US2006253A - Movable weir - Google Patents

Description

June 25, 1935.

H. ZIMMERMANN MOVABLE WEIR Filed July's, 1954 Patented June 425 1935 nfi'jiiflil*rsp STATT-:s PATENT orifice-ff MovABLE WEI.' f

Application July 9, 1934, Serial No. 734,412 In Germany October 29, 1931 3 Claims.

The invention relates to an improvement in movable weirs of the Stoney roller type the body of which has a quadrangular cross section, and more especially to an improved connection `of the weir body to the wheel supports at the ends of the same, which connection is most advantageous for sluice Weirs with large distance of supports. f

According to the invention the quadrangular Weir body is at its ends so constructed, that the end members of the tail Water beams of the main girders are in the end field inclined from the horizontal main girder levels so that they converge in the perpendicular line passing through them in the level of the end plate and meet in a single point. Thus the said end members form a triangle in the perpendicular level of the end plates. By this means a considerable expenditure of iron structure or masonry as in the known constructions is avoided.

The invention is more clearly described by way of example in the accompanying drawing, in which Fig. l. is a cross-section of the novel connection between the quadrangular Weir body and its end plates according to line l-I of Fig. 2,

Fig. 2 is a plan View according to Fig. l,

Fig. 3. is a cross section through line 3-3 of Fig. 2, and

Fig. 4 is a side-.view accordingto Fig. 2.

In Fig. l the triangular form of the Weir body structure in the level of the end plate 8 is shown, while in Fig. 3 the quadrangular cross-section of the Weir body is represented with the top and the bottom main girder 45 and 44 respectively and the separate head water beams 41 and 46 respectively and separate tail Water beams 50 and 6u respectively. In order to better distinguish the single members of the beams in Figs. 2 and k4 the indices a, b and c are used for the beam members 46 and 41 and the indices I, 2 and 3 for the members 6D and 6u. According to the invention the end members 601 and Bui respectively of the tail Water beams of the main girders 44 and 45 are in the end i'leld so inclined from the horizontal main girder vlevels that they converge in the perpendicular line` passing through them in the level of the end plate (Fig. 4). Theythus form a triangle with the members' 33', 34 and 43 in the area of the perpendicular connection of the beams 60 and 6u which with its base therefore rest immediately on the end. plates 8. 9 and I 0 are the bearings With which the end plate 8 rests upon the bogie Wagons or supporting wheels II and I2, and 4| is the pier with its recess 42 in which the Weir can be moved. 43 is the weir Wall or skin plate of the Weir body with which the main girders 44 and 45 and the head Water beams 46 and 41 are connected.

In contradistinction thereto the hitherto used construction with a quadrangular Weir section made it necessary either to enlarge the axle base of the supporting wheels or the breadth of the pier recess in order to properly connect the Weir body with the end plate. The iirst mentioned arrangement requires a greater length and bending stress of the end plate 8, i. e. a considerable additional expenditure in iron structures and generally a pit in the recess base as Well as a heightening of the pier which entails additional expenditure of masonry and at the same time disadvantages in operation (accumulation of mud or settling of stones in the pit of the supporting wheels). The latter arrangement necessitates a considerable increase of the recess width and therefore an enlargement of the pier which also means an additional expenditure of masonry. For these reasons constructors have hitherto desisted therefrom and have rather put up with the construction of the main girders with their disadvantageous consequences in respect of the oscillation rigidity of the Weir.

What I claim and desire tot secure by Letters Patent of the United States is:

el. Movable Weir of the Stoney roller type the body of which has a quadrangular cross-section comprising a Weir wall, upper and lower main girders, the said main girders being substantially parallel and connected at their one end with the Weir wall, beams at the ends of the main girders, lateral end plates to which the beams are connected, the beams at the free ends of the main girders being substantially parallel in a horizontal level except their end members in the end field, which end members are so inclined that they converge and intersect each other in the end plates in a single point so that a triangle of beams is formed in the end elds.

2. Movable weir of the Stoney roller type the body of which has a quadrangular cross-section, comprising a Weir wall, upper and lower main girders which are substantially parallel and connected at their one end with the Weir wall, upper and lower head water beams and tail water beams at the ends of the main girders, lateral end plates to which the beams areV connected, the head Water beams being arranged parallel to one another at the Weir wall, the tail water beams being substantially parallel to the weir wall from end plate to end plate and parallel to one another in a horizontal level except their end members in the rend eld, which end members are so inclined that they converge and intersect each other in the end plates in a single point so that a triangle of beams is formed in the end fields.

3. Movable WeirOf the Stoney roller type the body of which has aquadrangular cross-section, comprising a Weir wall, upper and lower main glrders which are substantially parallel and con? nected at their one end with the Weir wall, .upper and lower head water beams and tail water beams at the ends of the main/girders, 'lateral end plates to which the beams are connectedythe head water beams being arranged parallel to one another at the Weir wall, the tail water beams being substantially parallel to the Weir wall from kend plate to end plateand parallel to one an'- other in a horizontal level except their end members in. the end eld, which end members are so inclined that they converge and intersect each other in the end plates in a single point so that a ltriarigleoi.' beams is formed ini thefedxplates, bearings *at the tail water side 'of the end'plates, bogie wagons for supporting and moving the weir body, the said bogie wagons being nonnected with the bearings of the end plates and arranged close below and above the intersecting point of the tail Water V beams.

HANS ZIMMERMANN.

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