US1581660A - Fire escape - Google Patents

Description

3 Sheets-Sheet 1 9 F qll INVENTOR April 20 1926. 1,581,660

M. ROSGAARD FI-RE ESCAPE F' iled Sept. :50, 1921 a Sheets-Sheet 2 R IN NTOR W BY A ATTORNEYS April 20, 1926. "$581,660

M. ROSGAARD FIRE ESCAPE v Filed Sept. so, 1921 a Sheets-Sheet s INVENTOR BY ATTORNEYS Patented Apr. 20, 1926.

UNITED STATES MARIUS ROSGAARD, oE BROOKLYN; NEW YORK.

EinE ESCAPE. 7

Application fi1ed September 30, 1921. Serial No. 504,419.

To all whom it may concern:

Be it known that I, MARIUS ROSG'AABD, a citizen of the United States, residing in Brooklyn, county of Kings, State. of New York, have made a certain newandIuseful Invention in Fire Escapes, of which the following is a specification. f v

This invention relates to that class of fire escapes which is extensible and portable,and it is my object to provide a fire escape which may be supported on a suitabletruck for quick transportation to the place ofneedand where it may then be quickly run up, to any desired window or opening of agbuilding from which persons are to be rescued.

A further object includes the provision of an extensible, chutedevice which is, provided with extension and adjusting means for elevating andadjusting the chutedevice as occasion may require.

Other objects willappear hereinafter, and I attain these objects by the mechanism illustrated in the accompanying drawings in which: I

Figure 1 is a view of a side elevation wherein the chute is partially extended and partiallyelevated.

Fig.2is an end view. v; .1

Fig. 3 is a view of the bed plate and adjusting mechanism. 1

Fig. 4 is a view Fig. 5 is a plan view of the bed plate. showing the lateral and longitudinal adjusting mechanism. M I v c Fig. 6 is a sectional view taken 1' on lines 66 of Fig. 2. i H j j Fig. 7 is a sectionalview taken on lines 77 of Fig. 1.

Fig. 8 is a view of the end of the chute.

Similar numerals refer to like parts throughout the several views.

Referrin now to the drawing, a bed plate 10 is suitably supported by castors or rollers 12 on a bearing plate 13, which bearing plate may be suitably fastened to the body 14, of a motor truck, or other means of conveyance. Supporting angle brackets 15 are securely fastened in a vertical position to the bed plate by means of bolts 16. Near the apex of the angle of each bracket there is pro vided a bearing surface 17 which carries the journal bearing 18 for the chute hereinafter described.

. drive worm 21.

taken on lines of. Fig. 1,. looking in the direction of the On the bearing plate 13 there is secured PATENT 'oFFicE.

the laterally adjusting anchor block com prising an angle plate 19, on which are spaced uprights 20, which uprights are provided with bearing surfaces for carrying the This worm engages with On a diameter of the bed plate butsubjstantially parallel with the angle brackets and approximately midway therebetween,

there is secured the chute elevating block.

This block, in a preferred form, consists of a main trough-shaped member 23 having smooth edges or tracks 24; a rear bearingplate 25, and a front bearing and supporting plate 26. Journaled in the bearing plates is the drive worm 27 on which operates the elevating block 28 to slide back and forth on tracks 24 when the drive worm is operated. Pivotally connected at one end to the elevatingblock, by screws or rivets 29 and 30, are the elevating arms 31 and 32. The other end vof each of the elevating arms is pivotally connected to the chute block 33 for raising and lowering the outer end of the chute in the manner readily understood.

The chute consists, in a preferred form, of a main or bottom member 34 and a number of, telescoping members 35, 36, 37, etc., the upper section of which may be provided with safety hook 7c, and all the membersare U- or trough-shaped, as is best illustrated by Figs. 4 and 7. The main member is composed of a number of united sections, (a), and a curved lower section At the end of the lower section there is mounted the catch or collectorbasket 38, which may be folded and hooked in place as is indicated by the dotted lines, for moving or storing when the apparatus is not in use.

The successive sections 35, 36, 37, etc., are each a little smaller than its preceding section, to telescopically slide one into the other, and all the sections are open at the upper side and section 35 is provided with bars or ladder rounds 39. The several sections are slidably held and guided by guide clamps 40, 41, 42, etc., and are moved, or expanded and contracted by the operation of lazy-tongs 43 on either side.

The lazy-tongs comprise a number of short members C, C, etc., and a pair of longer members I and g, the latter of which is best illustrated by Fig. 4. These members are pivotally united to the several movable telescopic sections at g and are operated by the inner and outer sectors (1 and e which are joined to the longer members at h. Teeth on the outer curved surface of sectors d and e mesh with cogs on gears 44, and

the sectors are held in proper relation by bearing rollers 45. These gears are operated by bevel gears '46 which in turn are connected to drive shafts 47 and 48 for be ving operated by any suitable mechanism, as

a Worm drive 49. Connected to shafts 47 a1rd-48 are bevel gears 50 and 51, respectively, for transmitting motion toshaft 48 through the agency of bevel gears 50, 51

and 52 in the manner well understood. It

is obvious that in place of the operating handles 53, 54 and 55, suitable motors (not shown) may be used.

From the above description the use and operatlon of my lnventlon is readily understood. If it is desired to use my device as a 7 fire escape, the apparatus is rushed to a suitable posltlon and under the opening from which exit is to be made. The operating handle 54 is placed into operation toelevate the chute and at, or about the same time,

handles 55 and 53, respectively, for adjust ships, warehouses, stores, etc., onto trucks 1n a quick and efficient manner, and in all cases the apparatus 1s of size and construction to meet the conditions under which it is used.

While I have described a specific embodiment of my invention I desire it to be understood that I do not thereby wish to limit myself unnecessarily as various modifications falling wholly within the spirit and scope of my invention will readily suggest themselves to those versed in the art. What I claim, therefore, as new and desire to secure by Letters Patent, is

s 1. Ina fire-escape apparatus, the combination of a wagon body, a turntable upon saidbody, upright brackets on said turntable, extensible chute members mounted on said brackets, adjusting means connecting said chute and turntable for varying the inclination of the chute and lazy-tong members for extending and retracting said chute members.

2. In a fire-escape apparatus, the combination of a wagon body, a turntable upon said bod upright brackets on said turntable to e turned therewith, a main chute member p-ivotally mounted on said brackets, a plurality of consecutively smaller chute members slidably mounted and sup-ported bysaid main chute member, lazy-tong members mounted on said main chute member and pivotally connected to each of said smaller chute members and means for quickly extending and collapsing said lazy-tongs and the associated chute members.

3. A fire-escape apparatus comprising a main chute member curved at one end, a basket for said curved end, a plurality of auxiliary chute members mounted to slide telescopically within said main chute member, pivot members secured to one end of each of said auxiliary members, expansible members attached to said pivot members and operating means carried on said main chute member for quic ing said auxiliary members.

4. A. fire-escape apparatus comprising a main chute member, a plurality of auxiliary chute member mounted to slide telescopically within said main chute member, said chute members being substantially U- shaped in cross-section, guide bars uniting the sides of said chute members and lazytong members for rapidly extending and collapsing said chute sections.

In test1mony whereof I have hereunto set my hand on this 28th day of September MARIUS ROSGAARD.

kly' collapsing and extend

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