A New or Improved Machine for Breaking or Scarifying Macadamized and other Roads.
Year: 1894

page_text: Date of Application, 11th June, 1894
Complete Specification Left, 11th Apr., 1895-Accepted, 24th May, 1895
PROVISIONAL SPECIFICATION.
A New or Improved Machine for Breaking or Scarifying
Macadamized and other Roads.
ORIEL VIVEASH Northleach Gloucestershire Road Surveyor do hereby declare
the nature of this invention to be as follows:-
A row of pick-axes, each consisting of a steel shaft, a steel pick fastened to it
by a nut about six inches from one end and the other end of the shaft fastened to
the front bar of an iron frame, the picks to be raised alternately by the end of the
pick-shafts being caught up by iron points projecting from a revolving cylinder,
when the picks are released they will be forced to the ground by springs, the
cylinder to be driven by chain-gear from one or both sides of a steam-roller or
traction engine; the frame to be hauled and the picks work underneath or behind
a steam-roller or traction engine.
Dated this 9th day of June 1894
ORIEL VIVEASH.
A New or Improved Machine for Breaking or Scarifying
Macadamized and other Roads.
I, ORIEL VIVEASH of Northleach, Gloucestershire, Road Surveyor, do hereby
declare the nature of this invention and in what mauner the same is to be
performed to be particularly described and ascertained in and by the following
statement:—
This invention refers to a machine for breaking or scarifying macadamized and
other roads, such machine being provided with a row of pick-axes each consisting
of a shaft or bar provided near one end with a pick, the pick-bar being located
upon a front bar or shaft carried by the framework. The picks are alternately
raised by the ends of the pick-bars being caught up by points or teeth projecting
from a revolving cylinder; when the picks are released they will be forced to the
ground by springs. The cylinder is revolved by suitable gearing and the machine
is hauled and motion communicated to the picks by means of a steam roller or
traction engine all as hereafter described.
Referring to the drawings accompanying this Specification I have there shown
an example of a machine according to my invention, Fig. 1 being a plan view, and
Fig. 2 a sectional elevation, the letters of reference marked thereon and hereafter
referred to, indicating like parts in both figures of the drawings.
A is the framework of the machine, B is the main shaft supported in bearings
on the framework across which it extends, being provided with lateral carrying
road wheels B' B¹ fixed to the said shaft B. The shaft B carries upon a loose
sleeve C thereon, the revolving cylinder having projecting points or teeth, the said
cylinder being represented by the separate discs D D¹ D which are keyed to the
sleeve and each provided with a suitable number of teeth D³. The toothed discs
are driven through gearing by a traction engine or steam roller, to which the
frame A is attached by a suitable coupling bar such as by the bar E. Onto the

page_text: road wheel shaft B is fixed a chain wheel F connected by a chain with a chain
wheel G keyed on a transverse counter shaft G¹ free to revolve in bearings on the
framework A, the said shaft G1 being provided with an attached spur wheel H
gearing with a spur wheel H¹ keyed onto the loose sleeve C which carries the
toothed discs D and whereby the latter are revolved upon and by the traction
engine or the like hauling the scarifier.
JJ are the pick-bars or carriers, being mounted at one end on a front bar or
shaft K carried from the framework A while the opposite ends are calculated to be
caught up by the points or teeth of the discs D etcetera. J' are the picks which
may, as shown, be shouldered into the carrying bars J and held in place by
taper wedges and set pins or by nuts as desired, and I sometimes provide the
picks with removable steel points J*. The pick carriers J J etcetera are separated
and guided by the vertical bars L supported from the framework by a frame L'.
It will be understood that. any number of such toothed discs D D₁ etcetera may
be employed arranged side by side according to the number of rows of picks to
be operated and the teeth thereon should be properly spaced circumferentially
according to the relative order it is desired the picks should be operated and to
allow proper time for the picks to fall and act upon the road; I have found it
generally preferable that the picks should be raised alternately. The picks need
not necessarily be arranged at the front end of the apparatus but may if desired
be carried at the rear end thereof, or picks may be provided at both ends; in the
drawing I have illustrated the picks at both ends of the apparatus, the arrange-
ment being similar to those described at the front end, except that the teeth act
upon the tail ends of the carriers J. M are springs for forcing the picks to the
ground although I may substitute weights M¹ for this purpose.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
.
1. In a road scarifier or road pick, a series of horizontally arranged bars J mounted
to oscillate radially on a transverse shaft K and carrying picks extending at or
about right angles to the bars, in combination with a revolving toothed cylinder or
discs D etcetera; the teeth acting on the bars J to raise the picks, which latter
when released fall and act upon the road (accelerated by springs or weights)
together with means for cominunicating rotary motion to the cylinder or discs D
etcetera, the machine being drawn by a traction engine or the like all substantially
as and for the purposes set forth.
2. In a road scarifier drawn by a traction engine or the like, the combination
with the horizontally arranged pick carrying bars J, their carrying shafts, a
revolving toothed cylinder or discs to act on the pick bars and raise and let fall
the picks in a radial manner as claimed by Claim 1, of the laterally arranged
carrying road wheels B₁ B' on revolving shaft B, the gearing thereon giving
motion to the counter shaft G₁, the loose sleeve C on the shaft B to carry the
toothed cylinder or discs, and the gearing to revolve the loose sleeve C from the
counter shaft G¹ all substantially as and for the purposes herein before described.
3. The general arrangement and combination of parts composing my improved
road scarifier adapted to be drawn by a traction engine or the like and having a
revolving toothed or discs lifting horizontally arranged sets of radial pick carrying
bars and allowing the latter to fall for the picks carried thereby to act on the road,
all constructed and acting substantially as and for the purposes described and
illustrated with reference to the accompanying drawings.
Dated this 11th dar of Anril 1905
BREWER & SON,
London aud Leeds, Agents for Applicant.