US1428555A - Mechanism for operating sliding doors - Google Patents

Description

L1. G.v PHILLIPS. MECHANISM FOR OPERATING SLIDING DOORS.

APPLlcArmN man sEPI.2|.-1921.

l i1,428,555. Patenasqpt. 12,1922'.

f scribed.

Patented Sept. l2, i922.

stares rares-r yori-fieles.

ELIS l. Gr. PHILLIPS, OF AURGRA, liLNOIS, ASSIGNOR T0 RICHARDS-WILCOX MANU- FACTURING COMPANY, Q33" AURORA, ILLINGL'S, A CREORATION 0F ILLINOIS,

IVIECHANISM FOR OPEEATNG- SLIDING DOORS.

Appiication ined september 2i, i921. serial Nd. 502,124.

To @ZZ 107mm??? moli/ concern :z l

Be it known that l, ELLIS J. G. Pirinmrs, a citizen of the United States, and a resident of Aurora, in the county of Kane and State of lllinois, have invented certain new` and useful Improvements in Mechanism for @perating Sliding Doors, oit which the following is a specification, reference being had to the accompanying drawing.

This invention relates to improvedv means for operating sliding doors and particularly doors employed for guarding the openings that admit passengers and goods to and from elevators at the various floors of a building. My invention is especially designed for use in connection with mechanism et the type shown and described in Letters Patent No. 1,203,413, dated @ctober 31, 1916, granted upon the application oi one `if-llbert J. Rosentreter, and it has for its object to provide improved means for permitting ready disconnection from or connection to a sliding door of the system oi levers that are employed in connection with such door. I accomplish this object by the novel construction and arrangement of parts shown in the drawing and hereinafter particularly de- Th'at which l believe to be` new will be set Alorth in the claims.

ln the drawings,--

F ig. 1 isa front elevation showing a door closing mechanism operatively connected to; a sliding door, such mechanism embodying my improvements;

Fig. 2 is a similar view on an' enlarged. scale, portions of the operating imeelianisi'n being broken away;

Fig. 3 is a section taken on the line 3 3 of Fig. 2; and

Fig. 4 is a detail, being a perspective view of the bolt that detachably secures thelever mechanism in operative relation with the door.

Referring to the several figures of the drawing, 5 indicates a sliding door and 6 indicates a fixed panel oi non-sliding door, which member 6 as explained in, said Patent No. 1,203,418, will ordinarily be hingedl in.v

place so that, when desired, it mayfbezturned out et the way in order to provide af full f width opening to the elevator as is necessary when furniture or large pieces'oit freighter-e to be placed in or removed from the elevator. Suchopening o'iithe doorway for such purposes necessitates also the swinging to one side of the sliding door, and the means by which the sliding door is hung are constructed lto permit such swinging, but as such ,means are well known in the art, l have not As explained in said f ving-door or a plurality of such doors be employed, l have illustrated it in connection with a single sliding door.

t This sliding door, 5, in its opening and closing movements slides close to one tace of the non-sliding member 6, as is well understood.

Referring to the operating mechanism, 'i' and 8 indicates respectively two levers pivoteid together at their inner end portions by a pivot 9, and together forming a togglelever. The outer end of the lever 7 is pivoted at 10 to a bracket l1 aiiixed to a suitable support such as a4 portion of the doorway frame. As explained insaid Letters Patent, the lever 7 is ybest formed of two spacedapart members between end portions of which the single lever 8 projects. The inner end of the lever 8 has secured to it a disc 12 to which one end of a flexible connection 13 is secured, the other end of which con-.

nection is made fast to a follower (not shown) that is located in a cylinder 14. that carries ,a coiled spring that is compressed f when the toggle is broken in the act of openin the lever 8 when the toggle is in the posi- 'ft'io'n shown in Fig. 1. The parts so` far briefly referred to are well known, and are fully Aillustratedand described iu said Patent No. 1,203,418, and hence a. more detailed description of them is not deemed necessary. t

1 In saidfiormer construction the lever 8 was', at its outer end, pivotally connected with a plate onthe sliding dooi','but in my improved constiuctionl interpose between theflever 8A and the pivot on the sliding door a'ceinpaiatively short arm, which arm has pivotal connection rwith thefsliding door.

immaterial, so iar as The arm reiferred to is indicated by 17 and at one end is secured upon a pivot 1S that projects from the outer face ot a plate 19 that is made fast to the slidingdoor, preferably by being screwed to the inner stile thereof. The free end of the arm 17 is provided with a socket 20 of such size and shape as to receive and hold therein an end portion of the lever 8, such socket being preferably ot considerable depth as clearly illustrated by dotted lines in Fig. 2.

To the lever 8 is iixedly secured a stud 21 that projects from the outer tace ot such level', said stud being provided with an enlarged head 22. Surrounding the stud is a short sleeve or hollow bolt 23 and located therein, as clearly shown in Fig. 3, is a coiled spring 24 which at its outer end bears against the enlarged head 22 and at its inner end against an annular inturned flange at the inner end of the sleeve-like bolt 23. At opposite sides of the bolt at its inner end are lugs 25 which are preferably cast with the member 23. The outer wall of the socket 2O in the arm 17 is provided with an openended slot 26 of a size to receive therein the bolt 23, and in the side walls of this slot are recesses 27 into which the lugs 25 are adapted to rest, and when such lugs are in their respective recesses it will be evident that the lever 8 will be held against end-wise movement that would detach it from the arm 17 28 indicates an operating handle pivotally mounted on the pivot 18 which handle at its inner end has rigidly fastened thereto or formed therewith a downwardly-extending arm 29 from the outer face of which extends a projection 30 that is normally in engagen ment with the lower edge of the arm 17. The free end of the lever 28 will preferably have connected therewith a hand-hold 31 of any ordinary shape.

In operation, by pressing down upon the handle 28 sufficient pressure will be brought against the lower side of the arm 17 through the projection 30, to cause a breaking of the toggle at its joint 9, and thereafter the sliding door 5 will be moved back out of closing pesiti'on-the mechanism in both the opening and closing operations of the door acting in the manner fully described in said Letters Patent. Whenever it is desired to so disconnect the operating mechanism from a sliding door as to permit of a full opening of the doorway as before referred to, such disconnection can be instantly made by drawing out the sleeve-like bolt 23 against the Aaction of the coiled spring 24 therein, such drawing out continuing until the lugs are clear of the recesses 27, after which such bolt can be given a slight turn to keep them from being forced by the spring back into the recesses. At 82 is shown another recess, similar to the recesses 27, into which one ol" the lugs can l drop when the bolt has been given a quarter turn. After the withdrawal oit the lugs `from their holding or retaining position in the recesses 27, it is evident that upon the toggle being broken on its joint 9, the lever 8 can be instantly withdrawn from its socket in the arm.

By providing this comparatively short arm 17 between the pivot on the sliding door and the end portion of the adjacent lever, and providing also for a detachable connection between said arm and lever, such as illustrated and described, am able to quiclily connect or disconnect said arm and l ver, and yet when the parts are in operative position said arm and lever will be rigid, one with the other, and, therefore, the action of the toggle lever as a whole will be as perfeet as if the lever S were itself directly connected with the pivot on the door as in the 'former construction.

liVhat I claim as my invention and desire to secure by Letters 1Batent, is-

1. Sliding door operating mechanism comprising in combination, an arm adapted to be pivotally connected at one end with a. door, and a pair oit toggle-levers pivotally connected together at their inner ends, one ot which levers adapted to be pivotally connected at its outer end with a liXed support, the outer end of the other lever being interlocked with and forming a rigid prolongation of said arm.

2. Sliding door operating mechanism comprising in combination, an arm adapted to be pivotally connected at one end with a door, a pair of toggle-levers pivotally connected together, one oit which levers is adapted to be pivotally connected with a fixed support, and means for detachably connecting an end portion oit the other lever with said arm and serving also to hold said last-named lever rigid with said arm.

3. Sliding door operating mechanism comprising in combination, an arm adapted to be pivotally connected at one end with a door, a pair oi' toggle-levers pivotally connected together, one oit which' levers is adapted to be pivotally connected with a liXed support, means for detachably connecting an end portion of the other lever with said arm and serving also to hold said last-named lever rigid with said arm, and a pivoted device adapted when swung in one direction to break the toggle.

l. Sliding door operating mechanism comprising in combination, an arm adapted to be pivotally connected at one end with a door and having a socket in its other end, and a pair of toggledevers pivctally connected together, one of which levers is adapted to be pivotally connected with a fixed support and the other ot which has an end portion detachably held in said socket.

5. Sliding door operating mechanism com` prising in combination, an arm adapted to he pivotally connected at one end with a door and having a socket in its other end, one wall of the socket having` an open-ended slot therein, a pair of toggle-levers pivotally connected together, one of which levers is adapted to be pivotally connected with a iiXed support and the other of which has an end portion inserted in said socket, and a. holt on said last-named end portion, which bolt lits Within said slot.

6. Sliding door operating mechanism comprising in combination, an arm adapted to he pivotally connected at one end With a door and having a socket in its other end, one Wall of the socket having an open-ended slot therein, a pair of toggle-levers pivotallv connected together, one of which levers is adapted to be pivotally connected with a fixed support and the other of which has an end portion inserted in said socket, and a bolt on said last-named end portion, Which bolt lits Within said slot, said bolt having an ipterlocking engagement with a Wall of the s ot.

7. Sliding door operating mechanism comprising in combination, an arm adapted to be pivotally connected at one end with a door and having a socket in its other end, one Wall of Which socket has an open-ended slot therein, a pair oftoggleelevers pivotally connected together, one of Which levers is adapted to be pivotally connected with a iixed support and the other of which has an end portion lying Within said socket, a lon.-

gitudinally-niovable bolt on said last-named end portion, said bolt lying within said slot and having a lug thereon for entering a recess in said slotted Wall to lock said lastnamed toggle-lever against Withdrawal from the socket, and a spring tending` to normally hold said bolt in locking position.

8. Sliding door operating mechanism comprising in combination, an arm adapted to be pivotally connected at one end With a door and having a socket in its other end, one wall of which socket has an open-ended slot therein, a pair of toggle-levers pivotally connected together, one of which levers is adapted to loe pivotally 'connected with a Xed support and the other of which has an end portion lying within said socket, a stud secured to said last-named end portion, a hollow holt surrounding said stud and movable thereon and litting Within said slot, said holt having` a lug thereon for engagement with a recessin said slotted Wall to effect a locking of said last-named togglelever to said socketed arm, and a coiled spring interposed between said stud and bolt for normally holding' the bolt in its said locking position.

ELLIS J. G. PHILLIPS.

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