US494142A

US494142A - Sliding door

Info

Publication number: US494142A
Authority: US
Publication date: 1893-03-28
Anticipated expiration: 1910-03-28

Description

.L t e e h S m e e h s 2 T M um m Mn Be EM HS L m d 0 m 0 m No. 494,142. Patented Mar; 28,4 93.

I WITNESSES 'NCfWwwm/ v -IA/ VENTOH l 4 ATTUH/VFY uunms PETERS 00., mo'ram'na. wasumc'ron a c (No Model L. HENDERSHOTT.

SLIDING DOOR.

2 Sheets-Sheet" 2.

No. 494,142. Patented Mar. 28,1893.

ATTORNEY.

1' NORRIS PETERS coy. PHm'auTuQ. WASHINGTON n. c.

I UNITED STATES PATENT OFFIcE.

LOWELL IIENDERSHOTT, OF KANSAS CITY, MISSOURI.

SLIDING oooR.

SPECIFICATION forming part of Letters Patent No. 494,142, dated March 28, 1893. Application filed July 21, 1890. Serial No. 359,466. (No model.)

T0 at whom it may concern.-

Be it known that I, LOWELL HENDERSHOTT, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Sliding Doors, of which the following is a specification, reference being had therein to the accompanying drawings.

The object of my invention is to provide a door, with a guide frame adjustable as to width and having a series of transverse plates extending from one guiderail toward similar plates extending from the opposite rail and means for locking together the free ends of opposite plates.

In the accompanying drawings, wherein I have illustrated my invention, similar numerals and letters of reference indicate similar parts.

Figure 1 represents a side elevation of one form of my invention. This view shows the sliding door as being partially raised. Fig. 2 represents a sectional view of the track or guide frames taken at rog in Fig. 1, and also illustrates the means by which the track is held in place, where it would otherwise be unsupported. Fig. 3 represents in elevation,

a roller such as may be used to reduce fric-' tion in the working parts. Fig. 4 represents, in section, the counter balancing weights and supporting bracket. Fig.5 represents a rear elevation of one form of my invention, partially in section, and having a portion broken away.

1-1 are the guides in which the door 2 slides. Projections 3 on the corners of the door serve to keep the door in the guides 1-1. The roller shown in Fig. 3 may be used to reduce the friction between the projections 3 on the door and the track 11.

Attached to the lower end of the door at a is a rope, 4, which passes over a pulley 5 fastened to the ceiling. At the other end of the rope, 4, is a counter balance weight, 6, equal in weight to about one half the weight of the door, 2. A supplementary weight 7 has an opening, centrally located, through which rope 4 is adapted to pass, but not large enough to allow the passage of the other counterbalancing weight. The bracket 8 has an opening 9 large enough to permit Weight 6 to pass, but

too small to permit the passage of the weight 7. Instead of the track ll being, on each side composed of two rails as shown in the drawings, it may be made of U iron, in which case the plates 10 will not be used. The plates 1O serve to fasten the track to the wall and ceiling, and to preserve the proper distance between the rails of the track.

In Fig. 2 1111 are transverse plates, having a sliding connection with each other, and adapted to be clamped together by means of the

clamps

12 and 13 and set

screws

14 and 15. One end of each plate 11 is rigidly secured to the rails 1-1, through the intermediancy of the plates 10. This construction allows the securing of the track in position for any desired width of door, and also serves to retain the rigidity of the track or guide at a point where it is not fastened to the wall or ceiling.

The operation of my invention is as follows: When the door is raised the

Weights

6 and 7 lower, the weight 6 passing through the opening 9 in the support 8. After the door has been raised so that a portion of the weight of the door 2 rests upon the horizontal rails 1-1, the larger weight 7 comes to rest upon the support 8, and thus preserves the balance between the door and the oounterbalances. Conversely, when the door is lowered, the Weight 6 raises, and passing through the opening in the support 8 comes in contact with the weight 7 and raises it, preventing a too rapid descent of the door.

I have shown a modification of my invention in Fig. 5. In this construction the door 2 is divided, and is preferably provided with guides or projections at the point of division. In this instance the guides are placed on the upper end of the lower half of the door, and a hinge connection is made between the two parts of the door. It is obvious that if desired, this hinge connection may be dispensed with, in which case the upper and lower parts of the door must be separately guided within the guide rails l-1.

The object of usinga divided door, as shown in Fig. 5, is to prevent the occupying so much space in the room, as would be used with a single or undivided door, the divided door following more closely the direction of the guides 1-1.

Having thus described my invention, what I claim, and desire to secure by Letters Patfor locking together thefree ends of opposite ent, is plates substantially as described. 10 The combination with a sliding door, of a In testimony whereof Iaffix my signature in guide frame provided with an adjustable presence of two witnesses.

5 clamping mechanism consisting of a series of LOWELL HENDERSHOTT.

transverse plates secured at one end to a guide Witnesses: rail and extending toward similar plates se- J. W; NORTHGUTT,

cured to the opposite guide rail and means, LESLIE E. BAIRD.