公开(公告)号：US3864507A

公开(公告)日：1975-02-04

申请号：US44554374

申请日：1974-02-25

Applicant: ALUMINUM CO OF AMERICA

Inventor： FOX D MARSHALL ,  WEISS RICHARD B

IPC: H02G5/06 ,  H01B9/06

CPC classification number: H02G5/066 ,  H02G5/065

Abstract: An electrical conductor assembly particularly adapted for underground transmission of high voltage direct current is provided which includes a hollow, cylindrical metal sheath made of elongate staves having tongue and groove engagement between the longitudinal edges of adjacent staves and welded together exteriorly of such tongue and groove engagements and having a groove in the bottom of the sheath in the interior surface thereof to collect particles of foreign matter in the sheath. The conductor further includes a solid cylindrical conductor core of metal such as an aluminum conductor alloy concentrically supported in the sheath by a plurality of insulators at spaced intervals along the length of the conductor and has a compressed gas in the sheath for insulating the aluminum core from the sheath.

Abstract translation: 提供一种特别适用于高压直流电的地下传输的电导体组件，其包括由细长的板条制成的中空的圆柱形金属护套，其在相邻板条的纵向边缘之间具有榫舌和凹槽接合，并且在这些舌和槽接合外部被焊接在一起 并且在其内表面中在护套的底部具有凹槽以收集护套中的异物颗粒。 该导体还包括一个金属固体圆柱形导体芯，例如铝导体合金，该导体合金通过多个绝缘体以同一个绝缘体的形式沿导体长度间隔开间隔地支撑在壳体中，并且在外壳中具有一个压缩气体，用于使铝芯绝缘 护套。

公开(公告)号：US3863969A

公开(公告)日：1975-02-04

申请号：US41171773

申请日：1973-11-01

Applicant: ALUMINUM CO OF AMERICA

Inventor： WEISS RICHARD B ,  FOX D MARSHALL

IPC: B66C1/00 ,  B66C1/02

CPC classification number: B66C1/0212 ,  B66C1/0231 ,  B66C1/0293

Abstract: A vacuum lifter including a cup having a bottom wall and a lip, a sealing ring, means for holding an edge of the sealing ring hermetically against the lip, a plurality of radial segment means arranged free of restraint from one another, and spring means, independent of said radial segment means, for biasing the radial segment means individually in the direction from the bottom wall toward the lip against the sealing ring outside of such edge, the radial segment means distributing force exerted by the spring means uniformly onto the sealing ring, the radial segment means being able to deflect in the direction from the lip toward the bottom wall against the spring means biasing.

Abstract translation: 一种真空提升机，包括具有底壁和唇缘的杯子，密封环，用于将密封环的边缘气密地保持在唇缘上的装置，多个径向分段装置，其彼此不受约束，而弹簧装置， 独立于所述径向段装置，用于将径向段装置分别沿着从底壁朝向唇缘的方向偏压抵靠在该边缘外侧的密封环，径向段意味着由弹簧装置施加的力均匀地分布到密封环上， 径向段装置能够抵抗弹簧装置的偏压从唇缘朝向底壁的方向偏转。