US 447297 A
Description (OCR text may contain errors)
' R. C. CARPENTER.,
Patented' Mar, '3', 1891.
JJM/568% UNITED STATES ATENT muon.
ROLLA C. CARPENTER, OF LANSING, MICHIGAN.
SPECIFICATION forming part of Letters Patent No. 447,297, dated March 3, 1891-.
Application tiled J'une 26, 1890.
Serial No. 356,783. (No model.)
To all whom it may concern:
Be it known that I, ROLLA C. CARPENTER, a citizen of the United States, and a resident of Lansing, in the county of Ingham and State of Michigan, have invented new and useful Improvements in Pipe- Hangers; and I do hereby declare that the following is a full, clear, and 'exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.
My invention relates to the class of pipehangers for steam or water distribution for heating purposes.
The objects of my invention are to Aprovide a pipe-hanger for steam or water distribution for heating purposes, which may be put under the pipe as the pipe is put up or after the pipe has been placed in position and while it is in use, to suspend the pipe from a point above the pipe, to hold or bind the pipe in the hanger, to sustain two parallel pipes by the same hanger either in a horizontal or vertical plane, and also to allow any longitudinal movement in the pipe, which might be the result of the contraction and expansion caused by heat; and it consists in the means of suspension from a point above the pipe, in the arrangement of the hooks around and under the pipe, in the means for raising and lowering the holding parts of the hanger, in the means for permitting the longitudinal movement of the pipe, and in the arrangement for supporting two parallel pipes in the same plane, and in the pecular construction, arrangement, and combination of the several parts, as hereinafter more particularly described and claimed. v
Figure l is an end view of my invention, showing the pipe in position. Fig. 2 is a side view showing the eye-piece and hooks. Fig. 3 is an end view showing two parallel pipes in a horizontal position.
In the drawings, F is a ceiling-plate, which is perforated for the passage of the bolt E, and concave on the upper side to allow the head of the bolt free play between the plate and the ceiling. This plate is solidlyattached to the ceiling ot' the apartment in which the pipe is pipe and where the support is necessary.
E is a bolt, the head of which is inclosed in the ceiling-plate F and having its lower end screw-threaded.
A is an eye-piece, which is cylindrical in its upper portion and flat in its lower part and nearly rectangular at its end. A cavityc is cored out in the top of the cylindrical part, nearly, if not quite, as deep as the diameter of the pipe to be supported by the hanger. This cavity should be screw-threaded to engage with the screw on the end of the suspendingbolt E. The raising of the eye-piece by the screw brings the hooks of the hanger in close contact with the under side of the pipe to be supported. By means of this constructionl am enabled-to put the hanger under pipes which have been put in place and need further support Without taking down orunjointing the pipe.
a is a rectangular slot cut in the lower part of lthe eye-piece for the reception of the upper arms of the hooks, and should be somewhat wider than the thickness of the two arms which are to be inserted in it. This proportion of the width of the slotto the thickness ot' the hooks to be inserted in it gives the hooks sufficient play to accommodate themselves to any longitudinal movement of the pipe caused by the expansion and contraction of the metal.
Bis the body of one of the hooks ot the hanger, which may be of any form in crosssection, although a rectangular form is preferred.
b is the upper curved arm of the hook, which should be curved to a circular outline having a radius equal to one-half of the diameter of the pipe to be supported by it and extending about half-way, or a little less, around the pipe, as shown in Fig. 1.
b is the lower curved arm of the hook, which is bent on the same side of the body of the hook as the upper arm, but with a curvature of a longer radius for the reception of a larger pipe P. The'arm of one of these hooks proportioned to the pipe is placed under the pipe and the other arm is inverted in the slot in the eye-piece. ,Asimilar hook is used on the other side of the pipe, and then the suspending-rod is turned and the eyepiece is drawn upward by the screw on the rod bringing the hooks against the pipe.
The higher the eye-piece is raised the closer the hooks are drawn up under the pipe, or if the pipe has been suspended for some time and has sagged down on the hanger it can be raised to its level again by turning the suspending-bolt and raising the eye-piece. These hooks are so constructed that they can be reversed and either arm inserted in the eye-piece, so that the pipe shall rest on the arm nearest to it in size. The tendency of the strain on the two hooks is to draw inward toward the pipe, so that the greater the strain the closer they bind to the side of the pipe.
If the pipe to be supported is smaller than the radius of the curve of thehook, the strain draws the hook down against the pipe 0n each side and holds it in position. The same result is produced if the pipe is a little larger than the hooks. Thus the two hooks can be used l'or pipes of several different sizes \\'itl1- out iinpairing their efficiency.
In case it is necessary to support t\vo pipes in the saine vertical plane one ol the hooks should be made so much the longer, and they should be placed so that a hook should be on each side of the upper pipe.
If it is required that two pipes should be supported in the saine horizontal plane, two hooks of the same size are used with one eyepiece. The hooks are inserted in the eyepiece, then crossed, and the pipes laid in the lower arms of the hook. In this case the pipe on the arm of one hook is brought in contact with the back of the other hook and is bound in the curved arm on which it rests in proportion to the strain.
The advantages of this hanger are that it can be placed under a pipe which is in use, and which may need support at only one particular point without disturbing the connections of the pipe; that it yields to the expansion and contraction of the pipe caused by heat and cold; that one hanger can be used with pipe of several sizes, and thatit is easily put up and as readily removed, and that its hold on the pipe is greater as the strain increases.
Vhat I claim as my invention is l. In a pipe-hanger for steam or water distribution, the combination of the reversible hook having its arms curved to the curves ot' different pipes on the same side ot' the body of the hook, with the means suspended from the ceiling for receiving the reversible hook, all substantially as described.
i?. In a pipe-hanger for steam or water distribution, the combination of the reversible hook having its arms curved to the curves of different pipes on the same side of the body of the hook, with the eyepiece for receiving one arm of the hook, and the rotatable rod for sustaining the eye-piece attached to the ceiling, all substantially as described.
3. The combination of the suspending-rod supporting the eye-piece With the eye-piece, supporting the hooks, the Wide slot for receiving` thehoolrs to permitlateral movement, and the hooks inserted in the slot, all substantially as described.
ROLLA C. CARPENTER. Vitnesses:
RICHARD HIscocK, E. P. SAFFORD.