US1299261A - Construction of towers. - Google Patents

Description

G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

APPLICATION FILED SEPT. 6. 1916 1,299,261 Patented Apr. 1,1919.

5 SHEETS-SHEET I. #7 JZ G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

APPLICATION FILED SEPT. 6. 1916.

1,299,261 JZ Patented Apr. 1,1919.

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CONSTRUCTION OF TOWERS.

APPLICATION FILED SEPT. 6. 1916.

1,Q99,261. Patented Apr. 1, 1919.

5 SHEETSSHEET 3.

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Gi i-12gb attozwm G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

APPLICATION FILED SEPT; 6. 1916.

1,299,261, Patented Apr. 1,1919.

5 SHEETS-SHEET 4.

.4. Z ya? 3 I I F m it G. R. TAYLOR.

CONSTRUCTION OF TOWERS.

- I APPLICATION Fl-LED S-EPT.6|19\6. 1,299,261, Patented Apr. 1,1919.

5 SHEETSS.HEET 5- Cl D D O T nrnn oration.

GEORGE R. TAYLOR, OF URBANA, ILLINOIS, ASSIGNOR OF ONE-HALF T0 SPENCER E.

- I HUFF, OF URBANA, ILLINOIS.

CONSTRUCTION OF TOWERS.

Specification of Letters Patent.

Patented Apr. 11, rate.

Application filed September 6, 1916. Serial No. 118,728.

I be carried from the ground to the top of the,

" structure in the course of erection. As is carry on the work. These towers or shafts are increased in height as'the height of the structure increases and it is customary to add to the structure from the top, thereby making it necessary for the men to work in a dangerous position.

Therefore, in carrying out the "present invention, it is my purpose to provide a tower or shaft of the class described which may be increased in height, (as the height of the structure being erected increases,) from the base of the tower, thereby enabling the tower to b built up from the bottom in contradistinction to building from the top, thereby enabling the shaft tobe erected with comparative safety.

Another object of the invention is the erec- "tion of a shaft or tower of the type described which will embody inits construction, among other features, a stationary base section and a movable section within the base section adapted to be elevated therein, in combination with a carrier mounted within the base section below the movable section and adapted to be elevated to elevate the movable section, and holding means designed to automatically engage the elevated movable section so that the carrier may be returned to th bottom of the base section and another movable section inserted between the elevated movable section and the carrier and se cured to the first movable section so that both sections may be elevated simultaneously to increase the height of the carrier, these additional movable sections being added whenever it is desired or necessary to increase the height of the shaft or tower to keep pace with the erection of the structure.

In the accompanying drawings:

Figure 1 is a view in side elevation of an extensible tower or shaft constructed in accordance with the present invention.

Fig. '2 1s a similar view taken at right angles to Fig. 1.

Fig. 3- is a horizontal sectional view on the line 3-3 of Fig. 1, parts being shown in top plan.

I Fig. 4. is a similar view on the line 44 of Fig. 1.

Fig. 5 is a longitudinal sectional view through the cable drums and associated parts.

Fig. 6 is an enlarged detail view of the automatic dumping'means for the bucket.

Fig. 7 is a collective view.

Fig. 8 is a detail view showing pawl and ratchet mechanism for retaining the winding shaft.

Fig. 9 is a detail view showing a device for temporarily retaining anelevated tower section independently of the elevating means. v

Referring now to the drawings in detail, 1 designates a base and upstanding from the base 1 is the stationary or base section 2 of the tower. This-base section is substantially rectangularin horizontal section and embodies vertical beams 3 having the lower ends suitably secured to the base 1 and the upper ends interconnected by means of cross beams 4 appropriately connected to the vertical beams 3 and coacting therewith to form the base section of the tower. In the pres- -ent instance, the vertical beams 3 are of angle iron cross section so as to-form guides for the inner movable section of tne tower. Mounted within the base section 2 and capable of vertical sliding movement therein is an inner movable section 5 embodying ver tical bars 6 arranged in juxtaposition to the angle beams 3 respectively of the base section, and top and bottom cross bars 7 interconnecting the vertical bars 6 at the upper and lower ends thereof and cooperating therewith to form the movable section of the tower. The vertical bars 6 are preferably of angle iron cross section, while the bottom bars 7 on each side oi the inner sectionare connected to each other by means of diagonal brace rods 8 that intersect each other,

lying ends of the top bars 7 are formed with openings 11 alining with each other and with the opening 10, and the lower end of each vertical bar 6 is formed w1th a pm 12 designed to project through the alining tical legs of right an openings 10 and 11 in the bars of the next lower innermost section so that as the innermost sections are assembled to increase the height of the tower, such sections will be edectivelysecured together. This construction of thebars is clearly illustrated in Fig. 7 of the drawings. The ends of the diagonal brace rods 8 are preferably formed with hooks and are adapted to pass through the openings in the top and bottom bars of the sections below and above the particular section and overlap the corresponding ends of the brace bars of such "bottom and top sections in order to cooperate with the pin and opening construction illustrated in Fig. 7 to hold the inner sections in tower formation and enable such assembled ier sections to be moved as a unit to increase the height of the tower.

Arranged within the base section 2 and adapted for vertical movement therein is a carrier 13 in the form of a rectangular frame and secured to the frame at the corners thereof are roller guide shoes 14 that engage the vertical beams 3 respectivelyof the base section to facilitate the vertical movement of the carrier. This carrier is interposed between'the lower end of the bottom inner section and the base 1 and normally rests upon the base 1 and is adapted for vertical movement to elevate the inner section and move.

.such inner section through the upper end of the base section to a height substantially equal to the length of the base section. has tened to the respective beams 3 of the base section are bearing brackets 15 and pivoted within the bearing brackets 15 are the verar levers 16. The horizontal legs of t ese levers 16 bear against the respective vertical bars 6 of the inner section resting upon the carrier 13 and as the inner section is moved upwardly under the action of the carrier, the er ends otthe horizontal legs of the levers 16 rub over the vertical bars of the inner section. When the inner section reaches the limit of its upward movement within the stationary section under the action of the carrier the horizontal legs of the levers 16 drop beneath ot' the carrier. The carrier may now. be lowered and another section placed in the base section between the previously elevated inner section andthe carrier, and secured to the previously elevated inner section in a manner hereinbefore described. After the securing of the bottom inner section, the carrier is again elevated so that both inner sections are moved upwardly to increase the length of the shaft or tower, the horizontal legs of the levers 16 engaging beneath the lower ends of the bottom inner section when such section has been moved tothe upper end. of the stationary section, thereby permitting the carrier to be again lowagain inserted. Thus, the tower may be I ered so that another inner section may beincreased in height by the addition of more inner sections at the bottom or base of the tower in contradistinction to the top as is now done.

Secured to opposite sides of each inner section 5 are vertical tracks 17 arranged in line with thetracks on the respective sides of the other inner sections and slidably mounted upon these tracks 17 is a frame 18 embodying vertical bars and the top cross bar connected to the vertical bars at the upper ends thereof. Pivotally connected to the vertical bars of the frame 18 and arranged Within such frame is a bucket or cage 19 and secured to opposite sides of the bucketor cage 19 are spring tongues 20 having the ends thereof adjacent to the side bars of the frame 18 formed with outwardly projecting lugs 21 that engage such bars to hold the bucket or cage in normal position and prevent tilting thereof. Secured to opposite sides of the bucket 19 adjacent to the discharge edge of the bucket are outwardly projecting axially alining trurmions'22 and .rotatably' mounted-upon the outer ends of 1 the trunnions 22 are rollers 23.- Secured to the lower end of the top movable section of the tower in line with the discharge end of the bucket or cage and disposed at opposite sides of such section are curved guide channels' 24 having the upper ends formed with vertical guide channels 25. The open sides of the channels confront each other and the lower ends of the curved channels 241 are disposed in line with the rollers 23 on the trunnions 22, while formed integral with the rear side Walls of the vertical channels 25 are curved arms 26, clearly illustrated in Fig. 6 of the drawings. The frame'18 carrying the bucket or cage 19 is capable of vertical sliding movement in the tower or shaft and as the bucket enters the top inner section the rollers 23 ride into the channels 24 and then into the channels 25 and as the rollers enter the channels 2d the arms'26 engage the tongues 20 and swing the latter inwardly against the sides of the bucket so as to relieve the bucket of the holding influence of the lugs 21, thereby permitting the bucket to be swung to dumping position.

I bucket carrying frame 18, and the carrier 13 are, in this form of my invention, under the control of drum and cable mechanism whereby such frames and carrier .may be elevated and lowered. This drum and cable mechanism embodies a horizontal shaft 30 journaled in suitable bearings mounted upon the base 1 and extending across such base and loosely mounted upon the shaft 30 adjacent to the opposite ends thereof are drums'31, 31, 32, 32 and 33. 33: and fixed to the shaft adjacent to each of said drums is a ratchet wheel 34 adapted to be engaged by a pawl 35 carried by the adjacent drum so that such drum may be fixed to the'shaft to rotate therewith when desired. Each drum is also formed with .a ratchet wheel 36 at one edge thereof and codperating with the ratchet wheel 36 is a holding dog 37 whereby the drum may be held in adjusted position succeeding the disconnecting thereof from the shaft 30. Secured to each drum 31, 33 and wrapped thereabout is one end of a cable 38 and the other ends of the cables 38 are trained over sheaves 39 rotatably mounted upon yokes 40 pivotally connected to the respectlve vertical bars of the top innermost section at the upper end'of such section, and then secured to stakes driven in the ground at suitable distances from the tower or shaft. These cables 38 act as guys to reinforce and brace the tower and hold the latter rigid. Secured to each drum 32 and wrapped thereabout is one end i of a cable 41 and the other ends of the cables 41 are trained over sheaves 42 carried by opposite beams 4 of the base section,

under sheaves 43 carried by corresponding beams of the carrier frame 13, and then secured to said beams 4. By means of this construction, it will be seen that when the holding dogs 37 of the drums 31 and 33 are released and the bawls 35 placed. in engagement with the respective ratchet wheels 34. of such drum and the shaft 30 rotated, the guy cables may be loosened and tightened,

while the drums 32 may be revolved, upon the rotation of the shaft 30, to elevate and lower the carrier so that the tower may be built up and taken down.

J ournaled in bearings carried by the base 1 and disposed above the shaft 30 is a short shaft 44 and mounted upon the shaft 44 is a drum 45. Connected to the drum 45 and trained thereabout is one end of a cable 46. The other end of the cable 46 is trained over suitably arranged guide sheaves 47 carried by the upper end of the top inner section and then connected to the hopper carrying frame 27 so that the hopper carrying frame may be elevated and lowered upon the rotation of the drum 45 in one direction or the other. Arranged alongside of the shaft 44 and journaled in bearings carried by the base is, a short shaft 47 and mounted-upon the short shaft 47 is a spur gear 48 and a spur pinion 49 connected to the spur gear 48. The spur gear and pinion 48 and 49 are preferably splined upon the shaft 47 and keyed upon the shaft 44 is a spur pinion 50 adapted to mesh with the 49 is out of engagement with the spur gear 7 51 and the shaft 44 may be rotated when the shaft 47 is revolved.

J ournaled upon a shaft carried by the top barsof the uppermost inners section is a sheave 52 arranged adjacent to the transverse center line of the top inner section, while arranged behind the sheave 52- and in line therewith and carried by the top bars of the uppermost inner section is a shaft carrying a sheave 53, Mounted upon the base 1 is a sheave 54. A cable 55 has one end trained under the sheave 54 and over the sheaves 53 and 52 and then under a sheave 56 carried by the horizontal bar of the bucket carrying frame 18 and is then secured to the top of the uppermost inner sec tion. The other end of this cable 55 is connected to a suitable hoisting drum so that when the, drum is rotated in one direction,

.the bucket or cage carrying drum will be elevated, while when the direction of rota? tion of the drum is reversed, the cage may be lowered.

It will be seen that I have provided an extensible tower which will be found particularly useful during the erection of buildings and the like, whereby mortar, bricks, etc., may be carried from the ground to the top of the structure'in the course of erection wherein the tower may be built up from the bottom to increase the height-ct the tower in order to keep pace with the increased height of'the structure under erection, and wherein the top of the tower will be maintained rigid and prevented from swaying and wherein the guy wires supporting such top may be let out and tightened as the necessity demands. I

I claim:

1. The method of constructing a tower in sections which consists in raising a given section to a suitable height, and adding successive sections in vertical alinement therewith, below the section first named.

E2. The method of constructing a tower which consists in connecting, in vertical manner a suitable height by hoisting apparatus,

placing another tower section beneath the elevated section and securing it to the latter, raising the sections so secured and placing a third section thereunder, and connecting the third section with the second named section. I 1

' In testimony whereof ll afiix my signature.

enonon n. rnrnon.

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