US2376602A - Glassware forming machine - Google Patents

Description

y 1945- c. c. KINKER 2,376,602 GLASSWARE. FORMING MACHINE Filed Jan, 20, 1942 11 sh ets-shed 1 May 22, 1945. c. c. KINKER GLASSWARE FORMING MACHINE Filed Jan. 20, 1942 ll Sheets-Sheet 3 INVENTOR- (Ya/luau May 22, 1945. c. c. KINKER GLASSWARE FORMING MACHINE Filed Jan. 20, 1942 ll Sheets-Sheet 4 c. c. KI NKER GLASSWARE FORMING MACHINE Filed Jan. 20, 1943 11 Sheets-Sheet 5 INVEH'IDR May 22, 1945. c. c. KIN KER' 2,376,502

GLAS SWARE FORMING MACHINE Filed Jan. 20. 1942 11 Sheets-Sheet 6 May 22, 1945. I c. c. KINKER I GLASSWARE FORMING MACHINE Filed Jan; 20, 1942 11 Sheets-Sheet 7 MayZZ, 1945.. 7 KMKER v I 2,376,602

GLASSWARE FORMING MACHINE I Filed Jan. 20, 1942 ll Sheets-Sheet 8 May 22, 1945.

C. C. KINKER GLASSWARE FORMING MACHINE Filed Jan. 20 1942 ll Sheets-Sheet 9 MPM $3 m m m Em mom mm mmm Mam b3 mm 1% y 1945- c. c. KINKER 2,376,602

GLASSWARE FORMING MACHINE Filed Jan. 20, 1942 ll Sheets-Sheet, 10

J v i/(1110111752 m \216 g 835 g?! a \j 166 192 2205C) 209 l 21 l o 7 237 825 O .226 as 3 E18 rfigeo y 1945- c. KINKER 2,376,602

GLASSWARE FORMING MACHINE Filed Jan. 2oi 1942 11 S11eets-Sheet 11 204 40a L 405a INVEHTOR Mi 72 m Patented May 22, 1945 GLASSWABE romaine mcnmn Clarence C. Kinker, Montreal, West, Quebec, Canada, assignor to O'Neill Patents Limited, La Salle, Quebec, Canada, a corporation Quebec Application January 20, 1942, Serial No. 427,439

1': Claims. (01. 49-9) This invention relates to improvements in glassware forming machines of the type including blank and finishing oriblow mold tables arranged side by side for rotation about separate vertical axes, and more particularly to machines of this typein which'said tables are rotated intermittently or in a, step by step manner.

" One object 01 this invention is to produce .a

glassware forming machine in which the mold carrying tables are intermittently rotated and in which each blank or parison mold has its bottom, or large end up, with its neck forming portion down, at the charge receiving station, and is uprighted prior to making the transfer to ablow mold while the tables are moving 'at or near their lowest peripheral speed, whereby the various mechanisms for uprighting the blank mold to position with the neck forming portion up, and'ior transferring the parisons 'irom blank to blow molds are positively operated by cam mechanisms.

Another object is to produce a novel and improved baflleplate and blow down mechanism for cooperation with the blank molds of glass forming machines.

A further object is to produce an improved. and simplified mechanism for obtaining individ- A still furtherobject is to produce an interj mittently operating glass forming machine in which the mold charges are delivered to the blank molds during the rest periods and'in which the operations, including transfer of parisons to blow or finishing molds are controlled and operated by cams during indexing periods of the machine and at or near the slowest movements of the machine during such periods.

These and other objects, which will be apparent to those skilled in this art, are attained by means of the mechanism described in the speciilcation and illustrated inthe drawings accompanying and forming part of this application. 3 In the drawings:

Figure 1 is a view partially in section and partially in elevation 01' the blank mold table of a machine embodying this inventioik This view is taken on line I-I of Fig. '7;

Fig. 2 is a more or'less diagrammatic skeleton view partially inelevation and partially in section illustrating the valves and lines for controlling the'application of vacuum. to the blank molds,

the application of air for packing the glass around themouth forming pinand the application of air for accomplishing the bubble blow or parison forming operation;

Figs. 3 and 4 are respectively central vertical and horizontal sectional views on an enlarged scale of the air distributor valve mechanism for obtaining flow of air for packing the glass around the mouth forming pin and to form the finish. Fig. 3 is taken on line III-moi Fig. 4 and Fig. 4

" is taken on line IV-IY of Fig. 3. I

Fig. 5 is, a diagrammatic view iri top plan and discloses the stations of theiblank mold table, the

opening and closing 'of the blank molds, the swinging of the baille assembly to-andfrom operavtivc position and the timing of different parts of the mechanism;

aFig. 6 is a developed view of the cam for raising and lowering the baflle assembly;

Fig. 71s a more or less diagrammatic top plan view 01' a number of ti.- cams entering into the v make-up of the blank mold table of Fig. 1. This view includes a top plan view of a portion of a closed blank mold and its associated neck mold and a view in horizontal section taken on line VII-VII right-hand half or Fig. 1, and illustrates portions of a blank mold and the mechanism for opening and closing the same;

Fig. 8 is a, perspective view oi! the camswhich control the application of vacuum and the bubble blow and is taken as thoughflooking from line VIIIVIII of Fig. 7 in the direction of the arrows; Fig. 9 is a fragmentary enlarged sectional view of a blank mold-unit, the battle assembly and its I operating mechanism and shows a fully formed parison in place in the blank mold. This same mechanism is shown in the left-hand portion of Figure 1.

Fig. 10 is a more or less diagrammatic view looking up toward the under side of one of the neck ring or neck mold units and its operating cam; 1

.Figxil is a view partially in section and partially in eleveation of the blow table oi the machine of this invention and is taken' on I line XI-XI of Fig. 12;

Fig. 12 is a iragmentary top plan view or the blank and blow mold tables of the machine and illustrates the location of the takeout device;

'Flg. 13 is an enlarged detail view partially in section and partially in elevation and shows an open blank mold, a blank or par-ison suspended by the neck ring or mold and ablow mold which is closing around the pari'son adjacent the transfer station or point. 1

Fig. 14 is an enlargediragmentary top plan 1 individual valve and 'table carries six adjustable cam for controlling its air supplies:

'aavaooaf I el ngated into a parison'while oonflnedin blank mold. This is done by formingtherein the usual bubble whichis sufllcient to elongate die is a iengiuiamel sectional view of such is taken on line XV-XV of Fig. 14;

Fig. 16 is a fraginentary detail view, looking up toward the bottom thereof of a of the valve mechanism of Fig. 15; a

Fig. 17 is a view partially in elevation and partially in transverse section of part of the valve mechanisms of'Flgs. 15 and 16 and is takenon line XVII-XVII of Figure 15; Figs; 1a, 19 and 20 are views partially in top plan and partially in section showing successive positions ofthe mechanism for opening and closing one of the blow or finishing molds. Fig. ,18 shows the mechansm in position to apply closing pressure to the blow or finishing mold. Fig. 19

j shows the mechanism in. position to 'hold .the mold closed, but without application of extreme "closing and Fig. 20 shows the mecha-. nism in position to hold the mold open.

Fig. 2 1 is a iragmental and "more or less diagrammatic view-of the periodic motion mechanism by which the machine is-driven; and

Fig. 22 is a fragmental side elevation of such periodic motion mechanism.

The machine chosen for illustrating this invention is adapted to receive measured charges or gobs of glass delivered to it at regular timed intervals by any well known and suitable feeder device. v

The mold tables are geared together so as to rotate in unison and in opposite directions, and,

in order that such rotatlonmay be accomplished periodically or in a step-by-step manner, with such pefiodicmovements of equal length and of equal time duration, I preferably utilize a periodic motion drive' mechanism disclosed in Figures 1 to 9 inclusive of mjk fUnited States Patent 2,298,-

215, granted on October 6, 1942, on an applica-,

tion filed August 2, 1940.

charge'to give 'to the parlson the desired for final blowing in the blow oi mills-mold;

Between the time the blank is completed', and the transier'statton is reached, the parison mold is uprighted sothat when it reaches the transfer station, it is in upright position,"that L. is. with its neck forming Justpriorto the tables st p. at the point, and while the tables are moving at a-relasame.

tively slow speed, the parison'orfblank' is trans-1 [erred to-the blow mold which is then in open posltion'andis approaching thejtransfer point. The blank or'parison'molds andthe molds move in closed paths which-- intersect at e mold ispositively opened by-cam means'leaving the parison Susp ndedbv the neck' ring. blow mold then rclosesaro und the Suspended I; 5 pari'son and the neck iring; is thenpos'itively opened by cam operatedmans and the parlson' is released to the .blow mold as it closesabout the", The transfer is all 'efiected befor'e the tables stop at the station just beyond the trans-' fer point. V I f The final blowing 'ofthe'ware is accomplished I during movement-of the finishing molds iro'nithe transfer point to the discharge point." Dining this time the blo'wn ware has become sufiiciently' v set and self-sustaining to be engaged by the take.-

out mechanism, and I preferably employ a takeout mechanism such as disclosed in U. S. Patent 1,537,963 granted to Frank O'Neill on May 19, A

Since the mold carrying tables aregeared tcgether it is only necessary to employ one of the periodic motion devices of said patent. The blow or finishing mold table is provided with two sets of cam contact rollers for co-operating with the form of device of'Figs. 1 to 9 inclusive of my said patent. By utilizing such a' device for driving this table, I am able to control the'periodic movements of both .tables so that they 'are both accelerated from their stop positions to maximum speed and then'decelerated from maximum speed to the next stop position without appreciable shock to themechanisms involved. .Since each positions. V V e As each blank moldarriv'esat the charging station, the tables are stopped and the blank mold at such station, with its neckend down and its open-bottom end up, receives a charge or'gob of glass which is guided thereinto by means of a.-

stationary funnel. vWhenth'echargehas entered the mold, it iscompacted in the neck ring around the mouth forming pin, first by subjecting the lower end of the mold and neck ring around saidpin to a vacuum, and, shortly thereafter by supplying air under pressure to then upper (bottom) into contact with the upper end of the mold (the bottom end). The neck pin is then slightly retracted and the -compacted] charge of glass is The blank or parison mold table, which as an entirety is numbered '25, is mounted for rotation about a vertically extending column 26 while the blow or finishing mold table, which as an entiretyis numbered 21, is mounted for rotation about a vertically extending column 28, These columns are secured to a part 29 of the base of the machine with which they make tight contact since both columns are hollow chambers for air under pressure.

The blank or parison-fmold table comprises a lower dished spider-like, member 30, an upper 1 table-like member 31 and an intermediate mem- I ber 32. Thesemembers are connected together so as to rotate as a'unit about column and are moldunits, there are six stop supported by an antifriction. bearing l3 carried on a shoulder formed on column 2.8 as shown in I Fig. 2. A ring gear "encircles and is preferably formed as an integral part of lower dished spiderlike member ill. v

' 1 Blank mold'units.

The blank meldone ofwhich-withits neck ring and a portion of its operating mechanism ls shownin Fig. 9,. are carried by inter-' mediate member '32 in'such a manner that each blank mold as it reaches the charging station will have its open bottom end. up ready to receive a charge of glass, and, as it reaches the transfer 0 point will have its neck end up with the parison or I blank in position to be. transferred to ablow'or' finishingmol'd.

Each blank mold unit comprising a partible body mold 35 carriedby a pairof support arms 35 which are pivotally connected to a hinge pin 31, and'a partible neck-ring or mold '38 which is carried, by a pair of support arms 39 which are also pivotally connected to hinge pin 31.

transfer; i

and serve as storage ,scope over a sleeve-like end 33 of the yoke.

Each hinge pin 31 forms part of a turnover unit and is rigidly secured within ears II and ll 01'. head I! of a turnover drum 43, which is included in. such turnover unit. This turnover drum is iourrlaled in a bearing member 44 having its longitudinal axis extending radially of blank mold table 25. A flange 43, extending radially outward from the outer end of the turnover drum,

adapted to engage notches or recesses 41 formed in the lower surface of an arcuate cam member '43 which is secured to a stationary cam carrier 33. This cam carrier is rigidly secured to column 26, and not only supports arcuate cam member 43, but also supports the cams for controlling the opening and closing of the blank and neck molds.

Each turnover unit is arranged to be locked in its two operating positions by means of a lock bar 33 which is mounted for reciprocation within a horizontally extending guideway formed in a bracket later referred to as bracket 93. This guideway is covered by the lower face of member- 32. The outer end 51 of lock bar 53 is tapered and is adapted to co-operate with diametrically. opposed notches 52 in flange 45 of the turnover drum. y

Each lock bar 53 is pivotally connected to the upper end of a lever 53 and such lever is mounted for swinging movement about a centrally located pivot. pin 34. This pin is journaled within brackets 53 carried by spider member 33. Eachlever 33 adjacent its lower end carries a cam contact roller which bears on a stationary cam head as or the pull rodwill move outwardly away carries an annular series of rollers which are I from shoulder 330. This arrangement isprovided in order to take care of any discrepancies in machine work and/or wear of the parts. and provides a yieldable connection between slide block 61 .and yoke 33 forpreventing damage due to excess glass or other foreign matter which From the above it will be seen that suflicient V outward motion of slide block 31 causes the blank 'extending in a counterclockwise direction from 51 rigidly secured to the shouldered portion of column' 23 which carries anti-friction bearing 33. This cam is provided with diametrically opposed lobes 33 and 53 (Fig. 7), which cause each mold body sections, through the agency of spring 33, yoke 83 and links 33, to be moved to closed position as shown in Figs. 1 and 9, and that sufiicient inward movement ofslide block 31 causes the blank mold body sections, through the agency of headed pull rod 55, yoke 63 and links 33, to move to open position as shown in Fig- '1.

Cam I3 is of composite character, that is, extending in a counterclockwise direction from point'13a to point 13b it is merely a plate cam with its surface concentric with-column 23, while point'l3b to point 13a,git takesthe form of a positive motioncam by i in i s ma eup an outer-wall II, with which roller I2 contacts,

in its travel about column 23. As roller I3 contacts with cam 13 while traveling in a counterclockwise direction from point 13a to point "D, the body sections of the blank mold are held in closed position and while traveling from point 13?; to point 13a, said. sections are opened for transfer. of the parison to the blow mold.

lock bar 33 to be moved by its lever 53 to its unlocking position against the stress of coil spring 33, which is interposed between the inner end portion of said lock bar and the adjacent spring supportlBl secured to the hub portion "of intermediate member 32.

Each body blank 35 is opened and closed independently of its associated neck ring, by mechanism such as illustrated in Figs. 1 and '7 and which is partially located within drum 3 of the associated turnover unit. Thismechanism includes a, horseshoe-shaped member or yoke 63 which is spaced inwardly from the blank moldand is connected to, the blank mold body sections by means of links 34. A pull rod 65 which extends through an open ing in yoke 33, has a head 36 at its outer end, and, at its inner end is threaded into a slide block 31. This slide block is counterbored so as to tele- A coil spring 33 surrounds the pull rod and has one end bearing against the yoke and the other end-against a thrust bearing 13 located at the inner'end oi. the counterbore in the slide block.

- The spring yieldingly holds the head 33 of the pull 33 so that when the full throw of the cam is reached,

Neck ring 33 is normally heldclosed by means of'a coil spring 15 which connects its support arms 39. Opening of the neck ring at regular time intervals is obtained by means of a spreader 'head 16 which is located within complementa y depressions in the adjacent faces of said arms This spreader head is formed at one end of a pin '|1 which is journaled for oscillation or rockslide within gibs ing movement within a vertically extending bushing 13 pressed into a support bracket I3 which is keyed to the lower end of hinge pin'TI, and

also bolted to flange 43 of the turnover drum. A spreader operating lever 33 has one of its ends secured by key 33' and clamp 33" to the end of :pin 11 remote from the spreader head. The opposite end of lever 33 is connected to a lever 3| by means of an adjustable turnbuckle 32. Lever 3| is pivoted to a post 3la carried by support bracket 19. Between its ends, lever 3| carries a roller 33 which is arranged to cooperate with a cam 34 in opening the neck ring at the proper time and in the proper manner.

Cam 34 is secured to cam carrier 43 adjacent the transfer point (Figs. 1 and '7).

Support bracket 13 carries the plunger unit which includes an outer vertically extendin sleeve 35, fitted into an opening in bracket-13. and whichis provided with conduits 33. A hollow plunger 31 which at its upper end carries mouth forming pin 33 extends below sleeve 33, and, at its lower end is provided with a nipplelike member 33 which is flanged as at 33 and confines and supports a coil expansion sprin ll.

rounds mouth forming pin 33. The plunger is also providedw'ith 'aseries of openings 33 which 4 connectwith channelsvll'when catedneartheupperendoi'sleeveli Spring ll retracts hollowplunxer l1 with re-' in hubportion 62 of table 82. p -i Column '26 is provided with a series of openings th plunger inthepositlonshowninmfl. 7'

' aavaeoa varied by a needle valvellll, I v

Hollow ring I I9 is supplied withair under pres- Downward movement of me;- u a by a flange ll and a cooperating shoulder spect to sleeve ujndnec: ring n such actionis permitted by the means hereinaitertobe described.

closed by a coil spring III, which surrounds its bears on an abutment Illa secured to said stem; A plunger [I5 mounted to slide vertically within a guide I06 has a stem I01 threaded into a vertically extending opening-Yin linewith valve I stem IMF: Stem Ill, which-is in vertical alignment with valve stem I is provided with a cross pin lnia b means of which said stem may be manuallyturned in order to adjust thespace or gap between the lower end of valve stem I and the upper end of stem III. A lock nut and lock washer are provided as shownin the enlarged portion at the right of Fig. 2, for locking stem I01 in adjusted position.

stem I M below the valve casing or housing, and

Vacuum valve I02 is normally held in closed I position by a coil spring I08 which is confined between the top 01' valve I01 and the top of valve housing llll. Aplunger m mounted to slide yer-1 tically within a guide III has a stem Ill threaded into a vertically extending opening in line with valve-stem 2. Stem III', which is in vertical alignment with valve stem III, is also provided with a, cross pin Illa by means of which said stem maybe manually turned to adjust the space or gap between the lower end of valve I stem H2 and the upper end of stem Ill. Stein m is also provided with a lock'nut and lock washer as shown in the enlarged portion at the against the stress; of its spring 10L 4 Each of the hollow arms 56 performs the twotold-junction of establishing communication between'valve housings (and llll-..for the-air and vacuum valves respectively, and the tubular plunger 81 which communicates with the mold respect tothe neck ring; i It will be apparent that 'ooil'sprlng 8| re tracts or withdraws plunger 81 and thereiore mouth forming pin 88 from operative position .is made adjustable or, in other sure by means of pipe III which connects with by cap ill air distributor; head 122 carried This distributor will be describedjater. 1

7 Plunger llli in line with thef stem of air' control 7 1 valve llilljcarries a roller; lzllwhichcooperates with a'cam lflitoraise the valve'to openiiosition y at the proper timejagaiiist'the. strlessfot its spring III. Similarly-plunger ill! which is located' below andin line withthe stem oi vacuum valve .102 carries a roller Ina which cooperateswith a cam l25to'opensaid valveat the proper. time cavities by way of channels "92'? and of controlling the position of said plunger andthereiore the position of the mouth forming pin with within the neck ring when lever 98 and the blow head or sealing member I26. carried'thereby are; not pressing plunger 81 to the upper limit of its travel. It will also be apparent tha'ttheposition of arm 96 directly determines the position of the mouth forming pin.

, Movement of hollow lever arm 9} is obtained by means or a stationary cam I21 and a modified bell crank lever l28 with a cam contact roller I29 at .its lower end. Lever 128 is plvotally mounted on a pad which is secured .to member 30 a of the blank mold table; At its upper end, this lever carries a sliding plunger I30 which is t connected to-lever arm 96 by means'oi a link Ill. The plunger is yieldingly'held to the outer limit of its travel by a coil spring I32 which is contained within the plunger housing 128a. torm- Q ing the upper arm of the lever.

With the parts inthe position shown at the left-hand side of Figure l and in Figure 9, it must right 01 Fig. 2 for locking said stem III in ad justed position,

Each vacuum valve housing III is connected to the interior of column 26 by means of a pipe I I3 and an annular chamber H! which is formed the mouth forming pin 88 down to'the bubble H5 in line with annular chamber H4 so that as the blank mold table, made up or vertically spaced members 30, 3| and 32, rotates about column 28. pipes I ii are in constant communication with the interior of said column. This column 28 is sealed at its top by means ci ia cap H8, is tightly secured to base 29, and, bymeans of a pipe H1, is

constantly connected to a suitable vacuum p, not shown. Hollow column 28, therefore, facilibe assumed that'pin "that iormsthe initial 3 opening' in the parison had been moved by hollow lever arm 96 and lever Illinto mouth forming position within the neck mold; that vacuumhad been. applied through arm 96 and hollow plunger 81 to the neck-ring and body mold to pack the glass around the mouth forming pin, and that coil spring 9| had functioned-to move blow position shown in these figures;

It must also be assumed that the baflle plate III has closed the upper open end of the blankmold, that the glass packing flow has taken place, and that the bubble blow which elongates the parison has also been completed.

The baflle plate formspart of a bame assembly which is carried by a lever arm I84. This lever tates rapid application of vacuum to the interior of swinging hollow, arm 96, when the interior of terior of column valve III. v Each air valve housing III by means 01' a pipe 26 by the opening of vacuum I I8 is to a hollow distributor ring 9 which surrounds and is carried by hub portion it of table The effective area of each pipe H8 said arm is placed in communication with the inarm in transverse section resembles an ih-\ verted U and so supports the baiile assembly'that it may be moved vertically relative to the blank mold. "Means, which includes an arm I", is

employed to swing lever and Bland the assentbly carried thereby horizontally to diflerent. po sl-- tions as shown in Fig. .5 or the drawings,

The bafle'dsse mbly The baflle assembly includes an outer case I36 which in the main is cylindrical and; which, sub- 1 words m y be stantially midway its length, is provided with oppositely positioned hollow .pads 'for receiving pins I34a (onebeing. shown by dotted lines in Fig.0) by means of which said case is pivotally connected to lever arm I34. This lever arm at its outer end is bifurcated so as to straddle the outer end of arm I and its furcate parts are provided with openings d'or receiving said pins, 7

Outer case I35 is mounted for limited vertical sliding movement within upperand lower cylindrlcal portions I31 and I35 of arm I35. Threaded through an interior shoulder-like portion I35 or outer case I35 isa'tubular stem-like member I40. This stem-like member adjacent its upper end is internally threaded to receive the hollow threaded stem I of abolt I42. v

The baflle plate is connected to the lower end of stem-like member I40 by means of a nipple I43. The ballle plate comprises a bottom former portion I44 having cross channels I45 which connect with the hollow interior of-nipple I43, and therefore with the hollow interior of the stem of bolt I42, and vertical channels I45 which are located beyond the boundaries of the bottom former portion I44 01' the baiiie plate and connect with cross channel I45. I

A name plate guide I41; formed. in thenature or an inverted cup, surrounds the baflle plate and is mounted on the lower end portion of stem I45, for relative sliding movement with relation to said stem andtherei'ore with relation to the batfle plate. An inturned flange I45 on the upper endof the baille plate guide co-operates with an outwardly extending flange I45 at the lower end of stem I40 to llmit'the downward movement of the baffle plate guidewith relation to stem I40 and the baflle plate. v

' A coil spring I55 surrounds the lower portion of stem I40, and, being confined between the upper end of baflle plate guide I41 and a horseshoe-shaped washer or collar I 5| which surrounds stem I40 below its external threads (see Fig. 9), tends to yieldingly hold the baflle plate at the limit 01'. its outward movement, at which position its inturned flange I45 is in contact with flange I45 The head of bolt I42, below its wrenchportion- I42a, is cylindrical and is provided with a circumferential groove I52 and one or more cross chantopo1hollowcolumn25.

The. threaded connections between stem-like member I40 and the outer case on the one hand,

and between the hollow stem of the bolt and stemlike member I40,.on the other hand, permit stemlike member I40, the baflie plate guide and the baflle plate, to be adjusted vertically to diflerent normal positions in order to function with blank molds of dillerent lengths.

It will be noted that the blank mold isprovided with an upstanding beveled annular flange which surrounds its bottom opening and that the cooperating face I55 of the baflle guide is so formed as to make a combined sealing and clamping flt with such flange and thus locks the halves of the blank mold together.

It will be apparent that the bottom former portion of the baflle plate may be of any desired con tour so longjas the battle plate when in contact with the mold bottom, seals the interior oi the.'

mold for the bubble blow.

Baflle assembly supporting and operating mechanism As above pointed out, the baiiie assembly is supported by lever arm I34, is moved vertically to and from operative position by such arm and is swung horizontally to and from operative position by lever arm I35.

Lever arm I35 is mounted for horizontal swinging movement about a hollow cylindrical bearing 7 member I55 which member is bolted to upper moldtable member 3I (see Fig. 9).

Lever arm I35 has bolted to it at its lower end a horizontally extending gear segment I which meshes with a rack member I5I (Fig. 5). The rack member is yieldably connected to a slide I52 by means of a bolt I53 which passes lengthwise through the rack member and is threaded into slide I52, A coil spring I54 surroundsthe outer end of bolt I53 and is conflned between the end of the rack member and a nut I55 threaded to the outer end portion or the bolt.

Slide I52 is mounted for sliding movement radially of the blank mold table and within a guideway I55 carried by upper member 3| of the table. The slide is provided with a roller I51 which moves in a double-faced stationary cam I55 termed as part of cam carrier I55 which is secured to column 25.

Lever arm I34 is pivoted to a post I10 by means of a pivot pin I1 I which extends laterally through post I10 and into openings formed in the side portions oi lever arm I34, which side portions are provided-with outwardly extending pads I12 into which the ends of pin "I extend.

As shown in Fig. 9, the head portion of post I10 is held in contact with the top of the cylindrical bearing member I55 ior lever arm I55, by means of a coil spring I13. v This'spring surrounds the lower reduced end of said post and is confined 1 in place by. an end thrust washer-like member bearing member I15.

I14 and a washer-like retainer and end thrust Coil spring I13 permits some vertical spring-restrained movement to post I10 and provides a safety device which allows post I10 to move upwardin case baflie plate guide I41 fouls the blank mold flange I55 or in case some foreign object prevents the baflle guide I41 from moving down into clamping position around flange I55 of the body blank mold,

Lever arm I34, at its inner end, carries an adlustment screw I15. Thelower end of this screw bears on the top of a plungermember I11 which is mounted for vertical sliding movement within .a bushing I15 carried by. member 3| of the mold table. At its lower end, plunged I11 carries a roller I15 which bears on the upper surface of a stationary cam I50. The vertical movement'allowed plunger I11 is controlled by a pin and slot connection as indicated by dotted lines in Fla. 9. Vertical swinging movement of lever arm I34,

occasioned by cam I50, is yieldingly resisted by a I coil spring- I5I which is carried in a pocket formed in arm I35, and said spring bears against a pad formed on the web portion of lever arm I34; the upper end of the coil spring being centered by a 7 pin I52 which is threaded through said pad.

Cap 5 which seals the top of column 25, is

a point eentdls 'bese' to itstop. ls pmvidedwlthedrelnnfei entlalme lllandwlth an a u larrehamber-wlthiwhlch 121 enh- 'nects.1.--Saldchamhesls thuseohnectedwlth the Itlon of the slide block, surroundsportion of the;

mpples l2toomeefthenimlesl55. I I

supplyuofalr Itmkr This'plpe is pn'o PM a is oohchem-"mu mile about column as .eaeh-of-flle Ill-end I. J ,wlth'eroove "lend Intends to -amleonnects with .a. I81; V 7 V bored on a. taper tom the taneredio'f-tnisto-epnlcal surface two ertlcmy V V iltha an ularpocketo: rlem-ession l9l;ln lts.lnterloes1n-aee. which reg-' Men with elreumfel-mtlal I to form annulmchamber tormedhr glng member ll! which is meaty thehllb' bortlon c2 of mem- 'berIZotthe "gout,

table as above pointed Sleeve m gin; level import-m is provided" 1 it spaced. port; 601-. h of these portals 'tappeito receive a. nipple I92. Hose liileonneetsald n p II! with nipple Iii of other em uppliedwilfhalrumlel throughitsme m: mm memherwlll, m

' mm iseonnected a. mum souree r 30 zzrbetween m into r portion) on mu all, slidlng- V V l lo 22l.'!!l -2l1' and spr ader lll bytmet ns'of llelffloal hinge directly to a 2|: (Flg. 13) whichls slidingly nested-t a slide block III -CHL'IS) vlhich earatlng omnectlon therebetween 1a; l9'a nd A ieleeve 22i telescoplnsiover a. porrod and spline 213. This sleevecarries a, spreaderfii designed for operatlve' mgflzement with extensions-2260f] levers!" (Figs,- 18 and.

19). A coil spring lfl'whiehenclrclu coil spring 22: lsjflisomelosed by e an end bears against end ofithe tubflluportlofi of slide hloekill and'an'mternal shouder 228 of 25 sleeve m (Fig. 1-9). spa-mg 2211 yieldlnglyholds the spreader'mdslidebbckln their maximum r. v U I llfli-the slide blockf 76pm "tofm'o fi ee spreader with extenw 1 signs user-lev rs 215-83 in" 5, andpreventmovement "of the ports albout pId hottom I of threemfls. plate holder III which is "awhaped'flet plate about five loeighths of'an angle "Ill. illa fql'llls, I baring-f0:- hurl-u Ill arnflllb is a eameontiet rollex 22! ldeplied-lfl'u'eengage-- m xm a. mgonu fcem 222411;. 11). A eollsprlng'ifl enclreles Ill, is in terspaced relation and provides o er cmderodslurr 1 m (ne u -10w.-

meehahismlsmadeup This mold bot'- [451m whichJs-heldin pheeby means 7 IS kBo ttQniplug 282 I ..faboyef m i, 2 an A whlehkln u'bone 1 law memberzsnrme astute lower; maul-a a n A at m dt'the periodic motlondrlve mecha- 4 which '1, w. m meld my l s -wh A by u r r 5 i 1 moldunit lflis'll'ovlde'ildgitg i Y m'iit's. each of which an 1 3 -m P i is nmnbm zmuemmeam m-oo WM I M m I on the mold Bach mm m ivhl'eh tween s fli l u- 9 n" mm plate holde'rll', and the. m 1: mm wnfinkm u mw nggbl m. -bellermklever-Ill whlchattheotherendc'ar- 2a., mold. mum-mules h mmmller -e s to mate-with ,a flltomlseandlowerthe blow Y heedeti-eglmrtlmeintervfls. m 'of e, lime 'l helilowhead fl'lgfi) includesimold sealing Curler!" =pm'tlm2ll whlch'ls adapted to rest upon the ted by a'lnnd upper end ofthe finishing mold ll 'and wh'c h iis-temovably'sewredtothelowerendofanouter I x mmymmaeembummm II'L- Fitting: V V within outer; mhulanmember I" is 9' tube-like mwhlehthamold-opqnlnl-md cloelng meeh- Heel-34!. Thljsllneratltsumerend lam-ended enlmilsmounted. e "with Jane! lll' whlch V end Ill are b mlzmtk 30. by whieh the 2,870,002 bears against the upper end of the outer tubular a knob-like adjusting member 252. Intermediate its ends, member 252 is provided with a flange 258 which forms an abutment tor a coil spring and 18. Housing part 218 has a cylindrical bore tor receiving a piston orfslide valve made up oftwo parts 288 and 288a. Housing part 218' alsohas two ports 28l and 282 to which pipes 218 and 211 are respectivelyconnected. The stem end 01' valve part 288, by means of a link 288, is connected to the free end of a lever arm 284. This lever arm is mounted on a post 285 secured to member 288 of the mold table, and, adj acent its position of stem-like member 252 with relation to the hollow plunger.

Hollow plunger I at its lower end carries a bottle top contact member or holder 251.- This contact'member is mounted for limited slidin movement within the plunger and is yieldingly held at the limitof its outward movement with relation to the plunger by a coil spring 258. This contact member is provided with a channel which extends therethrough from end' to end, and

its lower face is contoured to fit the upper end i of the blank or parison.

A, flexible air hose 259, by means or an elbow 288, nipple 281 and a channel 25l' which passes downwardly through head 288, connects with the interior of the blow head above the eflective portionof plunger 251. A flexible air hose 282 by means of an elbow 253,.nipp1e 288 and an opening 255 formed in one side of plunger 25!. connects with the channel which extends through contact member 251.

Air under pressure for blowing the parison to finished form is supplied through hose 282,

while air under pressure for moving the plunger 25l down until its contact member 251 presses against the top of the blown article, and, steadying the same, holds it in position on bottom member 282 of the .blow mold, during opening 0! the mold and transfer of the ware is supplied by air hose 259.

Hose 259 connects with airbox 24! while hose I' 282 connects with air box la. Boxes 24} and 241a and the hinge pin (not shown) upon which the blow head holder 288 is pivotally mountedf are carried by a yoke-like member 258 which is secured to or forms part of upper member 281 oi the blow mold table.

Column 28, about which the blow mold table rotates, is sealed at its lower end by base 29 of the machine, and at its top by'a cap 281 which aims part of an arm 258 of the take-oil device Airunder pressure is supplied to the interior of column 28, which serves as an air storage chamber, through a connection 218, and said column,

center said lever arm carries a cam contact roller 288, which cooperates with a cam made up of parts 281 and 288. Cam part 281, as shown in Fig.'14, is. rigidly secured to column 28 by a key 289, while cam part 288, is supported by part 281. Cam part 288 is provided with curved slots 298 for receiving pins 291 carried by.cam part 281. This slot and pin connection between the cam parts permits relative angular adjustment of cam part 288 with relation to cam part 281'.

Part' 288 of the valve member, which is prevented irom turning within the bore of the valve casing or housing by link 283, has a reduced portion 288!) which joins part 288 with an abrupt shoulder 292. Portion 28811 adjacent its outer end is externally threaded to receive the internally threaded end 298 of valve portion 288a. The inner end 298 of valve part 288a forms an abrupt shoulder and the space between these shoulders forms the port of the valve member.

The outer end portion of valve part 28812 is reduced in diameter as shown at 295, passes through an opening in the end oi valve housing part 219, and at its outer'e'nd is provided with an adjusting knob298. By means of this knob, valve part 288a may be screwed in or out with relation to valve part 288. In other words, by adjusting the position of part 288a. with relation to part 2880. 'Pin 291, therefore has end portions which extend beyond the surface of part 295. A collar 298 loosely surrounds part 295, has a depending portion 299 iormedwith wings 388 which underlie the edges of housing portion 219, and radial slots 88l in its end which faces pin 291. A coil spring 882 surrounds part 295 of the valve member, and, bearing at one end against collar 298 and at its other end against the outer endoi valve housing 219, part 219 yieldingly forces said collar toward the valve part 288a. From .this construction, it will be seen that as adjusting knob 295 is rotated, coilspring 282 causes collar 298 to lock part 288a of the. valve in the position to which it is adjusted.

Adiustment and operation of the machine Each blank mold reaches charging station I 1 (line A) in inverted position (neck down) with its in line with an annular groove 2" formed in the hub portion of table member 288, is provided with a series or openings 212 which establish communication between the interior of the column and said groove 2". Six equally spaced pipes 218 connect with said groove, and each, ex-

tending upwardly through a hole in member 288- of the mold table, connects with a port 218 of a control valve, which as an entirety is numbered 215. This valve controls the supply of air by way of pipes 218 and 211 to said air boxes.

The housing for valve 215 is made in two parts 218 and 218 bolted together as shown in Figs. 14

bottom up as shown inFigs. 1 and 9, but its baiile assembly instead of being above the mold as in said figures, is out of register therewith, as shown in Fig. 5 so that a mold charge may be dropped from any suitable feeding device into the open' mold. A funnel (not shown) which is carried by a support arm 889 secured to the base 29 of the machine guides the charge into the open mold which is then stationary since the mold tables stop as each blank mold reaches charging station I. This is the beginning of the first indexing period.

When the blank mold is atrest at charging station I cam I21 through lever I28 and hollow son forming blow can .sembly is raised high mold and is readyto -IIIis a stop position and drum again takesplace the blank mold closed,

Each roller m is located 12% behind the center line of its blank mold. In other words, each roller I23, during rotation of the blank mold blank mold.

In order to permit plunger I1 to be moved by coil spring ill down to the whereby contact between forming pin 88 is broken, a cam patch [21a (Fig. 7) is employed. This cam patch is slidable in a circular slideway 300 secured to cam holder 3M and is held in place by means of bolts which pass through the cam patch and slots 3" in the slideway.

This cam patch can-be adjusted so as to start movement of lever arm 86 down to the position shown in Fig. 1 (left-hand side) after station I. This adjustment is provided in order to obtain time for After rpller I29 passes it engageswall I212) of cam I21 and this wall maintains contact between sealing head I26, carried by lever arm 96, and nipple 89 of plunger 81. This contact remains until 120 after charging station I, where roller l2! engages section l2lc of cam I21. Lever arm 96 continues to move down until it reachesthe position shown at the righthand side of Fig. 1, so forthe blow mold mechanism at the transfer int. The mechanism controlling the bubble or paribe so adjusted that said blow ends 21 before the blank mold unit reaches station III. At 21 before station III or 99 be position shown in Fig. 9, the glass and mouth yond station I (line A), the bailie plate is ready to rise out of contact with the top (bottom) of 11 more of tablev the blank mold, and requires travel to rise completely, at which time the blank mold will have traveled 110" from station I. Ten degrees before reaching station III the baifle asenough to clear the blank swing away counterblockblank mold. Station the end of the secwise from registry w the 0nd index from charging grees after start of indexing or 122' tion I, the turnover drum is unlocked and is ready to be turned over by engagement of its rollers 46 with cam 41. The turnover drum'of course uprights the blank mold, bringing the parison into upright position with its neck uppermost. The drum'turning over operation requires50 of ta.- ble travel and the drum is completely turned over 172 from charging station I or 8 prior to the 7 Locking of the turnover H end of the third index.

177 after charging station I or 3 before the end of the third indexi s pe Eight'degrees prior to station IV, the end of the third index, pressure of spring 89, holding will be practically reof pull rod 65 willbe ed and the head lens ottouching shoulder a touching or iust short 7 of yoke 63, the'blank mold remaining closed with the neck end of the parison up. ,At the start 01 the fourth index. the, blank mold will begin to open and will be fully opened when it reaches line J, leaving the parison suspended by its finish in the neck mold. a

The contour of cam 14 is such that the opening movements of the blank mold will allow clearance of the finishin or blow mold table 21 when the blow mold closes around the parison suspended by the neck mold which surrounds its station I. Two debeyond sta- I table, lags 12 /2 behind the center line of its proper set 01' the finish. through the cam patch .4

that clearance is allowed At line J, that is 232' from charging station transfer of the parlson to the blow mold is completed. Opening of the neck ring is accomplished by the outward radial movement of roller II occasioned by cam 84 (Fig. 7) This action causes spreader head 16 to rock and spread the neck mold halves to release the parison to the blow or finishing mold, and prevents shear action between the neck ring and the blow or finishing mold. The entrance angle of cam III is very slight in order to provide this loose holding of the parison by the neck ring. Final release of the parison by the neck ring occurs at line J, so

that the seams caused by the blank mold will match those made by the blow or finishing mold, thus preventing the, possibility of two seams in the finished ware. This also insures the proper matching of oval or flat-sided parisons with the -flat sides oi the blow or finishing molds, when such articles as flasks or medical containers are being made. It, of course, will be understood that wider opening of the neck ring will be necessary for wide mouth jars, than for beer bottles or the like, and, to insure that proper opening of the neck ring will be eifected on line J by cam 84, this cam is secured to stationary cam carrier 49 by means of slot and bolt connections, so that its angular position can be adjusted; said slots being numbered 840. '(Fig. 7)

Turnbu'ckle 8! permits the making of diflerent sizes of ware in the difierent blank molds of the same machine without changing the position of cam II. since by means of the turnbuckle, the spacing between lever arms 80 and II can be varied to suit the ware being made in anyparticular blank mold. When the distance between these lever arms is shortened, the action of cam 84 will be delayed due to the fact that roller 83 will contact the entrance. contour of cam 84 higher upon its angle. In other words, the shorter the distance between lever arms 80 and II, the more space there will be between roller 83 and the I minor radius or cam Ill and consequently a delayed action in opening'the neck ring. This means that the turnbuckle will allow just enough separation of the neck ring parts to release the sible to make diiferent diameter and diiierentparison on line J. Thus, individual adjustment for each mold is obtained and this makes it posshapes of ware at the same time, and to transfer or release the parison at the same point, that is on line J. j

Line J is the linethrough the centers of the blank and finishing mold columnsfhnd is 8" prior to the end'oi the fourth index or 232 from chargingstationI. v At 304 from charging station I, or 4 beyond station VI (end of fifth index) the blank molds are closed and at 318 beyond charging station I, the molds are locked and full pressure of coil spring 69 is applied. At 303 beyond charging station I,,lob'e 58 of cam 5Tv causes the turnover drum to be unlocked, thus allowing the turnover drum and the blank mold carried thereby to be reinverted by'engagement or its roller with cam Three hundred eighteen degrees after charg-

Images