USRE12443E - Of edmund c - Google Patents

Description

No. 12,443 r REISSUED JAN. 30, 1906. B. C. SGHMERTZ, DECD.

R. LONGEKEOKER, ADMINISTRATOR APPARATUS AND PROCESS FOR MANUFACTURING WIRE GLASS.

APPLICATION FILED JAN. 6. 1906.

indents the wire-gauze in t UNITED STATES PATENT oEFroE.

THE soHMERTz WIRE GLASS COMPANY, oF-NEw roams- Y., ASSIGNEE, Br MESNE ASSIGNMENTS, or RALPH LONGENECKER, ADMINISTRATOR or EDMUND c. scH ERTz, DECEASED.

APPARATUS AND PROCESS FOR MANUFACTURING WIRE-GLASS- Specification of Beissued Letters Patent. R'eissued Jan. 530, 1906. Original No. 791,216, heart so, 1905. Application as reissue filedJ'annary 6,1906. Serial No. 294,812.

To all whom it nutty concern.-

Be it known that EDMUND C. ScHMER z, deceased, late a citizen of'the United States,

and aresident of Pittsburg, in the count of Allegheny andStateof Pennsylvania, di invent or discover a new and useful Apparatus and Process for Manufacturing Wire-Glass, of which the following is a s eclfication.

In the accompanying rawings, which make art of this-s ecification, Figure 1' is a side 'eliavation of t Fig. 2 is a plan'of same; 1g. 3 is a combmed elevation of the left-hand end and a section online 111 111 of Fig. 2. Fig. 4 is a broken edge view of a piece'of wire-glass. Fig. 5is a broken plan showing the relative situation of the wire and lass just before the second casting is rolle 'upon thesheet, and Fig. 6' a broken edge view of glass at same stage. 7

The purposes of t e invention, generally stated, are to devise a certain combination of apparatus and such changes in the process of manufacturing wire-glass as will produce a glass with brilliant top surface instead of rough and dull, also to prevent the glass be coming over-chilled in making, so that it will not be excessively hard.

Wire-glass as it is now actually manufactured in this country is made in the'followin manner: the glass is poured upon the usua casting-bed and a roller ulled over the same,

'develo ing a sheet of g ass of substantially the thickness of the final product. Back of this roller, which is sometimes termed the smoothin -roller, wire-gauze is fed upon the top of. the sheet thus formed from a chute or other suitable device. A second corrugated roller now passes over the wire-gauze and the sheet of glass'and b its ribs deeply he, body of the sheet. A third smooth-finishing roller now travels over the sheet thus corrugated and gives a finish to the to of the sheet. Some of the objections to t method are these:

The action of the three rollers chillsthe top surface of the glass excessively before it can be transferred to the annealing-kiln. The

result is that the glass becomes unduly hard and is difficult to out. It is a serious task to e ap aratus employed.

cut wire-glass when made under the best conditions, and this extra hardening aggravates the situation; but another and more 1m ortarit ob'ection to the method just descrl ed lies in t e rough to surface produced. The first or leading rol gives a smooth finish to the to of the glass; but thisis'immediatel mine. by the passage of the corru ated r0 l in the operation of 'forcin the wire own into the body of the sheet. This smooth finish is never regained, for although the third roller will efficiently smooth down any elevations onthe surface of the, glass it will not perfectly transfer the surplus glass to the depressions and fill them up with a perfect weld.- examination. therefore, of glass made by this process will disclose fine channels runn ng across the surf ace whlch has been up ermost in the process. These channels roug en the surface, making it appear dull and'luster-v less, and greatly impair its appearance. The unevenness of the surface again adds to the trouble in cutting the article, asthe diamond will not traverse it with the same ease as a polished surface.

The present invention proceeds upon a radically different theory of forming the product and secures a sheet with brilliant top surface and also one which is as readily cut as is possible with composite articles of this character. I

In the accompanying drawings, which make part of this a plication, 2 is the ordinary casting-table, aving the usual racks 3 3 on its longitudinal edges.

4 4 are the handheels, which b. pinions 5 5 advance the leading roll 6, whic ma he either smooth or corrugated, and secon ary roll 7. These rolls rest upon trangs 8 8 and preferably one-fourth inch in hei ht and which determine the thickness oft e glass, subject to a special provision'in the leading roll hereinafter described. 7

9 9 are the guides, which fix the width of.

the sheet and are ushed ahead by the rolls. 10 10 are the r0 5' connecting the right and left hand guides.

The mechanism thus fardescribedis old and well known.

product.

The 0 eration of the device is as follows:

11 is a chute for the wire 12, located in advance of the leading roll 6 instead of at the rear of the same, as is common. The leading roll 6, has its ends 13 13 recessed, preferobject had in view is to make the first sheet about one-half the thickness of the resulting A ladle l or suitable amount of. lass is oured upon the table in advance of t e lead- 1ng roll and the Ieadingroll moved forward.

In practice theleading end of the sheet thus formed is discarded as made of chilled glass, and the introduction of the wire is not commenced until about eighteen inchesof sheet has been developed. At this point the wire is fed into the hot glass in advance of the leading roller, passes beneath the same, and,

emerges at the rear side of the leading roll, pressed slightl into the top surface of a sheet one-eighth inc in thickness or pressed more deeply into the body if the leading roll is corrugated. As the forward end of the sheet moves near the rear roller a second castin is made upon the forward or dead end, so t at the imperfect ends of the two sheets may coincide', and thus economize material. The rear roller advancing crushes down this second casting and forces the same over'the wire-gauze, firmly welding the material in the second casting to the wire-gauze and the first sheet and forming a brilliantly-polished to surface to the product, leaving the Wire substantially in the center of the finished sheet, whose thickness will be the height of the rear roller above the bed' of the table. The top sheet having only one roller traversing it will not become so chilled as where two or more rollers pass over it and especially where one is acorrugated roll throwing the glass up in ridges.

. This invention is distinguished, therefore,v from the art as racticed not only by the 311- perior quailityo the product, but as well by the following features, either singly or in combination, viz: "b the introductionf of the wire in advance of t s leading roll, by the use of two rollers-in place of three or more, bythe formation of an original sheet a fraction of the desired thicknesswwith the wire in its top surface, and by the subse uent Welding thereto of a top sheet With un roken surface and by the use of two castings instead of one.

The mechanism for propelling the rollersintroducing the wire, means for determining the thicknesses of the sheets of glass, the

thickness of the sheets and their widths, as

' of saidPaten't No. 791,216, what is claimed 1. The process of making glass sheets with wire inclosed therein, consisting in simultaneously forming a layer of glass and introduc ing wire thereto, and completin'gthe sheetby formingl another layerupon the first layer of glass, t e process being carried on progressively.

2. An apparatus for making sheets of glass with wire inclosed therein, consisting of a table, a leading roll to roll a layer of glass, means to support and introduce wire to the said layer, a second roll, behind the leading roll, to form a layer of glass on the first or underneathv layer, the peri hery of the second roll being higher above t e table than that of the'leading roll, and the two rolls being far enough a art to allow the glass for the second or up or ayer to be poured between them.

3. n the manufacture of wire-glass, the combination of a table; a leading roll; means .for introducing thev wire in advance'of the leading roll and a second roll whose body is higher from the bed of the table than that of the leading'roll.

4. In the manufacture of wire-glass, the combination of a table a leadin roll with recessed ends means for intro ucing the wire in advance of the leading roll and a second roll whose body is higherfrom the bed of the table than that of the leading roll.

5. In the manufacture of' wireeglass, the combination of a table; .a leading roll; means for introducing the wire in advance of the leading roll and a second roll whose body is substantially twice as high from the level of the casting-table as is the body of the leading roll.

' 6. An improvement'in the process of manufacturing wire-glass which consistsin rolling a sheet of glass of less thickness than the ultimate product required; simultaneously force ing WIIe upon sald'sheet and forming a second sheet of glass upon said first sheet.

7; An improvement in the process of manufacturing Wire-glass which consists in rolling a sheet of lass of about half the ultimate thickness r quired simultaneously with the formation of said sheet'forcing wire in said sheet and forming a second sheet upon said first sheet.

In testimony whereof THE. SoHMERTz WIRE 'GLAss COMPANY, assignee, by mesne assignments, of the entire interest in and to the nvention set forth in the foregoing specifioation, has caused its name to be signed hereunto by its president and its seal to be afiixed, attested by its secretary, at the city of New York, the 2d day of January, 1906, and RALPH LONGENECKER, administrator of the estate of said EDM ND C. SoHMERTz, deceased, has hereunto subscribed his name, at

Pittsburg, Pennsylvania, the 3d day of J anuary, 1 906.

[1,. s] THE SCHMERTZ WIRE GLASS COMPANY,

By LEONARD I). BALDWIN,

President. Attest:

EDWARD T. MAGOFFIN.

Secretary.

RALPH LONGENECKER,

" Administrator.

"' Witnesses for Leonard D. Baldwin and Edward T. Magofiin: PHILIP S. HILL, F. N. BARBER. v Witnesses for Ralph Longenecker GEO. J. TAYLOR,

L. M. KING.

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