US2959147A

US2959147A - Rat guards

Info

Publication number: US2959147A
Application number: US844659A
Authority: US
Inventors: George A Reubenstine
Original assignee: Individual
Current assignee: Individual
Priority date: 1959-10-06
Filing date: 1959-10-06
Publication date: 1960-11-08
Anticipated expiration: 1977-11-08

Description

1960 G. A. REUBENSTINE 2,959,147

RAT GUARDS Filed Oct. 6, 1959 INVENTOR. GEORGE A. REUBENSTINE FIGB AT TORNEV RAT GUARDS George A. Reubenstine, 162 Adelphi St., Brooklyn, N.Y.

Filed Oct. 6, 1959, Ser. No. 844,659 I i Claims. (or. 114-221 The present invention relates to an improved rat guard and more particularly to the type which is apphed to ships hawsers, cables and lines.

The principal object of this invention is to provide a novel and improved rat guard which is easily and etfec-.

Still a further object of this invention is to provide a.

novel and improved rat guard of the character described, which is reasonable in cost, easy to manipulate, convenient for storage when not in use and eflicient in carrying out the purpose for which it is designed.

Other objects and advantages will become apparent as this disclosure proceeds.

For one practice of this invention, its embodiment may be described as comprising a disc in upright plane provided with a downwardly opening radial notch through which the hawser lies. Sector-shaped doors positioned against one face of the disc, are swingably mounted thereon; each in normal rest position covering substantially a lower quarter of said disc and closing said notch, leaving only a hole through which the hawser is posi-' tioned fitted therein. On the upper part of said disc, there is an uprightly positioned, elongated bolt provided at its lower end with a point formation adapted to enter into and engage the hawser. Each door is linked to said bolt so that upon raising the bolt, said doors will be automatically swung upwardly and open the notch. From such position, upon release of the bolt, the doors will swing downwardly due to their response to gravity and draw the bolt downwardly. Said bolt at its upper end carries a swingably mounted handle rod which can be swung upward to substantially horizontal position for manipulation from ship side and is used to further push the bolt downward or to lift the bolt. Upon upward movement of the bolt, the doors are automatically, opened to release the guard for removal. The fall of the doors, automatically brings the bolt into engagement with the hawser. The disc and its doors may be of sheet metal properly weighted if necessary. The doors when closed, are preferably in overlapping relation.

1 will now give a detailed description of a preferred embodiment of this invention, for which I will refer to the accompanying drawing which is part of this specification. In this drawing, similar characters of reference indicate corresponding parts in all the views.

Fig. 1 is a front view of a rat guard embodying the teachings of this invention. Here the doors are open.

Fig. 2 is a side or end view of Fig. 1, showing it set on a hawser. Here, the guard is shown complete with the mentioned swingable handle rod, which is omitted in Fig. 1 to attain clarity of illustration.

ire States -half circle concentric with the disc perimeter.

i Z,959,i47 Patented Nov. 8, 1960 Fig. 4 is a fragmentary section taken at line 4-4 in V Fig. 3..

Fig. 5, drawn to a reduced scale, is a front view of another embodiment where only one door is employed. This view only shows the disc and its single door in closed position thereon. The moved position of said door is also indicated. 7

Fig. 6, also drawn to a reduced scale, is a fragmentary front view of another modification.

In the drawing, the rat guard indicatedgenerally by the numeral 15 in Fig. 1, comprises a plate or disc 16, provided along its vertical diameter with an elongated hawser-engagement bolt 17 which is slidably engaged in the channel track 18 along the upper part of said diameter, while said disc, in its lower part along said diameter, is provided with a parallel-sided, downwardly-opening notch 19, whose upper closed edge 19 is a concave This notch is for holding the hawser 20 therethrough. The

numerals

21, 22 indicate flat sector-shaped doors which are swingably mounted to said disc at 23 and 24 respectively and preferably lie against one surface of such disc.

At normal rest position, said doors overlap each other and cover the notch 19, except for the hole formed by end 17 which imbeds itself into the hawser body. Such normal rest condition ofpsaid components is illustrated in Fig. 3. Since it is required that upon raising the bolt 17,'that the

doors

21, 22 shall swing upwardly to their position shown in Fig. 1, said doors are linked to the bolt by either the

flexible cables

23, 24 or the rigid links 23', 24 respectively.

Stops

25,26 are secured on the disc 16, to limit the upward movement of the

doors

21, 22. 'At the top of the bolt 17, a handle rod 27 is swingably linked, and has attached thereto the rope 28, whose free end is accessible aboard ship so that the handle rod 27 can be raised for manipulation from aboard ship. In normal rest position, said handle rod hangs downward.

The rat guardis applied onto the hawser 20, from aboard ship. Holding handle 27 in hand, the fiat clear surface 16' of the disc plate 16 faces the land and the disc assumes vertical position. The weight of the disc causes it to fall until the

doors

21, 22 are halted by the

stops

25, 26 respectively. The notch 19 is now clear, so the rat guard is moved to receive the hawser 20 therein. The above described condition is shown in Fig. 1. Now, handle 27 is moved downward after the disc has come to rest on the hawser. The weight of the doors will cause them to swing downward to closed position, pulling the bolt 17 downward into engagement with the hawser 20. The handle 27 is then moved to further push the bolts engagement point 17 deeper into the hawser; the handle 'being directly connected to said bolt 17. The rat guard is now mounted as shown in Fig. 3. The handle 27 is let to fall, but the rope 28 attached thereto is secured aboard ship so that the handle 27 can be lifted for manipulation to release the rat guard for removal, when desired. It is suggested that the meeting edges of the doors shall be in overlapped relation as at 29 when in closed position.

As a modified embodiment, as shown in part in Fig. 5, all of Fig. 1 shall be deemed included, except that only one door 30 is employed in place of the

twin doors

21, 22, and hence

elements

23 and 25 are also omitted. Here in Fig. 5, the single door 30 is of sufiicient dimension to cover and retracts to position 30 to be in open position. 1

headed axisv element.33,which.is pinnedtosaid; bolt at 34. The track 18' is;provided withaslanted slot;31, in which slidably, fitsthe pin 35; the.. latter.extendinglaterally from said bolt 30. The length of this slot isvs ueh' that upon downward 1 movement of the. bolt 30, such bolt would be givena part turn, to-drill itself. into; the.

hawser 20. This feature can beused in thediiferent embodimentsshown in the drawing.

The rat guards shown may be hung up .when not inuse, for which purpose-the hole 31 isprovided imthe disc 16. The disc and doors may be of sheetmetahiplate.

or other suitable materials.

This invention is capableof numerous forms and various applications without departing from the essential features herein disclosed. It is therefore intended and desired that the embodiments shown herein shall be deemed merely illustrative and not restrictive and that the patent shallcover all patentable novelty herein set forth; reference being had .to the following claims rather than to the specific description herein to indicate the scope of this invention.

I claim:

1. In a rat guard of the character described, a main plate member having an elongated notch to receive a hawser therethrough to lie against the closed end of said notch, a hawser-engaging bolt sl-idably mounted on said main plate member, normally in position to engage the hawser, door structure swingably mounted on the main plate member, normally in position to substantially cover all of said notch which is unoccupied by the hawser and means linking said bolt and door structure whereby on movement of said bolt away from the hawserposition through said notch, the door structure will be automatically swung to a position to uncover the notch.

2. A rat guardas defined'in claim 1, wherein the door structure is a plate against the main plate member and wherein the means linking said door plate to the bolt is an elongated pliable member which is secured at its respective ends to said bolt and door plate.

3. A rat guard as defined in claim 1, wherein the door structure is a plate against the main plate member and wherein the means linking said door plate to the bolt is a rigid link pivotally attachedyat its respective ends to said bolt and door plate.

4. A rat guard as defined in claim 1, wherein the door structure comprises two plates positioned against the main plate member, one to each side of the notch respectively and wherein the linking means comprises two elongated pliable members secured at one of their respective ends to the bolt and at their other ends to said door plates respectively;

5. A rat guard as defined in claim 1, wherein the door structure comprises two plates positioned against the main plate member, one to each side of the notch respectively and wherein thelinking means comprises two links secured atom of their respective ends to the bolt in pivotal relation therewith and pivotally secured at their other ends to said door plates respectively.

6. A rat guard as defined in claim 1, wherein the door structure comprises two plates positioned against the main plate member; the edge portion of one of the door plates which is over the notch in the normal condition of theratguard, being elf-set from the planeof the door plate itis-on, whereby in said normal condition,

said door plates overlap across the notch in the main .1

plate member.

7. A rat guard as defined in claim 1, wherein the bolt 7 bolt will be automatically given a rotary movement; the

position andlength of said slot being such that such rotary. movement of the bolt occurs when the bolt is sliding and is in the space occupied by the hawser through the notch in the main plate member.

8. A rat guard as defined in claim 1, including an elongatedrigid handle member pivotally connected to the bolt.

9. A ratguard as defined in claim 1, wherein the bolt, the door structure and the linking means therefor are at one surface of the main plate member.

10. A rat guard as defined in claim 1, wherein the axis of swing of'the door structure is perpendicular to the mainv plate, member.

No references cited.