US1838705A - Fire escape - Google Patents

Description

Dec. 29, 1931. w, ROBERTSON 1,838,705 FIRE ESCAPE Filed Oct. 16, 1929 4 Sheets-Sheet 1 A? A5 I A5- In uenior Hi I Z 11am E Eobrfson A iiorney Dec. 29, 1931. w. E. i R'OBERTSON 1,338,705

FIRE ESCAPE Filed Oct. 16, 1929 4 Sheets-Sheet 2 Wyfi".

In venior W111 liam E. K01261 560 A ttor ney Dec. 29, 1931. w, ROBERTSON 1,838,705

FIRE ESCAPE Filed Oct. 1929 4 Sheets-Sheet 3 Inventor Madam E- fqbe r'fson 5 3- through the especially equipped ladder.

ranged longitudinally thereon.

Patented Dec. 29, 1931 WILLIKMFEPYS 1 0BE T 0 f0 mnmomwvmsmni FIRE ESCAPE This invention appertains tonew and useful improvements in fire escapes and'more I particularly to a novel chute of the collapsible type. 21.1 i The principal object of this invention is to provide a life saving chute which can be quickly mounted for use withoutdifilculty.

Another important object of the invention is to provide a fire escape in the form of a 4 chute attachment for ladders.

During the course of the following specification and claims, other important object-s and advantages of the invention will readily become apparent. In the drawings:

Figure 1 represents a side elevation of an extension ladder mounted on a fire apparatus with the novel attachment arranged thereon.

Figure 2 represents a cross sectional View Figure 3 represents a cross sectionalview of the novel belt structure. I

Figure 4 represents a front elevational view of the extension ladder and the belt ar- F'gure5 represents an end elevation of the ladder with the attachment disposed in place thereon.

Figure 6 represents a fragmentary longi- 3 tudinal sectional View through the ladder and the attachment thereon.

Figure 7 represents a top plan View of a ladder section with the chute attachment arranged thereon.

Figure 8 represents a longitudinal sectional View through the belt. 1 V

Figure 9represents a fragmentary perspec tive view of the belt.

Figure 10 represents a longitudinal sectional View through aslightly modified form of the invention. V V g Figure 11 represents a "fragmentary elevational view of the modification shown in Figure 10.

1 .I 5 Figure 12 represents a side elevational View of the winding means for the belt.

F1gure13 represents a cross sectional View taken substantially on line 1313 of Figure Figure 14 represents a fragmentary side Application filed October 16, 21829. siSeria1-fNma49Gm ou w d y. an. f lzh l mi t ashirlpw sedgs-se-tli tthe hand Qp rs nss din aw i ...the.- ;-eh fi -ui z no team-@1 1: wil b inete at a gith anges .1 i o th ls idabl s tion of the ladder will overlap,so thatthpSetipns pp itm when. t e :l-a d i iilst L n .1 9-

The ladder is P r y showni rammed :Pes tiQn iniiigi re. .gAs-risielsa l -.show in Twl ii' lr i a -We 1as oaavieww ..,the; dra

. 1 .3, wnnesz 'edi butting re atidfiibyimean notai lur lityletfi xib strapslf llfi l tab rivets 15 y "be-emploued e em ri gith said; .plates to .the straps. y The[ straps at one end are secured to onegendpf -the ladderg --.rnreterab,' y.in theman er awn ilizthe a empdifiedifQrmsh u 'in ltigl sli .Ih .401 has e-ip umli ye we 1 Zfisedthsn i -e ldisy b r th 'i 1thread .s ilk .engege i n-lt gsald lnuts; .17 in" a manncnfi sth tth eye' rfli fe 2 .wi 'PI THQ ZbWQ i h outer sur e f-i he rel ,sand.-

shown .n Ii r ali3, he .l' o i. i ace sssda as a 19 (around) e ch; eye sqithat}i iwill net' h ac f0 ey s,.teirretrndebeyomlthes -.Q --,th9 laddenmay.be isn se .inicsn tac use gt ezabslt comp ses. ap uralityief Plate iEi ure l-laandfiiandi ialsolemrlqyedi irso The ends of the strap 14 which are secured to the roll 16 are provided with eye members 20 for connection to the said eyes 18 in the manner clearly shown in Figure 6, or in the modified form 10 which is identical. It will also be observed in Figure 6, that the straps 14 are trained over the rods 21 which connects the side rails 8-8 of the ladder.

A pawl 22 and ratchet 23 are also associated with the roll 16 for retaining the roll against unwinding and a removable crank 24: may be employed for rotating the roll.

In Figure 10, a modification is shown which involves a pair of sections generally referred to by numerals 2525. Each of these sections includes a pair of side bars 26-26 to which the flange plates 27 are secured and braced by the reinforcing straps 28. These flange plates 27 are also curved outwardly at their outer longitudinal edges as denoted by numeral 29.

As is clearly shown in Figure 10, the side bars 26-26 have their inner ends pivotally connected together at one longitudinal edge upper edges curved outwardly, a flexible member extending over the rungs of the ladder, plates connected with the flexible member and forming a bottom of a chute, the side walls of which are formed by the flanges with means for connecting one end of the flexible member to one end of the ladder and a roller supported by the other end of the ladder and to which the other end of the flexible member is connected.

In testimony whereof I aflix my signature.

WILLIAM EPPS ROBERTSON.

as at 30, while apertured ears or eyelets 31 V are provided along the opposite or longitudinal edge adjacent their abutting ends to receive the pin 32 which pin serves to secure the sections 25-25 in a rigid lined position.

For supporting the belt hereinbefore described, a plurality of rungs 33 connect the side bars 2626 and at one end of this modified structure a rung 34 is provided for engagement by the snap hooks 35 at one end of each strap 14. The ends of the straps at the other end of the modified structure are secured to the roll 16 in the manner consisttent with the description herein relative to g the ladder attachment.

Furthermore, thesame pawl and ratchet 3 the invention in detail, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is 1. A fire escape of the class described comprising a ladder, upstanding longitudinally extending members connected to the side rails of the ladder, and having their upper edges curved outwardly, a flexible member passing over the rungs of the ladder and having its ends connected with the ends of the ladder and plates connected to the flexible member and having their edges contacting each other, said plates forming a bottom of a chute, the sides of whichare formed by the flanges.

2. A fireescape of the class described comprising an extensible ladder, upstanding lon gitudinally extending flanges connected with the side rails of the ladder and having their

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