US1163065A - Sliding door. - Google Patents

Description

D. B. BRYAN, DEC'D. M. B. BRYAN,ADM1N1STRATR| SLIDING DOOR.

APPLlcATloN F|LED1UNE\5.1914.

Patented lhx 7,1915.

2 SHEETS-SHEET l.

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IIIIILIIII D. B. BRYAN, DECD.

M. B- BRYAN.ADM|N|STRATR1X sumNG Dona. APPLICATION Fl-LED IUNE 15| 1914. 4 Ll. Patented Dec. 7, 1915.

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of Lexington,

amarrar nieren.,

panini. Le. Buren', rnnciiasmi, LATE 0F LEXINGTQN, KENTUCKY, BY MARY B. BRYAN',

einen co., or new Yoan, Iv. Y., a

CORPORATION OF NEW YORK. K

SLEDING- D003.

To @El ywhom 'it may concern:

Be it known that I, MARY B. BRYAN, a 'citizen of the United States, and a resident county of Fayette, and State of Kentucky,make this application as ad- ;ministratrix of the estate of DANIEL. B. BRYAN, deceased, late a lcitizen of the United States and a resident of said Lemngtdn, Fayette county, Kentucky, and that said Daunen B. BRYAN, deceased, invented certain new and useful Improvements in Sliding Doors, of which the following is a specication.

The invention referred to relates to 1mprovements in doors of the' type in which a door or door sectionis mounted in a substantiallygvertical plane, in its closed position, covering the doorppening, and upon opening is swung upwardly and inwardly into 'an approximately horizontal plane above the door-opening, and to means for operating such doors. Doors of this charac* ter are particularly adapted for use in facl Ytinies, freight sheds andthe like, where large doorway openings and large heavy doors are often required. In such doors Athe opening movement'comprises a lift in a vertical direction and a swinging movement from the vertical into the final horizontal position.

The object of' the present inventionis to provide devices Acalculated to facilitate the change in direction during the opening of the door, from the vertical rise, or movement in one direction, to the swinging movement into a horizontal, or dierent plane from that in which the doorway opening is situ-Q ated.

A door of the type improvement is adapted to be applied is described in patent to Schwemlein, 1,069,733, dated August 12, 1913, although the 'present invention is, not limited in its usefulness to doors of the particular description referred to. Such doors comprise two or more sliding panels or sections, the lower section or Sections being first raised, in opening, into guideways formed on the facel of the upper ,sectiom after which a continuance of the ylifting movement results in a Swingin of the nested sections about a sliding or rol ing 'V`pivot, fwhich movement is controlled by links pivoted te the top door section and the fixed frame ofvthe doorway. If, in such a struc? Specification of Letters Fatent. Application filed lune 15, 1914.

to which the present Patented Dec. t, i915. serial no, 845,114.

ture, the supporting links make only a slight angle to the vertical, when the door is in ctosed position, a considerable effort may be required to start the door in its swinging` movement away from the vertical, since the lifting force is exerted in a vertical direction. The present invention overcomes this diliculty by providing devices whereby the top of the door is pressed away from the vertical plane at the moment whenthe inward swinging movement of the door is to begin.

ll'n the embodiment of the invention which is considered particularly effective these devices take the form of bell-crank levers pivoted on the topsection of the door, which levers are caused to exert a leverage against the wall or iiXed member adjacent the opening, when the arms of the levers are contacted by members moving upwardly with a lower section 'of the door, to start the inward movement of the top of the door away from the vertical plane. y

Inorde'r that the invention nay be more clearly understood, attention is hereby directed to the accompanying drawings, illus- -trating certain embodiments of the invention.

In the drawings, Figure 1 is a front view of a three-section door equipped with the present improvements, the door being in closed position; Fig. 2 is a vertical section through the door with the sections thereof in closed position; Fig. 3 is a partial vertical section similar to Fig. 2, in which the swinging movement of the door has begun., and Fig. 4 is a similar partial vertical section with the nested door sections moved into horizontal position above the doorway.

Referring to' the drawings, the door illustrated is provided with lower, intermediate and top sections 1, 2, and 3 respectively, it being understood that the invention is equally 'applicable to a two-section door. Section l is slidably mounted in vertical fixed guideways 4, and section 2 in parallel fixed guideways 5. The top section 3 is secured within or its formed integral with a fname or carrier 6, which is provided with vguldeways 7 and 8, which, in the normal or closed position of the carrier shown in F ig, .2, are in alinement with the guideways 5 and i on the door frame This constructionprniits the sections l and 2 to be moved into the alining guideways 8 and 7 of the carrier, on the door section 3, after which the carrier with the t-hree sections contained therein is swung' into the horizontal position shown in Fig. 4, the arrangement being such that a. continuance of the lifting movement which carries the lower sections into the carriers, swings the carrier, together with the upper and lower door sections, about a pivotal point.

In the construction illustrated, the carrier G is provided near its lower edge with rollers 9, which travel on vertical tracks or surfaces 10. The carrier is supported by links 11,

`which are pivotally mounted on pins 12 carried by brackets 13 secured to the wall 1-1 above the doorway. The links are pivoted to the'carrier at 15. usually in line with the innermost carrier-guideway 8, and above the middle of the carrier. The carrier, in the form of door illustrated has a rigid member 1G, usually an I-beam or other structural shape, extending across the top of the carrier and constituting an abutment against which the lower door-sections strike when raised fully into the carrier.

In the door illustrated, the construction is such that the turning of hand crank 16, at one side of the door frame, raises door- sections 1 and 2 into their guides S and 7 in alinement with section 3, after which continued movement of crank 16 results in the swinging movement of the carrier with all three door-sections nested therein, as stated. A sprocket wheel 17 is mounted on the shaft ofthe hand crank and sprocket chain 18 passes around this wheel and around a. sprocket wheel 19 on a shaft 20 carried by a bracket 21 at the upper end Fig. 1. A gear 22 on the shaft 2O meshes with gear 23 on a shaft 24 also carried by bracket 21. Sprocket wheels 25 and 26 on shaft 2-L carry sprocket chains 27 and 28, the former extending downwardly along the right side of the door frame and attached to the bottom door-section by means of a. bracket 25). and the latter extending across the top of the frame. around a guide pulley or sprocket 30, and down the left side of the frame to a connection with the bottom (huir-section by means of bracket 31. The other ends of chains 27 and 28 are conuected'to a eounterwveight 32 at the right side of the door frame.

In the construction illustrated. the doorsections are connected for operation as follows:--,(bains 33 are secured to the top corners of bottom section 1. pass around rollers 34 at the bottom of section 2, and are secured to the. lower corners of section 3. The bottoni section being raised by operation of the hand crank. section 2 will rise at half the speed of bottoni section 1` and the two sections will simultaneously arrive 0f the door 'bell-cranks about their pivots.

.fi-ame. above the hand crank, as shown in i angle which in parallel relation to section 3, in their guides in the carrier. If a two-section door is employed instead of 4a three-section door as shown, the means for lifting the intermediate section just described are, of course, not needed.

lVhen the bottom section or sections have arrived in the carrier, on opening the door, they contact abutments such as the member 1G at the top of the carrier, so that the continuation of the lifting pressure is exerted upon the carrier itself. It is at this point that the speciic improvements of the present invention come into play. These devices, in the construction illustrated, are as followsz-Bellcrank levers 35 are pivoted on studs 36 carried by brackets 37 mounted on the top of carrier 6 adjacent the side edges of the same and'adjacent the front, or that edge of the door nearest to the door frame. The bell-cranks have arms 3S, which in the closed position of the door extend ver tically from their pivots, adjacent to the surface of the wall or frame 1l, and arms 39 which, under the same conditions, lie horizontally upon the top of top plate 16 of the carrier. Brackets l0 mounted on the top of bottom door-section 1 adjacent the two side edges carry rollers l1, vertically in line Awith the horizontal arms of the bell-crank levers 35. lVhen the bottom andintermediate door-sections are raised, brackets l0 and rollers 41 pass through openings in plate 1G ol the carrier, rollers 'l1 coming in contact with the under sides o'f arms 39 of the bellcranks. This contact occurs shortly before door-section 1 reaches its highest position in the carrier, and results in oscillating the Since arms 3S of the bell-cranks are in Contact with, or lie closelyadjacent to, wall 1l, or preferably,

vplates secured to the wall. such as plates 10 o n which rollers 9 run, as illustrated, the result of the tilting of the bell-cranks is to force the upper end of carrier G away from (he wall, the upper ends oi' arms 3S of the bell-cranks pressing against plates 10 on the wall, and forcingthe top of the carrier inwardly b v the reaction of arms C38 against the pivots of tbe bell-cranks. During this operation the carrier tilts about rollers 9, the

links 1l. make with the v'ertical becoming greater as the top of the carrier moves farther .from the wall. lVhen sections l. and 2 have moved fully into the carrier, and abulted against plate 1G, as shown in Fig. Il. the contimled lifting movement of the hand chainsl raises the carrier as a whole, rollers il running on plates l0, and the upper end ot the carrier moving inwa rdly in a curve under the control of links ll. The linal position oiI the carrier is horizontal, as illustrated inrFig. i, above the opening, with the lower end of the carrier in` contact with plates 10 or wall 14, and

comprising an upper section anda lower sec` tion mounted to overlap the upper section in opening, suspension links pivotally con'- nected to corresponding intermediate points in the edges of' the top section, and to the v,

door frame, and s o ypositioned as'to give the door top a tendency to swing closed, a pivoted bell-crank lever secured to the top of the upper section, havingk one arm adapted to press against the door frame, and means actuated by they upward movement of the lower section for oscillating said bell-Crank for imparting an initial opening movement to the door top, substantially asset forth.

10. The combination of a door frame, a door comln'ising` an upper section and a lower section mounted to overlap the upper section in opening, suspension links pivotally connected to corresponding intermediate points 1n theedges of thetop section, and

to the door frame, and so positioned as to glve the door top a tendency to swing closed,

from said door frame, suspension means nor-v mally holding the door in position to cover theV opening formed by said frame, means for raising the door, a bell-crank lever pivoted to the door, and means moved by said door-raising means into actuating contact ,with one arm of said bell-crank lever to press the otherl arm of said lever against the door iframe to thereby force the part of the door to which said lever is pivoted, away from the door frame, substantially as set forth. y

This specification signed and witnessed this 29th day of May, 1914. `f

'f MARY B. BRYAN,

. Adm. 0) Aestante of Dam'el B. Bry/am.

Witnesses:

. S. A. WALLACE,

. A. B. JOLLY.

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