US1919177A - Machine for forming hollow glassware - Google Patents

Description

July 18, 1933. L. D. souBlER MACHINE FOR FORMING HOLLOW GLASSWARE Filed July 22, 1950 5 Sheets-Sheet 1 Julyl8, 1933. L. D. SOUBIER MACHINE FOR FORMING HOLLOW GLASSWARE Filed July 22, 1930 5 Sheets-Sheet 2 July 18, 1933. L. D.-SOUBlER MACHINE FOR FORMING HOLLOW GLASSWARE Filed July 22, 1930 5 Sheets-Sheet 3 July 18, 1933. 1.. D. SOUBIER MACHINE FOR FORMING HOLLOW GLASSWARE 5 Sheets-Sheet 4 Filed July 22, 1930 July 18, 1933. L. D. SOUBIER MACHINE FOR FORMING HOLLOW GLASSWARE 5 Sheets-She et 5 Filed July 22, 1930 Patented July 18, 1933 UNITED STATES Lnormnn n. sounrnn, or

TOLEDO, onro, nssrenon 'ro OWENS-ILLINOIS ones mm, A coaronnrron or 01110 mcnmn son roniume nomiow snnss'wm Application filed July 22,

The present invention relates to improvements in machines for forming hollow glassware and more particularly that typeembodying an annular'series of mold groups rotatable in a horizontal plane past a series of stations for the purpose of obtaining mold charges of molten glass and transforming them into finished articles.

One of the outstanding features of the present invention is the provision of means whereby the usual blank mold seams which mar the a pearance of articles of glassware, are entire y eliminated, with the result that very material improvement in the appearance of the article is obtained. In accomplishing this a; single piece body blank mold is used and in transferring blanks to the finishing molds, the body blank mold is removed from the blank,by-a sort of stripping action involving lengthwise movement of said mold relative to the blank.

Another object is the provision, in a gravity fed type of machine, of means whereby the hottest portions of the mold charges portions of the articles.

of molten glass form the finish and neck To this. end each mold group comprises body blank and neck molds o mug in opposite directions during the mold chargin o eration which involves dropping a molt? c arge of glass intothe body blank mold and later swingin the molds about'parallel horizontal axes to ring their 0 n ends together so that a portion of the mo (1 charge may be forced into the neck mold to form the-neck and finish of the article. p

A further object is the provision of novel blank formingdevices capable of ready ad- "different .types and sizes of glassware is charge a finishe Fig. 4 is a fragmentary sectional plan view justment and replacement whereb changes in the machine for the purpose 0 producing facilitated.

Other objects will be in part apparent and in Ipart pointed outQhereinafter. p n the drawings:

Fi ..1 is 'a vertical sectional elevation of one o the mold groups and. associated parts.

Fig. 2 is a front elevation thereof.

Fig. 3 is a sectional elevation similar Fig. 1 showin the blank meld inverted for the purpose 0 finishing a blank .or psrison, and the finishing mold tilted and open to dis article of glassware.

of one mold group.

1930. Serial No. seesaw.

Fig. 5 is a sectional lan taken substantially along the line V.- of Fig. 1.

Figs. 6 to 11 inclusive, are views more or less diagrammatically illustrati the various'operating positions of the mol position wherein the mold charge is about to enter the blank mold and a finished article is in the corresponding finishing mold.

Fig.7 shows the molds in an intermediate position, the blank and neck molds about to be rought together to permit the formation of a blank or parison to be completed. 1

Fig. 8 shows'in full lines the position of the molds just prior to completion of the blank and in dotted lines indicates the position of the blank mold. after the, latter has been lowered into contact withthe neck mold.

Fig. 9 shows the blankor parison completed' and attached to' the neck mold which constitutes part of.'a turnover or transfer unit.

' Fig. 10 shows the t over unit in an intermediate position 1 umedduring the blank transfer operati n. Fig. 11 shows the blank suspended from the neck mold and enclosed in the corresponding finishin mold preparatory to expansion or final s aping of said blank.

In more or less general terms my machine comprises an annular series of mold grogpe or units which may be rotated continuo y or intermittently, about a vertical axis, and thereby moved in succession past a. mold charging station and other stations at which various operations take lace in the process of transforming the mold char las's into finished articles of ow or (gravity feed typeof arrange ated in synchronism wit movement of the molds so that mold charges are severed from the supply body of lass in the feeder, at regular time interva s, and dro ped into body blankmolds as the latter arrive at and station. Each body blank mold is of such construction that it provides means for forming the body portion only of the blank'or parison, the mold being adapted for inversion following the char ing operation, to a position in register an in contact with a neck mold, preparatory to forming theneck and finish of the blank. or arisen. Vacuum isem loyed in the body b ank mold to'hold the ass in the latter during the inverting assware. A gdass feeder is of molten conat the chargin station and oper- Fig. 6 shows the mold group in charging I as will be brought out hereinafter.

operation, and in the neck mold to draw a portion of the glass from the body blank mold into the neck mold cavity (Fig 3) in completing formation of the blank or parison. Upon completion of the blank, the body blank mold is moved vertically upward, leaving the bare blank attached to and extending upwardly from the neck mold. Immediately, the body blank moldis reinverted to the position shown in Fig. 1. The connection between the body blank and neck molds units is such that while the body blank mold is being reinverted to the position shown in Fig. 1, the neck mold is swung 180 degrees about a horizontal axis, causing the blank or parison to assume a pendent position in which it is later enclosed in the corresponding finishing mold for final expansion.

More specifically the machine comprises a stationary central column 15 rising from a wheeled base 16 and rotatably supporting a mold carriage 17 upon which an annular series of mold groups or units, are suitably mounted. The central column 15, at its upper end, supports a stationary spider 18 which carries a pair of circular air and vacuum chambers 19 and 20 respectively, adapted to contain air under pressure and vacuum for use in the shaping of glass in the molds, Cams 21 and 22 are secured to the lower side of the spider 18 for actuating air pressure and vacuum control valves 21 and 22' respectively, referred to hereinafter. A cam 23 (Fig. 1) on the'spider 18 operates mechanism at regular time intervals for inverting 33d reinverting the body blank mold units The mold carriage (Fig. 1) includes a lower spider 24 encircling the lower portion of the central column 15 and carrying a ring 4 gear 25, which, together with a driving pin- 1011 26, impart rotary movement to the mold carriage 17. A sleeve 27 extending upwardly from the lower 5 ider 24, has secured to its upper end, a spi er 28, to the lower side of which the series of body blank mold units 29, referred to hereinafter, are secured.

Each mold group comprises an invertible body blank mold unit 29, an invertible neck mold unit 30 directly below the body blank mold unit, and a finishing mold unit 31 dieosed below the neck mold unit. The body.

lank mold unit 29 comprising part of the mold group includes a piston motor 34 secured to the outer end 0 a horizontal spindle 35 which extends'radially of the mold carria e 17* and is rotatably supported in space bearings 36, suspended from the uppgr spider 28. This s indle 35 isada'pted to oscillated at regu ar time intervals approximately 180 degrees to impart corresponding movement to the motor and mold t ereon and thereby alternately place the mold 32 or body blank mold (Fig.

' der.

1) in charge receiving and neck forming positions as pointed out heretofore. For this purpose a pinion 37 provided at the inner end of the spindle 35 meshes with a gear segment 38 carried by a rock arm 39 which is )ivoted between its ends to a pin 40 carried y the upper spider 28. The upper end of the rock arm 39 carries a cam roll 41 which is constantly engaged with the continuous cam 23, the latter encircling the central column and shaped to rock the arm 39 at regular time intervals and in synchronism with other operations to be described, so that the blank mold is oscillated in the desired manner during each cycle of operations.

- The piston motor 34 which carries and forms part of the body blank 'mold unit 29, extends at right angles to the axis of the spindle 35. A difierential sleeve piston 42 is mounted in the motor-cylinder 34 and has an internally threaded extension 43 projectin through the lower end of said cylinhreaded into said extension 43 is a body blank mold carrying sleeve 44 which extends completely through the differential piston 42 and c linder 34 into a guide 45 which is suitab y secured to and partially closes the upper end of the c linder 34 The blank mold which is of sing e piece construction is adapted to be moved lengthwise in removin blanks or parisons therefrom. This mold is securely, yet removably, held in the sleeve 44 by a locking device including a pair of locking fingers 46 pivoted to hinge pins 47 on a collar 48 which is threaded within the sleeve '44 for adjustment lengthwise of the sleeve. These fingers 46 are yieldingly held in their innermost positions by a coil spring 49 and in operation have locking engagement with a grooved extension 50, at

the lower end of the mold. Release of the I the body blank mold.

The body blank 'mold 1s of cup-like formation and includes a removable bottom plate 32" yieldingly held in place by a coil sprin 52 encirchng a uide rod 53 carried by said plate and exten ing 54 forming part of the extension 50. The wall of the chamber 32 is provided with an annular series of vacuum slots 55 which communicate at their outer ends with an annular groove 56 encirclin the body blank'mold,

said groove establis ing constant communication between the slots and a vacuum port 57 formed in the mold carrying sleeve 44. In mold charging position (Fig. 1) the vacuthrough a guide a Constant application of air um port 57 registers with a vacuum passageway 58 formed in the spindle 35, said passageway leading to an annular channel 59 formed in the periphery of the spindle. This channel provides constant communication between said passageway 58 and a conduit 60 leading to a valve chamber (31, said chamber communicating at regular time intervals with a chamber 62 which is connected by a pipe 63 to the stationary vacuum chamber 20 referred to heretofore. A pipe 64 connects the vacuum chamber 20 and a chamber 65 provided at the upper end of the central column 15, the latter chamber being in turn connected to any suitable source of vacuum (not shown). Constant communication between the stationary vacuum chamber 20 and the chamber 62 which is individual to the mold group, is obtained by connecting the upper end of the pipe 63 to a rotary wiper rin 66 encircling the chamber 20, the outer wall of the latter having openings 67 communicating at all times with an annular groove68 on the inner face of said ring. Individual control of the application of vacuum to the molds is ob-- tained by means of the valves 22 which con trol communication between the chambers 61 and 62. Each valve 22 is normallyheld closed by a coil spring 69 and is opened at regular time intervals by the stationary cam 22 (Fig. 1).

The differential sleeve piston 42 is adapted to be moved in the cylinder 34; at regular time intervals to change the elevation of the body blank mold in placing said mold at proper elevations for the mold charging operation and for cooperation with the corresponding neck mold in completing formation of blanks or parisons. Air under pressure is constantly applied to one side of the piston and periodically to the other side. under pressure to the lower side of the sleeve piston 42 (Fig. 1) is obtained by a supply system including a conduit 70 extending lengthwise of the spindle 35 and opening atone end into the lower end of the motor cylinder 34" and at its other end into an annular channel 71 formed in the periphery of said spindle. This channel 71 provides constant communication between said conduit 70 and a pipe 72 extending upwardly and communicating with a valve chamber 73 which in turn is connected by a pipe 74 to the air pressure chamber 19 carried by the central column'15. Air under pressure is constantly supplied to the chamber 19 through a pipe 75 which extends radially inward and forms part of the conduit leading to a suitable source of supply of'air under pressure (not shown). Relative movement between the pipe 74 and air pressure chamber 19,- without interfering with communication between said chamber 19 and the valve chamber 73 is obtained by providing an upward extension of the rotary wiper ring 66, said extension having an annular channel 76 on its inner face, overlying ports 77 in the outer wall of the chamber 19. Thus the pipe 74 is at all'times in direct communication with the air pressure chamber 19. Air under pressure is periodically applied to the other side of the sleeve piston 42 through a conduit 87 which extends lengthwise of the spindle 35, opening at one end into the upper end of the motor cylinder, 34 and at its other end into anannular channel 78 provided in the periphery of the spindle. The channel 78 constantly communicates with a pipe 79 extending upwardly and leading to a chamber 80 arranged above the valve chamber 73 and preferably formed integral therewith. A valved opening provides periodic communication between the chambers 73 and 80, the valve 21' normally being held closed by the air under pressure in the chamber 73 and a coil spring 81 encircling the valve stem 82. The stationary cam 21 (Fig. '1) referred to heretofore, opens the valve 21 at regular time intervals.

The neck mold unit 30 includes a part-il'ile neck mold 83 (Figs. 1,2, and 3) which faces upwardly while cooperating with the body blank mold in forming a blank or parison, and opens downwardly for cooperation with the corresponding finishing mold as will be apparent by reference to Figs. 1 and 3. The neck mold 83 is supported on a carrier 84 (Figs. 1, 3, and 5) which is removably .attached to the outer end of a. spindle 85 extending radially of the mold carriage and journaled in a bearing 86 carried by a slide 88 mounted for vertical movement in slideways 89 on the mold carriage 17. The neck mold sections 83 are pivoted to a vertical hinge pin 90 on the carrier. Alternate opening and closing of the neck mold is obtained by mechanism including a yoke 91 (Figs. 1, 2, and 5) slidingly mounted in radial guides 92 on the carrier 84. This yoke includes a pair of arms 93 (Fig. 1) carrying depending fingers 94, whichyupon inward movement of the yoke, engage lugs 95 on the neck mold sections for thepurpose of separating the latter. Such inward movement of the arms 93 and yoke is obtained by a cam (not shown) which engages a cam roll 96 mounted on a cross bar 97 at the outer end of the yoke. Coil springs, 98 are compressed by'inward movement of the yoke under shown) and after the roll 96 moves beyond the influence of the cam said springs 9812xpand causing engagement between the arms 93 (Fig. 1) and the neck. mold sections so that the latter are moved together, thereby again closing the neck mold. The principle of operation involved in thismechanism for opening and closing the neck mold is disclosed in Graham Patent 1,405,204,-d ated January pressure of the cam (not 31, 1922, to which patent reference may be had for additional information.

A plunger 99 individual to the neck mold 83 is adapted to be projected into said neck mold at regular time intervals to cooperate with the latter in forming the neck and finish of the articles of glassware and to provide an initial blow opening in the blanks or parisons. This plunger is actuated bypiston motor 100 mounted on the carrier 84,'said motor including a piston 101 connected through a rod 102 to said plunger. The end of the motor cylindcr 100 adjacent the neck mold is open and has direct communication with the neck mold cavity. Vacuum is applied to the neck mold cavity while the neck andbody. blank molds are positioned as shown in Fig. 3, re-

- sulting in upward movement of the piston 101, projection of the plunger 99 into the neck mold and body blank mold and downward pulling of a sufficient quantity of glass out of the body blank mold and into the neck mold to form the finish and neck of the article of glassware being produced. \Vhen the position of the neck mold 83 is reversed (Fig. 1) and the finishing mold closed about the blank, air under pressure is applied to the neck mold cavity and thence to the initial blow opening'provided in the blank or parison- Such application of air under pressure raises the piston 101 and correspondingly moves the plunger 99 so that the air may freely move intothe finishing mold.

Air under pressure and vacuum are alternately applied tothe neck mold by way of a flexible pipe 103, a conduit 104 extending lengthwise in the spindle 85 and an upstanding pipe 105 openin at its lower end into a port 106 formed in the'bearing 86, said I port leading to an annular channel 107 enend is-connected to a circling the spindle 85 and providing constant communication between the conduit 104. and pipe 105. The upstanding pipe 105 which is carried by the bearing 86, has telescopic connection at its upper end witha chamber 108 provided at the outer end of a supporting bracket 109 secured to the sleeve 27 comprising part of the mold carriage 17.

Vacuum is applied to the chamber 108 through a pipe 110 whose inner end opens into a channel 111 provided between said sleeve 27 and the central column 15, said column in turn having an opening (not shown) leading to a vacuum chamber 112 adapted to register with said channel for a predetermined period of time during each cycle of operations. Air under pressure is supplied to the chamber 108 at regular time intervals through a pipe 113 whose inner channel 114 provided between the sleeve 27 15. This channel at regular time intervals communicates by Way of a port 115 in the central column 15 with an air pressure chamand stationary column her 116-. The length of the termines the length of the period of apphcation of air under pressure to the neck mold.

As briefly pointed out heretofore, oscillation of the body blank mold unit 29 imparts a reverse oscillatory movement to the neck mold unit 30 so that said molds may occupy in alternation, the positions shown in Figs. 1 and 3. The mechanism for accomplishing this result consists of .a pair of vertically aligned spur gears 117 keyed to the spindles 35 and 85 andoperatively connected by an intermediate gear mounted on a stub shaft 119 which also provides pivotal connection between a pair of links 120 whose outer ends are suitably con nected to the spindles 35 and 85. By adjusting the position of the intermediate pin ion or gear 118, the spaced relation between the spur gears 117, and therefore the body blank and neck mold units may be changed as required by operating conditions and the type of article being produced, as will be described hereinafter. A 1) is employed to secure the links 120 and intermediate gear 118 in any adjusted position.

Each mold group includes a finishing mold unit 31 (Figs. 1 and to which blanks or parisons are transferred preparatory to final shaping. Each finishing mold unit comchannel 114 de- 118, the latter being lock bolt 121 (Fig. I

prises a finishing mold carrier 125 hinged to trark 127. This track is mounted on the base 16 and shaped to allow swinging movement of the carrier125 between blank transfer and article discharging positions. A partible finishing mold 128 is mounted on the carrier and connected through arms 129 to a vertical hinge pin 130 on said carrier. The mold is alternately opened and closed by mechanism including a slide 131 mounted in slideways 132 on. the lower spider and connected through links 133 to the mold arms129. Reciprocation of the slide 131 by means of a cam 134 operating through the roll 135 alternately opens and closes the finishing mold128 in timed relation to operations of other mechanisms. A bottom plate 136 is provided for each finishing mold. In order that finishing molds of heights may be employed, adapters 137 are provided. These adapters may be simply cast frames of different heights such as are in common use.

In operation, the mold carriage17is rotated different continuously so that the blank mold units 29 with the mold chambers '32 openi-ng upwardly, are brought in succession which contains a supply body of molten glass adapted to be discharged through the bottom outlet 139 and severed into mold charges to the mold charging station A fl ieneath a feeder 138" timed relation to movement of the molds so that a mold charge 141 accurately falls into a mold chamber 32'as the corr nding' mold group passes beneath the feede As the mold charge-settles into mold chamber-'32, vacuum is applied to said chamber by opening the. vacuum control valve 22". In this manner respect to its carrier. The valve 21" is opened for this purpose. While vacuum is applied to themold chamber 32, the blank. mold unit '29 is inverted, .due to movement of the gear segment 38, so that said unit assumes the position shown in Figs. 3 and 8. Such inverting movement of the blank mold unit, due to the connection between the gears 117 and 118, swings the neck mold unit- 30 through an angle of 180 degrees so that the neck mold 83 opens-upwardly and registers with the downwardly facing mold chamber 32. Such registration '(Figs. 3 and 8) is immediately followed'by shutting the valve 21" and efl'ective application of air under pressure to the upper end of the sleeve piston 42 resulting in downward movementof the mold chamber 32 into sealing contact with the neck mold 83. At this time vacuum is applied to the neck mold cavity with the result that a portiorii of the mold charge in the chamber '32 is drawn downwardly into the neck cavity about the plunger 99, therebyforming the finish and neck of the blank or parison.. As stated heretofore, application of vacuumto the neck mold cavity also opcrates to lift the piston 101 (Fig.

ject the plunger into the neck mold cavity and the mold chamber 321 At this point the.

air control valve121' again opens and allows application of air under pressure to the lower side of the sleeve piston 42 so that said piston immediately moves upward, This carries themold chamber 32 vertically upward leaving a bare blank B projecting upwardly from the neck mold 83. Such upward movement of the mold chamber 32 is followed by rein- ,version of 'the'blank mold unit 29and consequent swinging of the neck mold 83, as a result of which, the-blank is suspended in position to be enclosed by the finishing mold 128. The finishing mold is then closedabout the blank and has sealing contact with the neckmold 83 as shown Figs. 1, 2, and 11. Blowing air is now applied through the pipe 103 and neck mold to'the initial blow opening in the blankmold and expands the blank to the final shape of the articles of glassware being produced. Such application obvious.

3) and pro of, blowing air also lifts the plunger 99 as is At a predetermined station the neck mold is opened by a cam (not shown) which engages the cam roll 96 forming'part of the neckmold openin g'mech'anism. The finishing mold carrier,-then lowers just in advance of opening of thefini'shing mold 128' so that the finished article may be ejected from the machine.

Adjustment of the molds for the purpose of making difierent sizes of glassware may involve replacement of the mold chamber 32. This is accomplished, as stated heretofore, by separatin the locking fingers 46 and removing the c amber by a lengthwise movement through the sleeve 44. If amold chamber 32 of greater len th is to be used, it isnecessary to change t e spaced relation between the neck and blank mold units 29. and respectively, this being accomplished by loosening the locking bolt 121 and moving the neck mold and turn-over unit 30, downwardly. Such adjustment will also necessitate a longer finishin mold and a slight change 1n the elevation o the upper end of the latter.

For this purpose the adapters 137, referred to heretofore, are used. 1 p

Modific'ations may be resorted to within the spirit and scope of the appended claims.

What I claim is:

1. In a glassware forming machine, means for forming blanks comprising a body blank mold, a partible neck mold below the body blank mold, 'means for oscillating the body blank mold between a position in which said mold opens u wardly to receive a mold charge and anot er position in which 1t opens downwardl in register with and forms an extension of t e neck mold cavity, means for a plying vacuum to the blank mold cavity while said mold opens upwardly and during downward swinging movement thereof, means for applying vacuum to the neck mold while in register with the body blank mold to thereby forms neck on the blank and attach said blank to'the neck mold, means for moving the body blank mold upwardly leaving the blank extending upwardly from and attached to the neckmold, means whereb; upward swinging movement of the blan mold causes downward swinging of the-neck mold, and a finishing mold adapted to enclose the blank after the neck-mold has completed its downward swinging movement.

2; In a lassware forming machine a blank mohd, a neckmold spaced below the body blank mold,-said molds mounted for oscillation about vertically spaced horizontal axes, means for simultaneously swinging the body blank and neck molds about their axes to thereby bring the mold cavities into register with one another at times, means for applying vacuum to the neck mold cavity'while said cavities are in register, and

body

means for applying vacuum to the body blank mold during at least a portion of the time 7 the molds are not in register with one another.

3. In a glassware forming machine, the

combination of a blank forming unit including an invertible piston motor, adifierential sleeve piston forming partof said motor, a sleeve adjustably carried by the piston and 10 extending through opposite ends of the motor, a single piece body blank mold in said sleeve, and means releasably securing the mold in said sleeve. I

4. In a glassware forming machine, means for forming blanks including a motor comprising a cylinder, a differential sleeve piston mounted in said cylinder, a single piece body blank mold having its axis aligned with the axis of the cylinder and piston. and adjustable and separable connections between said body blank mold and the sleeve piston.

,5. In a glassware forming machine, the combination of a mold group, means for rotating it about a vertical axis, said group comprising a body blank mold and a neck mold spaced apart vertically, supports individual to the molds, said supports including rotary spindles, a driving connection between said spindles, means for imparting rotary motion to one of the splndles and through saidconnection to the other 'spindle to thereby alternately invert and reinvert the body blank and neck molds, said body blank mold adapted to receive a mold charge of molten glass while in one position.

means to bring said molds together with their mold cavities in register, means for applying vacuum to the neck mold while themolds are together, to draw a portion of the mold charge into the neck mold to completely form a blank, and means for expanding the blank to its final shape. 6. In a glassware forming machine, a mold group comprising a singlepiece body blank mold, a partible neck mold therebelow, a partlble finishing mold below the neck mold, supports individual to the molds, the body blank mold and neck mold supports including vertically spaced rotary horizontal spindles, gearing connecting said spindlesfand means for imparting rotary motion to one of said spindles and through said gearing simultaneously imparting rotary motion to' the other spindle, whereby the body blank mold and neck mold are simultaneously rotated about the respective axes of said spindles.

7. In a glassware forming machine,- a mold grou comprising a single piece body blank mol a partible neck mold therebelow, a par tible finishing mold below the neck mold, supports individual to the molds, the body blank mold and neck mold supports includng rotary horizontal spindles, means providmg a driving connection 'between'said spin- 65 dies whereby they may be rotated together,

I der means forimparting rotary motion to one of said spindles, and means for changing the spaced relation between said spindles without interfering with said connection between the spindles.

8. In a glassware forming machine a mold group comprising a single piece body blank mold, a partible neck mold therebelow, a partible finishing mold belowthe neck mold, means for rotating the body blank and neck molds simultaneously about vertically spaced parallel horizontal axes to thereby alternately position the neck mold for cooperation with the body blank moldand finishing mold and periodically cause the body blank mold to open vertically upward in position to receive a mold charge of molten glass, means for applying vacuum to the neck mold While the latter is in positionto cooperate with the. body blank mold to thereby draw a portion of the mold char e intosaid neck mold, means for compact-mg the glass in the body blank mold while 'the neck mold is in said position to cooperate with the body blank mold, means for moving the body blank mold vertically upward leaving a bare'blank attached to the neck mold, and means for later applying air under pressure through the neck mold to expand the glass in the finishing mold.

9. In a glassware forming machine a mold group comprising a single piece body blank mold, a partible neck mold therebelow, a partible finishing mold below the neck mold, means for rotating the body blank and neck molds about parallel horizontal axes to thereby alternately position the neck mold for cooperation with the body blank and finishing molds and periodically cause the body blank mold to open vertically upward in position to'receive a mold charge of molten glass means for applying vacuumto the neck mold while the'latter cooperates with the body blank mold to thereby draw a portion of the mold charge into said neck mold, means for movin the body blank mold vertically upward heaving a bare blank attached to the neck'mold, means for later applying air unressure through the neck mold to'expan .,.the glass in'the finishing mold, said means for rotating the body blank and neck molds including a pair of spindles supporting the molds, gears connecting said spindles, and cam controlled mechanism for imparting rotarymotion to one of said spingles and through said gears to the other spin- 10. In a glassware forming machinea mold l group comprising a single piece body blank mold, a partible neck mold therebelow, a 1 25 partible finishing mold below the neck mold, means for rotating the body blank and neck a molds about arallel horizontal axes to there- 'by alternate y position the neck'mold for cooperation with the body blank and finisharticles, the combination of ing molds and periodically cause the body blank mold to open vertically upward in position to receive a mold charge of molten glass, means for applying vacuum to the neck mold while the latter cooperates with the body blank mold to thereby draw a portion of the mold charge into said neck mold, means for moving the body blank mold vertically upward leaving a bare blank attached to the neck mold, means for later applying air under pressnrr through the neck mold to expand the glass in the finishing mold, said means for rotating the body blank and neck molds including a pair of'spindles supporting the molds, gears connecting said spindles, .cam controlled mechanism for imparting rotary motion to oneof said spindles and through said gears to the othen,spindle, and means for changing the spaced relation between said spindles without interrupting the driving connection there-between, whereby molds of different lengths may be employed. 11. In a machine for forming hollow glass articles, the combination of a rotating mold carriage, molds'thereon, mechanism for simultaneously rotating said molds about parallel axes, and means for moving one of-said molds to and from the other mold.

12. In a machine for molding hollow glass articles, the combination of parallel spindles, cooperating molds carried by the respective spindles, means for intermittently rotating one of said spindles, and gearing interconnecting the spindles by which the said rotation of one spindle simultaneously imparts rotation to the other spindle.

13. In a machine for molding hollow glass cooperating molds carried splndles, means for of sad spindles by the respective periodically rotating one through an angle of 180 degrees, thereby periodically inverting and reinverting the mold carried thereon, and gearing interconnecting said spindles by which said rotation of one spindle imparts a simultaneous rotation to the other spindle and mold carried thereby.

14. In a machine for molding glass articles, the combination of a spindle, a blank mold carried thereby open at one end to receive a charge of glass, means for periodically rotating the spindle the blank mold, a second spindle, a neck mold carried thereby, gearing interconnecting said spindles by which'rotation of the first spindle imparts a simultaneous rotation to the second spindle, and means for bringing said molds into register with each other while the blank mold is in said inverted position.

15. In a machinefor molding glass articles, the combination parallel spindles,

- mold unit, means for movilzg and thereby inverting of parallel spaced spindles,

' other unit.

16. In a machine for molding glass articles, the combination of parallel spaced spindles, molds carried by the respective spindles, gears connected to the respective spindles, intermediate gearing connecting said gears, and means for driving one of said gears and transmitting motion through said inter mediate gearing for simultaneously rotating the spindles.

17. In a machine for molding glass articles, the combination of parallel spaced spindles, molds carried by the respective spindles, gears connected to the respective spindles, intermediate gearing connectingsaid gears, means for driving oneof said gears and transmitting motion. through said intermediate gearing for simultaneously rotating the spindles, and means for adjusting one of said spindles and the connected gear toward and from the other spindle while maintaining the driving connection through said gearing '18. In a machine for forming the combination of a blank mold unitincluding a blank mold open at its upper end to receive a charge of glass, a neck mold unit comprising a neck-mold located beneath the blank mold unit, a finishing mold unit comglass articles,

prising a finishing mold beneath the neck" thereby inverting the blank mold and neck mold, -means for bringing said inverted molds together, a plunger carried by the neck upwardly into the blank mol to expand. the glass therein and form an' initial blow opening in the blank, means for withdrawing the blank mold from the neck mold, leaving a bare parison supported in the neck mold, means for then reinverting the blank mold. and neck mold and thereby swinging the bare parison downward into position to be enclosed in the finishing mold, means for cl0sing the finishing mold about the parison, and means for blowing the parison in the finish-. ing mold; i

LEONARD D. 'SOUBIERI said plunger

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