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    • 2. 发明授权
    • Slidable brush and screw linear drive arrangement
    • 可滑动刷和螺丝直线驱动装置
    • US4345515A
    • 1982-08-24
    • US235271
    • 1981-02-17
    • David Holt
    • David Holt
    • A47J37/08F16H25/24
    • F16H25/2409A47J37/0857Y10T74/18688
    • A linear drive arrangement comprises a prime mover which is capable of rotatably driving a screw threaded rod. A carriage is mounted on the rod and carries a plurality of bristles, for example in the form of a brush, which bristles contact the surface of the screw threaded rod. Rotation of the rod by the prime mover causes the bristles to follow screw thread of the rod to drive the carriage along the rod. The advantage of this is that no clutch mechanism is required as if force is applied to the carriage either to prevent it from moving along the rod or to push it along the rod, the bristles will flex to ride over the screw threaded surface of the rod.
    • 线性驱动装置包括能够旋转地驱动螺杆的原动机。 托架安装在杆上并且承载多个刷毛,例如以刷子的形式,刷毛接触螺杆的表面。 原动机旋转杆会导致刷毛沿着杆的螺纹移动,以沿杆移动滑架。 这样做的优点是不需要离合器机构,就像将力施加到滑架上以防止其沿着杆移动或者沿着杆推动,刷毛将弯曲地骑在杆的螺纹表面上 。
    • 4. 发明授权
    • Railing kit for a utility cart
    • 用于实用车的栏杆套件
    • US09365246B1
    • 2016-06-14
    • US14519963
    • 2014-10-21
    • David Holt
    • David Holt
    • B62D33/033
    • B62D33/033B62B1/14B62B1/204
    • A railing kit for a utility cart including two side panels, a front panel, and a rear panel, each panel has a top rail and an identical bottom rail. A first, second, third and fourth notch are disposed on each of a respective panel. Each of the first notches engages a respective one of the fourth notches, and each of the second notches engages a respective one of the third notches. At least one pair of beams are disposed on the top and bottom rails in a position perpendicular thereto. A connecting member is disposed on the lower end of each beam, each connecting member is configured to securingly engage and alternately disengage a utility cart slot. A fifth notch is centrally disposed on the upper end of each beam. The railing kit for a utility cart includes additional accessories configured to engage at least one of the fifth notches.
    • 一种用于实用车的栏杆套件,包括两个侧面板,前面板和后面板,每个面板具有顶部导轨和相同的底部导轨。 第一,第二,第三和第四凹口设置在各个面板的每一个上。 每个第一切口接合相应的一个第四凹口,并且每个第二凹口接合第三凹口中的相应一个。 至少一对梁在与其垂直的位置上设置在顶部和底部轨道上。 连接构件设置在每个梁的下端,每个连接构件被构造成固定地接合并且交替地脱离实用车槽。 中心设置在每个梁的上端的第五个凹口。 用于实用车的栏杆套件包括配置成接合第五凹口中的至少一个的附加附件。
    • 7. 发明授权
    • Electric toaster
    • 电烤箱
    • US4345513A
    • 1982-08-24
    • US235272
    • 1981-02-17
    • David Holt
    • David Holt
    • A47J37/08
    • A47J37/0857Y10T74/18688
    • A toaster for toasting a slice of bread comprises a casing in which a reciprocable carriage is located and is movable towards and away from an aperture defined by the casing through which aperture a slice of bread when mounted on the carriage can pass. A pair of enclosed electric bar heating elements is disposed within the casing respectively adjacent opposed side edges of the casing defining the aperture. A motor arrangement is provided for the carriage which can thereby be driven from a first position remote from the aperture into a second position at a predetermined speed. In this way a slice of bread mounted on the carriage can be made to pass between the elements to toast both sides of the slice progressively as the slice passes out of the casing through the aperture. The degree of toasting is determined by the speed of movement of the carriage.
    • 用于烘烤面包的烤面包机包括壳体,其中可往复运动的滑架位于该壳体中,并且可移动地朝向和远离由壳体限定的孔径移动,当安装在滑架上时,该切片通过该开口可以通过。 一对封闭的电杆加热元件设置在壳体内,分别邻近限定孔的壳体的相对的侧边缘。 为滑架设置电动机装置,从而可以以预定的速度从远离开口的第一位置驱动到第二位置。 以这种方式,可以使得安装在托架上的一片面包在元件之间通过,当切片从套管穿过该孔时,逐渐吐出切片的两侧。 烘烤程度由滑架的运动速度决定。
    • 9. 发明授权
    • Safety switch assembly
    • 安全开关总成
    • US07067745B2
    • 2006-06-27
    • US11095781
    • 2005-03-31
    • David Holt
    • David Holt
    • H01H19/58
    • H01H27/002H01H2027/005
    • A rotary safety switch assembly is disclosed in which electrical contacts are movable from a power supply OFF position to a power supply ON position by movement of a rotary member contained within a housing, the electrical contacts comprising first stationary contacts and second movable contacts, and in which the first stationary contacts are carried by a housing part and the second movable contacts are carried by the rotary member and are movable therewith in an arc about said predetermined axis to make and break contact with the first stationary contacts in response to movement of the rotary member by the actuator.
    • 公开了一种旋转安全开关组件,其中电接触件可通过包含在壳体内的旋转构件的运动从电源关闭位置移动到电源接通位置,电触点包括第一固定触点和第二可动触点 所述第一固定触头由壳体部分承载,并且所述第二可动触头由所述旋转构件承载,并且能够围绕所述预定轴线以弧形移动,以响应于所述旋转构件的移动而与所述第一固定触点断开接触 会员由执行器。
    • 10. 发明授权
    • Statistical thesaurus, method of forming same, and use thereof in query
expansion in automated text searching
    • 统计词库,形成方法,以及在自动文本搜索中的查询扩展中的使用
    • US5926811A
    • 1999-07-20
    • US616883
    • 1996-03-15
    • David James MillerXin Allan LuJohn David Holt
    • David James MillerXin Allan LuJohn David Holt
    • G06F17/30G06F17/21
    • G06F17/30737Y10S707/917Y10S707/99933Y10S707/99934Y10S707/99935Y10S707/99937
    • A statistical thesaurus is built dynamically, from the same text collection that is being searched, allowing improved generation of expanded query terms. The thesaurus is dynamic in that thesaurus records are collected, ranked, accessed, and applied dynamically. Thesaurus "records" are actually formed as indexed documents arranged in "collections". The collections are preferably distinguished based on text source (court cases versus news wires versus patents, and so forth). Each record has terms assembled in indexed groups (or segments) which inherently reflect a ranking based on relevance to an initial query. After an initial query is received, the appropriate collection(s) of records may be searched by a conventional search and retrieval engine, the searches inherently returning records ranked by degree of relevance due to the record indexing scheme. A record ranking scheme avoids contamination of relevant records by less relevant records. The record selection and the expansion query term generation processes are each divided into parallel threads. The separate threads correspond to respective text sources to enable the improved expansion query term generation to be provided in real time.
    • 统计词库是从正在搜索的相同文本集合中动态构建的,允许改进扩展查询词的生成。 词库是动态的,因为词典记录被收集,排序,访问和动态应用。 词典“记录”实际上是作为“集合”中排列的索引文档形成的。 收藏品最好根据文本来源(法庭案件与新闻线对专利等)区分开来。 每个记录都有汇编在索引组(或分段)中的条款,这些组根据初始查询的相关性固有地反映排名。 在接收到初始查询之后,可以通过常规搜索和检索引擎来搜索适当的记录集合,由于记录索引方案,搜索本质上返回由相关程度排列的记录。 记录排名计划避免相关记录的污染较少相关记录。 记录选择和扩展查询项生成过程分为并行线程。 单独的线程对应于相应的文本源,以使实时地提供改进的扩展查询词生成。