Improvements in and relating to Rolled or Cast Sections suitable for Ships' Hatch Coamings, Skylights, and the like, and in Means for Securing the Covers for the same.
Year: 1895

page_text: Date of Application, 21st Nov., 1895
Complete Specification Left, 22nd Jan., 1896-Accepted, 29th Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in and relating to Rolled or Cast Sections suitable
for Ships' Hatch Coamings, Skylights, and the like, and in
Means for Securing the Covers for the same.
JAMES WILLIAM ROCKLIFFE 5, Davison Terrace, Southwick, Sunderland,
County of Durham, Mechanic &c. do hereby declare the nature of this invention
to be as follows:-
The object of this invention is, essentially to construct rolled, or cast metal
sections: such sectious to be used in constructing ships' hatch coamings; or for
building the same, or other purposes; the said sections being adapted for securing
the hatches, skylight covers, tarpaulin or other flexible covers, and a means or
substitute for hatch cleats; eye plates, ring plates, ring bolts, rivets, and the
rivetting on of these and similar fittings: by referring to the drawings inclosed
herewith the invention is shown and described.
DESCRIPTION OF THE DRAWINGS &c.
The same letters of reference indicate the same parts in all the figures, and
dotted lines, the parts not visible.
Fig. 1. shows a sectional elevation of a bulb zed channel; or bulb channel zed
formed by the cross sections, or flanges; the upper flange of which, may be flat, or
convex concarvo convex, or with a bulb the same as the bottom flange a. and
shown by the dotted lines a. G. A. and the said sections may be rivetted to the
coaming plate B. the top of which with C, forms a rest for securing the hatch ends,
& shown at D Figures 6 & 7. E is a split bolt which passes up through a hole in
the bottom flange F, which said bolt being wedged up, secures the batten H, and
the tarpaulin I. I. as shown at E. R. Figure 6. the said flange F, being also a
substitute for hatch cleats, eye plates, ring plates, ring bolts, rivets, and the
rivetting on of these and similar fittings; which it may entirely dispense with: and
it will also make the hatch coamings very much stronger, and with less weight in
proportion, than hitherto.
Fig. 2. shows a sectional elevation which may be the same as described in
Figure 1, excepting the bulb on the bottom flange: This section by itself forms an
entire batch coaming (see section Figure 7), which may be rivetted or bolted
through the bottom flange F. to the deck K. the batten H. and tarpaulin I. 1.
being secured by the means of wedges, indicated by the letters N. N. and shown in
the section referred to Figure 7.
Fig. 3. shows an elevation of a zed-section the upper flange of which, may be
flat or convex concarvo convex, or with a bulb as shown at a, Figures 1. 5. 6.
and the bottom flange b. b. may be connected by rivetting or otherwise to the
deck K. by means of an angle bar indicated by the letters L. L. and shown in the
Figure 6. or by means of the channel bar or section O. m. M. the upper flange O.
answering to all the requirements of the bottom flange F. Figures 1. 4. 5.
zed sections may also be used by itself for a very low hatch coaming by rivetting
or otherwise securing one flange to the deck parallel with the edge of hatchway
opening, the said flange answering for the hatch rest, and the top flange for securing
the battens and tarpaulins.
The

page_text: Fig. 4. shows an elevation of a bulb-channel section, or it may be a plain channel
as shown in the last figure O. m. M. these sections are suitable for a booby or other
hatch and skylight covers, which overlap the coaming plate B, or otherwise, the
upper flange O, answering for a rest, and the bottom flange M, answering all the
requirements of the bottom flange F. Figure 1. for securing purposes, &c.
Fig. 5. shows an elevation of a knuckle zed section, P indicating the knuckle ;
& a bulb angle section, Q being the bulb: the knuckle P and the bulb Q, forming
a recess to receive and lock the batten H and the wedges N. (see Figure 6).
R. is a hook bolt, which may be used in conjunction with an iron or steel wedge,
indicated by the letters E. R. and shown in the last named figure, instead of the
split bolt E Figure 1. or the wedges N. the upper flange of the zed section, may
be flat, or convex; or concarvo convex, indicated by the letters G. A. or with a
bulb or knuckle, or both and shown by the letters a. P. the under section may be
a common full bulb, balf bulb, plain angle, or an angle with the half bulb turned as
shown at Q, the said angles may also be cut into short sections, as shown and
indicated by the letters T. Figure 6.
Fig. 6. (Sheet 2.) is a sectional elevation showing a method of applying the
various sections herein mentioned and shown in the first sheet of the drawings,
& relates to all the aforesaid figures; which will vary in size according to the
requirements.
Fig. 7. shows an elevation which particularly relates to Figure 2 section, showing
method of applying the same for very low hatch coamings, and means of securing
the hatches, battens, and tarpaulins.
Dated this 21st day of November 1895.
JAMES WILLIAM ROCKLIFFE.
COMPLETE SPECIFICATION.
Improvements in and relating to Rolled or Cast Sections suitable
for Ships' Hatch Coamings, Skylights, and the like, and in
Means for Securing the Covers for the same.
JAMES WILLIAM ROCKLIFFE 5, Davison Terrace, Southwick, Sunderland,
County of Durham, Mechanic &c., 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 :-
The object of this invention is essentially to construct rolled, or cast metal
sections such sections to be used in constructing ships hatch coamings, skylights
and the like, or for building the same or other purposes, the said sections being
adapted for securing the ends of the hatches; skylight covers, also tarpaulin or
other flexible covers, and a means or substitute for hatch cleats, eye plates,
ring-plates, ring-bolts, rivets, and the rivetting on of these and similar fittings.
By referring to the drawings filed with my Provisional Specification the inven-
tion is shown and described, and which will now be more fully described.
DESCRIPTION OF THE DRAWINGS &c.
The same letters of reference indicate the same parts in all the figures, and
dotted lines the parts not visible.
Fig. 1. shows a sectional elevation of a bulb zed channel, or bulb channel zed,
the name being derived and formed by the cross section or flanges; the upper
flange of which may be flat, or convex ; concarvo convex, or with a bulb the same
as the bottom flange a, and shown by the dotted lines a. G. A. which said sections
may be rivetted to the coaming plate B, the top of which, with C forms a rest for

page_text: securing the hatch ends, and shown at D, Figures 6 & 7. E is a split bolt which
passes up through a hole in the bottom flange F, which said bolt being wedged up
secures the batten H, and the tarpaulins I. I. as shown at E. R. Figure 6.
the said flange F, being also a substitute for hatch cleats, eye plates, ring plates,
ring bolts, rivets, and the rivetting on of these and similar fittings, which it may
entirely dispense with; and it will also make the hatch coamings very much
stronger, and with less weight in proportion than hitherto and by simply holeing
this flange it is an equivalent for all the fittings herein and before mentioned.
Fig. 2. shows a sectional elevation which may be the same as described in
Figure 1. excepting the bulb on the bottom flange: this section by itself forms an
entire hatch coaming (see section Figure 7) which may be rivetted or bolted
through the bottom flange F, to the deck K, the batten H and the tarpaulins I. I.
being secured by means of wedges indicated by the letters N. N. and shown in the
elevation referred to Figure 7.
:
Fig. 3. shows an elevation of a zed section the upper flange of which may be
flat, or convex: concarvo convex, or with a bulb as shown at a Figures 1. 5 & 6.
and the bottom flange b. b. may be connected by rivetting or otherwise to the
deck K, by means of an angle bar indicated by the letters L. L. and shown in the
Figure 6, or by means of a channel bar O. m. M. the upper flange O, auswering
to all the requirements of the bottom flange F Figure 1. The zed sections are
particularly adapted for high or low hatch coamings; Figure 3. represents a
high coaming and in a modified form may be used by itself, for a very low
hatch coaming, (viz.) by reversing it and reducing the flange b. b. to about
three inches, less or more, and rivetting or otherwise securing the flange b, to
the deck K, or the like, with the edge of the said flange parallel with the
edge of the hatchway opening, the said flange answering for the hatch rest,
and the top flange being then in a reversed position and overlapping the deck
or the like; may be a half bulb as shown at a. in the Figures 1. & 5. but the
bulb will be on the reverse side of the flange shown, and it will be rounded
off to prevent the tarpaulins being cut the said bulb also makes the section
very much stronger; it also forms a recess to receive the tarpaulins and battens,
which can then be secured by means of the wedges, easily understood by
by_referring to the N, Figures 6 & 7.
Fig. 4. shows an elevation of a bulb channel section or it may be a plain
channel as shown in Figure 3. O. m. M. the bulb being added to give additional
strength when required; these sections are suitable for a booby or other hatch
and skylight covers which overlap the coaming plate B or otherwise, the upper
flange O, answering for a rest, and the bottom flange M, answering all the
requirements of the bottom flange F. Figure 1. for securing purposes, &c.
Fig. 5. shows an elevation of a knuckle zed section: P. indicating the knuckle:
and a bulb angle section which may be secured by rivetting to the coaming plate B
in the position shown: Q, being the bulb, the knuckle P and the bulb Q forming a
recess to receive and lock the batten H and the wedges N thereby effectually
securing the edges of the tarpaulins or other flexible covers, indicated by the
letters 1. 1. and shown: (see Figure 6). R, is a hook bolt, which may be used in
conjunction with an iron or steel wedge or other metal, indicated by the letters E, R,
and shown in the last named figure, instead of the split bolt E Figure 1. or the
wedges N. the upper flange may be flat or convex; or coucarvo convex, indicated
by the letters G. A. or with a bulb or knuckle or both, and shown by the
letters a. P. and it is to be observed that the upper flange in this section, likewise
Figures 1. 2 & 3. may be modified by being slightly bevelled if required to give
greater freedom for getting the hatches off and on; and the cross section C, on
the underside may be either a concave or in a parallel line with the top side, with
sufficient surface to allow for the tarpaulins or other flexible covers and battens
being easily secured the battens being also made to suit the said surfaces: the
bulb angle sections may be a common full bulb angle iron or half bulb angle iron,
plain angle iron, or an angle iron with the half bulb turned as shown at Q, the
:

page_text: said angle irons may also go right round the hatch coamings, or they may be cut
in the ordinary way (viz. by shearing or sawing) into short sections as shown and
indicated by the letters T Figure 6. the flanges of the said sections or angle irons
may also be reversed (viz.) the bottom flange may be turned up if a greater space
is required.
Fig. 6. is a sectional elevation showing a method of applying the various sections
herein and before mentioned and shown in the first sheet of the drawings and
relates to all the aforesaid figures and modifications of the same which sections will
vary in size according to the requirements.
Fig. 7. shows an elevation which particularly relates to Figure 2 section, showing
method of applying the same, for low hatch coamings; and means for securing the
hatches, battens, and tarpaulins, or other flexible covers.
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 :
1st. The improvements in and relating to rolled or cast sections suitable for
ships hatch coamings, skylights and the like, and in means for securing the covers
for the same, as described and shown in the drawings.
2. The zed channel, or channel zed sections, Figures 1 & 2. The bulb channel
section, Figure 4. and the zed sections as described; and shown Figures 3 & 5.
3. The means for securing the edges of tarpaulins or other flexible covers over
ships hatches and the like in the manner herein described, and shown in the
drawings.
Dated this 21st day of January 1896.
JAMES WILLIAM ROCKLIFFE.