US130039A - Improvement in glass-presses - Google Patents

Description

,lys-:ALEM

improvament in Glass-Presses.

No. 30,039, PatentedMI5/30,1872..y

UNITED STATES 'PATENT @Errea .Io-NATHAN IIALEY, onv AELENTOWN, AsSIeNon To CRYSTAL eLAss con. PANY, or BIRMINGHAM, PENNSYLVANIA IMPROVEMENT |N GLASS-PRESSES.

Speeication forming p art of Letters Patent Ilo. 130,0399 dated July 30, 1872.

To whom it may concern:

Be it known that I, J oNA'rI-IAN HALEY, of

the borough of Allentown, Allegheny county,

accurately into the center of the mold or artiate on the moldslide up and down in continuous bearings or Ways, provided each with a gib-plate extending nthe length of the bearing, so arranged that it may be se't up or adjusted to takeup any Wear of the `parts which may occur; and I also make the bearing portions of the said movable parts which are in contact with the slides or` Ways and gib-plates of such lengthas to obtain elongated bearingsuri'aces, and prevent any undue Wearing of said slides. l

i In order to prevent jarring or jolting of the parts during their movement, I combine with them and the connecting-rods by which they are actuated from the crank-shaft, crank-pins so constructed that they may be at any time tightened up and adjusted to take up any loose motion, and yet in no Way interfere Withl `or `prevent the movable parts which operate directly on the mold from working perpendicularly. i

In the accompanying drawing I have represented so much ofa glass-press as is needed to illustrate the manner in'Which my invention is or may be carried into effect.

Figure 1 is a perspective view of the press. Fig. 2 is a like view of the movable parts which operate directly on the mold detached from the press. Fig. 3 is a horizontal section To this end I so construct" .the `press that the movable parts which operon an enlarged scale through the pillars of thc press. Fig. 4 is a section on au enlarged scale through the lower end of one of the connecting-rods, showin g the construction of the crank-pin. 1

The press, except in the particulars specified,

is of ordinary or suitable construction, and l shall, therefore, confine my description to those parts immediately A connected With these improvements. i

A is thc bed-plate, upon which the mold is supported. B is the spring plate; C, the crosshead; D, the yoke; and E, the adjustable plunger-rod. The general arrangement and construction of these parts, constituting the movable parts which operate directly on the mold, is similar to that of like parts in glasspresses in general use, and require no further description. The parts B C D slide in pillars or posts F, in which Ways or grooves a are formed for the reception of the ends or bearings of these parts. For the purpose above mentioned, I place in each of the Ways or slides a a gib-plate, b, extending the length of the bearings, provided preferably with a tapering iin, c, on the face contiguous to the moving parts B C D, a groove of corresponding shape being formed in the ends of these parts to receive the fin or rib. Each gib-plate is combined with screws or equivalent devices, d e, placed at intervals apart throughout the length of .the pillars, and arranged as shown. The gib-plates are held in place by screws c, and are set up against the bearings of the parts B O D by the 'screws d. By means' of these set-screws and holding-screws the gib-plates can be adjusted to take up any Wear, and to cause the moving parts to slide up and downV in a vertical plane and With perfect accuracy, v

Without any swinging or untrue motion. The bearing parts of the yoke, cross-head, and spring-plate are made of such length, as shown at l 2 3 in Fig. 2, as to prevent any undue Wear upon the slides or Ways of the pillars, thus further insuring the accuracy of movement of these parts. The. moving parts B C D are actuated to slide up and down by means of connecting-rods G, one on each side of the machine, jointed at their upperend to the yoke D, and mounted at their lower end upon Wristpins ot' cranks g on the shaft H, which shaft is operated by a lever, I, in the usual way. In ordinary glass-presses there is considerable wear at the point where the connectingrods connect with the wrist-pins, and when this wear takes place there results a jar or `iolting motion, which is extremely objectionable and prevents the accurate working of the press. I therefore construct and combine together the connecting-rods and Wrist-pins, so that any looseness of parts resulting from wear or other cause may at once be taken up. Each crank-pin h, nearest the point where it is connected with its crank g, is formed with a conical or beveled portion, i, the base or largest part being ne'Xt to the crank-arm. The other and outer portion o the pin is made cylindrical or of the same size throughout. Upon the piu I place a washer, j, of conical form or beveled to correspond with the bevel of the part t of the piu, but with its largest part outward, and between the two beveled parts z' and j I mount on the pin several thin washers, k, of metal or other material. These thin washers, as Well as the washer j, slide freely on the crank-pin. The lower end of the connecting-rod Gr has a hole formed in it to encircle the crank-pin, and this hole is beveled on each side from the center to fit upon and correspond with the oppositely-inclined or beveled surfaces of the parts t' and j. The washer .j is set up by means of a nut, l, screwing on the end of the crank-pin, so that the joint may be made perfectly tight and all rattle, jar, or jolting prevented at that point. In case of any wear, one or more of the thin washers 7c maybe removed, as required by circumstances, and the beveled washer j can then be set up closer to the part t' so as to take up any Wear or looseness of parts.

The absolute necessity of having` the movement of the parts which operate on the mold perfectly true and straight, Without any jar or jolting, renders these improvements, as applied to glass-presses, of very great value, While the parts, when necessity arises, can be repaired With the utmost facility, and with much greater economy of money and time than is practicable in repairing glass-presses of the usual construction.

Having now described my invention and the manner in which the same is or may be carried into effect, what I claim, and desire to secure by Letters Patent, is-

1. In presses for molding glass-ware, the combination, with the moving parts which operate upon the mold and the slides or ways in which thc bearing portions of said parts move and are guided, of gib-plates adj Listed and held in said slides or ways, and operating in connection with the bearings of said moving parts as and for the purposes herein shown.

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