公开(公告)号：US3910481A

公开(公告)日：1975-10-07

申请号：US53152874

申请日：1974-12-11

Applicant: ALUMINUM CO OF AMERICA

Inventor： URBANIC JOHN M

IPC: B23K37/053 ,  B23K37/04

CPC classification number: B23K37/0531

Abstract: A collapsible alignment and back-up tool adapted to be inserted in abutting ends of pipes or tubular members to be joined together, as by welding and the like, for maintaining such abutting ends in proper alignment and providing a continuous back-up during the joining operation includes an assemblage that is collapsible when subjected to the influence of a magnetic field. Due to its magnetic structural characteristics, the tool may be caused to move longitudinally within a tubular member or it may be restrained at any location along the length of the tubular member. A pair of end plugs are slidably mounted on a shaft. The ends of a plurality of interengaging arcuate segments are supported on shoulders carried by each of the end plugs to form, in expanded condition, a substantially cylindrical surface that collapses when the end plugs are moved outwardly apart along the shaft. The end plugs are formed of a magnetic material and all other elements are formed of relatively nonmagnetic material. When subjected to the influence of a magnetic field, the end plugs are caused to move apart to collapse the tool and/or to move the tool longitudinally within a pipe or tubular member.

Abstract translation: 一种可折叠的对准和后备工具，适用于通过焊接等插入到要连接在一起的管子或管状构件的邻接端，用于将这种邻接端保持在适当的对齐状态，并在连接期间提供连续的后备 操作包括当受到磁场的影响时可折叠的组合。 由于其磁性结构特征，可能使工具在管状构件内纵向移动，或者其可以沿着管状构件的长度被限制在任何位置。 一对端塞可滑动地安装在轴上。 多个相互接合的弧形段的端部支撑在由每个端塞承载的肩部上，以在膨胀状态下形成基本上圆柱形的表面，当端塞沿着轴向外移动时，该圆形表面塌缩。 端塞由磁性材料形成，并且所有其它元件由相对非磁性材料形成。 当受到磁场的影响时，使端塞移动离开以使工具折叠和/或在管或管件中纵向移动工具。

公开(公告)号：US3686465A

公开(公告)日：1972-08-22

申请号：US3686465D

申请日：1971-03-25

Applicant: ALUMINUM CO OF AMERICA

Inventor： URBANIC JOHN M

IPC: B23K9/10 ,  H01C13/00 ,  H05B31/18

CPC classification number: B23K9/1037

Abstract: A combination providing a control device for automatically changing the rate at which a consumable welding material is fed to a weld area to eliminate crater cracking. The combination comprises a potentiometer having a sliding contact arm mechanically connected to be moved by a means operated by pressurized fluid. Operation of the fluid means is effected automatically by means capable of directing fluid thereto at a controlled, changing rate to provide a controlled, gradual change in the resistance of the potentiometer. Such control of the potentiometer is effective to provide a controlled, gradual change in the rate at which the welding material is fed to the weld area.

Abstract translation: 提供一种控制装置的组合，用于自动地改变将消耗性焊接材料送入焊接区域的速率以消除火山口裂纹。 该组合包括电位计，其具有机械连接以通过加压流体操作的装置移动的滑动接触臂。 流体装置的操作通过能够以受控的变化率引导流体的装置自动实现，以提供电位计的电阻的受控的逐渐变化。 电位器的这种控制有效地提供焊接材料被供给到焊接区域的速率的受控的逐渐变化。