公开(公告)号：US4732511A

公开(公告)日：1988-03-22

申请号：US495454

申请日：1983-05-19

申请人： Dennis F. Rutherford

发明人： Dennis F. Rutherford

IPC分类号： E21D23/00 ,  E21D23/04

CPC分类号： E21D23/0427 ,  E21D23/0043

摘要： A mine roof support includes a pair of substantially-parallel floor-engaging members, a roof engageable member, a shield pivotally-connected to the floor-engaging members, by at least one pair of parallel links, and pivotally-connected to the roof-engageable member, and prop means carried by the floor-engaging members by which the roof-engageable member can be urged into engagement with a mine roof. A strengthening member connects the pair of parallel links. The strengthening member and the pair of parallel links provide the sole connection between the rear-end portions of the floor-engaging members by which the forces tending to cause relative displacement of those rear-end portions in the vertical direction are substantially resisted.

摘要翻译： 矿顶支架包括一对基本上平行的地板接合构件，屋顶可接合构件，通过至少一对平行链节枢转地连接到地板接合构件的屏蔽件，并且枢转地连接到屋顶接合构件， 可接合构件和由地板接合构件承载的支撑装置，通过该配合构件可以促使屋顶可接合构件与矿顶接合。 加强构件连接该对平行连杆。 加强构件和一对平行连杆提供了地板接合构件的后端部之间的唯一连接，通过该连接部件，倾向于引起这些后端部分在垂直方向上的相对位移的力被大体上抵抗。

公开(公告)号：US4492495A

公开(公告)日：1985-01-08

申请号：US503849

申请日：1983-06-13

申请人： Dennis F. Rutherford ,  Keith D. Blackmore

发明人： Dennis F. Rutherford ,  Keith D. Blackmore

IPC分类号： E21D23/06 ,  E21D17/02

CPC分类号： E21D23/063

摘要： A mine roof support includes a roof-engageable beam which comprises a main portion and a further portion which forms an extension of the main portion. The further portion is hinged to the main portion by a pin-less knuckle joint. The further portion includes a part which projects beyond the knuckle joint and beneath the underside of the main portion with which it is engageable to limit pivotal movement of the further portion about the joint. Retaining means provide security of connection of the further portion to the main portion. Means are provided either beneath the main portion or beneath the further portion which are operative upon the further portion for tilting it about the knuckle joint.

摘要翻译： 矿顶支架包括屋顶可接合的梁，其包括形成主要部分的延伸部的主要部分和另外的部分。 另一部分通过无销转向节接头铰接到主要部分。 另外的部分包括突出超过关节关节并且在主要部分的下侧下方的部分，其可与其接合以限制另一部分围绕关节的枢转运动。 保持装置提供了另一部分与主要部分的连接的安全性。 装置在主要部分下方或在另一部分下方提供，其在另一部分上操作以使其围绕关节关节倾斜。

公开(公告)号：US4430026A

公开(公告)日：1984-02-07

申请号：US322283

申请日：1981-11-17

申请人： Nigel Hill ,  Dennis F. Rutherford

发明人： Nigel Hill ,  Dennis F. Rutherford

IPC分类号： E21D23/00 ,  E21D23/06

CPC分类号： E21D23/0043 ,  E21D23/063

摘要： A roof support suitable for use in mines includes roof-engageable means provided with a roof-engageable pad which is so mounted with respect to the remainder of the roof-engageable means as to be movable with respect thereto for exerting a thrust on the mine roof. A linkage is pivotally connected between the pad and the remainder of the roof-engageable means. Actuator means is so pivotally connected to and supported by the linkage that when operated it effects movement of the pad with respect to the remainder of the roof-engageable means, being itself constrained, simultaneously upon such movement, to move bodily with the pad.

摘要翻译： 适合用于矿山的屋顶支撑物包括屋顶可接合装置，其具有屋顶可接合的垫，该屋顶可接合垫相对于屋顶可接合装置的其余部分被安装成可相对于其移动以在矿山顶上施加推力 。 连接件枢转地连接在垫和屋顶可接合装置的其余部分之间。 致动器装置如此枢转地连接到联接件并由支撑件支撑，当操作时，它使得垫相对于屋顶可接合装置的其余部分的运动本身被约束，同时在这种移动时，与衬垫一起移动。

公开(公告)号：US4411558A

公开(公告)日：1983-10-25

申请号：US318218

申请日：1981-11-04

申请人： Dennis F. Rutherford

发明人： Dennis F. Rutherford

IPC分类号： E21D23/00 ,  E21D23/06 ,  E21D15/44 ,  E21D17/05

CPC分类号： E21D23/063 ,  E21D23/0043

摘要： A roof support including a roof-engageable member and a cantilever member, one having parallel elongate compartments with a cover member which has a roof-engageable surface and which overlies the compartments, and the other having parallel and rigid elongate elements slidably fitting into the compartments. The other member also includes a plate, having a roof-engageable surface, which defines the profile in plan of that member and which is so secured to the elements as to be relatively slidable with respect to the roof-engageable surface of the cover member. The transverse widths of the roof-engageable surfaces are such that when the roof-engageable member and the cantilever member are caused by actuator means relatively to slide from a retracted condition to an extended or partially-extended condition one of those surfaces effectively forms a full width extension of the other.

摘要翻译： 一种屋顶支撑件，其包括屋顶可接合构件和悬臂构件，一个具有平行的细长隔室，其具有覆盖构件，所述盖构件具有屋顶可接合表面并且覆盖在所述隔间上，另一个具有可滑动地装配到所述隔间中的平行和刚性的细长元件 。 另一个构件还包括具有屋顶可接合表面的板，其限定该构件的平面中的轮廓，并且其被固定到元件以相对于盖构件的屋顶可接合表面相对滑动。 屋顶可接合表面的横向宽度使得当屋顶可接合构件和悬臂构件由致动器装置相对地从缩回状态滑动到延伸或部分延伸的状态时，这些表面之一有效地形成一个完整的 宽度扩展的另一个。