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3. 发明授权

US4778194A Tractor hitch and adjustable arm 失效
标题翻译：拖拉机搭接和可调臂
公开(公告)号：US4778194A
公开(公告)日：1988-10-18
申请号：US72637
申请日：1987-07-13
申请人： David C. Koch , Thomas B. Tuttle , Max A. Juengel
发明人： David C. Koch , Thomas B. Tuttle , Max A. Juengel
IPC分类号： A01B59/00 , F16B7/06 , F16B39/06 , F16C7/06 , F16B7/00
CPC分类号： F16C7/06 , A01B59/004 , F16B39/06 , F16B7/06 , B60G2206/1112 , Y10T403/295
摘要： A multi-arm tractor hitch with an improved adjustable arm having a pair of threaded end members with slots therealong, a middle member engaged with the end members in turnbuckle fashion, a locking member movably, preferably pivotably, attached to the middle member and having tabs positioned to engage the slots of both ends members when the locking member is in a lock position, to firmly lock them and the middle against relative rotation without any connection beyond the middle member.
摘要翻译：一种具有改进的可调节臂的多臂牵引车，其具有一对具有槽的螺纹端部构件，中间构件以螺丝扣方式与端构件接合;锁定构件，可移动地优选地可枢转地附接到中间构件，并且具有突出部定位成当锁定构件处于锁定位置时与两端构件的槽接合，以便在没有任何连接超过中间构件的情况下使其牢固地锁定住它们并使中部抵抗相对旋转。

4. 发明授权

US3988107A Sagger construction 失效
标题翻译： Sagger建筑
公开(公告)号：US3988107A
公开(公告)日：1976-10-26
申请号：US604001
申请日：1975-08-12
申请人： David C. Koch
发明人： David C. Koch
IPC分类号： F27D5/00
CPC分类号： F27D5/0012
摘要： A sagger construction is disclosed for holding refractory articles during firing. The construction comprises at least two, separable, normally bottomless, topless, multi-sided saggers placed atop each other in substantial vertical alignment to define a hollow columnar enclosure which is adapted to contain the refractory articles. The topmost sagger defines an entrance to the columnar enclosure, while the bottommost sagger has closure means along the bottom thereof and contains exit means for release of the refractory articles such as after firing. This construction not only substantially increases the volume of refractory material which can be fired at one time, but also appreciably reduces labor requirements while prolonging the useful life of the individual saggers.
摘要翻译：公开了一种用于在燃烧期间保持耐火物品的摆动结构。该结构包括至少两个可分离的，通常无底的，无侧倾的，多边的彼此垂直放置的多个侧面的s in，以确定适于容纳耐火物品的中空柱状外壳。最上面的下颚定义了柱状外壳的入口，而最下面的下颚具有沿其底部的封闭装置，并且包含用于释放耐火物品的出口装置，例如在点火之后。这种结构不仅大大增加了一次可以烧制的耐火材料的体积，而且显着降低了劳动力要求，同时延长了各个s the的使用寿命。

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