Improved Check Spring for Preventing the Breaking of Ropes, Chains, Straps, and the like when Subject to Sudden Jerks, such as in Lowering Casks and the like into Cellars.
Year: 1894

page_text: Date of Application, 12th Oct., 1894
Complete Specification Left, 11th July, 1895-Accepted, 17th Aug., 1895
PROVISIONAL SPECIFICATION.
Improved Check Spring for Preventing the Breaking of Ropes,
Chains, Straps, and the like when Subject to Sudden Jerks, such
as in Lowering Casks and the like into Cellars.
FREDERICK SHEPHERD 53 Lafone Street Horselydown London S.E.
Smith and Farrier do hereby declare the nature of this invention to be as
follows:-
An improved protecting spring the construction of which is very simple and
strong, it is made in four sections-a tubular box in two parts-a spiral spring
inside the tubular box-and a hook or eye which goes through the spiral spring
inside the tubular box.
The advantage is that the spring is confined inside the tubular box so that it
cannot get out of order by getting wet or dirty, neither can the above mentioned
spiral spring get away from its work as the bottom of the box is made solid for it
to rest upon, there is a small hole drilled through the bottom of the box to allow
the hook to pass through, the said hook is made secure by a nut at the top of the
spring so that when the heavy jerk comes upon the hook it brings down the spring
aud prevents the breakage of the said rope or chain.
The top of the tubular box will have a hook or shackle attachment so that it
can be connected to any gear.
This improved protecting spring can also be used in connection with harness to
take the sudden jerk from the shoulder of a horse when starting a load by being
attached to the traces or hames.
Dated this Twelfth day of October 1894
FREDERICK SHEPHERD.
Improved Check Spring for Preventing the Breaking of Ropes,
Chains, Straps, and the like when Subject to Sudden Jerks, such
as in Lowering Casks and the like into Cellars.
FREDERICK SHEPHERD No. 53 Lafone Street Horselydown London S.E.
Smith and Farrier 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 said invention relates to an improved check spring for preventing the
breaking of ropes, chains, straps and the like when subject to sudden jerks such
as in lowering casks and the like into cellars, also to be used in connection with
harness to take the sudden jerk from the shoulders of a horse when starting a
load. It is particularly adapted for roller bolts on splinter bars of vehicles.
The said check spring is made in sections and consists of the following:
A tubular metal box or case in two parts, one part of which forms a cap and screws
on to the other portion, the end of which is threaded, also a spiral metal spring or
[Price 8d1

page_text: preferably two spiral metal springs with a metal tube acting as a stop to protect
such spring or springs fitted inside the tubular box or case, also a metal spindle
with an hook or eye which passes through the spiral spring or springs and metal
tube stop inside the tubular box or case.
I have also a metal hinged shackle or collar which opens on a pivot and which
is attached to the top of the tubular box or case by means of a bolt and nut.
This shackle or collar can be connected to any gear. The metal spindle, having a
hook or eye above referred to is secured at the top of spring and metal stop inside
the tubular box or case by means of a nut, a small hole being drilled through the
bottom of the tubular box to allow the spindle to pass through. This nut while
it secures the metal spindle also gives the spiral spring its proper tension.
The metal protecting stop above referred to is a smaller tube working freely
inside the spiral spring or springs and its object is to prevent the said spring or
springs from being overstrained or becoming jammed. A jerk coming upon the
spring the tube acts as a stop taking its bearing at the bottom of the tubular box
or case which is solid.
For the purpose of more fully explaining the nature of my said invention
reference is made to the accompanying drawing:
Figure 1 is a representation of the improved check spring.
sectional drawing of the same.
Figure 3 represents the metal hinged shackle or collar.
Figure 2 is a
In Figures 1 and 2, A is the tubular metal box or case, A' the screwed cap on
same.
B is the shackle or collar with hinge B'.
In Figure 2 B is the bolt and nut which secures the shackle or collar to cap of
tubular box. C is the metal spindle with hook or eye C¹.
C' is the nut at top of spring securing the hooked spindle. D is the metal tube
stop. E is the spiral spring (or springs).
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed declare that what I
claim is :-
(1.) The herein above described improved check spring consisting of a tubular
metal box or case (A) with screwed cap (A'), a spiral metal spring or springs (E),
a metal tube stop (D), and a metal spindle (C) having a hook or eye. (C), the
several sections being connected substantially as above described and for the
purposes as above set forth.
(2.) The metal hinged shackle or collar attachment (B) substantially as and for
the purpose above described.
Dated this the 11th day of July 1805
FREDERICK SHEPHERD.