US895146A - Safety device for elevators. - Google Patents

Description

No. 895,146.- j f PMLNTEDV AUG. 4, 19oa. J. W. BEACH.

SAFETY DEVGE P011 ELBVTcm.`

APPLICATION PILED APE. 5. 1991.

L 1: A al JAMES W. BEACH, Ol" CHICAGO, ILLINOIS SAFETY DEVICE FOR ELEVATORSL,"

Specification of Letters Patent.

mosaic-u w. nizacii. or moin,

Patented Aug. 4. 196e.IH

Appiicatitm sied April 5. 1907. semi-Neasesae." 1

To all ich om it may concern.:

Be it known that I, Janes W. BEACH, a

building and thc top of tho elevator cage,

citizen of the United States, residing at (.hicago, in the county of Cook and State of Ilii- 1 5 nois, have invented certain new and useful I Improvements in Safety Devices for Elevai tors, of which the `following is e. specification. My invention relates to improvements in safety devices for elevators, and the object.

of my improvements is to provide means which will prevent passengers and other persons from being killed or injured by the top of the eleva-tor cave and the iloor of the buihli line Fig.

ing in which said cage is located. 15

In the drawing:-Figure l is a top plan view of an elevator cage equipped with my safety device. elevator cage equipped with a safety device of modified construction. Fig. 3 is a crosssectional view taken on the line 3-3 of Fig. '2.

Fig. 2 is a top plan view of an Fig. 4 is a cross-sectional view taken on the j Fig. 5 is a detail perspccl tive of an elevator cage made in accordance -with my invention without a lintel over the entrance doorway and indicating the relation vof the top opening to said doorway.

Referring to the drawing in detail:--"he reference numeral 8 indicates the top of the elevator cage, having secured thereto a cross.- beam 9, and having iu one side of said top an ciently hea-vier than the weighted cnd as to opening 10, preferably of rectangular form, w

iich said opening should be located directly above the entrance doorway S of the ele vator cage and should be about the same width as seid doorway (or wider) and extcnding from said doorway n ell inwardly toward f said beam 9, the top opening 10 being a practical continuation of the doorway S.

other words, said entrance doorway of said 4o elevator cage has no permanent lixed lintel or other dangerous obstruction over saidf causes theI same to quickly assume and retain entrance doorway.

Arranged to normally guard or close the weight. is indicated by 13.

Normally, this trap-door when closed engages :i stop 14,? constitutingr practically a part of the top S, and assumes a horizontal position, as shown in Fig. 4.. suddenly while a passenger or other person is in the said entrance doorway, the :assenbeing ger or person aforesaid, instead o caught and crushed between the Hoor of the Should the elevator cage descend i will engage the. trap-door, which said trapdoor will instantly assumo a vertical position, as shown by the dotted line. 11 in Fig. 4.

In the inodihed construction shown in Figs. 2 and 3 the trap-door consists of a 1min-t` countcrweight. rl`hcse sections l5 normally assume a horizontal position, as shown in Fig. I5, but will also assume upon pressure being :ippliedto the outer loweibside thereof) a vertical position, as shown by thc dotted From the foregoii'igr and with reference to thc drawings it will he aoparent that the pivot 12 is located parallel to and adjacent to the imier edge of the top opening 10 and just below thc plane of theclcvator cage top S. The inner end. therefore, of the door mechanism is held in normal position below the lower surface of said top S and the. outer or free end of said mechanism is prevented from moving below the normal position by contact of said inner cud engaging withthe under side of the top S.

It is furthcrinorc to he noted thatA in its preferred embodiment my door mechanism is so mounted with res icct to the axis 12 that normallv the free end thereof is just. snllian owen position until being reset to the norinai norizontal position bythe operator of the cage.

Having thus described my invention, what I claim asnew, and desire to secure by Letters-Patent is 1. In safety apparatus for elevators, the combination of a cage having a vertical doorway and a top having a horizontal opening in direct unobstructed communication with said doorway, e. horizontal axis located l elow and parallel to the inner edge of the said top 5 the mechanism 1n one anism pivoted intermediate its inner and ward movement of the outer end of the door outer ends en said axis, said inner end being mechanism.

ada ted to engage beneath the lower surface of 't e cage top to limit (pivotal movement of irection.

'2. In safety apparatus for elevators, the combination of a cage having a vertical doorway and a top havinfr si horizontal opening in direct unobstructe communication with 10 said doorway, a horizontal axis located below and parallel to the inner edge of the said top opening, and norniallyhorizontal door mechanism pivoted intermediate its inner and outer ends on said axis, the mass of the door mech- 1 5ranisn1 being so disposed with relation to the said exis that the center of gravit thereof is normally above and outward of 1.1 e axis but movable inwardly over the axis upon up- 3. In safety apparatus for elevators, the combination of a cage having avertical doorway and a top having a horizontal openin in direLt unobstructed communication wit said doorway, and horizontal door mecham ism for nornmllv guarding said top o ening, said guard mechanism beingr pivote inter'-` mediate of its ends below the plane of the cage top and com )rising n plurality of independently movab e sections. 30

In testimony whereof I ahx my signature -in presence of two witnesses.

J AMES XV. BEACH. Vitneesz i o. K. Timo, W. o. Rom.

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