US1554658A - Steel form for and method of enveloping with concrete pipe lines and the like - Google Patents

Description

3 sheets-sheet 2 NG WITH PIPE LNES AND THE LIKE Filed March 19 r 1924 J. T. RICE AND METHOD OF ENVELOPI o o o o/o oo o o o o o o o o o o o c o o o o o o o o o STEEL FORM FOR sept. 22,'-1925 M a 1 (h-7&7

ATTORNEYJ Patented Sept. 22, 1925.

UNITED PATENT (3F-FICE.

Jessen '.1. mon, kor KI-NGSTQN, YORK.

STEEL noni/L fron AND Marston ,or nnvnnolrre WITH CONCRETE PIPE LINES Ann LIKE.

Application led March 1 9, 1924. Serial N o. 700,226.

To all whom t may concern:

Be it known that Ll, JOSEPH "'l. RIGF., a citizen of the United lStates, and .resident of the city of Kingston, in .the county of Ulster and Sta-te of 'New "York, have vinvented certain new vand useful Improvements in Steel Forms for and Methods vrof Enveloping with vConcrete Pipe Lines and the like, .of which `the following is a specication.

My invention relates to steel forms rand the method of applying them, to coat with concrete steel pipes and other ,curved f surfaces.

In preparing forms for coverings for riveted steel ,pipe lines and other curved sur* faces, the present .practice is to use wooden forms or a unitary steel form. As to wood, lthe present practice is to prepare, ifit and 'brace the forms as the work progresses and zu the form and bracingarelbroken down after the cement lhas set. This fhas 'been very eX- pensive, both 'in labor and material. 'In connection with steel forms, they have been of unitary character and so fheavyas to require 2f) the use of steam cranes to remove the forms, thereby necessitating the flaying of the tracks on which the .crane can work, or resetting the crane from time 'to time as the Work progresses.

'By my invention, I provide .steel gforms that are readily installed and removable, and capable of continuous and progressive re-.use andbeing .sectional in character, can be made of any length that the particular job shows 4is c lesirabl'e.

Another object of my invention is to obviate the destruction and refabrication y of these forms on reuse Another object of my invention is to .ob-

f1@ viate the use of complicated bracings'to support the forms while .the conc-nete is being set.

Another objectof my invention is to `provide means to secure a minimum, predetermined space between the exterior surface of the pipe line and the outermost ,surface of the forms, 4in which space grout, cement or concrete may be poured to form `the `coverilis 0f the Pin@ lne- Another object of my invention is to so construct and arrange said forms that they maybe readily assembled and disassembled by manual ,labor with a minimum expendil ture of labor and materials.

tnotherobject 0f my invention is t0 Previde forms for a concrete envelope 4-fo'r `steel 1pipes and other .curved surfaces, this ,coinplete envelope being in 'Contact at all points with the outer surface of the pipe line, preserves the pipe linegby keeping it `from rusting. By having the envelope yof a'predeter- Fig. 8 :is a cross-section `slmwingthe loc'king pin `or dog.

Fig. 4 is a cross-section of Sthe line af-a Fig u5 Iis a top View of the pipe line and sections.

5F ig. Gis a detail showing the cradles.

Fig. 7 shows "thearch `v Fig. l8 .shows an Aarch plate Fig. "9 is la `section thereof. i i

Fig. -10 `shows 'the base plate and Fig. 1 11 is a section thereof.

In the drawings, the riveted steel pipe line l, is to 'be coated yor enveloped with a concrete coating 2. While the drawings show a steel pipe line l, it is `obvious that 'my -invention Ybe employed -lin [coating or -enveloping with concrete the outside of a 4curved tunnel or other continuous curved surfaces. o t o The 'form consists vof lstra`i-grl1`tibase pilates "having angle lironsfS 'andafi'ller 9 with rivets 1'0 to fasten together the vangle irons, fillers, and, baseA plates to .fform a grooue Kin 'which Athe side lplates 'may 'be inserted. )The plates v5 ghave footingsll riveted to thebase '.Iiilatles with the rivets 12% more Particularly Shown in Fiss- 10 and 1.1

The arch plates7, are lconcave and have filler 1 2 and angle ironhsl` riveted to lthe plates to form grooves into which the neXt fnlate ,may be inserted, mere. fully Shown in 8 .and 9. side plates '6, though straight, employ the groove construction of the 'afee Plates .S0 that arcfhinletes and .Side pilates .may .ft together by .a tonele and islooreeonneefenf The arch ribs 1 4 are of angle 4 iron and are .eenteured Se es te f@110W for a minimum predetermined .Space 'between the Outer Periphery of the pipe line 1 and the innermost surface of the plates, to provide for the minimum thickness of the concrete envelope. Two of these arch ribs 4 are fastened endtoend by bolts 15 and plates 15, or other fastening means and are hung over the spacing blocks 16.

As shown more particularly in. Fig. 3 the plates are fastened to the arch ribs 4 by locking pins or dogs 17 that fit around the arch ribs 4 and are driven into the holes 18 in angle iron 8. If the dogs do not fit tight enough against the arch ribs, ordinary wedges 3l may be driven in between the dogs and arch ribs. The angle irons on the Vplates are not the full-length of the plates in order to provide space at the center and ends thereof for the arch ribs 4 as indicated at 19.

If found necessary, additional bracing may be employed by placing an ordinary wooden beam between the bank and the plates as indicated at 28 in Fig. 1 or a beam may be placed longitudinally along the plates as indicated at 29 and braces 30 at right angles thereto at intervals against said Y beam and against the bank.

To keep the plates from being forced out of the grooves in the underneath plates by pressure of the concrete against the plates, I employ tie rods 2O as a reinforcing or stiffening means. This tie rod is slightly bent at one end 21, to fit into the hole '22, in one of the flanges of the angle iron. The other end 23` is in the form of a wedge shape hook and being driven or wedged onto-a flange of the angle iron of the plate below causes the plates to be locked in vertical alignment. f

I employ a bulkhead form 24 which form is divided into four parts, bolted together, and the inner edge completely encircles the outer circumference of the pipe line'l. The outer edge of this bulkhead form 24 is in alignment with the outer edge of the arch ribs 4. The bottom edge yof the bulkhead form 24 is in alignment with ythe bottom edge of the cradle 3.

Said bulkhead form 24-is fastened on one side by the arch-rib 4 by means of clamps 25, more particularly shown in Fig. 4. On the other side it is held fast by collar 26 which ts around the pipe line 1, being tensioned there-against by the screw bolts 27.

In practice, the cradles 3 are first laid spaced apart, as indicated in Fig. 6. These cradles cannot becontinuous, because the pipes are on the job in about 15 ft. lengths and must be riveted together. In order to rivet the pipes there must be space around the circumference of the pipe for a workman to use a bucking-up hammer on the outside of the pipe, in the riveting operation.

The pipes then are riveted together in a continuous pipe line and the water put therethrough under the usual pressure. Grout is then placed on the cradles shortly before the concrete envelope is to be put on.

Then the lowermost plates 5 are set on both sides of the pipe line for the distance that the forms are to be used, it being understood that these forms are sectional in character and any length of form may be employed.

The spacing blocks 16 are placed on top of the pipe line 1 at intervals of'around seven and one-half feet in the case of a pipe line the inside diameter lof which is eight feet ten inches. These arch ribs 4 hang loosely from the spacing blocks 16 and lower spacing blocks are employed as shown at 16a, Fig. 1. The base plates 5 are then clamped to the arch ribs 4 by means of dogs 17. The concrete is then put in and tamped under the bottom of the pipe lines to form with the cradles 8 a continuous base for the pipe line 1. The side plates 6 are then inserted into the grooves of the base plates 5, said side plates are locked to the arch ribs 4 by means of the dogs 17 and are stiffened and heldy into contact with the grooves in the base plates 5, by means ofv the tie rods 20. The concrete then is likewise poured. |Ihe same procedurev is followed with regard to the side plates 6 and the arch plates 7. In the form shown in Fig. 1 two lengths of concave arch plates 7 are employed on each side of the pipe line l, leaving a space on top for which there are no plates.

IVhere the pipe line takes a quick bend, it is necessary to remove a portion of the iange as indicated at 30, Fig. 10, similar portions being removed on the upper plates to permit the plates to telescope in order to obtain the change of direction.

The space at the top has the concrete set on without the use of forms which are not needed at that place. This space without plates is shown in Fig. 5.

In pouring the concrete, as heretofore described, the spacing blocks 16 and 16a are removed just before the concrete reaches them, the concrete taking the place of the spacing block.

IVhere the concrete is put in at the end of a length of forlms, the concrete would exude therefrom, if the bulkhead form 24 were not employed, so at the end of the series of forms as set up, the bulkhead form is placed, by being fastenedy to the arch rib 4 by means of clamps 25 and held in contact on the other side by means of the ring or collar 26. After llO the concrete is set the plates, arch ribs, bulkhead form and other parts are removed and set up on the next section of the pipe line to be eneveloped and the process of putting on the concrete repeated as here outlined.

By this method steel forms are made standard, are easily applied and may be used again and again, without refabrication and `Letztere going specification khas gone into details as to the dimensions of the forms having an inside diameter of eight feet ten inches. Such dimensions may vary Linder different conditions, and I do not limit myself to the dimensions herein set forth.

It will thus be seen that there is herein described apparatus in which the several features of this invention are embodied, and which apparatus in its action attains the various objects of the invention and is well suited to meet the requirements of practical use.

As many changes could be made in the above construction, and many apparently widely dierent embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above ldescription or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim:

l. In forms for enveloping with concrete pipe lines and the like, base, side and arch plates, means for connecting the contiguous edges of said plates, arch ribs supporting said side and arch plates, and means to space the inside periphery of the plates a minimum predetermined distance from the outerl periphery of the pipe line.

2. In forms for enveloping with concrete pipe lines and the like, base, side and arch plates, tongue and groove connections between the edges of said plates, arch ribs supporting said plates a minimum predetermined distance from the outer periphery of the pipe line.

3. .In forms for enveloping with concrete pipe lines and the like, base, side and concave arch plates, said side and arch plates being supported by the arch ribs, all said pla-tes being connected together by tongue and grooves, reinforcing means to prevent the tongues from escaping from the grooves when said forms are filled with concrete, means for fastening said arch ribs to said base plates, means for fastening said side and arch plates to said arch ribs, and spacing means interposed between the inner periphery of the arch ribs and the outer periphery of the pipe line.

' 4E. In forms for enveloping with concrete pipe lines and the like, standard base, side and arch plates, means for connecting the contiguous edges of said plates, standard arch ribs,,demountablyfastened, and means to `space the `inside `periphery 'of Ithe arch `ribs a predetermined distai'ice Afrom :the `ou t er periphery of `the pipe line, ,all of said parts interchangeable and capable of 're-use fdr their respective purposes.

' 5. In forms for enveloping with :concrete pipe llines Aand Vthe like, base, side Iand arch plates, demountably fastened, arch ribs, supporting said side Aand arch plates, means to space the inside periphery of the plates a minimum predetermined distance from the outer periphery of the pipe line, together with bulkhead forms encircling a pipe and demountable means for holding said bulkhead forms rigid.

6. In forms for enveloping with concrete pipe lines and the like, longitudinal base, side and arch plates, tongue and groove connections between the edges of said plates, arch ribs supporting said plates, means to space the inside periphery of the plates a minimum predetermined distance from thel outer periphery ofthe pipe line, together with bulkhead forms encircling a pipe and demountable means for holding said bulkhead form rigid.

7. In forms for enveloping with concrete, pipe lines and the like, base, side and concave arch plates', said side and arch plates being supported by the arch ribs, said plates being connected together by standard connecting means, auxiliary reinforcing means to prevent the plates from separating when said forms are filled with concrete, means for fastening said side and arch plates to said arch ribs, spacing means interposed between the inner periphery of the arch ribs and the outer periphery of the pipe line together with bulkhead forms encircling a pipe and demountable means for holding said bulkhead form rigid,

8. In forms for enveloping with concrete pipe lines and the like, standard base, side and arch plates, demountably fastened, standard arch ribs demountably fastened, means to space the. inside periphery of the arch ribs a predetermined distance from the outer periphery of the pipe line, together with bulkhead forms encircling a pipe and demountable means for holding said bulkhead forms rigid.

9. In forms for enveloping with concrete pipe lines and the like, in combination with a series of longitudinal fo-rms, demountable bulkhead forms, said bulkhead forms on the inner edge encircling the pipe line, and being held rigid on one side by a demountable collar encircling the pipe line and on the other by being fastened by clamping pins to arch ribs, the outer edge of said bulkhead forms being in alignment with the arch ribs at the top and sides and at the bottom in alignment with the bottom edge of a cradle.

10. In forms for enveloping with concrete pipe lines and the like, base, side and concave arch plates, said side and arch plates being supported by the arch ribs, all said plates being connected together by tongue and grooves, reinforcing means to prevent the tongues from escaping from the grooves when said forms are filled with concrete, means` for fastening said arch ribs to said 10 base plates, means for fastening said side and arch plates to said arch ribs, and auX- iliary bracing ineans from the bank to the plates, and ineans interposed between the inner periphery of the ,arch ribs and the outer periphery of the pipe line.

Signed at New York in the county of New York and State of New York this 17th day of March A. D. 192i.

JOSEPH T. RICE.

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