US2163072A

US2163072A - Hatch tent

Info

Publication number: US2163072A
Application number: US141581A
Authority: US
Inventors: Vincent J Spelman
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-05-08
Filing date: 1937-05-08
Publication date: 1939-06-20
Anticipated expiration: 1956-06-20

Description

`une 20, 1939.

v. J. sPELMAN HATCH TENT Filed lay 8, 1937 t ATTORNEYS Patented June 20, 1939 UNITED STATES PATENT GFFQE' 3 Claims.

, The presentY invention relates to a novel and improved weather-proof cover forv hatches and more particularly to a tent adapted to cover the hatchway of a vessel during loading or unloading.

Objects and advantages of the invention will be set forth hereinafter and in part will be obvious he'refrom, or may be learned by practice with the invention, the same being realizedrand attained by means of the instrumentalities and combinations pointed out in the appended claims.

\ The invention consists'in the novel, parts, constructions, arrangements, combinations and improvements herein shown and described.

The accompanying drawing, referred to herein and constituting a part hereof, illustrates one embodiment of the invention, and together with the description, serves to explain the principles of the invention.

r Of the drawing:

Figure l is a vertical section showing an i11ustrative embodiment of the present invention and the manner `of its use; and

Figure 2 is a plan view of the embodiment shown in Figure 1.

The present invention has for its object the provision of a novel and improved weather-proof cover for the hatchway of a vessel'which is durable, offers the maximum protection to the cargo, and does not interfere with the discharge orloading of the vessel. A further object of the invention is the provision of an improved hatch tent which may be supported on the usual booms of the vessel and protects the cargo while it is being transferred from the hatch to the pier or vice versa.

In accordance with the illustrative embodiment of the invention, which is adapted for use with a cargo vessel having a conventional type of hatchway closely adjacent to which are the usual two Samson posts and their usual supported booms. The weatherproof cover or hatch tent comprises a generally prismatic structure having two side walls which converge upwardly and meet in a weather-tight ridge, and one end of the tent is closed while the other end is conveniently left open. Closely adjacent to the ridge and at the closed end of the tent is a reinforced aperture of sufficient size to receive and be largely closed by the usual cargo block which is supported on the boom, while the tent is supported by its ridge which is stretched between and made fast to the booms near their cargo blocks. The side walls and closed end are made fast to the deck so as to completely cover the hatchway, and additional aps are provided which may be let downr as required by the Weather, or may be furled to permit the winchman to see the operation of the hoisting lines. One of the lines is led through the reinforced aperture, while the line from the other boom is preferably located adjacent to the ridge at the open end of the tent, the ridge and side Walls extending over the ship side to cover a portion of the pier.

It will beV understood that the foregoing general description and the following detailed description as well are exemplary and explanatory of the invention but are not restrictive thereof.l

Referring now in detail to the illustrative lernbodiment of the invention as shown in the accompanying drawings, there is shown a conventional cargo vessel lil having a deck li and sides i2, the deck H being apertured, as at I3, to provide the usual hatchway through which the cargo may be moved to or from the lower decks of the vessel. Fore or aft of the hatchway are supported the usual Samson posts i 5 on which are mounted the booms I6 which are held 4against movement Figure 1.

I The weatherproof covering or hatch tent; of

the present invention comprises a pair of generally trapezoidal sheets 20 of weatherproof material, such as heavy canvas, which are inclined upwardly and inwardly towards each other and are securely fastened together to form a weathertight ridge 22. One end of the structure is closed by a triangular sheet 24 of weatherproof material which is joined to the sheets 20 along the lines 26, these sheets 2U and 24 forming a generally prismatic hollow structure having an open end. f

Closely adjacent to one end of the ridge 22, and preferably at the top of the triangular piece 24, is provided an aperture 28 which is reinforced with a loop of steel cable overlaid with rawhide S0, while along the bottom edge of the

sheets

20 and 24 are fastened the

flap sheets

32 and 34. Suitable ropes are provided for holding the tent down in its extended position as shown, and for this purpose the ropes 36 are grommeted into the lower edge of the

sheets

20 and 24, while the

flaps

32 and 34 are provided with another but similar series of ropes 3B. All of these ropes may be made fast to the deck 0r sides of the Vessel, as convenient, and in bad weather the flaps may be fastened down in a vertical position on the Windward side.

'Ihe tent is suitably reinforced in accordance with conventional tentmaking practice, and this reinforcement includes a strong piece of rope 40 adjacent the ridge 22 and fast thereto.

Means are provided for supporting the tent in operative position upon the booms I6, and as embodied, eyes 42 are provided short of the ends of the ridge and on its under side, to which ropes 44 may be fastened for supporting on the ends of the booms and adjacent to the cargo blocks 46. As shown, the right-hand end of the ridge is fastened immediately above its cargo block, while the left end is fastened immediately below the cargo block on the other boorn. In this position, the block 46 on the righthand boom enters into and substantially fills the vertical projection of aperture 28, while allowing free runs of the hoisting line 50, while at the other end, the cargo block hangs just beyond the open end of the ridge, and its line 52 also runs clearA of the tent. Thus, the ridge 22' is supported in tension between the booms IB, and the tent not only completely covers the hatchway I3 but also extends for a considerable portion over the sides of the vessel andpier.

In using the illustrative embodiment of the invention, with the hoisting lines and booms a1'- ranged in the manner shown in Figure 1, cargo may be removed from the hold of the lvessel through the hatchway I3 and discharged onto the pier by first attaching the bale or other package lto the hook 6I by means of the conventional sling 62. 'I'he wnchman then takes up on the hoisting line 50 to raise the package clear of the hatchway and the gunwales. 'Ihe other winchman then takes up on the line 52 and simultaneously the line 5U is payed out until the package 60 is over the .side of the vessel and above the pier, after which the line 52 is j payed out with the line 50 running free to land the package on the pier. During all of this operation, the cargo is fully protected, and bothV YWithin the scope of the accompanying claims Without departing from the principles of the invention and without sacrificing its chief advantages.

1. A hatch tent comprising a generally prismatic structure of weatherproof material having a closed end, an open end and'inclined sides meeting in a weather-tight ridge, a relatively small opening adjacent to the ridge and means for securing the ridge at its ends to booms substantially at the level of the usual blocks on said booms, said ridge being drawn taut therebetween, said opening being adapted to admit and be substantially closed by a block whereby cargo may be manipulated under cover by cables operating at the ends of the ridge in said blocks, said ca bles thus operating at all times so as to be substantially free from rubbing action on any portion of said tent.

2. A hatch tent comprising a generally prismatic structure of Weatherproof material having inclined sides and an inclined closed end, the sides and endV meeting in a weathertightridge, a relatively small opening adjacent to one end of the ridge and formed in the inclined closed end, said opening being adapted to be positioned against the boom and to receive a block near the end of the boom, and means for supporting and tensioning the ridge between two booms near the outer ends thereof, substantially at the level 430 matic structure of weatherproof material having '73"5 inclined side Walls and an inclined closed end, meeting in a'Weather-tight ridge extending from one boom to another boom, the end opposite the closed end being left open, a reinforced opening in the inclined closed end adjacent to the ridge aJ4() adapted to receive a block, and means for attaching the opposite ends of the ridge to two booms substantially at the level of the usual blocks on said booms and reinforcing means extending along said ridge between said end attaching means, whereby said ridge may be securely extended between said booms in a substantially straight line and so positioned that theV play of cables through said blocks is substantially free from rubbing action on said tent.

VINCENT J. SPELMAN.