US2511268A

US2511268A - Bulkhead door and the like and fastening means for same

Info

Publication number: US2511268A
Application number: US667092A
Authority: US
Inventors: Karl L Schiff
Original assignee: Budd Co
Current assignee: ThyssenKrupp Budd Co
Priority date: 1946-05-03
Filing date: 1946-05-03
Publication date: 1950-06-13
Anticipated expiration: 1967-06-13

Description

June 13, 1950 K. L. SCHIFF 2,511,268

BULKHEAD DOOR AND THE LIKE AND FASTENING MEANS FOR SAME Filed May 3, 1946 INVENTOR Karl sckh l I BYZ a u' A TTORNE Y Patented June 13, 1950 BULKHEAD DOOR AND HE LIKE AND FASTENING ,MEAN S FOR SAME Kai-11L. Schifli, Philadelphia, Pa., assignor. to. The

Budd Company, A Bhilaclelphia. Pa, a corporation of Pennsylvania Application May 3; 1946, SeriaiNo. 667,092

'7 Claims. (01. 114-117) hatches, scuttles or covers especially for closing fiuidtightly the bulkheads, hatchways and the like of ships, airplanes and other structures.

More particularly, theinventionrelates in part to an improvement of the mechanism and the ar rangement thereof forming the-subject matter of the application Serial No. 621,322, of Ellis L. Jacob, filed October 9, 1945, for-Q.uick operating door.

The main object of the invention is a door; batch or the like construction in which. the entire or practically the entire operating and closing mechanism is carried by the stationary door frame and is under normal conditions removed from outside influence, such as Weather, sand, dust and water.

The aforesaid and other objects and advantages are achieved mainly by combining the arrangement of the dogs for clamping the door or the 2 like shut and the lever-and-rod system for oper-v ating the dogs on the frame'of the door or the like opening, the door or the like carrying only the wedges to be engaged by thedogs, and the arrangement of the lever-and-rod system for operating the dogs in the interior of the structure tobe closed with the arrangement of the dogs likewise on the inside where they engage undercut portions, provided with the Wedges, of the door or the like.

The invention and its advantageswill be more easily understood from the embodiments illustrated in the attached. drawing and described in the following:

In the drawing:

Figure 1 is a small-scale inside elevation of a hatch in closed position, of the surrounding frame and adjoining portion of a bulkhead or the like;

Figures 2 and'3 are fragmentary sections along lines 2--2 and 3--3 respectively of Figure 1 on a larger scale;

Figure 4 is a fragmentary section similar to Figure 3' illustrating diagrammatically another embodiment; and

Figure 5 is a fragmentary sectional view taken along line 5-5 of Figure 4.

A bulkhead or the like ID of a ship or other structure-has its margin around an openingreinforced by an angle-section frame ll having its one wide arm 12 in overlapping relation with the. margin of and welded to the wall While the other arm [3 projects toward the outside. Supported on the frame H by hinges I4 is the door or hatch l5 which comprises a main panel l6 and marginal rails I1 and t8, the latter holding a 2 sealing strip 19. When the door is closed, the outer margin of frame arm I3 pressesagainst the inner surface of the-sealing strip- |.9.and provides for fluid.- andgas-tight seal.

Secured to the inside and near the margin of the hatch are, in Figures 1. toByhousingor boxlike. structures 2E]. having walls 2| adjoining and extending transversely to panel It. and having an. end wall22. extending parallel to and-at adise tame from [panel IE The open. side of each stru ture 2li:fa esoutwardly away from the cen! er of. the, hatch.

The members constitut ng. thehatch consist. of sheet tal, or instance. ordinary arbon sheet steel, or high-tensile material such as chromium nickel stainlesssteel, and arepreferably-oonnegt, ed with each other by electric spot or seam weld i g in the eions i r ap. Hind-.133. flliQIlW din respectively, as indicated at difierent places in the drawing.

Wedges '23, are, riveted, in Figures 1 to .3, to the end walls, 22 in the interior of the-box structures 20. One of these box structures and of the Wedges; is arranged at each-of the four corners of the hatch, but more will be distributed at about equal distances, from each other and from the corners, along the sides of larger doors. For closing the hatch, the wedges 23 are engaged by (

logs

24, 25 rotatably supported by the, door frame Opposite the. location of all but one of the wedges 231a bracket 26 is welded to the inside of arm I2. of the door frame i I and is provided with a bearing pin or shaft 21 screw threaded on its inner end 23. Rotatably supported by the members .26, '21,,a bushing and Washers 29, 3ii, and a nut 3| screwed on the portion 28, is a hub 32 which, is, connected with

operating levers

33, 34 and a dog 24. In theclosed position, illustrated in Figures 1 to 3, the dog extends through the open side of the adjacent box structure 20 and engages the wedge 23 therein.

Opposite the location of the one remainingwedge 23, a hollow bushing or tube 36 extends through a hole in arm 12 of the, door frame II and is welded in the, hoie. A shaft, 31 is journalled in the bushing or sleeve 36 by means of bushings 38, a fluid seal 39, and washers '40. The outer end of'the shaft 31 is permanently connected or forms one piece with an operating handle 4i provided with a shoulder 42 which restsagainst the outer washers 40, while the innerend of shaft 31 has a square-section portion 43 and a screw threaded portion 44 over which fits the interiorly correspondingly shaped portion 45 integral with 3 dog 25, inner operating handle 46, and lever 41. The unit 45 to 41 is held in place by a nut 48.

The ends of the

levers

33, 34 and 41 are journalled to and interconnected by four rods or links 49 and by bolts, washers and nuts 50. lZhe arrangement is such that upon movement of one or both of the

operating handles

41, 46 about the axis of their shaft 31 all

dogs

24, 25 will be swung by means of the rods 49 and the

levers

33, 34, 31 either into the locking position in which they engage the wedges 23 and point toward the center of the door, that is, into the position shown in the drawing, or into the open position. In the open position not only the dogs but the entire lever-and-rod system is outside the confines of the door opening, as is clearly apparent.

For the purpose of holding the entire locking mechanism in the open position, the lever 41 is provided with a spring biased plunger 51 engaging the outer surface of the bushing 36 which is provided with a deep recess (not shown) into which the plunger i is pressed when the lever 41 has reached the open position and from which it can be removed only by applying a considerable amount of force on one or both of the levers M, 46 in the closing direction.

It is obvious that the door can be opened or closed, respectively, by swinging one of the levers 4| or 46 about an angle of approximately 90 and that in the open position no member of the operating mechanism or of the door projects into the door opening. It is further obvious that the door can be extremely light because it does not have to carry the operating mechanism.

For the embodiment diagrammatically illustrated in Figures 4 and 5 the same reference numerals are used for corresponding parts. In this embodiment, the door rail I1 has a wide web 52 provided adjacent the inner arm with a slot 53 at the location of each dog 2-1. The wedges 23 are secured to the underside of the rail arm 54. The slot 53 is of sufficient width and length to permit, the free movement of the dog 24 into and out of engagement with the wedge 23. On both sides of the location of each wedge and the appertaining opening 53 the door structure is advantageously reinforced by webs 55 welded or otherwise secured to the web 52 and flange 22 of the door rail I1 and to the adjoining portion of the door panel I6.

While for the second embodiment only the construction at the location of one of the dogs is illustrated, it is obvious that it will be connected with other dogs, operating handles, etc., in similar manner as shown in Figures 1 to 3.

In both embodiments, the inner operating handle may be connected with the inner dog, but at this location the dog may also be located on the outside and engage a wedge secured to the outside of the door, as disclosed in the aforementioned application because penetration of the wall by the operating shaft connected to the outer handle is necessary anyhow.

Only the main elements of the door which have a bearing on the present invention are illustrated in detail in the drawing and described in the foregoing. It is obvious, however, that the door will be provided with such accessories as are customary or may be desired.

The invention is not restricted to the illustrated embodiments but is susceptible to modifications which will occur to those skilled in the art and are covered by the spirit and the language of the attached claims.

What is claimed is:

1. A closure structure comprising: a wall such as a bulkhead, said wall defining an opening; and a cover such as a hatch for the opening adapted for movement toward and into overlapping engagement with the one side of said wall; a plurality of movable dogs and common operating means for same arranged on and supported by the other side of said wall; said cover having a main panel and an angle-section marginal rail on the side of the cover engaging the wall, said rail having one arm extending transversely to and a second arm spaced from and generally parallel to said main panel, the surface of said second arm facing the main panel being arranged and constructed for engagement by said dogs to releasably hold the cover against said wall.

2. In a closure structure comprising a wall such as a bulkhead around an opening, a cover such as a hatch adapted for closing said opening by movement toward and into overlapping engagement with the one side of said wall, a plurality of movable dogs and of common operating means for same secured to and arranged on the other side of said Wall, said cover having a main panel and an angle-section marginal rail connected with said panel on the side of said cover engaging the wall, said rail having one arm extending transversely to and a second arm spaced from and generally parallel to said main panel, said second arm extending from said first arm in the direction of the center of the cover, openings in said first arm opposite the location of said dogs permitting movement of the latter therethrough into and out of engagement with means provided on the surface of said second arm facing the main panel to releasably hold the cover against said wall.

3. In a closure structure comprising a wall such as a bulkhead around an opening, a cover such as a hatch for the opening adapted for movement into overlapping engagement with the one side of said wall, a plurality of movable dogs, and supports therefor and common operating means for said dogs arranged on the other side of said wall, said cover having a main panel, means for engagement with said dogs at the location of said dogs on said cover on the side engaging the wall, said last means having a web extending transversely and secured to said main panel and having an arm on said web spaced from and generally parallel to said main panel, said web having an opening for movement of the respective dog therethrough into engagement with the surface of said arm facing the main panel to releasably hold the cover against said wall.

4. In a closure structure comprising a wall around an opening and a cover for the latter marginally overlapping the one side of said wall, a plurality of movable dogs mounted on the other side of said wall and means on said cover on the side engaging the wall arranged and constructed for engagement by said dogs to releasably hold the cover against said wall.

5. A cover for a bulkhead opening provided on one side with peripheral means formed for engagement with margins of said opening, said cover having a main panel and an angle section rail paralleling the periphery of the cover and being spaced from said periphery by said engaging peripheral means, said rail having one arm extending transversely to and a second arm spaced from and generally parallel to said main panel, the surface of said second arm which faceg the main panel being provided at a plurality of locations distributed over the periphery of the door with means for the engagement by fastening dogs carried by a bulkhead for releasably holding the cover with its peripheral means against the margins of said bulkhead opening.

6. A cover for a bulkhead opening provided on one side with peripheral means formed for engagement with margins of said opening, said cover having a main panel and an angle section rail paralleling the periphery of the cover and being spaced from said periphery by said engaging peripheral means, said rail having one arm extending transversely to and a second arm spaced from and generally parallel to said main panel, said second arm extending from said first arm toward the center of the cover, the surface of said second arm which faces the main panel being provided at a plurality of locations distributed over the periphery of the door with means for the engagement by fastening dogs carried by a bulkhead for releasably holding the cover with its peripheral means against the margins of said bulkhead opening, and said first arm being provided at the same locations with open ings permitting movement of said dogs there-' through.

7. A cover for a bulkhead opening provided on one side with peripheral means formed for engagement with the margins of such opening, said cover having a main panel and a plurality of second means at locations near and located at spaced points along the periphery of the cover, said second means having a web extending transversely and secured to said main panel and having an arm on said web spaced from and generally parallel to said main panel, said web providing for an opening permitting therethrough the movement of fastening dogs carried by a bulkhead and the dogs engagement with the surface of said second arm facing the main panel to releasably hold said cover with its peripheral means against the margins of the bulkhead opening.

KARL L. SCI-EFF.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 797,768 Fisher Aug. 22, 1905 1,953,737 Zimmer Apr. 3, 1934 2,179,495 Court et a1 Nov. 14, 1939 2,383,435 Jacob Aug. 21, 1945