Abstract:
A garage door opener security system, for preventing the unauthorized opening of a garage door, mounted within a dwelling. The garage door opener has a track mounted to the dwelling, and a truck slidably mounted on the track which is operatively engaged with the door. A release lever extends downward from the truck to allow manual release and opening of the garage door. The security system prevents unauthorized operation of the release lever by providing a pair of security plates which extend downward from the truck on either side of the release lever. The security plates thereby prevent an unauthorized person from extending an object into the garage from outside in an attempt at operating the release lever.
Abstract:
A new and improved garage door opening and closing system comprising a lower bar pivotably connected to the upper extent of a garage door. An associated intermediate bar is coupled with respect to the lower bar. An upper bar has an upper end pivotably connected to a door actuator. A piston is mounted to the lower end of the upper bar. A cylindrical housing encompasses the piston. An apertured upper cap at the top end of the housing slidably receives the upper bar. An apertured lower cap is releasably secured to the upper end of the intermediate rod. An upper coil spring is mounted between the piston and the upper cap. A lower coil spring is located between the piston and the lower cap.
Abstract:
A safety cabinet for the storage of flammable or combustible materials that has doors and a closure mechanism designed to automatically close and latch the doors in the event of fire. The closing mechanism is fully automatic and eliminates mechanical timing features as well as provides an automatic positive method and structure of closing the doors of the cabinet to insure a complete seal and lock. Furthermore, the latching assembly is operated using a handle which may be rotated into a tucked position. In this position, the handle rests in a cavity formed within the doors of the cabinet for protectively shielding the latching assembly to prevent accidental or unauthorized opening and handle breakage.
Abstract:
A safety cabinet for the storage of flammable or combustible materials has doors designed to automatically close in a specified sequence. The door sequencing device has three components: a stop bracket mounted to one door, a cam bracket mounted to the other door and a slide bar with a roller on one end mounted to the inside surface of the top of the safety cabinet. The slide bar is operably associated with the two brackets such that it blocks the movement of the stop bracket on one door until the cam bracket of the other door engages the roller and removes the slide bar from the path of the stop bracket thereby allowing the second door to close.
Abstract:
Automatic slide door mechanism includes a slide rail secured to a slide door of a vehicle and which is extended in the fore-aft-direction of the vehicle, a slide rail guide holding the slide rail and held by an arm rotatably coupled to a main vehicle body, swing driving actuator for rotating the arm towards inside or outside of the vehicle, and slide driving actuator separate from the swing driving actuator, the slide driving actuator being held by the slide rail guide and adapted for actuating the slide door and the slide rail in the fore-and-aft direction of the vehicle. This assures smooth and prompt operation during movement of the slide door in the fore-and-aft direction of the vehicle and a sufficiently large torque during movement of the slide door towards inside or outside.
Abstract:
The invention relates to a hinge for the constraining of a hatch or door from a support structure. The hinge is of the type constituted by a first part constrainable from the support structure and by a second part constrainable from the closing door of the support structure itself. The second part is pivoted about respective parallel axes arranged near the lower edge of the door. A lower arm is rigidly and movably connectable to a lower portion of the first part. The lever has an upper edge slidably in contact with an idler wheel supported by an upper portion of the first part. The lever exhibits a first substantially straight tract, a second curved tract with at least one center of curvature arranged above the lever, and a third tract, also curved with at least one center of curvature arranged above the lever and connected to the second tract by an arched projection with at least one center of curvature arranged below the lever.
Abstract:
A canopy garage door opener including a mechanism for interconnecting a horizontal, rectilinear reciprocating carriage drive means to a canopy door having a first axis fixed to the door and movable vertically in a guide means and a pair of crank arms pivoted at the top of a door opening and to a horizontal axis fixed with respect to the door. The mechanism includes a lever pivoted to the carriage forming part of a quadrangular link assembly pivoted to the door at one apex and connected by another link to the door from an adjacent apex. Guard means including fixed and movable plates are disposed on both sides of the mechanism to shield it, the movable plates being pivotally connected to the mechanism and being rotated by a cam and follower connection to the fixed plates.
Abstract:
A window, particularly designed to be installed in an inclined roof, comprises a top-hinged sash which via a lifting arm is connected with a slide shoe displaceable along a guidance of a lateral frame member. An intermediate member is provided with a transverse pin adapted to be connected with a pocket in the top side of the slide shoe, and the intermediate member is loaded or biased in a direction towards the lower end of the guidance by means of a spring. A spacer serves to hold the intermediate member ready for engagement. When the window has been installed in the roof, the appropriate pocket to be engaged by the transverse pin is selected with due regard to the roof inclination, i.e. the pocket resulting in a desired opening force acting on the sash, which is then swung open until the transverse pin engages the selected pocket, whereupon the sash is swung slightly in its closing direction to release the spacer for removal. The spring may be inserted in the window in prestressed condition by the manufacturer and yet be prevented from exerting any opening force on the sash during handling or installation of the window.
Abstract:
A jail-cell door is suspended from an overhead carriage, for horizontal displacement between closed and open positions, and an elongate slide bar has a horizontal lost-motion connection to the carriage. The slide bar mounts a reversible electric motor and is continuously engaged to the driven one of two rollers from which the carriage and its cell door are suspended; the shaft for the other suspension roller is journaled in the carriage. For driving the cell door in the door-opening direction, the outer lost-motion limit determines an expanded wheelbase of door suspension, and for driving the cell door in the door-closing direction, the inner lost-motion limit determines a slightly reduced wheelbase of door suspension. The slide bar carries cam formations at or near its respective ends for determining locking-bolt action only at the fully closed and fully open positions of the door, and a deadlock device is pivotally carried at one end of the slide bar, serving the door-closed condition. Assurance against bodily harm upon door closing is inherent in the design of drive-roller engagement to the rail on which both rollers travel, the engagement being to provide drive-roller slip at a predetermined threshold of tractive force.
Abstract:
A door device for furniture, which has a plurality of door members provided laterally in opposition to each other in a front opening of a furniture body, longitudinal sliders capable of moving the door members in the longitudinal direction with respect to the furniture body, and a lateral slider capable of moving the door members in the lateral direction with respect to the furniture body, the front opening being opened by sliding one of the door members forward and then sideways to superpose the door member on the front surface of the adjacent door member, a plurality of support rails fixed to the portions of the furniture body which correspond to the door members, and a support roller which is adapted to engage a support rail on the side of the door member adjacent to the door member to be opened, when the lateral slider is extended to more than a predetermined extent during the lateral sliding of the door member to be opened to cause the lateral slider to be inclined slightly due to the load of the same door member, provided on the lateral movable rail so that the support rollers can be rotated freely.