US1651593A - Pipe-bowl reamer - Google Patents

Description

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ALBION M. GOLDSTEIN, OF ST. LOUIS, MISSOURI.

PIPE-BOWL REAMER.

Application filed member 2, i925. serial No. c6216.

'lhisinvention relates to a certain new. and useful improvement in pipe-bowl reamers.

My invention has for its chief object the provision of a reamer which may be inexpensively manufactured, which is conveniently usable, which is self or automatically adjustable to fit ,pipe bowls of different sizes and diameters, and which is efiicient in the performance .of its intended functions.

And with the above and other objects, in view, my invention resides in thenovel features of 'form, construction, arrangement, and combination of parts hereinafter described and pointed out in the claims.

In the accompanying drawing,

Figure l'is an elevational view of apipe bowl reamer embodying my invention, illustrated in operative self-adjusted reaming engagement with a pipe, the latter being shown partly in elevation and partly in section; and

Figures 2 and 3 are, respectively, side and end elevational views of the reamer.

Referring now morein detail and by reference characters to the drawing, which illustrates a preferred embodiment of my invention, A indicates the body of the reamer, which is preferably constructed of a single or unitary section of suitable metallic strip material first bent intermediate its ends into substantially U-shape to include a bight 1 and a pair of yieldingmembers or legs 2, 2, normally disposed lengthwise in spaced approximately parallel relation. At the free or outer ends of both the legs 2, the strip is then gently, asat 3, reversely bent to provide a pair of suitably elongated so-called blades 4, l, which are normally yieldingly disposed in suitably spaced approximately parallel relation to their respective supporting legs 2, the strip at the free ends of the blades 4 being further bent to provide oppositely disposed outwardly presented lateral end-members 5, 5, which are loosely disposed for movement in approximately the plane of the bight 1 and which function to stiffen the legs 4:, 4;, at their free ends.

Fitting over and upon the body A to generally conceal the bight 1 and the free ends 5 of the blades 4, and riveted or otherwise permanently fixed, as at 6, to the bight 1, is an inverted U-shaped member 7, which serves as a finger gripping member for the reamer.

v In use and operation, the, rcamer is adapted forendwlse insertion into the pipe-bowl to be cleaned or reamed, as illustratedin ,Figure 1, and it will be evidentthat, the legs 2 and blades 4 being free to yield relatively to one another in the line of the length of the finger-grip 7, or, as it maybe described, in a plane transverse to their lengtli, the legs 2 and blades 4 readily automatically, so to'speak, adjustthemselves to tightly fit the particular bowl B being cleaned or reamed. In like manner, the reamer is self-adjustable to fit pipe-bowls of different sizes or diameters. The reamer being so fitted in the bowl and twisting or turning movement being then imparted thereto through the finger-grip 7, the blades 4 elficiently function to ream or cut for removal any tobacco-crust or the like without in the slightest damaging the bowl. It will be observedthat the legs 2 and the blades 4 at their joint or connection 8 are preferably so shaped to approximately conform for reaming effectiveness to the base of the pipe-bowl, as shown.

I am aware that changes in the form, construction, arrangement, and combination of the several parts of'my new pipe-bowl reamer may be made and substituted for those herein shown and described without departing from the nature and principle of my invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A pipe-bowl reamer comprising a pair of normally spaced blade-supporting members yieldingly movable relatively to each other, and a pair of elongated blades connected to and supported by said members, the blades being normally spaced from said members and yieldingly movable relatively to each other and to said members.

2. A pipe-bowl reamer comprising a fin ger grip, a pair of normally spacedbladesupporting members fixed at an end to the grip and being lenthwise obliquely yieldable relatively to each other, and a pair of elongated blades connected at an end to said members and having their opposite ends loosely disposed for movement adjacent the finger grip, the blades being normally in spaced relation to said members and to each other and being yieldingly movable relatively to each other and to said members.

Ill!

3. A pipe-bowl reainer comprising a pair of blade-supporting members adapted at an end for insertion into the pipe-bowl, and a pair of elongated blades respectively connected at an end to said ends of, and supported by, said members, the blades at their opposite ends being normally spaced from said members and yieldingly movable rela-J tively to each other and to said members.

4:- A pipe-bowl reainer comprising a finger grip, a pair of blade-supporting members fixed at an end to the grip and adapted at their other end for insertion into the pipe-bowl, and a pair of elongated blades respectively connected at an end to said last named ends of said members, said blades extending in opposed relation to said members and having their opposite ends loosely disposed for movement adjacent the finger grip, the blades at their free ends being normally in spaced relation to said members and to each other and being yieldingly m0vable relatively to each other and to said members.

5. A pipe-bowl reamer comprising a finger grip, in combination with a flexible body constructed of a single seetlon of strip metallic materialbent and formed to include a normally spaced and yieldingly movable relatively to each other in the length thereof.

In testimony whereof, I have signed my name to this specification.

ALBION M. GOLDSTEIN.

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