公开(公告)号：US4007915A

公开(公告)日：1977-02-15

申请号：US640952

申请日：1975-12-15

申请人： Henry B. Chambers

发明人： Henry B. Chambers

IPC分类号： B66F1/08 ,  B66F1/04

CPC分类号： B66F1/08

摘要： A jacking apparatus comprises a rail having a plurality of pairs of vertical slots longitudinally spaced apart. A sled slides along this rail and has cross members to which are pivotably attached ends of hydraulic cylinders, the other ends of the hydraulic cylinders being pivotably attached to cross heads which also slide along the rail. The cross heads have bevelled latches, slidable vertically, and longitudinally reversible for engagement with the slots in the rail; so that repetitive, reciprocal movement of the hydrauic cylinder pistons will cause successive, incremental movements of the sled and a load selectively pushed or pulled by the sled along the rail.

摘要翻译： 顶起装置包括具有纵向间隔开的多对垂直槽的导轨。 滑轨沿着该轨道滑动并且具有横向构件，液压缸的可枢转地连接的端部，液压缸的另一端可枢转地附接到也沿着轨道滑动的十字头。 十字头具有倾斜的闩锁，可垂直滑动并纵向可逆地与轨道中的槽接合; 使得液压缸活塞的重复的往复运动将导致滑架的连续的增量的运动以及滑轨沿着导轨选择性地推动或拉动的载荷。

公开(公告)号：US3978676A

公开(公告)日：1976-09-07

申请号：US626078

申请日：1975-10-28

申请人： Henry B. Chambers ,  Clair W. Tellefson ,  Tony H. Balsillie

发明人： Henry B. Chambers ,  Clair W. Tellefson ,  Tony H. Balsillie

IPC分类号： B63C3/06 ,  E02C5/00 ,  B63C5/00 ,  B66B9/04

CPC分类号： E02C5/00 ,  B63C3/06

摘要： A ship lifting apparatus, or drydock, is formed by a pair of parallel, spaced apart piers which define a slip in which is located a platform on to which a ship can be floated. The platform is raised or lowered by a plurality of chain jacks mounted in aligned rows on each of the piers. One of the chain jacks is a master jack and has chain link-engaging latches controlled by a cam and follower while the other chain jacks are slave jacks being actuated by connection to each other and the master jack by tensioned cables attached to their latch actuating mechanisms.

摘要翻译： 船舶起重设备或干船坞由一对平行的间隔开的码头形成，该码头限定了一个滑动件，其中位于船舶可浮起的平台上。 平台由安装在每个码头上的排列的多个链式起重机升高或降低。 链式千斤顶中的一个是主插座，并且具有由凸轮和跟随器控制的链接接合闩锁，而另一个链式千斤顶是通过彼此连接而致动的从插座，并且主插座由连接到其闩锁致动机构的张紧电缆 。

公开(公告)号：US4572481A

公开(公告)日：1986-02-25

申请号：US311413

申请日：1981-10-14

申请人： Henry B. Chambers

发明人： Henry B. Chambers

IPC分类号： B66F1/02 ,  B66F1/00

CPC分类号： B66F1/025

摘要： A hydraulic apparatus is shown for moving a heavy load along an I-beam shaped structural member comprising a releasable clamping assembly and a double acting hydraulic jacking cylinder. The releasable clamping assembly includes a ramp plate, a pair of ramp mating members and a pair of jaw members having a cavity defined by opposed sloped walls having a bearing surface which cooperate with a ramp plate and ramp mating members causing the gripping surface of the ramp plate and ramp mating members to engage the flange of an I-beam. The releasable clamping assembly transmits a thrust load from a jacking cylinder thrust to the jaw member which reacts to apply a clamping force to the ramp plate and ramp mating members such that a thrust load away from direction of load travel will result in the ramp plate and the pair of ramp mating plates being urged towards each other to grip the flanged surface of the I-beam and arrest the motion of the jacking cylinder relative to the I-beam. The releasable clamping assembly is responsive to a very small thrust load in the direction of travel to move the ramp plate and ramp mating members apart from one another allowing the jacking cylinder and clamping assembly to be repositioned. Gripping lugs extending from the jacking cylinder to the flange of the I-beam transmit part of the rotational movement directly to the I-beam to permit the use of a small size jacking cylinder.

摘要翻译： 示出了用于沿着包括可释放的夹紧组件和双作用液压起重缸的I型梁结构构件移动重载荷的液压装置。 可释放的夹紧组件包括斜面板，一对斜面配合构件和一对钳口构件，其具有由相对的倾斜壁限定的空腔，所述腔体具有支承表面，该支承表面与斜面板和斜面配合构件配合， 板和斜坡配合构件接合工字钢的凸缘。 可释放的夹紧组件将推力载荷从顶推气缸推力传递到钳口构件，其反作用力将夹紧力施加到斜板和斜坡配合构件，使得远离负载行进方向的推力负载将导致坡道板和 一对斜坡配合板彼此相对推动以夹紧I型梁的带凸缘的表面并且阻止顶起气缸相对于工字梁的运动。 可释放的夹紧组件响应于在行进方向上的非常小的推力载荷，以使斜坡板和斜坡配合构件彼此分开，允许顶起气缸和夹紧组件重新定位。 从顶升气缸延伸到I型梁的凸缘的夹紧凸耳将旋转运动的一部分直接传递到I型梁，以允许使用小型起重气缸。

公开(公告)号：US3994475A

公开(公告)日：1976-11-30

申请号：US673148

申请日：1976-04-02

申请人： Henry B. Chambers

发明人： Henry B. Chambers

IPC分类号： B66F1/08 ,  F16L1/20

CPC分类号： B66F1/08 ,  F16L1/202

摘要： A jacking apparatus comprises a rail with an attached vertical rack having teeth with a steep front face and a sloping back. A notch is arranged in the back of each of the rack teeth. A pair of cars are slidably mounted on the rail with each car carrying a pair of latches, one of which is engageable with the front face of a rack tooth and the other with the notch in the back of that tooth. Reciprocal motion, away from and toward each other, is imparted to the cars while the latches selectively engage teeth in the rack to cause progressive incremental travel of the cars along the rail, to move a load attached to one of them.

摘要翻译： 顶升装置包括具有附接的垂直齿条的轨道，其具有陡峭的前表面和倾斜的后部的齿。 在每个齿条齿的背面设有凹口。 一对轿厢可滑动地安装在轨道上，每个汽车承载一对闩锁，其中一个可与齿条齿的前表面接合，另一个与该齿背面的切口接合。 向彼此靠近的方向相互往复运动，同时闩锁选择性地接合齿条中的齿，以使轿厢沿轨道逐渐增加行驶，以移动附着在其中一个上的负载。