An Improved: Locking Device for Screw Nuts and the like.
Year: 1894

page_text: Date of Application; 18th Dec., 1894
Complete Specification Left, 10th Sept., 1895-Accepted, 12th Oct., 1895
.
PROVISIONAL SPECIFICATION.
An Improved: Locking Device for Screw Nuts and the like.
We, GUSTAV REUSCH and GUSTAV MERRETTIG of the Hammerwerk, Wiehl
in the Rhine Province in the Empire of Germany, Forge Musters, do hereby
declare the nature of this invention to be as follows:-
This invention has for its object, a locking device, fou screw nuts and the likes
Its application to a carriage axle may be here taken as an example. The nub Cof
the same is to be. kocked, and for the purpose of fine adjustment may after
unlocking be turned through as small an angle as possible, in such a way, that the
locking device may always be again engaged.
The axle as shown in Figure 2 is threaded at A, and formed with a squared
end B. The nut C (Figures and 3) is screwed on the threaded part A, and is
formed with a flange D...
In order to prevent undesirable turning, or loosening of this nut, a locking
piece E (Figures 1 and 4) is employed, which is placed on the squared end B
(Figure 2) and is therefore not revoluble, said locking piece being provided on the
side facing the nut C with une or more pins, adapted to enter suitable holes formed
in the corresponding face of the nut C. It is obvious that the nut C may vice versa
be provided with one or more pins, and the locking piece E with corresponding
holes.
The prevention of rotation of the locking piece may take place by means of
other stopping or fastening devices. (projections or the like), and such stopping. of
rotation may be communicated from the locking piece E to the nut C, by means
of other suitable devices than those described. The locking piece E may be
prevented from moving off the squared end by means of a transverse key. F
(Figures 2 and 5) inserted in the squared end, or by other suitable means.
A fine adjustment of the nut C is rendered possible according to the proportion
of the number of holes contained in its outer face, to the number of sides of the
squared end B, for if the nut C, for instance as shown in the drawing, be provided
with six holes and is turned or revolved to 60°, and the locking piece E be drawn
off, turned to 90° and again placed on the squared end, a coincidence of the pins
of E and the holes of would be effected after a turning of 90° 60° 30°; so
that it is possible to fix it after adjustment to the twelfth of a revolution.
By selecting other numbers of holes for the nut, or other numbers of sides or
angles for the end B, other degrees of adjustability may of course be obtained..
Dated this 17th day of December 1894.
=

page_text: performed, to be particularly described and ascertained in and by the following
statement:-
This invention has for its object a locking device for screw nuts and the like.
Its application to a carriage axle may be here taken as an example. The aut C
of the same is to be locked, and for the purpose of fine adjustment may after 5
unlocking be turned through as small an angle as possible, in such a way that the
locking device may always be again engaged
The axle as shown in Figure 2 of the drawings filed with the Provisional
Specification is threaded at A, and formed with a squared end B. The nut C
(Figures 1 and 3) is screwed on the threaded part A, and is formed with a
flange D.
In order to prevent undesirable turning or loosening of this nut, a locking
piece E (Figures 1 and 4) is employed, which is placed on the squared end B
(Figure 2) and is therefore not revoluble, said locking picce being provided on the
side facing the mut C with one or more pins, adapted to enter suitable holes formed
in the corresponding face of the nut C. It is obvious that the nut C may
vice versa be provided with one or more pins, and the locking piece E with
corresponding holes.
The prevention of rotation of the locking piece may take place by means of
other stopping or fastening devices (projections or the like), and such stopping of 2
rotation may be transferred from the locking piece E to the nut C, by means
of other suitable devices than those described. The locking piece E may be
prevented from moving off the squared end by means of a transverse key F
(Figures 2 and 5) inserted in the squared end, or by other suitable means.
A fine adjustment of the nut C is rendered possible according to the proportion
of the number of holes contained in its outer face, to the number of sides of the
squared end B, for it the nut C, for instance, as shown in the drawing, be provided
with six holes and is turned or revolved to 60°, and the locking piece E be drawn
off, turned to 90° and again placed on the squared end, a coincidence of the pins
of E and the holes of C would he effected after a turning of 90° - 60°:
30° so
that it is possible to fix it after adjustment to the twelfth of a revolution.
By selecting other numbers of holes for the nut, or other numbers of sides or
angles for the end B, other degrees of adjustability may of course be obtained.
-
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
--
An improved locking device for screw nuts, comprising a locking piece
adjustable on a squared end (the section of which is a regular polygon) of the axle
or the like, against the nut to be locked, and locking devices formed on said
locking piece or nut, or on both, adapted to lock together the nut and locking
picce and thereby prevent rotation of the nut, the locking devices being arranged
on the nut and locking piece at the angles of a regular polygon, thus securing
adjustability of the nut to the extent of the difference between the angles of the
1wo polygons, whereby an extremely fine adjustment of the nut may be effected,
substantially as described.
Dated this 9th day of September 1895.
5
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Agents for the Applicants.