Патент USA US2132186код для вставки
Oct. 4, 1938. ‘ 2,132,186‘ E. w. |_. RAMAKERS ' ELECTRIC ACCUMULATOR Filed Nov. 11, 1955 00 0 Patented Oct. 4, 1938 2,132,186 UNITED STATES PATENT OFFICE 2,132,186 ELECTRIC ACCUMULATOR Eduard Willem Louis Ramakers, Bandoeng, Java, Dutch East Indies Application November 11, 1935, Serial No. 49,294 In the Netherlands December 20, 1934 1 Claim. (Cl. 136-166) The invention relates to an electric accumu lator for the storage of electric energy,'which may be used for example in motor cars and the like. The well-known accumulators comprise cells ‘ the plates of which can only be removed with dif ?culty and with a considerable risk of damaging the pasted plates, making inspection and care of the interior impossible for those not skilled in the art and having no special equipment. With such 10 storage batteries the deposit accumulating in the cells, and which may be considered the principal 'cause of interior short-circuits is-di?icult to re move, and ?ushing appears to be of little effect, in practice, for removing the impurities on the bot 15 tom and those between the plates. Now the invention relates to an electric accum ulator having a cover from which the plates are suspended, the plates being arranged in a jacket entirely or partly open at the bottom and con ‘20 structed as an inner tank placed within an outer tank or vessel which holds the electrolyte. The accumulator is characterized by the fact that the Walls of said inner tank near the upper parts are provided ‘with outwardly protruding ribs form 25 ing, together with corresponding ribs of the inner wall of the outer tank and the upper parts of the walls of both tanks, a gutter-shaped space which may be ?lled up with a sealing material. Further according to the invention inwardly >30 protruding ribs can be arranged on the interior of ‘the walls of the inner tank near the upper parts, the cover of the accumulator being sup-v ported by the said ribs, whereby the joint be tween them may be covered by sealingmaterial. 35 This has for its effect that the inner tank can be removed in a simple way, without damaging the Fig. 2 is a side elevation of one of the cells of the accumulator, partly in section, and Fig. 3 isan elevation of part of the accumu-i lator, at right angles to Fig. 2, showing one of the cells partly in section. 5 In the drawing 3 is the inner tank composed, for example of a moldable insulating material, which in this case has perforated side walls, whereas the bottom side is open; this bottom, however, can also be constructed only partly 10 open. If necessary the side walls could be pro vided with ventilation openings. The said inner tank houses a group of plates P and is supported upon ridges 6a on the bottom of an outer tank 4, with a free space between the side wall of the 15 inner and outer tanks. The inner tank has in .tegral handles 2 whereby it can be removed from the outer tank. Near the upper parts the walls of the inner tank and the outer tank are pro vided with ribs 6 (Fig. 1) which are directed to- 20 wards each other and arranged on a level. After the ?tting-up of the cell the said ribs will be in juxtaposition or in engagement. In that case both ribs 6 form the bottom of a gutter-shaped space the upright walls of which are formed by 25 the upper parts of the walls 01’ both tanks. The said gutter-shaped space may be ?lled up with a sealing-material such as bitumen, pitch or the like, or with a strip of rubber, in order to bring about a perfect closing. 30 Further the walls of the inner tank can also be provided with an inwardly protruding rib 1 re ceiving the edge of the cover 8. The edge which is formed in this manner may also be closed by a sealing-mass 5. It is also possible, however, to 35 make the cover so that it forms one unit with the plates. The deposit can be removed without inner tank. di?lculty. The impurities and the ?imsy insula» I claim: tlon, if any, between the plates can be easily re In an electric accumulator, a group of ‘plates, 40 moved or interchanged. The condition ‘of the a cover from which said plates are suspended, a 40 plates can be examined. The/above mentioned jacket surrounding said group of plates and at manipulations can even be carried out by un least partly open at the bottom, said cover being skilled people so that in comparison with the supported upon said jacket, an outer vessel sur usual construction the duration of life is consid rounding said jacket, said jacketand vessel hav 45 erably increased by the simplicity with which the ing ribs projecting, respectively, outward and 45 supervision and the cleaning can be effected, inward just below their upper edges, and means whereas the technical advantages can be attained in said outer vessel supportihg said jacket so without an increase of the manufacturing cost that its rib stands in non~overlapping relation at worth mentioning. 50 The invention will be elucidated by reference to an example shown in the drawing. Fig. 1 is a fragmentary section on one corner of the accumulator showing how the various parts can be scaled up. the same level with the rib on said vessel, to form a gutter bottom for receiving a sealing 50 material. EDUARD WILLEM LOUIS RAMAKERS.