US1211460A - Corrugating apparatus. - Google Patents

Description

0. B. LINDQUIST. CORRUGATING APPARATUS.

APPLICATION nun MAY 27. 1914.

Patented Jan. 9,1917.

WITNESSES ma 0.. wAsnmcmrv, n. c.

0. B. L|NDQU|ST. CORRUGATING APPARATUS.

APPLICATION FILED MAY 21. 1914.

Patented Jan. 9, 191?.

INVENTOR. (W 7 ATTORNEY.

W IgSES: v [@flW canton.

- 01 1 0 B. miinoii'is'r, or mamma-ssaaswtaal ;asses-ts 'i'o emits n. eamen,

or PITTSBURGH, PENfi SYLVANIA.

oonRUGATIne Al na-ares.

Specification of Letters Patent.

Application filed May 27, 1914. Serial no. 841,258.

My invention relates to; apparatus for manufacturing steel or other metal plates into corrugated plates each having a corrugated portion surrounded by a plain, smooth, or uncorrugatedborder.

It is the object ofmy invention to provide a suitable set of rolls and mechanism cooperative therewith for forming such corrugated plates as I have described above. I may form such plates from plates having the required length for a single finished plate, or I may form a series of sets of corrugations in a long plate and cut. the latter into sections between the sets of corrugations.

It is also the object of my invention to provide on each side of the rolls suitable mechanism for preventing the plates from buckling and curving.

Other objects will appear hereinafter.

Referring to the accompanying drawings, Figure '1 is a longitudinal vertical section of an apparatus vinvolving my invention; Fig. 2, a lan of Fig. 1; Fig. 3, a plan of a portion 0 a sheet after its treatment by my invention; Fig. 4, a plan of a single corrugated plate which may be formed by my invention or may be a section formed by cutting the plate shown on Fig. 3 on the dotted lines thereon; and Fig. 5, a section of Fig. 3 on the line VV. a

On the drawings, 1 and 2 represent a pair of horizontal rolls, one vertical over the other. These rolls are mounted in the housings 3, the upper roll being adjustable by means of the screws 4 in a. manner well known. The rolls are caused to rotate at the same speed by means of the usual spur gearing connected to the necks of the rolls, one of the gear wheels 5 being shown on Fig. 2. The upper roll 1 is cylindrical and provided with a number of parallel grooves 6 in its periphery, these grooves being interrupted from the point 7 to the point 8 by leaving the roll between these points in its normal condition, that is the surface of the roll 1 between the points 7 and 8 is a part of the cylinder in which the said grooves have been formed. The lower roll2 is alsocylindrical but has thereon a series of ribs 9 corresponding in position, cross-section and length to the same characteristics of the'grooves 6 with whichthe saidribs cooperate to form corrugations-in sheets of metal fed between the rolls. The'surface of the roll 2 isleft normal between the points 10 and 11, which correspondin position tothe points 7 and 8 on the roll 1. The roll 1 has itsnormal surface preserved between the points 7 and 8, andthe roll 2 has itsnormal surface preserved between the correspondingpoints 10 and 11, so thatportions of the plates fed between the rolls will not be corrugated.

On the feeding-in or entrance side of the atented Jan. 9.1917- rollsfl and 2 I'mount the two horizontal;

rollers 12 and 13 having their pass-in line with the pass between the rolls 1 and 2. I make one of these rollers yielding'in order to accommodateplates of different thicknesses. Inasmuch as I have shown the grooves on the upper roll 1 and the ribs'on the lower roll 2, Ijhave made the upper roller 12 non-adjustable in order to prevent the plate from bending or' warping upwardly by the pressure of the ribs 9; against the same. The lower roller 13 is shown yieldingly pressed upward by the coilspring 14, its tensionbeing regulated by the screw 15. Between the rolls and the rollers -I have placed the triangular guide-blocks '16, the lower one of which may be adjusted in any convenient manner.

On the discharge side of the rolls 1 and 2 I have shown the guide-blocks 18 having between them a guidepassage in line with the passes between the rolls 1 and 2 and the rollers 12 and 13.

On the discharge side of the rolls 1 and 2 and beyond the guide-blocks 18 I arrange a number of pair of vertical rollers 19 and 20, the upper roller 20 of each pairbeing adjustable by means of the screws 21. Inasmuch as the ribs on the plates corrugated by the rolls 1 and 2 have the corrugations formed in the upper surfacethereof, I have made the rollers 19 plain cylinders'and the upper rollers 20 with corrugations corresponding to the corrugations in the plates. Preferably the rollers 19 and 20 will be driven by suitable gearing 22.

23 represents a metal plate which has been plate is fed between the rolls I and 2 ribs 24 will be pressed above the upper surface of the plate 23 for a distance corresponding to the length of the grooves 6 and the ribs 9. At every revolution of the rolls series of parallel ribs 24 will be formed on the upper surface of the plate 23 and each set of corrugations 24 will be separated from each preceding or succeeding set of ribs by a plain or fiat portion 25. The ribs and grooves have their ends tapered as shown on the drawings in order to draw the metal more gradually from the surface ofthe plate 23 and to give the corrugations a better appearance. A plate with a single set of corrugations 24 such as is shown in Fig. 4 may be formed with plain or flat portions 25 at each end. In case a long sheet in which several sets of corrugations 24 are to be made is passed through the corrugating machine, the plain or fiat portion 25 between the sets of corrugations will be severed, for example, on the lines 26 to form separate corrugated plates such as are shown on Fig. 4. The surface of the rolls beyond the ribs and grooves are left normal or cylindrical so that the plate 23 will have its sides beyond the corrugations 24 flat or in its normal condition. By means of the normal'ends of the rolls and the normal surfaces between the points-7 and 8, and 10 and 11, the plates corrugated by the rolls will have a border or margin in the normal plane of the plate 23.

I have shown the rolls 1 and 2 hollow, but I do not desire to be limited to this feature. By making the rolls hollow they may be artificially cooled by causing air or water to flow through them, it being understood that the plates to be corrugated are brought to a Copies of this patent may be obtained for good heat such as will permit the corrugations to be drawn out of the plane of the plate without damage to the plate. The necks o-r trunnions 'of the rolls may have axial openings 27 (only one being shown) through which air or water may be introduced into the same and led therefrom. Both rolls may be constructed exactly alike eX- cept that one has the ribs and the other the grooves; but I prefer to make the roll 2 with hand holes 28 in its ends so that the nuts 29 may be turned on the bolts 30 which extend through the ribs and the wall of the roll. The heads of the bolts 30 are shaped to conform to the shape of the ribs and form a part of the working surface thereof. Besides affording means for cooling the rolls or ribs and for giving access to the fasteningdevices for the ribs, the hollows in the rolls materially reduce their weight.

I claim The combination of a roll having ribs thereon, a second roll having grooves cooperating with the said ribs to form ribs on a metal plate fed between the rolls, the latter having opposed surfaces interrupting the continuity of the said ribs and grooves on the rolls, and pairs of rollers between which the plate is fed from the rolls, the rollers which lie on the same side of the plate as the grooved roll having corrugations fitting the corrugations of the plate.

Signed at Brackenridge, Pa., this 23rd day of May, A. D. 1914.

o'r'ro B. LINDQUIST.

five cents each, by addressing the Commissioner of Patents. Washington, D. G.

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