of a like Nature, and in the Manufacture thereof.
Year: 1885

page_text: of a like Nature, and in the Manufacture thereof..
I, ROBERT ANTHONY HARDCASTLE, of 30 Hyde Terrace, Leeds, in the County
of York, Engineer, do hereby. declare the nature of this invention to be as
follows:-
This invention relates to the construction of metallic sleepers and of articles of
a like nature, of the malleable type, to which by means of bolts or rivets rail-chairs
or other objects have to be attached. Such sleepers or other articles as heretofore
constructed of thin material afford but a short lateral bearing for the bolts or
rivets, the effect of such short bearing tends to the early wearing away (or
cutting) of the bolts or rivets at the part in contact therewith.
In order to obviate such early destructive effect I emboss or thicken the metallic
plate constituting a sleeper or other like article around the holes for the reception
of bolts or rivets in accordance with the process as set forth in my Specification
No 12,137, A.D. 1885, thus providing a longer axial or lateral bearing for the bolts
or rivets. Preferably I make such thickening,. embossing or annular projection
parallel or thereabout on its periphery and also prefer to surround such emboss-
meut with a washer of the same thickness as the axial length thereof in order to
provide a full or enlarged bearing for the head of the bolt, rivet or nut (as the
case may be) than would be afforded by the diameter of the embossment alone.
1
1005

page_text: Improvements in Metallic Sleepers for Railways and in Articles
of a like Nature, and in the Manufacture thereof.
°
I, ROBERT ANTHONY HARDCASTLE, of 30 Hyde Terrace, Leeds, in the County
of York, 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 relates to the construction of metallic sleepers of the malleable
type, to which by means of bolts or rivets devices such as chairs for holding rails
have to be attached. Such sleepers as heretofore constructed of thin metal afford
but a short lateral bearing for the bolts or rivets and it results that there is a
tendency to cutting and to early wearing away of the bolts or rivets at those parts
that pass through the holes in the sleepers.
In order to obviate this, a sleeper according to my invention is made with holes.
having around them embossments or parts of increased thickness. Such emboss-
ments may be produced in the manner set forth in my Specification Nº 12137,
A.D. 1885. With such a thickening, embossing or annular projection, which
I prefer to make of cylindrical form at the periphery, I in some cases use a
surrounding ring or washer of a thickness equal to the depth of the cylindrical
projection, thus providing a full or enlarged bearing for the head of the bolt rivet
or nut, (as the case may be).-In the annexed drawings, Fig. 1, is a section on the
line 1. 1, Fig. 2. of part of a sleeper a. Fig. 2, is a view of the embossed side of
the same. b, is the embossment or thickening of the thin material of which the
sleeper is constructed, thus giving a longer bearing for a bolt or rivet as shewn
from c. to c, and preventing the early wearing or cutting of the bolts or rivets, and
in order to provide a sufficient surface for the bearing of a bolt head or nut, or for
the head of a rivet, I surround the said embossment by a ring or washer d, the
thickness of which is equal to the depth or extent of projection of the embossment,
the ring or washer is pressed into place upon the embossment or enlargement of
the sleeper.
When the hole is required to be square or of other shape to suit the form of bolt
to be used and to prevent its turning in the hole, a "cutting drift" of suitable
section may be passed through the hole for producing the shape required.
In some cases the hole and embossment may be of an elongated form as shewn
in Figs. 3, and 4. (Fig. 4 being a view of the embossed side of Fig. 3.) so that a
T headed bolt may be passed through the hole and then turned so that it may
take a bearing on the embossment or on the embossinent and ring by which such
embossment may be surrounded for the purpose above mentioned.

page_text: 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
1. A metallic sleeper formed with bolt or rivet holes having around them
embossments or parts of increased thickness as and for the purpose specified.
2. The hereinabove described application and use of washers or rings d,
surrounding embossments or projections formed around the bolt or rivet holes of
railway sleepers as specified.