US1232974A - Mechanism for forming pipe-fittings. - Google Patents

Description

,I. RATEIKE. MECHANISM FOR FORMING PIPE FITTINGS.

APPLICATION FILED APR. 9,19l5- L 3%?% Patented JulyIO, 1917.

3 SHEETS$HEET II C. J. R'ATEIKE.

MECHANISM FOR FORMING PIPE FITTINGS.

Patened July 10, 1917.

3 SHEETS-SHEET 2.

APPLICATION .FIL'ED APR. 9. I915.

LMMMMWM C J RATEIKE MECHANISM FOR FORMING PIPE FITTINGS.

I APPLICATION FILED APR. 9. I915- 3 SHEETS-SHEET 3.

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IIIIIIIIIIIIIII 5 nvc'ntoz Warn-ml the cop after the first forming operation;

cnannns J. EATEIKE, or orircaeo,

ILLINOIS. ASSIGNOR '10 ANSON MARK AND CLAY- TON MARK, COPABTNERS DOING, BUSINESS AS MARK MANUFACTURING COMPANY,

OF CHICAGO, ILLINOIS.

MECHANISM FOR FORMING PIPE-FITTINGS.

Specification of Letters Patent.

Patented July m 19H.

Application filed April 9, 1915. Serial No. 20,114.

To all whom it may concern:

Be it known that 1, CHARLES a citizen of the United States, and a resident of Chicago, Cook county, Illinois,-= have invented new and useful Improvements in Mechanisms for Forming Pipe-Fttings, of which the following is a specification, reference being had to'the accompanying drawings, in which:

Figure 1 is a front elevation, partly in section, showing mechanism for forming pipe coupling parts; Fig. 2 is a section thereof, on lines IIII of Fig. 1; Fig. 3 shows a cup-shaped blank of a character suitable to be formed into a coupling nut; Fig. 4 shows Fig. 5 shows the completed nut, which needs only to be apertured before being used; Fig. 6 is an elevation showing the blank thereon and with the dies in closed position, and Fig. 7 is a section on lines VIIVII of Fig. 6.

My invention relates to mechanisms for forming pipe fittings, and is particularly adapted for the shaping of wrench seats on fittings, such as pipe coupling parts. My invention also consists in, the construction and cooperation of the various parts which I shall hereinafter describe and claim.

Referring to the drawings, in which I have shown my invention applied to forming an octagon-shaped wrench-seat on a coupling nut, Fig. 3 shows a blank A of cupshape form, which may be shaped into the form A with a thickened rim 2, as shown in Fig. 4, by any suitable means.

The blank A is then placed on a mandrel 3, the rear end 4 of which is mounted for vertical movement in the guides 5 of the frame 6. When the plunger 7 is actuated it will descend, carrying with it the blank A on the mandrel 3 until the blank is brought into contact with the lower die 8, and flat portions 9, corresponding to the flats 10, 10 10 etc," on the jaws of the plunger 7 and on the lower die, are formed thereon. The plunger 7 is then detracted and the actuating member 11 is advanced so that its inclined portion 12 will come into contact with the inclined face 13 of the guide plate 14, thereby raising the guide plate and with it the mandrel 3, which slides upwardly inthe guides 5 of the frame 6.

J. RATEIKE,

., tagon has been The actuating member 11 has attached thereto apin" .15, which seats in a slot 16 of a shift-- ingslever 17, and rotates the lever 17 as the actuating member 11 is advanced or retracted. Secured to the shifting lever'17 is a pawl 18 which cooperates with notches 19 in a ratchet wheel 20, so that when the actu-' ating member 11 is advanced it will impart motion through the shifting lever 17 and pawl 18 to the ratchet wheel 20 and the ratchet wheel will be moved forward one quarter of a revolution. The ratchet wheel 20 in turn is keyed to the mandrel 3 at 21, so that rotation of the wheel will rotate the mandrel. As the mandrel 3 has a flat space 22 thereon, the blank will be formed by the first blow of the plunger 7 with the corresponding fiat portion 23, so that, in the subsequent operations, when the mandrel is rotated it will turn the blank with it to a new striking position. As the plunger 7 again ascends for a succeeding blow, the actuating member 11 is retracted, which permits the guide plate 14 to move down so that the mandrel 3 and the blank A will again be free to move down under the plunger for a further forming operation.

It is obvious that with the blank in one position one blow or a number of blows will not serve to form a erfect octagon, as the flats 10 and 10 which are nearest a right line to the force of the blow will cause the greatest deformation in the blank and hence it must be shifted until all of the surfaces have received an equal amount of force. To this end, where as shown it is desired to form an octagon, the blank is turned onequarter of a revolution, thus presenting with each operation two new faces to be struck in the flats 10 and 10*. When the plunger has been brought down for four successive operations, and the blank has been turned with the mandrel 3 through three successive one-quarter revolutions, a perfect ocformed. The blank is then ejected and a new blank substituted. After the blank has been formed and apertured, it is ready for use. Obviously the plunger 7 and actuating member 11 are intended to be operated by automatic or other suitable means.

The terms and expressions herein used are used as terms of description and not of limitation, and I have no intention in the use of such terms and expressions of excluding any mechanical equivalent for the features shown and described but recognize that various structural modifications are possible within the scope of the invention claimed.

vertically to free it from one of said dies to permit said rotary movement.

3. In mechanisms for forming pipe fittings, a pair of relatively movable dies, a mandrel, pawl and ratchet mechanism, an actuating member adapted to move said mandrel vertically and to impart movement to the pawl and ratchet mechanism to rotate the mandrel a predetermined distance.

4. In mechanisms for forming pipe fittings, a frame, a pair of relatively movable dies mounted therein, a mandrel having a rotary and slidable engagement with said frame, a rotatable member secured to the mandrel, and an actuating member adapted to impart a limited motion to the mandrel relative to the frame and also being adapted to transmit movement to the rotary member.

CHARLES J. RATEIKE.

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