专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

DE672397C 未知
公开(公告)号：DE672397C
公开(公告)日：1939-03-01
申请号：DEST053673
申请日：1935-07-05
申请人： WILHELM DUETZMANN
IPC分类号： F02M31/18

2. 发明专利

GB341450A Improvements in presses for the treatment of cellulose sheets 未知
公开(公告)号：GB341450A
公开(公告)日：1931-01-12
申请号：GB3107029
申请日：1929-10-12
申请人： WILHELM DUETZMANN
IPC分类号： C08B1/12
摘要： Cellulose nitrate; preparatory treatment of cellulose.-A horizontal press for the treatment of cellulose sheets, e.g. with alkali lye for the production of alkali cellulose, or with nitric acid for the production of nitrocellulose, is provided with means whereby the liquid is kept in constant movement. As shown, the press comprises a long tank a in which is located the pressing head b. Partitions d, connected by chains &c. are guided by rods e. Liquid is admitted through a pipe f and passes through perforated bottom members i1, k, and overflows into a gutter g fitted with an outflow pipe h. Alternatively, the liquid may be admitted through a number of pipes beneath the bottom members i1, k and extending longitudinally and transversely of the tank. A drain pipe h1 and sloping bottom permit the tank to be easily drained. The pressed and moistened sheets are removed by a basket i1 of known type.

3. 发明专利

GB344126A Improvements relating to horizontal dipping presses 未知
公开(公告)号：GB344126A
公开(公告)日：1931-03-05
申请号：GB22630
申请日：1930-01-02
申请人： WILHELM DUETZMANN
IPC分类号： C08B1/12
摘要： A horizontal dipping trough suitable for the preparation of alkali cellulose, comprises a container which is provided with a fall opening a4 capable of being closed by slides, flaps, or the like, in a fluidtight manner. The thrust bearing b is situated either on the rear wall a2 of the container (as in Fig. 4), or immediately in front of or behind the opening a4, in which case the thrust bearing is apertured and the aperture closed by means of a pressure plate e which may also serve to close the fall opening a4 as is shown in Fig. 1. When working with an apparatus having an apertured thrust bearing, as for example, according to Fig. 1, the pressure head k is retracted to the position shown and the cellulose sheets are inserted between the partitions d. The pressure plate e is lowered to close the fall opening a4 (which, however, may be closed by a separate flap or the like from below), lye is admitted through the pipe h and the chemical treatment of the sheets is carried out. When this has been done, the lye is allowed to flow away through i, and the pressure head k advanced to express the surplus of lye from the sheets. The pressure plate e is finally raised and the pressure head further advanced so as to cause the partitions to pass into the extension a1, and the cellulose sheets to fall through the opening a4 into a truck provided below. The pressure head and partitions are then withdrawn to their original position. When using the apparatus shown in Fig. 4, the cellulose sheets, after treatment with the lye, are pressed against the thrust bearing b to remove the excess of lye; the fall-opening is then uncovered by lowering the flap p operated by the link member q, and the pressure head and partitions retracted, thereby allowing the cellulose sheets to fall out.

4. 发明专利

GB461797A Improvements relating to the treatment of difficultly volatilisable liquid fuels for internal combustion engines 未知
公开(公告)号：GB461797A
公开(公告)日：1937-02-24
申请号：GB1855536
申请日：1936-07-03
申请人： WILHELM DUETZMANN
IPC分类号： C10L1/04 , F02M1/00 , F02M31/18
摘要： 461,797. Vaporizers. DUTZMANN, W. July 3, 1936, No. 18555. Convention date, July 4, 1935. [Class 7 (iii)] A liquid fuel which is volatilizable with difficulty is atomized with the aid of heat prior to an admixture of air and water vapour ; the mixture is heated and further air supplied to it in stages of which at least one is in the course of the heating and one at the conclusion of the heating. Heavy fuel fed through a nozzle 6 is sprayed against the glowing wall of a hot bulb 10 in the exhaust pipe 2 and the products pass into a mixing chamber 12 having an inlet 13 for air drawn through apertures 17 opposite a moistened wick 14. The mixture is further heated in an inner vertical coil 3, the lower end of which receives fresh air from a pipe 18, this mixture being reheated in an outer coil leading to a mixing chamber 7. In this chamber, a cone 22 controls the passage of the mixture and a suction operated air valve 20 the entrance of a final supply of air. To increase the temperature of the exhaust gases, the cylinders eject them through a nozzle 23 surrounded by air ports, the air permitting the completion of the combustion of the gases.

5. 发明专利

DE556322C 未知
公开(公告)号：DE556322C
公开(公告)日：1932-08-06
申请号：DED0059285
申请人： WILHELM DUETZMANN
IPC分类号： C08B1/12

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式