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.
Abstract:
An improved automatic garage door opener system is described, the delay linkage in the motorized door opening mechanism which enables actuation of latch closures for improved security and also provides improved shock cushioning in the system.
Abstract:
A window of a residential roof with a window wing (a folding skylight shutter) which is supportably relieved of weight by an accumulator and which swings open about an upper axis of the blind window frame, the wing after decoupling additionally being able to be turned over about an axis lying substantially in the longitudinal center line, the axial pins of the last-mentioned axis being seated on carrier arms which are articulated in the vicinity of the upper transverse leg of the blind window frame and extend in the direction of the longitudinal legs of the blind window frame. The longitudinal legs of the window wing and the blind frame lie flushly aligned one above the other and the carrier arms including the accumulators which load the arms are arranged in the open angle or corner between the wing and the blind window frame, whereby the free ends of the carrier arms in the open position of the window wing are movable out to a distance with respect to the blind window frame, which distance corresponds approximately to half the length of the longitudinal leg of the wing.
Abstract:
A door and frame assembly is disclosed wherein the door is capable of swinging about either one of two axes, for example, the right or the left side. The mounting of the door to the frame is accomplished by at least paired hinge straps. Each hinge strap pair has two separate members, each consisting of a central portion which is of a length approximately equal to the width of the door, and two hinged end segments, one at each end. One end segment fastens to the door on one side; the other fastens to the frame on the opposite side. The second of the pair of hinge straps is connected to the frame and door in a manner similar to that of the first, except that the door and frame connections are interchanged. Thus, when the door is in its closed position, both of these hinge straps extend across the opening from one hinge axis to the other hinge axis. When the door is opened about one hinge axis, the first strap extends across the frame while the second strap extends across the door. When the door is opened about the second hinge axis, the first strap extends across the door while the second strap extends across the frame.
Abstract:
A lid counterbalance mechanism featuring an arrangement for rendering spring counterbalance effects inactive upon opening movements of the lid through an intermediate opened position, while permitting friction brake counterbalance effects to be active during movements of the lid between the intermediate and fully open positions thereof.
Abstract:
Two sliding doors or window sashes are supported on tracks of two rockers longitudinally juxtaposed on the bottom member of the door or window frame and each carrying two parallel tracks, the two pairs of tracks on respective rockers being aligned when both rockers are in an opening or in a closing position, and only one track of one rocker being aligned with one track of the other rocker when the rockers are in the opening and closing position respectively, whereby the doors or window sashes may both extend in the plane of the frame to obstruct the same or be practically coextensive in the direction of their sliding movement and offset transversely of this direction.