公开(公告)号：US4958573A

公开(公告)日：1990-09-25

申请号：US220686

申请日：1988-07-18

申请人： Flavio Mancini

发明人： Flavio Mancini

IPC分类号： E01B27/06

CPC分类号： E01B27/06

摘要： Rehabilitation machine (10) for railway road beds, which comprises a framework (11) rested on a front bogie (12) and rear bogie (13), cabs (14-15) to drive the machine during its travels, an excavation chain (20) cooperating with a hopper (21) in the transfer of excavated material onto an elevator (22), and a leading end (24) and trailing end (124) relative to the direction of advance (19) of the machine (10), and also comprises at one end a first front conveyor (27) to deliver a mixture of aggregate materials (26) and a second front conveyor (33) to deliver metalling (32) towards the machine (10) and also discharge conveyors (23) to discharge excavated material from the machine (10).

公开(公告)号：US6029737A

公开(公告)日：2000-02-29

申请号：US90

申请日：1998-01-23

申请人： Flavio Mancini

发明人： Flavio Mancini

IPC分类号： B22D17/02 ,  B22D17/04

CPC分类号： B22D17/04

摘要： A sealing and guiding device for the injection piston (3) of a hot chamber pump for corrosive alloys made up of a body (1) in which a chamber (6) and an injection cavity (2) therebelow are formed, wherein the piston (3) slides with a vertical reciprocating motion (V), includes a bush (8), having an outer diameter smaller than said chamber (6), interposed between centering members housed in the chamber (6) and made coaxial with the chamber (6) and with the piston (3) by a pair of opposite surfaces of revolution (12, 13) formed on said centering members, the upper surface (13) and the relevant centering member performing a pressure-tight sealing. The outer lateral surface (15) of the bush (8) is in communication with the injection cavity (2) whereas the upper side of the bush (8) is in communication with the crucible and immersed therein at a depth (L), measured from the lowest level (23) reachable by the molten alloy, which is greater than the maximum travel (C) of the piston (3). The inner surface (21) of the bush (8) is a surface of revolution with diameter just larger than the piston (3).

摘要翻译： PCT No.PCT / IT96 / 00108 Sec。 371日期1998年1月23日 102（e）日期1998年1月23日PCT提交1996年5月24日PCT公布。 公开号WO97 / 04902 日期1997年2月13日由用于腐蚀性合金的热室泵的注射活塞（3）的密封引导装置，其由其中形成有腔室（6）和其中的注射腔（2）的主体（1）构成 ，其中所述活塞（3）以垂直往复运动（V）滑动，包括具有小于所述腔室（6）的外径的衬套（8），插入容纳在所述腔室（6）中的定心构件之间并且制成同轴 通过形成在所述定心构件上的一对相对的旋转表面（12,13）与所述腔室（6）和所述活塞（3）连接，所述上表面（13）和所述相对定心构件进行耐压密封。 衬套（8）的外侧表面（15）与注射腔（2）连通，而衬套（8）的上侧与坩埚连通并在其中浸入深度（L），测量 从熔融合金可达到的最低水平（23）大于活塞（3）的最大行程（C）。 衬套（8）的内表面（21）是直径大于活塞（3）的旋转表面。

公开(公告)号：US4913240A

公开(公告)日：1990-04-03

申请号：US217967

申请日：1988-07-12

申请人： Flavio Mancini

发明人： Flavio Mancini

IPC分类号： E01B27/06 ,  E01B27/00

CPC分类号： E01B27/06

摘要： Machine to clean and rehabilitate railway ballast and railway road beds, which can: (1) remove the ballast, clean the ballast and then replace the ballast, or (2) remove the old ballast and replace it with new ballast. The machine, while riding on the railroad tracks, can remove the metalling of the ballast from the railroad track, then run the material through a riddle to clean the metalling, and finally replace the material. Alternatively, the machine may remove the metalling, then by reversing the direction of a distrubution conveyor, the machine can replace the old metalling with entirely new metalling brought to the distribution conveyor by various feed conveyors. In this alternative mode of operation, the machine can lay a two layered ballast consisting of two different materials.