Improvements in Buffers for Engines, Carriages, and Wagons in Use on Railways and Tramways, and for other Purposes.
Year: 1886

page_text: Date of Application, 10th Dec., 1886.
Complete Left, 9th Sept., 1887.
Complete Accepted, 11th Oct., 1887
Improvements in Buffers for Engines, Carriages, and Wagons in Use
on Railways and Tramways, and for other Purposes.
I, HENRY OAKDEN FISHER of the Highlands, Llandough near Cardiff, Civil
Engineer do hereby declare the nature of this invention to be as follows:-
My invention consists of improvements in the mode of holding together the plunger
and case of outside buffers in which a movement known as the "bayonet" movement
is used.
To make my invention clear I have added drawings to show some of the forms
which may be adopted.
Figure 1. shews a section of a buffer in which C is the solid plunger D the buffer
case E the base plate F the square or oblong shaped spindle which is made solid with
the plunger C. G are the projections.
The dotted lines in the neck of the buffer case represent slots H. The plunger C is,
after the projections have cleared the slots H, turned round sufficiently for the pro-
jection G to clear the slots H, so that, in working, the projections will strike against
the solid portion of the neck of the buffer case.
The buffer spindle F being made square or of an oblong shape is kept from turning
round by working in a correspondingly shaped hole in the base plate E which is in
turn held by being bolted to the buffer case D in the usual manner.
Figure 1 is a sectional plan of Figure 1. at A B. showing the slots H and the
projection G dotted in position.
Figures 2. 3. and 4 are modifications of forms of buffers in which the plunger and
buffer case are held together in a similar manner to Figure 1.
Figure 5 is section of solid plunger buffer in which the plunger is held from
turning round after the projections are in position by means of the square or
oblong shaped spindle which is made solid with or attached to the base plate E
and which works in a correspondingly shaped hole in the plunger.
Figure 6 is a hollow plunger buffer in which the plunger and buffer case are held
together in similar manner to Figure 5.

page_text: Figure 7 is section of a hollow plunger buffer in which C is the plunger D the
buffer case G projection on the plunger C. H are slots extending the whole length
of the inner side of the buffer case D and M are other slots extending from the
base of the buffer case D for a certain distance along its innerside. The projections G
on the plunger C are passed through the slots H and when clear the plunger is
turned round sufficiently for the projections G to pass into and work in other
slots M. When the base plate E is placed thereon or the whole buffer is placed in
position on the headstock the projections G cannot come out of the slots M by
which means the plunger and buffer case are held together.
Figure 7 shows sectional plan of Figure 7 at A B showing slots H.
Figure 7b is section of Figure 7 at R. S. showing slots H and slots M with
projections G in position.
Figures 8. 8 8 show a solid plunger buffer in which buffer case and plunger are
held together in similar manner to Figure 7.
In all cases shown one or more slots may be used and a bush as shewn in
Figure 4 can be used when spindle F is used.
The various parts of the buffer may he of any suitable metal and steel or india
rubber springs may be used.
Dated this 9th day of December 1886.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: on Railways and Tramways, and for other Purposes.
I, HENRY OAKDEN FISHER, of the Highland, Llandough, near Cardiff, Civil
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 :―
My invention consists of improvements in the mode of holding together the
plunger and case of outside buffers in which a movement known as the "bayonet"
movement is used.
To make my invention clear I will refer to the drawings annexed to my
Provisional Specification, which show some of the forms that may be adopted.
Fig. 1 shows a section of a buffer in which C is the solid plunger, D the buffer
case, E the base plate, F the square or oblong shaped spindle which is made solid
with the plunger C. G are the projections.
The dotted lines in the neck of the buffer case represent slots H. The plunger C
is, after the projections have cleared the slots H, turned round sufficiently for the
projection G to clear the slots H so that, in working, the projections will strike
against the solid portion of the neck of the buffer case.
The buffer spindle F being made square, or of an oblong, polygonal, or equivalent
shape, (for example, with a feather-like lateral projection or projections,) is kept
from turning round by working in a correspondingly shaped hole in the base
plate E which is in turn held by being bolted to the buffer case D in the usual
manner.
Fig. 1 is a sectional plan of Fig. 1 at A, B, showing the slots H and the
projection G dotted in position.
Figs. 2, 3, and 4 are modifications of forms of buffers in which the plunger and
buffer case are held together in a similar manner to Fig. 1.
Fig. 5 is a section of solid plunger buffer in which the plunger is held from
turning round after the projections are in position by means of the square or
oblong shaped spindle which is made solid with or attached to the base plate E,
and which works in a correspondingly shaped hole in the plunger.
Fig. 6 is a hollow plunger buffer in which the plunger and buffer case are held
together in similar manner to Fig. 5.
Fig. 7 is a section of a hollow plunger buffer in which C is the plunger, D the
buffer case, G projection on the plunger C. H are slots extending the whole length
of the inner side of the buffer case D, and M are other slots extending from the
base of the buffer case D for a certain distance along its inner side. The projections G
on the plunger C are passed through the slots H, and when clear the plunger is
turned round sufficiently for the projections G to pass into and work in other
slots M. When the base plate E is placed thereon or the whole buffer is placed

page_text: in position on the headstock, the projections G cannot come out of the slots M;
by which means the plunger and buffer case are held together.
Fig. 7" shows sectional plan of Fig. 7 at A, B, showing slots H.
Fig. 7 is section of Fig. 7 at R, S, showing slots H and slots M with projections G
in position.
Figs. 8, 8, 8, show a solid plunger buffer in which buffer case and plunger are
held together in similar manner to Fig. 7.
Having described the nature of my said invention, and in what manner the same is
to be peformed, I would have it understood that the details of construction illustrated
by the annexed drawings are susceptible of modification without departure from the
essence of my invention; for example, although in describing my arrangements I
have shown more than one slot in the buffer neck and in the buffer case respectively,
because I consider it advantageous to use more than one, yet it will be evident that
in some cases one only might be used, although I do not recommend such an arrange-
ment; also a bush, as shown in Fig. 4, can be used when spindle F. is used:
furthermore, the various parts of the buffer may be of any suitable metal, and steel
or indiarubber springs may be used, and I hereby declare that what I claim is :-
1. In a buffer, the combination of a case with internally slotted neck and solid
portions or portion, a plunger or rod with projections or projection designed to take
against the said solid portions or portion of the neck and a square or equivalently
formed spindle whereby when the plunger or rod has been inserted through the
slotted neck aud partially rotated and the base plate has been fixed, the plunger or
rod will be prevented from turning within and from leaving the buffer case,
substantially as described.
2. In a buffer, the combination of a case with internal slots or slot.extending the
whole length of the buffer case, and with other and shorter slots or slot extending
from the base of the buffer case a certain distance along its interior and a plunger
or rod with projections or projection, the arrangement being such that the pro-
jections of the plunger or rod can be passed through the first named slots or slot
then partially rotated, and by a return movement be caused to enter the secondly
mentioned slots in the buffer case whereby the plunger or rod will be prevented from
turning within and from leaving the buffer case (when the base plate is fixed)
substantially as described.
3. My improved buffers with means for holding together the plunger and case
substantially as hereinabove described with reference respectively to and illustrated
by Figs. 1 and 1ª; by Fig. 2; by Fig. 3; by Fig. 4; by Fig. 5; by Fig. 6; by
Figs. 7, 7, and 7b; and by Figs. 8, 8ª, and 8 of the drawings annexed to my
Provisional Specification.
حيم
1