US1127369A - Apparatus for building circular walls and means for adjusting the apparatus. - Google Patents

Description

A. Q. NASH.

APPARATUS FOR BUILDING CIRCULAR WALLS AND MEANS FOR ADJUSTING THE APPARATUS. APPLICATION FILED APR. 25, 1914.

1,127,369. Patented Feb. 2, 1915.

2 SHEETS-SHEET 1 2s 2 ze 24u 22 A. Q. NASH, APPARATUS FOR BUILDING CIRCULAR WALLS AND MEANS POR ADISTIIIG THE APPARATUS. APPLICATION FILED APR. 25. 1914.

' 1,127,369. www@ Feb 2, 1915,

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LEXANDEB Q. NASH, 0F BELTDN, TEXAS.

APPARTUS EUR BILDING CEBCLAH WALLS ANB MEANS FR ADJUSTING- THE APPKRATUS.

llpeclcation of Letters atent.

Messes.

rasantes rieb. 2,1915.

Application nled .lipril 25, 1911.1. .Serial No. e.

To all whom may concern.'

Be it known that I, ALEXANDER Q. NASH, a citizen of theUnited States, residing at Belton, in the county of Bell and State ot T exas, have invented certain new and useful Improvements in Apparatus for Building Circular Walls and Means for Adjusting the Apparatus, of which the following is a specification.

My invention relates to scali'old adjusting apparatus, and particularly to means :for elevating and lowering scafolds for building circular Walls for silos, circular tanks, smoke stacks, and similar circular walls, and the object is to provide means for moving easily a scaffold as a Wall is built up and for holding the scalold rigid while being nioved and when located at any desirable height and for strutting the scaffold against the portion of the wall which is completed and for raising or elevating the forms used in building the Walls and for truing the forins to a. true or correct circle so that the wall will be perfectly cylindrical and iigidand plumb throughout its length and to ina-ke the scaffold perfectly safe and rigid so that .workmen will not be disturbed by a shaking structure. K

Another object is to provide a scaffold with extensible arms so that a scaffold can be suspended on the outside of the Wall. Une advantage is that the scaffold. is adjustable or extensible so the scaffold can be rigidly braced in different sizes of structures.

Other objects and advantages will be fully explained in the following description and the invention will be more particularly pointed out in the claims.

Reference is had to the accompanying drawings which forni a part of this application.

Figure l is an elevation of the apparatus with one half of the scaii'old removed, show ing the holding castings in section. Fig. 2 is a plan view of the lower part of a scadold, showing the relative arrangement of the scaii'old to the wall which is being built. Fig. 3 is a detail view of the lower connection of the derricl to the central mast. lTig.v

l is a plan view of the saine. Fig. is a detail view .of the lock for the hoisting cable. VFig. G is a detail view'of a hoisting and dumping bucket. Fig. 7 is another sidel eleva-tion ot the hoisting and dumping bucket, showing the device for locking the bucket against tilting. Fig. 8 is a detail i.

view of tlielovver connection of theA scaffold with the central mast. view ofthe upper connection of the scaffold with-the central mast.. Fig. 1.0 is a detail.

view of the upper connection of the ,derrick Fig. 9 is a detail to indicate Vthe same ,parts throughout the several views.

`'lhe drawings show a portion of a circular wall l which is being built, and portions 2 of the forms which are used for building the wall. A. centra-lmast 3 is set on a suitable base Il at the center of-the circle of the `Wall. The scad'oldis built on an upper casting 5 and a lower casting 6. Each casting has a plurality of grooves 7 radially arranged and has a central opening 8 for the mast. Aoplurality nt radial arms 9 are mounted. in the .grooves 7. A plurality of radial arms 10 are mounted in similar grooves in casing 5. T-pipes 11 are mounted on the outer ends oir' the arms 9 and 10. '.ihearnis 9 and 10 are referably made of pipe. The outer ends or the pipes 9 `and- 10 are provided with vertical braces 12 which are screwed into the T-pipes 11 and the arnis 9 and 10 are further braced by .the diagonal braces 13, thus lorrning a truss of the upper and the lower arm. The lbraces 12 and 13 aiepreferably made of pipe. The object is to make the scabld as light as possible. The arms 9 and 10 may be provided vvithsleeves 14 for makingvthe arms 4 longer or shorter. -The braces I3 may be provided with sleeves 15 for adjustment of the braces. At their upper ends the braces 13 are bolted to the arms 10 near the T- pipes l1 and at their lower ends they are`4 bolted to the inner ends of the arms Bend the`bolts 16 extend through the casting 6. The inner ends of the arnis 9 .arev bolted t0 the casting 5 by bolts .17., through holes 17 The hubsor castings 5l and are spaced, apart by braces, consisting of pipes 18 spacing the castings apart and rods 19 which run through the pipes 18 andthrough the openings 20 in the casings. The rods 19 have heads on 4one endandniits21 en the i rods by hooks 28. See Fig. 13.

A the same on the mast by bolts 39.

other` ends. Boards 22 may be placed on the arms 9 and l0 to form platforms. The

`arms 9 and '10 are adjusted to the wall 1 and to ther forms 2 by adjusting struts 23 which are threaded and provided with nuts 24. 'To tighten thestruts against th'e wall or forms, turn the nuts 24 which will bear against the ends of the rods 9 and 10 and ,push the struts out against the ,walll 1 and the .forms 2. For forming a scaffold on the outside of the wall, the struts 23 may be replaced by rods 25 which are screwed or telescoped into the arms 10. Cables or rods 26 are connected to the rods 25 and ex.

can be placed in the endsof all the pipes 1,0 Y if necessary.`A The rods 25 are particularlyt adapted for raising the forms 2 when a section of the Wall has been inished. The forms 2 are. elevated to form a new-section of Wall. The forms 2 are connected to the The scaffold within the wall is elevated by differential hoists 29. Eyes 30 are formed in the heads of the rods 19 and 4hooks 31 are caught in the eyes 30, the hooks' 31 having a swivel connection with the hoists 29. hooks 32 and the connection is made with the mast3 by means of a clevis 33 which extends on the sides of the mast and a bolt .runs through the mast and through the "f."-'.c levis.` A plurality of holes 35 are made 1n the mast so that thebolt 34 may be set at any desirable height. .The clevis 33 and bolt 34 may be fixed at any desirable height and when the forms 2 have been elevated drawing the scaffold upwardly far as possible by means of the differentialhoist, the clevis and bolt may be set at a higher point and the operation of elevating the scaffold repeated as often as desired. The same holes 35 may be used to hold the scaffold when drawnto a desired position.

' A bolt 36 may be inserted in one of the holes 35 4under the scaffold so that the scaii'old Willbe supported on the bolt 36. l

The same mast 3 is used to elevate the concrete or other material for building the wall. A derrick is mounted on the mast and is adjustable thereon. Collars 37 and 38 are mounted on and secured thereon by 1naking the collars in two parts and clanipinglP ha@ collar has an extension 40, and each extension has a curved cavity therein. The lower collar supports an arm 41 of the derrick. The arm 41 rests in the cavity in the extension 40. A rod 42 rests in the upper eXtension and is screwed into a T-pipe 43'. The rod'42` and the arm 41 are held in the'supporting extensions 40 by a rod 44 and the The hoists are provided withy lower end. A pulley hanger 49 for a p lley 50 is supported in the eye 47. The derrick is further braced by a rod 48 which is screwed into the T-pipe 43 and into a T-pipe 51. rI'he outer end of the derrick arm 41 is supported by a rod' 52 which is provided with a turn-buckle 53 and the upper end of the rod 52 isl secured in the T-pipe 43 by' a bolt 55. The lower-gend of the rod 52 is connected to the arm 41 by a bent rod 54. The arm 41 is preferably made of pipe and the end of the rod 54 is threaded and a nut 56 is screwed on the rod 54 and bears against the end of the pipe arm 41. The nut 56 can be used for adjusting the rod 52. The material is delivered by a dumping bucket 57 and a cabler58 attached thereto. The cable 58 runs over a'pulley 59 which is j ournaled in a carriage 60. The carriage 60 runs on the arm 41 by means of two antifriction pulleys 61 which are ljournaled in the car'- riage 60. The cable 58 runs over the pulley 50 and down by the mast 3 and over a pulley 62 which is secured to the mast 3 at the bottom thereof and then out of the wall tosome power for operatingthe cable. The carriage 60 is held stationary by a pin 63 which is inserted through the arm 41 while the. bucket 57 is being elevated. When the bucket reaches the desired height, .the pin 63 may be removed and so that the carriage 60 may be brought to a position over the forms for dumping the contents of the bucket in the forms 2. vThe bucket 57 may be locked stationary at any height desired. A pipe 64 is made rigid with the carriagel 60 and a dog'65 is pivotally connected with a bracket 66 which is attached to the pipe 64. A slot iscut in the pipe 64 and as the cable 58 moves through the pipe 64 the dog 65 may be made to engagey the cable and bind the same in the pipe 64. A suitable cord 67 may be connected to the handle of the dog and extended to ,a suitable position for operating the dog. The mast 3 may be braced by suitable guy rods 68. ltvwill be noticed that the forms 2 are in sections divided both horizontally and.ver tically. These sections are from two and a half to three feet deep. Several sections may be used in a day as they are simply placed one above the other and secured by suitable bolts. As soon as the wall adjacent to the lowest section is cured or dried the lowestsection is removed and placed on top of the upper form, and this can be done without interfering with the building of the wall. The truing of the forms is. accomplished` by strutting the scaffold to a fixed position. The struts 23 of the lowerlmema ber or platform are first strutted against the finished wall 1. This will retain the scaffold as a whole rigidly in a xed position rew gardless of the mast because each pair of :ii-ins, the one above and the one below, is f'orii'ied into a truss which is rigid. This 'having been done, the forms 2 are then adjusted to true or plumb position relative to the lower member of the seaifold which have already been adjusted to the completed Wall. The upper struts 23 are used toy adjust the forms 2 without relation to the mast 3 which is used merely to support the scaffold and striitting the wall-making forms from said f "ca 'lold,

Q. A circular wall building apparatus comprising a central mast, a scaffold mov.

able vertically on said mast and provided with radial arms, means for moving said scaflold vertically, means for forming a vertical truss of each ail-in, means for strutting said arms against the circular wall and means for adjusting the forms relative to' said trusses for making the wall.

A circular wall construction apparatus comprising a central mast, a scaffold movable vertically on said mast and consisting of upper and lower members engaging said mast :ind radial arms secured to said members, means for moving said scaffold vertically on said mast, means for strutting the lower member of said scaffold against the wall, and means 'for adjusting the forms to the upper member of the scaffold for liolding'and truing the forms.

'l.. A circular wall construction apparatus comprising a central mast, a scaffold movable vertically on said mast and consisting` of upper and lower circular members, meansfor spacing said members apart and means foiholding said members at a iXed relation to each other, radial arms'in pairs secured to said members, means for forming a truss of an upper and a lower arm, means for strutting said arms against the circular Wall and means for adjusting the forms to be lsupported against the upper arm for making thel wall, and means for moving said scaffold vertically on said mast.

5. A wall construction apparatus vcoinprising a central mast, a scaffold movable vertically on said mast and consisting of upper and lower members, a casting for each member having a central opening for said mast, and having radial slots therein, means for spacing said castings fixedly apart, radial arms secured to said casting in said slots, mean forming a vertical truss of an upper and a lower arm, and adjustable meanscarried by said arms for strutting the lower member of the scaffold to the Wall and for adjusting moldin forms to the upper member of said sca old and plumbing said forms relatively to the completed portion of the wall.

6. A wall construction apparatus comprising a central mast, a scaffold movable vertically on ,said mast and provided .with upper and lower radial arms, means for moving said scaffold vertically on said mast, means adapted to strut said lower arms against the'ivall, and means )for adjusting the forms for making the wall to said upper arms for holding said forms plumb relative to said wall. p

7. A circular Wall construction apparatus comprising a eentralmast, a scaffold movable vertically on said mast, means f or adjusting said scaffold against the circular wall for bracing and truing purposes, means for adj listing the forms for making the wall to said scaffold for bracing theform against the scaffold and plumbing the form relative to said Wall, a derrick carried by said mast, and means carried by said derrick for delivering material into said forms.

In testimony whereof, I set my hand 1n the presence of two witnesses, this 21st day of April, 1914.

ALEXANDER Q. NASH. Witnesses A. L. JACKSON, W. P. TINSLEY.

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