An Improved Portable Grip Lifting Jack for Railway Engines, Carriages, Wagons, Tram-cars, and other like Vehicles.
Year: 1891

page_text: Date of Application, 18th Dec., 1891-Accepted, 5th Mar., 1892
An Improved Portable Grip Lifting Jack for Railway Engines,
Carriages, Wagons, Tram-cars, and other like Vehicles.
FREDERICK ATTOCK Fernyhurst 131 Palatine Road near Manchester 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:-
My invention which will be hereinafter fully set forth and claimed, relates to a
device for raising, or lifting railway engines, carriages, wagons, tram cars, and
other like vehicles, so as to release the weight from the axle thereby enabling the
brass, or bearing, to be withdrawn from its seating for examination, and if necessary
replaced with a new one, and is applicable to such vehicles fitted with axleboxes
having a moveable front."
The object of my invention is to combine a modification in the construction of
axleboxes to that shown in the Specification of Letters Patent granted to me
dated 24th of January 1878 No. 321 such, that by means of my said grip lifting
jack, enables the operator to manipulate the work of raising the vehicle, no matter
where or in what position, the said vehicles are placed on the line of rails.
In applying my invention to the aforesaid purposes, I so construct the arrange-
ment, that one end of the lifting jack grips the tyre, rim, or retaining ring, of the
wheel from which point the required purchase for raising the weight is obtained,
thereby dispensing with the inconvenience of having to pack the various heights of
the ballast with blocks of wood, or other material, as has hitherto been the practice,
in order to obtain the required resistance.
Referring to drawing,
Fig. 1 is a front view, Fig. 2 a side view of my improved portable grip lifting
jack, and Fig. 3, is a general view, with the jack in position ready for the operator
to commence manipulating the screw, and thus raise the axlebox, together with
the vehicle simultaneously, to sufficient height as to enable the brass or bearing to
be withdrawn.
The construction of my invention is as follows, A is a spindle with a right and
left hand screw worked thereon the centre portion B being made square or any
other preferred shape, to receive an ordinary handle or lever C. D is a nut,
constructed in such a form that it may accommodate itself to and grip the wheel
tyre, rim, or retaining ring at point E, thus forming a seating for the necessary
pressure to resist the weight to be raised. F is also a mut so shaped as to abut
against the bottom of axlebox as shown.
Therefore, in the construction of the axlebox to suit my invention it will be
necessary to form a solid lug, or lugs, on the bottom, as shown at G, as the
resisting point for the top nut F.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I wish it to be understood
that I do not confine myself to the form of nuts D, and F, as shown, as these
may vary in shape to suit different designs of wheels, and axleboxes, but, I declare
that what I claim is :-
In combination with axleboxes for rolling stock, a means of raising and lowering
the said box, simultaneously together with the vehicle, by so adapting one end of
my apparatus to grip on the tyre, rim, or retaining ring, of the wheel, and the

page_text: other end to bottom of axlebox, thus obtaining sufficient purchase as to enable the
operator, by means of the screw to raise or lower the vehicle, for the object
aforesaid.
Dated this 17th day of December 1891
FREDERICK ATTOCK.