US527180A - mills - Google Patents

Description

(No Model.) 2. Sheets-Sheet 1.

I. MILLS & J. YOUNGSON. immuno PIRE ESCAPE.

YH: nofws PrEns c., mooumo., WASHINGTON n c (No Model.) 2 Sheets-sheet 2.

I. MILLS & J. YOUNGSON. l

' AUTOMATIC FIRE ESCAPE.-

No. 527,180. Patented Oct. 9, 1894.

55.113 EEN. @y

M Normls wErERsco.. Puorammo.. wAsHm VIO UNTED 'STATES l PATENT OFM-CE- isAAo MILLS AND JoHN YoUNesoN,v oF HAMILTON, CANADA.

AUTOMATIC FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent N0. 527,180, dated. lClctolorel" 9, 1894. Application filed January 5,1894. Serial No. 495,841. (No: model.)

To all whom it may concern:

Beit known that we, ISAAC MILLS and JOHN YOUNGSON, citizens of Canada, residing ,at Hamilton, iny thel county of VVent.wr rth in the Province of Ontario, in the Dominionfof .windows of a building, in close proximity thereto, are parallel with and securely fixed rigidly to the wall, and also secured to the ground. These tubes are provided .with a sliding escape receptacle, or cage, so arranged and devised, that the said receptacle shall bev capable of sliding down at the same speedl when containing one,'or more, say twelve people; and also, of being stopped at any Window by means of brakes. Thereceptacle orcage is so arranged as to ascend automatically.

,The objects of our invention are, to pro-v vide a fire escape that is safe and substantial, to avoid accidents, and to aord facilities for, the proper adjustment of the mechanism pertaining thereto.

We attain these objects by the mechanism illustrated in the accompanying drawings, in Which- Figure I, is a front elevation of our improved tire escape, the front part ot' the slid ing receptacle removed to show the interior, and the lower parts of the vertical guide tubes broken in order to show the balance weights. Fig. II, is a side elevation ofthe same, the stationary circular casing containing the friction governors being in section; Fig. III, is an enlarged front elevation of the rotary arms, keyed onto shaft in casing showing holes inends of said arms to which the governors are pivoted. Fig. IV, is a side elevation of the-same with casing in section. Fig. V, isa side view of a friction governor. Fig. VI, is a front elevation of the sliding receptacle with guide rollers, lever brake, inner stay guides, and double eccentric with their rods in position. Fig. VII, is a broken end elevation of the receptacle showing the rear side lower than the front side of same, and Fig. VIII, is a plan of the receptacle showing eccentric rods with clips in position against the vertical tubesthese several 'figures'be- 'l ginning'v with FigiA 3 `being enlarged. f

' Similar letters and figures refer to similar 55 parts throughout the several views. In the drawings the parallel vertical tubes are indicated/bythe letter A, and are securely xed tothe wall of a building andin close proximity thereto. tubes may be inserted' in the ground if Arequired,and the upperends provided with a substantial collar B, which itssecurely on said tubes, the ltwo collars being connected by meansof cross straps C. The front and 6'5 lrear of'v these collars have vertical standards V E, for the support of shafts F, with thecable lpulley H, oneach immediately over the cen,-

terofeach tube. The independent cable I, i which passes over each ot these pulleys, is 7o attached to a brake J, pivoted -to each end of the-receptacle K, at 4, the other end of this cable being attached to the elongated weight L, in the interior of the tubes, as-a balance' tothe receptacle. A kcircular rigid casing M, forms a part of each of saidl rear standards, and inthe interior of each said casing are two rotary arms N, secured to the shafts F. To the ends of these rotary arms, the friction governors0,iare pivoted at O', and revolve with 8o said shafts, when the receptacle ascends and descends. When the receptacle is laden and liable to descendfast the said friction governors engage at 2, with the interior concave face of the said casings, thus causing great friction, and allowing the receptacle tol descend slowly. l

The brakes J, hereinbet'ore mentioned, when applied, engagev with the inner `part of v front upper rollers S, which engage with the 9o tubes, thus stopping the receptacle in case of accidental breakage of a cable. These rollers are pivoted at 3, which forms projecting arms at each endot receptacle as journals for said rollers on each side of said tubes. In place of these rollers, concave slides may be applied as equivalents, the attainment of these results being similar. i

'Ihe guides R, securedto the under side of receptacle, the ends of which are concaved roo.

to slightly touch the tubes prevent the said tubes from possibly bulging inward, and binding the receptacle.

The Vertical hand lever T, which is in po The lower ends of these 6o sition in the interior of receptacle operates a double eccentric or cam, U, provided with V against the tubes in order to stop the receptacle. The right hand end or rod V, is partially supported by the hangers P, attached to the under part of receptacle.

X is a spring attached to the under part of receptacle forming a cushion for the same when engaging with the ground.

The independent cable, 5, the upper end of which is attached to lever 6, of arm 8, When drawn down brings said arm, which is pivoted to upper part of standard E, at 7 down upon the inner part of cable pulley H, and cable I, thus causing friction and stopping the same. ground or from the receptaclein order to stop said receptacle when ascending or descending. The balance weights in tubes, liereinbefore mentioned are sufficient to allow the receptacle to ascend. A

Having delineated and specified the chief and important elements in our invention, what we claim, and desire to secure by Letters Patent, is-

1. The combination of the vertical tubes A, provided at their upper ends with rigid collars, B, having vertical standard bearings E, and cross braces C, the shafts F, cable pul- This cable 5, is operated from the leys H, cables I, with weights L, circular casings M, the cross arms N, secured to said shafts with friction governors O, pivoted at O', thereto, and the receptacle K, provided with guide rollers S, substantially as and for the purpose hereinbefore set forth.

2.` The combination of the vertical tubes A, having upper collars B, with standards E, and casings M, the cross braces C', the through shafts F, with cable pulleys II, and cables I,

the cross arms N secured to said shafts and the friction governors O, pivoted thereto, the receptacle K having guide rollers S, and inner guides R, the vertical lever T, applied to eccentrics U, rods V, and outer clips W and the independent cable 5, attached to lever of friction arm v6, substantially as and for the purpose hereinbefore set forth.

3. In an automatic lire escape, the sliding receptacle K, having guide rollers S,`guides R, vertical tubes A, the brake lever T, supplied with the eccentrics U, rods V, and outer clips NV, the ground cushion springuX, in combination with the described rotary lrnechanism in casings M located on top of said tubes, substantially as and for the purpose hereinbefore set forth.

ISAAC MILLS.

JOHN YOUNGSON.

Vitnesses: Y THos. JONES,

JOHN H. I-IENDRY.

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