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SW. 13, 1938. ‘ IJLYTUTIN ‘ 2,129,913 ' SHIP’S HATCH COVER Filed Feb. 16, 1937 5 Sheets-Sheet 1 Sept. 13, 1938. ' - J, TUTlN SHIP’S HATCH COVE‘R Filed Feb. 16, 1957 I! 1a. 3’ w 2,129,973 z 39 2a. 1 3d’ 5-Sh_eets-Sheet 2 Sept, 13; 1938. J. TUTIN ‘ 2,129,973 SHIP’S HATCH COVER v Filed Feb. 16, 1937 kwM“WK“MWWMQH . 11|\ 5 Sheets-Sheet 5 Sept 13, _]_ TUTlN 29,973 , SHIP ’ S HATCH COVER Filed Feb. 16, 1937 5 sheetsl-sheet 4 ' Sept. 13, 1938. _ J. TUTlN - 2,129,973 I I 'SHIP’S HATCH COVER ' Filed Feb. 16, 1937 37%5w 5 Sheets-Sheet 5 'IH I , J vi" .2; $7 JJHJeWfO Patented Sept. 13, 1938 2,129,973 UNITED‘ STATES PATENT OFFICE ’ 2,1 29,97 3 smr’s HATCH COVER John Tutin, London, England Application February 1 6, 1937, Serial No. 126,066 In Great Britain February 22, 1936 3 Claims. (Cl. 114—202) bulbous portions thereon constitute track rails for the lifting jacks. This invention relates to ships’ hatch covers. Its principal object is to provide improved means whereby covers or cover-sections of considerable weight can be readily manipulated by hand power. 5 More speci?cally, the object of the invention is to provide means enabling heavy covers or cover-sections to be lifted from the hatch, trans ported to a stowage space and rotated into an edge-upwards position for stowage when not in . use and these operations to be performed in the reverse order all expeditiously and with a mini mum of manual labour. With these objects in view the invention pro vides the combination of a ship’s hatchway cover 15 having at each of two opposite sides thereof, or of two opposite sides of each section of a sec tional cover, a jack-connecting part, which jack connecting parts are coaxially arranged and are disposed so that their axes lie at approximately the same level as the center of gravity of the cover or cover-section, and two travelling removable and portable lifting jacks (for example screw jacks) having lifting members and cover connecting parts thereon for interengagement 25 with the jack-connecting parts on the cover, or on all the cover-sections successively, the inter engaging connecting parts being adapted to per mit rotation of the cover, or cover-section, into an edge-upwards position about their common 30 axis. Preferably said interengaging connecting parts are in the form of lateral projections in the form of spindles on the cover, or cover-sections, and bearings or sockets on the lifting pillars of 35 I the jacks but any other convenient construction may be employed. For example,_ there may be projections on said lifting pillars adapted to en ter hearings or sockets on the cover or cover 4O sections. The said projections and bearings or sockets may be formed integrally with the parts by which they are carried, or be secured theretov (for example by welding) or they may be remov ably mounted thereon. Two stowage rails are arranged each in spaced parallel relation with one of the track rails at the stowage space alongside which the track rails extend; the spindles, while situated in said bear ings, have parts adapted to rest on and be sup ported by the stowage rails when the cover mem bers have been transported by the lifting jacks along the track rails to the stowage space. According to a feature of the invention, bulb ' In the case of sectional covers, it is preferred to provide a gutter between adjacent cover-sec tions. . One embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings in which: Figures 1 and la show in side elevation a hatch with a sectional cover in position thereon, ' Figures 2 and 2a show a plan thereof, Figure 3 is a sectional elevation on the line 3—3 of Figure 2 but drawn to a larger scale, Figure 4 is a section on the line 4—4 of Fig ure 8, Figure 5 is a side elevation drawn to a still larger scale showing one of the lifting jacks ap plied to a cover-section ready to lift the same, Figure 6 is a side elevation showing the lifting jack and the cover-section in positions which they occupy when the latter has been carried to the stowage space and turned edge-upwards, and Figure '7 is a detail view showing a modi?ca— tion hereinafter referred to. Like reference numerals indicate like parts. 25 throughout. On the drawings the invention is shown applied to a weather deck hatchway of a cargo tramp steamer, only so much of the deck l0 being shown as is necessary to illustrate the invention. 30 The hatchway II is situated between a deck house I2 and a mast l3. Winches for manipu lating the cargo are disposed between the mast and the hatch. The hatch coaming comprises side bulb plates 15 and end bulb plates I6. At a 35 distance below the level of the top of the coaming su?icient to permit the lifting jacks hereinafter described to be applied to the cover-sections, side bulb angle coaming stiffeners I‘! are provided. These stiffeners are arranged with the bulbous 40 portions I8 upwards, see Figure 4, for a purpose to be later explained. A similar coaming stiffener I9 is provided along the forward end of the hatch coaming. Between the deckhouse l2 and the hatch is a stowage space 20 in which the cover4 sections of the hatch are stowed edge-upwards when removed from the hatch. The side coaming stiffeners I‘! are continued past the hatch end adjacent the deckhouse for the extent of the stowage space 20 where each is surmounted by a plate structure 2i having a bulb plate top 22 constituting a stowage rail to support stowed coaming stiffeners are ?xed to the sides of the cover-sections in the manner hereinafter ex plained. The hatch cover consists of a number hatchway coaming and are arranged so thatthe of steel sections 23 to 29 inclusive placed athwart 2 2,129,973 - ships across the hatchway. The fore and aft widths of the cover-sections 23 to 28 are the same and the half-width of each of these sec tions is approximately equal to the height of the hatch coaming. The forward cover-section 29 is approximately half the fore and aft width of the hatch cover-sections is as follows:—-The clamp ing or wedging devices, if provided, are ?rst re leased and then the crutches 42 of the screw jacks are slipped on the spindles 38 of the cover section 23 and secured by the screw clamps 43. The cover-section is then raised from its seating other sections to facilitate its being turned edge on the hatch coaming by turning the jack hand upwards in the minimum space available when the sections 23 to 28 have been stowed in the wheel 44 of each jack. When the cover-section has been raised sufficiently, say about 2 inches from the top of the hatch coamings, the pair of 10 stowage space 20. Each of the cover-sections is of hollow form jacks and the cover-section they jointly support and comprises a top plate 30, see Figures 3 and 4, 1 are rolled along the tracks Hi to a position beyond and girder angles 3|, 32 and 33 to which the the hatch end over the stowage space 20. In top plate is welded. The angles 3|, 32 lie longi this position the screw clamps 43 are freed and the cover-section is swung in the jacks through 15 tudinally of the cover-section, i. e. across the hatch, and the angles 33 lie transversely of the 90° to a vertical position. The cover-section is cover-section, i. e. lengthwise vof the hatch. .All then lowered by turning the jack hand wheels these girder angles are disposed with one ?ange 44 until its spindles 38 rest upon the bulb plate edge-upwards so as to permit the bottom faces tops 22 of the plate structure 2| at the stowage 20 of the other ?anges to rest on rubber strips 34 space, as shown in chain lines in Figure 1, after 20 which are interposed between the girder angles which the jacks are removed and run back along and the upper bulbous ends of the coaming plates , the tracks l8 to handle successive covers in a IS, IS so as to provide a watertight joint. The similar way. In Figure 3 it is assumed that the cover-sections 23 to 28 are also provided each 25 with an intermediate sti?ening girder 35 disposed between and parallel to the girder angles 3!, 32. The girder angles 3| of the cover-sections 23 to 28 face inwards and the girder angles 32 of all the cover-sections face outwards. An edge bar 36 is weldled to the edge of the bottom limb of each of the girder angles 32 so as to provide a gutter 50 between it and the upstanding limb of the angle and a rubber sealing strip 37 secured to the edge bar 36 is provided between the latter and the adjacent girder angle 3| to provide a watertight joint between the adjacent cover-sec tions. cover-sections 23 to 2'! have been removed and stowed and one of the jacks is shown in dotted 25 lines in position to raise and remove the next cover-section 28. Should it be desired, for example during rainy weather, to uncover only a portion of a large hatchway, say the portion covered by the cover~ 30 sections 25 and 26, then the cover-sections 23 and 24 may be removed and stowed and cover-sections 25 and 26 be raised, transported and lowered into the positions formerly occupied by cover-sec tions 23 and 24. 35 In the modi?cation shown in Figure 7, the top plates 30 of adjacent cover-sections are provided along adjacent longitudinal edges with depend The cover-sections may be held in place by any suitable clamping or wedging devices which as they form no part of the present invention are ing ?anges 41. Each of these ?anges is welded to not shown on the accompanying drawings. is so disposed that said limb will rest on the warm ‘ Two travelling removable and portable lifting screw jacks one only of which is seen in Figures 5 and 6, are provided for removing, stowing and Each cover-section has projecting laterally from each end a hollow spindle 38 supported by a bracket 39 on the girder angles 33. The spindles 38 of each cover-section ' ' replacing the cover-sections. are coaxial with one another and approximately in line with the centre of gravity of the cover section. The two lifting jacks are applied to these two spindles respectively and are in charge of two men, one on each side of the hatchway. The lifting jacks are identical so that a de scription of one will su?ice for both. Each jack is mounted upon a pair of wheels I39 adapted to travel along the tracks provided by the bulbous portions l8 of the side coaming stiffeners H. The jack body 40 is disposed between the wheels I39 the inner face of one limb of an angle 48 which 40 ing and the other limb 49 will lie adjacent the corresponding limb of the other angle. The rub ber sealing strip 31 is secured to one of the ad jacent angle limbs 49. The plate ?anges 41 are 45 welded to the angles 48 at such positions as to provide gutters 50 between them and the angle limbs 49. The angles 48 may be bulb angles as shown, or plain angles, or alternatively chan nels may be employed. In the latter case, the 50 bottom of the channel will rest on the coaming and the gutter will be formed between the plate ?ange and one side of the channel. In the construction described above, a stowage space 20 is provided at one end only of the hatch, 55 There may be a stowage space at each end of the and mounted therein is an externally screw hatch to permit some of the cover-sections to be stowed at one end and others at the other end. Alternatively, when the cover-sections are dis posed with their longitudinal edges fore and aft 60 threaded lifting pillar 4| having at its upper of the deck, provision may be made for stowing end a hollow crutch 42 adapted to engage the them at one or both sides of the hatch. corresponding spindle 38 of the cover-section to case, the tracks for the lifting jacks will be pro vided at the ends of the hatch. Further, the provision of a stowage space pro~ 65 vided with supports, such as the aforesaid rails 22, for the spindles 38 of the cover-sections, is not essential to the invention. The said spindles may be used only for lifting and- lowering the cover-sections and for moving them within the 70 boundary of the hatchway, for example to a posi tion whence they can be removed by a derrick for stowage flat on the deck. Alternatively, the cover-sections may be turned be manipulated. A screw clamp 43 is provided for securing the spindle and crutch together. The lifting pillar 4| is arranged to be raised and low ered by means of a hand wheel 44 which has ?xed to its axle a bevel wheel 45, see Figure 5. Said bevel wheel meshes with a hollow bevel 70 Wheel 46 which is constrained against movement in the direction of its axis. Said latter bevel wheel is rotatably mounted on the lifting pillar 4! so that by turning the hand wheel 44, the lifting pillar can be raised or lowered, The operation of removing and stowing the 75 In this edge-upwards in the jacks when removed to the 75‘ 2,129,973 stowage space and then be lowered in said jacks until the bottom edge rests on the deck, and then be tilted so that they lean against a support, for example the wall of the deck-house l2. Any convenient means may be provided for Or preventing any substantial endwise and/or side wise movement of the cover or cover-sections on the hatch due to pitching and/or rolling of the ship. For example there may be provided de 10 pending flanges on the cover or cover-sections arranged to lie inside the hatch coaming. In the construction shown on the drawings, ?anges 5| are provided on the ends of the cover-sections for preventing endwise movement of the cover sections individually, and a ?ange 52 is provided on the outer longitudinal side of the cover-sec tions 23 and 29 (only the ?ange 52 on the cover~ section 29 is shown on the drawings) for pre venting fore and aft movement of the cover as a 20 whole. It will be evident that the invention provides means whereby heavy steel covers can be re moved and replaced with ease and rapidity with out the provision of derricks and winches. In the appended claims the term “cover mem ber” is intended to include both a one-piece cover for a smaller hatchway and any one of a num ber of independent cover-sections of a sectional cover which when arranged side by side constitute a cover for a larger hatchway. I claim:— 1. Apparatus for lifting ship’s hatchway cover members from the hatch and transporting them to a stowage space comprising a cover member, 3 two coaxial jack-connecting parts on opposite sides of the cover member, two travelling remov able and portable lifting jacks each having two track wheels, a lifting pillar, and a cover-con necting part on the pillar adapted to engage a said jack-connecting part on the cover member, and two track rails lying at opposite sides of the hatch and extending alongside the stowage space, one track rail for each lifting jack, in combina tion with two stowage rails arranged each in 10 spaced parallel relation with one of the track rails at the stowage space, which jack-connecting parts are constituted by spindles projecting lat erally from the cover member, and which cover connecting parts are constituted by bearings each for receiving a said spindle adapted to rotate therein, which spindles, while situated in said bearings, have parts adapted to rest on and be supported by said stowage rails. 2. Apparatus for lifting ship’s hatchway cover 20 members as set forth in claim 1, wherein the axis of rotation of said spindles extends through the cover member and lies close to the center of gravity thereof, and each track rail is constituted by the bulbous portion of a bulb coaming sti?ener 25 ?xed one at each side of the hatchway coaming and extending alongside the stowage space. 3. Apparatus for lifting ship’s hatchway cover members as set forth in claim 1, wherein the track rails are situated on the side of the hatch way coaming above the deck level, and the stow age rails lie a short distance above the level of the track rails. JOHN TUTIN.