摘要:
A steerable trailer to be drawn by a vehicle is provided that has a generally horizontal frame to which are mounted two wheel supports. Each wheel support is pivotably mounted to the frame to rotate about a vertical axis and to support a wheel rotatably mounted to the wheel support to rotate about a horizontal axis. A steering pulley is also pivotably mounted to the frame to rotate about a vertical axis, and a tongue adapted for temporary attachment to the drawing vehicle is attached to the steering pulley. Any angular displacement imparted to the steering pulley by the drawing vehicle, through the tongue, is communicated from the steering pulley to each wheel support by a flexible tensile member, resulting in a proportional angular displacement of each wheel support. The flexible tensile member forms a continuous FIG. 8 loop to rotate each wheel support in a direction opposite to that of the steering pulley.
摘要:
A steerable trailer to be drawn by a vehicle is disclosed having a pair of first and a pair of second steerable wheels. Each of the steerable wheels are retained by a wheel support which is rotatable relative to the trailer frame about a steering axis. A tongue is pivotably attached to the frame for connecting the trailer to the towing vehicle. A flexible tensile member is attached to the tongue and extends about an engagement surface affixed to the wheel supports. The first and second wheel supports rotate in opposite directions in response to the pivoting of the tongue relative to the frame to steer the trailer.
摘要:
The present invention provides a window frame design that is adapted to receive at least two light-panels. The window frame comprises a stepped frame section that includes a lower step surface and an upper step surface. The lower step surface is adapted to receive a first light-panel so that a section of the first light-panel lies flush against the lower step surface. Similarly, the upper step surface is adapted to receive a second light-panel so that the second light-panel lies flush against the upper step surface. The window frame design of the invention can be either incorporated into a skylight frame that may be attached to a curb unit on a roof or it may be an integral part of a skylight frame-curb assembly that also contains a curb section. In another embodiment of the invention, a window frame design which directly incorporates one or more light-panels during molding is provided.
摘要:
The present invention provides a window frame design that is adapted to receive at least two light-panels. The window frame comprises a stepped frame section that includes a lower step surface and an upper step surface. The lower step surface is adapted to receive a first light-panel so that a section of the first light-panel lies flush against the lower step surface. Similarly, the upper step surface is adapted to receive a second light-panel so that the second light-panel lies flush against the upper step surface. The window frame design of the invention can be either incorporated into a skylight frame that may be attached to a curb unit on a roof or it may be an integral part of a skylight frame-curb assembly that also contains a curb section. In another embodiment of the invention, a window frame design which directly incorporates one or more light-panels during molding is provided.
摘要:
A fenestration is provided having a peripheral frame defining a frame opening, the frame being adapted to being installed upon an opening in a building panel. Cooperating with the peripheral frame is a laminated panel which is structurally mounted to and sealingly spans the peripheral frame opening to form a structural and leak proof interconnection. The laminated panel is formed of three structural layers; an outer and inner plastic sheet and a resin layer interposed therebetween which are collectively bonded together to form a structural laminate, the laminated panel being capable of transmitting visible light therethrough.
摘要:
The present invention includes a protective sleeve assembly for cords having a longitudinal flexible sleeve for retaining the cords therein. The invention discloses various embodiments for obtaining a desired sleeve length. One such sleeve embodiment includes a pair of lengthwise fasteners affixed coterminously along its seam so that the sleeve and fasteners may be separated into a pair of sleeves. A method for protecting cords is provided as well.
摘要:
A reciprocating saw is provided having a motor oriented within a housing for operably driving a saw bar and blade holder in a reciprocating motion. The blade holder has a longitudinal slot for receiving a saw blade, and a transverse aperture extending into the longitudinal slot for receiving a follower. A sleeve is pivotally mounted upon the body, and has a circum-axial cam groove formed therein cooperating with the follower. Rotation in a first lock direction urges the follower into the longitudinal slot for engaging the saw blade and rotation of the sleeve in a second unlock direction allows the follower to retract. A biasing member is included for biasing the sleeve in the first lock direction. The sleeve central bore is adapted to provide clearance for the follower such that the sleeve is permitted to axially translate relative to the body for assembly or disassembly of the blade holder.
摘要:
A motorized electric toothbrush in a display package includes a first switch to facilitate automatic motorized operation of the toothbrush. When the first switch is in one position, applying a force to a brush head portion of the toothbrush actuates a second switch and causes the motor to engage. A package body includes a flexible portion to allow an operator to apply a force to the brush head portion through the package body. The removable brush head portion is easily replaced when the bristles become worn, or to allow use of the toothbrush by another user.