Improvements in Hammers, Picks, and similar Tools.
Year: 1894

page_text: Date of Application, 17th Dec., 1894
Complete Specification Left, 16th Sept., 1895-Accepted, 9th Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Hammers, Picks, and similar Tools.
We, IGNAZ SCHLITTNER, Merchant, and Dr. Lazarus Langer, Physician,
both of 9 Ullman Strasse XIV Vienna, Austria, do hereby declare the nature of
this invention to be as follows :-
This invention relates to improvements in hammers, picks, and similar tools of
the kind that are used by certain operatives such as stonemasons, bricklayers,
excavators, millers, wood workers slaters &c. for working hard materials, which
working requires the use of hard, sharp, or serrated tools.
The object of the invention is to render the operative or cutting part of the tool
changeable, so that the bammer or hook shaped tool head always remains intact
as it never requires to be subjected to the action of heat for the purpose of
rehardening the cutting part, this being merely replaced by a new one when
required.
The tool may be variously constructed for the above purpose; thus according to
one arrangement suitable for bricklayers and the like the tool consists of a hammer
head similar to that of an ordinary hammer but the beak end of which is made
shorter than in ordinary hammers, and is formed with a dovetail recess into which
fits the correspondingly dovetailed end of a flat chisel edged cutting blade which is
secured in position by any suitable means such as a screw bolt and nut passing
through both parts.
According to another construction, suitable for removing hard deposits in steam
boilers, the head of the tool is provided on the one side with a projecting boss with
recess adapted to receive a flat cutting blade lying with its cutting edge parallel
with the handle of the tool, while on the opposite side is a similar boss adapted to
receive a flat cutting blade lying with its cutting edge at right angles to the
handle.
The cutting blades are secured by means of screw bolts or otherwise to the
bosses.
According to another modification, suitable for stonemasons, the head of the tool
is formed as a pick, with two opposite extensions, the one end being adapted to
receive a pointed cutting blade, while the other end is adapted to receive a chisel
edged or serrated cutting blade.
Dated this 17th day of December 1894.
ADEL & IMRAI,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Hammers, Picks, and similar Tools.
We, IGNAZ SCHLITTNER, Merchant, and Dr. LAZARUS LANGER, Physician,
both of 9 Ullman Strasse XIV, Vienna, Austria, 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:-
This invention relates to improvements in hammers, picks and similar tools of
Price 1

page_text: the kind that are used by certain operatives such as stone masons, bricklayers,
excavators, millers, wood workers, slaters &c. for working hard materials, which
working requires the use of hard, sharp or serrated tools.
The object of this invention is to render the operative or cutting part of the
tool changeable, so that the hammer or hook shaped tool-head always remains
intact as it never requires to be subjected to the action of heat for the purpose
of rehardening the cutting part, this being merely replaced by a new one when
required.
The accompanying drawing shews by way of example some of the constructions
of the improved tool;
Figs. 1 and 2 shew in elevation, partly in section, and plan a construction suitable
for removing hard deposit from boilers and the like,
Figs. 3 and 4 shew elevation and plan of a bricklayers hammer, and
Fig. 5 shews a stone masons pick.
As shewn on the drawing, each tool consists of the hammer body and the hammer
edge or edges, and the narrow side of the hammer or pick-head, or both the narrow
sides, is or are made shorter than is usual with such tools; the cutting part consists
of a separate steel plate 6 provided with either a sharpened or a serrated edge, and
which is fixed in a detachable manner to the parts a.
The fixing may be effected by any suitable means, preferably such as that shewn
where the part a is provided with a dovetail like recess a¹ (Fig. 2) or a³ (Fig. 4)
either on the under or the upper side or, where the cutting parts lie in the plane
of the stem of the tool, on one of the lateral sides thereof, the slope of the dovetail
being either in the plane of the cutting part or at right angles thereto. In this
recess fits the correspondingly formed inner end of the cutting part 6 either in
the direction parallel to the stem, as at Figs. 1 and 2, or in the direction at right
angles to the stem as at Figs. 3 and 4, being fixed in that position by means of one
or more screws c with nuts c¹.
As the cutting part or parts is or are made of harder metal than the hammer or
pick-head, the hammer or pick can be used for a longer time without having to
change the cutters or points; as furthermore the cutting part can at any time be
rapidly changed if required, the tool is always ready for use.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :-
1. An improved construction of hammer or pick-like tools wherein they are
composed of two or more parts namely a body a, and a cutting part 6 which are
secured together in a readily detachable manner, substantially as described.
2. In the construction of tools referred to in the first claim, connecting the two
parts together by a dovetail-like projection on the one part fitting into a corre-
spondingly formed recess ou the other part and secured together by one or more
screws c, substantially as described.
Dated this 16th day of September 1895.
ABEL & IMRAY,
Agents for the Applicants.