Year: 1887

page_text: Date of Application, 15th Apr., 1887
Complete Left, 5th Dec., 1887
Complete Accepted, 6th Jan., 1888
hereby declare the nature of this invention to be as follows:-
This invention relates to apparatus for facilitating and ensuring the accurate
alignment of Shaft Bearings.
The said apparatus placed in a bearing enables the operator to sight through the
true axis of the same on to a centre placed in another Bearing with which the former
is to be aligned and thus determine the proper alignment of the Bearing in which the
apparatus is placed.
Figure 1 is a longitudinal view of the apparatus which consists of a tube a on which
the collars bb slide freely; these are made to suit various diameters of Bearings.
The collars are slid into the Bearings from each side; the tube is then held central.
Figures 2 and 3 are end views showing the sight hole x at one end and the cross
wires at the other end.
Figure 4 is a longitudinal view of another form of the apparatus which consists of
a tube a on which are mounted four parallel bars bb connected by cross links cc,
similar to parallel rulers. The instrument is inserted loosely into a Bearing and the
parallel bars are expanded to fit the Bearing in both directions; the tube will then be
held central as in the instrument fitted with collars.
Figures 5 and 6 are end views showing the sight hole x and the cross wires y.

page_text: I, EDWIN STINTON, Engineer of Bishop's Hill, Ipswich in the county of Suffolk
do hereby declare the nature of my invention for AN APPARATUS FOR THE ALIGNMENT
OF SHAFT BEARINGS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This invention relates to apparatus for facilitating and ensuring the accurate
alignment of Shaft bearings.
The said apparatus placed in a bearing enables the operator to sight through the
true axis of the same on to a centre placed in another bearing with which the former
is to be aligned, and thus determine the proper alignment of the bearing in which the
apparatus is placed.
In the drawings left with my provisional specification, Figure 1 is a longitudinal
view of the apparatus which consists of a tube a on which the collars bb slide freely;
these are made to suit various diameters of bearings. The collars are slid into the
bearings from each side; the tube is then held central. Figures and 3 are end
views showing the sight hole x at one end and the cross wires y at the other end.
Figure 4 is a longitudinal view of another form of the apparatus, which consists of
a tube a on which are mounted four parallel bars bb connected by cross links cc,
similar to parallel rulers. The instrument is inserted loosely into a bearing, and the
parallel bars are expanded to fit the bearing in both directions; the tube will then be
held central as in the instrument fitted with collars.
Figures 5 and 6 are end views showing the sight hole x and the cross wires y.
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 :—
An apparatus which being inserted into a bearing will show by a sight hole at one
end and cross wires at the other the true alignment of Shaft bearings, substantially as
herein described, and shown in the drawings left with my provisional specification.
Dated this 3rd day of December 1887.