US2016398A - Glassware forming machine - Google Patents

Description

Oct. 8, 1935. L. D. SOUBIER GLASSWARE FORMING MACHINE Original FiledMarch 31, 1933 ll Sheets-Sheet 1 OOOOOOOOOO INVENTOR.

ATTORNEY 1.. D. SOUBIER 2,016,398

GLAS SWARE FORMING MACHINE Original Filed March 31, 1955 ll Sheets-Sheet 2 BY WA TTORNEY Um. & 1935 L. D. SOUBKER ggmfifi GLASSWARE FORMING MACHINE Original Filed March 31, '1935 11 Sheets-Sheet s AQINVENTQR:

ATTORNEY @cito & 1935. D. SOUBIER 2,016,398

' GLASSWARE FORMING MACHINE Original Filed March 31, 1953 ll Sheets-Sheet 5 W A TTORNEY cit, 8, 1935.. L. D. SOUBIER 9 3 GLASSWARE FORMING MACHINE Original Filed March 31, 1933 ll Sheets-Sheet 6 ATTORNEY @d... L. D. SOUBIER GLASSWARE FORMING MACHINE Original Filed March 51, 1953 11 Sheets-Sheet 7 N T R. W 09. w,

ATTORNEY @dso & 1935.

11 Sheets-Sheet 8 L. D. SOUBHER GLASSWARE FORMING MACHINE Original Filed March 51, 1933 ATTORNEY 1935. 1D. SOUBIER GLASSWARE FORMING MACHINE Original Filed March 31, 1953 11 Sheets-Sheet 10 a9, INVEN TOR.

, ATTORNEY @mh & 1935.. 1 D gou 2,016,398

GLASSWARE FORMING MACHINE Original Filed March 31, 1953 ll Sheets-Sheet ll RAM MoToR Flmsume Mow Oscuunme CYLS.

BLOWHEAD BLOWHEAD t 406 I FINISHING How OPEMNG mm CLosme 469 CYLINDERS Fmrsnme MOLD LIFT CYLINDER INVENTOR.

ATTORNEY Patented Oct. 8, 1935 UNITED STATES Zilitfitt PATENT OFFIE GLASSWARE FORMING MACHINE Leonard D. Soubier, Toledo,

Glass Company, a corporation Owens-Illinois of Ohio Ohio, assignor to 17 Claims.

The present invention relates to improvements in glassware forming machines and more particularly to the finishing molds units whether constituting part of a machine in which the mold charges of molten glass are gathered by suction or dropped into the blank molds.

An object of the present invention is the provision of a novel form of finishing mold unit in which the point of application of closing pressure on the mold sections may be adjusted to meet the requirements of molds of different height. To this end the arms which are connected to the mold sections are adjustable vertically relative to the mold carrier and mold sections.

A further object is the provision of novel and unusually effective means for insuring accurate alignment of the finishing mold units with a neck mold or the equivalent blank supporting device during the blank transferring operation. To this end the finishing mold unit is provided with a centering pindesigned for projection into a downwardly facing recess formed in the carrier or other support for the neck mold.

Another object is the provision in a machine comprising a pair of finishing mold units cooperating with a single blank forming unit and movable one at a time into and out of a blank transferring position, of novel means for controlling the various movements and operations of said finishing mold units.

Other objects will be in part apparent and in part pointed out hereinafter.

The present application is a division of my ccpending application, Serial No. 663,721, filed March 31, 1933, Glassware forming machines, on which application Patent No. 1,977,742 was granted October 23, 1934.

In the drawings:

Fig. l is a side elevational view of a machine built in accordance with the present invention.

Fig. 2 is a front elevationalview thereof.

Fig. 3 is a top plan View thereof.

Fig. 4 is an elevational view with parts in section showing the finishing molds and operating mechanism therefor.

Fig. 5 is a fragmentary side elevational View showing one of the finishing molds and the raising and lowering mechanism therefor.

Fig. 6 is a plan view showing the two extreme positions of the finishing molds, one mold being at the blank transferring position and the other at the art cle discharging position.

Fig. 7 is a detail view of the valve for consubstantially ticle discharging positions.

Fig. 10 is a sectional elevational view show- 10 ing the opening and closing mechanism for one of the finishing molds.

Fig. 11 is a vertical sectional view with parts in elevation taken along the line XIXI of Fig. 10.

Fig. 12 is a fragmentary sectional view taken along the line XIIXII of Fig. 10.

Fig. 13 is a vertical sectional view taken substantially along the line XIIIXIII of Fig. 6 showing means for supplying cooling air to one of the finishing molds and corresponding bottom plates.

Fig. 14 is a sectional view of one of the blowing head units for the finishing molds.

Fig. 15 is a fragmentary sectional view of one of the motors for swinging the finishing molds.

Fig. 16 is a plan View of the base.

Fig. 17 is a side elevational view thereof.

Fig. 18 is a pipe diagram.

In more or less general terms the illustrated 3 embodiment of my invention includes a blank forming unit consisting of a suction type blank mold cooperating with the molds of two finishing mold units to which blanks or parisons are transferred for final shaping at a transferring position common to both of the finishing mold units. Finished articles are removed from the finishing molds at discharging positions individual thereto. A horizontal base IOI mounted upon wheels I02 carries said mold units and provides means whereby the entire machine may be moved toward and away from a furnace F containing a supply body of molten glass from which measured quantities or mold charges are obtained periodically.

This base lfll (Figs. 1, 2, 3, 9, 16 and 17) consists of an elongated rectangular casting supported on wheels 102 which ride upon a pair of rails 503. Side and end walls It! and I05 respectively depend upon the top Hi6 of the base. The wheels are so connected to the side walls of this base that they permit vertical adjustment of the base relative to thewheels and thereby provide for changing the elevation of the several mold units relative to the supply body of glass. The

'two finishing mold units.

' frame members which rise from the base HM,

said base in turn having air passageways therein.

By reference to Fig. 16 it will be observed that'an inlet opening I23 in one end wall of the base communicates with a substantially U-shaped horizontal passageway i2 1, the arms of which extend alongside of the longitudinal side walls I04 toward the opposite or forward end of the base. Vertical openings I25 provide communication between said passageway H24 and four tubular corner posts I26 of the main frame. A pair of vertical openings I27 in proximity to the forward end of the base H31 provides communication between said air passageway I25 and conduits which are provided in the finishing mold units as will be brought out hereinafter.

The mainframe (Figs. 1, 2, and 3) directly supports the blank mold unit and as indicated above consists of four vertical corner posts E26 rising from sleeve-like holders E28 attached to the base. A pair of inclined brace bars I30 connects the rear end of the base it! and the adjacent pair of corner posts, said bars as will appear hereinafter serving to support a timer or control unit 559. A pair of horizontal girders 633 extending lengthwise of the machine connect the corner posts I29 and support the blank or parison forming unit I34. While this blank or parison forming unit may be of any preferred type and construction andconstitutes no part of the subject matter claimed herein, it has been shown as including a horizontally disposed ram or mold carrier supporting a blank mold at one end and mounted between said girders I33 on tracks I39 for horizontal reciprocation whereby the mold is alternately placed in charging and blank transferring positions. Briefly the ram consists of upper and lower ram sections I35 and I39 respectively, and a blank mold i3! suspended from the forward end of the lower ram section. The connection between the two sections and'between the ram and'tracks I39 are such that the two sections move apart substantially vertically at one end of the path of movement of the ram to there- 7 by bring the mold into charging contact with the supply body'of molten glass iii-the furnace F whereupon the mold cavity is vacuumize d and filled with glass. An air motor M3 reciprocates the ram. By reference to the parent application herein referred to the specific construction and operation of the blank forming unit as well as the cut-off knife 396 which severs gathered mold charges from the'supply body will be understood.

Upon completion of the mold charging opera-' tion and any other operations involved in transforming the mold charge into a blank or parison, the blank is suspended bare from the neck mold I83 at the blank transferring position preparatory to being enclosed in the mold or one of the These units are ar rangeclone on each side of the longitudinal center line of the machine and so operated that they are brought one at a time to the blank transferring position for closing about the blanks. While a finishing mold is closed about a blank or parison at the blank transferring position, additional air under pressure is introduced through the neck mold to thereby completely expandthe blank to is resorted to.

therefore, the following detailed'description will be directed to one only of said units.

Each finishing mold unit includes a mold carrier 399 (Figs. 1, 2, 3, i, 5, and 6) mounted for oscillation about the axis of a pillar 384 rising vertically from the base liil. The finishing mold 395 is alternately placed in article discharging position and in a position directly beneath the neck mold, the carrier being subjected to vertical movement at one end of its path of oscillation for the purpose of bringing the finishing mold into engagement with said neck mold. The specific construction of this unit may be substantially as follows: The finishing mold 385 includes two sections pivoted to a vertical hinge pin 333 rising from a bottomplate holder 38'! or shoe which in turn is suitably mounted upon the upper side of the carrier 383. The bottom plate holder or shoe may weil be of conventional form such as shown in Patent No. 1,662,861, granted March 20, 11928, to John E. McLaughlin. tions of the mold are connected by links 338 to a pair of hollow arms 389. Vertical adjustment of the point of connection between the arms 389 and the finishing mold sections, is provided for in order that said arms may apply closing pressure at the proper point which point may vary with changes in the mold height and/or temperature and/or where the meeting faces of the mold sections for one reason or another fail to contact with each other throughout their length. For this purpose substantially the following construction The arms 389 (Figs. 1, 4, and 5) are mounted upon the upper ends of a pair of vertical sleeves 390 about theaxes of which said arms move during the opening and closing movements of the mold sections. The inner ends of the arms are formed with downwardly facing openings, the walls 39i of which are secured to flanges 3% at the upper ends of the sleeves 999. A bracket 393 (Figs. 5 and 13) holds the sleeves 393 in spaced'relation to each other, said'bracket secured to and extending horizontally from the upper of a motor carrier 399 which is adjustably mounted in vertical slideways 395 (Figs. 10 and 11). The lower ends of the sleeves 399 are slidingly fitted in vertical openings 396 in the upper wall of the maid carrier 353, said openings communicating with an air chamber 391 which in turn connected to the interior of the corresponding pillar 38 i. Such sliding connection between the sleeves 399 and the carrier 333, permits vertical adjustment of the arms 389 relative to the mold sections for the purpose stated heretofore.

The links 38% referred to heretofore as connects zontal finger 382i extending from the closed end of the yoke andin alignment with one arm of the latter. The hinge pin projects through said aper- The two sectured finger. With the link positioned as shown in Fig. 5, the range of adjustment of the arms 389 is considerable. This range, however, may be increased greatly to accommodate extremely short or tall molds. By inverting the link on the upper lug 388 very tall molds may be used. On the other hand, where extremely short molds are being used the link may be inverted and attached to the lower lug or ear as is obvious. Cooling air is constantly supplied to the interior of the pillar through the lower end thereof and by way of said chamber 39'! and sleeves 358 to the hollow arms 389. The inner vertical walls of these arms are provided with slot-like exhaust ports 393 through which the air flows for application to the surface of the finishing mold sections. Valves 35313 at the inner ends of the hollow arms 389 regulate the volume of cooling air delivered to the latter.

Adjustment of the arms 389 as referred to heretofore is effected by moving the motor carrier 394 and with it the arms 389 and sleeves 3%, vertically with respect to the mold carrier 383. This is accomplished by a construction (Figs. 10, 11, and 12) substantially as follows: A horizontal bracket 4523 on the inner wall of the motor carrier 394 has threaded therethrough a worm screw 45! which extends vertically upward through and is suitably journaled in a bearing 402. This vertical bearing 492 is integrally formed with and at the outer end of a horizontal bearing 483, the latter provided in one wall of the mold carrier 383. A bevel gear 464 fixed to the upper end of the Worm screw 49! above the vertical bearing 4E2 meshes with a pinion 445 on the inner end of an adjusting shaft 406 which is journaled in the bearing 403. The outer end of this shaft 406 is provided with an angular recess 46'! designed to receive an adjusting tool of suitable form. The motor carrier 394 and parts supported thereby are adjusted vertically by rotating this shaft 466 in the proper direction.

The opening and closing mechanism for the finishing mold may consist of a vertical piston motor 4538 (Figs. 5, l0, and 11) disposed in the lower end of the motor carrier 394 and connected by means of a piston 409 and piston rod 4H3 to a bell crank lever 44 l, the latter pivoted between brackets 452 to a horizontal hinge pin M3 and connected at its upper end through a link M4 to a slide block 4| 5. This slide block is mounted in a horizontal slideway M6 at the upper end of the motor carrier 3% and connected to the mold arms 389 by links 4!". Operation of the motor oscillates the bell crank lever 4H and thereby alternately opens and closes the mold. Operation of the motor 408 at regular time intervals is obtained by the application of air under pressure to the opposite ends of the cylinder in alternation. Branch pipes 4| 8 communicate with the opposite ends of the motor 408 and lead to a twoway valve 4!!) (Figs. 4, 6, 7, and. 8). This valve 4E9 is connected by means of a pipe 420 to the upper end of a telescopic supply pipe 42! (Fig.

4) which extends downwardly through the pillar 384 to an air conduit 422 formed in the base l6! and leads to a main supply pipe 423 for air under pressure. The control valve 9 is operated by a stop during upward movement of the finishing mold carrier to the blank transferring position to effect closing of the mold about a blank or blanks suspended from the neck mold. The position of the valve is reversed for the purpose of opening the finishing mold at the article discharging position by a device under the direct control of a timing mechanism. Such reversal of the valve 9 to open the mold, therefore, is not effected by movement of the finishing mold carriage as in the case of operating the valve to close said mold.

The construction of the valve 4!!) (Figs. '7, 8)

and operating mechanism therefor is substantially as follows. A housing 424 enclosing the rotary valve body 425 has an inlet port 426 in its upper side, an exhaust port 42'! opening to the atmosphere in its lower side, and a pair of 10 diametrically opposed outlet ports 428 connected to the pair of branch pipes MB. A pair of opposed conduiis 423 in and extending transverse to the length of the valve body 425 are positioned at regular time intervals to permit the flow of air under pressure to the opposite ends of the motor 408 in alternation. While one of the conduits 429 is in position to establish communication between the supply pipe 420 and one of the branch pipes M8, the other or exhaust conduit 429 connects the other branch pipe 4| 8 to the exhaust port 427. One end of the valve body 425 is formed with a stub shaft 436 extending through one end of the housing and carrying at its outer end an operating lever 43!. This lever is adapted for swinging movement through an angle of 90 in reversing the valve and is held in its two extreme positions against accidental movement by a spring detent 432 (Figs. 4 and 7). A trip device (Fig. 4) which swings the lever to its lowermost position upon completion of the mold lifting operation at the blank transferring station, consists of a plunger 433 mounted in a vertical guide 434 just above the valve M9 and a stationary stop 435 spaced some distance above said plunger. This stop is adjustable vertically for purpose of changing the point in the upward path of movement of the mold at which the valve 4i 9 is actuated and thereby advancing or retarding the time of closing the mold, said stop being 0 held in any adjusted position by a set screw 435 At the time the mold carrier 383 substantially reaches its uppermost position, the stationary stop 435 is engaged by the plunger 433 and causes movement of the latter vertically downward in its guide 434. Thus the valve lever 43l is swung to its lowermost position and air supplied to the lower end of the piston motor 408, thereby closing the mold about the blank suspended from the neck mold. It is evident that as a result of the more or less remote positioning of the valve 423 relative to the motor 408, operation of said motor is not effected simultaneously with opening of the valve. In the time interval between opening of the valve and operation of the motor, which takes place during upward movement of the mold carrier, the latter will have moved upward a considerable distance. Because of these operating conditions vertical adjustment of the position of the stationary stop 435 may be utilized 50 in changing the point at which the mold closes. For example, the valve may be openedat such a point that the mold carrier will have completed its upward movement before the mold starts to close. On the other hand, by adjusting the stop 435 downward, it is possible to start closing the mold at such a point that it will be almost completely closed at the time the carrier reaches its uppermost position. Reversal of the position of the lever 43I for the purpose of opening the finishing mold is effected at a predetermined time following movement of the mold to the discharging position, such movement of the mold placing the valve lever (Figs. 2, 4, '7, and 8) over an air operated plunger 431. This plunger is mounted in a vertical cylinder 433 secured to the pillar 384 and is projected upwardly by air under pressure supplied to said cylinder through a pipe 439. Flow of air through this pipe is controlled by one of two valves 439 (Fig. 18) forming part of the timer or timing mechanism 559.

Accurate alignment of the finishing molds and neck mold in order to prevent the formation of bottles and the like, having offset necks, is ob-' tained by providing an upstanding tapered centering pin 449 at the upper end of the mold carrier 383 (Figs. 4 and 5)'and an opening 44! in the lower end or the neck mold hinge pin. Upward movement of the finishing mold for cooperation'with the neck mold projects the centering pin into the opening 441 and because of the relation between the pin opening and axes of the neck and finishing mold cavities, insures accurate alignment of said cavities. Moreover, this combined centering and connecting pin functions to prevent relative movement between the and finishing molds such as might result from vibration of the machine as a whole.

Each finishing mold carrier, as brought out briefly heretofore, is mounted for oscillation about the axis of its supporting pillar 384. The pillar construction (Figs. 1, 4, 9, and 13) and connection between the mold carrier and said pillar, in addition to providing for oscillation of the mold carrier is such that the entire carrier may be adjusted vertically to insure accurate relative positioning of the adjacent ends of the neck. and finishing molds. It will be understood in this connection that ii extremely and perhaps abnormally short or long finishing molds are used, it may be'necess ary to adjust the mold carrier vertically in order that the molds will properly cooperate with the neck mold. Moreover, original setting up of the machine will in all probability involve vertical adjustment of the carrier. Ordinary variations in mold height are compensated for merely by adjusting the ram carrier vertically on the corner posts to raise or lower the neck mold a distance representing the difierence in length of the'molds being removed and those substituted. The specific construction involved may be substantially as follows: The pillar 384 which supports one of the finishing mold carriers 333 (Figs. 4 and 9) consists of a vertical cylinder 442 having an attaching flange 443 at its lower end bolted to the base IE3! and a rack bar housing 444. A sleeve 445 within the cylinder 442 extends through the opposite ends of the latter and at its upper end is suitably connected to a cap 446, the latter being telescoped over the upper end of said sleeve and resting upon the top bearing surface of an adjusting device 441. This adjusting device (Figs. 4 and 13) consists of a sleeve Q48 threaded into the upper end of the cylinder 442 and provided with a radial flange 449 at its upper end. This flange overlies the upper end of the cylinder 442 andis formed with serrations or notches which facilitate operation of the adjusting device. ,A lockplate '45l slidingly mounted upon 'the'cylinder 442 by means of bolts 452 serves to releasably secure the adjusting. device against accidental movement. A key 453 (Fig. 4) at the lower end of the sleeve 445 provides splined con nection between said sleeve and an intermediate sleeve 4.54 which is disposed between the inner sleeve .45 and the cylinder 442. The inner sleeve is movable vertically within the cylinder 4412 and sa-id intermediate sleeve 35% during adjustment.

- V of the mold carrier. A ring gear 455 at the lower end of the intermediate sleeve runs in mesh with is supported in an opening 458 provided in the base llll, said motor including a piston rod 459 connected at its outer end to the corresponding rack bar 456.

Air under pressure is supplied to the opposite ends of each motor 451 in alternation and exhausted therefrom through a pipe 460 which is suitably connected to one of a pair of valves 460 (Fig. 18) forming a part of a timer mechanism, said pipe being connected to chambers 46l which form part of cushioning devices 462 operating to decelerate the speed of travel of the finishing mold carriers as they approach the ends of their paths of oscillation' A series of comparatively small exhaust ports 463 (Fig. 15) in the wall of the motor cylinder provide constant communication between the interior of said cylinder and the chambers 461. A pipe 464 provides connection between said chamber 461 and an inlet port 465 in the cylinder head 466. A check valve 461 in the pipe 464 permits inflow of air under pressure to the motor cylinder and closes automatically wheniiow of air to the motor is discontinued.

Raising of the finishing mold carrier 383 for the purpose of placing the finishing'mold in position for cooperation with the neck mold is obtained by an elevating apparatus 468 (Figs. 5, 9, and 18) common to both of the finishing mold carriers and disposed substantially between the pillars 384. This apparatus comprises a vertical wardly from said piston, and a disk 412 adjustably connected to the upper end of the piston rod. This disk has depending from its center an attaching screw 413 threaded into a recess 414 in the upper end of said rod. A lock nut 415 is threaded on the attaching screw 413. The disk 412 is rotated tochange the elevation whenever the mold carriers 383 are raised or lowered, such adjustment being necessary in order to insure proper engagement between said disk and mold carriers. The disk 412 is adapted to enter an undercut way 416 (Figs. 4 and 5) providedon the lower side of the mold carrier preparatory to lifting the carrier and mold to the blank transferring position.

The motor 469 is operated by supplying air under pressure to its opposite ends in alternation and at regular time intervals as determined by the timing mechanism. Supply pipes 411 for air under pressure, are connected to the opposite ends of the motor 489, these pipes leading to a valve 411 forming part of. the timer 559. Cushi oning devices 418 at the opposite ends of the motor' function as do the cushioning devices described heretofore in connection with the motors which swing the finishing mold carriers. Check valves 419 in the supply pipes 411 permit uninterrupted supply of air to the motor and force the exhaust'air to flow through the cushioning devices 418. These supply pipes also function as exhaust pipes because of the construction of the control valves associated with and forming part of thetiming mechanism. 7 V As stated heretofore final expansion of the blanks or parisons in the finishing molds at the position. This cooling is supplied through blowing heads (Figs. 1, 2, 3, 14, and 18) each of which may well consist of two cups 495 telescoped one within the other and secured to the lower end of a hollow piston rod 496 depending from a piston 49'! of an air motor 498, said motor including a cylinder 499 mounted at the outer end of an arm 5% which in turn is attached to the lower side of the rack bar housing (Fig. 2). Air under pressure is supplied to the opposite ends of the cylinder 4% in alternation through pipes 50l which are connected to the valves Elli of a timer mechanism. Cooling air fiows to the hollow piston rod 496 by way of a supply pipe 592 which telescopes into said hollow rod. The air then passes through a valve port 553 to a chamber 56% provided between the two cups 495 and thence by way of ports 565 to the interior of the inner cup. A valve 506 normally closed by a spring 501, is opened upon seating of the blow head on the finishing mold as a result of relative vertical movement between the inner and outer cups, such movement causing the inner cup to unseat the valve against pressure of the spring Sill. Relative movement between the two cups is limited by screws 568 carried by the outer cup and projecting into vertical channels 593 in the outer surface of the inner cup. A coil spring 5H] disposed between radial flanges 5i i on said spring yieldingly holds the cups separated normally, yet permitting upward movement of the inner cup as indicated above.

Operation Upon completion of the blank forming operation and suspension of a blank or parison from the neck mold at the blank transferring position, one of the finishing mold carriers 383 is moved to a position beneath and in register with the neck mold and thereafter raised into engagement with said neck mold. Movement of the finishing mold carrier to a position beneath the neck mold is effected by operation of the valve 460 opening of this valve permitting flow of air under pressure to one end of the piston motor 551 which is connected through rack and pinion mechanism to one of said carriers. Movement of the carrier to said position beneath and in register with the neck mold brings it into engagement with the elevating motor 568. Immediately upon engagement between the motor 468 and the mold carrier, the valve d'i'l (Fig. 18) is opened to permit flow of air under pressure to the lower end of said motor. Thus the finishing mold carrier and mechanism supported thereon are moved upwardly to an elevation at which the finishing mold sections may be closed about the blank or parison suspended from the neck mold.

Termination of the upward movement of the finishing mold carrier 383 operates valve tripping mechanism consisting of the vertical plunger 433 and stationary pin 435 (Fig. l). This opens the valve A9 in a fashion to admit air under pressure to the lower end of one of the motors 468. While the finishing mold is closed about the blank, which incidentally has already been expanded to some degree in the secondary blank mold, a valve 305 is opened to cause movement of a plunger motor (ltd which in turn opens a valve 392 whereupon air under pressure flows into the neck mold and thence into the blank or blanks. Thus the glass is expanded to the shape of the finishing mold cavity. (If preferred, the final expansion of the blank may be deferred until the mold is moved to the discharging position. The final blow would then be cf- 5 fected through the blowing head B. Moreover, it is possible and may be preferable, to partly expand the blank at the transferring position beyond that effected in the secondary mold and finish the operation at the discharging position.) The valve M5 is then closed and the application of air to the interior of the blank discontinued. The neck mold is then opened slightly to permit downward movement of the expanded blank or blanks with and in the finishing mold.

Such opening of the neck mold actuation of a valve 193 (Fig. 18). the motor 463 is operated to lower mold unit, this being accomplished by actuation of the valve til During downward movement of the finishing mold unit a valve 262 which controls opening and closing of the body blank mold is actuated to effect closing of said mold preparatory to movement of the latter to the charging position. When the finishing mold unit has reached its lowermost position the valve 460 is again operated to cause swinging of said unit to its outermost or article discharging position. The blowing head referred to heretofore is then moved vertically downwardly so that it encloses the neck portion of the article projecting above the upper end of the finishing mold. As brought out heretofore, telescopic movement of the two sleeve sections of the blowing head opens a valve and permits flow of air under pressure to the interior of the expanded article for the purpose of cooling and setting the glass. Such lowering of each blowing head is obtained by opening the valves 50| through which air flows to the blowing head motor 498. Expansion Immediately the finishing opened for removal of the finished article. This is accomplished by opening one of the valves 339 and consequent admission of air under pressure to the motor 438. This causes upward movement; of the plunger 43! and a reversal of the position of the valve M9 whereupon air flows to the corresponding motor 408 effecting operation thereof and opening of the mold. The finished article may be removed automatically or manually, as desired.

Modifications may be resorted to within the spirit and scope of the appended claims.

What I claim is:

1. In a glassware forming machine, a finishing mold unit comprising a bottom plate holder, a carrier for the holder, a pair of mold sections resting upon said holder, mold sections to alternately open and close the mold including pivoted arms mounted for horizontal swinging movement above said carrier, arms and mold sections nection between the arms and mold sections to point at which the arms apply closing pressure to the mold sections.

2. In a glassware forming machine, a finishing mold unit comprising a mold carrier, a bottom plate holder thereon, a sectional finishing mold resting upon said holder, a pair of vertical sleeves arranged side by side in proximity to the bottom plate holder, said sleeves slidingly fitted into vertical openings in said carrier, a pair of arms carried by said sleeves, links connecting one end of the arms to the mold sections, a vertically adjustable support for the sleeves and arms mounted upon said carrier, and means on said support and carrier for swinging the arms about 10 is obtained by mold unit comprising a mold carrier, a bottom plate holder thereon, a sectional finishing mold resting upon said holder, a pair of vertical sleeves arranged side by side in proximity to the bottom plate holder, said sleeves slidingly fitted into vertical openings in said carrier, a pair of arms links and levers connecting the motor and arms.

carried by said sleeves, links connecting one end of the arms tothe mold sections, a vertically adjustable support for the sleeves and arms mounted upon said carrier, and means on said support and carrier for swinging the arms about the axes ofthe sleeves to thereby alternately open and close the mold, said connection between the arms and mold sections including reversible links by means of which the point at which closing pressure is applied to the mold sections by said arms maybe varied.

4. In a glassware forming machine, a finishing mold unit comprising a mold carrier, a bottom plate holder thereon, a sectional finishing mold resting upon said holder, a pair of vertical sleeves arranged side by side in proximity to the bottom plate holder, said sleeves slidingly fitted into vertical openings in said carrier, a pair of arms carried by said sleeves, links connecting one end of the arms to the mold sections, a vertically adjustable support for the sleeves and arms mounted upon said carrier, means on said support and carrier for swinging the arms about the axes of the sleeves to thereby alternately open and close the mold, said arm swinging means including a motor carried by said support, and

5. In a glassware forming machine a finishing mold unit comprising a carrier, a partible finishing mold thereon, mechanism for opening and closing the mold including an air operated piston motor, means for supplying air under pressure to the opposite ends of the motor in alternation, control means for regulating the supply of air including a two-way valve, means for raising and lowering the carrier, means whereby a predetermined degree of upwardmovement of the carrier operates the valve to effect closing or" the mold, and a separate device for operating the valve to effect opening of the mold.

6. In a glassware forming machine, 1 finishing mold unit including a vertically movable carrier, a-sectional finishing mold thereon, means including a piston motor for opening and closing the mold, a two-Way valve for regulating the supply of air under pressure to the opposite ends of the motor, a device positioned to 'actuate the valve when the unit is in its uppermost position forefiecting closing of the mold, and a separate device for reversing the valve when the unit is in its lowermost position to thereby open, the

mold.

'7. In a glassware formingmachine, a finishing mold unit including a vertically movable carrier, a sectional finishing mold thereon, means including a piston motor for opening and closing the mold, a two-way valve for regulating the supply of air under pressure to the opposite ends of the motor, a device positioned to actuate the valve when the unit is in its uppermost position for effecting closing of the mold, a separate device i'or reversing the valve when the unit is in its lowermost position to thereby open the mold, the firstnamed valve actuating device operable by upward movement of the unit, and a timer for ing the mold including swinging arms, means 5 connecting the arms to the mold sections, and means for changing the point of connection between the arms and mold sections to thereby change the point at which closing pressure is applied to said sections. 10 9. In a glassware forming machine, a sectional finishing mold, mechanism for opening and closing the mold, means operatively connecting said mechanism to the mold sections, and means for a changing the point of connection between said 15 mechanism and mold sections to thereby change 7 in the direction of the length of the molds the point at which closing pressure is applied thereto. 10. In a glassware forming machine, a sectional finishing mold, mechanism for opening and 0105- 20.

ing the mold, levers operatively connecting the mechanism and mold sections, and means for adjusting the point of connection between the levers and mold sections lengthwise of the latter to change the point at which closing pressure is ap- 25 plied to said mold sections.

11. In combination, a mold carrier, a mold thereon comprising a plurality of partible sections, mold arms pivoted to the carrier, means providing vertically adjustable connection between said 50 arms and sections including vertical hinge pins carried by the arms and sections, invertible links pivoted at their ends to said pins, and means for swinging the arms about their pivot to thereby open and close the mold.

12. In combination, a mold carrier, a mold thereon comprising a plurality of partible sections, mold arms pivoted to the carrier, means providing vertically adjustable connection between said arms and sections including vertical 4.0 hinge pins carried by the arms and sections, invertible links pivoted at their ends to said pins, means for swinging the arms about their pivot to thereby open and close the mold, and. means for changing the vertical spaced relation between 45 said arms and mold carrier.

13. In combination, a mold carrier, a mold thereon comprising a plurality of partible sections, mold arms pivoted to the carrier, means providing vertically adjustable connection between said 50 arms and sections including vertical hinge pins carried by the arms and sections, invertible links pivoted at their ends to said pins, means for swinging the arms about their pivot to thereby open and close the mold, each link including a 55 allel vertically spaced apertured lugs at the free 65 end of each mold arm and the corresponding mold section, the spacing between the lugs on the mold section being different than that between the other pair of lugs, vertical pins carried by said apertured lugs, a link including a yoke straddling one lug and pivoted to the corresponding pin, a finger extending from the closed end of the yoke substantially in alignment with one arm of the latter and pivoted to the other pin, and means for 7 5 swinging the arms about their pivot to thereby open and close the mold.

15. In combination, a mold carrier, a mold thereon comprising a plurality of partible sections, mold arms pivoted to the carrier, means providing vertically adjustable connection between the mold arms and sections including a pair of parallel vertically spaced apertured lugs at the free end of each mold arm and the corresponding mold section, the spacing between the lugs on the mold section being different than that between the other pair of lugs, vertical hinge pins carried by said lugs, a link connecting the pins and including a yoke adapted to straddle either of the lugs on the mold arm, a finger extending from the closed end of the yoke substantially in alignment with one arm of the latter and connected to the pin on the corresponding mold section, and means for swinging the arms about their pivot to thereby open and close the mold.

16. In a glassware forming machine, a finishing mold unit comprising a carrier, a partible finishing mold thereon, mechanism for opening and closing the mold including a, fluid operated piston motor, means for supplying fluid under pressure to the opposite ends of the motor in alternation, a valve operable to regulably control the supply of fluid to said motor, fluid operated means for raising and lowering the carrier and means for operating the valve in synchronism with move-- ment of the carrier to thereby alternately open and close the finishing mold.

17. In a glassware forming machine, a finishing mold unit comprising a' carrier, a partible finishing mold thereon, mechanism for opening and closing the mold including a fluid operated piston motor, means for supplying fluid under pressure to the opposite ends of the motor in alternation, a valve operable to regulably control the supply of fluid to said motor, fluid operated means for raising and lowering the carrier and means whereby a predetermined degree of upward movement of the carrier operates the valve toeffect closing of the mold and a separate device for operating the valve to effect opening of the mold.

LEONARD D. SOUBIER.

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