Improvements in the Manufacture of Adjustable Bearings for Shafting.
Year: 1887

page_text: Date of Application, 4th Mar., 1887
Complete Left, 5th Dec., 1887.
Complete Accepted, 3rd Feb., 1888
Improvements in the Manufacture of Adjustable Bearings for
Shafting.
I JOHN WALKER NEWALL of Arnold Road, Bow, in the county of Middlesex,
engineer do hereby declare the nature of this invention to be as follows:-
This application refers to an improved method of constructing that form of adjustable
bearing for shafting in which the centre part of the bearing is made in the form.
of a portion of a sphere or ball, which ball can swivel to a limited extent in cups
formed on the ends of pins, which pins are adjustable vertically.
The usual way of adjusting the pins has been by means of a screw thread cut on
them working in a corresponding screw thread cut in the hanger or supporting
frame; these threads both being cut by machinery.
I form the threads by casting and I use the following means for getting the parts
truly in line and square with one another I make the screws in the bosses of the
hangers or brackets of a true form and truly in line by using one long core print
through both bosses and by using one long core made in a metal core box carefully
screw cut & fitted together. The hangers or brackets may be single or double sided.
If the latter the bottom part has to be separate from the top in order to introduce
the shaft. I cast both these parts in one in order to keep the screwed bosses truly in
line but at the point where they have to part I introduce splitting plates or a thin
core which nearly parts them, so that after casting they may be split open by wedges
in the usual well known way.
To form the screwed pins & cups I use the well known plan of screwing the model
pin out of the moulding sand; & while doing so I guide it top & bottom; the
guide plates are carefully fitted to the moulding boxes by turning so as to be central,
and the cup end is formed by another model plate also carefully fitted by turning to
the moulding boxes so that the axes of screw & cup are sure to correspond when the
boxes are put together.
Dated this Fourth day of March 1887

page_text: I JOHN WALKER NEWALL of Arnold Road, Bow Middlesex 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 :-
This invention refers to an improved method of constructing that form of adjustable
bearings for shafting, in which the centre part of the bearing is made in the form of
a portion of a sphere or ball, which ball can swivel to a small extent in cups formed
in the ends of pins, which pins carry or support the bearing proper & are adjustable
vertically.
The usual way of adjusting the pins has been by means of a screw thread cut on
them working in a corresponding screw thred cut in the hanger or supporting frame;
these threads being cut by machinery.
1 form the threads by casting and I use the following means for getting the
various parts truly in line, central and square with one another.
I make the screws in the bosses of the hangers or brackets of a true form and
truly in line by using one long core print through both bosses, and by using one long
core made in a metal corebox carefully screwed, and fitted together.
The hangers or brackets may be single or double sided, if the latter, the bottom
part may be made separate from the top in the following manner. I cast both these
parts in one in order to keep the screwed bosses truly in line, but at the point where
they have to part I introduce splitting plates or thin cores which nearly part them
so that after casting they may be spilt open by wedges in the usual way.
Referring to the Drawings Fig. 1 represents complete double sided hanger Fig. 2
a section of part shewing the bearing and adjusting screws A. is the main body of
hanger bracket B the parts screwed for the reception of the pins C the ends of which
are formed as cups to receive the spherical parts of the bearing D Fig. 1 A represents
an open side bracket. Fig. 3 represents part of the pattern from which the hanger
bracket Fig. 1 is cast B is the core print to which corresponds the core box Fig. 4
having an inside thread cut for forming the thread in the parts B B of the bracket.
The part A 1 which in the finished hanger or bracket is separate and detachable
from the main part is cast in one with it but with thin cores or splitting plates at A 2,
the parts A 2 A 1 being held together after splitting, by bolts.
To form the screwed pins and cups 1 use the well known plan of screwing the model
pin out of the mouldings and, while doing so I guide it top and bottom, the guide plates
are carefully fitted to the moulding boxes by turning so as to be concentric; and the
cup end is formed by another model plate also fitted to the moulding box by turning
so that the axis of screw and cup are sure to correspond when the boxes are put

page_text: together. The box for moulding these screwed pins is made in 3 parts, a centre box A
and top and bottom B and C Fig. 8.
The part A. is moulded as shewn in Fig. 6, that is the pattern screw F is screwed
up into the boss E of the plate D and the plate laid down with the screw standing up.
On D is laid the centre moulding box A and on top of all the spider plate G (also
shewn in Fig. 5) with the guide pin H projecting into the hollow screw model. The
box is rammed in between the arms of the spider plate, then the whole is turned over
and the screw model unscrewed through the boss E.
The top part B and bottom Care moulded off the respective sides of the pattern
plate Fig. 7, a runner is formed as shewn and then the 3 parts put together and
poured as usual.
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) The method of forming the screws in adjustable bearings for shafting by casting
instead of machining.
(2) The method described above of getting the screw threads a true shape and all
truly square and in line with one another.
Dated this 5th day of December 1887.
FRANCIS CAPEL CURE,
2, Whittington Avenue,
Leadenhall Street, E.C.,
Solicitor and Agent for the said
John Walker Newall.