US995589A - Machine for soldering metal plates. - Google Patents

Description

H. P. A. A EIOHMANN. MACHINE FOR SOLDERING METAL PLATES.

APPLICATION FILED JAN. 15, 1910.

Patented June 20, 1911.

4 SHEETS-SHEET 1.

WITNESSES APPLICATION FILED JAN.15, 1910.

Patented June 20, 1911.

4 SHEETS-SHEET 2.

WITNESSES H. P. A. A. EIOHMANN. MACHINE FOR SOLDERING METAL PLATES. APPLICATION IiILEI) JANQM, 1910. V 995,589. I Patented June 20, 1911.

4 SHEETS-SHEET 3.

' ATZO/VEV H. P. A. A. EIOHMANN' MACHINE FOR SOLDERING METAL PLATES; APPLICATION FILED JAN.15, 1910.

995,589, Patented June 20,1911.

' 4 SHEETSSHEET 4.

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*5 l w K (34 36 34 W/TNESSES To all whom it may concern:

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.MILCHINE F02: SOLDERING- METAL ELATES.

assess.

' fipeeification of Letters was. I pm m June as, 1911,

Application filed January 15, 1910. Serial l lo. 538,295;

-Be it known that I, HEKNRY P. A. A. EIGH- MANN, a. citizen of the United States of America, residing at Corona, in the county on sheet steel.

My object is to providev superior mecha-' nism for producing such a product in the form of finished sheets especially adapted to be manufactured into fire-proof and rust proof doors, window casings etc., which by reason of the copper exterior will possess all the external attractiveness of solid bronze, and by reason of the steel interior, will also possess the strength of that material. To this end my invention consists in the peculiar features and combinations of parts more fully described hereinafter and pointed out in the claims.

In the accompanying drawings :-F1gure l, represents a side elevation of my complete machine, Fig. 2, a longitudinal section there of wherein some of the parts are shown in elevation, Fig. 3, a vertical section on an enlarged scale of that part of the machine .which supplies the acid, solder and tin to the metal sheets; Fig. 4:, a detail View of the automatic solder supplying mechanism, and Fig. .5, a transverse section through one end of the machine.

The reference numeral 1 represents a sheet of copper or bronze, and 2 a sheet of steel. 3 is a feed table'located before the receiving end of the machine. This table has two stories, the upper story being adapted to receive the sheets of copper 1, and the lower 1 story the sheets of steel. 2;

4t and 5 are feed rolls which take the sheet of steel 2 as it comes from the table and carry'it forward beneath an acid-supplying roll 6 against which it is held by an upwardly pressing roll 7 having an adjustingscrew 43. An intermediateiidler l i supports the steel sheet 2 on'lts way to the acid roll. The feed table 3 is provided with anti-friction rollers 3 3 'represents 'asupporting idler carried on arms 3. This idler supports the upper sheet 1 as it is passed from the top, story of the feed-table to the top of the acid roll 6. Said feed rolls and theacid roll and their associated parts are journaled in,a

housing 14. -The lower periphery of the acid-supplying roll 6 is 1n line with the meeting portions of the peripheries of the feed rollsd and 5, and so are the meeting peripheries of the subsequentsoldering and finishing rolls. v

A gravity roll 15 presses the coppersheet '1 down on the acid roll 6. This acidroll is their contiguous surfaces next' pass under an oscillatory solder tank .2l eccentrically -hinged at 21 tethe lower end of a vertical supply pipe 20 coming froma solder reservoir 19 above containing a supply of molten solder 19 WVhile the steel sheet 2 passing under the tank2l it tilts and supports the latter against gravity sufliciently to discharge its contents through orifices 22 in the side of the tank onto the lower" sheet.

23 is a soldershut-ofirod having a valve 25 on its crooked upper end which seats in and closes the mouth of pipe 20. Therod 23 is eccentrically hinged at its lower end 24 to the end of the oscillatory tank 21'. When the sheet steel .2 passes out from under the tank 21, and removes the support therefrom, the latter drops below the line of said sheet, carrying with it the rod 23 and closing the valve 25, whereby the supply of solder is stopped. A turn-buckle 8 in the rod 23 permits adjustment of the valve 25 on its seat. Burners 49 and 26 keep the solder in the reservoir 19 and tank 21 in molten condition. Acid is supplied to the under side of the steel sheet by an acid roll 27 operating in an acid trough 28. This is done prior to receiving a coating of tin.

29 is a tin tank adapted to contain molten tin and kept hotlrby a burner 30. Next in tin from the tank 29 and applies it to the bottom of the sheet of steel2. The upper roll of these two is heated by a perforated gas pipe 32.

' Following the position of the soldering rolls. is a series of finishing rolls 13 preceded by cleaning brushes 12' which brushes are held against the passing sheets by coil springs 45. The journals of the upper row of finishing and cooling rolls 13 are journaled in vertically movable boxes 50 which adjusting-screw 42. (not shown in Fig. 1)

hold each pair of rollers 35 adjustably down on each upper roll 13. In the present case and for illustration, four pairs of finishing and cooling rolls and their associated parts are used. The lower cooling rolls 13-rest on rollers 36, and preferably extend into depressions 34 in plate 34.

Thus constructed the o eration of the mechanism, may be briefly escribed as follows: The two sheets 1 and 2 of metal are fed simultaneously from the feed table into the machine. The lower slieet of steel is first gripped by rolls 4 and 5 which force it forward between the rolls 6 and 7. The roll 6 supplies the necessary amount of acid to the top of the said steel sheet. The iipper sheet of copper 1 is gripped between the roll 15 and the top of acid roll 6 and the mechanism is timed to move .it' forward in unison with the lower sheet- 2 and to supply acid to its under side at the same time. Thus the two contiguous sides of the sheets are sup plied with acid preliminary to pressing them together. The steel sheet is carried forward under the hinged solder tank 21 which delivers a predetermined supply of solder -to the top of'the sheet, and spreads it out as the sheet moves under the tank. Continuing the steel sheet passes over an acid roller '27 which supplies the under side of the sheet with acid preliminary to receiving the tin which comes up from tank 29. Thus the steel is protected from rust on one side by copper, and on the other side by tin. The

two sheets next pass between rolls 10 and 11 I the pressure of which should be great enough to unite them, and at the same time apply the tin, aften which the work, that is to say the united and tinned sheets, passes on through the rolls 13 which complete the cooling and finisliing operation. As soon as the steel sheet passes out from under the solder tank 21, the latter drops down, and

soldering rolls.

of its axis, and means 'for bringing sheets together after they have had the acid pulling down rod 23 and valve 25, shuts off the flow of solder from the reservoir 19 above.

Any suitable arrangement of driving gearing between the various driven rolls may be employed, that shown comprlsmg Having thus described my 1nvention,what

I claim as new and desire to secure by Let ters Patent, is: 1. A machine for uniting sheet metal plates and the like, consisting of the combination with suitable feeding mechanism, of

means located between the paths of these in- 1 going sheets, for supplying molten metal to the sheets,-solderi'ng rolls for pressing the prepared sheets together, and cooling rolls which take the. pressed sheets from the 2. In a machine of the character described, and in combination with suitable uniting rolls, feed-rolls and cooling rolls, an

. acid-supply roll located between the path of the ingoing sheets, and arranged and adapted to supply acid to the contiguous sidesof said sheets preliminary to applying the uniting medium.

3. In .a machine for uniting metal sheets and the like, a revoluble acid-applying roll, means for directing one sheet .ito engagement with the roll on one side of its axis,

means for directing another sheet into engagement with the roll on the oppositeside applied to their contiguous surfaces. I

4. In a machine for uniting m'etal sheets and the like, a hollow acid-supplying roll provided with discharge orifices. in. its periphery, and with an absorbent jacket, in combination with pressure rollers oppositely engaging its periphery, and means for 'directing two sheets respectively between the said opposite pressure rollers and the acidsupplying roll whereby the two ingoing the metal sheets are simultaneously held against the acid supplying roll and supplied with acid upon their contiguous faces.

5. In a machine foruniting metal sheets and the like, the combination with suitable feeding, soldering'and coo ing rolls, of an oscillatory solder tanksuspended in' the path of an ingoing metal sheet which tilts said tank, and discharges the solder on said sheet. i

6. In a machine for soldering metal sheets, an oscillatory solder tank operated by an ingolng sheet, and means connected with the tank for automatically shutting off the solder supply upon the Withdrawal of said sheet. 'l 7 In a machine for soldering metal sheets and the like, the combination with suitable anda tin supply tank in which one of the soldering rolls revolves.

8. In a machine for soldering metal sheets and the like, the combination with suitable feeding and cooling rolls, of a soldering tank, a tin supply tank, means for supplying a acid to the upper face of an ingoing sheet,

means for supplying acid to the lower face of said sheet, a pair of soldering rolls, and means for heating said rolls and tank.-

9. The combination of means for feeding forward a metal sheet, means for applying another metal sheet to a face-of the first named sheet and for soldering the two together, and means for applying a coating of tin to the face of the first named sheet which is opposite that to which the second sheet is united.

10.\In a machine for soldering or uniting metal sheets, an acid-supplying roller interposed between the two sheets to be united, in combination with means for holding the sheets to the roller, whereby the contiguous sides ofthe sheets are simultaneously supplied with acid preparatory to receiving solder.

In testimony whereof I aflix my signature in presence of two witnesses.

HENRY A. A. 'EICHMANN.

Witnesses ADOLF Gr. BAUSMER, GEO. A. THORMANN.

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