Improved Tarpaulin Fastener.
Year: 1892

page_text: Date of Application, 30th May, 1892
Complete Specification Left, 28th, Feb., 1893-Accepted, 15th Apr., 1893
PROVISIONAL SPECIFICATION.
Improved Tarpaulin Fastener.
JOHN KNOX Ship Yard Manager 7 Dean Terrace Southwick Co. Durham do
hereby declare the nature of this invention to be as follows:-
The fastener consists of a bevilled calm placed in a cleat. The calm having
projecting spindle with square end passing through a hole in the cleat.
A lever or wrench is used to turn the calm so that the thick part of calm is
pressed against the tarpaulin batten and cleat, thus securing the tarpaulin, and by
turning the thin part of calm to batten both batten & tarpaulin is loose.
Dated this 21st day of May 1892.
COMPLETE SPECIFICATION.
Improved Tarpaulin Fastener.
1, JOHN KNOX, of 7 Dean Terrace, Southwick, Co. Durham Ship Yard
Manager 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 :-
My invention has for its object to provide an improved fastener for securing
tarpaulin coverings for hatchways and the like; whereby the tarpaulin is held
more securely in position than by the fasteners now in use.
And in order that my invention may be the better understood, I have appended
the accompanying sheet of drawings in which
Figure 1 is an elevational view of my improved cleat in position. Figure 2 is a
plan of same.
Figure 3 is a section of my improved cleat shewing the tarpaulin fastened, and
Figure 4 is a similar section of same before the tarpaulin is introduced and
fastened.
Now in accordance with my invention I provide an outer casing of steel, iron or
like metal B slightly bevelled or angled off to the right, as shewn in Figure 2.
having a hole at each end for the reception of screws for fastening same to the
hatchway. I also provide a bevelled cam c working in said outer case, and
provided at its outer end with a square headed nut, by means of which this cam c
can be worked to and fro by the aid of an ordinary box lever spanner. Upon the
outside of the casing B. I fix a circular piece of metal b. so as to guard the cam c.
against damage when shipping seas in heavy weather and the ropes or other tackle
used on board ship from coming into contact with same.
Supposing the tarpaulin D is to be fastened, the cleat proper is screwed to the
hatchway just below the hatch bar a, the tarpaulin D is then pressed between the
hatchbar and the hatchway, when the cam c is turned to the right by means of an
ordinary box, lever or spanner as far as it will go thus holding the tarpaulin more
securely than by the cleats now in use. A cleat constructed in accordance with
my invention will be found to be stronger and less liable to damage than the cleats
now in use.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed 1 declare that what I
claim is:
First The improved tarpaulin fastener substantially as above described.

page_text: Second In tarpaulin fastening devices the protective cleat B. acted upon by the
bevelled cam c whereby as herein before set forth the action of heavy seas will have
little or no effect upon the fastener device which is so arranged as not to permit of
its being easily tampered with or rendered inefficient.
Dated this 27th day of February 1893.
JAMES
STEVENSON,
20, High Holborn, London, W.C., Agent for Applicant.