US761157A - Portable hoisting apparatus. - Google Patents

Description

No. 761,157. w PATENTED MAY 31, 1904.

4 I L.- DLPRAZEE.

PORTABLE HOISTING APPARATUS.

- APPLICATION FILED APR. 29, 1903 N0 EODEL. 3 SHEETS-SHEET 2.

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L.'D. FRAZEB. PORTABLE HOISTING APPARATUS.

APPLICATION FILED APR. 29, 1903.

3 SHEETS-SHEET 3.

N0 MODEL.

v m n g" 1': Mains PETERS c0 Pgwrmumm wnsum LORENZO DOW FRAZEE,

Patented May 31, 1904.

PATENT OFFICE.

OF TORONTO, CAN ADA.

PORTABLE HOISTING APPARATUS-1 SPECIFICATION forming part of Letters Patent No. 761,157, dated May 31, 1904.

Application filed April 29, 1903.

1'0 all whom it may concern:

Be it known that I, LORENZO Dow FRAZEE, a British subject, residing at 439 Spadina ave nue, Toronto, in the county of York, in the Province of Ontario, Canada, have invented a new and useful Improvement in Portable Hoisting Apparatus, of which the following is a specification.

The invention consists of a portable hoisting apparatus, and it has been particularly constructed for the purpose. of hoisting and putting through windows in the upper stories of buildings large, heavy, and bulky articles.

The apparatus isso constructed that it may be set up to communicate with the first, second, or third stories of buildings. The apparatus is so constructed that it may be quickly taken down or put up and compactly put together for transportation.

One of the chief advantages gained by my invention is that large articles may be put through the windows, as the parts of the apparatus fitting into the windows take up very little space, and I obviate the otherwise cumbersome block-and-tackle system where heavy timbers are necessary.

This invention has for one of its chief purposes the advantages of hoisting pianos with little or no strain to the instrument, whereas with other systems they are very liable to strain and scratches.

My invention also obviates the troublesome means of taking pianos to upper stories in houses where one has to contend with narrow and winding Stairways, as tipping and jarring a piano is always injurious. I v

In the drawings, Figure 1 is a perspective view of the hoisting apparatus in operation with a third-story window. Fig. 2 is a perspective view of the parts of the apparatus that enter the interior of the building. Fig. 3 is a perspective view of the base and hoisting mechanism. 7 Figs. 4 5, and 6 are sectional details of the tubular telescopic mast. Fig. 7 is a perspective view of the carrier with a pivotal sling attachment.

Like characters refer to like parts throughout the specification and drawings.

a is the base, consisting of a rectangular frame of a suitable size and construction. I

Serial No. 154,885. (No model.)

Extending upwardly from the base a is a pyramidal-shaped frame 6. Bracing the frame I) with the base a are truss-rods d. Bracing the upper part of the frame a are truss-rods e, and mounted in the upper part of the frame 5 is the hoisting-Windlass c.

Fastened to the base a is the end of a telescopic tubular mast f. The mast may be made in two or more telescopic sections. In the drawings I show two sections g and g. The lower part g of the mast f is pivoted between suitable lugs h, bolted to the base a. Projecting outwardly from the upper part of the frame I) is a keeper c, which surrounds and braces the mast and keeps it erect and in a vertical position. Connected with the upper end of the mast f and projecting in through one of the upper windows in a dwelling-house,

- as shown in the drawings, is a pair of tracks on suitable standards is. The standards is are,

set in a suitable base Z, fitted to the floor of the room. The upper ends of the standards is connect with projections m on the side of the tracks j.

Each of the standards consists of two parts is and 70 The part if is fitted within the part is for the purpose of adjusting to the different heights of windows. In adjusting the standards they are locked in the desired position by a wedge-lock n, fitted between a collar on the part 7c and the part 70 To brace the tracks firmly from lateral and longitudinal displacement, I fasten to each side of the window-frames a clamp 0, and to the top of each of the lugs m is a clamp 0. Connecting the clamp 0 with the clamp 19 is a truss-rod q.

Mounted on each of the tracks 7' are trolley's 1-. The winding-Windlass c is mounted in bearings s, fitted to thetop of the frame I), the drum of the Windlass being made in two parts 0 and c and are mounted on a shaft '0 On the outer ends of the shaft o are cranks u and u. Fastened to the shaft between the ends of the drum parts 0 and 0 and the bearings are ratchets o, and bolted to the bearings s are brackets w. Pivoted to the brackets w are pawls 0a.. The pawls w engage with the ratchets o and prevent backward turning of the ward travel of the trolleys. 'ings on the inner ends of the tracks 7' is a shaft 5, and mounted on each end of the shaft are pawls 8. I are cranks 9. Passing around the drums 6 .tervals are a series of notches Windlass as the apparatus is being operated. Passing around the drum parts o and c are hoisting-cables yand y. The cables pass upwardly and over sheaves 2, fastened in the side of the track 1', then overapulley z in the trolley r, and down and are connected with the hangers l and 2 of the carrier 3. The drums 0 and 0 are held together by clamps o oppositely disposed and fastened to the rims of the drum. The purpose of making the drums of the Windlass in two parts is that one drum or other may be rotated to tighten or slacken either of the cables 3/ and y independently. The drums may be loosened to r0- tate independently by loosening the clamps o Fastened to each of the inner sides of the tracks 7' are stop-blocks 4 to check the out- Fitted in bearadjacent to the tracks are winding-drums 6.

Mounted on the same, shaft are ratchets 7.

The drums 6 and ratchets 7 are rigidly keyed on the shaft 5. Pivoted to the sides of the tracks and engaging with each of the ratchets On the outer ends of the shaft 5 and out through the window and connected to a projecting lug 10 on each of the trolleys r is a winding-cable 11.

In the lower part g of the mast f and extending to slightly above the top is a rod Along one of the edges at predetermined in- Fitted to the side face of the rod g is a similar rod 9 somewhat shorter than the rod The rod '9 is likewise provided with similar notches g, arranged at the same intervals apart, and

is arranged to be raised or lowered to bring the notches together or move them apart and provide a plain edge. Passing through the mast f is a slot lb, through which passes an adjusting and locking bolt 71/ engaging with the rod 9 Pivoted to the lower inside. end of the part 9 of the mast f is a bifurcated spring-dog if, the bifurcation-jaw riding on the notched edges of the rods 9 and 9*. Clamped around the lower part of the part 9 of the mast f isawindlassm- Passing around the drum on of the Windlass m is a cable of.

The cable m asses around the drum m through an opening m in the part g of the mast f, upward and over a pulley a in the rod 9 and connects with a lug n in the part g of the mast f.

To raise the mast f to the required elevation, the bolt 71 is adjusted and drawn upward, which raises the rod g. The rod g is forced upward until the notches g are brought opposite the notches g in the stationary rod g Then the crank m of the Windlass m is turned to rotate the drum 722 which winds up the cable in, passing over the pulley n in the rod g and raises the part g of the shaft 7 upward, the jaws of the dog [b3 engaging with the edges of the rods g and 9 until the proper elevation'is reached, when the upward motion ceases and the dog 7L3 drops into the notches g and g and is prevented from dropping by gravitation.

To lower the rod, the bolt k is drawn downward, which draws with it the rod g, which causes the notches g to be moved into different positions and provides a flush edge along the rods 9 and g and disengages the dog if from the notches and allows the dog if to slide along same without springing into any of the lower notches.

In operating the apparatus to hoist freight the cranks a and a are turned to rotate the drums 0 and '0, keyed to the shaft 41 As the drums are being rotated they wind up the cables 3/ and g, which pass over sheaveszin the tracks 1' and over the pulleys a in the trolleys r, mounted on the tracks ,7 and down and are hooked to the rings 8 and s in the hangers l and 2 of the carrier 3. When the cables y and y have been wound up to their full extent, the pins 8 and s, projecting from the sides of the hangers 1 and E2, engage with trip-hooks s and s, pivoted to the sides of the trolleys 7'. When the carrier 3 has been attached with the trolleys r, the cranks 9 on the shaft 5 are turned, which in turn rotates the drums 6 and winds up the cables 11, fastened to the trolleys r, and draws them inward along the tracks j, carrying within the carrier 3 until the inward travel is checked by the lugs m on the tracks f. To lower the carrier to the floor, the pawl or, engaging with the ratchet o of the hoisting-Windlass c is tripped, and by turning the cranks a audio to the reverse or backward the cables y and y are slackened and permit the carriers 3 being lowered to the floor.

To remove freight from a building, the reverse operation is carried out with the addition to disengage the carrier from the trolleys the trip-hooks's and s" are tripped by cords 15, connected with the hooks s and s and passed in through the windows,where they may be operated by persons in the building.

In Fig. 7 I show connected with the rings of the carrier a supplementary pivotal coups ling to be used in connection with the hoisting-cables 3/ and y where it is necessary to turn the carrier in the opposite direction to that shown in the drawings, Fig. 1} in hoisting.

What I claim as new, and desire to secure by Letters Patent, is

1. In a portable hoisting apparatus, a baseframe, an upright frame erected thereon, a telescopic extension-mast, set and extended vertically from said base, tracks engaging with the upper part of said mast and the window, door, or other openings, of a house or building, the inner ends of said track supported on adjustable standards, a hoisting device connected with said upright frame, and trolleys mounted on the said tracks, substantially as specified.

2. In a portable hoisting apparatus, a baseframe, an upright frame erected thereon, a telescopic tubular extension mast erected from the said base-frame, tracks engaging with the upper part of said mast, and the Windows or door of a house or building, the inner ends of said tracks supported on standards, or other supports, said standards vertically adjustable to the said tracks, a hoistingwindlass consisting of a double winding-drum, with suitable revolving and locking gear, mounted in the said upright frame, hoistingcables engaging with the drums, and trolleys mounted on the said tracks, the free ends of said cables adapted to engage with a carrier, the said carrier adapted to engage and connect with said trolleys, substantially as specified.

3. In a portable hoisting apparatus, a suitable base and frame, a telescopic tubular or other adjustable mast erected from said base, a keeper surrounding and fastening said 'mast with frame part of said base, tracks connected with the upper part of said mast, and extending at right angles therefrom, adjustable extension-standards supporting the inner ends of said tracks, trolleys mounted on the said tracks, a hoisting-Windlass mounted in the said base and frame, cables connected with drums of said Windlass, the cables passing over sheaves in the said tracks, and over pulleys in the said trolleys, the free ends of said cables adapted to engage with hangers of a suitable carrier, the hangers of said carrier adapted to engage and connect with trip-hooks of said trolleys, a winding-Windlass mounted on a shaft set in bearings in the'inner ends of said tracks, and cables connecting said trolleys with drums of said Windlass, suitable revolving-and locking gear in connection with said Windlass, substantially as specified.

4. The combination in a portable hoisting apparatus, of a tubular telescopic extensionmast, two notched bars passing throughthe center of the largertelescopic section, a springdog pivoted to the lower inside of the smaller telescopic section, said dog adapted to engage with the notches on the said rods, and maintain the smaller telescopic section in its elevated position, and means to raise the extension part of said mast, substantially as specified.

5. The combination in a portable hoisting apparatus, of a tubular or other telescopic extension mast, tWo notched bars passing through the center of the larger telescopic section, a spring-dog pivoted to-the lower inside of the smaller telescopic section, said dog adapted to engage with the notches in the said rods, a Windlass clamped to the larger telescopic section, a cable connected with the drum of said Windlass, said cable passing through an opening in the'said mast, and up and over a pulley in one of the said rods, and

6. The combination in a portable hoisting.

apparatus, of a tubular telescopic extensionmast, two notched bars passing through thecenter of the larger telescopic section,aspringdog pivoted to the lower inside of the smaller telescopic section, said dog adapted to engage with the notches in the said rods, one of the said rods adapted to be adjusted, and throw said dog out of engagement with notches in said rods, and a clamp adapted to hold said rod in its adjusted position, said clamp engaging with the lower telescopic section, and means for lowering and raising said smaller telescopic section, substantially as specified.

7. The combination in a portable hoisting apparatus of a Windlass mounted in a suitable frame, said Windlass consisting of two winding-drums mounted on a shaft, the said shaft fitted in bearings in the said frame, a clamp member coupling the said drums, the said drums adapted to be used independently or together, cables connected with the said drums, and in engagement with trolleys mounted on suitable elevated tracks, the free ends of ..the

said cables connected with a suitable carrier, and means for rotating and locking said drums, substantially as specified.

8. The combination in a portable hoisting apparatus ofa suitable carrier, said carrier consisting of a platform, said platform provided with hangers, the said hangers having eyes in which are hooked the free ends of hoisting-cables, the said cables passing over pulleys in trolleys, the said pulleys mounted on overhead tracks, the said cables carried down and in engagement with a Windlass mounted in a frame, the said Windlass arranged near the base of an elevated telescopic extension-mast, the said mast supporting the one end of the said tracks, the said hangers having pins projecting from the sides thereof,

and the said pins adapted to engage with triphooks pivoted to the sides of the said trolleys, substantially as specified.

9. In a hoisting apparatus the combination of a mast, atrack running into an opening in a building, a carrier or platform for carrying a load, and means for leveling up said carrier by tightening or slackening one of the cables, and means for raising or lowering either side of the said carrier, substantially as specified.

Signed at Toronto this 23d day of April, 1903.

L. D. FRAZEE.

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