An Improved Lever Lifting Jack.
Year: 1895

page_text: Date of Application, 11th Apr., 1895-Accepted, 11th May, 1895
An Improved Lever Lifting Jack.
I, WILLIAM JAMES VINCENT, of Arborfield Cross, Reading, in the County of
Berkshire, Foreman Coach Builder 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 relates to an improved lever lifting jack and has for its object to
provide a jack which shall be lighter and more easily taken to pieces and which
will take up less room when not in use than jacks heretofore constructed.
In order that my invention may be clearly understood I will now describe the
same with reference to the accompanying drawing, in which,
Figure 1 is perspective view of the jack in position for raising the axle of a
carriage or other vehicle.
Figure 2 is a similar view showing the axle raised by the jack.
Figure 3 is a front view of the standards and lever of the jack.
Figure 4 is a side view of the lifting bar or rail.
According to mylinvention I provide two standards or legs A A inclined towards
each other and braced together by means of a cross bar or stay A' of iron or other
suitable material secured thereto by means of rivets or otherwise. Between the
upper ends of the said legs I pivot a lever B and I so arrange that the bolt C or
the like on which the lever B is pivoted passes through the legs A A of the upright
and thus secures the legs together whilst allowing the lever to move freely between
them.
The said lever B is forked at one end thereof and is furnished with a pin or
bolt D which passes from one prong of the fork to the other for a purpose to be
hereinafter described.
E is the lifting rail of the jack which is preferably made of iron or steel of
"channel" or U-shaped section and is provided with an upper face or bar of wood
along which steps or large teeth E¹ are formed. The wood bar is conveniently
secured in the channel of the metal rail.
A groove or slot E' forming a hook is provided in the underside of the rail E
near one end thereof to engage the pin or bolt D of the lever B. I provide the
lower ends of the legs A with suitable feet A².
My improved jack is employed for lifting the axle of a carriage or the like in
the following manner that is to say, the stepped rail or bar E is first connected to
the lever B by causing the slot or groove E on the former to engage with the pin
or bolt D in the extremity of the lever B. The long end of the lever is now raised
as shown in Figure 1 and the rail E is passed under the axle F to be raised till it
touches or nearly touches the said axle. The long end of the lever B is then
depressed as shown in Figure 2 and in so doing the lever raises the rail E and thus
lifts the axle F from the ground.
In using the jack care should be taken to have the plane of the legs A vertical
or nearly so before the lifting begins, then when the long end of the lever B is
depressed the legs are caused to incline towards the rail and the pivot C of the
bandle is thus brought on the rail side of the plane passing through the pin D and
the lower ends of the legs. In this position the long end of the handle is resting
against the cross bar or stay A¹ which acts as a stop for the said lever.
The jack
will remain in this position and will support the vehicle without locking device to
prevent the lifting of the lever. I preferably make the lever curved as shown to
increase the stability of the jack.

page_text: My improved jack is made throughout of channel or U-section steel or iron or
parts thereof may be of wood. The jack is thus very light and it will be readily
understood that when the rail is removed the jack can be packed in a very small
space.
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. A lever lifting jack comprising the legs A a lever pivoted to the said legs,
and a readily removable lifting rail hooked to- the said lever, all of said parts
being made of channel or U-section metal substantially as and for the purpose
specified.
2. A lever lifting jack constructed substantially as described and for the purpose
angcified
Dated this 10th day of April 1895.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.