US877587A

US877587A - Skeleton tower.

Info

Publication number: US877587A
Application number: US32705606A
Authority: US
Inventors: La Verne W Noyes
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-07-20
Filing date: 1906-07-20
Publication date: 1908-01-28
Anticipated expiration: 1925-01-28

Description

I PATENTED JAN. '28, 1908. LA VERNE W. NOYES.

. SKELETON TOWER.

APPLICATION FILED JULY 20, 1906.

No. 877,587. I PATENTED JAN. 28, 1908. LA VERNE' W. NOYES.

SKELETON TOWER.

APPLIOATION FILED JULY 20. 1906.

3 SHEETS-SHEET 3.

LA. VERNE W. l\'OYES,

PATEN orrrcn OF CHICAGO, ILLINOIS.

SKELETON TOWER.

Specification of Letters Patent.

Patented Jan. 28, 1908.

Application filecl July 20. 1906. Serial No. 327.056-

To all whom it may concern:

Be it known that I, LA VERNE W. Noyes, a citizen of the United States, residing at Chicago, in'the county of (look and State of Illinois, have invented new and useful Improvements in Skeleton Towers, of which the following is a full, clear, concise and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to electric wire towers, and more particularly to built-up towers of structural iron.

The object of my invention is to provide a tower of this character which will be strong and stable, and which will effectually withstand the strains to which such a tower is subjected.

A further object of my invention is to con-' struct a tower of this character which may be readily'raised, and to this end I preferably construct my tower so that the same may be formed of two'parts, each part being arranged to be raised separately, and after being raised connected to the other part.

A still further object of my-invention is to provide a tower arranged to carry sets of transmission wires, the portion of the tower carrying one set of wires being thoroughly insulated. from that portion carrying the other set of wires.

I have illustrated my invention in the accompanying drawings, in which Figure 1 is a side elevation .of my tower; Fig. 2 is a detail of the manner of-securing the bracing rods of my tower; Fig. 3 is'another side elevation of my tower,'showing a view at right angles to Fig. 1; Fig. 4 is a detail of one of the lates used for connecting the two sections 6 tower'together; Fig. 5is a detail'sectional view showing the manner of insulating the sections of the tower;- and Fig. 6 is a sectional view taken on the line 66 of'Fig. 3.

As appears from the drawings, the particular skeleton tower which I have illustrated for the purpose of disclosing my invention,

consists of a pair of upright arms or end frames designated as a whole by 1, 1., each constructed to form a rigid and unyielding structure as hereinafter set forth in detail.

The end pieces or frames of the tower are triangular in shape as shown in Fig. 1, and

are formed of two converging

posts

3, 3, the

lower ends of which form the supporting legs 2, 2, While theupper ends, being mechanictops of the arms or

end frames

1, 1. I prefer to unite these upper extremities as illustrated, wherein the angle bars comprising the

posts

3, 3, have their opposed flanges dovetailed to securely fit together, the same being bound together by means of clamps 4. Extending from a point near the middle of each post 3 to a point near the bottom of the opposite post, are bracing posts 5, 5, which are preferably secured together by means of a suitable connection 6 at their intersection. These posts 5, 5, are braced to the upright posts 3 by means of lateral bars 7, extending perpendicularly to a line bisecting the angle between the posts 5 and 3, as shown in Fig. 1, and are thus of the shortest possible length to extend between the two posts, and occupy positions wherein they impart maximum strength to the structure. The uppermost of these lateral bars 7, are secured-to the connection 6 at the point of interscctionof the bracing posts 5, 5, as clearly shown in Fig. 1. The rods 8, extend between the lateral bars 7, to secure the tie members of the structure together. The lateral bars 7, are preferably angle rods and the tie rods preferably secured thereto, as indicated in Fig. 2, with reference to bar 10 and tie rodv 1 1 wherein the enlarged head onthe tie rod is shown as fitting into a key hole slot in the bar.

a A transverse bar 9 extends between the

posts

3, 3, near the middle, and transverse bars 10 extend between the

posts

3,3, on the upper section thereof. The longer of these 'transverse bars 10 are .secured together by means of tie rods 11. The bracing posts and bars, of beams, are preferably made of angle iron, and the posts are disposed so that the same may rest in flat contact without the necessity of cuttin away the flanges. The ends of the longer bracing post or beams are preferably formed of double thickness by flattening the flanges so that they will rest in parallel ,position. The upper ends of the

posts

3, 3, are also connectedby bracing bars to this portion of the tower. It will of course be understood that while I have described the particular bracing means and other parts of the tower specifically with reference to the structure I have illustrated for 12, as illustrated, to give additional strength ally united in any suitable manner, form the

posts

12, 13, 13 converging at a gether.

disclosing my invention, other arrangements and modifications may be used. without departing from the spirit of my invention.

The structure above described consists of a triangular frame which may be termed'the end frame, and there aretwo of these end frames, oneat'eachend of the tower, occupying parallel positions. To each' end frame is secured a pyramidal frame comprising a post or leg 12, secured to the top of the end frame and two posts 13 connected at their lower end to the bottom of the posts 3, the three point 15 intermediate of the ends of the frame, as clearly shown in Figs. 1, 4 and 6. A plate 16 secures the convergin ends of'the posts to- It will thus Tie seen that each section of the tower presents a side view triangularin shape, as clearly shown in Fig. 3, with the common point of convergence-15 as the apex. Also, each section presents a triangular shape when viewed from above, as clearly shown in Fig. 6, with the point of convergence 15, as before, as the apex.. Therefore, the two sections converge at a common point, as contradistinguished from meeting in a common line, such as is the case in prior structures where a top view similar to that of Fig. 6 would show the two triangles meeting in a line and not converging at a point.

The construction of the connecting plates is shown in Figs. 4 and 5, wherein is illustrated a late, having an anglesocket 16 in which is olted the lower end of the post 12, and two diverging angle sockets 16 in which are bolted the upper converging ends of the posts 13. The sockets are inclined from the vertical to accommodate the inclination of the various posts attached thereto, and the center of the plate is formed substantially flat to provide a portion in which the bolts, for connecting the sections of the tower, may be secured. Whenthe two sections of the tower are raised, the two plates 16 are opposite one another, andto connect the sections of the tower, and at the same time insulate the two sections from one another, a block of insulating material 16 having embedded therein oppositely disposed bolts 16*, is placed between the plates and the bolts secured thereto. It is obvious that, if desired, the block of insulating material may be dispensed with and the plates connected directly together by means of bolts. However, as the two arms or end frames 1 of the tower are under certain conditions arranged to carry two sets of wires, each'set having wires of different potential, it is (18'? sired to insulate the two sections and I have stresses in cases where the tower is imper-' fectly grounded. With the tower-structure under static stress, it would be unsafe for a man to attempt to climb it for the repair of damage to one'circuit when the other circuit is alive, unless the halves or sections carrying the circuit-wires were separated from each other by insulation. Of course, if the tower is perfectly grounded, there will be no induced static stresses in it. grounding of the tower is not perfect (and this is likely to occur), the insulator between the two halves of the tower would greatly reduce the static effect on the side of the tower on which the circuit is not in operation, thus rendering it more safe for the workman to repair this circuit with the other-circuit enerized.

But, where the While I have shown and described a means for insulating the specific sections of towers described, I do not wish to be limited thereto as I may insulate sections of towers having various constructions without departing from have illustrated, comprises two triangulan' end frames having pyramidal bracing frames, which, when the two portions of the tower are joined together, form (see Fig. 1),, two upwardly extending three-post arms (the three posts being 3,3, 12,) and four downwardly extending three-post legs the three posts being 3, 13, 5. These legs diverge while the longitudinal members of each leg converge toward the lower ends.

For connecting the various wires to the tower, cross arms 21, having insulating pins 22 mounted thereon, are secured at suitable intervals to the upright arms or end frames 1 of the towers. Vertically extending arms 23, to which the ground wires may be connected, are secured between the converging ends of the

posts

3 and 12. It will thus be seen that the inner insulating pins are arranged on the said posts at points intermediate the outer pins. By means of this staggered position of the pins I provide the greatest dlstance between them, and there-' fore between. the wires of different potential that may be carried by said pins.

While I have described my invention as being constructed particularly for use in supporting transmission lines, it will be understood that there are various other .uses to which the tower may be put.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A tower having a pair of upright end framesof triangular form and a pair of bracing framespyramidal in form. I

2. A tower composed of two sections, each having an upright end frame of triangular form and a bracing frame pyramidal in form, said sections being connected at the apices of said pyramidal bracing frames.

3. A tower having a pair of triangular upright end frames of. structural iron, comprising converging posts suitably braced, and

bracing frames comprising posts fastened to each end of the triangular frames and converging at one point,

4. A tower having'a pair of upwardly extending three post supporting arms and four downwardly extending three post legs. 5. A tower having a pair of upwardly extending three post supporting arms and four downwardly extending laterally diverging legs.

6. A tower having a plurality of downwardly extending three post legs, the post of each leg converging toward the lower ends, and each leg having a post converging to wards and'connected to a post of each of the remaining legs.

7. A tower comprising a pair of triangular upright end frames and diagonal bracing posts for each frame converging at a common point.

8. A tower comprising two triangular end frames and angularly extending members cooperating therewithtto form a plurality of upwardly extending triangular pyramidal arms.

9. A skeleton tower comprising two triangular end frames and angular members cooperati-ng therewith to form two upwardly extending triangular pyramidal arms and four rlownwardly extending triangular pyramidal egs.

10. In a tower structure, a pair of sections having end frames, converging posts secured to each frame, means for connecting together the free ends of the posts of each frame, and separate means for connecting the sections together at the points of convergence.

11. In a tower structure, a pair of sections having end frames, three converging posts secured-to each frame, means for connecting together the'free ends of the'posts of each frame, and separate means for connecting the sections together at the points of convergence. I

12. A tower composed of two sections having means for insulating said sections from each other.

13. In a tower structure, a pair of sections havin end frames, converging posts secured to'eac frame, means for connecting together the free ends of the posts of each frame, and separate insulating means for connecting the sections together at the points of convergence.

14. A tower composed of two sections detachably connectedand insulated from each other.

15. In a tower structure, a pair of sections, each formed of a pyramidal arm and two pyramidal legs, said arms and legs of each section having converging portions connected together, and separate means for connecting the sections together at the points of convergence.

' 16. A tower composed of two sections insulated from each other, and each formed of a pyramidal arm and two pyramidal legs.

17. A tower composed of two sections converging at a common point and connected together at the point of convergence.

18. A tower composed oftwo sections converging at a common point and detachably connected together at the point of convergence.

19. A tower composed of two sections contogether at the point of convergence, said sections being insulated from each other.

20. A tower composed of two sections, each having an upright end frame of triangular form, and bracing of pyramidal form, said sections being insulated from each other and connected at the apiccs of the pyramidal bracing frames.

' 21. A towcr having a pair of upright end frames, triangular in form and comprising two converging posts and a pair of bracing frames pyramidal in form and each comprising three converging posts, said posts being connected at their point of intersection to a of said-posts and said plates forming a means for connecting the two sections of the tower together.

22. A tower having a pair of upright end frames, triangular in form and comprising two converging posts anda pair of bracing frames pyramidal in form and eachcomprising three converging posts, said posts being connected at their point of intersection to a plate having sockets conforming to the shape of said posts and said plates forming a means together, and-having a block of insulation interposed between the plates of each section.

23. A tower having a plurality of posts arranged to carry electrical conductors, and means for insulating said posts from one an other.

24. A tower composed of a plurality of section's, each, section having a base for carrying electrical conductors, and means for insulating said sections from one another.

25. A tower formed of two sections, each verging ata common-point and connected plate having sockets conforming to the shape I for connecting the two sections of the tower section having a base arranged to carry one inner insulating pins, the inner insulating or more electrical conductors, and means for pins being arranged on the tower at a point, insulating said sections from one another. intermediate of the outer pins. 26. A tower having a plurality of posts, In witness whereof, I have hereunto sub- 5 each post carrying a plurality of insulator scribed my name in the presence of two wit- 15 pins, said pins being arranged in a staggered nesses.

position upon said posts to provide the great LA VERNE W. NOYES; est distance between the pins. I Witnesses:

27. A tower having a plurality of posts, D. R. SOHOLES,

10 each post having arranged thereon outer andl L. C. WALKER.