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公开(公告)号：US5152163A
公开(公告)日：1992-10-06
申请号：US634199
申请日：1991-01-28
CPC分类号： B21C23/005 , B21C23/085 , B21C25/00 , B21C33/006
摘要： Apparatus for the continuous extrusion of metals in which feed is introduced into two (or more) speed apart circumferential grooves in a rotating wheel (or rotating wheels) to contact an arcuate shoe portion and abutments extending into the grooves. The feed is constrained by the abutments to flow through frusto-conical exit apertures of cone angles in the range of 5.degree.-45.degree. in the shoe portion to a chamber which may also be of the divergent frusto-conical form, and is extruded as relatively thin-walled, large-cross-section products. Mixer plates are profiled to distribute flow evenly from the apertures to around the die opening. An extrusion die body for cylindrical extrusions is located and axially centered by set screws. Where an even number of grooves are utilized, an extrusion mandrel may be secured to the shoe portion by a bolt positioned centrally of the grooves and having a passage for injection of lubricant or oxidation inhibiting fluids. Since the volume feed rate is enhanced and the distance travelled by the material from the grooves is reduced, friction losses and the likelihood of discontinuities arising in extrudate products of relatively large hollow cross-section are thereby reduced.
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公开(公告)号：US5157955A
公开(公告)日：1992-10-27
申请号：US659358
申请日：1991-03-11
CPC分类号： B21C23/005 , B21C23/214
摘要： Continuous extrusion apparatus (FIG. 1) including a rotatable, grooved, wheel 2 is provided with a shoe 6 mounted on a pivot 7 to be rotatable between a position engaging the wheel 2 and a dis-engaged position. The shoe 6 carries a tooling cartridge 10 including an abutment block 14, an expansion block 16, a die block 18 and an exit block 20 connected together with bolts 22 and held in position by locking keys 46 and a retaining ring 50. A reciprocable ram 60 registers with the cartridge 10 when the shoe 6 is in the dis-engaged position and is operable to raise a cartridge 10 from an associated heating chamber 56 into the shoe 6 or to lower a cartridge 10 from the shoe 6 into a storage chamber (not shown). By utilizing a cartridge 10, change-over and pre-heating of sets of dies is facilitated, enabling the apparatus to be connected directly to a continuous casting furnace (not shown).
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公开(公告)号：US5147085A
公开(公告)日：1992-09-15
申请号：US576527
申请日：1990-10-05
IPC分类号： B23K20/00 , B23K20/02 , B23K37/08 , B23K101/32
CPC分类号： B23K37/08 , B23K20/028
摘要： The machine is provided with a set of two pairs of die halves 60, 62 (FIG. 7) mounted in a framework on hydraulically actuated piston and cylinder assemblies. The die halves 60 and 62 of each pair are relatively radially reciprocable to grip or release a workpiece 102, 104 and the two pairs of die halves are relatively axially reciprocable to effect cold pressure welding together of end portions of the workpieces 102, 104. Adjoining end faces of the die halves are formed with nose portions 100 having inner anvil edges for effecting welding flash removal from the workpieces. In operation, the die halves are moved in sequence to grip the workpieces; to urge the ends of the workpieces together to form a cold pressure weld upset zone; to release the workpieces; to grip one of the workpieces; to urge the gripped workpiece axially relative to a pair of anvil edges to clear flash material from the upset to maintain the cross-sectional area at the weld upset zone substantially constant; and to re-position the upset weld zone centrally of the nose portions to repeat the sequence. Removal of the flash material intermediate consecutive weld upsets is effected in alternate directions. The anvil edges may be staggered, angled or of helical form to enhance the shearing effect to clear the flash material from the upset weld zone.
摘要翻译： PCT No.PCT / GB90 / 00323 Sec。 371 1990年10月5日第 102（e）日期1990年10月5日PCT 1990年3月2日PCT公布。 出版物WO90 / 09862 日期1990年9月7日。机器设置有一对两对半模60,62（图7），其安装在液压致动的活塞和气缸组件的框架中。 每对的半模60和62相对地可往复运动以夹紧或释放工件102,104，并且两对半模相对轴向往复运动以实现工件102,104的端部的冷压焊接在一起。相邻 半模的端面形成有具有内砧边缘的鼻部部分100，用于实现从工件的焊接闪光去除。 在操作中，半模依次移动以夹持工件; 将工件的端部一起推动以形成冷压焊接镦粗区; 释放工件; 抓住一个工件; 以相对于一对砧座边缘轴向推动夹紧的工件，以从镦粗中清除闪光材料，以保持焊接镦粗区域的横截面积基本上恒定; 并重新定位鼻部部分中心的镦粗焊接区域以重复序列。 中间连续焊接不均匀的闪光材料的去除在交替方向上进行。 砧座边缘可以交错，成角度或螺旋形，以增强剪切效果，以从镦粗焊接区域清除闪光材料。
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公开(公告)号：US4276846A
公开(公告)日：1981-07-07
申请号：US82153
申请日：1979-10-05
申请人： Douglas E. Anderson
发明人： Douglas E. Anderson
CPC分类号： B63C7/10
摘要： An apparatus for use in recovering an article at least partially submerged in water comprises at least two floatable members each having an arm mounted thereon and whose buoyancy can be varied, each arm carrying a recovery member having gripping or scooping means. A pivot interconnects said arms so that their motion opposes that of the recovery members. A locking device for progressively and releasably locking the arms with respect to each other is provided such that on release thereof the pivot moves downwardly by gravity, causing the recovery members to come together in a caliper-like action. Pressure sensing means in recovery members feeds back information to the locking device to cause the arms to lock and prevent an increase in pressure is attained. A further embodiment does not need a locking device. Each of the floatable members is pivotally connected to one of the arms in an upward direction to a maximum elevation, the pivotable floatable members being arranged to stabilize the apparatus when they are elevated against rolling thereof. A further locking device is provided to hold each of the pivotable floatable members at least in the horizontal and in the maximum elevated positions. A method for recovering submerged articles using such an apparatus and a method for adjusting the buoyancy of an apparatus and improving its submerged stability by the use of pivotable floatable members is also disclosed.
摘要翻译： 用于回收至少部分浸没在水中的制品的装置包括至少两个可浮动构件，每个浮动构件具有安装在其上的臂，并且其浮力可以变化，每个臂承载具有夹紧或舀取装置的回收构件。 枢轴使所述臂互连，使得它们的运动与恢复构件的运动相反。 提供了用于逐渐地和可释放地相对于彼此锁定臂的锁定装置，使得在其释放时，枢轴由于重力而向下移动，导致回复构件以卡钳状动作聚集在一起。 回收部件中的压力检测装置将信息反馈到锁定装置以使臂锁定并且防止压力增加。 另一实施例不需要锁定装置。 每个可浮动构件沿向上的方向枢转地连接到臂中的最大高度，可枢转的可浮动构件被布置成当设备升高以抵抗其滚动时使其稳定。 提供了另一个锁定装置，用于将每个可枢转的可浮动构件至少保持在水平位置和最大抬升位置。 还公开了一种使用这种装置回收淹没物品的方法和用于调节装置的浮力并通过使用可枢转的可漂浮构件来提高其浸没稳定性的方法。
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公开(公告)号：US4357890A
公开(公告)日：1982-11-09
申请号：US249437
申请日：1981-03-31
申请人： Douglas E. Anderson
发明人： Douglas E. Anderson
CPC分类号： B63C7/10
摘要： An adjustable buoyancy apparatus comprises a frame and at least two floating members of variable buoyancy which are pivotally coupled to the frame for pivotable motion in a substantially vertical plane between horizontal positions and maximum elevated positions. In the maximum elevated positions, the angle between the longitudinal axes of the floatable members and the horizontal is less than 90 degrees and the floating members are inclined upwardly toward each other. Locking mechanisms hold the floatable members in the horizontal and maximum elevated positions. This floatable member arrangement compensates for the rolling tendencies of the apparatus and stabilizes the apparatus when the apparatus is partially or completely submerged.
摘要翻译： 一种可调节的浮力装置包括框架和至少两个可变浮力的浮动构件，其可枢转地联接到框架，用于在水平位置和最大升高位置之间的基本垂直的平面中枢转运动。 在最大升高位置，可浮动构件的纵向轴线与水平面之间的角度小于90度，并且浮动构件朝向彼此向上倾斜。 锁定机构将浮动部件保持在水平和最大升高位置。 该可浮动构件布置补偿装置的滚动倾向，并且当装置部分或完全浸没时使装置稳定。
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公开(公告)号：US5675359A
公开(公告)日：1997-10-07
申请号：US372572
申请日：1995-01-13
申请人： Douglas E. Anderson
发明人： Douglas E. Anderson
CPC分类号： G05G9/047 , G05G2009/04755 , Y10T74/20201
摘要： A joystick controller for utilizing omnidirectional pivoting manual displacement by an operator to operate transducers for producing control signals comprises a mounting plate defining an opening therethrough and gimbal mounting means secured to the mounting plate for pivotally mounting a joystick shaft extending through the opening. The joystick shaft has an operator knob on one end, and a gauge plate on the other end, the gauge plate having a first straight edge and a second straight edge perpendicular thereto. First and second lever arms are pivotally mounted and biased against the first and second straight edges of the gauge plate, whereby displacement of the joystick knob causes displacement of the gauge plate and pivots the lever arms biased thereagainst. Follower rods extend from the lever arms to engage the gauge plate. First and second transducers are respectively operated by the pivoting lever arms. The transducers are either potentiometers, Hall effect sensing devices, LDVT transducers or LED-based transducers. A spring biased sliding centering collar returns the joystick shaft to its neutral position, absent operator input. The opening in the mounting plate limits inclination of the joystick shaft to maintain biased engagement of the gauge plate and lever arms.
摘要翻译： 操纵杆控制器，用于利用操作人员进行的全向枢转手动位移来操作用于产生控制信号的换能器，包括限定穿过其中的开口的安装板和固定到安装板上的万向节安装装置，用于可枢转地安装延伸穿过开口的操纵杆。 操纵杆轴在一端具有操作旋钮，另一端具有量板，该量板具有第一直边缘和与其垂直的第二直边缘。 第一和第二杠杆臂枢转地安装并偏压在量规板的第一和第二直边缘上，由此操纵杆旋钮的移动导致量规板的移动并使杠杆臂偏置在其上。 从动杆从杠杆臂伸出以与量规板接合。 第一和第二换能器分别由枢转杆臂操作。 换能器是电位计，霍尔效应感测装置，LDVT换能器或基于LED的换能器。 弹簧偏置的滑动定心环将操纵杆轴返回到其中立位置，没有操作员输入。 安装板上的开口限制了操纵杆轴的倾斜，以保持量规板和杠杆臂的偏置啮合。
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公开(公告)号：US4650408A
公开(公告)日：1987-03-17
申请号：US746466
申请日：1985-06-20
CPC分类号： B21C23/005
摘要： Apparatus for continuous extrusion of metals in which feed is introduced into a circumferential groove 26 (FIG. 3) in a rotating wheel 2 to contact arcuate tooling 22 and an abutment 24. The abutment 4 is spaced from the walls of the groove 26 so that in operation a lining of the feed material is produced. Indentations 52 assist in holding the lining in place. The extrusion is generally in a radial direction through an aperture 58. The extrusion orifices (not shown) may be of part annular cross-section of different area. The extrusion aperture may extend from outside the groove 26 to permit of increased orifice area.
摘要翻译： PCT No.PCT / GB82 / 00237 Sec。 371日期1983年3月25日 102（e）1983年3月25日PCT PCT 1982年8月2日PCT公布。 出版物WO83 / 00452 日期：1983年2月17日。用于连续挤压金属的装置，其中将进料引入旋转轮2中的周向槽26（图3）中以接触弧形工具22和邻接部24.邻接件4与 槽26的壁，使得在操作中产生进料的衬里。 压痕52有助于将衬垫保持在适当位置。 挤出通常通过孔58在径向方向上。挤出孔（未示出）可以是不同区域的部分环形横截面。 挤出孔可以从凹槽26的外部延伸以允许增加的孔面积。
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