公开(公告)号：US4027566A

公开(公告)日：1977-06-07

申请号：US686672

申请日：1976-05-13

申请人： Thomas D. Harrill

发明人： Thomas D. Harrill

IPC分类号： B23D59/00 ,  B23Q1/48 ,  B23Q1/54 ,  B23Q3/10 ,  B27B25/00 ,  B27B13/04

CPC分类号： B23Q1/4804 ,  B23D59/00 ,  B23Q1/5462 ,  B23Q3/102 ,  B27B25/00 ,  Y10T83/655 ,  Y10T83/6667 ,  Y10T83/7151 ,  Y10T83/728

摘要： A horizontal base including a plurality of side by side horizontally spaced apart parallel guides is provided and a follower is selectively removably engageable with any one of the guides for guided movement therealong. A workpiece support is rotatably supported from the follower for angular displacement about an upstanding axis substantially normal to the plane containing the guides and the base is stationarily positionable on the horizontal table of a band saw or jig saw and a workpiece to have a constant radius arcuate cut made therein may be supported from the workpiece support and angularly displaced therewith in order that the blade of the saw may make the desired arcuate cut. The spacing of the parallel guide with which the follower is guidingly engaged from the blade of the saw determines the radius of curvature of the arcuate cut to be made.

摘要翻译： 提供了包括多个并排的水平间隔开的平行引导件的水平基座，并且从动件选择性地可移除地与任何一个引导件接合，以便沿其引导移动。 工件支撑件从从动件可旋转地支撑，用于围绕基本上垂直于包含引导件的平面的直立轴线进行角位移，并且基座可固定地定位在带锯或曲线锯和工件的水平台上以具有恒定的半径弧形 切割在其中可以从工件支撑件支撑并且与其成角度地移位，以便锯的刀片可以进行所需的弓形切割。 从动轮与锯片啮合的平行导轨的间距决定了弧形切割的曲率半径。

公开(公告)号：US4061290A

公开(公告)日：1977-12-06

申请号：US686671

申请日：1976-05-13

申请人： Thomas D. Harrill

发明人： Thomas D. Harrill

IPC分类号： B65H75/40 ,  H02G11/02

CPC分类号： H02G11/02 ,  B65H75/40 ,  B65H75/4471

摘要： A hollow, axially short and generally cylindrical body is provided and is open at one end. The other end of the body includes a closure end wall and a generally centrally disposed stub shaft portion is supported from and projects inwardly of the closure end wall toward the open end body. A wire spool, including a central elongated hollow core, and including a fixed inner end flange at one end is rotatably journaled on the stub shaft portion with the end flange opposing and closely spaced from the inner surface of the end wall. An outer end flange is removably secured over the outer end of the core and substantially close, but is rotatably received in the open end of the body. The outer end flange has a central opening formed therethrough aligned with the interior of the core, the core has an opening formed therein for receving one end of an extension cord wound on the core within the interior of the latter for withdrawal through the central opening in the outer end flange and one side wall portion of the body has an opening formed therein for slidably receving the other end of the extension cord therethrough.

摘要翻译： 提供中空的，轴向短的和大体上的圆柱体，并在一端敞开。 主体的另一端包括封闭端壁，并且大致居中设置的短轴部分从闭合端壁朝向开口端主体支撑并向内突出。 包括中心细长中空芯线并且在一端包括固定内端凸缘的线卷轴可旋转地轴颈支撑在短轴部分上，端部凸缘与端壁的内表面相对并且紧密地间隔开。 外端凸缘可移除地固定在芯的外端上并基本上闭合，但是可旋转地容纳在主体的开口端。 外端凸缘具有与芯部内部对准的中心开口，芯部具有形成在其中的开口，用于接收在其内部缠绕在芯上的延长线的一端，以通过中心开口撤回 本体的外端凸缘和一个侧壁部分具有形成在其中的开口，用于可滑动地接收延伸线的另一端。

公开(公告)号：US4244536A

公开(公告)日：1981-01-13

申请号：US89889

申请日：1979-10-31

申请人： Thomas D. Harrill

发明人： Thomas D. Harrill

IPC分类号： B65H75/40 ,  H02G11/02

CPC分类号： B65H75/4471 ,  B65H75/40 ,  H02G11/02

摘要： A hollow axially short and generally cylindrical body is provided and is open at one end. The other end of the body includes a closure end wall having a central portion which is displaced longitudinally of the body approximately one-half the length thereof toward the open end of the body and a pair of front and rear generally cylindrical aligned spool core sections are disposed within the body in front to rear aligned relation. The front and rear spool core sections include rear and front radially inwardly projecting annular end walls and front and rear radially outwardly projecting circumferential flanges. A generally cylindrical hub including a radially outwardly projecting forward end flange is also provided and the annular end walls of the spool sections are journalled on the hub, the forwardly displaced portion of the rear wall of the body being centrally apertured and a threaded fastener being secured through the hub and the rear wall central portion.

摘要翻译： 提供了一个空心的轴向短的和大致圆柱形的主体，并在一端打开。 本体的另一端包括封闭端壁，该封闭端壁具有中心部分，该中心部分沿主体的纵向延伸大致其长度的一半长度朝向主体的开口端，并且一对前后大致圆柱形的对准的卷轴芯部分是 在前后对齐关系中设置在身体内。 前后卷轴芯部分包括后部和前部径向向内突出的环形端壁和前部和后部径向向外突出的周向凸缘。 还提供了包括径向向外突出的前端凸缘的大致圆柱形的毂，并且卷轴部分的环形端壁被轴颈安装在毂上，主体的后壁的向前移位的部分是中心开孔的，并且螺纹紧固件被固定 通过轮毂和后壁中心部分。