Year: 1898

page_text: Date of Application, 29th Oct., 1898
Complete Specification Left, 28th July, 1899-Accepted, 14th Oct., 1899
I, JOHN FLETCHER, of Page Terrace, Norton, in the County of Durham, Builder,
do hereby declare the nature of this invention to be as follows:-
My invention relates to a gate stop constructed to work automatically, that is
to say that the closing of the gate causes the stop to shoot up above the ground
line or pavement level but when the gate is opened again this stop or projection
drops back so as to be out of the way of the traffic.
In carrying out my invention I effect improvements in the construction of
this apparatus whereby its proper action is rendered more perfect, and the incon-
venience or danger to traffic by its use is entirely obviated. A suitable con-
struction for the purposes of my invention consists as follows. Within a covered-
in chamber below the ground or pavement is housed a system of leverage ful-
crummed to a bar extending from end to end of the chamber as a fixture. A
lever pivotted to this fulcrum bar projects sufficiently above the ground level
to obstruct the closing of the gate, which imparts a movement thereto accord-
ingly; this movement is transmitted through a rigid bar and pivotted link to
a lever which is lifted thereby and by its connection with the stop piece causes
this to shoot up above the ground or pavement level and to keep up so long as
the gate is closed and presses against the first motion lever. By opening the
gate this pressure is removed thereby withdrawing the support from the stop piece
which accordingly drops down by its own weight to the position from which the
pressure of the gate had lifted it. But it is essential that the chamber in which
the above described mechanism works shall be kept clear of all material which by
constant accumulation would obstruct the movement of the mechanism. To
effect this the slot in the cover for the requisite movement of the first motion
lever is automatically covered by a slide pivotally attached to the said lever and
adapted to slide forward over the cover plate of the apparatus and draw back over
the slot. The cover plate is preferably ribbed or ridged or roughened in some
equivalent manner for the safety of the horses stepping over it.
G. J. CLARKSON,
Chartered Patent Agent, Stockton-on-Tees and Hull,
Agent for the Applicant.
An Improved Gate Stop.
I, DOROTHY FLETCHER, the legal representative of the late John Fletcher,
Builder, both of Page Terrace, Norton, in the County of Durham, do hereby
declare the nature of this invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
My invention relates to a gate stop constructed to work automatically, that is
to say that the closing of the gate causes the stop to shoot up above the ground

page_text: line or pavement level but when the gate is opened again this stop or projection
drops back so as to be out of the way of the traffic.
The object of my invention is to effect improvements in the construction of
this apparatus whereby its proper action is rendered more perfect, and the incon-
venience or danger to traffic by its use is entirely obviated; added to which the
chamber in which the mechanism works is kept clear of dirt, snow or the like
material which by constant accumulation would obstruct the movement of the
mechanism.
And in order that my invention may be clearly understood and readily carried
into effect, I will proceed to describe a suitable construction of the same with
reference to the accompanying drawing, in which Fig. 1 is a side elevation of
the mechanism shown in the unlocked or unlifted position, corresponding to
which Fig. 2 is a plan view of the covered in chamber or casing. Fig. 3 is a
similar view to Fig. 1 showing the mechanism in the locked or lifted position,
and Fig. 4 is a corresponding transverse view taken on line of Fig. 3, the
covered in chamber being shown in section in Fig. 4 but omitted in Figs. 1
and 3.
A suitable construction for the purposes of my invention consists as follows:-
Within the covered in chamber a below the ground or pavement level is housed
a system of leverage fulcrummed to a bar extending from end to end of the
chamber as a fixture. A lever c pivotted at c¹ to this fulcrum bar b projects
sufficiently above the ground level to obstruct the closing of the gate, which
imparts a movement thereto accordingly: this movement is transmitted through
a rigid bar pivotted link e to a lever f which is lifted thereby and by. its
connection such as another pivotted link with the stop piece h causes this to
shoot up above the ground or pavement level and to keep up so long as the gate
is closed and presses against the first motion lever c as shown in Fig. 3. By
opening the gate this pressure is removed thereby withdrawing the support from
the stop piece which accordingly drops down by its own weight to the position
shown in Fig. 1 from which the pressure of the gate had lifted it by means of
some sort of trail catch attached to the bottom bar of the gate. But it is essential
that the chamber a in which the above described mechanism works shall be kept
clear of all material which by constant accumulation would obstruct the move-
ment of the mechanism. To effect this the slot i provided in the cover j for the
requisite movement of the first motion lever is automatically covered by a
slide pivotally attached at k¹ to the said lever and adapted to slide forward over
the cover plate of the apparatus and to draw back over the slot.
The cover
plate and the upper surface of the chamber a are preferably ribbed or ridged
or roughened in some equivalent manner for the safety of the horses stepping
over it.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
In combination with a gate stop working automatically by a system of leverage
housed in a covered in chamber, the means for excluding dirt, snow or the like
material therefrom and having the cover plate ribbed, ridged or roughened for
the safety of the horses stepping over it, substantially as and for the purpose as
herein before described with reference to the accompanying drawing.
יד
01
1
T1 1000
G. J. CLARKSON,
Chartered Patent Agent, Stockton-on-Tees and Hull,
Agent for the Applicant.