Year: 1887

page_text: Date of Application, 18th Aug., 1887
Complete Left, 7th May, 1888
Complete Accepted, 13th July, 1888
WALTER PRIESTLAND New Whittington, Chesterfield, Derbyshire, Fitter and
Turner, do hereby declare the nature of this invention to be as follows:-
My core-barrel which is self-closing can be used for pipes from 4 inches in diameter.
The chief features of Novelty are a centre, a wedge and the mode of drawing &
replacing the wedge hereinafter described. The centre consists of a wrought iron rod
or spindle with three solid wheels or bosses (cast on or keyed on); one wheel or boss
at both ends and the third wheel or boss in the middle of the corebarrel.
The one
half side of each wheel or boss is rivetted to the corebarrel, the other half side is cut
away so as to allow the corebarrel to close in when the wedge is withdrawn. That
part of the centre-rod which is at the working end is threaded. And on that threaded
part a brass or wrought iron nut is fixed to displace or replace the wedge. In the
core barrel, there is a slot, bevelled from end to end, wider at the working end than
at the other. The wedge is also bevelled and fits into the slot, being broader at the
end at which the nut works than at the other. The wedge (either wrought iron or
cast iron) works in the slot of each solid wheel or boss. In making a pipe of a greater
diameter the centre rod may be cast iron. The claim as my invention is for the above
Features of Novelty.
I 1000

page_text: An Improved Corebarrel for Making Cast Iron Pipes.
I, WALTER PRIESTLAND, New Whittington, Chesterfield Derbyshire Fitter and
Turner, 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 :-
An invention of a corebarrel of any required diameter from four inches, and of such
form and make as with appliances after named may be opened and closed for use in
the casting of iron and other metallic pipes. The chief features of Novelty are a
centre, a wedge and the mode of drawing and replacing the wedge, hereinafter
described. The centre consists of a wrought iron rod or spindle (A B) with three
bosses (K K K³) (cast or keyed on) one boss at each end and the third boss in the
middle of the Corebarrel. The one half side of each boss K is rivetted to the
Corebarrel, the other half side is cut away so as to allow the Corebarrel to close in
when the wedge (GH) is withdrawn. That part of the centre rod (A B) which is at
the working end is threaded (at T). And on that threaded (T) part a brass or
wrought iron nut (N) is fixed to displace or replace the wedge (GH). In the
Corebarrel there is a slot, bevelled from end to end broader at the working end than
at the other. The wedge (GH) is also bevelled and fits into the slot being broader at
the end at which the nut (N) works than at the other. The wedge (GH) (either
wrought iron or cast iron) works in the slots of the three bosses (K¹ K² K³). In
making a pipe of a greater diameter the centre rod or spindlo (A B) may be of cast
iron and in making such pipes in corebarrels of larger size the following mode of
withdrawing and replacing the wedge may be adopted. At the working end a fourth
boss is fastened to the Corebarrel. In the boss a pocket is cast wide enough to admit
a nut. This nut works the screw which is connected with the wedge.
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. An invention of a Corebarrel of any required diameter from 4 inches, which is
self-closing, for use in the casting of iron and other metallic pipes.
2. A centre, consisting of an iron rod or spindle (AB) with three bosses
(KK K³) (cast or keyed on) one boss at each end and the third in the middle.
3. A wedge (GH) which works in the slot of the Corebarrel and is bevelled,
broader at the working end.
4. The mode of withdrawing and replacing wedge (GH) by means of a brass or
wrought iron nut (N) fixed on the threaded (T) part of centre rod (A B) at
working end and in Corebarrel of greater diameter by a fourth boss in which a
pocket is cast wide enough to admit a nut of any required dimensions and which nut
works the screw that is connected with the wedge.
Dated this Difth do 1000