US1672068A - Conduit bender - Google Patents

Description

June 5, 1928.

A. J. LAING CONDUIT BENDER A. JZaZ/q amventoz Filed Jan. 1927 anew UNITED sT-A ARTHUR J'. IJAIN'G, OF DEABBORN, MICHIGAN.

, Application 11 This invention aims to provide a simple,

connurr BENDER.

strong and effectivemeans wherebya conduit may beb'ent, and,'esp vertical plane, g

It is within the province to improve generally and utility of devices of invention appertains.

With the above and other 01) which will appear as the ecially "bent "in of the disclosure to enhance the that type to which the ects in View description proceeds, the invention resides in the combination and arrangement of parts and 1n the details of construction hereinafter described and claimed, that changes in the the invention herein within the scope of it being understood precise embodiment of disclosed, maybe made what is claimed, with-' out departing from the spirit of the invention.

In the draw1ngs:

Figure 1 shows in elevation, a device constructed in accordance with the invention;

Figure 2 is a top plan;

Figure 3 is a section on Figure 1; p

- Figure 4 is a section on Figure 1.

The device forming this application preferably throughout, and includes form of a plate. A U-shap jects rearwardly thereof, one side of the br forced by an joined to said body 1.

' A clamping is mounted in the bracket 6, such as a vertical post,

available as a structural building where the conduit done, the operator can with such a post.

the line 3-3 of the line 4-4 of the subj ect matter of is made of metal a body 1 in the ed bracket 4 profrom thebody 1 at one end acket being rein- L-shaped buttress which is side of the bracket, and tothe device 5, such as a set screw,

4, and a support may be engagedbetween the set screw 5 and the opposite side portion of the bracket.

element in the -bend1ng-1s being provide himself easily At its upper end, the body 1 or plate has a forwardly extended projection 7 which extends part-way across the plate body, 1 slanting downward jection 7, as shown in F downwardly but or body 1, the

ly from the pro igure 1. In the lower edge of the projection? there is an inverted V-shaped seat the correspondingly shaped that lies against the body 1, an arcuate lower edge 11 a groove 12. A securing e 8 adapted to receive end 9 of a die 10 the die .10 having in which there is] lement 14 of'any accidental displacement.

, others,

If no post 6 is led January. 24,1927. Serial nopmaoss.

desired sort is mounted in the projection 7 andjin -the body, the securing element 14 extending across the seat 8 and through the end 9 "of the: diel'lO. The die 10 has a shoulder 15 which seats againstv the lowe'r edge 01' the projection 7, as shown in Figure 3 Owing to the-way in whichthe seat 8 and the end 9 of the die 10cooperate, to-

1 gether with. the further fact that the shoulder 15 is provided, practically all of the strain in the pipe-bending operation is taken off the'securing element 14, the securing element 14, serving, primarily, merely to pre-.

vent the die 10 from dropping downwardly out of the seat 8 in the projection 7.

Near to its lower end, the body 1 is supplied with afor'wardlyextended off-set 16, in

the upper edgeof which there is a'V-shaped seat 17 adapted to'receive the correspondingly shaped end 18 of a bracket 19 which lies against the body 1,the bracket 19 being provided in its upper end with a groove 20 which is complemental ;to the groove 12 of the die 10. A securing element 21 passes throughthe off-set 16 into the body 1 and extends through the end 18 ofthe bracket 19; but, as has been stated hereinbefore in connection with the securing element 14, there is little or no strain on the v securing element 21, the said securing ele"- ment merely retaining the. end 18 of the bracket 19. engaged in the The numeral 2 2 desi'gnates a metal con duit adapted to; be usedby electricians and it being necessary, very often, to

seat 17 against bend such a conduit. 7 When the conduit is to be'bent,-one end of it is placed inthe groove '20 of the bracket 19,, and the conduit is engaged inthe groove 12.0fthe die 10. A ho0k23'or the like may besecured at 24 to the conduit '22 and then, by means of a block and falls (not shown) or any other suitable agency, the conduit 22 can be flexed into curved form along the base of the groove 12 in the die 10. The construction is suchthat the'die 10 can be taken out and replaced by another die having a'difi'erent curvature, if desired. 1 1 1 There are power benders but, often, they are expensive, bulky, and dangerous to operate. Hand benders are diflicult to operate, and to mount securely. Such benders, moreover, are often'damaged if a heavy pipe is used. The device forming the subject matter of this application is on the market light, portable, and avoids the objections heretofore entered against elther power benders or hand benders. The dies can be interchanged as desired, and the conduit isalways being bent 1n-a vertical plane. The

result is that the conduit, as it isbeing bent,

may be viewed readily, and the bending" can be carried on intelligently to an desired extent, or stopped at any point.

W hat is claimed is: In a pipe-bending device, a plate-like body provided ,at one end with a forwardly extended projection, and at its opposite end w th a forwardly extended offset, there being a seat in the lower surface of the PVFOJGCUOII,

and there being a seat in the upper surface of the offset, a die having a reduced end received in the seat of the projection, a bracket having a reduced end received in the seat of the offset, the bracket and the die being spaced for engagement With a pipe during the bending thereof, and securing elements 'engager'l with the reduced ends of the die and of the bracket, the aforesaid reduced ends ture. I v V ARTHUR J. LAING.

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