Year: 1899

page_text: I, JOHN ARTHUR SANER, of Highfield, Northwich, in the County of Chester,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to means for fastening and holding parts of
machinery, as tor instance for coupling and uncoupling parts of machinery, such
as the couplings of dynamo armature shafts to direct driving engines, and the
like; and also for holding down bolt fastenings for bed-plates, &c., where
latitude is required for adjustment.
According to this invention, the bolt shank connecting the one part to the
other is eccentric, that is there is a definite eccentricity between the centre line
of-the threaded part of the bolt and its shaft or shank; and this shaft or shank
is preferably tapered. This bolt, that is the conical shaft or part of it, fits
within a bush or sleeve, the hole through which is also eccentric to its exterior
surface, which fits in one part of the machinery being fastened or coupled, as
a bed plate or coupling. Hence, in use, by turning these eccentric parts round,
the centre line of the bolt may be adjusted and varied in any direction within
a circle whose diameter is equal to twice the eccentricity of the bolt shank and
the eccentric sleeve. This sleeve or bush is also, in one construction, tapered
conically, fitting into a corresponding hole in the bed plate or coupling, and
the sleeve having a head outside by which it can be manipulated. In
a modified construction, however, the bolt shank and the bush will be cylindrical
in which case the bolt is provided with a suitable head.
By the construction as described, either for coupling or interchangeable
machinery which has to be connected up and taken apart periodically, or for
holding down or coupling where certain latitude is required for adjustment in
the first instance, the invention can be applied with advantage.
Do th th day of Tn 1000
I, JOHN ARTHUR SANER, of Highfield, Northwich, in the County of Chester,
Engineer, 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 has reference to means for fastening and holding parts of

page_text: machinery, as for instance for coupling and uncoupling parts of machinery, such
as the couplings of dynamo armature shafts to direct driving engines, and the
like; and also for holding down bolt fastenings for bed-plates, &c., where
latitude is required for adjustment.
According to this invention, the bolt shank connecting the one part to the
other is eccentric, that is there is a definite eccentricity between the centre line
of the threaded part of the bolt and its shaft or shank; and this shaft or shank
is preferably tapered. This bolt, that is the conical shaft or part of it, fits
within a bush or sleeve, the hole through which is also eccentric to its exterior
surface, which fits in one part of the machinery being fastened or coupled, as
a bed plate or coupling. Hence, in use, by turning these eccentric parts round,
the centre line of the bolt may be adjusted and varied in any direction within
a circle whose diameter is equal to twice the eccentricity of the bolt shank and
the eccentric sleeve. This sleeve or bush is also, in one construction, tapered
conically, fitting into a corresponding hole in the bed plate or coupling, and
the sleeve having a head outside, by which it can be manipulated. The
invention, the nature of which is above described, is illustrated in the
accompanying drawings, in which Figure 1 is a longitudinal section of the device;
Figure 2 is a cross section at A, A Figure 1; Figure 3 is a cross section at B, B,
Figure 1 and Figure 4 a view of the larger end.
Referring now to these drawing, a and b are the two parts of the machinery
which it is desired to couple or fasten. c is the fastening bolt proper, one
end, c, of which passes through and fills a hole in the part b, and is secured by
a nut d; whilst the body is eccentric to the axis of the part cl, and tapers out
in increasing diameter from the part c¹ outwards. As shewn in the drawings,
the eccentric body is also larger in diameter than the part o².
The bush or sleeve in which the body of the bolt c fits is designated e, and
the core of this sleeve is eccentric to its exterior surface. This part e fits in a
tapered hole in the coupling or part a, and constitutes an eccentric bush between
the bolt body and the part a.
The bolt c, and the sleeve or bush e, are, on their outside, formed with flat
parts as shewn, to enable them to be grasped and operated by spanners, or like
tools.
It will now be plain, that if the eccentric parts, namely, the body c and the
sleeve or bush e, be turned about their axes, the centre line of the bolt body may
be shifted or adjusted in any direction within a circle, whose diameter is equal
to twice the eccentricity of the bolt shank and eccentric sleeve.
In a modified construction, the bolt shank and the bush will be cylindrical, in
which case the bolt will be provided with a suitable head.
By the construction as described, either for coupling or interchangeable
machinery which has to be connected up and taken apart periodically, or for
holding down or coupling where certain latitude is required for adjustment in
the first instance, the invention can be applied with advantage.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. An improved bolt fastening device, comprising a bolt having parts at its
opposite ends eccentric to each other, and a sleeve or bush around said bolt,
and fitting in a hole in one of the parts to be fastened or coupled; substantially
as and for the purposes set forth.
2. An improved bolt fastening device, comprising a tapered bolt c; an eccentric
sleeve or bush e fitting over c and adapted to fit in one part to be fastened or
coupled; and a part of the bolt c, adapted to fit in the other part (b) to be
fastened or coupled, eccentric to the body of the bolt; substantially as and for
the purposes set forth.

page_text: 3. The bolt fastening device consisting of the parts constructed, arranged and
adapted to operate particularly as shewn in and set forth with reference to the
drawing.
Dated this 5th day of March 1900
CHEESBROUGH & ROYSTON,
Applicant's Patent Agents, 15, Water Street, Liverpool.