US189351A - Improvement in the manufacture of glassware - Google Patents

Description

W. FOX.

MANUFACTURE OFGLASSWARE.

N0. 189,351. Patented April 10, I877.

- .blown vessel to form the foot or stem.

.tofore footed and stemmed glassware, wherein UNITED STATES PATENT 'Orrroa WILLIAM FOX, or wnnnnme, wnsrr VIRGINIA, ASSIGNOR or ONE-HALF HIS RIGHT TO ANDREW H. BAGGS, or nninenron'r, OHIO.

IMPROVEMENT lN-THE MANUFACTURE OF GLASSWAREIMQ Specification forming part of Letters Patent No. 189,361, dated April 10, 1877; application filed- Febrnary 15, 1877.

ed, stemmed, and other forms of glassware;

and it consists in forming the bowl or body by blowing it upon the blow-iron without the use of molds, and then ,aflixing the base, foot,

. stem, or other finishing part, by means of molten glass pressed in a mold'tlieieon, sub

stantial-lyass-hereinafter"more-"fully and a large will appear.

To enable those who are skilledin the art to which my invention appertains to fully understand its nature and make and use the same, I will briefly describe the present state of the art wherein I claim my process to be an improvement. H l

It is considered impracticable to press glassware as thin as can be done by blowing; consequently all the finer articles of were are blown,and have a foot or foot and stem formed by hand, which isnecessarily round from the rotary motion required in working. An addi tional gathering of glass is added ta the erea pressed foot or stem is'united to--a blown article or bowl, has been made'by blowing the bowl against a pressed foot or stem with the mold and foot'stationary, or'by blowing the bowl against a pressed footor stem placed on a rotary table; but all of these methods are objectionable in a greater or less degree, on account of im' rfect joints at the point of contact of the foot, and other mechanical difliculties we'll knownto'the trade,'and are very expensive,

j requiring skilled labor, tedious, and laborious. To overcome these difliculties and accomplish the same result- -viz'., of producing a blown article of v glassware with a pressedglass foot," stem, or knob in a speedy, perfect,and nomical manneris the object of my invention.

own bowl with the pressed" ;o :benished in any m nn ifi t d, an s In orderto illustrate more. fully my inveni tion I will describe the apparatus employed andmode of operation,reference being bad to the drawing, in which- Figure 1 is a front elevation of an ordinary press; Fig. 2, side elevation; Fig. 3, vertical central section; Figs. 4, 5, detail views.

' Like letters of reference refer to like parts. In the drawing, A represents the body of a press, similar to those in general use, having legs a a of suitable length to raise the press the requisite height from the door to admit of a blow-iron, with anarticle thereon, being placed in a vertical position underneath the press. B is a guide-plate or-iron-rest, made self-adjusting by means of spiral springs b b, secured to cross-piece c of the standards, and is provided with a socket, d, for. the receival of the -endof the blow-iron. D is a projecting guide-arm secured to cross-brace c. E is a foot-mold placed on, the press ready for opera-v tion. The mold is provided with a bottom plate, 1, having a beveled slot or passage-way, 70, extending from the center to theouter edge, to admit of the removalof the two articles when joined together. This plate sets imme .diately' over and parallel with a similar pas bowl thereon, ,is placed,' on thespring guiderest under the center of the mold, and forced do wn sufiicient topermit the placing of the bowl in thecavityof the-mold, where it is held. by the pressure of the springs, it being guided into position by the inclined sides of the central'opening-inthe bottom plate of. the mold. At-this stage of the operation molten glass is placed in the mold and thd plunger forced down upon it, which forms the foot and presses it upon the blown vessel-or bowlat "ration. The article is then ready to readily removed from the press by simply opening the foot-mold, the slots or passageways in the bottom plate of the mold and press permitting the article being taken out sidewise.

By my process a knob, foot, or stem of any desired shape,-such as an octagon, hexagon, squafre,-round, or each or all combined, or of any design, can be united to a blown vessel or \bowl in a very rapid, effective, and economi'c'al manner, thus snbstitutingmechanical devices for skilled labor, and saving a large percentage in the cost of producing the finer classes of ware, with the additional advantage of variety in shape and design.

The bowl can be disconnected from the blow-iron and placed under the foot-mold to receive the foot; but as the cup-foot has usually to be formed or finished afterward, being reheated or f warmed in for this purpose, I deem it best to retain the bowl on the blowiron while; pressing on the additional piece of glass.

I am aware that handles have been formed and affixed atone and the same operation upon pitcher's, lamps, ,amdsnch like handled articles, which articles '(pitcliers,\-Stc.) had previously been formed by blowing intoa mold, the same being commonly known as blow-over glassware. Tb is",.therefore, I lay no claim to, my invention relating to 'articles the body or .bo'wtof which is formed entirelylby blowing,

and without the useof a mold.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. In a machine for forming glassware, the press A, mounted upon the frame a a, and pro= vided with the slotted bed-plate cc, substain' gially as described, and for the purposes specig 2. In a machine for forming glassware, in combination with the mold E, the removable plate f, having a beveled slot or passage-way, K, extending from oenter to circumference,

substantially as. described, and for the purposes specified.

3. In a machine for forming glassware, the self-adjusting rest /B, substantially as described, and for the purposes specified.

4. In a machinefor forming glassware, in combination with the guide-rest B, the guidevarm D, substantiallyasdescribed, and for the purposes specified.

5. The process'of forming glassware, consisting in forming the body or bowl by blowing it up dn the blow-iron without the use of molds, and then affixing the base, foot, ste n, or other finishing part, by means of molten glass pressed in a mold'thereon, substantially as described.

, WILLIAM FOX.

Witnesses:

W. G. WILKINSON, UY. BATES HOWARD.

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