Improvements in Iron or Steel Bars or "Needles" for Regulators of Sluices or Waterways, and for Sheet Piling.
Year: 1885

page_text: Improvements in Iron or Steel Bars or "Needles" for Regulators
of Sluices or Waterways, and for Sheet Piling. of Coffer Dams.
I J. E. WHITING member of the Institution of Civil Engineers Westminster
of Karachi Sind India do hereby declare the nature of my invention for IMPROVE-
MENTS IN IRON NEEDLES FOR REGULATORS OF WATERCOURSES AND IN SHEET
PILING FOR COFFER DAMS, to be as follows:-
"
I close the waterway, either entirely, or in part, by means of a number of iron
(or steel) "needles" of suitable cross section which are so made that the tip or
edge of each needle is overlapped by its neighbour, and the pressure of the water
against the "needles" makes this lap a tight joint; these "needles rest against
horizontal beams of wood or iron spanning the waterway; two or more tiers of
"needles" may be employed in deep waterways; a type section of several successive
"needles" is shewn in Figure 1; they may be made from steel plate by pressure
between a die and matrix; they may be strengthened by ties as shewn in the
drawing.
The overlapping parts of each "needle" are curved or bent (vide Figure 1) so as
to fit its neighbour; thus in putting the "needles" in, each one slides accurately
into position being guided exactly by the edge of the one previously let down; the
first "needle" is guided by a strip of iron of the necessary shape secured to the
side of the waterway.
Or the needles may of polygonal section which might be rolled (vide Figure 2).

page_text: Improvements in Iron or steel bars or Needles for Regulators
of Sluices or Waterways, and for Sheet Piling of Coffer Dams.
I, JAMES EDWARD WHITING, Member, of the Institution of Civil Engineers, of
Karachi, Sind, India do hereby declare the nature of my invention for IMPROVE-
MENTS IN IRON OR STEEL BARS OR NEEDLES FOR REGULATORS OF SLUICES OR
WATERWAYS AND FOR SHEET PILLING OF COFFER DAMS, and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
The steel sheet pile or regulating needle, shewn in Fig. 1 Sheet No 1 and
Figs. 1, 2, 3, Sheet No 2, is pressed cold between die and matrix from a rectangular
steel plate; the shape of the section is shewn in Fig. 1 Sheet No 1 which shews
two piles and portions of the other two adjacent piles."
The tie bolts are spaced as shewn in Fig. 1 Sheet N °2; each tie bolt is " square,
but the point is turned down to "dia to take a nut; the holes therefore on one
side of the pile must all be " square and on the other " dia, and the holes in the
continuous washer bar (marked B in Fig. 1 Sheet N° 1) must also be "dia and
must be spaced to fit the tie bolis; each washer bar to be 9' long and 2" x 4".
Each tie bolt to be pierced with a slot to take a cotter (C in Figs. 2 and 3
Sheet N° 2) the slot to be made so that the cotter when driven home may join the
pile tight against the bolt head; with a low pressure of water, or with extra thick
piles the tie bolts may be omitted.
In order that, for very deep sluices, the piles may be used in two or more tiers,
fishplates (F Fig. 3 Sheet No 2) may be employed which have notches catching on
to the tie bolts to retain them in position, and to enable the lower piles to be
drawn up with the upper ones: Piles of this section, if made thicker, or of similar
thickness but less width may be rolled.
The piles or regulating needles shewn in Fig. 2 Sheet No 1 are rolled to the
section shewn; if desired of uniform thickness; this section might be pressed.
The drawings are dimensioned and the dimensions are referred to in the
descriptions for the more ready comprehension thereof, but the claim is not
confined to these or any other special dimensions.
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 steel regulating needle or sheet pile of the sections shewn in Figs. 1 and 2
Sheet N° 1 made so that each overlaps its neighbours, the overlapping portions
forming close joints on account of the pressure of the water, the part overlapped
forming a guide to the adjacent needle and so on.
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