US1499003A - Beading tool - Google Patents

Description

June 24, 1924. 1,499,003

C. S. COLEMAN BEADING TOOL Filed April 17 1922 I 27 244;; 6'. blame-n Patented .lnne 2 192 i.

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READING TOOL.

Application filed April 17, 1922. Serial No. 553,309.

T 0 all whom it may concern. 7

Be it known that CHARLES S. COLEMAN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Beading Tools, of which the following is a specification.

My invention relates to a device for forming beads or flanges on the ends of boiler flues the principal object of my invention being to provide relatively simple, practical and eflicient tool that may be readily manipulated and which will be effective in forming that portion of the flue that projects beyond the flue sheet into a bead or flange of uniform size and contour.

A'further object of my invention is to provide a flue beading tool that will perform its intended functions without in anywise affecting or rupturing the joint that is formed between the flue and sheet by the expanding tool.

A further object of the invention is to provide simple and eflicient means whereby the beading tool is firmly retained in the same relative position at all points through out its circular path of travel, during the formation of a bead on the end of a flue.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts that will be hereinafter more fully described and claimed and illustrated in the accompanying drawings, in which Figure 1 is a sectional View showing parts of a flue and flue sheet, my improved beading tool, and a portion of a pneumatic hammer that is utilized in operating the tool.

Fig. 2 is a cross section taken on the line 22 of Fig. 1.

Fig. 3 is a perspective view of the hammer or bead forming member of the device. Fig. 4 is a perspective view of the guide block for the hammer or bead forming tool.

Fig. 5 is a perspective view of the flue eX- panding tool and its tapered pin or mandrel and which latter serves as a support or journal for the beading tool guide block.

Fig. 6 is an elevational view of a modified form of the beading tool guide block.

Referring by numerals to the accompanying drawings which illustrate a practical embodiment of my invention, 10 designates a flue sheet having an opening 11 in which is seated the end of a flue 12. A gasket 13 is seated in the opening 11 between the sheet 10 and flue 12 and the end portion of the latter is expanded in the opening in any suitable manner preferably by means of a sectional-cylindrical expanding tool such as 14, the sections of which are forced radially outward by means of a tapered pin or man drel 15.

7 Obviously, this pin or mandrel when seated in the tool 14 occupies a position coaxial with the line 12 and the outer end portion 16 of said mandrel is cylindrical in form so as to serveas a journal for the beading tool guide block 17 which is formed with an opening 18 that receives portion 16 ofmandrel 15. By virtue of this arrangement the guide block is supported so as to revolve about the axis of the mandrel and likewise the axis of the flue.

Formed through the upper portion of guide block 17 is an aperture 19, the axis of which is disposed at a slight angle relative to the axis of opening 18.

Y Arranged for sliding movement through aperture .19 is the cylindrical body portion 20' of the beading tool, said body being provided on its forward end with a head 21 and the outer face of the latter being provided with a transversely disposed bead forming groove 22.

The rear end portion of the beading tool body is formed into a shank 23 that is adapted to be received by the tool engaging member of a pneumatic hammer 24.

Formed in theupper portion of block 17 is a longitudinally disposed slot 25 into which projects the outer portion of a pin 26 that is seatedin the tool body 20. Thus the heading tool is mounted for reciprocatory movement within guide block 17 and retained against rotary movement therein.

In the operation of my improved beading tool the parts are assembled as illustraed in Fig. 1, and as the pneumatic hammer is operated in the usual manner the blows of the piston or plunger are received by the rear end of shank 23 and as a result the transverse recess 22 in the face of head 21 of the tool directly engages the end of the flue that projects beyond th sheet and beads the projecting end downwardly onto the face of the sheet immediately adjacent to the opening 11.

During this beading operation the hammer is manipulated so that guide block 17 that performs the functions of a carrier swings about the mandrel as an axis and during this movement the heading tool maintains the same relative position throughout the entire circular path of travel. As the expanding device or wedg- A flue beading tool of my improved construction is comparatively simple, may be easily and cheaply produced and may be advantageously employed in the rapid formation vof beads on the ends of flues seated in flu sheets, without the attendant danger or liability of breaking or rupturing the oints between the expanded ends of the fines and the sheets. Obviously, the construction of the device may b modified in details without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim as my invention 1. A flue beading device comprising a member insert-able in the end of a flue to be beaded adapted to be expanded into engagement with the flue, a pin embodied in said member projecting axially from the end of the flue, a guide block turnable on said pin, a reciprocal tool shank slidably carried on said guide block and held against rotation thereon,and a head on said shank having a bead forming groove adapted to operate on the end of the flue.

2. A flue beading devic comprising a member insertable in the end of a flue to be beaded, adapted to be expanded into engagement with the flue, a pin embodied in said member projecting axially from the end of the flue, a guide block turnable on said pin, a reciprocal tool shank slidably carried on said guide block and held against rotation thereon, and a head on said shank having a bead forming groove adapted to operate on the end of the flue, said guide block being freely revoluble in either direction around said pin.

3. A flue beading device comprising an expansive member insertable in th end of a fine to be beaded, a pin projecting from said member axially thereof, a guide block having a pair of openings therein one of which is adapted to slidably receive the outer end of said pin, a tool shank reciprocally mounted in the other opening and held against rotation therein, and a head on said shank having a bead forming groove on its outer face adapted to engage the end of a flue in which the expansive member is inserted.

4. In a flue beading tool, a guide block having a pair of openings therein, a pin adapted to extend into one of said openings on which the guide block is freely turnable, means for supporting said pin coaxially with a this to b beaded, a tool shank slidable longitudinally in the other opening'in said guide block and held a ainst rotation, and a head on said shank having a bead forming groove on its outer face adapted to engage the end of a flue -from which said pin projects.

5. In a flue beading tool, a guide block having a pair of openings therein, a pin adapted to extend into one oi said openings on which the guide block is freely turnable, means for supporting said pin coaxially with a flue to be beaded, a tool shank slidable longitudinally in the other opening in said guide block and held against rotation, and a head on said shank having a bead forming groove on its outer face adapted to engage the end of a due from which said pin projects, said tool shank extending at an angle to the axis of said pin.

CHARLES S. COLEMAN.

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