Improvements in Means for Securing Nuts and for Automatically' Tightening them for the Adjustment of Bearings and the like to Compensate for Wear.
Year: 1887

page_text: Date of Application, 4th Apr., 1887
Complete Left, 3rd Feb., 1888
Complete Accepted, 4th Apr., 1888
Improvements in Means for Securing Nuts and for Automatically'
Tightening them for the Adjustment of Bearings and the like
to Compensate for Wear.
JOHN WHITEHEAD Engineer 14 Arlington Street London S.W. do hereby declare
the nature of this invention to be as follows:-
My invention relates to an apparatus for securing and automatically keeping up-to
their work screw nuts, as applied to bearings and crank pin brasses more particulary
but my invention is also applicable to one or more nuts in any position where they
would be liable to become loose through wear, vibratory or other strains.
The nut to which my attachment is applied may be of any convenient form but
preferably with a groove round its periphery, which holds the spring in position,
and provided with holes drilled in such a way as to allow of a pin being inserted
vertically in the nut and bridging over the groove, thus forming a convenient point
of attachment for the spring. To the hole or pin is attached one end of a spiral or
other suitable spring its other end being attached to another corresponding hole or
stud in the other nut, the spring passing round the whole or a portion of the circum-
ference of both nuts or a single nut can be used, the spring being attached and
wound round same, the other end being fixed to a stud or pin in some convenient
position. The spring is so attached to the two points as to put a tension upon it,
giving it a tendency to turn the nuts in the proper direction for screwing them up, so
that in the case of a bearing the nuts will always keep the cap screwed down to a degree
of tightness which depends on the tension of the spring. The tension of the spring
can be adjusted by attaching its end to different holes or studs on the circumference
of the nut. In a similar manner cotters can be kept up their work by means of a
nut screwed on to a prolongation of one end of the cotter and acted upon by a spring
as described above.
Nuts liable to become loose can be held in proper position by the spring in the
same way.
T
2
В 35
1 1005

page_text: JOHN WHITEHEAD Engineer 14 Arlington Street London S.W. 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 an apparatus for securing and automatically keeping up to
their work screw nuts, as applied to bearings and crank pin brasses more particularly, 5
but my invention is also applicable to one or more nuts in any position where they
would be liable to become loose through wear, vibratory or other strains. The nut to
which my attachment is applied may be of any convenient form but preferably with a
groove round its periphery which hold the spring in position and provided with holes
drilled in such a way as to allow of a pin being inserted vertically in the nut & 1
bridging over the groove thus forming a convenient point of attachment for the
spring. To the hole or pin is attached one end of a spiral or other suitable spring, its
other end being attached to another corresponding hole or stud in the other nut, the
spring passing round the whole or portion of the circumference of both nuts or a
single nut can be used, the spring being attached and wound round same, the other
end being fixed to a stud or pin in some convenient position. The spring is so
attached to the two points as to put a tension upon it, giving it a tendency to turn
the nuts in the proper direction for screwing them up, so that in case of a bearing
the nuts will always keep the cap screwed down to a degree of tightness which
depends on the tension of the spring. The tension of the spring can be adjusted by 2
attaching its end to a different hole or stud in the circumference of the nuts. In a
similar manner cotters can be kept up to their work by means of a nut screwed onto
a prolongation of one end of the cotter and acted upon by a spring as described
above.
Nuts liable to become loose can be held in proper position by the spring in the 2
same way.
The foregoing description will be fully understood by reference to the accompanying
sheet of drawings, Figs. 1. 2. 3 and 4 shewing application of automatic adjusting
arrangement applied to connecting rods and Figs. 5 & 6 to main or other bearings.
A grooved nut. B.spiral spring and adjustable pin.
2

page_text: Having now particularly described and ascertained the nature of my invention
& in what manner the same is to be performed, I declare that what I claim is.
1st. The automatic arrangement for the adjustment of bearings substantially as
herein described and shewn in accompanying drawing.
2nd. The use of grooved nuts provided with holes drilled vertically & pin for
adjusting the tension of the spring or any mechanical equivalent.
Total : 011
TI
1000
JOHN WHITEHEAD.
Per Browne & Boly,
Agents.