US1944844A

US1944844A - Apparatus for forming glassware

Info

Publication number: US1944844A
Application number: US538442A
Authority: US
Inventors: Karl E Peller; Algy J Smith
Original assignee: Hartford Empire Co
Current assignee: Hartford Empire Co
Priority date: 1931-05-19
Filing date: 1931-05-19
Publication date: 1934-01-23
Anticipated expiration: 1951-01-23

Description

Jan. 23, 1934. K. E. PEILER El AL ,8

APPARATUS FOR FORMING GLASSWARE I Filed May 19, 1931 6 Sheets-Sheet ,1

I In veniors. Ja/zff'feiffi y Witness.- M a. 44% Attorneys.-

Jan. 23, 1934. K. E. PEILER Er AL 1,944,844

APPARATUS F I-P. FORMING GLASSWARE Filed May 19, 1931 6 Sheets-Sheet 2 Witness 5 M &. Q j A ZZorn cy Jan. 23, 1934. K. E PEILER ET AL APPARATUS FOR FORMING GLASSWARE Filed May 19, 1931 6 Sheets-Sheet I; 9 a 1 o A z m w .2 a fi W A a 8 w W 4 2,, 4 9 w 1 M .Z Z m I n n 5 x m u m /V\ 7 n ,n in 3 I i 2 7 111.: u. W

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Wlz'tngs:

Jan. 23, 1934; K. E. PEILER ET AL 1, ,844

APPARATUS FOR FORMING GLASSWARE Filed May 19, 1931 6 Sheets-$heet A i torn 81/61.

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Jan. 23, 1934. K. E. PEJLER El AL 1,944,344

APPARATUS FOR FORMING GLASSWARE Filed May 19, 1931 6 Sheets-She'et 6 M Inventors:

0% 6 02 3 m @f w i Witness: Q4 2 Patented 1.11.23, 1934 PATENT oFFicEY APPARATUS son Fomvmv GLASSWARE I y Karl E. Peiler, West Hartford, and Algy 'J. Smith,

Bloomfield, Conn., assignors to Hartford-Empire Company, Hartford, Conn acorporation of Delaware Application May 19,1931. Serial No. 538,442

18 Claims."

This invention relates to apparatus for forming articles of hollow blown glassware, and more particularly relates to glassware forming apparatus in which three molds and molding operations therein are applied successively to each charge of glass.

We refer to the mold to which-the charge of glass is first delivered asthe feed mold; to the mold into which the partially formed glass article or feed blank is transferred from the feed mold as the form mold; and to the mold in which the final blowing of the form blown glass blank or parison isefiected as the final blow mold" or blow mold, the latter mold being customarily so termed in the art.

An object of the invention is to provide a glassware forming machine of the type above mentioned, inwhich the number of relatively moving operating parts is keptrelatively low and at the same time provision is made for proper synchronized operation of the respective glass contacting and-forming instrumentalities,

A further object of the invention is the provision in a glassware forming machineof the 25 character described of improved means for form-' ing a neck finish on, and eifecting the settle blow- "ing of, a glass charge in the feed mold, for coun- ,terb1owing' the glass in the feed mold after the fsettle blowing operation, and for transferring the 30- feed mold blank to the form mold and-forv par-.

tially expanding the glass in the latter;

Other objects and advantages of theinvention will be made apparent by the description hereinafter given of specific embodiments of such invention. .1

Our invention contemplates the use of two feed molds, a single form mold, and a plurality offinal blow molds, the feed molds being alternately supplied with charges of glass which are therein formed as feed' mold blanks, each with a neck finish thereon. Each feed mold blank is then transferred to the form mold and further formed therein to produce a form mold blank. From the form mold each form mold blank is transferred to the .final blow mold. The relative location of the molds bears an important part in the organization of the machine and in attaining great speed of manufacture of the ware. Thus the form mold 'i'slocated with its center line as the axis from which the twosieed molds are equally spaced r'adially, and the :same'faxlsliis. in alignment with the path generated by therota tion of the axis or the final blow molds. times, therefore, the axis of the form mold is mechanism;

nd'at 1 identical with the axis of'eachot the final blow molds. g 1

Figure 1 is :a somewhat diagrammatic plan; view of one'emb'odiment of our invention;

Fig. 2 is .an enlarged plan view-oi the embodi- 6.0 ment of our in'vention shown in Fig. 1, showing the feed and jfo'rm mold table in association with a portion of the blow mold table;

Fig. '3-"is a section taken on the Fig.2;. I

Fig. his an enlarged section taken on the line Y'DI 8- Fig.5- is an enlarged section taken on the-line V-V of Fig. 2;

line III- 111b;

Fig. 6 is an enlarged section taken onztneline vI-vr of Fig. 2; Fig. 7 is an enlarged section takenon the line VII-VII of Fig. 3; g

Fig. 8 isv a section taken on the line VIII-VIII oi Fig.-'l; 17 5 Fig. 9 is an enlarged plan view, .with parts broken away, of the neck ring its associatev Fig. 10 is an enlarged elevationjof a neck pin with certain parts shown in SBQM; 8 0 Fig. 11 is a section-taken'oniitliline XII-II o1 Fi 10; 5 Figs. 12 to 14 are sections taken through the feed mold and neck ring, showing successive steps in the formation of the feed blank; 3 Fig. -15 is a section taken through the neck ring and form mold;

Fig. 16 is a section taken through the blow mold and blow head; and i Fig. 17 is a plan view of or our invention.

Referring particularly to Fig. 1, one embodiment of our inventioncomprises generally an a second embodiment oscillating table 20, carrying a pair of spaced

teed molds

21, 22, and a form mold 23 having its axis aligned with the axis of oscillation of the table 20, and a rotatable final blow mold table 24 carrying blow molds 178 thereon, all mounted upon a base 26, together with various actuating and timing mechanisms.

The oscillating table 20 (Figs. 1, 2 and 3) is mounted over a stationary table 30. One end of the oscillating table 20 is mounted on a pivot pin '31. This pivot pinls carried by the table 30. The

other endoi the table 20 is supported on two wheels 32, each wheel .32 being mounted on a 33 formed, on or "mounted in the table 20.

m gq e i sz travel-ion track34 on the table 30. -'1'he*table;2 o isoscillated by a piston and cylinder arrangement generally indicated at 35 (Figs.

1 and 2), comprising a cylinder 36 pivoted at one end on a. pin 3''! on a bracket 38 fixed to the table 30 (Fig. 1). The piston rod 43 of a piston 39 in the cylinder 36 is pivotally connected by a pin 44 with the oscillating table 20. Air is admitted to opposite ends of the cylinder 36 alternately through

pipes

41 and 42. With this arrangement, the cylinder and piston may swing with the table 20 as it is oscillated. The extent of the arc 6f oscillation of the table 20 is limited by adjustable abutment screws 45 mounted on small brackets 46 on the stationary table 30 and maintained in adjusted position by lock nuts 47.

The

feed molds

21 and 22 are spaced at an equal distance radially from the axis of oscillation of the table 20, and so positioned relative to each other and to the table 20 that when the table is in one extreme position of oscillation, one mold will be axially aligned with the opening of a feeder outlet (not shown), and when in the other extreme position, the other mold will be axially aligned with the feeder outlet.

The feed molds are identical in construction as are their respective opening and closing mechanisms. Therefore, only one feed mold and its opening and closing mechanism will be described.

Each

mold

21 or 22 is mounted in a mold holder 50 (Figs. 2, 3 and 4), composed of two halves, both pivoted upon vertical pins 51 on the table 20. Each half of the mold holder 50 is formed with indentations 51a opposite projections 52 at the inner sides of the arms 53 of a sliding yoke member 54. The member 54 is mounted in a slideway 55 (Fig. 4), formed in an upstanding support 56 on the oscillating table 20. Mounted on the sliding member 54 is a cam roller 60 A cam 61 for actuating the cam roller 60 is mounted on a bracket 62 on the stationary table 80. Each feed mold is closed as it is moved by the oscillation of the table 20 to its charge receiving position beneath the feeder outlet. As each feed mold is moved toward its charge receiving position, the forks of its associate slide member 54 engage with the pivoted halves o'f'the holder 50 for that mold, and not only close the mold but preferably hold the halves thereof closed under a slight spring tension, as shown for the mold 21 in Fig. 2. Such inward movement of the member 54 is effected by the engagement of the cam roller 60 on that member with its associate cam 61.

As indicated at 63, the cam path of each cam 61 is unidirectional in operation so that it will not open the associate feed mold as the latter moves away from the feed station. As the mold approaches the outer end of its path of oscillatory movement, its associate cam roller 60 moves into a transverse slot 64 in a plate 65 carried on the end of apiston rod 66 of a cylinder 6'7. The latter is mounted on an arm of the bracket 62 which is mounted on the table 30. The feed mold then may be opened at the time desired by applying air through a port 69 to the inner end of the cylinder 67 as the resultant outward movement of the associate slide member 54 will cause the projections 52 on the forks of such member to engage with the inner end walls of the indentations 51a of the halves of the feed mold holder, and will swing the pivoted mold holder halves apart, as shown for the mold 22 in Fig. 2. A port 68 at the opposite end of the cylinder 6'7 may be open to the atmosphere during this operation.

At the beginning of the return movement of the feed mold toward the charge-receiving posi tion, its associate roller 68 will move out of the slot 64 in the plate 65 into contact with the associate cam 61. The subsequent actuation of such cam roller by the cam will effect closing of the feed mold, as hereinbefore described.

Air then may be applied through the port 68 to the outer end of the cylinder 67 to return the plate 65 to the position shown at the lower left hand corner of Fig. 2, the port 69 at the inner end of the cylinder 67 being open during such operation.

From the foregoing description, it will be obvious that we provide two feed molds which may be moved alternately to a common feeding position and away therefrom to separate positions at which they may be opened at any desired time prior to their next movement toward the feeding station.

As shown in Figs. 1, 2 and 3, a single settle blow head 205 for cooperating with the feed molds successively is mounted on an arm 206 attached to a piston rod 207 of an air cylinder 208, which is fixed on the stationary table 30. As shown in Fig. 3, the piston rod 207 carries a projecting pin 209, working in a curved slot 210 in a sleeve 211 surrounding the piston rod, whereby, as the piston rod and settle blow head are raised and lowered, they are at the same time oscillated between the positions which respectively are shown in Fig. 2 and in Fig. 1.

Associated with each of the feed molds are neck rings and neck ring operating mechanisms. Only one of such mechanisms will be described, as they are identical except for their position.

A bracket '75 arising from table 20, Fig. 3, forms a bearing 79 for a shaft '76, to which is fixedly connected an arm 78 as by a set screw '17, Fig. 4. Fixed to the arm '78, as by the screw 80, is a. bracket arm 81 to which the two

neck ring holders

83 and 84 are pivoted at 82 (Figs. 2 and 9). The halves of a neck ring 85 are secured to and carried by the neck ring holders.

The neck ring normally is maintained closed by,an expansion spring that is retained in operative position by opposed projections 91 at the inner sides of rearward extensions of the

neck ring holders

83 and 84. As clearly shown in Fig. 9, the rearward extension of the holder 84 is connected by a pivoted link 92 to a lever 93. The latter is pivoted at 94 on the arm 81 and has its other end in contact with the rearward extension of the holder 83.

A piston rod 96, Fig. 2, in one position of the neck ring bears against the rounded lateral enlargement 95 at the outer side of the rearward extension of the holder 83, opposite to the point of contact of the lever 93 with such extension. The piston rod 96 projects from the end of an air cylinder 97 and is operated by a piston in the latter. The cylinder 97 is mounted on a bracket 98 which may form an extension of the bracket '75. As shown in Fig. 2, the piston rod 96 normally is maintained in retracted position by an expansion spring 100. When the piston rod is forced outwardly by the application of air pressure through the pipe 101 .to the cylinder 97, the pressure on the rearward extension of the holder 83 will force such extension against the lever 93, which will be actuated to exert a pull on the rearward extension of the holder 84, The pivoted holders thus will be swung apart and the neck ring will be opened.

A neck pin 112 and a circular neck pi'n retaining plate 105 (Fig. 4) are provided for each neck ring. The plate 105 has a circular-opening 110, which is axially aligned with the neckring when the latter is closed, the plate being attached ing for the shaft 148. The form mold holder by screws 106 (Fig. 9) to one of the halves of the neck ring 85. The neck pin 112 is mounted for sliding movement through the opening 110 in the plate 105 and projects into the bore.111 of the neck ring 85. The neck pin is normally maintained in a retracted position, as shown in Fig. 14, by an expansion spring 115, which forces the neck pin outward until a guiding and movement-limiting collar or flange 116 on the neck pin bears against the inner face of the plate 105. The tension of the spring may be adjusted by nuts 117 which are threaded on the outer end of the neck pin.

Centered axially with the neck pin and therebelow when the neck ring and its associate feed mold are in charge receiving position, as shown in the left-hand portion of Fig. 3, is the piston rod 118 of an air motor 119 that is carried by the table 30. The piston-rod 118 may be projected upwardly through openings 120 in the table 20, Fig. 5, to force the aligned neck pin upwardly to the position shown in Figs. 12 and 13. In such position, the neck pin cooperates with the neck ring in forming a neck finish on the charge of glass. Air may be admitted to and exhausted from either end of the air motor 119 through

ports

121 and 122 to effect upward projection and downward retraction of the piston rod 118 at the desired times.

The neck pin 112 is formed with an axial bore 140 (Figs. 10 and 11) adapted for alignment with an axial bore 141, Fig. 4, in the piston rod 118. The bore 140 at its upper end communicates with a plurality of rearwardly and outwardly directed air discharge ports or passages in the upper end portion of the neck pin. Thus, when air is admitted to the air motor 119 to project the piston 7 rod 118 in an upward direction, air under pressure passes through the two aligned

bores

140 and 141 and thence to the atmosphere through the ports 142, thereby cooling the neck pin.

The neck ring and its associate neck pin may be oscillated about the axis of the horizontal shaft 76 by means of the following mechanism. A clutch block 125, Figs. 2 and 6, having a. tapered groove (Fig. 6) is fixed to the shaft 76 by pin 126. Adapted to mesh with the groove is a tapered tongue 127 formed on a cooperating clutch member which is shown as an enlarged or head portion 128 of a shaft 129. The shaft 129 has keyed or pinned thereto a gear 130, and is supported in a bearing 131. This bearing is carried by a bracket 132 that is mounted on the stationary table 30, Fig. 2. A rack 133 is carried by and may be an extending end portion of the rod 134 of a piston in an air cylinder 135. The 'air cylinder 135 is mounted on the table 30 in such position that-the rack 133 meshes with the gear 130. By the admission and exhaust of air through the

pipes

136 and 137 to and from opposite ends of the cylinder 135 alternately, the gear 130 may be turned alternately in opposite directions and the neck ring and neck pin mechanism oscillated about a horizontal axis through 180 for purposes to be hereinafter stated. Two

consists of two halves held in form

mold hold ers

145 and 146. The mold holder half 146 has hub 146a secured by a set screw 147 to the upper end portion-of a vertical shaft 148, Figs. 3 and 7. A rotatable sleeve 149 provides a bearhalf 145 has a hub 145a secured to the sleeve 149 by a set screw 150. The hub 146a rests on' the hub 145a which in turn rests upon a hollow bearing post 153 in which the sleeve 149 is journaled. The post 153 is upstanding from the stationary table 30 and is so positioned that the vertical axis of the form mold is aligned with the axis of oscillation of the table 20. As will be seen fromFig. 8, the hollow post 153 extends through a slot 154 in the oscillating table 20.

The shaft 148 and sleeve 149 extend below the level of the stationary table 30.

Rings

156 and 157 are attached as by set screws 155 to the lower end portions of the sleeve 149 and shaft 148, respectively. These rings carry projecting arms 159 soshaped and positioned that angular'movement of these arms toward or away' from each other will effect relative turning movements of the shaft 148 and the sleeve 149 about their common vertical axis and will effect closing or opening movements of the halves of the form mold. The means for moving the pivoted arms 159 toward and away from each other may comprise a casting 162 which is slidably mounted in a frame 163 and is reciprocable therein by an air motor 164 (see Fig. 7). The casting 162 has arms 162a which respectively are located at the opposite sides .of the arms 159. Inwardly extending opposed cam fingers 165 on the arms 162a will contact with the outer edges of the arms 159 and will force the arms 159 toward each other as the slide casting 162 moves in one direction in its frame. Other fingers, 166.,on the arms 162a of the casting 162 will contact first with the rounded extremities of the arms 159 and later with the inner surfaces of said arms when the direction of movement of the slide casting 162 has been reversed and will swing the arms 159 apart.

The air motor 164 is attached by bolts 167 (Fig. 3), to the under side of the table 30 and air may be admitted to opposite ends of the cylinder thereof through

pipes

169 and 170, respectively. In order to regulate the extent of opening and closing of the form mold, a piston rod 171 of the motor 164 is threaded and is adjustably connected to the slide member 162 by positioning nuts 172, as shown in Fig. 7.

Additional adjusting means also are provided in the form of a stop screw 173 that is mounted in the outer end of the cylinder of the air motor 164 and governs the extent of retractive movement of the piston rod 171 and hence the movement of the casting 162 in one direction for determining the degree of opening of the form mold 23. Y

Blowing air may be supplied through'tne neck ring by the following mechanism, for blowing the charge of glass to the shape of the form mold. An annular groove 215 (Fig. 4) in the neck ring 85 admits pressure to the form mold 23 when the neck pin is in retracted position, as shown in Fig. 15. The groove 215 communicates through a passageway 216 in the neck ring holder 83 with a passageway 217 in the bracket arm 81, which in turn communicates with a passageway 218 in the arm 78 Fig. 4. The passageway 218 communicates with an axial bore 219 in the shaft 76. The bore 219 is closed at one end and at its other end-.has a lateral port 220 communicating with an annular groove 221 in the bearing portion'79 of the bracket in which the shaft 76 journaled (Fig. 6). Air under pressure is' admitted to the annular groove 221 through the pipe 222 (Fig. 9) at timed intervals, and maybe exhausted therefrom through the same pipe.

The final blow table 24 may be of conventional type, and may be rotated intermittently or stepby-step in the same direction by any suitable known driving mechanism, such, for example, as is disclosed in Patent No. 1,766,135, granted June 24, 1930 to J. W. Lynch for Apparatus for blowing thin wall glassware. Driving mechanism of the type just referred to is shown more or less diagrammatically in Fig. 1 and includes a driven gear 1'77 in mesh with teeth in the periphery of the table 24, a gear 1770. which is reciprocated vertically between a position to engage with a rack 175 when the latter is moved in one direction and a position out of engagement with the rack during the return stroke of the latter. The rack may be reciprocated by. an air motor 176 which may be fixed on the base.26.

Final blow molds 1'78 on the table 24 may be opened by a cam 1'79 and closed by an air motor 180. To these ends, the opening and closing mechanism of each final blow mold includes a radially slidable cross head 300 operatively connected with the pivoted holders 301 by which the halves of the final blow mold are carried.

A roller 302 is carried by each cross head 300.

As the mold table rotates, the roller 302 for each final blow mold will be brought in its turn to position to enter one end of the path along the guiding surface of the'cam 1'19. Movement of the cam roller along said cam path will cause the roller-carrying cross head to be moved radially inward on the mold table with consequent opening of the associate final blow mold so that the latter will be fully open when it is brought to the station at which a partially expanded parison is to be transferred thereto from the form mold.

The piston rod of the air motor 180 carries a plate 183, in which there is a transverse slot 184. The cam roller 302 for each final blow mold is guided into this slot by the cam 1'79 as the fully open final blow mold is brought to the transfer station as above described. Air under -pressure may be admitted through a port 182 to the inner end of the cylinder of the air motor 180 while the port 181 at the opposite end of saidcylinder is in communication with the atmosphere or with a suitable exhaust mechanism (not shown). The consequent outward radial movement of the piston rod actuated plate 183 will carry the roller 302 and the roller-carrying cross head 300 with it, thereby closing the halves of the final blow mold about the suspended neck-up partially expanded parison at the transfer station. It, of course, will be understood that the halves of the form mold 23 have previously been opened to permit. such closing movement of the final blow mold, the parison being suspended from the neck ring 85. The halves of the final blow mold, as they close about the parison at the transfer station, overlap a suitably located baffle or bottom' plate 303, Figs.

1, 3, -and 16, one of which is provided for eachi'final blow mold.

The neck ring 85 will be opened at the proper time to permit the parison to travel with the final blow mold as the rotation of the table 24 moves such blow mold from the transfer station to a final blowing station.' Such movement of the blow mold table will cause the cam roller 302 of the loaded final blow mold to move out of the slot 184 of the plate 183. The air motor 180 then may be actuated, by admitting pressure fluid through the port 181 and permitting exhaust through the port 182, to return the plate 183. radially inward to position to cooperate with the cam roller of the next final blow mold to be brought to the transfer station.

Blow-down head 18''! and mold clamping devices 188 at the final blow stations may be of conventional form and actuated by suitable mechanisms which are well known in the art and which, therefore, need not be particularly illustrated or described herein. The blow-down heads may be moved to and from operative relation with the final blow molds by air motors 191. Air motor 190 and suitable connections may be provided for operating the mold clamping devices 188.

The final blow mold table and the mechanisms carried thereby have not been described in detail herein as they may be similar to the constructions of the disclosure of the aforesaid Lynch patent, No. 1,766,135.

The entire machine is air acutated through various air motors heretofore described. Air may be admitted to and exhausted from the air motors and pneumatic operating parts of the machine at times which may be predetermined and controlled by the diagrammatically illustrated timing mechanism 200, Fig. 1, known commercially as the I. S. timer, which is described in detail in the copending application of Henry W. Ingle, Ser. No. 735,079, filed August 30, 1924, now Patent 1,843,159, granted February 2, 1932. The timer is driven by a constant speed motor 201 through a reduction gear 202 and an adjustable speed changing device 203.

Operation In operation, a charge of molten glass of predetermined weightand shape is delivered to the feed mold 21 when such mold is in the position shown in full lines in Fig. 1. Prior to the time of delivery of the charge of glass to the feed mold, the feed mold has been closed by the action of the cam path 63 on the cam roller 60. The settle blow head 205 is in its raised position above and at one side of the feedmold 22. The neck pin 112 is in raised position, as shown in Fig, 12.

Thereafter, the settle blow head 205 is lowered and at the same timerotated into axial alignment with the feed mold? "Air, pressure is applied through the settle blow mead to the feed mold and the glass therein is corr' 'pacted downwardly in the feed mold and into theneclfgring and about the neck pin, thereby forming aneck finish on the charge and causing it toassume tlishape shown in Fig. 13. f

Airpressure is then relieved fromthefsttle blow head 205, and substantially simultaneously exhausted from the lower end of the cylinder 119,,

thus withdrawing the piston rod 118 and allowing f the neck pin to be moved to its retracted position by the spring 115. Next, air pressureis admit-"- ted through the groove 215 in the neck ring to blow a small bubble in the feed blank and to force the feed blank against the bottom of thexcombined settle blow head and baflle plate 205,"-;thus marvering the bottom of the feed blanksubstantially as shown in Fig. 14.

Upon the completion of the counterblowing just described, the combined settle blow head and baflle plate 205 is raised by the admission of air to the lower end of the cylinder 208, Fig. ,3. Air is admitted to the rear end of the cylinder 36, Fig. 1, to oscillate the table 20.

The oscillation of the table will carry the feed position of Fig; 1 to the dotted line 'position of I.

' the same figure; and simultaneously will efiect: closing of the feed mold 22 "and the-positioning of the latter at the charge-receivingstation:

- The feed'mold 21 will remain c1osed-during its movement from beneath the feeder outlet," but I its cam roller 60 will have been moved into the slot 64 in the plate 65. Upon the admission of mold 21 from the full line or charge receiving air to the forwardend of the cylinder-67 ,'-the plate will be moved radiallyoutward from'thecenter of the table 20, and the feed mold 21 will be: opened, as shown in dotted lines in" Fig.1. The": feed mold blank or parison will besupported ininverted position by the neck ring-85.-

The aforesaid oscillatory movement pf the:

table 20 has moved the clutch block 125 for the mold 21 into operative engagementwith theco operating clutch-member 128. Upon"the opening of the feed mold 21, air pressure will 'be ad'- mitted to the lower end of the cylinder -135 to' actuate the rack 133 and thereby to rotate *the shaft '76. The neck ring thus will be-r'n'oved through an arc of approximately 180 to dispose the feed mold blank in a neck-up position bethe associatefeedmold. Mechanisms suitable -formoving the'chutes 225-and 226=-to and from their charge receivingpositiona in timed relatween the halves of the open form mold 23.

Upon the completion of the movement of the feed mold blank, as above described, airwill be admitted to the rear end of the cylinder 164, Fig. 3, to close the halves of the form mold about said blank. As soon as the form mold has been closed, air will be admitted through the annular groove 215 to enlarge the bubble in the feed mold blank and to force the glass in the form mold 23 against the walls of the cavity of said mold, thereby producing a form mold blank or partially expanded parison, as shown in Fig. 15.

By the time that the blowing of the form mold blank has been finished, the final blow mold table has been rotated to bring a baflie plate 303 of an open and empty final blow mold to a halt below and in axial alignment with the form mold 23. The form mold 23 will then'be opened, leaving the form mold parison suspended from the neck ring 85, a final blow mold 178 will be closed about the'suspended form mold parison, the neck ring 85 then will be opened, and the blow mold table will be given a further rotary movement.

As soon as the final blow mold has closed about the form mold blank, the neck ring 85 will be opened by air motor 97 and thereafter returned through an arc of approximately 180 from its position at the form mold blank transferring station to position to cooperate with the feed mold 21, which still remains open at the position indicated by the dotted lines in Fig. 1. The neck ring will be closed by the spring before it moves downwardly between the halves of the open feed mold 21 to its last named position. Return oscillatory movement of the table 20 then will move the charged feed mold 22 away from the charge receiving station and will effect closing of the feed mold 21 and the return of that mold to said station.

As shown in Fig. 1 the form mold blank in the final blow mold may be blown at the first and third stations after that at which the final blow mold received such blank. However, the final blowing pressure may be applied at any of the "3 available stations as desired, provided that this walls thereof except at the neck. The form mold blank thus permitted .to, reheat during the rotation of the-table'from. the position at which such blankwas transferred to theposition at which blowing pressure is I applied thereto, and during the timenecessary for the lowering of thefinal blow-head '18'7 into position. As shown -'in FigQlG, upon the application of final blowing I pressure thereto,- the form mold blank assumes -theshape of the final blowmol'dand hence of thearticle to be formed-. 1 In'the modified form-of our invention shown in Fig 17, we eliminate theoscillating table 20 and mount our feed molds directly upon'a'stationary table which may replace the stationary table 30 of the embodiment of the invention here-' tofore described. Charges fromafeederiarede- 'li'ver'ed to the feed molds of the modified construction by means of the

chutes

225 and 226, the

receiving ends'of which are ialternately positioned-beneath the fe'eder' outlet- :and each of stationary chute 225a or 226a, which in turn delivers the charge centrally downward into tion with each other are indicatedgenerally at 227 and may beof' any'suitableknown construction, such as is well known in the art.

It will benoted that in this embodiment of our invention, we provide an additional'settle blow head and baflleplate' mechanism 205, and that we may eliminate'the clutch arrangement 125128 of the hereinbefore described mechanism for inverting the neck ring, the gear 133 of the modifled form ofconstruction'being coupled directly to the shaft 76. Also,"parts of the first form of construction which are necessary to effect oscillation of the feed mold and form mold carrying table, or to change the position of certain parts in view of such oscillatory movement may be omitted from the modified form ofconstructlon.

Like reference characters have been used to designate like parts ofthe two forms of construction. It therefore is believed that the construction and operation of the'modified- 'i'orm of construction will be understood without any further description thereof being required herein. I

While we have described practical embodiments of our invention as shown in the drawings, we do not wish to limit the invention thereto or more narrowly than is required by the terms of the appended claims, in which 'we'claim as our invention:

1. Apparatus for forming hollow blown glassware comprising a table, a plurality of feed molds thereon. means to oscillate said tableto position said feed molds successively at a predetermined common feeding station, meansto'shape feed blanks in said feed molds, a form mold, means to successively transfer said feed blanks to said form mold, means to blow said feed blanks in said form mold to shape form blanks; a plurality of final blow molds, means to successively transfer said form blanks to said blow molds, and means to blow said form blanks toflnal form in said final blow molds.

2. Apparatus for forming hollow glassware, comprising a plurality of feed molds adapted successively to receive charges of moltenglass, a form mold, a neck ring associated with eachfeed mold, means including said neck rings for successively forming feed blanks with neck finishes thereon in said feed molds, means including said neck rings for transferring said feed blanks successively to said form mold, means including said neck rings for forming said feed blanks into form blanks in said form mold, a final blow mold, means for opening the form mold to leave a form blank supported by one of said neck rings, means for closing said final blow mold 10 about the last-named form blank in the position at which it was formed as a form blank, means for opening said one neck ring to release said last-named form blank to said final blow mold, and means for thereafter blowing said last-named form blank to final shape in said final blow mold.

3. Apparatus for forming hollow blown glassware, comprising a plurality of feed molds arranged with their axes always in a predetermined circle, means for forming feed blanks in said feed molds, a single form mold arranged with its axis at the center of said circle, means for transferring the feed blanks formed in all said feed molds successively to said form mold, means ggfor expanding said feed blanks to the shape of said form mold and thereby form parisons, a final blow mold, means for transferring parisons from said form mold to said final blow mold,

and means for expanding parisons to final form in said final blow mold.

4. Apparatus for forming hollow glassware, comprising a plurality of stationary feed molds adapted to be supplied with charges of molten glass, means for forming feed blanks in said feed molds from said charges of glass, a form mold, means for successively transferring said feed blanks from all said feed molds to said form mold, means for expanding said feed blanks to the shape of said form mold and thereby form parisons, a plurality of final blow molds, means to transfer parisons shaped by said form mold successively to said final blow molds, and means to blow said parisons to final form in said final blow molds.

5. Apparatus for forming hollow glassware comprising a pair of feed molds adapted to be alternately supplied with charges of glass, a neck ring associated with each of said feed molds, a blow head, means to successively blow charges 50 of glass supplied to said feed molds down into said neck rings to form neck finishes thereon,

said blowing means including a baffle plate, means to admit air under pressure through said neck rings into said partially formed charges of glass to blow said charges of glass back against said baffle plate to marver the bottoms thereof, means including said neck rings to transfer said charges of glass successively to a form mold where said charges of glass are again blown through said neck rings to enlarge the size thereof, a final blow mold, means to open said form mold to leave the partially expanded glass supported by one of said neck rings, means to close said final blow mold about said supported partially shaped glass at the position at which the shaping thereof was effected in said form mold, means for actuating the neckring to release the partially shaped glass in the final blow mold, and means thereafter operable to blow the glass in said final blow mold to final form.

6. Apparatus for forming hollow glassware, comprising a support, a plurality of preliminary molds carried by said support with their axes all in a predetermined circle, means for prelim- 5 inarily shaping charges of glass in said preliminary molds, a single secondary mold mounted on said support with its axis at the center of said circle, automatic means to transfer partially shaped glass articles successively from all said preliminary molds'to said secondary mold, and means operative successively to expand the articles thus transferred to the shape of said secondary mold.

7. Apparatus for forming hollow glassware, comprising a support, a plurality of preliminary molds carried by said support with their axes all in a predetermined circle, means for preliminarily shaping charges of glass in said preliminary molds, a single secondary mold mounted on said support with its axis at the center of said circle, automatic means individual to each of said preliminary molds for transferring partially shaped glass articles from said preliminary molds successively to said secondary mold, means for successively expanding the articles thus transferred to the shape of said secondary mold, and means operable thereafter for opening said secondary mold for the release of the glass shaped therein.

8. Apparatus for forming hollow glassware of the narrow neck type comprising a support, a plurality of preliminary molds carried by said support with their axes all in a predetermined circle and with their bottom portions always upwardly for the receipt of charges of glass from above, means including settle blowing means and counterblowing means for shaping charges of glass in said preliminary molds, a single secondary mold mounted onsaid support with its axis at the center of said circle and its neck end always up at the top, automatic means for successively transferring partially formed glass articles from said preliminary molds to said secondary mold and for invertingsuch articles from a neck-down position in said preliminary molds to a neck-up position in said secondary mold, and means operative successively to expand the articles thus transferred and inverted to the shape of said secondary mold.

9. Apparatus for forming hollow glassware of 12 the narrow neck type comprising a support, a plurality of preliminary molds carried always in neck-down position by said support and with their axes all in a predetermined circle, means for preliminarily shaping charges of glass in said preliminary molds including settle blowing means and counterblowing means, a single secondary mold on said support in neck-up position with its axis at the center of said circle, automatic means to transfer partially shaped'glass articles successively from all said preliminary molds to said secondary mold including a neck ring mounted for inversion about a horizontal axis intermediate each of said preliminary molds and said secondary mold and cooperating with said 1 preliminary molds in forming the articles therein, and means operable successively to expand the articles thus transferred to the shape of said secondary mold.

10. Apparatus for forming hollow glassware 1 comprising a stationary support, a movable support pivotally mounted on said stationary support on a vertical axis, a pair of preliminary molds mounted permanently in neck-down position on said movable support at the same distance from said axis, pneumatic means for oscillating said movable support to bring said molds alternately to a predetermined charging position, a secondary mold mounted on the first named support in permanent neck-up position with its axis in versaid movable support, means individual to each of said preliminary molds for transferring partially formed articles of glassware therefrom to said secondary mold, the last named means including neck rings mounted for oscillation about horizontal axes between the respective preliminary molds and said secondary mold, means for settle blowing charges of glass in said prelimi-' nary molds including a settle-blow head, a neck pin associated with each neck ring and means for operating said neck pins, means for counterblowing the settle-blown charges of glass in said preliminary molds including meansfor retracting said neck pins, a bottom closure or baiile for said preliminary molds, and means for ad-.

mitting pressure through said neck rings-to expand the glass to the shape of said preliminary molds, and means for expanding the partially formed glass articles to the shape of said :secondary mold subsequent tothe transfer of isuch articles thereto including the means for admitting pressure through'said neck rings.

11. Apparatus for forming hollow glassware, comprising a stationary support, a movable support mounted for oscillatory movement with respect to said stationary support about a vertical axis, a pair of preliminary molds mounted on said movable support in permanent neck-down position, means for oscillating said movable support to bring said molds alternately to a chargereceiving position, means for closing said preliminary molds including fixed cams operable in response to the movement of'said movable support to bring said molds respectively to their charge-receiving position, pneumatic means for opening said molds respectively when at their positions other than the common charge-receiving position, a secondary mold mounted on the first named support with its axis in vertical alignment with the axis of oscillation of said movable support and in permanent neck-up position, means for transferring partially formed glass articles from said preliminary molds to said secondary mold including a neck ring for each of said preliminary molds mounted for inversion about a horizontal axis intermediate the respective preliminary mold and said secondary mold, means for opening and closing said neck rings, means for opening and closing said secondary mold, a combined settle blow head and counterblow baflie cooperable with said preliminary molds when in their common charge-receiving position, a neck pin associated with each of said neck rings, means for operating said neck pins when in cooperation with said preliminary molds at the charge-receiving position to move the neck 'pins into cooperative. relation with said neck rings, means individual to said neck pins for retracting them when released by said operating means, means for supplyinga settle blowing air through the combined settle blow head andabout their respective invert axes for transferring the partially i'ormed glass articles from their respective preliminary molds successively to said secondary mold, the last named means including stationary actuating means and a clutch adapted to be engaged by the oscillation of said movable support, and means to supply pressure to the interior of a partially formed glass article within said secondary mold to expand it to the shape of said mold. I

12. Apparatus for forming" hollow glassware, comprising a mold adapted to be supplied with glass, a plunger member cooperating with said mold for shaping the glass therein, a fluid pressure cylinder formoving said plunger member into cooperative relation with said mold, and passages through the piston and piston rod of said cylinder and through said plunger member to the atmosphere so arranged that the fluid pressure suppliedto said cylinder to move said plunger member into cooperative relation with said mold will pass through said passages and through said plunger member for cooling it.

13. Apparatus for forming hollow glassware, comprising a preliminary mold mounted in permanent neck-down position, a secondary mold mounted in permanent neck-up position, a neck ring and a neck pin mounted for inversion about a horizontal axis intermediate said molds mr transferring partially formed articles'of glassware I from said preliminary mold to said secondary 1'00 siliently urging said neck pin away from coopera- 5 I mold, means movable with said neck ring for repiston rod therein, the latter of which is adapted,

to contact with and move said neck pin into cooperative relation with said neck ring, a passage through the' piston and piston rod of said cylinder, a passage in said neck pin adapted to be aligned with the first named passage for conducting fluid pressure admitted to said cylinder to move said neck pin into cooperative relation with said neck ring into and through said neck pin for cooling the same,-means including said neck ring and neck pin for shaping a charge of glass in said preliminary mold, and means operated subsequent to the transfer for expanding the partially formed glass article to the shape of said secondary mold.

14. Apparatus for forming hollow glassware, comprising a feed mold arranged in permanent neck-down position, a form mold spaced from said teed mold and arranged in permanent neckup position, a rotary carrier, a final blow mold on said rotary carrier arranged in permanent neck-up position, means for forming feed blanks in said feed mold, means for transferring said feed blanks from said feed mold to said form mold and simultaneously inverting such blanks from neck-down position to neck-up position, means for expanding said feed blanks to the shape of said i'orm mold and thereby forming parisons therefrom, means for transferring said parisons from said i'orm mold to said blow mold, and means for blowing said parisons to final form in said blow mold.

15. Apparatus for forming hollow glassware, comprising a feed mold mounted in permanent neck-down position, a form mold spaced from said iee'd mold and mounted in permanent neckupposition, a rotary carrier, a plurality 01 final blow molds on said carrier, means for rotating said carrier intermittently t bring each oi! said final blow molds'in succession to a transfer position in which the axis of one of said blow molds is coincident with the axis 01 said form mold, means for forming feed blanks; insaid feed mold, means for transferring feed blanks thus formed from said teed mold to said form mold and simultaneously for inverting said blanks during the transfer, means for expanding the feed blanks to the shape of said form mold and thereby forming hollow parisons, means for supporting the pari sons at a fixed position for transfer between the form mold and a final blow mold, and means for expanding the parisons to final form in said blow molds.

16. Apparatus for forming hollow glassware comprising a stationary support, a movable support pivoted to said stationary support on a vertical axis, a plurality of feed molds mounted on said movable".support in permanent neck-down position and allfatthe same distance from said axis, a form, mold mounted to close with its axis in vertical alignment with the first named axis, a rotary carrier, a blow mold on said carrier, means for moving said movable support with respect to said fixed support to bring said feed molds successively to a predetermined charging position, means for forming feed blanks in said feed'molds, means individual to each feed mold for transferring the feed blanks thus formed from a neck-down position in said feed molds to a neckup position in said form mold, means for expanding the feed blanks to the shape of said form mold and thereby forming parisons, means for transferring said parisons from said form mold to said blow mold, and means for blowing said parisons to final form in said blow mold.

17. Apparatus for forming hollow glassware comprising a stationary support, a movable support pivoted to said stationary support on a vertical axis, a pair of feed molds mounted in permanent neck-down position on said movable support with their axes the same distance from said vertical axis, a form mold mounted on said stationary support in permanent neck-up position and having its axis when closed in vertical alignment with the axis of movement of said movable support, a rotary carrier, a plurality of final blow molds on said carrier, neck rings individual to said feed molds and mounted for inverting movement about horizontal axes intermediate the respective feed molds and said form mold, means for oscillating said movable support to bringeach of said feed molds alternately to a common charging position, means for forming charges of glass supplied to said feed molds into hollow feed cluding said neck rings for transferring said parisons from said form mold to said blow molds,

and means for blowing the parisons to final form in said blow molds.

18. Apparatus for forming hollow glassware, comprising a stationary support, a movable support pivoted to said stationary support on a vertical axis, a pair of feed molds mounted on said movable support in. permanent neck-down position and both at the same distance from said axis, means for oscillating said movable support to bring said feed molds alternately to a common charging position, means operated in response to the movement of said feed molds to said charging position for closing said molds, means operative when a feed mold is at the position other than its charging position for opening the molds respectively, a form mold mounted on the first named support in permanent neck-up position and with its axis when closed in vertical alignment with the first named axis, neck rings individual to each feed mold and mounted for in version about axes intermediate the respective feed molds and said form mold, neck pins associated with each of said neck rings and mounted for 'inversion'therewith, means positioned adjacent to said charging position for actuating-said neck pins to move them into cooperative relation with said neck rings respectively, means for resiliently urging each neck ring out of cooperative relation with its respective neck ring, a rotary carrier, a plurality of final blow molds on said carrier at equal intervals about the periphery thereof, means for rotating said carrier intermittently to bring each of said final blow molds successively to a common transfer positon with said form mold at which the axis of said form mold is coincident with the axis of one of said final blow molds, a combined blow head and bafile positioned adjacent to said charging position, means to move said combined settle blow head and baflie into and out of cooperative relation with a feed mold at said charging position, means for supplying settle blowing'air through said combined settle blow head and baffle, means for admitting pressure through each of said neck ringsfor counterblowing charges of glass in said feed molds and against said baffle, means including said neck rings eifective when the feed molds are at their positions .away from their common charging position and subsequent to the opening of these molds for inverting and transferring the feed blanks formed therein and presenting them in neck-up position in vertical alignment with the first named axis, means for opening and closing said form mold, means for admitting fluid pressure through said neck rings to expand the feed blanks to the shape of said form mold and thereby to form parisons therefrom, means including'said neck rings for transferring the parisons from said form mold to said final blow molds at the common transfer position, and means for expanding the parisons to final form in said final blow molds subsequent to the movement of these molds respectively away from the position at which they receive the parisons from said form mold.

KARL E. PEILER. ALGY J. SMITH.