Year: 1889

page_text: A communication from ALBERT HARTMANN, of Lucka, in the Empire of Germany,
Master Saddler.
I, ALFRED JULIUS BOULT of 323 High Holborn, in the County of Middlesex,
M.I.M.E., 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 :-
With awls or other tool bits fitted into ordinary handles it has been found that when
the said awls or bits break the handles have been practically useless, as the part of the
awl remaining in the handle can only be removed with great difficulty or in such a
manner that a new awl cannot be fitted into the handle. The object of the present
invention is to design an awl handle which avoids these disadvantages.
In figure 1 to 7 of the accompanying drawings two modifications of such an awl
handle are represented.
The handle A figure 1 is hollow and consists of two parts a and b formed each
with a semi-circular recess d' which when the two parts a 6 are placed together
form an interior annular projection which together with a feather c of the part b
serves to hold the head of the awl. The two parts a bare held or fastened together
by means of a conical screw nut f and are formed with screw threads at their
front end for this purpose, and by means of the spring hook g fastened to the rear
end of part a corresponding opening for the free end of the spring hook g being
formed in the part a of the handle. The awls used for these handles are each provided
with a conical head / formed with a groove k into which fits the feather c of the part 6
(see figure 3) and prevents the awl from turning independently of the handle while
the head thereof bears against the inner projection d which prevents it from passing
furthur into the handle. The head of the awl is furthur tightly held between the
parts a and b of the handle by the screw nut f.
Instead of forming the head with a groove k (figure 4) it may be simply
formed flat on one side (Fig. 6) and a corresponding piece fastened to the part b
instead of the feather c.

page_text: Figs. 8 and 9 represent a modified form of handle in which the two parts a and b
thereof are solid and held together at the back by two clamps or clips m m¹ which
engage with each other and in front by the conical clamp ring or ferrule O. With
this form the ordinary form of awl can be used i.e. awls without the head h.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent I declare that what I claim is :-
1. A hollow tool handle consisting of two parts such as a and b secured together
by a spring fastening such as g and screw ferrule f in combination with an awl or
bit having a head such as h with groove k secured by the said screw ferrule f
inner annular projection d and feather c substantially as described and illustrated
in the accompanying drawings.
2. A solid tool handle consisting of two parts such as a and b fastened together
by clamps or clips such as m m² and ferrule O substantially as described and
illustrated in the accompanying drawings.
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