US919393A - Crane, fire-escape, and similar apparatus. - Google Patents

Description

I. P. TAYLOR. CRANE, PIRE ESCAPE, AND SIMILAR APPARATUS.

APPLICATION FILED MAB.. 30, 1908.

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GRANB, FIRE ESCAPE, AND SIMILAR APPARATUS. APPLICATION FILED MAILSO, 1908.

919,393. Patent-ea Apnz?, 1909.

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n braked by the load, the power ot' the brake m the stanchion to be completely inside and,

ISAAC FRANCIS TAYLOR, OF EAST DULWIC-H, LONDON, ENGLAND.

CRANE, FIRE-ESCAPE, AND SIMILAR APPARATUS.

Specification oi? Letters Patent,

Patented April 27, 1909.

Application led March 30, 1908. Serial No. 424,247.

T o all whom 'it may concern.'

Be it known that l, Isaac FRANCIS TAY- LOR, of 5 Upland road, East Dulwich, in the county oi' London, England, van builder, have invented certain new and useful lmprovements in Cranes, Fire-Escapes, and Similar Apparatus, of which the following is a full, clear, and exact description, and lor which application for patent has been made, No.20,664 of 1907, dated September' 17, i907.

This invention has reference to improvements in cranes, lire-escapes and similarl apparatus, and has for object to provide an apparatus which is readily adaptable to any window or opening and when litted but out of use not obstructive yet ready Al'or immediate use. A small winch is pivoted to a 'fixed stanchion inside lthe window or opening so that the winch can be revolved around say, behind shutters or curtains, or can be revolved so that the j ib is outside and clear el' the wall. The stanchion is iitted with adjustable brackets or other means so that it can readily be attached to any window or opening, or be inclined in case of a dormer window. The winch rope is automatically varying according to the weight of the load.

Upon the accompanying drawings, l have shown two forms of carrying out the in vention.

Figures l and 2 are respectively a 'front and a side elevation ol' the device fitted with a single ro e. Figs. 3 and 4 are similar views of a doubie rope device. Fig. 5 is an enlarged view in side elevation of the brake support and operating mechanism. Fig. 6 is an elevation oll a geared spindle sometimes employed.

The stanchion a in Figs. l and 2 is shown suited for atliXing to the inside of a window frame and provided with sockets b b. Into these sockets lit pivots c secured to or formed on a post c which is duplicated at d, these members c d being riveted together at top and connected at bottom by a cross bar d to form a frame. This frame formed oll the members c d can thus swing around the pivots c and it carries intermediate of its height a transverse spindle e suitably journaled in position and having a squared end projecting beyond the member d as shown at e so that this spindle may be rotated by means of any suitable crank handle. The jib f which is also a double member is pivoted at j" to the lower part of this 'frame c d and carries at its outer end a pulley g revoluble on a cross pin )'i.. This pin /t also secures a shackle i in place, the other end of the shackle being connected by a l'lexible connection such as a chain Z to one end ol a lever arm m the other end ol' which is pivoted in the lramc c d. intermediate ol its length this lover 'm is pivoted to a 'forked link n which carries a loop oll stripv metal `forming a band brake o. This loop may be lined with wearing material il` desired, in the ordinary manner ol' band brakes.

Upon the spindle e is keyed or otherwise mounted a drum or pulley p on which may be.

wound a wire rope p and by the side ol the pulley p is a drum g around which is passed the band brake 0. The arrangement is such that when the weight of the load represented at af, see Fig. 2, tensions the connection or chain Z the lever m is raised thereby lifting the lever n and the band brake is consequently applied to and tightened about the drum; the braking action imparted to the drum g spindle c and rope-pulley p is directly proportionate to the load. In Figs. 3 and 4, a second rope-pulley r is illustrated which is mounted on the spindle c and the brake drum q is shown arranged between the two pulleys. A rope is provided on each pulley and these ropes are wound in opposite directions so that, the spindle e being revolved in the same direction, as one rope is wound up the other is unwound. ln this ease a second pulley g is provided at the end of the jib. More than two pulleys or Winches p r may be used if desired, a corresponding guide pulley at the end of the jib being provided for each. A third )ulley s is shown pivoted upon the undersi( e of the jib; this pulley serves to store one of the ropes when the apparatus is closed up and out of use and the rope from this pulley s is not connected to the pulley r until the rope p has been fully wound on its pulley p. Then the rear end of the second rope is secured to its pulley r and that rope is wound on pulley r as the rope p on pulley p is unwound. Thus whilo the apparatus remains in use one rope may always be wound up as the other is unwound.

lf desired, l may of course gear the spindle e to the pulleys p 1 and drum q so that one revolution of these pulleys will occur to more than one revolution of the spindle e; such arrangements in cranes and hoisting tackle are Well known and a suitable form is shown in Fig. 6, the pinion t mounted on the spindle i e meshing with a larger pinion u formed with or secured to ene of the pulleys p r.

I also provide means whereby when desired, as for instance in using a single rope to raise goods, the automatic braking action of the band Ybrake may be avoided. Thus I have shown in Fig. 5 a lever v which when operated in the manner indicated will remove the tension from the link a and cause the brake drum to be freed from the brake. Other equivalent devices might be employed for releasing the brake, as for instance by removing the tension from the connection l.

The ends of the ropes are provided with hooks, slings or other suitable devices dependent upon the particular purpose or purposes for which the apparatus is designed or used. Thus the improved crane can be used for raising and lowering goods from windows, for use with brewers drays, launching lifeboats and similar urposes. rhe device may also be used as a 're-escape in which case the sling or a basket, carriage or the like is utilized. I have shown a suitable form of sling w in Fig. 4 of the drawings. T he eye of the sling may be provided with a guide line so that instead of falling vertically the rope may be drawn out away from the vertical, and this line may be passed around a pulley xed to the ground or other similar support,

The support shown in Figs. 3 and 4 is more particularly suited for use where no uprights are available for the socket frame, or for use where a balcony intervenes between the window' and the ground.

When not in use the jib may be folded up against the frame, this being possible by reason of the operative connection between the jib end and the pivoted lever m being made iexible.

Having thus described my invention what I claim as such and desire to secure by Letters Patent is l. An apparatus of the character described, comprising a jib, a frame to which said j ib is p ivoted so that it may swing in a vertical plane, a flexible connection between the free end of said jib and the frame, a rotatable member mounted in said frame, a rope passing from said member over the end of said j ib and adapted to support a weight, and a brake connected to a part of thesaid flexible connection and adapted to automaticallyT brake said pulley by said weight.

2. An apparatus ofl the class described, comprising a jib, a frame to which said jib is pivoted, a connection between the free end of said jib and said frame, a rotatable member revolnble in said frame, a rope passing from said member extending along said j ib and adapted te carry a, lead. a brake for SaidV rOz-'Gtable member, means connected to and operated by said connection for applying said brake to said member, said means operated by the weight of the load, and means for freeing said rotatable member from the action of the brake.

3. An apparatus of the class described, comprising a j ib, a frame to which said jib is pivoted at bottom, a connection between the free end of said jib and said frame, a rotatable member on said frame, a rope passing from said member over the end of said jib and supporting a load from said jib, means connected to and operated by said connection for braking said member against rota.- tion, and means for applying said brake operated through the connection between said jib and said frame.

a. An apparatus of the class described," comprising a jib, a frame to which said jib is pivoted at bottom, a flexible connection between the free end of said jib and said frame, a rotatable member carried by said frame, a rope adapted to be wound upon said member i and passing over the end of said jib, the free i end ot said rope capable of supporting a load,

means connected to and operated by said connection for imparting a braking action to said rotatable member, said means operated by the weight of the load and said braking action being proportionate to the weight or the load. l 5. An apparatus of the class described, i comprising a jib, a frame to which said jib is pivoted at bottom, a exible connection between the free end of said jib and saidv frame, a rotatable member carried by said frame, a rope adapted to be wound upon said member and passing over the end of said jib, the free end of said rope capable of supporting a load, means connected to and operated by said connection for imparting a braking action to said rotatable member, said means operated by the weight of the load, and means for freeing said rotatable member from the braking action.

6. An apparatus of the class described, comprising a jib, a frame to which said jib is pivoted at bottom, a flexible connection be-v a rotatable member carried by said frame, a rope adapted to be wound upon said member and passing overthe end of said j ib, the free end of said rope capable of supporting a load, means connected to and operated by saidI connection for imparting a braking action to said rotatable member, said means operated by the weight of the load, said frame being mounted in a support so as to allow said frame and j ib to be swung around.

7'. An apparatus of the class described, comprisingv a jib, a frame to which said ,iib is pivoted at bottom, a flexible connection bef tween the free end of said ji-b and saidframe, said connection including a pivoted lever arm, a spindle carried in said frame, a pulley mounted on said spindle, a rope wound on tween the free end of said jib and said frame,

said pulley and passing over the end of said jib, a brake to hold said pulley against rotation, and means connected with said lever arm for operating` said brake, said means being actuated by the weight of a load carried by said rope.

8. An apparatus of the class described, comprising a jib, a frame to which said jib pivotedat bottom, a flexible connection between the free end of said Iiib and said frame, a spindle carried in said frame, a pulley brake, said means being attached to said -flexible connection at a point between the opposite ends thereof and being,` operated through the aforesaid connection by the weight of the load suspended from said jib,

mounted on said spindle, a rope wound on i said pulley and passing` over the end of said jib, a brake to hold said pulley against rotation, means attached to said connection intermediate of its length for operating said brake, said means beingl actuated by the weight of a load carried by said rope, and means for removing such brai-:ing action from the pulley.

9. An apparatus of the class described, comprising a jib, a frame to which said jib is pivoted, a connection between the end ol said jib and said frame, said connection including a pivotally mounted lever, a spindle carried by said frame, a rotatable member mounted on said spindle, means for winding' l on said member a plurality of ropes, said ropes being wound in opposite directions and passing over the free end of said jib to support loads thereby suspended from said jib, and means connecting,l with the lever arm at one side of the pivot for applying a braking action to said rotatable member, said means o erated by the weight suspended from the ree end of the jib.

10. An apparatus of the class described, comprising a jib, a frame to which said jib is pivoted, a connection between the end o1 said iib and said frame, a spindle carried by said frame, a rotatable member mounted on said spindle, means for winding on said member a plurality of ropes, said ropes being' wound in opposite directions and passing; over the free end of said jib to support loads thereby sus ended from said jib, a brake capable of eing applied to said rotatable member, said brake being attached to said connection at a point between opposite ends thereof, and means for actuating said brake, said means being operated through the aforesaid connection by the weight ol the load suspended from said liib.

11. An apparatus of the class described, comprising a jib, a frame to which said jib is pivoted, a connection between the end of said jib and said frame, a spindle carried by said frame, a rotatable member mounted on said spindle, means for winding on said member a plurality of ropes, said ropes being wound in opposite directions and passing over the free end of said jib to support loads thereby suspended from said jib, a brake capable of being applied to said 'rotatable member, .and means for actuating said and a device for removing,A the action of the weight-operated connection from the brakeactuating means.

l2. An apparatus of the cla-ss described, comprising a jib, a frameto which said iib is pivote-d, a connection between the end of said -iib and said frame, a spindle carried by said frame, a rotatable member mounted on said spindle, means for winding on said inember a plurality of ropes, said ropes being wound in opposite directions and passing' over the free end of said jib to support loads thereby suspended from said jib, and means for applyingl a braking; action to said rotatable member, said means being attached to i the Yflexible Connection at a point between opposite ends thereof and beinel operated by the weight suspended from the free end of the jib, said frame being; mounted in a support by means of vertical pivots whereby said jib may be swung around horizontally.

13. An apparatus of thc class described, comprising a jib, a frame to which said jib is piyoted, a lover pivoted at one end to said frame, a flexible connection between the other end of said lever and the free end of said jih, a rotatable member mounted on said frame, a rope adapted to be wound on said member, said rope passing,l over the end of said iib and capable of sup )ortingg a load thereby suspended from thenjib, said jib and load adapted to tension said flexible connec tion, a brake aaplicable to said rotatable member, said bri ze operated and applied to said member by the tensioning of the flexible connection.

14. An apparatus of the class described, comprising a Iiib, a frame to which said j ib is pivoted at its lower end, a spindle mounted on said frame, a rotatable member carried by said spindle, means for revolving said spindle and member, a connection between the free end of said jib and said frame, a brake arranged adjacent to the rotatable member, means connecting' with the flexible connection at a point between opposite ends thereof, for applying said brake to said member, a rope from said member passing over the end of said j ib, a pulley mounted upon the underside of said jib, a second rope adapted to be wound on said pulley and to be transferred therefrom to said rotatable member, said ropes being' wound on said member in opposite directions, said ropes adapted each to carry a load, and said operative means for the brake being' actuated by the rope-carried load.

l5. In an apparatus of the character described, a frame, a jib pivoted at bottom to said frame, a support, pivotal bearings btween said frame and said support, so that said frame can revolve in said support and swing the jib around horizontally, a transverse rotatable .member carried by said frame, means for rotating Said member, a brake drum secured to said member, a band brake encircling said brake drum, a link carrying said band brake, a lever pivoted at one end to the frame and carrying said link intermediate of its length, a flexible connection between the other end of said lever and the top of said jib, a rope adapted to be wound on said rotatable member, said rope passing over the top ci said jib and capable of carrying a load thereby suspended from said jib, the weight of said load tensioning said iiexible connection and applying the brake to the brake drum.

16. In an apparatus ol the character described, a frame, a jib pivoted at bottom to said frame, a support, pivotal bearings between said frame and said support, so that said frame can revolve in said support and swing the}- ib around horizontally, a transverse rotatable member carried by said frame, means for rotating said member, a brake drum secured to said member, a band-brake encircling` said brake drum, a link carrying said band brake, a lever pivoted at one end to the frame and carrying .said link intermediate of its length, a flexible connection between the other end of said lever and the top of said jib, ropes adapted to be wound on said rotatable member in opposite directions,

said ropes passing over the free end of the and apply the brake to the brake drum.

17. In an apparatus of the character described, a frame, a liib pivoted at bottom to said frame, a support, pivotal bearings between said frame and said support, so that said frame can revolve in said support and swing the jib around horizontally, a transverse rotatable member carried by said frame, means for rotating said member, a brake drum secured to said member, a band-brake encircling said brake drum, a link carrying said band brake, a lever pivoted at one end to the frame and carrying said link intermediate of its length, a Jflexible connection between the other end of said lever and the top of said jlb, a rope adapted to be wound on said rotatable member, said rope passing over the top of said jib and capable of carrying a load thereby suspended from said jib,

the weight of said load tensioning said iieXi- 1 ble connection and applying the brake to the brake drum, and a bell-crank lever pivoted to the frame and adapted when actuated to hold said link against the operative action of the tensioned flexible connection.

In witness whereof l have hereunto set my hand in presence of two witnesses.

ISAAC FRANCS TAYLOR. lVitnesses:

VICTOR F. FEENY, CYRIL J. FEENY.

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