US1602997A - Sliding door - Google Patents

Description

@et 12 1926. f 1602,997

J. H. BECKWITH SLIDING DOOR Filed July 16, 1925 2 Sheets-Sheet l 2 Sheets-Sheet g I Mlll. IIIMA Uil J. H. BEcK'weTH sLDING DOOR Filed July 16, 1925 Patented Oct. l2, 1926.

JOSEPH H. BEGKWITH, OF LOCKESBURG, ARKANSAS.

SLIDING DOOR.

Application filed .Tuly 16, 1925. Serial No. 44,058.

This invention relates to improvements in sliding doors and windows and more particularly to that type in which two vertically slidable sections are connected so as to balance each other and provide for lowering of one section when the other section is elevated, and vice versa.

One of the objects of the present invention is to provide a door or window structure ot the type rei-erred to above so constructed that the sections thereof will be equally balanced in a manner to insure ot' smooth and even sliding adjustment of the sections in opening and closing the door.

Another object or" the invention is to so construct the door that the sliding movement ot the sections thereof will be limited `when they have reached their open or their closed position, thereby preventing any such movement ot the sections beyond open and closed position which would be `liable to cause disarrangement of the connections provided tor the sections.

Another object ot the invention is to provide novel means whereby the connections ot each section may be adjusted so as tov insure perf-ect balancing of the sections with relation to each other and thus insure of even movement of the sections when adjusted.

In the accompanying drawings:

Figure 1 is a view in elevation ot a sliding door constructed in accordance with the present invention, parts being broken away and parts being shown in section to better illustrate the invention, the sections of the door being in closed position.

Figure 2 is a vertical sectional view taken substantially on the line 2-2 of Figure 1, looking in the direction indicated by the arrows.

Figure 3 is a detail horizontal sectional view takensubstantially on the line 3 3 of Figure 1, looking in the direction indicated by the arrows.

Figure 4 is a vertical sectional view on the line 4-4 of Figure 3, looking in the direction indicated by the arrows.

The invention may find embodiment in doors for elevators, warehouses, garages, etc., or the principles thereof may be embodied in the construction of windows of varices types. In the embodiment of the invention illustrated inthe drawings, the numeral 1 indicates in general the'jamb of the door trame," and the numeral 2 indicates in general the lintel ot' the trame, the sill ot the frame beingindicated by the numeral 3. The jamb 1 preferably comprises a hollow structure including spaced walls 4 between the edges ot which, which are presented at the door opening, there is arranged a con necting or partition wall 5` which, together with said edge portions oi' the wall 4, constitutes a guide 6 for the upper section 01"? the door, which section is indicated ingen eral by the numeral 7. A similar partition wall 8 is arranged between the walls 4 and the lower portion of the jamb and each of the walls 8 occupies a plane spaced inwardly a short distance Jfrom the plane occupied by the respective wall 5, the said walls 8 and the walls 4 constituting a guide 9 for the lower section of the door, which section is indicated in general by the numeral 10. The floor of the building of which the door constitutes al part, is indicated by the numeral 11, and the floor is provided at the sill 3, with a slot12 to permit of downward sliding movement of the lower section 10 of the door. It found desirable or expedient, a housing 13 may be provided beneath the iloor 11 to accommodate the lower section of the door when said section is in its lowered or open position, but, in any event, the walls 8 will preferably be extended below the fioor line so as to properly guide the lower section of the door when the same is lowered. The lintel 2 comprises a lintel proper which is indicated by the numeral 14 and which denes the upper side of the door way, and preferably, the walls 5 are eXtended above the said lintel proper to a sutlicient height to suitably guide the upper section ot the door when the same is slid upwardly to open position.

The door sections 7 and 10 may be of any construction found suitable, depending upon the size of the door.. as a whole, and the char acter of the `buildin-g or other structure in which it is to be installed. In the illustrated embodiment of the invention, the upper section 7 of the door comprises end Stiles 1,5, a top rail 1.6, abottom rail 17, and.

a panel 1S arranged within the Ytrame constituted by the stiles and rails. ln a like manner, the lower section comprises end stiles 19, top and bottom rails 2O and 21, and a panel 22. ytherefore, the stiles of the upper section work slidably in the guides G of the jamb 1, and the stiles 19 ot the door section 10 work slidably in the guides 9 ot the said jamb. It will be observed by reference to Figure 2 ot the drawings, that the guides 6 and 9 are located in the same vertical plane so that the door sections 7 and 10 likewise occupy a common plane. In order that the doors may be connected for sliding movement in unison and may balance each other, a cable or other flexible element 23 isseeured at one Vend, as at 24, to the outer edge of each stile 15 or' the upper section 7 oit the door and is led upwardly along` the inner side ot the respective wall 5 of the lintel 14 and over a pulley mounted in the wall 5 near the upper end of the upwardly extended portion thereof. The cable 23 is led downwardly Jfrom the pulley 25 and connected to the respective stile 19 ot the lower door section 10 through the medium of an adjustable connection 26 which is best illustrated in Figures 3 and 4 of the drawings.

The stiles 19 of the lower door section 10 are formed with grooves 27 in their outer edges to accommodate the stretches ot the respective cable 23, and the outer edge oit each stile is further formed with a recess to accommodate the connecting device 26, as clearly shown in Figures 3 and 4 of the drawings. rlfhe said device comprises a sheet metal housing 29 secured in place within the upper portion ot the recess 28 through the medium, of screws or other suitable fastening elements 30. The upper end of the housing or easing` 29 abuts against the upper end of the recess 28, and the casing is open at its side which is presented toward the wall 8 of the respective jamb. The casing at its lower end is closed by a bottom piece 31, and the said bottom piece is formed with an opening 32 through which is litted a threaded shank 33 at. the lower end of an anchoring member 34 preferably of the cross sectional contour shown in Figure 3 of' the drawings, The anchoring member 34 is formed with an opening 35 located near its upper end and with an opening located at its intermediate portion, and the lower end of the respective cable 23 is fitted through the opening 35 from one side of the member, thence led downwardly through al groove 37 formed in the other side or the member, land thence threaded through the opening 36, a ring 3S being secured about the member below the opening 36 and anchoring the. lower' end of the cable. il nut 39 is threaded onto the threaded shank 33 ofthe anchoring member 34. and bears against a washer 40 which, in turn, engages the under side of the bottom piece 31 of the casing 29. At this point it will be evident that by applying a wrench to the nut 39, the respective cable 23 may be slackened or taken up so that should it be found that the door sections are not evenly hung, this may be compensated for by adjusting one o-r the other of the connecting devices.

From the foregoing description, it will be understood that by raising the upper door section 7 or lowering the lower section 10, the sections being in the closed position shown in Figures 1 and 2 of the drawings, the other section will be moved in the opposite direction until the lower edge ot the upper section is, in the full open position of the sections, substantially flush with the lintel proper 14, and the upper edge of the lower section is substantially tlush with the sill 3. Movement of the door sections to closed position may be ellected by lowering the upper section or raising the lower section.

is a convenient means for adjusting the door sections, a cable or other tiezrible element 41 is preferably connected at its ends, as at 42, to the upper rail 15 of the upper section 7 and passed over pulleys 48 at the top of the lintel olf' the door iframe, and thence downwardly with its intermediate portion 'passing through an eye upon the lower rail 17 ot the said upper door section. By pulling down upon the stretches of the flexible element 41, which stretches extend between the eyes 43 and 44, the upper section of the door will be slid upwardly and the lower section will, by gravity, assume a lowered position.

Bv reference to Figure 1 of the drawings, it will be observed that when the door sections are in closed position, the upper cor ners of the lower section will abut agains the lower ends of the respective walls 6 o` the jamb, and likewise, the upper edge olI the said lower section will abut against the lower edge of the upper section.

Having thus described the invention, what l claim is:

1. ln combination with a frame including' jambs, each of the jambs comprising transversely spaced walls and upper and lower partitions connecting the spaced walls, the lower partition being inset from the upper partition and upper and lower closure sections slidable in the jambs, the lower seetion extending between the lower partitions and limited in its upward movement by contact with the lower ends of the upper partitions.

2. ln combination with a trame including jambs, each of the jambs comprising transversely spaced walls and upper and lower partitions connectingthe spaced walls. the lower partition being inset from the llU upper partition, upper and lower closure sections slidable in the jambs, the lower section extending between the lower partitions and limited in its upward movement by contact with the lower ends of the upper partitions, guide pulleys at the top of the upper partitions, flexible elements passing vover said pulleys and connected at one end to the upper closure section, an anchoring member connected to the other end of each of the 10 flexible elements and formed with a thread ed shank, a housing let into each of the Stiles of the lower closure section and having its bottoni apertured to receive the threaded shank and a nut on each kof the threaded l5 Shanks to adjust the flexible elements.

In testimony whereof I aliix my signature. JOSEPH H. BECKWITH.- [1.. s]

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