Improvements in Supports and Bearings for Revolving Shafts.
Year: 1891

page_text: Date of Application, 22nd July, 1891
Complete Specification Left, 22nd Apr., 1892-Accepted. 28th May 1802
PROVISIONAL SPECIFICATION.
Improvements in Supports and Bearings for Revolving Shafts.
I WILLIAM HENRY DORMAN of The Hawthorns Newport Road Stafford,
Engincer do hereby declare the nature of this invention to be as follows:-
My invention consists in so constructing the supports and bearings for carrying
revolving shafts that they may be readily adjusted to a straight line and to some
degree will adjust themselves to slight irregularities. I accomplish this by carrying
the sockets or bearings, in which the shaft works, on centres, which are carried in
gymbal rings. The gymbal rings being mounted again on centres at right angles,
to those just named. The centres that carry the gymbal rings are carried on a
bracket, that is readily adjustable on the support or hanger which is attached to
the building, or other structure on which the shafting is fixed. Movement of the
bracket affords adjustment in one direction, and regulation of the centres in the
gymbal rings affords adjustment in a direction at right angles; while the free
hanging of the shaft bearings allows them to adjust themselves to slight irregularities
of alignment. 1 also, if further adjustment is desired, mount the gymbal bracket,
on another bracket, by means of which a greater range of adjustment is obtainable,
than the gymbal centres will give.
Dated this 21st do
1001
W. H. DORMAN.
COMPLETE SPECIFICATION.
Improvements in Supports and Bearings for Revolving Shafts.
I WILLIAM HENRY DORMAN, of The Hawthorns, Newport Road, Stafford, in
the County of Stafford, 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 :—
My invention consists in so constructing the supports and bearings for carrying
revolving shafts that they may be readily adjusted to a straight line and to some
degree will adjust themselves to slight irregularities or deviations from accuracy in
the shafts.
I accomplish this by carrying the sockets or bearings, in which the shaft works,
on centres which are carried in gymbal rings. The gymbal rings are mounted
again on centres at right angles to those carrying the sockets or bearings.
The centres which carry the gymbal ring are carried in a bracket which is readily
adjustable on the support or hanger which is attached to the building or other
structure on which the shafting is fixed.
Movement of the brackets affords adjustment in one direction and regulation of
the centres in the gymbal rings affords adjustment in a direction at right angles
while the free hanging of the shaft bearings allows them to adjust themselves to
slight inaccuracies in the shaft.
I also if further adjustment is desired, mount the gymbal bracket on another
bracket by means of which a greater range of adjustment is obtainable that the
gymbal centres will give.
The accompanying drawings illustrate my invention.
Figs. 1 and 2 are views showing my improved bearing and support.
Figs. 3 and 4 are views shewing a modified construction.
Figs. 5, 6, and 7 shew another construction, with a wall box.
Figs. 8 and 9 shew another construction, with a hanger and
Fig. 10 shews a bancos with the
1

page_text: Figs. 11 and 12 shew yet another method with a wall bracket.
Figs. 13 and 14 shew a wall plate and
Figs. 15 and 16 a sole plate which may be used for carrying my improved
bearing.
A. Figs. 1 and 2 is the socket or bearing in which the shaft revolves. B. B¹ are
centre ended screws which carry the bearing A and may be adjusted up and
down in the gymbal ring C and when set are held fast by jam nuts D. D¹. The
gymbal ring C. is carried on centre ended screws F. F' which are adjustable in
the bracket G. and are likewise held fast by jam nuts H. H'. The bracket G. is
carried on the sole plate I. in which is a slot to receive the screw or bolt J. and
also two lugs or projections K. K', which are formed on the bracket G. The sole
plate I. may be made fast to a beam L. or other part of a structure by means of
bolts or screws M. M.
In the modified construction shewn in Figs. 3 and 4 the bearing is divided in
halves A' A' for greater convenience of putting together.
The gymbal ring C¹ has an opening g. sufficiently large to pass the shaft and is
provided with a movable piece or cap N. secured by bolts or screws O. O¹. The
centre ended screws B. B₁ and F. F are used as before and the bracket. G' is
made in one with the sole plate and in the modification shewn in Figs. 5 6 and 7
the сар N' has its ends n. n adapted to engage with hooks or ears n¹ n' formed on
the piece C². The ears n' n³ are divided as shewn in the plan Fig. 7 and the
middle ribs n 2 entering the opening n³ prevent lateral movement of the cap N¹.
The shelf P. in the wall box P' is slotted at to allow of adjustment sidewise.
In the construction shewn in Figs. 8 and 9, 10, 11 and 12 the ring C³ has an
opening c sufficiently large to pass the shaft and is made of sufficient strength so as
not to require a cap. The bracket G2 in Figs. 8 and 9 is carried by the hanger Q
in which is a vertical slot q to receive the bolt q' and projections 7 which are
formed on the bracket G³. This slot q allows of adjustment of the bracket G³ in a
vertical direction. In Fig. 10 an additional bracket Q' is provided which has a
horizontal slot g² and allows of a greater amount of horizontal adjustment being
given to the bearing than can be given by the screws F. F' alone. In the wall
bracket R Figs. 11 and 12 the slot g₁ is horizontal and allows of adjustment of the
bracket G nearer to or further from the wall at c.
The wall plate S. Figs. 13 and 14 or the sole plate T. Figs. 15 and 16 may be
used instead of the wall box or wall bracket shewn in Figs. 5, 6, 11 and 12 or other
convenient fixings may be employed to carry the bearings should special circum-
stances so require.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
The construction of bearings for revolving shafts carried on two centres or pivots
mounted opposite to each other in a ring or other conveniently shaped piece which
is carried on two other centres opposite to each other and at right angles to the
centres first mentioned.
Dated this 21st day of April 1892.