US2037114A - Hatch construction - Google Patents

Description

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HATCH CONSTRUCTION Filed Feb. 8, 1955 2 Sheets-Sheet 2 Y /A/VENTOQ:

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Patented Apr. 14, 1936 UNITED STATES HATCH CONSTRUCTION Charles David Bonsall, Pittsburgh, Pa., assignor to P."H. Murphy Company, New Kensington, Pa., a corporation of Pennsylvania Application February 8, 1935, Serial No. 5,621

14 Claims.

My invention relates to the hatchway construction of a refrigerator car. Its principal object is to devise a construction wherein the hatch opening is provided with a metal lining which cooperates with upturned flanges of the roof sheet to constitute a support for the upper hopper member and wherein the danger of leakage at their connection is eliminated. The invention consists in the parts and in the combinations and arrangements of parts hereinafter described and claimed. l

In the accompanying drawings, which form part of this specication, and wherein like symbols refer to `like parts'wherever they occur,

Fig. 1 is a plan View of the end portion of a refrigerator car embodying my invention,

Fig. 2Vis a vertical partial cross-section thereof on the line 2 2 of Fig. l,

Fig; 3 is a vertical partial longitudinal section on the line 3--3 of Fig. 1,

Fig. 4 is a detail view through Vthe hinge of thehatch cover on the line 4-4 of Fig. l,

Fig. 5 is an enlarged view of a portion of the hatch sheet blank showing the for-m of the hole punchedtherein preparatory to bending up the side flanges thereof to form the hatch hole,

Fig. 6 is a detail View of thevround corner piece,

Fig. 7 isr a detail View showingvthe hatch sheet with hatch hole anges turned up and with one round corner open and another round corner closed with a corner piece,

Fig. 8 is a detail vertical sectional view through the body of the hatch sheet and showing in elevation, the corner Vpiece welded to the side flange and to the body ofv said hatch sheet, ,and

Figs. 9, 10 and 11 areqrviews similar to Fig. 3, illustrating threemodiiied forms of hatch construction. v

The rcar roof illustr Vted in the accompanying drawings comprises sheets I that span from side plate 2 to side plate 2 Yof the car and have their ends rigidly secured to such side plates. `The side margins of the sheets have upstanding flanges 3 Vand these flanges are straddled by seam caps 4, which are secured to said flanges and to the side plates of the car, as .by rivets 5.

The car is provided with suitable insulation 6. In the construction illustrated, there .are metal subcarlines I which are supported by the sideplates of the car. Upon these subcarlines are supported wood fillers 3 Whose upper surface has a pitch conforming to the pitch of the roof. Suitable insulating vlining 9 is suspended from the subcarlines,

The endmost roof sheet, hereinafterL referred to as the hatch sheet, has one or two hatchways which leadinto the ice bunker of the car. The hatchway opening is defined by a framework, which, in the construction illustrated in Figs. 2 and 3, comprises metalV angle-shaped carline 55 members I@ that extend from side plate to side plate with their ends rigidly secured thereto and themselvesV supporting longitudinally disposed angle members II secured to and flush with the tops of said carline members by means of angle '1o brackets I2 riveted or otherwise fastened to said angle members and said carline members respectively. Opposite the lower part of the hatchways are metal subcarlines I3 of angular section with their ends secured to'brackets I4 fixed to 51'5 the si'deplates. Y

According to the present invention, each hatchway has a sheet metal lining I5 that constitutes anupward extension of the lining of the bunker thatis common to the two hatchwaysfzo Each hatch lining I5 extends upwardly above the general level of the roof sheet and downwardly below the level of the insulating ceiling lining 9 `of the car. The bottom margin of the Vhatch lining I5 is'riveted or welded to a downwardly 25 flanged metal flashing member I'I secured to the insulating ceiling lining 9. The top margin of the hatchl liner I5 is secured to an upstanding flange I 8provided therefor on the hatch sheet along the margin of the hatchway opening.` In 30 the construction illustrated in Figs. 2 and 3, there is a hopper member I9 which is located inside of the liner I5 and extends from a point above the top of the sheetflange I8 downwardly below the main surface of the roof. The portion of the A35 hopper member I9 below the main surface of the roof has its sides converging to constitute a seat for a wooden plug 2U of the type commonly used. The top end of the hatch lining I5 is substantially flush with the top edge of the upstanding 40 flange I8 around the margin of the opening in the hatch sheet, and the liner, sheet flange and .hopper are secured together by rivets, welds .or otherwise. I prefer to secure them together by means of a weld 2l of metal added continuously 45 on the top edges of the liner I5 and the sheet flange I8 and against the body of the hopper I9. I prefer alsor to make the liner I5 and the hopper member t9 of stainless steel and to make the weld 2i alsc'of stainless steel. The upper margin of 5o the hopper member is pressed to form a flange 22 that extends laterally outwardly and thence downwardly to reinforce said member and afford suitable' support for the ice in the course of load- According to my invention, the hatchway opening is made with rounded corners. For this purpose, the hole 23 cut in the hatch sheet is of the shape of a rectangle with quadrantal or segmental extensions 23a at its respective corners (see Fig. 5). The sides of the rectangular portion of such hole are bent up along lines that connect the ends of th-ercorner arcs to which they are substantially tangential, thus forming side flanges 24 this arrangement leaves a gap at each corner between the ends of adjacent side flanges 24 and each of these gaps is closed by a small oblong piece 25 of sheet metal bent conformably to the curve of the rounded corner of the hole and soldered or welded to the body and flanges of the hatch sheet to form the upstanding flange I8. Y l d y A suitable door or cover 26 is Aprovided for the hatch, which cover is preferably hinged to a suitable part of the roof structure. In the construc- 'tion'illustrated each 'hatch' cover has two T- shaped strap hinges 21, their long strap leaves being secured tothe hatch cover and the shorter and wider leaves being riveted or welded tothe side Vof the upstanding roof seam.

The construction illustrated in Fig. 9 is similar to that shown in Fig. 3 except that the angle bars VIlla and Ila that dene the hatchway opening 'are of oblique angle section arranged with their sides converging downwardly and the lining V15a is'forrned with downwardly converging sides that rest ilatwise against inclined'sides of the hatchway frame thus formed. vIn this construction, `the hatchway sheet rests on the horizontal flanges of the hatchway frame and the hopper member IBa rests against the converging por- "tio'n of theliner, which, in turn, receives support from the converging sides of said frame.

f In the construction illustrated in Fig. 10, the

hopper member |9b is wholly above the general level ofthe roof sheets andthe converging seat for the wooden plug is formed by making the lining |517 with converging sides that rest against the converging flanges 4of the hatchway frame.

The modification illustrated in Fig. 11 has the upper'or hopper member I9c entirely above the general level of the roof sheets with its lower end positioned outside of the sheet flange I8 and secured thereto by rivets or welds as in the other cases; In this modification, the upper or hopper y member |90 flares upwardly and serves as a seat for the wooden plug, such seat being in this case located considerably higher than in the other cases described above. Y

The hatch construction hereinbefor-e described has several advantages. In the first place, the sheet metal lining takes the place of the thick Yplanks or boards heretofore used for the side walls of the hatchway and which greatly reduces the effective width and length of the hatch opening. Likewise, the use of the metal liner in connection with the flanging of the roof sheet affords a very substantial support for riveting or welding the hopper member, especially when the roof sheet is supported by the rigid frame around the hatch opening. Again, by making the liner of stainless steel or like metal that is not affected by brine and ordinary acids, corrosion is avoided and the effective life of the hatchway increased. Again, the riveting or welding of the liner and hopper to the hatch sheet avoids the danger of leakage into the space occupied by the insulating material.

round-cornered, with the curved corner pieces Making the hole in the hatch sheet welded thereon, is a simple operation and enables is opposite said flange, a hopper member hangi a portion opposite said flange and means for securing together the flange and the portions of the liner and the hopper member opposite said flange. 5

2. A refrigerator car comprising side plates, a roof thereon, and a hatchway extending through Y the roof, a metal framework around the hatchway opening andr supported by said side plates, the marginal portion o-f the roof around said opening being supported by said frame and havingan upstandin'g flange, a lining member for said opening extending upwardly opposite said flange and an upper member having a portion opposite said fiange, said members and flange being secured together and the member which is innermost below saidflange Vhaving downwardly converging sides. Y

3. A refrigerator car construction comprising a. metal roof, an iceV bunker and a hatchway eX- tending through the roof to said bunker, the hatchway construction comprising a metal lining extending above the body portion of the-roof and a metal hopper member which extends through the roof and has downwardly converging sides below the roof, said roof having an upwardly `extending flange around the hatchway opening,

,metal roof, an ice bunker and a hatchway ex- F tending through theroof to said bunker, the hatchway construction comprising'a metal lining `extending above the body portion of the roof and a metal Vhopper member'which extendsV through the roof and has downwardly converging sides bef low the roof, and means for securing rsaid hopper member, lining and roof together.

5. A refrigerator car comprising side plates, a roof thereon, an ice bunker, a hatchway extending through the roof into thel bunker, a metal framework supported by said side plates and dening the hatchway opening, the inner sides of said framework inclining inwardly and downwardly, and a. lining for said hatchway having a portion resting flatwise against the inclined portion of said framework.

v6. A refrigerator car comprising a roof, a substructure, an ice bunker, a hatchway extending through the roof into the bunker, a framework of obtuse angled metal members supported by said substructure and defining the hatchway opening, said members beingdisposed with one flange extending laterally outwardly from the other flange and said other flange inclining downwardly and inwardly, and a lining for said hatchway having a portion resting flatwise against the inclined portions of said framework members.

7. A refrigerator car comprising side plates, a roof thereon, an ice bunker, and a hatchway extending through the roof into the bunker, a framework of metal members of obtuse-angled section supported by said side plates and delining the hatchway opening, said members being iarranged with one flange inclining inwardly and downwardly, and a plug seat member having a portion resting atwise against the inclined portion of said framework.

8. A refrigerator oar comprising side plates, a roof thereon, a hatchway extending through the roo-f, a metal framework supported by said side plates and defining the hatchway opening, the outer sides of said framework inclining inwardly and downwardly, a lining for said hatchway having a portion resting atwise against the inclined portion of said framework, and a hopper member having a lower portion inside said lining and conforming to the inclined portion thereof and an upper portion extending above the roof.

9. In a hatchway construction, a roof sheet having a round cornered parallel sided ho-le therein and an integral upstanding flange along the straight edges of said hole, and curved corner pieces of metal Welded to the body of said sheet and the ends of said flanges in continuation thereof, a metal liner whose upper end fits in said flange, and a pressed metal hopper having a portion opposite the top portion of said liner, and means for securing said flange, liner and hopper together.

10. A refrigerator car construction comprising a metal roof, and a hatchway extending through the roof, the hatchway construction comprising a metal lining extending above the body portion of the roof and an upper member having a portion lapping the upper margin of said lining, and said roof having an upstanding ange opposite and secured to the lapped portions of saidlining and upper member.

11. A refrigerator car construction comprising a roof of metal sheets, an ice bunker and a hatchway extending through a roof sheet to said bunker, the hatchway construction comprising a metal lining extending above the body portion of said roof sheet and an upper member whose lower portion laps the upper margin of said lining, and said roof sheet having an upstanding iiange opposite and secured to the lapped portions of said lining and upper member.

12. In a hatchway construction, a roof sheet having a hole therein and an upstanding flange n hatch hole with upstanding iianges, an ice bunker and a hatchway extending through said hatch hole to said bunker, the hatchway construction comprising a metal lining whose upper portion is opposite said flanges and a hopper member having a portion opposite said flanges, and means for securing said hopper member to said anges and to the portion of the lining opposite thereto.

CHARLES DAVID BONSALL.

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