Improvements in Fastenings for Coal Port, Cattle Port, and other Ship Doors.
Year: 1899

page_text: -Date of Application, 8th Mar,, 1899
Complete Specification Left, 26th Sept., 1899-Accepted, 8th Mar., 1900
PROVISIONAL SPECIFICATION,
Improvements in Fastenings for Coal Port, Cattle Port, and other
Ship Doors.
WILLIAM CAMPBELL, 162, Albert Road, Jarrow-on-Tyne, Head Foreman Black-
smith, Ship Yard Department, Palmer's Shipbuilding and Iron Co. Ltd., Jarrow-
on-Tyne, do hereby declare the nature of this invention to be as follows:-
Strong backs, and tee bolts for securing coal port, cattle port, manure port, and
all such port and other doors. The strong back consists of a rolled iron or steel
channel bar with an oblong or round hole punched about ten inches from each
end, or more or less as may be required by purchaser. Into one of the aforesaid
holes is put a tee ended bolt, and into the other hole is put a bolt with a flat
shackle at ends, each of these bolts may be 13 inches diameter or more or less
as required by purchaser, upon the door or doors for which the aforementioned
strong back's; have been designed is placed two angle bars extending to almost
the full length of the aforesaid door, alongside of each of aforesaid angle bars is
placed two shorter angle bars, the exact size and length of which angle bars is
decided by purchaser, and supplied by purchaser of aforesaid strong backs and
bolts. Near to one end of aforesaid long angle bars is punched an oblong hole, in
the opposite flange to that secured to door. Near to opposite end of said bar is
punched a round hole. In opposite flange to that secured to door, two of the
aforesaid shorter angle bars have a round hole and two have a slot hole punched
in or about middle of opposite flange to that secured to door. The tee ended
bolts are then placed between the long angle bars and the short angle bars at
the ends where the oblong hole and the slot are placed immediately opposite to
each other. The shackle eye bolts are then placed between the two long angle
bars and the short angle bars, at the end's where the round holes are placed
immediately opposite to each other and secured by screw bolt and nut. The
strong back is then placed in position on the door, then the person so employed
screws up the bolts and firmly secures the door to its position. A most important
feature in the aforementioned strong back's is that they need not be removed
from the door, to which they are secured by the-bolts.
Upon proceeding to open the aforesaid door or doors it is. only required that
the person so employed shall unscrew the nuts of bolts just sufficient to allow
the tee ended bolts to be moved from their positions. The strong back's, can then
be placed in. a vertical or angular position on the door "according to make of
door" and secured by tightening up the shackle eye bolt in each strong back.
Another very important feature in those strong backs is that they dispense
with forging and smithing. Other important features embodied in aforesaid
strong backs are that they are light, strong, cheap, and most efficient for the
work for which they have been designed. And they are stowed very closely to
the door, when the door is. secured in its closed position, which is a most important.
matter especially in cattle carrying steamers.
If at any time the make or construction of the door or doors should be altered

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from the make or construction for which the aforesaid strong back's and bolts
have been designed, so as to remain on said door when said door is unsecured.
All the long aforesaid angle bars will have an oblong hole punched in for securing
strong back to door. Also the shorter angle bars will have a slot hole punched in
them for same purpose, and all the bolts supplied by the patentee for said.strong
backs will have a tee end, where the ended bolts or shackle eye bolts cannot
be used for securing said doors with the aforesaid strong backs, a double eye
bolt will be used.
The aforementioned strong backs and tee bolts I believe to be perfectly original.
Dated this 7th day of March 1899.
WM. CAMPBELL,
162, Albert Road, Jarrow-on-Tyne,
Improvements in Fastenings for Coal Port, Cattle Port, and other
Ship Doors.
WILLIAM CAMPBELL, 162, Albert Road, Jarrow-on-Tyne, Head Foreman Black-
smith, Palmer's Shipbuilding and Iron Coy. Limited, 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:
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The strongback consists of a rolled or pressed iron or steel channel bar A
with a round hole punched or drilled about twelve inches from each end of said
bar, into each of which-holes is put a 1" double-eye bolt B which is secured
by a. 1 collar pin D recessed to a piece of " tee or angle-bar, E rivetted to
door. Two brackets, or single eye-plate H, is rivetted or bolted to top of frame
of door. Each bracket, or single eyeplate, has a "hole in each. The aforesaid
channel-bar has a "hole punched or bored in top end. The channel bar is then
placed between the aforesaid brackets or over the single eyeplate, a "bolt is
then passed through the brackets or single eyeplate and the hole in the top end
of the channel bar, and the channel bar becomes hinged from the top of the
frame of the door, when the door has to be opened, it is only necessary to unscrew
the nuts on the bolts which secure the strongbacks to the door, sufficient to allow
the coller pin to be taken out of the double eyebolt.
The aforesaid coller pin has a recess formed in half an inch below the coller,
and three quarters of an inch long, and one eight of an inch less than the
diameter of the pin. When the recessed coller pin is put into the double eyebolt,
the recessed part is in a direct line with the centre of the tee, or angle bar, and
on screwing up the double eye bolt the recessed part of the collar pin is drawn
tight against the front edge of the hole in the tee, or angle bar, thus preventing
the coller pin from working out of place. The aforesaid recessed coller pin to
be used only in connection with the improved bars. The top of the channel bar
being hinged to the top of the frame of the door it is only necessary to take hold
of the bottom end of the channel bar and lift it up and stow it in a cleat or
hanger F provided for that purpose.
The aforesaid method of stowing the channel bar is to be carried out when
the channel is in a vertical position on the door. When the channel bar is placed
on the door in a horizontal position the brackets or single eyeplate are to be
rivetted to side of frame of door. The channel bar has then to be opened from
the door in a horizontal line and stowed in that position, in a cleat provided for
that purpose. Fig. 1, on the drawing shows a vertical section through G, H,

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Fig. 2, on the drawing shows inside view of channel bar strongbacks A, A. in
position when the door is secured. Fig. 3, shows a sectional plan through J, K.
When aforesaid channel bar is used for securing combustion chambers of
boilers, a steel, or malleable iron casting will be rivetted, "between or on the
"outside of channel bar at each end, the bottom edge of said casting to be
shaped to suit edge of combustion chamber plate, the said strong back may be
secured to combustion chambers of boilers by a similar method to that used for
securing them to the ship's doors, excepting by the use of the recessed coller
pin, which is to be used, as already stated, only in connection with improved
bars. The aforesaid coller pin D is secured by a piece of chain C, attached to
channel bar A.
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 ia:-
(1) The substitution of channel bars A in place of forged and smithed bars.
(2) The hingeing of channel bars A.
(3) The recessed collar pin D.
(4) The double eye bolt B.
(5) The brackets or single eyeplate H.
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