US694866A - Fire-escape. - Google Patents

Description

Patented Mar. 4, [902. F. KASCHEWITZ & P. BARTHEL.

FIRE EscAP. [Application filed. Sept. 5, 1901 2 SheeisSheBf L (No Model.)

THE NORRIS 9EIERS CO PNQTWLITHGM WASHINGTON. D. C

Patented Mar. 4, !902. F. KASCHEWITZ &. P. BARTHEL.

FIRE ESCAPE.

(Application fllad Sept. 5, 1901.) v

2 $heets$heet 2.

(No Model.)

' fidzarfiaz UNITED. STATES PATENT Choice.

FRIEDRICH KASCHEWITZ AND PAUL BARTHEL, OF GOTHA, GERMANY.

FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 694,866, dated March 4, 1902. Application filed September 5, 1901, Serial No. 74,438. (life model.)

have invented certain new and useful Improvements in Fire-Escapes, of which the following is a specification.

Our invention relates to an appliance for saving from fire; and it consists ofa numberof tubes telescoping into each other and which can be extended by means of a winch, the tubes being mounted on a framework adj ustable so as to incline at any angle and revolving on a pivot and which runs on Wheels. The tubular arrangement when extended by the aid of suitable catches, which can be manipulated from below, forms a mast, on the upper end of which is fixed a pivoting-arm fitted with rope-pulleys, such arm being attached before the apparatus is extended to the desired height, orit may be permanently fixed thereto. This arm is directed toward the building on fire, from which human beings, animal's, valuables, or the like are to be removed. The upper end of the rope which passes over the pulleys on the aforesaid arm carries a hoisting-cage or the like, andthe lower end of the rope is fastened on the rope-' drum of a Windlass. This Windlass, like the winch before referred to for extending or collapsing the tubes forming the mast, is rigidly attached to the pivoting -'frame, and this frame is so arranged that in casethe supporting-carriage should not stand in a horizontal position on account of the nature of the ground it can be placed in a position with regard to the carriage that the mast is always strictly vertical. Each of the tubes comprising the mast is about the height of one story, and as many tubes are telescoped into each other as will equal the number of stories in the highest dwelling-houses of the town in question for which the arrangement is intended.

In the annexed drawings a form of the in vention is illustrated, in which- Figure 1 shows an elevation, partly in section, as arranged for transport or when not in use. Fig. 2 shows the arrangement when in use, and Fig. 3 is a plan. vIn Fig. 4 it has of the screws 2.

been assumed that the carriage on which the appliance is mounted is resting on sloping ground and the device has been adjusted so as to occupyavertical position. Figs. 5 and 6 show sectional details.

The construction, manipulation, and mode of action of the illustrated device are as follows:

A cast-iron base 3 is supported on the carriagelinsuchamanner thatitcan be adj usted so as to incline to any desired angle by means The screws 2, which may be provided with hand-wheels 4, work in nuts arranged in the carriage-plate 1 and are each provided with a flange 5, which the casting 3, is freely supported. Any vertical displacement of the casting 3, through which the screws 2 loosely pass, is prevented by the bosses or hubs of the hand-wheels 4, Figs. 1, 2, t. As the casting 3 is square in plan, it is advisable to employ four screws 2, one at each corner thereof.

In the center of the casting 3 is the framework for the mast, consisting of a fixed tube with the grooves 10 are longitudinal grooves 11, which only extend from the top downward for about two-thirds of the length of collar 9tha-t is to say, they are not of equal length thereto. A somewhat longer tube 12 is inserted in the tube 6, the external diameter of which corresponds with the internal diameter of collar 9, so'that the tube 12 is accurately guided by the collar 9. The tube 12 is provided with longitudinal ribs 13, which do not quite reach to its lower end and which engage with the full length longitudinal grooves 10 ofcollar 9, Figs. 5 and 8. If the tube 12 is drawn upward out of the tube 6, the ribs 13 will slide in the grooves 10 and thetube 12 be prevented from revolving in the tube 6; but as soon as the ribs 13 are clear of the grooves 10 the tube 12 will be at full liberty to revolve. It now it is turned so that its ribs 13 can engage with the grooves 11, which do not extend downward through the full length of collar 9, the tube 12 will be held fast in the raised or extended posit ion.

Sliding in tube 12 is a tube 14, inserted in the same manner as the tube 12 within the tube 6, beforereferred to, this tube 14 being likewise of the approximate height of one story.

As hereinbelore stated, as many tubes 12 14 may be inserted in each other as will correspond to the number of stories to which the fully-extended mast is to reach when in its upright position. The last of these telescopic tubes-that is to say, the one of the smallest diametercarries an arm 15, which is arranged so that it can easily be attached by means of a swivel arrangement and carries at its upper or free end a sheave 16. The upper end of the support 17 ot' the arm 15, which is inserted in the innermost tube of the mast, is likewise provided with pivoting arrangement and is provided with a sheave, 18. The arm is extended to the rear and terminates in an eye 19, which forms a guide for the rope 20. The rope is secured at one end to the rope-drum 21 of a special Windlass 22 of any suitable construction and carries at its other end a hoist or cage 23 of any optional suitable size and construction. The Windlass 22 is rigidly attached to the frame 8, which frame revolves on the tube 6. This frame further carries a winch 24, the racks of which are of the approximate height of one story and are placed diametrically opposite to each other and guided on the revolving frame 8 by suitable vertical guides. The free upper ends of these winch-racks 25, the purpose of which is to raise or lower the telescopic tubes, have sockets 26, carrying pins 27, radially directed toward the telescopic tubes. These pins 27 are constantly pressed against the aforesaid tubes'by spiral springs 28, lodged in the sockets 26, the tubes being provided at intervals around the heads 29 with radial holes 30. The outer ends of these pins 27 are connected by means of an articulated joint with the angle-levers 31, which are pivotally supported on the racks 25. The opposite ends of the angle-levers have attached to them a meanssuch as a cord, wire, or the like-for actuating the lever from below, and by this means the pins 27 can be disengaged when desired.

The frame 8 has at its foot a toothed annulus 33, with which gears a pinion 34 of aspecial hand-crank 35. If this crank 35 (which may be replaced by a hand-wheel) is turned in either direction, the frame 8, and with it the winches 22 and 24, as well as the pins or bolts and their sockets and actuating-lever, will be caused to revolve in one or other direction on the fixed tube 6.

WVhen the device just described is to be used, the frame is in the first place brought into a vertical position (presuming that the carriage 1 is standingin a somewhat-inclined position in front of the burning building) by a suitable adjustment of the screw-spindles 2 by means of the hand-wheel 4. Thereupon the arm 15 is fitted upon the innermost of the telescopic tubes. The rope is passed through the eye 19, carried over the pulleys 16 and 18, and attached to the cage 23. This latter manipulation will only be necessary if the arm 15, with its accessories, has not previously been fixed in position,which it may be, even during the transport of the appliance, with the exception of the cage,which might be tied on below. If the arm 15 is already in the position indicated, it need only be turned toward the burning building on arrival in front thereof. The crank 35 is turned in a given direction until the catch-pins 27 engage the holes of the innermost tube 14. When this takes place, the winch 24 is turned so that its racks 25 are raised, whereby the innermost tube 14 is extended. When the latter has reached its highest point, which will be recognized by the fact that the racks cannot be moved farther, the operation of the winch 24 is suspended, and the crank is again turned until the frame 8 has reached the pin 36 on the fixed tube 6. The longitudinal winch 13 of tube 14 will thereby be brought exactly over the grooves 11, which do not extend through the full length of the collar of the next larger tube 12. If now the rackwork-winch 24 is turned back, the tube 14 will be lowered, so that its ribs 13 enter the grooves 11 until they are stopped at the lower end of the grooves. The catch-pin arrangement 27 is now released by means of the arrangement 32, whereupon the racks 25 are free to be moved downward. During this operation a man will be stationed at the rope-Windlass 22 and will as soon as requisite ease the rope 0% the rope-drum, so that the loose length of rope may be extended in accordance with the height attained by the extended mast. When the racks 25 have again arrived at their lowermost point, the revolving frame 8 is turned again by a suitable motion of crank 25 until the catch-pins 27 catch into the holes 30 of the next tube 12, and the process just described is repeated un til a sufficient number of telescopic tubes have been extended to reach the requisite height.

After use the above-described operation is reversed in order to fit the device for transport again.

The cage 23, which is utilized for saving purposes, is applied in any known manner.

Having now particularly described and ascertained the nature of our said invention and in what manner the same is to be performed, we declare that what we claim is 1. A device for saving from fire, having telescoping tubes, such tubes being individually extended and lowered by means of a rackwork-winch arranged on the frame, the connection between the rack and the tubes being established by means of a catch pin or bolt Game i f s operated from below, substantially as herein the tubes, means below the pin for operating described and illustrated by the appended" the Same, and meohanism for actuating said drawings. I pinion. I A saving appliance orfire-escape eonsist- In testimony whereof we have hereuntoset I 5 5 ing ofa plurality of tubes,one of the tubes havour hands in presence of two subscribing witing grooves and the cooperating groove havnesses. v 1 l b ing ribs to travel in said tube and the grooved v. FRIEDRICH KA SOHEWI'IZ, tube having recesses alternating with the PAUL BARTHEL. l 5 grooves and adapted to receive the ends of Witnesses: o the ribs, 21 rack, a pinion meshing with said MAX MEYER,

reek, a pin for conpling said rack to one of .1 WILHELM BRUDEWALD.

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