US1683615A - Ship's rat guard - Google Patents

Description

G. HANSEN -Spt. 11,1928. 1,683,615

sHIPs RAT GUARD Filed May 13, 1927 daszaz Hansen fizz 622502" which are now in vogue.

Patented Sept. 11, 1928 PATENT: oFF cE.

GUSTAV HANSEN, OF VICTORIA, BRITISH COLUMBIA, CANADA.

SHIP S RAT GUARD.

Application filed May 13, 1927, Serial No. 191,065, and in Canada December 16, 1926.

This invention relates to ships rat guards, such as are necessary to ntercept the passage of rats to and from ships by way of the ca les or ropes by which they are mooredto the shore. V

The object of the invention is to provide a rat guard which is more efficient because much more easily positioned and handled than other devices for the same purpose The latter being usually clumsy as well as hazardous to secure in position. and therefore time wasting.

when employed;

The device which I have invented consists of a plate more or less rectangular but preferably wedge-shaped, on the center line of and through which is secured right-angle larly thereto a saddleanember which straddles the rope or cable. The saddle member is formed of angle iron and depends materially below the rope on which the device suspended, so that the center of gravity 1s below it and therefore retains the lighter and wider portion of the device in a vertical position above the rope or cable where it is most needed to debar the passage of the rat.

The dependent portions of the angle irons above named are spaced apart about the width of the cable and the plate cut away betweenthem' thus leaving a groove for the cable as the device is slipped over it for use.

To preclude the possibility ofthe device slipping off the cable, I employ a'plvotal and adjustable slide which can be swung back out of the way for the admission of the cable and afterwards brought back into the vertical position blocking the entrance to the slot and locking the cable or rope in within the saddle member where it can be instantly locked by the turning'of a cam or other device.

The details of the invention can be better understood by reference to the drawings herewith andforming part of this applica tion, in which r Fig. 1 is a front elevation.

Fig. 2 is a sideelevation,

Fig. 3 is a front view withthe locking plate swung out to permit the admissionof the rope, and l Fig. 4 and Fig. 5 are side and front'elevations respectively of the locking 'attachment. p

Taking the drawings in detail and noting that similar numerals in the different views represent or indicate identical parts, 6 indicates the guard plate which as shown is of 15 so that it can be swung out of the way as shown in Fig. 3 when the guard is being slipped over the cable or ropeas shown in the drawing consists of an eccentric 17 rigidly secured to the bent lever 16 which fulcrums in the upturned plate 18 the latter being integral with the locking plate 13. So that as the lever 16 is turned over through an obtuse angle towards the guard plate 6 the cam is brought into firm contact with the face of the angle iron 11 thus locking the plate 13 against it in any desired vertical position permitted by the slot 15.

From the above description it will be observed that my device can readily be slipped upon a cable at the ships side and there secured, thencelowered into correct position I by a lanyard, and there remain so long as required, whereas 1n the case of the ordinary cumbersome rat guards these have to be secured upon the cable by lashing thereto at i the position required, which is often a troublesome and hazardous job.

It is to be further noted that where two cables are close together the: old form of guard cannot efticiently be employed, Where as mine offers no detriment.

Having now declared the nature of my said invention, what I claim and desire to be secured by'Letters Patent of the United States, is: i

A ships rat guard comprising, a flat plate 1 its periphery to a relatively midway posiof wedge shape having a slot extending from i right angularly turned edge, the inner surface of the said U-shaped plates being 00- incident with the edges of the said slot and the surface adjacent the right angularly turned edge of each plate being adjacent and secured to the face of the said wedge shaped plate on each side thereof and so adapted to 2 Q i: a a 1,683,615

posite to a similar recess in the end of the said slot, said lockin plate having a slot engaging and adjusta le on the pivot above 10 referred to, and locking means whereby the said plate may be secured from movement.

GUSTAV HANSEN.

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