IMPROVE- jenxima 117 TO TANTS TAD DALL ATHED SIMIT AD JOINTS PROVISIONAL SPFICATION
Year: 1883

page_text: LETTERS PATENT to Arthur Samuel Hamand of N° 9 Bridge Street
Westminster in the County of Middlesex for an Invention of "IMPROVE-
jenxima 117 TO TANTS TAD DALL
ATHED
SIMIT AD
JOINTS
PROVISIONAL SPECIFICATION left by the said Arthur Samuel Hamand at
the Office of the Commissioners of Patents on the 9th May 1883.
ARTHUR SAMUEL HAMAND of No 9 Bridge Street Westminster in the County
of Middlesex 'IMPROVEMENTS IN FISH JOINTS FOR RAIL AND OTHER SIMILAR
JOINTS"
"
According to my present invention I construct Fish Joints for rail and other
similar joints as follows: The one fish plate is curved over the lower head of the
rail and being extended downwards somewhat, has its lower edge turned up into
a hook form. The other fish plate also curves round the lower head of the rail
and has its lower edge turned down so as to fit into the hook of the other plate.
The upper parts of the fish plates fit between the upper and lower heads of the
rail and are secured by a bolt in a similar manner to ordinary fish plates. The
inner surfaces of the plates are made to fit with more or less accuracy against the
surfaces of the lower head of the rail, so that when the one plate is hooked into
the other below, and they are drawn together at top by the bolt, they grip the
rail as in a vice, a considerable leverage being. afforded by their hooked connection
immediately below the rail.
•
According to another modification both fish plates pass beneath the rail as
before and are made to take with their lower edges into a separate trough shaped
piece, which ties or clips them together, when the upper ends are drawn in by the
bolt; or, for flat bottom rails, the trough shaped piece is made to embrace the
flange of the rail, projecting somewhat above the edges thereof, and the fish plates,
being bent so as to bear against both the web and the bottom flange, bear with
their lower edges against the projecting parts of the trough shaped piece when they
are drawn up by the bolt. Or any other arrangement may be employed by which
the lower ends of the fish plates are clipped together without the use of any other
bolt than that passing through the upper part thereof.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Arthur Samuel Hamand in the Great Seal Patent Office on the
8th November 1883.
ARTHUR SAMUEL HAMAND of N° 9 Bridge Street, Westminster, in the County
of Middlesex. IMPROVEMENTS IN FISH JOINTS FOR RAIL AND OTHER SIMILAR
JOINTS
"
"
According to my present invention, I construct fish joints for rail and other
similar joints as follows: The one fish plate is curved over the lower head of the
rail and being extended downward somewhat, has its lower edge turned up into a
hook form. The other fish plate also curves round the lower head of the rail, and
has its lower edge turned down, so as to fit into the hook of the other plate. The
upper parts of the fish plates fit between the upper and lower heads of the rail and
are secured by a bolt in a similar manner to ordinary fish plates The inner
surfaces of the plates are made to fit with more or less accuracy against the surfaces
of the lower head of the rail, so that when the one plate is hooked into the other
below, and they are drawn together at top by the bolt, they grip the rail, as in a
vice, a considerable leverage being afforded by their hooked connexion immediately
below the rail.
.
According to another modification, both fish plates pass beneath the rail as
before and are made to take with their lower edges into a separate trough shaped
piece, which ties or clips them together, when the upper ends are drawn in by the
bolt; or, for flat bottom rails, the trough shaped piece is made to embrace the
flange of the rail, projecting somewhat above the edges thereof, and the fish plates
being so as to bear against both the web and the bottom flange, bear with their
lower edges against the projecting parts of the trough shaped piece when they are
drawn up by the bolt. Or any other arrangement may be employed by which the
lower ends of the fish plates are clipped together without the use of any other bolt
than that passing through the upper part thereof.
DESCRIPTION OF THE DRAWINGS
:
Fig. 1 of the accompanying drawings shews one form of my above described
improved construction of fish plates, adapted for double headed rails. The plate A
fits the inner surface of the upper and lower heads and is extended downwards,
terminating in a hook A'. The second plate B also fits the upper and lower heads,
and curving round the latter is formed with its lower end B₁ to engage with the
hook A¹ of A. the two plates are secured together at their upper part by screw
bolts C, which cause thein, in taking a purchase on the inner face of the lower
head, to grip the rail with great firmness, as before explained.
Fig. 2 shews a modification in which the fish plates A and B are made identical
in shape, and, instead of engaging with each other below the rail; are made to
engage with their hooked lower ends A¹ B' in the separate clamping piece D.
Figs. 3 and 4 shew modified constructions as applied to flat bottomed rails. In
Fig. 3, a clamping piece D is brought up on each side of the rail and formed with
hooked ends D', with which engage the angle-shaped fish plates A B so that, on
these being tightened up by the screw bolts C they take a purchase with their
elbows against the flange of the rails and thus grip the same firmly. In fig. 4, a
similar action is produced, but the clamping piece D, in this case, has its ends D'
turned downwards below the rail, and the fish plates A and B are curved
downwards round the rail, so as to hook with their lower ends A' B' on to the
ends D¹.

page_text: Having thus described the nature of my invention and in what manner the same
is to be performed, I claim :-
First-Constructing fish plates with their lower parts extended below the rails,
where they are so formed as to engage either with each other or with a separate
piece without the use of screw bolts, a leverage being thus afforded, whereby they
are made to grip the rail firmly on being drawn together by screw.bolts passing
through their upper parts, substantially as herein described with reference to
figs, 1, 2 and 4 of the drawings
Second: Constructing fisli plates with angular lower parts engaging with a
clamping piece situated below the rail and projecting up on each side thereof,
substantially as herein described with reference to fig 3 of the drawings.
In Witness whereof, I the said Arthur Samuel Hamand have hereunto set my
hand and seal this eighth day of November in the year of our Lord, one thousand,
eight hundred and eighty-three