An Improved Wood-boring Machine or Tool.
Year: 1893

page_text: COMPLETE SPECIFICATION.
An Improved Wood-boring Machine or Tool.
I, WILLIAM ROBERT WEBB, of 12, Shaftesbury Road, Hornsey Rise, in the
County of London, Electrician, 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 :-
My invention relates to a wood-boring machine or tool designed for making holes
in floor joists and the like for running electric wires, gas pipes and the like without
rendering it necessary to cut the joists as is now the general practice, thereby
weakening the same.
In carrying out my invention I provide a foot-piece or girder adapted to rest on
the joists and carrying a frame in which the boring-bit is mounted parallel with
the foot-piece, the said boring-bit having upon it a bevel pinion with which a bevel
wheel carried by the said frame and by the foot-piece or girder engages, (the said
wheels being of any suitable diameters according to the speed required for the
boring bit) a handle for operating the bit being secured to the said bevel wheel.
To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawing, in which :-
Figure 1 is a sectional elevation of my improved boring machine or tool:
Figure 2 is an end elevation of the same:
Figure 3 is a perspective view shewing how the tool is applied.
a is the foot-piece or girder which is adapted to rest upon two joists b, b which
in Figure 1 are indicated by dotted lines. c is the frame fixed to the said foot-
piece a, and d is the boring-bit which is carried in a bearing in the said frame.
is the bevel pinion secured to the inner of the said boring-bit, and g the bevel
wheel engaging with the said pinion, the said wheel having a central pin / at its
lower end entering a corresponding bearing in the frame c and having its boss i
working in a bearing in the foot-piece a.
jis the operating handle which at one end enters a hole in the boss of the wheel g
and is secured therein by means of a thumb-screw k.
In using my improved machine the foot-piece is placed upon the top of two
joists with the point of the boring-bit against the side of the joist to be bored and
then by rotating the handle j motion will be imparted to the boring-bit d, the foot-
piece a sliding on the joists as the boring proceeds.
If, when in boring several joists, the foot-piece a is kept in contact with one edge
of the flooring boards, as shewn in Figure 3, it will be obvious that all the holes
bored will be in alignment.
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 :-
1. A machine for boring floor joists and the like, the said machine being provided
with a foot-piece or girder carrying a frame in which the boring-bit is mounted
and to which motion is imparted through suitable gearing also carried in the said
frame, substantially as described.
2. The manufacture and use of the improved boring machine hereinbefore
described and illustrated in the accompanying drawing.
Dated the 18th day of August 1893.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.