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1. 发明授权

US4392680A Spreader safety device 失效
标题翻译：撒布机安全装置
公开(公告)号：US4392680A
公开(公告)日：1983-07-12
申请号：US353943
申请日：1982-03-02
申请人： Hunter Wolfe
发明人： Hunter Wolfe
IPC分类号： B66C1/14 , B66C1/34 , F16G11/00
CPC分类号： B66C1/14 , Y10T24/3909
摘要： A spreader safety device is herein disclosed which has a ring like member having outwardly flared portions extending toward the axial ends thereof. The ring is sized so as to slidably fit over the spreader attachment element and the spreader cables. However, the ring is further sized to be sufficiently small so as to not slide over the gripping hooks attached to the free ends of the spreader. Accordingly, the ring slides into abutting contact with such hooks. The flared out portions of the ring generally describe two truncated cones very much resembling an hour glass. In operation, when the spreaders are separated for connection with the outside of an object to be hoisted, the safety device slides up the spreaders. When the hooks are then removed from the object and permitted to swing toward each other, the ring immediately falls into abutting engagement with the hooks so as to prevent excessive pendulum swinging of the spreaders and, hence, injury to any personnel standing in the vicinity of the spreaders.
摘要翻译：本文公开了一种吊具安全装置，其具有环形构件，其具有朝向其轴向端部延伸的向外扩张部分。环的尺寸设计成可滑动地配合在吊具附件和吊具电缆上。然而，环的尺寸进一步尺寸足够小以便不会在附着于扩展器的自由端的夹紧钩上滑动。因此，环滑动地与这种钩子抵接接触。环的扩张部分通常描述非常类似于小时玻璃的两个截锥体。在操作中，当吊具分离用于与要提升的物体的外部连接时，安全装置向上滑动吊具。当钩子被从物体上取下并被允许相互摆动时，环就立即与钩子相接合，以防止吊架过度的摆动摆动，从而伤害任何驻在附近的人员吊具。

2. 发明授权

US4270339A Variable width tool attachment for use with a vehicle 失效
标题翻译：用于车辆的可变宽度工具附件
公开(公告)号：US4270339A
公开(公告)日：1981-06-02
申请号：US876313
申请日：1978-02-09
申请人： Hunter Wolfe
发明人： Hunter Wolfe
IPC分类号： A01D41/14 , D01H13/00 , E01H5/00
CPC分类号： A01D41/148
摘要： A variable width tool attachment for use with a vehicle is herein described as generally comprising a complete tool which is split vertically and in the direction of vehicle travel to form two half tools. The two half tools are slidably mounted for mutual relative movement in the direction normal to the direction of vehicle travel, i.e, in the direction of tool width. A hydraulic ram cylinder or the like is operable to move the two half tools to form the desired width.In one form of the invention, a horizontal cutting header is provided with a chain cutter and a chain drive having at least one moveable idler sprocket to take-up and let-out chain in the width direction whenever the width of the tool is varied.
摘要翻译：这里描述了用于车辆的可变宽度的工具附件，通常包括一个完整的工具，该工具在车辆行驶方向上垂直分开并形成两个半工具。两个半工具可滑动地安装，以便在垂直于车辆行进方向的方向上相互相对运动，即沿刀具宽度方向。液压柱塞缸等可操作以移动两个半工具以形成所需的宽度。在本发明的一种形式中，每当工具的宽度变化时，水平切割头设置有链条切割器和链条驱动器，链条驱动器具有至少一个可移动惰轮链轮，以在宽度方向上卷取和排出链条。

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