Патент USA US2025566код для вставки
2,025,566 w G. B O G A R T ELEVATOR GATE Filed Maron 3, 1934 - l, ‘ A ` INVENToR ATTORNEY-5 2,025,566 Patented Dec. 24, 1935 UNITED' STATES PATENTv OFFICE 2,025,566 ELEVATOR GATE William G. Bogart, Cincinnati, Ohio, assignor to The Warner Elevator Manufacturing Company, Cincinnati, Ohio, a corporation of Ohio Application March 3, 1934, Serial No. 713,899 4 Claims. This invention relates to improvements in slid ing gates of bar or lattice type, preferably con stituting a plurality of rigid bars arranged per pendicular to the direction line of sliding travel (Cl. 20-20) consists of a sheet metal base strip 2 longitudinal ly corrugated providing a central recess or chan nel and opposingly inclined longitudinal edge ñanges 3, 3, and a face strip 4 of sheet metal, 5 connected in a non-articulated manner to> avoid longitudinally corrugated or of V-iorm in cross any buckling or side bulging when the gate travels in a straight course, yet sufficiently flexible for crimped over the edge flanges 3 of the base strip rounding or traversing a sharp curve in the unitarily connecting said strips. This structure course. provides a very rigid and extremely light weight An object of the invention is to provide a gate of bars or strips arranged in lattice design in which the laterals constitute flexible metal strips. Another object of the invention is to provide a lattice type sliding gate of yielding structure i5 to traverse sharp curves. Various other features and advantages of the invention will be more fully set forth in the de bar as well as ornate. The bars, of a given num- 10 ber for making a deñnite width of gate, are ar ranged in spaced parallelism and secured to gether by a plurality of flexible metal cross strips 5, preferably of uniform spacing apart and riveted or permanently attached to each vertical bar. 15 As shown in Figure 5 for the bar of sheet 'metal hollow construction the cross strips 5 are riveted scription of the accompanying drawing, in which: to the base strip 2 of the bar, thereby concealing Figure 1 is a front elevation of the improved 20 lattice type sliding gate shown as a closure for the heads of the fasteners from the outer or face an elevator cab. Figure 2 is a top plan view of the same. Figure 3 is an enlarged fragmentary section on line 3_3, Figure l, detailing the hanger and 25 guide devices. Figure 4 is a plan view, inner side, of a section of the gate, showing an operating handle applied thereon and a flexible cross strip for connecting the spaced vertical bars. 30 Figure 5 is a horizontal section through a sec tion of the gate rounding a curve or corner. side of the gate. _ a track or rail l. The hanger provides a down wardly extended shank engaged into the upper open end of the hollow bar and riveted or fixed 25 to the inner side of the base strip thereof. The rail or track as shown in the present in stance, is mounted to the top of the cab 8 and extends from across the full width of the door opening or front of the cab around at right 30 angles along one side of the cab. The two rela tively right angular sections of the continuous for private residence elevator lcabs having a very limited floor area. These types of elevators are designed for installation in already built resi 40 dences, generally for a one floor rise service, traversed. wherein only a small space for an elevator is available. For such use it is‘desirable to have a very secure gate, of reduced weight, freely and easily operated and of lattice type, with no bind 45 ing of the parts one against the other interfering to the opening or closing movements. Referring to the drawing, I indicates a plu rality of vertical bars, preferably of uniform length, which may be either of solid, tubular 50 or sectional structure, several different construc tions of bars being herewith illustrated. One form, as illustrated in Figures 3 to 5 inclusive, the bars each are composed of sheet metal ap propriately fabricated for lightness and stability 55 and of hollow or tubular cross section. Each bar 20 Each vertical bar l of the series is independently suspended from a roller hanger 6 engaged upon Figure 6 is a horizontal section through section of gate illustrating a. modiñed form of bar. The gate is primarily contemplated as a sliding 35 closure for elevator cabs requiring a full cab width door opening, and is particularly adaptable 5 section, with its opposite longitudinal edges rail or track join in a rounded or curved juncture of comparatively short radius which will track the hanger rollers without binding or jumping the 35 rail for any speed at which the gate may be The gate is also guided or tracked at its lower end, as is customary in sliding gates, and for this purpose a grooved or channeled track or guide way 40 9 is provided, having a course corresponding to that of the top rail or track 1. Each vertical gate bar I of the series preferably is individually guided at its lower end to secure the same against lateral displacement, having a sliding connection 45 with the base rail 9. Therefore, the lower end of each vertical bar l has a rigid metal shank eX tension lü secured to the bar in substantially the same manner as the shank of the hanger at the top end of the bar, and engaged into the channel of the base guide way 9. ' . The ñexible metal straps 5 yieldingly connect the vertical bars and readily bend to any‘radius of a track curve, thereby enabling the production of a resilient lattice type of gate with the bars 55 2,025,566 in spaced connection under sufficient stability to comprising a plurality of rigid bars arranged-in allow a considerable Width of gate to be con veyed by imparting a traversing pressure to an spaced parallelism and one or more iiexible strip end or leading bar of the series Without causing any buckling or interference to the free travel of ing the bars in their spaced parallelism and pro- ' viding a flexible coupling therefor to accommo date. for gate travel in a curved path of the rail on Which the gate rides. the gate or any of its individual bars. As shown in Figure 4, a handle Il, extending from a base plate I2 ñxed to two leading bars of the gate is provided on the inner side of the gate. In the modiñed form shown in Fig. 6, the verti cal bars I are either solid and slotted to engage a cross strap 5 therethrough and ñxed by a screw or rivet I3, or the bars, each may constitute a pair 15 of solid strips of duplicate cross sectional con metal straps ñxed to each of said rigid bars hold 3. A sliding gate of the character disclosed, comprising a plurality of rigid bars arranged in spaced parallelism and a plurality of flexible strip 10 metal straps ñxed to each -of said rigid bars hold ing the bars in their spaced parallelism and pro tour, one or both notched in the inner side or viding a ilexible coupling therefor to accommo date for gate travel in a curved path of the rail cn which the gate rides, said rigid bars formed of longitudinally corrugated sheet metal strips joining faces to receive the iiexible cross straps, crimped together at longitudinally meeting edges. and the parts suitably secured together. Having described my invention, I claim: 1. A sliding gate of the character disclosed, 20 comprising a plurality of rigid bars arranged in spaced parallelism perpendicular to the line of gate travel and a plurality of flexible strip metal cross straps fixed to each of said rigid bars hold 25 ing the bars in their spaced parallelism and pro viding a flexible coupling therefor to accommo date for gate travel in a curved path of the rail on which the gate rides. 2. A sliding gate of the character disclosed, 4. A sliding closure for a door opening, com prising a plurality of rigid bars joined together in parallelism by ñexible strip metal cross straps, 20 each bar rigidly attached to the cross straps hold ing the bars in their spaced parallelism and pro viding a flexible coupling therefor to accommo date for gate travel in a curved path of the rail on which the gate rides, and a hanger respectively 25 ñxed to the upper end of each rigid bar for riding a stationary guide rail and suspendingly support ing the bars individually. WILLIAM G. BOGART.