US541292A - Elevator-door - Google Patents

Description

2 Sheets-Sheet 1.

BLEVA'IOR DOOR.

T. P. SANFORD.

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(No Model.)

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2 Sheets-Sheet 2'.

(No Model.)

T. I'. SANFORD.

ELEVATOR DOOR.

No. 541,292. Patented June 18, 1895.

Y UNTTED STATES PATENT Orrick.

THOMAS F. SANFORD, OF BUFFALO, NEW YORK.

ELEVATO R-DOO R.

SPECIFICATION forming' part of Letters Patent Nah-11,292, dated June 18, '1895.

Application led December 19, 1894- Seigial No. 532,341. (No model.)

.To @ZZ whom i may concern:

Be it known that I, THOMAS F. SANFORD, a citizen of the United States, residing at Buffalo, in the county-of Erie and State of New York, have invented certain new and useful Improvements in Elevator-Doors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the'art to which it appert'ains to make and use the same.

This invention relates to passenger and freight elevators and consists in improvements, as hereinafter set forth, in the doors find in operating and securing devices there- 1n the accompanying drawings, Figure l represents a perspective view of an elevatorcage having sliding and hinged doors and their operating devices .constructed according to my invention, this figure showing, also, the hinged door as opened and the sliding door and its hanger and the track as closed. Fig. 2 represents in front elevation the cage with the respective doors closed. Fig. 3 represents a perspective view of the cage with both doors opened. Figs. 4 and 5 represent detail v'iews`f portion's of the device.

The object of my invention is to provide the cages or framework inclosing the elevating mechanism of passenger and freight elevators with independent hinged and sliding doors and with mechanism for supporting, sliding, and for swinging the sliding door outwardly and with devices for securing said doors in their respective positions whereby, with the advantages of simplicity of construction, -ready and easy manipulation and security in use, provision is made for securing ingress and egress openings of varying width in the cage as desired.

1 represents the reticulated cage 0r framework within which are contained the platform or carriage and the elevator-operating mechanism.

2 is a vertical panel at the left-hand edge of the front portion.

3 is a keeper to receive the hook-bolt of the lock, 4, of the independent sliding door, 5, when said door isy closed and thereby hold said sliding door securely locked.

6 represents a stationary horizontal track located above said panel, 2, and extending at its inner'end, as shown at 7, a short distance over the space normally closed by the hinged door, 8, to serve as a stop for said door, 8, said extension, 7, also carrying a keeper, 9, to receive the spring or other bolt, 10, of the lock, 11, carried by the inner end of the hinged or swinging track,'12, rto be presently described, and thereby lock the hinged track when closed.

13 represents a chain, or its equivalent, connected with the bolt, 10. By pulling on this chain, said bolt is released when itis desired to open out the swinging track.

To the top of the sliding door, 5, are bolted or otherwise attached, hangers, 14, in which are journaled wheels, 15, having slide bearing on the upper edge ofthe stationary track, 6. These hangers,it will be observed, extend rearwardly, or inwardly, of the sliding door, '5, so that in the reciprocal movements of said door onto the hinged or swinging track, 12, to open position, and onto the' stationary track, 6, to closed position, they travel along the rear faces of the stationary and swinging tracks, respectively, and do not interfere with the locking device for securing the swinging track in closed position. hinged, as at 16, to the framing so as to be swung entirely open, and at its front edge isV provided with a suitable' locking' device, or devices, as 17 to secure it in closed position.

18 represents a'vertical rod or shaft journaled at its upper and lower ends, respectively, in the top and bottom of the framing adjacent to the rear of the hinged door so as to horizontally oscillate, and 19 represents -a. pair of spring grips or clasps attached to said rock shaftto receive and grip the edge, 20, of the sliding door, 5, when it is slid over the space normally occupied by the hinged door, 8, when closed. When so slid over and on@ The door, 8, is

the hinged track, 12, said door, 5, is opened\\ outward and swings upon its pivotal supports, viz., the hinged track, 12, and the rocking shaft, 18, and is then locked in open position, as shown in Fig. 3, by the hooked catch, 21, secured to the cage framing. p'

The hinged track,12, is of right-angle form, and is bolted orhotherwise secured at its rear end to the rocking shaft-,18, so as to be turned or opened out with the hinged door, 5, independently of the sliding door or gate, 5, when ICO it is desired to have only the hinged, door open, as indicated in full lines in Fig. 1, or to be opened out in conjunction with said door, 5, when said sliding door is slid and hung upon said track, 12, as shown in Fig. 3. The inode of operation of my improved doors 5 and 8 will be readily apparent.

When, as shown in Fig. 1, it is desired to use only the hinged door, 8, the sliding door, 5, is, by its hangers, 14, supported upon the stationary track, 6, secured to the cage frame- Work and is locked in said position by the lock, 4. The hinged track, 12, may, in this instance, either remain closed or, to obviate its operating as an obstruction to the passage of persons or articles, it may be swung out on the rocking shaft, 18. When, however, as shown in Fig. 3, it is desired to open bothdoors 5 and 8, so as to openk substantiallythe entire front of the elevator, the hinged door, 8, is tirst swung out or opened, the lock, 4, is then released, and the sliding door, 5, is then slid along, through the medium ot` its wheeled hangers, 14, to suspension on the hinged-track 12, and into gripping engagement with the grips, 19. The lockingengagement between the two tracks is then released'and said door,

5, and track, 12, turned outward upon the shaft, 18, and lockedvin open position bythe hooked catch, 21. The reversalot. the'abovestated movements, which are Very readily and' expeditiously accomplished asfwilllbe apparent, returns the respective doors to their posi.- tions of closure.

W'hat I claim is- 1. In a closure for elevators,.an elevated stationary track, a door loosely hung upon said track with capabilityof sliding'therealong, a `hinged door, anda track elevatedabovethe sliding door and hinged independently ofsaid hinged door and adapted to receive the slid'- ing door, substantially as and for the purpose inpresence off two witnesses.A

2. In an elevator, a closure composedoi` a hinged door, a stationary track immovably. secured to one side Wall of the cage at a point set forth.

above the sliding door, a door, Wheeled hangers secured to and extending abovethe top of said door, a su pplemental elevatedtrack hinged at a point., adjacent to the other side' Wall of the cage and adapted to be swung ontwardly parallel with lsaid side Wall and also inwardly in line with the immovable track,

and a door hinged to said cage independ-` extending above the top ofsaid doorvwhereby saiddoor is' hung upon said track with capability of sliding therealong, a vertical rotatable rod havingbea'rin'g'inthetop andlbot# tom portions, respectively, of said-cage `srt-Italie endopposite to the stationary tra'clgatradi!"` connectedwith said? rod sosasto' turn there" with and adapted to receive saidlfdoorpandfw door hingedtothe cage-independently of the,` hinged track, substantially as'and fnthetpuu pose'set forth;

4l In an elevator, a cage, an elevated sta-- tionary track rigidly se'c uredat .its o'u-terendi vto one .side ofusaid cafge,.avertical-ro'diolsiiaft ,having pivotal bearing in the topi and"Y bot ftom,.respectively, offsaid cage ram'ingmnele'- vated track.connectedWithtsaidpi-votal ro'dorr shaft, a locking device connecting the respect five tracks, a.doorindependently'hung upon jsaid stationary t-rack withea'pabilit'y of: slid-H ing therealong and onto the track connected. `with the pivotal. rod or' shaft; springfjawedi grips con nectedwithf said' rocking 'shaftorrod and adapted torreceive and' grip theledgeof fsaid sliding door, a doorhinged tothe-cage framingjndependently of the' hinged Irod, andi ,securing devices for' securing? said doors;l iii'l their respective openl and' closed positions;r substantially as andt'or the purpose sretforth;`

In testimony whereofl. affix my:signatune THOMAS n. sauront);y V

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