US2621422A - Drying machine for fabric and paper webs - Google Patents

Description

Dec. 16, 1952 P.I DECK 2,621,422

DRYING MACHINE FOR FABRIC AND PAPER WEBS Filed July 25, 1949 i 3 sheets-sheet 1 r" [wi t` kD U) l U5 LE I O vo L n n Dec. 16, 1952 P, DECK DRYING MACHINE FOR FABRIC AND PAPER WEBS Filed July 23, 1949 3 Sheets-Sheet 2 Dec. 16, 1952 P. DECK 2,621,422

DRYING MACHINE FOR FABRIC AND PAPER WEBS Filed July 25, 1949 s sheets-sheet 3 Patented Dec. 1.6, 1.95.2

OFFICEA DRYIN G MACHINE FOR FABRIC AND PAPER WEBS Philibert Deck, Zurich, Switzerland Application July 23, 1949, Serial No. 106,471 In Switzerland October 6, 1948 2 Claims. (Cl. 34-158) The present invention relates to a drying machine for fabric and paper webs, for example, a mould frame, with movable nozzles for the pressure-air heating of the webs to be treated. In accordance with the invention, the drying machine is provided with nozzles the lengthwise axes of which lie parallel to the fabric web and may be swivelled on pivotal axes positioned perpendicularly to the latter. The nozzles are expediently arranged in pairs symmetrically to the longitudinal axis of the drying machine and pivotable en bloc.

The invention will now be described in detail in reference to the annexed drawing, in which Fig. 1 is a cross section through a rst embodiment of a machine in accordance With the present invention;

Fig. 2 is a view thereof in plan and Fig. 3 is a lateral elevation thereof, whilst Fig. 4 shows an alternative embodiment diagrammatically and in plan.

In the drawing, I is the supporting framework of a mould frame, said supporting frame being built up of iron sections in the known manner. On both sides of the longitudinal axis A-A, and symmetrical thereto, the known clamps 2 are provided which hold the fabric web 3 in the known manner. In the longitudinal axis of the mould frame, air ducts 4, 5 are arranged below and above the fabric web, swivelling nozzles 6, with their lengthwise axes parallel to the fabric web 3 and their slot-shaped mouths located a short distance, for example 5 mm., from the fabric web, being connected to said air ducts. As shown in the drawing, the nozzles 6 are pivotable about sockets l. At their free ends the nozzles S are tted by means of pins 8 with rollers 9 guided so as to be displaceable in the lengthwise direction of the mould frame between parallel guide rails Ill, II. Said guide rails I, II are rigidly connected to the marginal rails I3 via the brackets I2 in such manner that when said marginal rails are displaced transversely to the longitudinal axis of the mould frame, the guide-rails I0, II can move to a corresponding extent.

As may be readily seen, especially from Fig. 2, the result of adjustment of position of the marginal rails I3, and with it of the guide rails Ill and II, transversally to the lengthwise axis of the mould frame, is that the nozzles to the left (Fig. 2) of the longitudinal axis are simultaneously pivoted about the sockets 'I with the consequence that the width on which the nozzles act is automatically adapted to the adjustment of the marginal rails.

Needless to say, the sets of nozzles located on ,y the right hand side of the mould frame may also, in the same manner, be actuated by means of pins 8, roller 9 and rails I0, II, so that on adjustment of the marginal rails on the rightside :.5 of the mould frame their position is adjusted to a corresponding extent.

Fig. 4 shows a section of an alternative embodiment in diagrammatic form, in which the swivelling nozzles I3 pivot on the vertical axis I4, with the result that, as in the embodiment described in the foregoing, the effective width acted upon by the current of air may be adjusted to the width of the web to be treated. The nozzles may be swivelled, for example, in a similar manner to that shown in Fig. 2, the ends of the nozzles being pivotally attached to a movable rod. The nozzles I3 are connected via the hollow pivot I4 to the duct I5, the latter in turn being connected through a duct I6 to the fan I1 the air intake cowl of which is designated I8.

What I claim is:

1. In a drying machine for fabric and paper Webs, a frame having longitudinal sides, clamping means on both longitudinal sides of said frame for holding a web to be treated horizontally cross- -wise of the frame, air ducts arranged above and below the web held in said frame and centrally of the longitudinal axis of the frame, a source of heated air under pressure connected with said air ducts, a plurality of elongated nozzles having slotlike mouths extending lengthwise of the longitudinal axis of the nozzles, said nozzles being arranged parallel to each other in a plane parallel to the web and with their mouths close to the surface of the web, means for pivotally connecting one end of said nozzles about individual vertical axes with said air ducts, said means forming connections for conducting heated air under pressure from said ducts into said nozzles to be discharged by said mouths against the upper and lower surfaces of said web, the nozzles beingT arranged in pairs with the free ends of each pair directed outwardly toward the longitudinal sides o1' the frame, pairs of spaced guide rails arranged on each longitudinal side of the frame, means for adjusting said pairs of guide rails transversely of the frame, a guide member on each free end of said nozzle and engaging the slot formed between a respective pair of guide rails, whereby upon adjustment of said pairs of guide rails the nozzles are pivotally adjusted about their ends connected with said air ducts to vary the width of the web area treated by the nozzles.

2. In a drying machine for fabric and paper webs, a frame having longitudinal sides, clamping means on both longitudinal sides of said frame for holding a Web to be treated horizontally crosswise of the frame, air ducts arranged above and below the web held in said frame and centrally of the longitudinal axis of the frame, a source of heated air under pressure connected with said 'air-'ductsa a plurality of` elongated nozzles having-fslot-like4 mouths extending lengthwise of the longitudinal axis of the nozzles, said nozzles being arranged parallel to each other in a plane parallel to the web and Withtheir mouths close to the surface of the web, means for pivotally connecting one end of said nozzles about individual vertical axes with said air=ducts, said means forming connections for conductingheated air under pressure from said ducts into saidmozzles to be discharged by said mouths against the upper and lower surfaces of said web, the nozzles being arranged in pairs with the free ends of each pair directedyoutwardlyz toward ,the longitudinal sides-'ofthe vframe; pairs oi lspaced guide vrails. arranged on each longitudinal side of the' frame, sidefrails l. `on tsaid frame having brack'ets-xedly secured'4 thereto vand 'which f. brackets carry:l said' pairs of spaced guide rails, said clamping means being mounted on said side rails, means for adjusting said side rails transversely with respect to said frame, a guide member on each free end of said nozzle and engaging the slot formed between a respective pair of guide rails, whereby upon adjustment of said side rails the nozzles are pivotally adjusted, about ',jtheir endsy f; connected Withpsaid air ductsfto varythe width of' the Web area treated by the nozzles.

PHILIBERT DECK.

" REFERENCES CITED The following references are of record in the le -of 'this patent:

vx'UNlTEDySTATES PATENTS Number Name Date 1,090,934 Metcalf et al Mar. 24, 1914 2,177,016 Brizard Oct. 24, 1939 2,330,395 vSullivan .v r; Sept.; 28, 1943 FOREGN PATENTS Number Country Date `77.00.051 France. rf-"-.Dec-2?,.1930

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