Year: 1886

page_text: We, ARMAND SOMMER, Master Smith, and AUGUSTIN KLUGE, Pastor, both of
Nieder-Schönfeld, District of Bunzlau, German Empire, 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 :-
This invention has reference to a construction of Jack that can be used as a
carriage lifter for raising and supporting the axle of any vehicle to admit of removing
the wheels and lubricating the axle or for repairing purposes.
The apparatus which is made as compact as possible, can be carried on the vehicle
so as to be available in case of repairs becoming necessary.
Referring to the annexed sheet of drawings, Fig. 1, is an elevation of the apparatus
shown in position to receive an axle.
Fig. 2 is an elevation of the apparatus with the prop disengaged from the rack.
Fig. 3 is a section along a-, Fig. 1.
Fig. 4 is a section along c―d, Fig. 1, to a larger scale.
A is the base plate of the frame B; this latter comprises the following parts
rivetted together: namely two cheeks CC, distance pieces D, and two guiding
surfaces E, E (see section Fig. 4). F is a slide along which a supporter M can be
adjusted The slide is constructed as a rack furnished with ratchet teeth; it is free
to slide in the troughlike space formed by the parts from e to f (Figs. 1 and 2), and
is guided at its upper end by means of a pin G moving in two slots H, H, in the
cheeks C C¹.
The upper portion of is connected by the pin G and by the double link G³ with
the short arm of the lever I, which has its fulcrum in the pin K.
The T-shaped forward part of the rack is embraced by the double claw L of the
supporter M designed to support an axle thus the double claw L can be raised or
lowered. Likewise M is provided with prop N somewhat pointed or pawl shaped
towards its lower extremity, which is able to engage with the ratchet teeth of the
rack F.
There is between the prongs of the double claw Land the rearward surfaces of the
T-shaped part of F, sufficient play to allow the forward end of M to describe a

page_text: small are, or movement such as will enable the prop N to be disengaged from one
tooth of this rack F and after M has been shifted, to be caused to engage with another
tooth of the rack.
The mode of operation of this apparatus when used as a carriage lifter, is as
follows: The supporter M having been placed under the axle of the vehicle to be
raised, the lifting is effected by depressing the long arm of the lever I, whereupon the
joints or connections of the lever, that is to say, the axes of K, K, and G, Fig. 1,
are caused to assume the relative positions shown in Fig. 2. So soon as the axis
of K has passed to the right of the straight line (Fig. 2) the lever is through the
toggle joint forced towards and is held firmly against the frame B by the weight or
load borne by M.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed, we declare that what we claim is :-
1.) The improved lifting jack substantially as described and shewn.
2.) In a lifting Jack the combination of a slide along which a supporter can be
adjusted, a lever and a toggle joint connection substantially such as described the
arrangement being such that when by the action of the lever, the joint (K¹) of the
toggle has been caused to pass to one side of a straight line (Fig. 2) the load
resting upon the supporter will be automatically held up or suspended as above
set forth.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicants.