US1329984A - Protector for conduits or pipes - Google Patents

Description

P. MclLROY.

PROTECTOR FOR cowouns 0R PIPES.

APPLICATION FILED OCT. l7, I919.

Patented Feb. 3, 1920.

[72002262 Eta/v a 7% UNITED STATES PATENT OFFICE.

PETER MCILROY, OF ALLISON PARK, PENNSYLVANIA, ASSIGNOR T0 ENAMELED METALS COMPANY, 013 SHABPSBURG,}1?ENNSYVANIA, A CORPORATION OF PENNSYLVANIA.

rno'rnc'ron r03. comiurrs on PIPES.

Specification of Letters Patent.

Patented Feb. 3, 1920.

Application filed October 17, 1919. Serial No. 331,332.

To all whom it may concern:

Be it known that 1, PETER McILRoY, a citizen of the United States, and a resident of'Allison Park, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Protectors for Conduits or Pipes; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to protectors for pipes or conduits, and has special reference to the type of fragile protectors disclosed in my United States Letters Patent No. 1,120,731 dated December 15, 1914.

The object of my invention is to provide a cheap, simple and eflicient metall c protecting sleeve for use with such fragile protecting sleeve and which may be easily,

quickly and securely attached to such fragile sleeves, which are in direct engagement with the threaded terminals of the plpe or conduit.

Another object of the invention is to provide such a form of metallic protecting sleeve which will be capable of thoroughly protecting the fragile sleeve by guarding the same against injury through contact with foreign objects and particularly the outer edge of the same, thereby protect1ng the threads of the pipe or conduit, and also such a form which can be easily and quickly removed with such fragile protector from the pipe or conduit when desired.

A still further object of the invention is to provide such a metallic protecting sleeve which when applied to the fragile protector will enable the pipe 01' conduit to be hung with the coupling end up when dipped or coated vertically with the enamel or other material usually employed on the pipe for use as an electrical or other conduit.

To these ends-my invention consists, generally stated, in the novel arrangement, construction and combination of parts, as hereinafter more specifically set forth and described and particularly pointed out in the claims. a

To enable others skilled in the art to which my invention appertains to construct and use my improved protectors for pipes or conduits, I will describe the same more fully, referring to the accompanying drawing, in which-- Figure 1 is a side view of a coated pipe or conduit unit embodying my invention;

Fig. 2 1s a longitudinal section of the same;

Fig. 3 is a cross section of the pipe or conduit unit on the line IIIIII Fig. 1 look ing in the direction of the arrows;

Fig. 4 is an enlarged side view of one end of the pipe or conduit unit showing my invention applied thereto; and

Fi 5 is a cross-section of the same on the line V- V Fig. 1.

Like symbols of reference herein indicate like parts in each of the figures of the drawing.

As illustrated in the drawing, a repre sents the length of pipe which has the usual threaded coupling 1) applied to the external threads 0 at the terminal of such pipe for approximately half the distance of the threads in such coupling, and the other ter minal has my improved protecting sleeve appl ed to its external threads 0. This sleeve 1s deslgnated as a whole 'by the numeral A and consists of the fragile protecting member 1 and the metallic protecting member '2 embracing one end of the same, such fragile member being bf the type disclosed in said patentand formed of paper,-linen, pulp or some similar material and the metallic member being-formed of tin, sheet iron or other light metal. These protecting sleeves are employed with pipes which are provided with an interior and exterior coating thereon, as at d, and are applied to such pipes before such coating is applied.

The metallic member 2 is formed of thin sheet metal, such as tin, and consists of the annular body portion 3 and the laterally extending annular flange 4 at one end of the same, and before the pipe a has its coating d applied the fragile member 1 is applied to threads 0 by simply pushing the same over such threads, so that its outer end is substantially flush with the outer end of such slightly beyond such edge 1 on said fragile member and thereby enabling such flange 4 on the member 2 to come against the outer end of the pipe at. The metallic member 2 is held in place on the fragile member 1 after being positioned on the same by crimping the inner end edge 7 of said member2 in any suitable manner, as shown by the corrugations 8 which extend continuously around the member 2 and will take into the mem her 1 and thus securely and firmly hold the metallic member in place on the fragile member.

After the protecting sleeve A formed of the fragile sleeve member 1 and the metallic slee e member 2 are thus applied to each of the pipes a, suchpipes are then hung vertically in the usual manner by their couplings Z) at one end from the ordinary racks or cages generally employed, which will allow the protecting sleeves to be at the other or lower end of such pipes, so that such pipes can then be dipped vertically by the well known process into tanks containing the coating material for the application of the coating d thereto, after which the usual other steps of drying or baking such coating on the pipes, inspecting, labeling, etc., can be performed.

When it is desired to remove the protecting sleeve A it is only necessary to unscrew the same from the threads 0 on the pipe (4 through grasping such sleeve by the fingers in the ordinary cases, and in case the sleeve sticks to such threads by reason of the coating seeping in between the fragile member 1 and the said threads it an easily be removed or. torn away by grasping the sleeve with a pair of pliers or the like to pull the same off in an obvious manner.

It will thus be seen that in such dipping of the pipes vertically with the'protecting sleeves on the same being at their lower ends and by being hung by their couplings at the upper ends such sleeves will be coated. as

.will also such couplings along with the pipes and in withdrawing such pipes from the coating bath the coating n'iaterial will be free to move along both the interior and ex terior surfaces of such pipes and couplings and back into the bath while such pipes are hung dripping over such bath in the ordinary manner, thereby such coating material.

receiving no interference'by the sleeves in such withdrawal or dripping and enabling a uniform coating to be had on such pipes, couplings and sleeves.

It will be obvious that in the use of my improved protector for pipe and conduit units, with the combined fragile and metallic sleeve being applied before the coating is applied to the pipes, the metallic sleeve will also be coated cxteriorly thercl'wy overcoming any liability of the accumulation of rust on same and njuring the coated pipe or conduit thereby and enabling the coating material to seep in between the said sleeve and fragile sleeve to bind the same together more firmly and in case these two sleeves are not firmly secured together by the mechanical methods employed, while such coating of the metallic sleeve will also make a more finished pipe or conduit unit.

It-will also be seen that in the use of the fragile protectors without the sheathing of protecting material around the same, such as when such protectors are subject to rough handling in transit, that they become broken and fall away from the threads, and with the'met'allic protecting sleeve, such occurrence is well guarded against, for as will be readily observed such sleeve not only protects the face of the fragile sleeve but also protects the outer end of the same and thus any injury to the threads from striking any foreign objects or the entrance of mud or dirt into such threads is prevented.

Various modifications and changes in the design and construction of my improved protector for pipes or conduit units, or in the material employed, as well as in the steps of forming such pipes or conduit units and in the application of such sleeve to such pipes or conduit units, may be resorted to Without departing from the spirit of the invention or sacrificing any of its advantages, as defined in-the appended claims.

lVhat I claim as my invention anddesire to secure by Letters Patent is:

1. As a new article of manufacture, the combination with a conduit having a threaded end and a fragile thread protecting member associated with said threaded end, of a metallic protector secured to said member at the side thereof remote from the threads, said member and protector being adapted to be unscrewed or torn from the threads of said end when the conduit is to be used.

2. As a new article of manufacture, the combination with a conduit having a threaded end and a fragile thread protecting member associated with said threaded end, of a metallic protector secured to said member at the side thereof remote from the threads, said member and protector being capable of easy unscrewing or tearing from the threads of said end when the conduit is to be used.

3. As a new article of manufacture, the combination with a conduit having a threaded end and a fragile thread protecting member associated with said threaded end, of a metallic protector secured to said member at the side thereof remote from the threads and having a flanged outer end covering the outer end of said member, said member and protector being adapted to be unscrewed or torn from the threads of said end when the conduit is to be used.

4. As a new article ofimanufacture, the combination with a conduit having a threaded end and a fragile thread protect-- ing member associated with said threaded end, of a metallic protector secured to said member at the side thereof remote from the threads and having a flan ed outer end covering the outer end of said member and extending over the outer end of said conduit, sald member and protector being adapted to be unscrewed or torn from the threads of said'end when the conduit is to be 'used.

5. As a new article of manufacture, the combination with a conduit having a threaded end and a fragile thread protecting member associated with said threaded end, of a metallic protector secured to said member at the side thereof remote from the threads by a continuous crimping around the same, said member and protector being adapted to be unscrewed or torn from the threads of said end when the conduit is to be used.

6. The herein described process of forming pipes or conduit units having threads at their terminals, consisting in applying a protecting sleeve of soft material to one of said terminals, applying a protector of hard and thin material over said first named protector to protect the end edge of said first named protector and threads, and crimping said last named protector to permit the same to take into said first named protector to hold said first named protector in place and permit the unscrewing ortearcrimping said last named protector continuously around the same to permit said protector to take into said first named protector to hold said first named protector in place and ermit the easy unscrewing or tearing of said protectors from said pipes or unit.

8. The herein described process of forming pipes or conduit units having threads at their terminals and a coupling associated with one of said terminals, consisting in applying a protectingsleeve of soft material to the other of said terminals, applying a protector of hard and thin material over said first named protector to cover the end of said first named protector and threads, securing said last named protector to permit the same to take into said first named ing pipes or conduit units having threads at their terminals and a coupling associated with one of said terminals, consisting in applying a protecting sleeve of soft material to the other end of said terminals, applying a protector of hard and thin material over said first named protector to cover the end of said first named protector and threads, crimping said last named protector continuously around the same to permit said .protector to take into said first named protector in place and permit the easy removal of said protectors together from said pipe or unit, and coating said pipe or unit and protectors by dipping the same vertically with the coupling end up.

In testimony whereof, I, the said PETER MCILROY, have hereunto set my hand.

PETER McILROY.

Witness J. M. GEOGHEGAN.

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