Process for producing foundry sand molds
    1.
    发明授权
    Process for producing foundry sand molds 失效
    生产铸造砂模的工艺

    公开(公告)号:US3916976A

    公开(公告)日:1975-11-04

    申请号:US43047374

    申请日:1974-01-03

    IPC分类号: B22C11/00 B22C15/30

    CPC分类号: B22C11/00

    摘要: A foundry molding machine utilizing a match-plate and two sets of rubber lined cope and drag slip flasks with two stations; one station assembling one set of flasks with the match-plate therebetween and then rolling over the flask-match-plate assembly to fill the drag with sand while supporting the assembly on the cope and jolting and applying a low pressure preliminary squeeze to the sand within the drag, rolling the assembly back to fill the cope and then supporting the assembly on the sand within the drag for the application of jolt and high pressure squeeze to the sand in both the cope and drag, separating the assembly and indexing the cope and drag vertically separated to a second station while simultaneously indexing the second set of flasks to the first station, holding the sand rammed flasks vertically separated in the other station to permit coring and closing the flasks and stripping the sand cakes thus assembled therefrom to be placed on a bottom board while the second set of flasks are being filled and rammed at the first station; the indexing and roll-over of such flasks being obtained each by a piston-cylinder assembly having controlled stroke deceleration on extension thereof.

    摘要翻译: 采用匹配板的铸造成型机和两台带有两个台站的橡胶衬里和拖滑板; 一个站组装一组烧瓶,其间具有匹配板,然后在烧瓶配合板组件上滚动以用沙子填充阻力,同​​时将组件支撑在上下和颠簸上,并将低压初步挤压施加到砂内 拖曳,将组件滚动以填充对面,然后在拖曳状态下将组件支撑在沙上,以便在上下和下拖曳中施加颠簸和高压挤压到沙子上,分离组件并分配上下料和拖曳 垂直分隔到第二工位,同时将第二组烧瓶分配到第一工位,将砂夯锤在另一工位上垂直分隔,以允许取芯和关闭烧瓶并剥离由此组装的砂饼放置在 底板,而第二组烧瓶正在第一站被填充和撞击; 这种烧瓶的分度和翻转是通过活塞 - 气缸组件获得的,该活塞 - 气缸组件在其延伸上具有受到控制的行程减速度。

    Method for producing heterocyclic acid anhydrides
    2.
    发明授权
    Method for producing heterocyclic acid anhydrides 失效
    制备杂环酸酐的方法

    公开(公告)号:US3887550A

    公开(公告)日:1975-06-03

    申请号:US87855269

    申请日:1969-11-20

    摘要: A method for producing heterocyclic acid anhydrides and pyrimidinediones from the corresponding acids, dicarboxamides, 2,3-and 3,4-pyridinedicarboxamides, and N-monosubstituted 2,3-and 3,4-pyridinedicarboxamides, in which the aforesaid compounds are reacted with lead tetra-acetate in the presence of a suitable anhydrous inert solvent. Heterocyclic acid anhydrides are useful as intermediates in the production of pharmaceuticals, agricultural chemicals, and anthranilic acid esters used as perfume essences and flavoring materials. Pyrimidinediones and ring substituted analogues are useful as agricultural chemicals, especially as herbicides.

    摘要翻译: 从相应的酸,二甲酰胺,2,3-和3,4-吡啶二甲酰胺和N-单取代的2,3和3,4-吡啶二甲酰胺制备杂环酸酐和嘧啶的方法,其中上述化合物与 四醋酸铅在合适的无水惰性溶剂存在下进行。

    Foundry sand article forming machine
    4.
    发明授权
    Foundry sand article forming machine 失效
    FOUNDRY SAND ARTICLE FORMING MACHINE

    公开(公告)号:US3817315A

    公开(公告)日:1974-06-18

    申请号:US17782171

    申请日:1971-09-03

    发明人: JANKE G

    IPC分类号: B22C11/00 B22C15/24 B22C17/08

    CPC分类号: B22C11/00 B22C15/24

    摘要: A machine for the production of foundry sand articles including a first piston-cylinder assembly for forming a box, a second such assembly for filling a reservoir with molding sand and clamping such reservoir laterally against such box for the sand to be blown therein, the first assembly disassembling such box and stripping the sand article therein onto a discharge conveyor after the second assembly has withdrawn the reservoir for filling, the first assembly also indexing the conveyor.

    摘要翻译: 一种用于生产铸造砂制品的机器,包括用于形成箱子的第一活塞 - 气缸组件,用于用型砂填充储存器的第二这种组件,并且横向地将这种储存器夹紧在这样的箱子上以使其被吹入其中;第一 组装拆卸这种盒子并在第二组件已经抽出用于填充的储存器之后将其中的砂制品剥离到排出输送机上,第一组件也对输送机进行分度。

    Jolt table shaped for supporting cope top and telescoping into drag
    5.
    发明授权
    Jolt table shaped for supporting cope top and telescoping into drag 失效
    用于支持COPE顶部和拉伸成DRAG的JOLT表

    公开(公告)号:US3815662A

    公开(公告)日:1974-06-11

    申请号:US13152871

    申请日:1971-04-05

    IPC分类号: B22C11/00 B22C15/30

    CPC分类号: B22C11/00

    摘要: A foundry molding machine utilizing a match-plate and two sets of rubber lined cope and drag slip flasks with two stations; one station assembling one set of flasks with the matchplate therebetween and then rolling over the flask-match-plate assembly to fill the drag with sand while supporting the assembly on the cope and jolting and applying a low pressure preliminary squeeze to the sand within the drag, rolling the assembly back to fill the cope and then supporting the assembly on the sand within the drag for the application of jolt and high pressure squeeze to the sand in both the cope and drag.

    摘要翻译: 采用匹配板的铸造成型机和两台带有两个台站的橡胶衬里和拖滑板; 一个工位组装一组烧瓶与其间的匹配板,然后在烧瓶配合板组件上滚动以填充沙子的拖曳,同时支撑组件在上下和颠簸上,并在拖曳内将低压预挤压施加到沙子 ,将组件滚回以填充上盖,然后将拖把上的组件支撑在沙子上,以便在上下料和拖曳中施加颠簸和高压挤压到沙子上。

    Ester-containing liquid polyols
    6.
    发明授权
    Ester-containing liquid polyols 失效
    含ESTER的液体聚合物

    公开(公告)号:US3806479A

    公开(公告)日:1974-04-23

    申请号:US26283172

    申请日:1972-06-14

    CPC分类号: C08G63/42 C08G63/20

    摘要: THIS INVENTION IS DIRECTED TO ESTER-CONTAINING LIQUID POLYOL COMPOSITIONS AND TO THE METHOD OF PREPARING SAME WHICH COMPRISES CONTACTING AND REACTING AT LEAST ONE POLYCARBOXYLIC ACID OR ACID-PRODUCING COMPOUND AND A MONOCARBOXYLIC FATTY ACID WITH AT LEAST ONE ALIPHATIC OR CYCLOALIPHATIC POLYHYDROXY COMPOUND, E.G. AN ALKYLENEGLYCOL TO OBTAIN AN ESTER-CONTAINING POLYOL INTERMEDIATE AND SUBSEQUENTLY CONTACTING AND REACTING SAID POLYOL INTERMEDIATE WITH AT LEAST ONE EPOXIDIZED FATTY OIL OR EPOXIDIZED FATTY ACID ESTER. THE ESTER-CONTAINING LIQUID POLYOLS ARE USEFUL IN PREPARING FILMS, COATINGS AND PARTICULARLY FOR PREPARING RESIN COATINGS OR ENAMELS OF THE AMINOPLAST AND URETHANE-TYPE.

    Laminated electrophotographic unit and process
    7.
    发明授权
    Laminated electrophotographic unit and process 失效
    层压电子单元和工艺

    公开(公告)号:US3798029A

    公开(公告)日:1974-03-19

    申请号:US3798029D

    申请日:1971-07-27

    发明人: SAKLIKAR A

    IPC分类号: G03G5/147 G03G15/22 G03G13/22

    摘要: A unit adapted for use in electrophotographic cameras and an electrophotographic process are disclosed where the unit has electrostatic charges and comprises a photosensitive member consisting of a photoconductive layer and an electroconductive layer electrostatically attached to an insulating layer. If the unit is to be used as a film and stored for later exposure, it is sealed in an encasing sheet of the insulating material. If the unit is to be exposed directly, the insulating layer can comprise a master containing an image. During formation of the unit, the photoconductive layer is given a charge of a first polarity and the insulating layer is given a charge of an opposite polarity prior to contacting the two and prior to exposure to radiation. A preferred embodiment utilizes a clear plastic insulating layer with a resistivity of 1014 to 1018 ohms-meters and a dielectric constant of about 2 which in the form of a film contains no image and in the form of a printing element contains an image.

    摘要翻译: 公开了适用于电照相照相机和电照相方法的单元,其中该单元具有静电电荷并且包括由静电附着到绝缘层的光电导层和导电层组成的感光构件。 如果将该单元用作薄膜并存储以供日后曝光,则将其密封在绝缘材料的封装片中。 如果要直接暴露该单元,则绝缘层可以包括含有图像的母版。 在单元形成期间,光电导层被赋予第一极性的电荷,并且在暴露于辐射之前在绝缘层接触两者之前给予绝缘层相反极性的电荷。 一个优选的实施例使用电阻率为1014至1018欧姆米和介电常数为约2的透明塑料绝缘层,其形式为膜不包含图像,并且印刷元件的形式包含图像。