Improvements in Mud Guards for Hansom Cabs.
Year: 1892

page_text: Date of Application, 10th May, 1892
Complete Specification Left, 28th Feb., 1893-Accepted, 15th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in Mud Guards for Hansom Cabs.
I STANLEY BETJEMANN Mechanician of 21 Agate Road Hammersmith do
hereby declare the nature of this invention to be as follows:-
-
The object of this invention is to provide Hansom cabs with an automatic guard
or shield to protect the garments of the passenger from dirt from the wheels in
getting in or out.
To accomplish this I hinge or pivot in any convenient way near the edge of the
doors where they meet in the centre, a guard of the proper form to cover the edge
of the wheel when the door is open and the guard extended.
When the doors are closed, the guard is folded down on the door.
To extend it, 1 attach a thrust rod, at a convenient distance from the hinge line
of the guard, by a pivot to the end of the guard, the other end of the rod, works
on a pivot on the fixed side or jamb, on turning the door open the rod thrusts the
guard forward on its hinges or pivots; when the door is fully open the guard is
fully extended-closing the door folds the guard back into its place.
The guard could also be work'd by an endless band or chain and pullies.
Dated this 10th day of May 1892.
STANLEY BETJEMANN.
COMPLETE SPECIFICATION.
Improvements in Mud Guards for Hansom Cabs.
I, STANLEY BETJEMANN Mechanician of 21 Agate Road Hammersmith 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:-
The object of this invention is to provide a self acting mud guard to the wheels
of Hansom cabs to protect the garments of passengers from contact with the wheels
when getting in or out.
For this purpose I use a parallelogram of metal-say-3 inches wide by 24 inches
long or any more suitable dimensions-having spurs or legs at convenient distances
from the ends. These spurs are made to turn in joints at the ends, which are
fastened to the doors near where they meet in the middle of the cab, so that the
spurs point from the centre line of the cab towards the wheels (when the doors are
closed) carrying the mud guards at the ends, lying down near the face of the
doors.
It will be seen that when the door is opened, the mud guard on the joints, can
be turned outwards to cover the wheel as desired, like opening a book.
"
To make this work automatically I put a pivot joint, or pin on the lower spur
about three inches from the knuckle joint that fastens it to the door.
At about the same distance from the hinge line, on the solid part of the cab,
I fix a bearing in a line with the pivot on the spur. I connect these by a thrust
rod working in the bearing and on the pivot-the result is that when the cab door
is opened, the thrust rod pushes the mud guard away from the door, till when the
door is fully opened the mud guard is extended in the required position over tyre
of the wheel. Closing the door pulls the mud guard back to its original position.
This thrust rod is provided with a screw thread at one end which goes into a nut,
which nut is extended to form the pivot joint, the object of which is to regulate the

page_text: length of the rod, so as to extend the mud guard to the exact position required
over the wheel.
The mud guard may be made in any desired form, such as a metal frame covered
with leather, or other material, or sheet metal, or wood; or it may be simply
a rod or bar plated or painted to fancy.
DESCRIPTION OF THE DRAWINGS.
Fig. 1. is a front view of the closed doors of a Hansom with the mud guards
attached.
A. A. are the doors. B. B. the fixed sides of the cab, C. C. the mud guards on
the spurs D. D. D. D. turning on the bearings E. E. E. E. F. F. are the thrust rods
working in the bearings G. G. H is the setting nut, for adjusting the length of
the thrust rods F. F. I. is the tyre of the wheel. J. is the foot board of the cab.
Fig. 2. Fig. 3. are perpendicular sections showing the door closed, half open and
fully open.
Similar letters denote the same parts in all cases.
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
1. An automatic mud guard to Hansom cabs.
2. An automatic mud guard practically as described and shown in these Speci-
fications and drawings.
3. The thrust rod F. with the setting nut H. for the purpose of a mud guard as
described.
Dated this 28th day of February 1893.
STANLEY BETJEMANN.