part projecting behind a suitable length, so as to fit in the hole
of the picks drills and similar tools. The part which projects, inwards or fits in
the hole, is tapered off, on one face prefered so that a spindle or wedge or cotter,
which is also tapered off to match the inward part, of the working points or ends of
picks, drills and similar tools, which is placed lengthways in the hole, or in the hole
and groove or grooves of the picks, drills and similar tools, is allowed, to slide or
be forced, on to the inward part, of the working points or ends of picks drills and
similar tools. The inward part of the working points or ends of picks, drills and
similar tools, may be made with a projection or projections on, or without, but a
projection or projections prefered. The inward part of the working points or ends
of picks, drills and similar tools, when a projection or projections, is on the inward
part, of the working point or end of picks drills and similar tools, it forms an angle,
but may be made other suitable ways, but an angle shape prefered.
When two projections are is oposite each other on the inward part of the
way,
working points or ends of picks drills and similar tools, it is split in a suitable
so as to allow it to be sprung open by the spindle or wedge or cotter. The inward
part of the working points or ends of picks drills and similar tools may be split and
no projections on but projections on prefered. There is a place or places made for
the projection or projections to fit in or to be sprung or forced into when the
spindle or wedge or cotter forces them outwards thereby locking the working
points or ends of picks drills and similar tools, firm in position. There may be one
or more spindles or wedges or cotters and places made to match same but only one
spindle or wedge or cotter prefered. The spindle or wedge or cotter which passes
along or through the hole, or through part hole and part groove or grooves of the
frame of picks drills and similar tools, has a thread on to receive a nut, the thread
is on the oposite end to where, the working points or ends of picks drills and
similar tools is fixed, the threads are made a suitable length on the spindle or
wedge or cotter, but it may be without a nut and threads on, but nut and threads
on prefered.
The nut has a recess or place made to receive it where the hole or groove
or grooves ends, so that it may go under cover or level to the outer face where the

page_text: hole or groove or grooves ends, but it may be other suitable ways. The nut is for
preventing the spindle or wedge or cotter, from going or feeding any further after
its driven home or wedged tight enough, and for preventing the spindle or wedge
or cotter, with the nut on from working loose or coming out, I check it by having
an article to slide or be fixed over it or against it. If its a pick with an eye in it,
it may be prevented from working loose or coming out by the pick shaft or handle
being driven home or tight in the eye of the pick, or the spindle or wedge or cotter
may be held in position, when driven home or tight enough by other suitable
means. The working points or ends of picks, drills and similar tools, may be held
in position without a spindle or wedge or cotter in other suitable ways by a set
screw or screws passing through one or more faces of the picks drills and similar
tools, on to the inward part of the working points or ends of picks drills and
similar tools, but spindle or wedge or cotter prefered. The working points or ends
of picks drills and similar tools, may have shoulders or a flange to rest against the
face or otherwise, and the shoulders or flange may have a projection or projections
on and a recess or place or recesses or places for the projection or projections
to rest in or other suitable ways. The outer face where the working points or ends
of picks drills and similar tools, is fixed, may have a projection or projections or
otherwise, in any case one is made to match the other, by having a projection and
recess or projections and recesses fitting in one another, prevents the working points
or ends of picks drills and similar tools, from ever being twisted off. The working
points or ends of picks drills and similar tools, may have that part by which it is
fastened of any suitable shape and the place where it fits to match same. The
spindle or wedge or cotter may be made any suitable length or any suitable shape
and place or places to match same.
Dated 7th March 1900
COMPLETE SPECIFICATION.
Improvements in Fixing the Working Points or Ends of Picks,
Drills, and similar Tools.
I, JOHN BARLOW, 105 Annesley Street, Kirkewhite Street, Nottingham,
Mechanic, 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, reference being had to the accompanying drawings and to
the letters and figures marked thereon, that is to say :-
My invention relates to improvements in picks, drills, and similar tools, and has
reference more particularly to an improved method of fixing removable working
points or ends of such tools.
According to my invention, the said points or ends are provided with wedge-
shaped shanks fitting into, and adapted to engage in sockets in the ends of the pick,
or like tool, and to be secured in position by locking rods or bare, each having a
tapered or wedge-shaped end fitting against the wedge shaped shanks. Said
locking rods or bars extend into the eye or hole for the shaft or handle, where
they may be each provided with an adjusting nut against which the shaft or
handle abuts, and prevents any movement of the said rods or bars; but the rods
or bars may be secured in any other convenient manner, although nuts are
preferred.
To prevent lateral, twisting, or other movement of the points or ends, the shanks
thereof are provided with one or more projections adapted to be forced by the
tapered or wedge shaped ends of the locking rods or bars into corresponding holes,
notches, or slots, in the sockets.

page_text: order that my v Gou may b
same fully with reference to the accompanying drawings, in which :-
Fig. 1 is a section of a navvy's pick constructed according to my invention, one-
of the points being removed.
Fig. 2 is a perspective view of one of the removable working points, drawn to.
an enlarged scale.
Fig. 3 is a detached view of one of the locking rods or bars for securing the
points in position.
Fig. 4 is a section showing a modification of my invention applied to a navvy's.
pick, and
Fig. 5 is a transverse section of the same on the line, x, of Fig. 4.
Fig. 6 is a longitudinal section showing a drill with my invention applied
thereto;
Fig. 7 is a part plan of the same.
Fig. 8 shows one application of my invention to a miner's pick.
Throughout the drawings, like letters of reference indicate similar parts.
a is the working point (which varies in size and shape in different tools), and'
b is the shank thereof, which has one of its sides or faces, viz. c, inclined, and.
terminates in a heel or projection d extending at right angles from the other side...
On one or more sides of the base of the working point, is a projection d'. e is the
socket in the pick in which the shank is inserted, and is held in engagement
therein by the projection d which drops or fits into a hole f near the end of the
pick, and by the projection (or projections) d' entering a notch or recess (or
notches or recesses) in the end of the said socket. The thickness of the shank.
through the heel part is preferably equal to that at its base or root, so that the
said heel may be as large as possible consistent with the shank entering the
socket e, thus ensuring a firmer hold.
h are the locking rods, each of which extends through a passage i in the pick,.
and is pressed forward from the eyej so that its inclined or tapered end k jams or
wedges against the surface c of the shank b. The eye end of each rod is screw
threaded, and provided with a nut / having a sawgate, or its equivalent, for enabling
it to be turned on the said threaded end to give the necessary adjustment in length.
to ensure proper fit of the parts. The nut enters a recess provided for it in the
eye of the pick, and, when the shaft or handle m is inserted in the eye, forms an
abutment therefor, whereby the various parts are held firmly in position, and also
serves as a stop and prevents risk of breaking the pick by reason of the locking rod
being forced too far forward.
The firmness of the point is further ensured by the use of the projections d',.
although I may, in some cases, dispense with them.
In the modification shown in Fig. 4, 1 provide, instead of the passage i, a groove
or channel n in the under or inner side of the prong or blade of the pick to receive-
the rod which, in this case, is conveniently of square section, although it may be
round, angular, or of any other suitable section. This rod is secured in position in
a manner similar to that herein before described, the nuts l, which may be flanged,.
being advantageously fitted in recesses in the eye of the pick.
lo the application of my invention to drills and like tools (as in Figs. 6 and 7).
in which there is a twisting strain, and leverage in various directions, the shank
of the working point is split or divided, as shown, and being forced through the
socket e, the projections or heels d take into the holes f, the split shank 6 being-
further spread apart and secured or locked in place by the tapered end of the
rod h. A cap o secures the rod h in place, so holding the various parts firmly in.
position, and also serves to receive the blows from the hammer, or mallet, used in
driving the drill.
In applying the invention to a miner's pick, or like tool, as in Fig. 8, the nuts l
are each provided with a shoulder, or are otherwise formed so as to permit of the
insertion between them of any suitable device, such as a removable coiled (or-

page_text: other) spring p, to prevent them working loose. The split shank shown in Fig. 6
may also be applied to miner's picks, and the like, if desired.
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. A pick, drill, or like tool, having a removable working point or end, the
shank of which enters a socket in the end of the tool and is provided with
projections engaging holes and notches in the tool, the shank having also an
inclined surface, or a split or division, acted upon by the tapered end of a locking
rod kept in position by suitable means, situated in the eye of the pick, or at the
rear end of the drill, as the case may be, substantially as described.
2. A pick, drill, or like tool, of the kind referred to in the preceding claim, in
which the locking rod, or each locking rod, is provided with an adjusting nut upon
the extremity thereof opposite to the working point, substantially as and for the
purpose described.
3. A removable working point or end for picks, drills, and like tools, having one
side of its shank inclined (to receive the thrust of a locking rod) and terminating
at its rear end in a heel or projection on the other side, with or without a pro-
jection, or projections, at the base of the point, substantially as described and
shown.
4. The improved navvy's pick constructed substantially as described with
reference to Figs. 1, 2, and 3, or modified as described with reference to Figs. 4
and 5 of the accompanying drawings.
5. The improved drill constructed substantially as described with reference to
Figs. 6 and 7 of the accompanying drawings.
6. The improved miner's pick, constructed substantially as hereinbefore described
with reference to Fig. 8 of the accompanying drawings.
7. My improvements in fixing the working points or ends of picks, drills, and
similar tools, substantially as hereinbefore described with reference to the
accompanying drawings.
D
Nanambon 1906