Improved Fastening for Ships' Hatch Covers and the like.
Year: 1894

page_text: Date of Application, 5th Dec.. 1894
Complete Specification Left, 16th Sept., 1895-Accepted, 16th Nov., 1395
PROVISIONAL SPECIFICATION.
Improved Fastening for Ships' Hatch Covers and the like.
I WILLIAM MATHESON, The Clach, Ellison Street, Hebburn-on-Tyne County
Durham England Shipyard Manager do hereby declare the nature of this
invention to be as follows:-
This invention has for its object to provide an improved fastening for ship's
hatch covers and the like with a view to move easily and efficiently securing the
hatch or other covers from shifting when in position.
The improved fastening consists of an iron steel or other metallic bracket which
In the
is secured to the coaming of hatches and the like by means of rivets.
horizontal flange of this bracket is a slot for taking a concave key or wedge and
when the hatch or other cover is in position with the batten resting on the top of
bracket the key or wedge is driven tight into the slot causing the inside of the key
or wedge to press against the hatch batten and by this means securely keeping the
hatch or other cover in position. The key or wedge has a ring in lower end to
prevent its entire removal from slot.
In order that my invention may be fully understood and readily carried into
effect I proceed to describe the drawings hereunto annexed :—
Figure 1. is an elevation of bracket, key or wedge, batten, cover & coaming.
Figure 2 is a cross section of Figure 1.
Figure 3 is a view of horizontal Hange of bracket with slot for key or wedge.
Figure 4 is a view of coaming with bracket, cover, batten and key or wedge in
position.
A representing the coaming, D the bracket B the cover C the batten E the key
o wedge F the ring in lower end of key or wedge and G the slot in horizontal
flange of bracket.
ր LA 1
LOAE
COMPLETE SPECIFICATION.
Improved Fastening for Ships' Hatch Covers and the like.
I, WILLIAM MATHESON, Ship Yard Manager, of "The Clach," Hebburn-on-
Tyne, County Durham, 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 has for its object the providing of an improved fastening for
ships' hatch covers and the like, with a view to the more easy and efficient securing
of the hatch or other covers from shifting when in position.
In order that my invention may be fully understood and readily carried into
effect I proceed to describe the drawings left with my Provisional Specification,
and also the drawing left with this, the Complete Specification:
11
Fig. 2 is a sectional view of bracket, key or wedge, batten, cover, and coaming.
Fig. 1 is a front view of Figure 2.
Fig. 3 is a view of horizontal flange of bracket with slot for key or wedge.

page_text: Fig. 4 is a view of coaming with bracket, cover, batten, and key or wedge, in
position.
Fig. 5 is a similar view to Fig. 4 with the bracket shown as a continuous
angle bar.
The fastening consists of an iron, steel or other metallic bracket, or continuous
angle bar D, rivetted or bolted, heel uppermost, on coaming A, with slot G in
horizontal flange of bracket D, or slots G spaced apart as required, in continuous
angle bar D, for concave key or wedge E; and when the hatch or other cover B
is in position with the batten C resting on the horizontal flange of bracket or
continuous angle bar D the key or wedge E is driven tight, causing the inside of the
key or wedge E to press against the batten C and the lower flange of the bracket
or continuous angle bar D, and so secure the cover B from shifting when in
position. The key or wedge E has a ring F in the lower end to prevent its entire
removal from the slot G when not in use.
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 :
The shape of the key or wedge combined with the bracket or continuous angle
bar as above described.
Dated this 4th day of September 1895.
W. MATHESON.