A New System of Joint between the Axle and Body of a Carriage especially applicable to Motor-cars.
Year: 1899

page_text: Date of Application, 25th Feb., 1899-Accepted, 15th Apr., 1899
3...
A New System of Joint between the Axle and Body of a Carriage,
especially applicable to Motor-cars.
I, ALPHONSE BLOT, of No. 40, Rue des Martyrs, Paris, in the French Republic,
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:.
The invention which forins the subject of the present application for a patent
relates to a new system for construction of the joint which enables the under-
frame to turn with regard to the body.
This joint is now made by aid of a vertical axle designated by the termi
joint-bolt.
I dispense with this joint-bolt and effect the joining by an annular joint
particularly advantageous in the case of motor cars because it lets pass through
its centre a fixed or movable column on which are placed all the constituent parts
for driving the motor and steerage.
My invention is represented in detail on the accompanying drawing, applied
by way of example to the joint between the body and the fore-carriage of a
motor-car.
In the accompanying drawings;
The part to the left of Figure 1 is an elevation, the part to the right a vertical
section following the axis of the annular joint.
Figure 2 is a plan.
A is the coupling of the body R R¹ are the wheels and B the axle of the movable
fore-carriage which comprises the suspension springs C and other accessories.
The bridge or yoke F fixed to the fore-carriage by the extremities of its arms
is arranged so as to form in its centre one of the paris of the annular ball joint
which I have invented. f, f¹ is a crown forming jaws of which the lower part f,
which is made in one piece with the yoke F constitutes a basin, for the first row
of balls b; the top part f1, joined by means of bolts or screws to the lower part f
forms a retaining cap for a second row of balls b¹. A ring a is fixed by bands or
a collar a and by aid of bolts a to the body A, it fits between the jaws f f¹
of the crown and is hollowed on the higher and lower side so as to constitute
a rolling surface for balls 61 and a surface resting on balls b. Rings c c¹ moving
with the balls may serve to preserve the spacing of these balls and thus dispense
with the use of a continuous crown of balls.
In the plan of Figure 2 we have supposed the body, ring a, and top part fl of
the joining crown to be removed. The part on the left represents the balls b
and ring c moving with these last and preserving their spacing. I have supposed
this ring broken in order to show on the part to the right the rolling surface
constituted by the lower part f of the crown. A simple inspection of the figure
gives an idea of the mobility of the body with regard to the fore-carriage.
This style of joint which may seem more complicated than the joint-bolt hitherto
employed allows, as I said above, all the controlling organs of the motor and

page_text: for steering to be placed on a fixed or movable column E, running in the hollow
centre of the joint.
D) is a cross-bar fixed by its ends to the fore-carriage and acting as a supporting
stay for the column E.
It is evident that instead of placing the crown with jaws f f¹ on the yoke F
the ring a being fixed to the body, I can reverse the arrangement by fixing
ring a to the yoke and the crown with jaws to the body.
Having now particularly described the nature of my said invention and in
what manner the same is to be performed, I declare that what I claim is:-
The new system of joining the body and under-frame of a carriage, characterized
by a crown placed on one of these parts with two cheeks f & f, into which a
cheek or ring fixed to the other part, fits; two rows of balls band b, running
one on the jaw f the other on the upper surface of the cheek, assuring perfect
mobility of the body with regard to the under-frame substantially as described
and set forth.
PHILLIPS & LEIGH,
22, Southampton-Buildings, Chancery Lane, W.C.,
Agents for the Applicant.