IMPROVEMENTS IN GAUGING HATCHETS USED IN THE LAYING OF WOOD PAVEMENT
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, GEORGE WALKER, of Whitehall Road, Leeds, in the County of York,
Contractor do hereby declare the nature of said Invention for "IMPROVEMENTS
IN GAUGING HATCHETS USED IN THE LAYING OF WOOD PAVEMENT," to be as
|follows:-
In the laying of wood pavement it is of importance to have the blocks laid with
their upper surfaces perfectly level, or rather to a uniform rounded contour and in
perfectly regular rows. For the latter reason the space between two adjacent rows
should be of uniform width.
Now the object of my Invention is to construct the hatchets used in laying
wood pavements in such a manner that they may be used as gauges by which each
block may be adjusted in position.
The construction of the hatchet is as follows;-The head of the hatchet and the
eye end of the shaft may be of usual construction. To the opposite or free end I
attach the gauge by several small wood screws. The gauge consists of two metal
arms at right angles to each other which may be forged from one piece. One of
the arms is attached to the shaft as mentioned by wood screws. The bottom end
of this arm is turned over the end of the shaft to which it is attached by a screw
and thus forms tho heel of the shaft or hatchet handle.
The arm which stands out at right angles to the shaft is provided near its freo
end with a set screw and a sliding piece. This latter can be fixed by the set screw
so as to project any desired distance beyond the end of the arm. The distanco
from the heel of the shaft to the projecting arm is made equal to the depth of the
wood blocks forming the pavement, so that by placing the heel of the hatchet on
the top of the foundation for the block it can be readily ascertained before placing
the block in position whether the surface of the foundation requires raising or
otherwise.
The end portion of the shaft is cut away at the front where the vertical arın of
the gauge is attached; the thickness of this portion of the shaft including the
metal arm is mado equal to the space between two adjacent rows of blocks for
which it thus serves as a gauge.

page_text: COMPLETE SPECIFICATION.
12
I, GEORGE WALKER of Whitehall Road, Leeds, in the County of York Con-
tractor do hereby declare the nature of said Invention for "IMPROVEMENTS IN
GAUGING HATCHETS USED IN THE LAYING OF WOOD PAVEMENT and in what
manner the same is to be performed to be particularly described, and ascertained
in and by the following statement:—
In the laying of wood pavement it is of importance to have the blocks laid with
their upper surfaces perfectly level, or rather to a uniform rounded contour and in
perfectly regular rows. For the latter reason the space between the adjacent rows
should be of uniform width.
Now the object of my Invention is to construct the hatchets used in laying wood
pavements in such a manner that they may be used as gauges by which each block
may be adjusted in position.
The construction of the hatchet is as follows:-The head of the hatchet and the
eye end of the shaft may be of usual construction. To the opposite or free end I
attach the gauge by several small wood scrs. The gauge consists of two metal
arms at right angles to each other which may be forged from one piece. One of
the arms is attached to the shaft as mentioned by wood screws. The bottom end
of this arm is turned over the end of the shaft to which it is attached by a screw
and thus forms the heel of the shaft or hatchet handle.
The arm which stands out at right angles to the shaft is provided near its free
end with a set screw and a sliding piece. This latter can be fixed by the set scrow
Bo as to project any desired distance beyond the end of the arm. The distance
from the heel of the shaft to the projecting arm is made equal to the depth of the
wood blocks forming the pavement, so that by placing the heel of the hatchet on
the top of the foundation for the block it can be readily ascertained before placing
the block in position whether the surface of the foundation requires raising or
otherwise.
The end portion of the shaft is cut away at the front where the vertical arm is
attached the thickness of this portion of the shaft including the metal arm is
made equal to the space between two adjacent rows of blocks for which it sorves
as a gauge.
And in order that my Invention may be more completely understood reference is
given to the accompanying drawings and to the letters and marks thereon.
DESCRIPTION OF DRAWINGS.
Fig 1 is a side elevation of gauging hatchet. Fig 2 back elevation. Fig 3 an
end elevation.
The head a of the hatchet and the eye end b of the shaft c are of ordinary
construction. To the opposite or free end of the hatchet I attach a gauge by small

page_text: each other which may be forged in one piece. One of the arms & is attached to the
shaft c by means of the screws f, this arm d is turned over the end of the shaft c
as shewn and thus forms the heel of such hatchet. The arm e at right angles to
the shaft c is provided with a sliding piece g which may be of the angular form
shewn in the drawings. The adjusting screw h has its bearing in a projecting
bracket i attached to the sliding piece g and passing through a slot hole in the
arm e.
This set screw h engages into a nut j let into the handle or shaft c. By turning
the screw the angular sliding piece 7 can be brought in close contact with the
arm d or withdrawn a suitable distance therefrom. By this arrangement not
only can it be ascertained before placing the block in position whether the
surface of the foundation requires raising or otherwise but also the distance
between the blocks can be gauged, thus the blocks can be laid with a perfect
evenness of surface and also at an equal distance apart with great accuracy.
The end portion of the shaft c is cut away where the arm is attached and the
thickness of this portion along with the sliding piece g is made equal to the space
required between the rows of blocks by the adjustment of the herein before
mentioned set screw h.
A rule or scale may be attached to the handle or shaft c for measuring or gauging
the sizes of blocks.
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
The arrangement of gauging hatchets whereby the height of the paving blocks
can be gauged, also the distance between them can be regulated, substantially as
and for purposes herein set forth.
DAL! m
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