|Publication number||US750660 A|
|Publication date||Jan 26, 1904|
|Filing date||Jun 8, 1903|
|Publication number||US 750660 A, US 750660A, US-A-750660, US750660 A, US750660A|
|Inventors||J. T. Langford|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (1), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
No. 750,660. PATENTED JAN. 26, 1904. J. T. LANGPORD.
MACHINE FOR LINING PIPES.
APPLICATION FILED JUNE 8, 1903.
N0 MODEL. 2' 2 SHEETS-SHEET 1.
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No. 750,660. PATENTED JAN. 26, 1904.
J. T. LANGFORD.
MACHINE FOR LINING PIPES.
APPLICATION FILED JUNE s, 1903.
no MODEL. 2 SHEETS-SHEET 2.
WM E55 E5.
Patented January 26, 1904.
UNITED STATES PATENT OEEIcE.
JOHN T. LANGFORD, OF NEWTON, lVLASSAOHUSETTS MACHINE FOR: LINING PIPES.
SPECIFICATION forming part of Letters Patent No. 750,660, dated January 26, 1904.
Application filed June 8, 1903. Serial No. 160,536. (No model.)
To all whmn it may concern.-
Be it known that I, JOHN T. LANGFORD, a citizen of the United States, and a resident of Newton, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Lining Pipes, of which the following is a specification.
This invention relates to improvements in machines for lining pipes with cement or other material; and it has for its object the construction of a simple and effective machine capable of economically producing cement-lined pipes that will stand transportation and rough handling without danger of breaking the lining.
The said machine is constructed as follows, reference being'had to the accompanying drawings, wherein- Figure 1 is a front elevation of the machine, parts being shown in section. Fig. 2 is a central longitudinal section on the line 2 2 shown in Fig. 1. Fig. 3 is a partial side elevation of the power-cylinder, showing its piston-rod at the upper end of its stroke. Fig. 4 is a detail top plan view of the supportingframe and the table longitudinally adjustable thereon. Fig. 5 is an enlarged cross-section on the line 5 5 shown in Fig. 2. Fig. 6 is an enlarged cross-section on the line 6 6 shown in Fig. 2. Fig. 7 is a detail sectional elevation of the conveyer and waste pipes of the poweroylinder and the stop and waste cocks arranged thereon. Fig. 8 is a detail sectional view of the lower coupling or lining-base, a portion of the pipe to be lined, and the core, showing a porous disk' or diaphragm interposed between the lower end of said pipe'and the perforated portion of the lining-base; and Fig. 9 is a top plan view of Fig. 8, showing the pipe and core removed and showing the said porous disk or diaphragm in position over the perforations in the lining-base.
Similar letters refer to similar parts whereever they occur on the different parts of the drawings.
A is a power-cylinder having closed ends provided with suitable stuffing-boxes. 'ithin said cylinder is longitudinally movable the pistonlB, provided with a piston-rod B, pass ing through the lower stuffing-box, and to the lower end of said piston-rod below the powercylinder is secured a piston or plunger B. (Shown in Figs. 1 and 2.) I
b is an upwardly projecting extension of the piston-rod B, which extension is guided in and passes through the upper stuffing-box of the said power-cylinder, as shown in Figs. 1 and 2.
To the upper end of the extension 6 is detachably secured, preferably, a suitable indicator 6 or similar device, by the use of which the person in charge may at all times ascertain the position of the pist n within the powercylinder. Said power cylinder A is firmly secured in position to the wall C in the workroom where the machine is located, to thesupporting-frameE E, or otherwise, as preferred.
D in Figs. 1 and 2 represents the floor of the work-room. On said floor is firmly secured the supporting frame E E, preferably composed of a pair of parallel guide-beams arranged at a proper distance apart and upon which is slidably arranged the table F, provided with a forked opening or slot f, adapted to receive and solidly support in a detachable manner the lining-reservoir G and the pipe 1', with its couplings H and K.
Through the floor D is made an opening D, which opening is surrounded by the supporting-frame E and is of sufficient length to permit the table F, with its connectingpipes, to be moved horizontally from the position shown by the full lines in Fig. 2 to that shown by the dotted lines in said figure, and vice versa.
E in Figs. 2 and 4 is a stop bar or projec tion on the inner end of the support E E, adapted to serve as a stop for the sliding table F when the lining-reservoir G and the cone necting-pipes are placed in axial alinement below the power-cylinder A.
To the lower end of the pipe I, that is to be lined, is secured in a detachable manner the lining-base K, and to the upper end of said. pipe is also detachably secured the flange or To the upper end of coupling H, as shown. the flange or coupling H when resting upon the table F is secured in a detachable manner the lower open end of the lining-reservoir The said lining-reservoir is open at its upper end for receiving the lining material when the table F is in the position shown by the dotted lines in Fig. 2 and for the reception of the plunger B when the said, table and its connected parts are placed axially below the power-cylinder A, ready to receive the power to be transmitted through the reciprocating motion of its piston B and plunger B" when employed in lining pipes.
For the purpose of lining pipes I locate centrally within the pipe a detachable core L, the lower end of which is preferably guided in a perforation in the upper end of the lining-base K, as shown in Fig. 2, or said core,
may be both guided and supported within said base. The upper end of said core is provided with wings ZZ Z, which are preferably supported and centered within the upper coupling H, the core being arranged so as to admit the lining material into the interspace between the core and the wall of the pipe. (Shown in Figs. 2 and 6.)
M is the interspace between the exterior of the core and interior of the pipe that is to be lined, and into such space is forced the lining material from the reservoir G during the downward motion of the plunger B, as shown in Figs. 2 and 5. At the bottom of said interspace M there is made in the upper end of the lining-base-K'a series of perforations it is k for the free exit of the air contained in said interspace, and to permit the lining material to be forced freely into such interspace without atmospheric resistance during the lining operation and to prevent the passage of the lining material through the perforations I cover them with a suitable filter S, as shown in Figs. 8 and 9.
- means of pipes R R, which'pipes are detachvice versa.
1* is a check-valve on the pipe R, as is usual in air exhausting or pressure devices.
9 and q are valves or cut-ofls at the opposite ends of the vacuum-chamber Q, in the or-' dinary manner.
For the application of power and to reciprocate the piston B in the power-cylinder A and the plunger B, attached to the piston-rod of such cylinder-piston, I may use any desired mediumsuch as,for instance, steam, air,electricity, or water under pressure; but in practice I prefer to use power derived from waterpressure, as the exhaust-water can be used to advantage for necessary washing purposes, or I may apply the power developed in any suitable form directly to a piston located within the lining-reservoir G above the lining material and accomplish the same result, although in a less satisfactory manner.
To the upper and lower ends of the powercylinder A, as shown, are secured the respective branch pipes N N, which are connected to the Water-supply pipe 0, leading from any desired source of pressure-such as the streetmain, an overhead tank, or a pump, either alone or in addition to other source of pressure, as may be most practical and convenient. Upon the branches N N are arranged, respectively, the stop and waste cocks n a, provided with waste-pipes p p, as shown in Figs. 2 and 7. The said stop and waste cocks may be made of any well-known construction and need not here be described in detail hen the said stop and waste cocks are in their respective positions, (shown in Fig. 7,) the water under pressure is admitted through the pipe N and cock n to the upper end of the powercylinder A above its piston B, causing it and its connected parts to be forced downward, while at the same time the water in said cylinder below its piston is exhausted through the cock n and waste-pipe p. When the piston in the lower cylinder A reaches the limit of its downward stroke, the position of the cocks N N is reversed, so as to cause the water under pressure to pass through the cock n, thereby forcing upward the piston and its connected parts, while atthe same time the water in the said power cylinder is forced out through the cock n and waste-pipe p, and so on during the operation of the machine.
The operation of the machine is as follows: Preparatory to lining a pipe the following par-ts are detached from each other: namely,
the pipe I, the lower lining-base K, the upper flange or coupling H, the core L, and the liningreservoir Gr. The movable table F is placed in the position shown in dotted lines in Fig.2.
The piston of the power-cylinder A and its.
plunger are then held in the raised position shown in Fig. 2. T0 line the pipe I, the liningba'se K is attached to the lower end of said pipe, and the flange or coupling H is attached to its upper end. I then insert-the core L into the:
pipe in such a manner as to centerthe :lower end of said core in the perforation in the upper end of the lining-base K, the wingsil H, attached to the upper end of the core, being supported and the core centered within the upper.
coupling H, by which arrangement the core L is held centrally within the pipe I, with an interspace M between the interior of the pipe and the exterior of the core, as shown in Fig. 2. The said pipe I and its connected parts are nect the lining-reservoirv G to the coupling H' and fill said reservoir in wholeor in part with the lining material. The said table F and its supporting parts are then moved'from the po' sition shown by dotted lines in Fig. 2 to that shown by full lines in said Fig. 2, in which latter position the axial lines of the powercylinder A,the lining-reservoir G,and the pipe I, with its connected parts, are in alinement. The vacuum-chamber Q is then connected to the pipe I through the lining-base K, as shown in Fig. 1. The cocks n nflbeing turned to the positions shown in Fig. 7 cause the water under pressure to be conveyed to the upper end of the power-cylinder A and exhausted from its lower end, by which the piston B is forced downward, forcing the plunger B into the lining-reservoir, and thus forcing the lining material into the interspace between the interior of the pipe I and exterior of the core L, while at the same time the valve 9, connected with the vacuum-chamber Q, being opened a vacuum is created in the interspace in said pipe I, thus assisting the power device in solidly lining the pipe throughout its entire length. WV hen the lining is completed, I disconnect the vacuum-chamber Q and reverse the positions of the cocks 9b 12 so as to convey the water under pressure into the lower end of the power-cylinder A and exhaust it from its upper end, by which the piston B and plunger B are raised to the inoperative position shown in Fig. 2, in which the said plunger is shown raised above the upper end of the liningreservoir,when I move the table F and its connected parts to the position shown by dotted lines in Fig. 2. The lining-reservoir is then disconnected and the lined pipe and its connected parts removed from the table, after which the core L is withdrawn from within the pipe I, and the couplings H and K are disconnected from said pipe, leaving the latter in proper lined condition.
I have shown in thedrawings the machine as being held and operated in a vertical position; but I do not wish to limit myself to this exact construction and arrangement, as I may arrange and operate the machine in a horizontal or other position without departing from the essence of my invention.
By the use of the above-described machine I am able to quickly, evenly, and soldidly line a pipe or a number of pipes at the same time with a thin lining of cement or other lining material, giving a larger internal diameter than is usual in such pipes, and since the pipes so lined will stand transportation and rough handling without danger of the cement lining being broken I am able to performthe work in a central station equipped with modern appliances for producing the highest quality of work and at a minimum cost of production when compared with lining pipes at the locations where they are to be used, as at present, and under the adverse conditions thereexistmg I Having thus fully described the nature, construction, and operation of my. invention, I
wish to secure by Letters Patent and claim 1. In a machine for. lining pipes, the combination of a lining-core, a lining-base, a ventilating deviceand a reservoir containing cement or other lining material, all connected to a pipe to be lined and detachable from said pipe after lining, and a power or pressure device adapted to force said lining material from said reservoir into the interspace between the core and the inside of the pipe during the process of lining the pipe, substantially as and for the purpose set forth.
2. In a machine for lining pipes, the combination of a lining-core, a lining-base, a ventilating device, a reservoir containing cement or other lining materials, also a suction or vacuum device adapted to produce a vacuum in the interspace between the core and the inside of the pipe to be lined, all detachably connected to said pipe, and a power or pressure device adapted to force said lining material from said reservoir into said interspace during the process of lining the pipe substantially as and for the purpose set forth.
3. In amachine for lining pipes, the combination of a supporting-frame, a table movable thereon and supporting a pipe to be lined having a lining-core, a lining-base, a ventilating device, and a reservoir containing cement or other lining material, all detachably connected to said pipe, and a power or pressure device adapted to force said lining material from said reservoir into the interspace between the core and the inside of said pipe during the process of lining the pipe, substantially as and for the purposeset forth.
4. In a machine for lining pipes, thecombination of a supporting-frame, a table movable thereon and supporting a pipe to be lined, having a lining-core, a lining-base, a ventilating and filtering device, a suction or vacuum device, and a reservoir containing cement or other lining material, all detachably connected to said pipe, and a power or pressure device adapted to force said lining material from said reservoir into the interspace between said core and the inside of said pipe during the process of lining the pipe substantially as and for the purpose set forth.
5. In a machine for lining pipes, the combination of a reciprocating plunger or pressure device, a core centrally inserted within a pipe to be lined, a reservoir containing lining material, the pipe and reservoir adapted to be moved in and out of alinement with said pressure device, a frame having a movable table on which the pipe and its connections and the reservoir are supported during the lining operation substantially as and for the purpose set forth.
6. In a machine for lining pipes, the combination of a power-cylinder having a reciprocating piston and plunger, a suction or vacuum device, a core centrally inserted within a pipe to be lined, a reservoir containing lining material,the pipe and reservoir adapted to be moved in and out of alineinent with saidpower-cylinder, a frame having a movable table on which the pipe and its connections and the reservoir are supported during the lining operation substantially as and for the purpose set forth.
In testimony whereof I have aflixed my signature in presence of two witnesses.
JOHN T. LANGFORD.
Witnesses: ALBAN ANDREN, ELIZABETH L. RoBINsoN.
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