Screen repair machine |
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| 申请号 | US38007373 | 申请日 | 1973-07-17 | 公开(公告)号 | US3828832A | 公开(公告)日 | 1974-08-13 |
| 申请人 | RAYMOND LEE ORGANIZATION INC; | 发明人 | HARTMAN W; | ||||
| 摘要 | A machine to install screening into the frame of a window or door, which gives an improved seal between the screen and the frame, as well as increasing the production efficiency of the installation. The machine consists of a wheel manually driven by a handle mounted on a frame fitted with rollers, with the wheel serving to roll screening into a groove in the screen frame as the device is rolled along the screen frame. | ||||||
| 权利要求 | 1. Portable apparatus designed to install screening into a groove in a screen frame by rolling the screening into the groove in the frame, said apparatus being adaptable to be mounted onto the frame to be screened and to ride on said frame in use, comprising a machine bracket fitted with a platform member on which a screen frame may be rested, said platform member fitted with freely revolving rollers for the support of said screen frame, a spline wheel rotatably mounted on said bracket and attached to means to rotate said spline wheel, said spline wheel positioned by adjustable means so as to ride on the surface of said screen frame which is opposed to the surface of the frame resting on the platform rollers, and particularly to ride in a groove in said opposed frame surface, such that the spline wheel may force screening lying on said opposed surface between the spline wheel periphery and the said frame surface into the groove in the frame, as the spline wheel is rotated and the apparatus travels along the length of the frame. 2. The combination as recited in claim 1 in which the spline wheel periphery is fitted with teeth, so as to provide wedging action of the screening installed in the groove between sections of the screening engaged by the wheel teeth. 3. The combination as recited in claim 1 in which the plane of the spline wheel is at an angle to a line perpendicular to the plane tangent to the rollers of the platform member, so as to force screening into a groove on a frame resting on said rollers at an acute angle to the plane of the screening after installation so as to tension the installed screening. |
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| 说明书全文 | |||||||
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