US1895138A

US1895138A - Glassware forming machine

Info

Publication number: US1895138A
Application number: US416129A
Authority: US
Inventors: Leonard D Soubier
Original assignee: Owens Illinois Glass Co
Current assignee: OI Glass Inc
Priority date: 1929-12-23
Filing date: 1929-12-23
Publication date: 1933-01-24
Anticipated expiration: 1950-01-24

Description

Jan. 24, 1933. L. D. SOUBIER GLASSWARE FORMING MACHINE Filed bee. 25. 1929 s Slieets-Sheec 1 III In I llllll llll Jan. 24, 1933. 1.. D. SOUBIER 1,895,138

GLASSWARE FORMING MACHINE I Filed Dec. 25, 1929 s Sheets-Sheet 2 ma! Ina/d6 Jan. 24, 1933. sou 1,895,138

' GLASSWARE FORMING MACHINE Filed Dec. 23, 1929 I e Sheets-Sheet 5 1d If- M Jan. 24, 1933. a OQBIER 1 1,895,138

GLASSWARE FORMING MACHINE Filed D66. 23, 1929 6 Sheets-Sheet 4 225? M wee/4 I QAQQW Jan. 24," 1933. D. SOUBIER 1,895,138

GLASSWARE FORMIiIG MACHINE Filed Dec. 23, 1929 S-Sheets-Sheet 5 Ll j I 1 gwoentoz Jan. 24, 1933. 1.. D. SOUBIER GLASSWARE FORMING MACHINE Filed Dec. 23, 1929 6 Sheets-Sheet 6 Patented Jan. 24. 1933 UNITED STATES PATENT OFFICE LEONARD D. SOUIBIER, OF TOLEDO, OHIO, ASSIGNOR TO *OWENS-TLLINOIS GLASS COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO oLAsswAarironmmo MACHINE Application filed December 23, 1929. Serial No. 416,129.

The present invention relates to improvements in glassware forming machlnes and more particularly that type of machine wherein suction blank molds obtain their mold charges from lass issuing from a bottom outlet opening 1n a lateral extension or forehearth on a melting tank.

An object of the present invention is toprovide a machine of the above character wherein the molds may obtain their mold charges, transform them into finished articles of glassware and discharge the finished articles from the mold while themachine rotates continuously. Another object is to provide a glassware forming machine wherein each finishing mold, in addition to'rotating with the machine, rotates about an individual vertical axis, so that it may be alternately positioned to receive parisons or blanks from the corresponding blank mold and then discharge the blanks or parisons in the form of finished Fig. 3A is an end blank mold carriers.

'Fig. 4 is a view similar to Fig. 3 showing one .blank mold approaching. the 'charge gathering position and an adjacent blank mold approaching the blank transfer position, the remaining two moldsbeing inactive.

Fig. 5 is'a detailfront elevation showing a blank mold in the position in which the mold charge is compacted.

V Fig. 6 is a detail plan view with parts in 5. section showing one of the finishing molds,

Fig. 1 is a sectional view of one head of the I elevation ofone of the part of a blank mold carrier and certain of the stationary cams and rack bars.

Fig. 7 is a sectional view with parts in elevation of a blank mold unit taken substantially along the line VIIVII of Fig. 8.

Fig. 8 is a vertical sectional view of a blank mold unit taken substantially along the line VIII'V'III of Fig. 7.

. Fig. 9 is .a horizontal sectional view-taken substantially along the line IX--I X' of Figs. 2.'and 8.

Fi 10 is a fragmentary plan view showing the b ank and neck molds 1n open position to release a blank, one of which hasbeen ex panded in one of the finishing molds.

y In more or less general terms, the machine embodying the present invention comprises an annular series of mold groups or heads which are continuously rotated about a vertical axis for the purpose of athering mold charges at a redetermineif position and transforming t ese charges into blanks or parisons and then into finished articles for ejection at a predetermined discharge station. Each mold group or head includes a partible finishing mold and a-partible suction type blank mold, the latter being disposed in a plane above the finishing mold when gathering mold charges and rotatable about a vertical axis disposed between the finishin mold and vertical axis" of themachine. u'ring such rotary movement, the blank molds alternately invert and re-invert. The blank mold has itsu perend open when 'at the axis of the .mac me (in the illustrated form'of the invention) and obtains mold charges from a supply'bod of molten glass in a container, by way of a ottom outlet opening in the latter, after which the blank mold is rotated about the vertical axis of the blank m'old carrier and simultaneousl inverted for the purpose of placing a. blanl A or pari-son in pos1t1on to be enclosed and expanded to its final shape in the finishing v mold. The table upon which each finishin mold is supported is adapted to be rotate about a vertical axis extending centrally therethrough to alternately position the mold t to receive a blank or pari'son from the blank mold and to discharge the blank in the form P g 2) is secured to the outer wall of the lower spider 18, and, as will be described hereinafter, constitutes part of mechanism for raising and lowering the finishing molds 52. A cam 23 attached to the lower side of the upper spider 17 actuates a slide valve 84 through which the application of vacuum and air under pressure to the molds is regulated and controlled. A cam 24 on the upper end of the central column 15 controls opening an closing of the blank and

neck molds

34 and 35 respectively, as will be described presblank and finishing molds supported thereently.

The mold carriage 19 (Figs. 1, 2, and 3) is rotated continuously about the central column 15 by means (not shown) operating through a vertical shaft 25 carrying a driving pinion 26 running in mesh'with a ring gear 27 encircling'the mold carriage. Thus, the mold carriage together with a series of on are rotated about the stationary central column 15 past -the several stations at wh1ch various operations on glass in the molds take place in transforming the glass into finished articles of blown glassware.

Embodied in each mold group or head is a blank or parison forming unit (Figs. 1, 2 and 7 to 10) consisting of partible blank and

neck molds

34 and 35 respectively, and a plunger mechanism 36, all of which are mounted on a rotatable blank mold carrier 28. These

molds

34 and 35 and the plunger mechanism 36 are adapted to be moved as a unit between two positions, in one of which both the neck and blank'molds are closed to receive mold charges of molten glass, while in the other position the blank mold is inverted and open and a bare blank or parison is suspended from the neck mold so that it may be enclosed and blown to its final shape in the finishing mold 52. Such positioning of the molds and plun er mechanism involves rotation of the mo d carrier 28 about both vertical and horizontal axes, movement above a vertical axis a distance of approximately 180 alternately placing the

molds

34 and 35 in charge gathering and final blowing positions and. rotation about the horizontal axis alternately inverting and reinverting the blank and neck molds so that in one position Ethe molds open upwardly and register with {the bottom outlet opening 59 in a container the standard 30 to alternatelyplace the molds in char ing and final blowing positions is accomplished through means including a spindle 62 secured to the lower end of the standard 30 and extending downwardly through the pillar 31. A pinion 63 is mounted on the spindle 62 just below the pillar 31 and runs in mesh with a mutilated gear 64 at regular time intervals. This mutilated 1 gear 64 (Figs. 3, 4, and 6) is so formed that after a mold charge has been deposited in the blank mold, a section 64 of said gear impartsrotary movement to the pinion 63, causing approximately 135 ofmovement of the blank mold about the vertical axis of rotation which carries the mold to a position A (Figs. 4 and 5) in contact with a yielding 1nclined closure plate 14 which closes the bottom of the blank mold during a blank compacting blow hereinafter referred to. The blank mold unit is Held in this position for a brief time interval during which the carriage 19 continues to rotate. At a predetermined point- B (Figs. 3, 4 and 6 a second and comparatively short section of gear teeth 64 meshes with the pinion 63 and thereby rotates the blank mold carrier 28 an additional 45 which carries the mold to a vertical position in which the axes of the blank and

finishing molds

34 and 52 respectively coincide. During the time interval between rotation of the blank mold unit" by the

gear sections

64 and 64", said unit is. ositively held against further rotation by locking mechanlsm including a collar 65 formed on the lower side of the pinion 63 and having'reentrant arcuate recesses 66 into one of which one of the lock bars 67 projects. Additional lock bars 67 (Figs. 1, 2, 3 and 4) are provided around the central column, 15 to hold the blank mold units against rotation except when the pinion 63 is in mesh with teeth of the mutilated ring gear 64. At a point spaced in a clockwise direction from the point C (Figs. 3 and 6) at which the finishing mold initially opens, a short section 64 of.

gear teeth is provided to impart a rotary movement of approximately 45 to the blank mold units. This position of the blank mold unit is maintained for a brief interval of time by engagement between one of the lock bars 67 and the collar 65, during which the mold carriage continues to rotate and the adjacent teeth 64 (Fig. 3) then meshes with the pinion 63, rotates the latter and causes the blank mold which has just moved away from the finishing mold 52, to assume a position beneath the outlet opening 59 in the molten glass container 60.

Alternate inversion and re-inversion of the blank mold unit during its rotation about the vertlcal axis of the standard 30 (Figs. 1, 2,

8 and 9) are obtained by gear mechanism ineluding a driven gear 70 mounted upon a horizontal shaft 71 journaled in bearings formed in the standard 30, said gear running in mesh with a ring gear 73 extending about the central portion of the blank mold carrier 28. A bevel pinion 74 is secured to one end of the shaft 71 and at regular time intervals is rotated one-half revolution-by a mutilated ring gear 75 formed on the upper end of a collar 72 which in turn is suitably connected to the pillar 31. The teeth on this mutilated ring gear 75 are arranged in two groups, each approximately 90 in length, and arranged at diametrically opposite points. Thus,

movement of the blank mold unit about the vertical axis of the standard 30 from the charging position over the central golum'n 15 and beneath the container 60 to a position for cooperation with the finishing mold in final formation of articles bf glassware causes the bevel pinion 74 to mesh with one of the sections of the ring gear 75 whereby the former is rotated 180 and thereby inverts the blank mold unit to the position shown in Figs. 2 and 3A. When the blank mold unit is brought to a standstill at the end of the 135 movement in a clockwise direction from the gathering position, the movement will have inverted the blank mold 135 so that its lower end is brought into engagement with the closure plate 14 referred to heretofore and shown in Fig. 5. 1

The blank and

neck molds

34 and 35 respeotively are alternately opened and closed one at a time so that, while a blank or parison is being enclosed and blown to final shape in the finishing mold, the neck mold may be retained about a portion of and supporta blank. After the neck mold 35 has opened and release a blown blank, which is immediately discharged from the finishing mold, as will be apparent hereinafter, the blank mold 34 starts its closing movement,

simultaneously with which. the neck mold closes. The mechanism by which such ope-ning and closing of the blank and neck molds are; obtained includes a pair of blank and.

neck mold slides 40 and 41 respectively mounted for reciprocation in the slideway,

32 provided within the rotary blank mold carriage 28. Incidentally, this slideway 32 and an extension 33 thereon provide supporting means for the blank and neck molds and the plunger mechanism, as well as connection between the latter elements and said rotary carriage 28. connected through arms 37 to a vertical hinge pin 39 carried by the extension 33, said arms being in turn connected through links 46 to j the blank mold slide 40. The neck mold sectionsare supported on the hinge in 39 and connected thereto by arms 38 which in turn are connected through links 45 to the neck mold slide 41. Theseslides 40 and 41 are yieldingly connected together by a rod 42, one endof which is rigidly connected to the blank moldslide 40, while its other end is freev to slide lengthwise in a guide opening formed in the neck mold slide 41. A 'coil spring 43 encircles the rod 42 and serves to yieldingly hold the slides in their maximum spaced relation. Except during the final blowing operation, the blank mold slide 40 (Fig. 2) is held in a position shown in Fig.

'43, resulting from such positioning of the blank mold slide40, the neck mold slide 41 is held in its outermost osition whereby the neck mold is' yielding y held closed. A

spring pressed detent 32 (Figs. 1 and 2) carried by the slideway 32 projects into a recess 40 when the blank mold slide is in a position shown in Fig. 1. This detent 32 operates to hold the blank and neck molds closed 'from the time said molds close just after initial discharge of finished articles. from the finishing mold until said blank and neck molds start their re-inverting movement. This latter movement onthe part of the blank and neck molds brings into opera. tion mechanism including the cam roll 48 and bayonet slot 50 which positively .holds the blank and neck molds in closed position pre-.. paratory to gathering a mold charge.

The mechanism for positively holding the blank and neck molds closed and operating apart from said detent 32 includes an arm 47 I formed at right angles to and on one end of the blank mold slide 40 and carrying a cam roll 48. This arm 47 extends radially through a slot 49 formed in the rotary carrier 28 (Fig. 2), said slot extending lengthwise of, the carrier near one end thereof. A bayonet slot 50 is formed in the bearing sleeve 29 and for a greater part extends circumferenfially of the latter, terminating at one end in a notch 50 which, during opening of the neck and blankmolds, necessarily registers with the slot 49 in the rotary carrier 28. The

cam roll 48 extends through the bayonet slot The blank mold sections are" closed. Such position of the cam roll is maintained except during the period of time in WlllCl'l the blank forming unit is inverted and cooperates with the finishing mold 52 in final shaping of an article of glassware, at which time the notch or recess 50 and the slot 49 (Fig. 2) are brought into register with each other so that the cam roll 48 may move radially inward under pressure of a coil spring 51. Radial inward movement of the cam roll 48 and blank mold slide 40 therewith under influence of the coil spring 51 is controlled by a stationary continuous cam 24, which is so shaped that the cam roll moves inward a short distance during rotation of the mold group about the central column 15, and the blank mold is thereby opened a predetermined extent while the neck mold remains closed for cooperation with the finishing mold. After the blank has been completely expanded, the blank mold slide 40 moves further inward a short distance and carries with it the neck mold slide 41 opening the neck mold 35 and leaving a blown article entirely supported in the finishing mold. This stationary cam 24 (Figs. 1, 2, 3, 4, and 6) is for the greater part spaced uniformly from the axis of rotation of the mold carrier and is so positioned that it holds the cam roll 48 as shown in Fig. 2 whereby the blank mold 34' is opened while the neck mold remains closed over and in register with finishing mold. An angular portion 24 offset inwardly permits the cam roll 48 and blank slide40 to move radially inward from the position shown in Fig. 2 to that shown in Fig. 10 under influence of the expansion spring 51 so that the neck mold slide 41 will be moved radially inward and thereby open the neck mold. At this point the finishing mold 52 is lowered, for a purpose and in a manner pointed ou't hereinafter. Both the blank and neck molds are closed immediately after the finishing mold has opened and ejected the completed article into a trough 109, such closing being effected by an angular portion 24 on the cam 24 of such dimensions that it moves the blank mold slide 40 to the position shown in Fig. 1 wherein the detent 32 projects into the recess 40 and thereby locks the blank and neck molds closed. With initial inverting movement of the blank and neck molds, the cam roll 48 again enters the circumferentially extending portion of the bayonet slot 50 sothat the latter positively holds the blank mold slide 40 against movement lengthwise of the blank mold carrier and therefore. prevents premature opening of said molds. A cam 24 fixed to the cam 24 in proximity to "the position at which. the blanks are enclosed in finishing molds operates to pull the blank mold slide 40 radially inward a suflicient distance to release the slide from influence of the detent 32* so that the coil spring 51 will be free to actuate the slides 40 and 41 in a fashion determined by the contour of the cam 24.

The plunger mechanism 36 (Figs. 1 and mold cavities as will be described later, the.

plunger 56 is projected into the neck mold to form an initial blow opening in the blank or parison and cooperate with the neck mold in giving proper form to the finish or upper end of the article of glassware being produced. Such projection of the plunger into the neck mold results from the application of vacuum to that portion of the cylinder between the piston and neck mold simultaneously with application of vacuum to the blank and neck molds in a manner described in detail presently.

In gathering mold charges, the neck and blank m'old cavities, as well as that end of the plunger cylinder 54 adjacent the neck mold, are vacuumized-and the plunger 56 1s thereby projected into the neck mold, as ust stated, and a predetermined quantity of molten glass is drawn into the blank and neck mold cavities, the blank and neck molds thus serving as a suction gathering cup. A cutoff knife 61 severs the mold charges from the the blank and neck molds to the transfer 130- sition, the air under pressure is applied through the inner end of the cylinder 54 and neck mold 35 for the purpose of compressing or compacting the glass forming the blank or parison. The closure plate 14 (Fig. 5), closes the mold during this compacting operation.

After the finishing mold 52 has enclosed the blank or parison, air under pressure is again introduced through the neck mold 35 into initial blow opening in the parison and thereby expands the latter to its final shape in the finishing mold. Such application of vacuum and air under pressure is obtained by a construction substantially as follows :-The air and vacuum chambers 20 and 21 (Figs. 1 and 2) in the lower spider 18 are in constant communication with a pair of annular air and vacuum chambers 80 and 81 in the lower portion of the rotary mold carriage 19, said last named chambers provided with upward ly opening outlet ports 82 and 83 individual to the mold groups and leading to a control valve 84. This slide valve 84, whose movement is controlled by the stationary cam 23 carriage 19, the latter chamber constantly communicating with an axial passageway 89 formed in the spindle 62. This passageway 89 (Figs. 1, 2, 8 and 9) provides part of a common conduit for air and vacuum which are applied in alteration to the molds, and at its upper end opens into a lateral passageway 90 which in turn communicates withthe lower end of. a vertical conduit91 extending alongside of the standard 30. The

conduit 91 leads upwardly to a passageway 91 in the bearing 29 and thru this passageway to an annular chamber 92 formed between abutting circumferential flanges 93 on one end of the blank mold carrier 28 and bear ing 29, said chamber in turn opening through a port 94 in the flange on the mold carrier 28 into one end of a pipe 95 which leads to the motor cylinder 54 this pipe opening into the latter at a point between the piston 55 and neck mold 35. The cam 23 which actuates the valve 84 (Figs. 1, 2 and 6) is of such form that during movement of a mold group from point C to point D in a clockwise direction, the valve '84 is positioned by means of the angular portion 23 to shut ofl communication between both'the air and vacuum ports 82 and 83 and the pipe 86. During movement of said mold group between points D and E, the blank mold 34 is positioned beneath the bottom outlet opening 59 (Fig. 2)

and the valve 84 is moved by the angular portion 23 to the position shown in Fig. 2 so that the vacuum is applied to the neck and blank mold cavities and to the motor cylinder, the latter forming part of the plunger mechanism. It is understood that prior to or simultaneously with application-of vacuum to the mold cavities, the open end of the blank mold is brought into sealing contact with molten glass in the outlet opening 59. Thus, the mold charges are gathered. The

cutoff knife 61 is common to all the molds and severs the mold charges from the supply body of molten glass. During movement of the mold carriage between points E and F, the valve 84 is so moved by means of the angular portion 23 on the cam 23that.

air under pressure is supplied to the molds for the purpose of compacting the glass therein. This occurs while the mold is over the closure plate 14 as shown in Fig. 5. The anfinishing mold 52 closes about the parison while moving between points F and G. Final blowing air is supplied to the finishing mold during movement thereof -between .7

points G and C in a clockwise direction as a result of the angular portion 23 of the cam 23'moving the valve 84 to cause register of the port 82 and chamber 87 in the valve.

Each mold group includes a finishing-mold unit 100 arranged in a plane below the blank mold unit and spaced radially outward from the vertical axis of rotation of the latter on the mold carria e 19. The mold carrier 101 (Figs. 1, 2, 3 an 4) is supported at the upper end of a spindle 102 which is fitted into a sleeve 103 journaled in a vertical bearing 104 formed in the mold carriage 19. The finish- ;ng mold carrier 101 comprises upper and lower sections 105 and 106 respectively connected together by toggle links 107, said hnks being adjustable by means of screws 108 operatively connected together by gears 108 to change the spaced relation between said sections 105 and106 and thereby correspond- 1 ingly vary the spaced relation between the upper section 105 and the neck molds 35. Thus, finishing molds of varying heights may be employed. Also, snug contact between the finishing and neck. molds may be assured by providing this adjustment. The upper section" 105--- which directly supports the partible finishing mold 52 is provided at one side with an inclined troug mounted in a slideway 114 on the lower side.

of the upper section 105 and connected through anarm 115 and links 116 to the mold or chute 109 into which finished articles of blown glassware are deposited at arms 111. By moving this slide'113 back and forth in the slideway 114, the mold 52 is alternately opened and closed. Incidentallyf this slide 113 controls raising and lowering o the bottom plate 110, in that the latter is pivoted to the upper section 105 and carries a. cam roll 117 which rides upon the upper face of the slide 113 during the riod in which the bottom plate is in position to cooperate with the finishing mold. After the finishing mold. 52 is opened and it is desired to tilt the bottom plate 110 to thereby deposit a finished article in the trough 109 the slide 113 is moveda sufiicient degree to allow the bottom late to tilt to the position shown in Fig. 1. uch movement of the slide 113 is obtamed by rotary cam 118 connected throu h a cam roll 119 to the slide and mounted on t e upper pinion 122 keyed to the shaft, said pinion adapted to mesh with a multilated gear 123 at regular time intervals. During the time intervals between the periods of rotation of the shaft 120, it is positively held against rotary movement and thereby secures the finishing mold in closed position, by means of lock bars 124 (Figs. 4 and 6) mounted just below the mutilated gear 123 and adapted to project into reentrant arcu'ate recesses in the periphery of a collar which is secured to the lower side of the pinion 122 as shown in Figs. 1 and 2.

The finishing mold table is alternately ositioned as shownin Figs. 1 and 2 so tha in one 109 aces inwardly and the finishing mold 52 may close about a blank or parison suspended from the neck mold 35. In this position, the outer end of the trough or chute 109 is closed by a vertical wall 126 which extends entirely around the finishing mold table and serves to prevent discharge of articles from the chute except when the latter is positioned as shown in Fig. 1. A notch or recess 127 is formed in the upper outer portion of the wall 126 for register with the outer end of the trough 109 when the latter is positioned as shown in Fig. 1. Thus, articles may be discharged from the chute 109 into any suitable receptacle. For the purpose of--alternately positioning the finishing mold carrier 105, as shown. in Figs. 1 and 2, a pinion 128 is secured to the lower end of the sleeve 103 and at regular time intervals runs in mesh with a stationary rack .bar 129 (Figs. 2 and 6) which is fixed to the periphery o the lower spider 18. In a plane below thls rack bar 129, a lock bar 130 is secured to said spider and cooperates with a collar 131 of the same form as the collar 125 in holding the sleeve 103 andfinishing mold table 105 against rotation, said collar being suitably secured to the pinion 128.

Each finishing mold table is adapted to be alternately raised and lowered for the purpose of moving the finishing mold 52 into engagement wit the neckmold 35 when the blank or parison is first enclosed in the finishin mold and to lower the finishing mold after the final blowing operation has taken place and the neck mold opened, so that upon 0 ening of the'finishing mold, and tilting of t e bottom plate 110, the upper end of a finished article being discharged will not strike the neck or blank mold parts. Such raising and lowering of the mold table 105 is obtained by mechanism including a bell osition the discharge chute or trough crank lever 131 pivoted upon a horizontal hinge pin 132 suitable mounted on the lower side of the mold carriage 19. One end 133 of this bell crank lever carries a cam roll 134 which runs upon a continuous cam 135 secured to the lower spider 18. The other end of the bell crank lever 131 is in the form of a fork 136 whose arms carry rollers 137 contacting with a circular bearing surface 138 on the lower side of the finishing mold table 105. The cam 135 is provided with angular portion 135 (Fig. 6) which rocks the bell crank lever 131 and lifts the finishing mold table 105 a predetermined distance so that when the mold closes about a parison suspended from the neck mold, such neck and finishing molds will properly contact with each other. An angular portion 135 adjacent point C (Fig. 6) on the cam 135 allows the bell crank lever 131 to resume its former position and thereby lower the finishing mold 52 after the neck mold 35 has opened.

For the purpose of obtaining satisfactory operating conditions in so far as the spaced relation etween theiblank molds 34 and the bottom outlet opening 59 in the molten glass container is concerned, provision is made for raising and lowering that portion of the central column supporting the mold carriage.

This is accomplished by telescoping the upper section 15 of the stationary column over the lower section 15 and providing a series of threaded rods 139 depending from the lower side of the spider 18 and threaded in spindles 140. These spindlesare journaled in vertical bearings 141 on the base 16 and are adapted to be rotated through a train of gears 142 to which motion is imparted by a crank 143. Sprockets 144 secured to the upper ends of the spindles and connected together by a sprocket chain 145 provide means whereby the several threaded rods 139 may be simultaneously raised or lowered corresponding degrees and .thereby insure uniform raising and lowering of all parts of the machine.

From time to time, it is necessary to discontinue operation of the machine for brief intervals during which there should be no interruption to the usual flow of glass through the bottom outlet 59 in the container 60. In the present disclosure, the glass may fiow in a stream through the hollow central column into a suitable receptacle (not shown) arranged beneath the machine. In order that this stream of glass may be to some extent chilled before reaching the receptacle, a spray 146 is arranged in the upper end of the column comprising an annular chamber formed with a series of perforations 147 through which Water or other cooling medium may be discharged onto the stream of glass flowing through the central column.

Briefly reviewed, the operation of the machine involves continuous rotation of the mold carriage about the central column 15, said carriage carrying with it both the blank and finishing mold units. In one positlon (Figs. 1 and 3), the blank mold is positioned beneath the bottom at the opening 59 and gathers its mold charge by suction from the supply body of glass in the container 60.

Shears 61 sever the mold charge from the supply body. This mold 34 is then rotated in a clockwise direction about the axis of the- ,standard 30 and simultaneously inverted a air is applied to the upper end of the blank through the neck mold for the purpose of compacting-the glass and completely shapzng the blank. The blank mold then resumes its .inverting movement until it occupies a vertical position as shown in Fig. 3A. Immediately the blank mold 34 opens, leaving the bare blank or parison suspended from the neck mold 35. During the compacting blow, while the blank mold occupies the position shown in Fig. 5, the finishing mold table 105 is lifted to the elevation shown in Fig. 2, so that theupper end of the finishing mold is in the same plane as the lower face of the neck mold when in the position shown in Fig.

3A. The finishing mold is now closed about the blank and immediately or after a period of time during which reheating of the blank in the finishing mold takes place, compressed air is introduced through the neck mold 35 for the purpose of expanding the blank against thewalls of the finishing mold cavity.

As the molds approach the oint C (Fig. 6) in a clockwise direction, t eneck mold 35 is opened and the finishing mold table 105 lowered. This latter movement is immediately followed by opening of the finishing mold 52 and tilting of the bottom plate 110 (Fig.

3), thereby discharging a finished article into J the trough or chute 109, as previously described. The blank mold is immediately closed and rotated approximately 45 about the vertical axis of the standard 30, as shown at the right of point C (Figs. 4 and 6), and

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

What I claim is:

1. In a glassware forming machine, the combination of an annular series of mold groups, means for continuously rotating the mold groups about a vertical axis, each mold group including a partible finishing mold, a partible blank mold, means for rotating the blank mold about a vertical axis disposed between the finishing mold and axis of rotation of the mold groups to alternately place the mold in charge gathering and blank transfer positions, means for alternately inverting and reinverting'said blank mold during rotation thereof, whereby it opens upwardly at the charge gathering position and downwardly at the blank transfer position, means for delivering mold charges to the blank mold at the charging position, and means for trans 'ferring blanks to the finishing mold at the transfer position.

2. In a glassware forming machine, the

combination of a stationary central column, a mold carriage rotatably supported thereon,

an annular series of mold groups mounted on said carriage, means for continuously rotating the mold carriage and mold groups supported thereon, each mold group comprising a partible finishing mold, a blank forming unit comp-rising a blank mold carrier rotatable about a vertical axis disposed between the finishing mold and central column, a suction blank mold mounted on said carrier, means for periodically imparting rotary movement to the carrier to alternately place the blank mold in charge gathering and blank transfer-positions, means for applying vacuum to the blank mold at the charge gatherng station, and means for alternately invertmg and remvertmg the blank mold during rotation of said carrier, whereby said mold opens downwardly in the blank transferposit1on and upwardly in the charging position.

3. In a glassware forming machine, the combination of a rotary mold carriage, means for continuously rotating said car riage, an annular series of mold groups mounted on the mold carriage, each group comprising a partible finishing mold, a partible blank mold, rotatable about a vertical axis spaced radially inward from the finishrng mold, means for moving the blank mold about said axis in an arc intercepting the axis of rotation of the mold carriage and thereby alternately placing the blank mold in charge gathering position over the axis of rotation of the mold carriage and in position totransfer blanks tie the finishing mold, means for applying vacuum to the blank mold at the charge gathering station, and means for opening the blank inold at the blank transfer position.

4. In a glassware forming machine, the combination of a rotary mold carriage, means for continuously rotating the carriage about a vertical axis, an annular series of mold groups on said carriage, said groups each comprising a partible finishing mold, a blank forming unit rotatable about a vertical axis spacedradially inward from the finishing mold, said unit including partible cooperating blank and neck molds, means for movat the transfer position, and means for inverting the blank and neck molds during movement thereof to the transfer position whereby after opening of the blank mold the blank is suspended from the neck mold at the transfer station and may be enclosed for final expansion'in the finishing mold.

5. In a glassware forming machine, the combination of an annular series of mold groups, means for constantly rotating said mold groups about a vertical axis, each mold group comprising a partible finishing mold, a blank mold carrier arranged in a plane above the finishing mold and disposed between the latter and'the axis of rotation of the mold groups, partible blank and neck molds on said carrier, automatic means for rotating the carrier about a vertical axis spaced from the axis of rotation of the series of mold groups to alternately place, the blank and neck molds in charge gathering and blank transfer positions, said blank mold adapted to open upwardly at the charge gathering position, suction means for deliveringa mold charge of molten glass to the molds at the gathering position, means for opening the blank mold at the blank transfer position leaving a bare blank suspended from the neck mold, means for enclosing and expanding the blank to its final shape in the finishing mold, means for then opening the neck mold, and means for opening the finishing mold. v

6. In a glassware forming machine, the combination of an annular series of partible finishing molds rotatable about a vertical axis, means for continuously rotating the molds, blank formin units individual to the 'finishing molds inc uding partible suction blank molds, means for moving said blank forming units about vertical axes individual thereto to alternately place them at a charge gathering position in register with the axis of rotation of the finishing molds and a transfer position, said positions spaced apart radially of the machine, suction means at least in part causing delivery of molten glass to the blank molds, and means for inverting the blank molds as they approach the transfer position forpositioning blanks whereby they may be enclosed in the finishing molds for final expansion.

7. In a glassware forming machine, the

means including a blank mold, a neck mold,

a blank and neck mold carrier rotatable about vertical and horizontal axes individual thereto toalternately place said blank and neck molds in charge gathering and blank transfer positions, means for rotating the carrier about its vertical axis and thereby moving the blank and neck molds to a charging position at the center of the mold carriage, means for rotating the carrier about its horizontal axis vduring movement of the molds to the blank transfer position whereby a blank formed in the blank and neck molds is placed upright at the transfer position, means for opening the blank mold leaving a bare blank suspended from the neck mold, andomeans for closing the finishing mold about the bar blank.

8. In a glassware forming machine, the combination of an annular series of mold groups rotatable about a vertical axis, each group including a partible finishing mold, a partible suction blank mold, means for rotating the blank mold about a vertical axis disposed between the finishing mold and axis of rotation of the mold groups toalternately place said mold in charge gathering and blank transfer positions, means for alternately inverting and reinverting said blank mold whereby it opens upwardly at the charge gathering position and downwardly at the blank transfer position, means for exhausting the air from the blank mold while in the charge gathering position to thereby fill the mold with molten glass, and means for transferring a blank to the finishing mold in the transfer position.

9. In a glassware forming machine, the combination of a mold carriage rotatable about a vertical axis, means for rotating the carriage, a partible finishing mold thereon,

a blank forming unit comprising a carrier rotatable about vertical and horizontal axes,

the vertical axis of said blank forming unit neck molds, means to deliver mold charges to the blank and neck molds while in their reinverted position, and means for transferring blanks from said blank and neck molds to the finishing mold while the former are inverted and in the blank transfer position.

10. In a glassware forming machine, a partible finishing mold, a container for a supply body of molten glass spaced horizontally and vertically from the finishing mold and having a bottom outlet opening, a blank mold movable in a closed path in a plane be-. tween said container and finishing mold and past positions beneath said outlet opening and in register with the finishing mold, means for delivering a mold charge through the outlet opening to the blank mold, means for transforming the mold charge into a blank, meansfor transferring the blank to the finishing mold for final expansion therein, and means for alternately inverting and reinverting the blank mold during movement thereof in said path.

11. In a glassware forming machine, a partible finishing mold, a container for a supply body of molten glass spaced horizontally and vertically from the finishing mold and having a bottom outlet opening, a blank mold movable in a closed path in a plane between said container and finishing mold and past positions beneath said outlet opening and in register with the finishing mold,

suction means for delivering a mold charge through the outlet opening to the blank mold, means for transforming the mold charge into a blank, means for transferring the blank to the finishing mold for final expansion therein, and means for alternately inverting and reinverting the blank mold during movement thereof in said path.

12. In a glassware forming machine, a partible finishing mold, a container for a supply body of molten glass spaced horizontally and vertically from the finishing mold and having a bottom outlet opening, a blank mold movable in a closed path in a plane between said container and finishing mold and past positions beneath said outlet opening and in register with thefinishin mold, means for delivering a mold charge through the outlet opening to the blank mold, means for transforming the mold charge into a blank, means for transferring the blank to the finishing mold for final expansion therein, means for alternately inverting and reinverting the blank mold during movement thereof in said path, and means for continuously rotating both the finishing mold and blank mold about a common vertical axis.

13. In a glassware forming machine, a

mold carriage rotatable continuously about a vertical axis, means for rotating the carriage, a finishing mold mounted on the carriage adjacent the periphery of the latter, a blank mold unit comprising a horizontal bearing mounted on the mold carriage for neck mold carrier mounted in said bearing for rotation about a horizontal axis, partible blank and neck molds supported on the carrier, means for imparting rotary movement to the bearing about a vertical axis individual thereto at regular time intervals to alternately place the blank and neck molds in charge gathering and blank transfer positions which are spaced apart radially of the carriage, means for imparting rotary movement to the carrier during rotation of said bearing to thereby alternately invert and re invert said blank and neck molds, means for delivering a mold charge to the blank and neck molds while reinverted, and means for transferring a blank to the finishing mold while the blank and neck molds are inverted.

14. In a glassware forming machine, a mold carriage rotatable continuously about a vertical axis, means for rotating the carriage, a finishing mold mounted on the car riage adjacent the periphery of the latter, a blank mold unit comprising a horizontal bearing mounted on the mold carriage for rotation about a'vertical axis, a blank and neck mold carrier mounted in said bearing for rotation about a horizontal axis, partible blank and neck molds supported on the carrier, means for imparting rotary movement to the bearing about a vertical axis individual thereto at regular time intervals to alternately place the blank-and neck molds in charge gathering and blank transfer positions said positions spaced apart radially of the carriage, means for imparting rotary movement to the carrier during rotation of said bearing to thereby alternately invert and reinvert said blank and neck molds, means for delivering a mold charge to the blank and neck molds while reinverted, meansfor opening the blank mold while in the transfer position, means for closing the finishing mold about a parison suspended from the neck mold, and means for expanding the parison "to its final shape in the finishing mold.

15. In a glassware forming machine, a

a vertical axis, means for rotating the car-. riage, a blank forming unit comprising a horizontally disposed bearing mounted on the carriage for rotation about a vertical axis spaced from the axis of rotation of the carriage, a blank and neck mold carrier rotatively mounted in the bearing, partible blank and neck molds supported on one end of said carrier, blank and neck mold slides mounted in said carrier, connection between the slides and molds, means whereby movement. of the blank mold slide imparts movement to the neck mold slide at regular time intervals, and cam and spring means controlling movement of the blank mold slide.

, opening the blank mold at the transfer position, and means for alternately raising and lowering the finishing mold carrier to thereby move the finishing mold into and out of contact with the neck mold.

17. In a glassware forming machine, a mold carriage continuously rotatable/about a vertical axis, a partible finishing mold, a carrier for the finishing mold mounted on the mold carriage for rotation about a vertical axis individual to the mold and spaced from the axis of rotation of the-carriage, a discharge chute formed on the finishing mold carrier to one side of the mold, means for alternately raising and lowering the finishing mold carrier, and means for rotating said carrier about said individual vertical axis at regular time intervals to alternately place the chute in a position to receive articles discharged from the finishing mold and in another position to discharge the articles from the machine.

18. In a glassware forming machine the combination of a stationary central column, a mold carriage mounted thereon for rotation in a horizontal plane, an annular series of mold groups mounted on said carriage, means for continuously rotating the mold carriage and mold groups supported thereon, each mold group comprising a partible finishing mold, means for moving the mold along a straight vertical line between blank transfer and article discharge elevations, a blank forming unit mounted for rotation about a vertical axis disposed between the finishing mold and central column, said blank forming unit including a blank mold, a vertical bearing on the mold carriage, a supportthereon, a tilting bottom plate, associated with said mold, a slide carried by the table beneath said bottom plate and forming a support therefor, link connection between the slide and finishing mold, and means for imparting such movement to the slide that the finishing mold is opened thereby and the slide then withdrawn from its bottom plate supporting position and the bottom plate allowed to tilt by gravity for discharging an article.

20. In a glassware forming machine, a finishing mold table, a partible finishing mold thereon, a tilting bottom plate associated with said mold, a slide carried by the table beneath said bottom plate and forming a support therefor, link connection between the slide and finishing mo1d,'a cam arranged to move the slide a predetermined distancefand thereby open the finishing mold and then give the slide an additional movement by which it is withdrawn from its bottom plate supporting position and the bottom plate permitted to tilt by gravity, and means for moving the cam at regular time intervals.

21. In a machine for forming glass articles, the combination of a mold carriage, molds thereon, means for rotating the carriage and molds about a vertical axis, mechanism for transferring charges of molten glass comprising a receiver for said charges positioned at the axis of the mold carriage for receiving the charges of glass and a carrier on which ing frame journaled in said bearing, a hor1- zontal bearing mounted on the upper end of said frame, means rotatably supporting the blank mold in said horizontal bearing, means for imparting rotary motion to said supporting frame about a vertical axis and thereby "alternately placing the blank mold in a charge gathering position above said central column and a blank transfer position, and means for imparting rotary motion to the blank mold relative to said horizontal bearing to thereby alternately invert and reinvert the mold, whereby the mold opens upwardly at the charging position above the central column and downwardly at a blank transfer position.

19. In a glassware forming machine, a finishing mold table. a partible finishing mold