US540691A - William t - Google Patents

Description

(No Model.)

W. T. RUETE.

APPARATUS FOR LINING TUBES.

No. 540,691. Patgnt ed June 11, 1 895.

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- "ma NDRRIS mans ca, Pnmau'mo" wnsnma'ron o c NITED ST TES- WILLIAM' T RUE TE,

"ATENT OFFICE.

OF NEW YORK, Y.

APPARATUS FOR LINING TUBES.

SPECIFICATION forming part of Letters Patent No. 540,691, dated June 11, 1895.

' Application filed February 26,1895. Serial No. 539.793. (No model.)

To all whom it; may concern.-

Be it known that I, WILLIAM T. Hours, a citizen of the United States, and a resident of the city of New York, in the State of New York, have invented a new and useful Improvement in Apparatus for Lining Tubing, of which the following is a full and accurate description. V

The apparatus covered bythe present invention is designed for the ready introduction into a piece of tubing of strips of paper or other material which is to serve as a lining and the adjustment of the same in contact with the interior surface of the pipe; the apparatus shown being specially adapted for the manufactureof the lined tubing which forms the subject of Letters Patent No. 535,998, issued to me March 19, 1895.

The invention is illustrated in the accompanying drawings, in which 7 Figure 1 is a side elevation, and Fig. 2 a:

plan, of the apparatus as a whole. Figs. 3 and 4 are enlarged-sectional views of portions of the same; and Figs. 5, 6, 7, and 8 are views in cross-section on the lines 1 1,2 2, 3 8, and 4 4, respectively. 1

Referring to Figs. 1 and 2, A is a table upon which are mounted rests, B B, for supporting the piece of tubing, 0, which is to be lined, the tubing being temporarily secured in the rests by any suitable clamping device, as D. In front of these rests, mounted upon a suitable support upon the same table and in line with the rests, are arranged the guides E Ef, through which the lining strips pass as they approach thetubing. In the present case two of these guides are'shown; but more may be used if it be desired to multiply the number of plies of the lining, or, where a single ply is deemed sufficient, only one guide need be used. The shape of these guides is such that the strips, entering them in substantially a flat form, are gradually curved up into a tubular form as they pass through the guides.

- The method here shown of drawing the strips through the guides and passing them thence into the tubing is by the use of a rod, F. After the ends of the strips have been threaded through their respective guides, they may be attached to the end of this rod in any convenient manner, a simple and effective way beingthat shown in detail in Fig.

3. As here shown, the end of the rod is slightly tapered and enters a thimble or ferrule, G; but plainly the end of the rod might be cylindrical and the interior of the thimble .be made somewhat flaring. The relative sizes of the thimble and rod are to be such thatwhen the ends of the lining strips, H H, are folded over the end of the rod and then inserted in the thimble the latter will act as a clamp to bind the strips on the rod; after which the movement of the rod into and through the tube will unwind the strips from their reels, I 1', and carrythem, properly curved, to their proper place in the tube. The removal of the thimble as the end of the rod emerges from the farther end of the tube disconnects the rod from the strips; after which the rod can be withdrawn at either end of'the tube, leaving the lining stripsin place.

In order to secure the strips to the inner surface of the tube, I provide a bath of adhesive material, J, through which the outer one of the strips (when two strips-are used) may be passed before it enters the guide E. By passing under the roller K, both sides of the strip become coated with the cement, and any surplus of cement is removed by the brush L and the edge of the opening M.

A simple and effective way of expanding the coated strip into close contact with the innerwalls ofthe tube is by means of a brush,

N, on the rod F. After the clamping ferrule has been removed from the end of the rod, the continued movement of the latter will pass the brush through the tube, and this will press the strips outwardly at all points against the inner surface of the tube. 1 Where two strips are used (as shown in the drawings) and the outer one is coated on both sides, this process will not only attach the outer strip to the pipe but will also secure the inner strip to the outer one.

Of course separate devices may be used for applying paste or cement to each strip used; and manifestly, instead of a brush composed of bristles or equivalent material, a hollow elastic ball might be used-in fact,,an y elastic device that will fill the tube sufficiently to press the strips against the inner surface, and yet will be sufficiently yielding not to tear them.

To facilitate the manipulation of the rod Fa pair ofrolls, P P, may be used, these rolls being grooved and having a suflicient grip upon the rod to drive it through the tube. By making the rod F long enough a reversal of these rolls will return the rod to its normal position after the brush has reached the farthest est end of the tube; but where such length of rod would be found inconvenient the rod can be drawn entirely through the tube and then carried back and entered into the rolls anew.

What is claimed as new is- 1. In combination with suitable rests for supporting a pipe or tube which is to be lined, a carrying-rod, for conducting lining strips into the tube, and one or more guides for cu rving the strips before they enter the tube.

2. In combination with suitable rests for operate on the rod in rear of the linihgstrips, I

substantially as described.

3. In combination with a carrying-rod for conducting strips of paper or other suitable 1 material into a pipe or tube that is to be lined,

with such rod.

5. In combination with a carrying-rod for conducting strips of paper or other material into a pipe or tube that is to be lined, guides for shaping the lining strips into tubular form and one or more tanks for coating the strips with cement to secure their adhesion to the inner surface of the tube.

6. In combination with guides for shaping lining strips of paperor other material into tubular form and rests forsupportingthe tubo tobe lined,arrauged in line with such guides, a clamping mechanism for locking the tube in position while the strips are being introduced.

WILLIAM T. RUETE. Witnesses:

ERNEST IIoPKINsoN, JAMES N. OATLoW.

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