Improvements in Apparatus for use in Breaking up Roads and other Surfaces.
Year: 1899

page_text: Date of Application, 18th Sept., 1899-Accepted, 4th Nov., 1899
COMPLETE SPECIFICATION.
Improvements in Apparatus for use in Breaking up Roads and other
Surfaces.
A communication from HUGO GEBLER, of Radebeul, near Dresden, Saxony,
Engineer.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The present invention relates to an apparatus for mechanically breaking up
roads and other surfaces, the upper hard stratum of the road having cut into
it, in the manner of a plough a furrow or channel, the hard layer being broken
into pieces which afterward can easily be removed by means of shovels.
The apparatus is especially useful where tramways are being built with rails
sunk to the level of the ground of the street or road, and will be found a much
more effective expedient in mechanically cutting up the hard layer of streets
and roads than are the hammer and chisel as at present used by hand.
For this purpose the ploughlike apparatus is preferably attached to a steam-
roller, the latter acting as the motor for drawing the device forward.
The apparatus itself consists of a heavy iron frame carried on two low broad
wheels. On this frame or on its axle is revolvably arranged a guide and tool
holder resting by means of projections or stops, which may be adjustable, against
the sides of the frame. In a recess of this holder a chisel of hard steel or any
other suitable material is inserted together with a back support for the chisel,
being secured in place by keys, wedges, or by screws passing through the front
part of the holder, so as to secure the tool rigidly and firmly. By loosening the
screws or the like the said chisel may be adjusted as to height.
The apparatus is detachably connected with a steam roller or the motor by
inserting an arm or rod, pivotted on a bolt carried on the motor into a corres-
ponding recess in the frame of the apparatus, and securing the connection by a
wedge, pin or the like.
In the accompanying drawing
Figure 1 is a side part sectional view of the apparatus represented as drawn by
a steam-roller of the ordinary and well-known type.
Figure 2 is a plan view of the apparatus, and
Figure 3 a section on the line A-B of Figure 1.
The frame is represented by a while bb indicate the wheels, carried on an
axle c.
Between the wheels and within the frame a is arranged the holder d
loosely mounted on the axle e and carrying a chisel e, together with its support f.
The front of the holder, which rests on the frame a by means of its lateral pro-
jections which can be replaced by adjustable stops or employed in connection
with adjustable stops on the frame a, is provided with screws h for fixing
the chisel in position, although other means for fixing the chisel may be
emploved.

page_text: The apparatus is connected with the steam-roller W by an arm k pivotted on
a bolt on the motor, which arm fits into a recess in the frame a and is fixed
in position by a lateral wedge l.
Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondent and in what manner
the same is to be performed I declare that what I claim is :-
1. Apparatus for use in breaking up roads and other surfaces comprising a
chisel tool adjustably mounted and secured in a holder mounted on a frame pro-
vided with wheels the apparatus being preferably provided with means for regu-
lating the inclination of the tool substantially as described.
2. In apparatus of the kind described means for connecting the apparatus with
a steam-roller or motor comprising a pivotted slotted arm as k, a slotted frame,
and a wedge or pin as 7 substantially as described.
'
3. The complete apparatus for use in breaking up roads and other surfaces
substantially as described or illustrated in the accompanying drawings.
Dated this 18th day of September 1899.
BOULT, WADE, & KILBURN,
Agents for the Applicants.