US2156744A - Pitting cleaner - Google Patents

Description

H. J. SMITH FITTING CLEANER May 2, 1939.

Filed Dec. 6, 1938 2 Sheets-Sheet 1 Inventor By 3% I w 1 W M A ttorneus May 2, 1939 Q H. J. VSMITH 2,156,744

FITTING CLEANER Filed Dec. 6, 1958 2 Sheets-Sheet 2 Inventor W Attorneys Patented May 2, 1939 UNITED STATES PATENT OFFICE.

1 Claim.

This invention appertains to new and useful improvements in tools for conveniently cleaning copper sweat fittings and various other types of fittings.

The principal object of the present invention is to provide a cleaner of the character stated which will -be handy to use and in structure is simple and not susceptible to the ready development of defects.

Other objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings- Figure 1 represents a side elevational view with a portion of the fitting broken away to disclose the tool inserted therein.

Figure 2 is a longitudinal sectional through the tool.

Figure 3 is a fragmentary longitudinal sectional View showing the retaining arm in disengaged position.

Figure 4 is a section on the line 4-4 of Figure 1.

Figure 5 is an end elevational view of the cleaner.

Figure 6 is a perspective view of a roll of sandpaper or the like.

Referring to the drawings, wherein like numerals designate like parts, it can be seen that the invention consists of the cylindrical head 5 having the V-shaped notch 6 extending longitudinally thereof and at its free end merging with the inwardly extending groove terminating at the end pocket 8, through which the pin 5 is disposed and which serves to receive the eye end I at the foot portion portion ll being disposed in the groove 7 while the arm I2 is disposed in the groove 6 so as to engage over the end portions of a sheet l3 of sand-paper or the like, and retain the sheet of sand-paper circumscribing the head 5. The head is reduced as at M and extended to provide the threaded shank I 5, the groove 6 extending across the reduced portion l4 and terminating at a midpoint of the shank I 5. The arm I2 is olfset as at a to follow the reducement l4 and the view H of the arm l2, the foot portion thereof extending from the off-set a and denoted by the reference character b is provided with teeth 16 which will match the threads of the shank 15 so that the knurled nut I! can be fed on the shank l and over the arm extension 5 b so as to fasten the arm in sand-paper-holding position as shown in Figures 1 and 2.

The free end of the shank I5 is beveled as at I 8 and is seated in the tapered recess H! of the knurled knob 20. Obviously, by engaging the 10 tool into a fitting 2! in substantially the manner shown in Figure 1, the tool can be rotated for thoroughly cleaning the interior of the fitting.

It is preferable that the arm l2 be of V-shape or triangular shape in cross section.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is- A tool of the character described comprising an elongated body having a longitudinally extending slot therein, one end of the body being formed with a pocket, a channel extending from the pocket and communicating with the slot, an L- shaped arm having its lower portion disposed into the pocket, a pin extending across the pocket and through the lower end of the L-shaped arm, the horizontal portion of the arm being adapted to be disposed in the channel while the vertical portion is disposed in the slot, the upper portion of the arm provided with serrations at its outer side, said elongated body being provided with threads at its portion adjacent the serrations of the arm and with which the serrations are matchable, a nut feedable on the threaded portion of the body and upper portion of the arm, and a strip of abrasive material adapted to be disposed around the body and across the said slot, and holding means on the body for holding the arm disposed into the slot and against the said strip.

. HENRY J. SMITH.

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