US1502561A - Machine for making bottles, etc. - Google Patents

Description

Emil 22, 1924. 1,5025% w. E. GLASPEY MACHINE FOR MAKING BOTTLES, ETC

Filed May 29, 1922 s Shget-Sheat 1 22 l 4/ a V N j Mama Juh 22,1924. Lsozssa W. E. GLASPEY 1 MACHINE F03 MAKING BOTTLES,.ETCI

Filed May 2.9, 1 22 s sheat s-Sheet '2 m Q) m l m N W N Y m GI \N.

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W. E. GLASPEY MACHINE FOR MAKING BOTTLES, ETC

Filed May 29 1922 3 Sheets-$11682 3 Federated July 22, 1924. v

inure!) STATES PATENT OFFICE.

WARREN E. GLA SPEY, OF BRIDGLTON, NEW JERSEY, ASSIGNOR 'I'O SPRING STOPPER COMIPANY, OF NEW YORK, N. Y.,

A. CORPORATION OF DELAWARE.

MACHINE FOR MAKING- IBOTTLES,

Application filed May '29,

To all/whom it may concern:

Be it known that I, WARREN E. GLASPEY, aeitizen of the United States, residing at Brid 'eton, in the county of Cumberland and tate of New Jersey, have invented a new and useful Machine for Making Bottles, Etc, of which the following is a specification.

This invention relates particularly to machines for making bottles, or similar containers, which are adapted to receive threaded stoppers, or stoppers equipped with thread segments; and the primary object of the invention is to provide an improved machine for the purpose indicated, which is capable of large output, which reduces wastage. to a minimum, and which is economical in operation.

The improved machine, in its preferred embodiment, is adapted to provide the bottle or container, within the mouth ortion, with lugs, or thread-segments, WlllCll are adapted to be engaged by threads or threads'egments With'which the stopper is provided. The stoppers may be made of glass or other suitable material.

The invention is illustrated in its preferred embodiment in the accompanying drawings, in which- Figure 1 represents a broken plan sectional view of a bottle-making machine embodying the invention; Fig. 1 a broken elevational view showing the upper partof the main standard of the machine, and a blow-head mounted thereon; Fig. 2, a broken elevational view of the improved 'mac-hine; Fig. 2, a broken elevational view showing a modification of the device for elevating the mandrels, in succession; Fig. 3, a broken vertical sectional view taken as indicated at line 3 of Fig. 7 Fig. 4, an elevationalview of a mandrel-tip employed; Fig. 5, an enlarged edge elevational view ofone of the sheathable levers with which the mandreltip is equipped; Fig. 6, a broken elevational view, partly in section, showing a mold, the associated mandrel, and the means for elevating the mandrels; and Fig. 7, a view similar to Fig. 6 but showing the mandrel in the elevated position.

It may be stated preliminarily that a bottle-making machine of the general type illustrated is known, such machine involving the use of a rotary mold-car- 1922. Serial No. 564,597.

rier having invertible molds mounted on the carrier. The present invention relates particularly to the provision of means in connection with such a machine whereby bottles may be produced which have the interiors of their mouth portions equipped with lulgs or thread-segments. It may be added t at in the construction herein illustrated the rotary mold-carrier is equipped with revoluble mold-supports which serve to invert the molds and then right them as the molds are carried in their orbit; a mandrel is associated with each mold, the mandrel being provided with sheathable levers which have the edges of their upper end portions equipped with recesses which provide the matrices in which the lugs or threadsegments are formed; a local mandrel-elevating device is provided at or near the glass-charging station, this deviceserving to elevate the mandrels, in. turn, before the glass-charging operation is performed; and a local mandrel-lowering device is provided for lowering the mandrels, seriatim, as the molds pass in turn, from the glass-charging station to the bubble-blowing station. At the intermediate station shown in Fig. 1, the glass-charging operation is performed after the mandrel has been elevated; and at the next station the bubble-blowing operation is erformed after the mandrel has been lowere At the intermediate station mentioned, a blow-head is employed to force the glass down into the lower portion .of the mold so that it will form properly about the tip of the mandrel in the neck portion of the mold. Bot-tle blanks, or parisons, are formed in the machine illustrated in the accompanying drawings; the molds are, in the operation of the machine, inverted and opened and the parisons or bottleblanks are transferred to a blowing machine; andthe final operation of blowing the bottle is performed in the machine last referred to, no illustration ofsuch machine being required for the purpose of the description of the present invention.

In the embodiment of the invention illustrated, A represents the base of the frame, from which rises a stationary shaft or column A; B, a rotary mold-carrier having revolubly mounted thereon a series of moldsupports B upon which are mounted molds B B a large gear through themedium of which the mold-carrier B is rotated, so that the molds will be carried in an annular path or orbit; C and C, stationary cams which serve to open and close the molds; D, a stationary bevel-gear segment which serves to rotate the mold-supports and invert and then right the molds as they are carried through their orbit; E, a tubular mandrel associated with each mold, each mandrel being equipped at its lower projecting end with a head or cam-member E; F, a mandrel-elevating device located at the glass-charging station; G, a mandrel-lowering device located between the glass-charging station and the bubble-blowing station; H, a stationary cam serving to hold the mandrel in the lowered position during the bubble-blowing operation; I, a bubble-blowing device located beneath the path of the molds; and J, a blow-head carried by the upper portion of the stationary column A and disposed above the path of the molds, the blow-head 'J being located at the glass-charging station.

The frame, which comprises the base A i and column A, may be of any suitable con struction. The fixed center column A serves as an axis about which the mold-table B, actuated by the gear B turns; and the column A serves also to support certain mechanisms, including the blow-head which is employed for blowing the glass down into the mold so that it will form properly about the tip of the mandrel in the neck portion of the mold. The blow-head J employed for this purpose is of the usual construction, and operates in the usual manner.

J The mold-table is given an intermittent or step-by-step movement in any desired manner. The mold-carrying means comprises the table B and the series of mold.- supports B arranged thereon. Each mold.- support comprises a hollow trunnion or gudgeon 1 and a disk or face-plate 1 formed integrally therewith. The hollow trunnion 1 is journaled in a divided bearing-box 2 which is securely fastened to the table B.

Each mold B comprises a pair of main mold sections 3 and a pair of ring-mold sections 3. These sections meet in a vertical plane and are provided with arms 3? and 3, respectively, which are connected at their inner ends with a pivot 4 carried by lugs 4 which project from the face-plate 1. Thus, the mold sections are capable of separating at a plane containing the axis of the mold.

The mandrel or plunger E associated with each mold works through a sleeve 5 which is secured in a tubular head 5 carried by studs 6 which project from the face-plate 1. The shank of the bracket which comprises the ring 5 is equipped with perforated lugs 5 which are mounted on the studs 6. The tubular portion 5 of the bracket is thus staunchly supported on the studs 6 and may *be adjusted thereon, if desired. Any suitbore 8.

able securing means (not shown) may be employed. The tubular portion 5 of the bracket is located directly below the mold and is provided at its upper portion with a peripheral flange 5 which interlocks with flanges with which the ring sections 3 of the mold are provided. The sleeve 5 is secured in the ring or tubular member 5 in any desired manner.

' Above the sleeve 5 is a chamber 7 which communicates through a passage 7* with a mold cavity. The mandrel-tip is adapted to project snugly through the passage 7. The mandrel-tip is designated 8. It is provided with slots 8 in which are mounted a pair of levers 9. The levers 9 are mounted on the pivots 10 which pass through perforations 10 in the levers, the end portions of the pivots being supported in the walls of the mandrel-tip 8. The mandrel-tip is provided at its lower portion with an enlarged bore 8 and above this bore with a smaller The mandrel is provided with a tubular shank 11 with the lower end of which the disk or cam E is securely connected. The shank 11 has an enlarged upper end 11 which is adapted to work in the enlarged bore 8 with which the mandrel-tip is provided. Extending horizontally through the head or enlarged portion 11% is a stud 12 whose extremities project and work in vertical slots 13 with which the walls surrou iding the bore 8" of the mandrel-tip are provided. The smaller bore 8 of the mandrel-tip serves as a chamber for a coil spring 14 which is confined between the mandreltip and the head 11 of the tubular shank 11.

Thus, there is lost-motion connection between the tubular shank 11 and the mandreltip; and the spring 14 tends to hold the mandrel-tip in the elevated position with respect to the mandrel shank shown in Fig. 6.

The lower ends of the lug-forming levers 9 are provided with cams 9 which coact with cam recesses 15 with which the head 11 of the tubular shank 11 is provided. \Vhen the mandrel-tip 8 is projected with relation" to the mandrel-shank, the cams cause the upper ends of the levers to be sheathed within the slots of the 1nandrel= tip, as shown in Fig. 6. The outer edges of the upper portions of the levers 9 are provided with recesses 9" which are adapted to form internal lugs or thread-segments on the inner surface of the bottle mouth, as shown in Fig. 7. The upper portion of mandrel-tip is suitably shaped. to give the desired shape to the mouth of the bottle} and the outer edges of the upper portions of the levers 9 are shaped to correspond with the shape of the mandrel-tip when the levers are in the operative position. The mandreltip 8 has a reduced portion 8 which is adapted to fit in the opening 7 leading to the mold cavity, when the mandreltip is in the elevated position. The levers are corres pondingly shaped to complete the contour when the levers are in the operative position. The mandrel-tip is further provided with a horizontal shoulder 8 which is adapted to strike against the bottom of the mold and limit the upward movement of,

the mandrel-tip when the mandrel is elevated.

Through the tubular part 5* and the sleeve 5 extends a plunger guide 16 in which works a'spring-pressed pointed plunger 16 which is adapted to engage a lateral recess 17 with which the mandrel-tip 8 is provided. The pointed tip of the plunger 16 is adapted to work in a vertical slot 18 when the mandrel-tip is forcibly moved.

The glasscharging station is designate S and-the bubble-blowing station is designated S The mandrel-elevating device F is located beneath the path of the molds at the glass-charging station. The device F preferably comprises a plunger 19 operated by a piston 19 located in the cylinder 19*. Theplunger 19 is equipped with a head 19 which has a channel or T-slot 20 extending horizontally therethrough. As each mold is carried to the glass-charging station, the cam-disk E of the associated mandrel enters the channel 20 as shown in Fig. 6. When the machine comes to rest, the plunger 19 is elevated to elevate the mandrel to the position shown in Fig. '7. After the glasscharging operation the charged mold is carried to the bubble-blowing station, the camdisk E sliding out of the channel 20 as the mold 13 carried away from the charging station.

As the mold approaches the bubble-blowing station, the cam-disk E engages the mandrel-lowering device G. The device G is mounted on a standard G carried by the frame-base A. The device G is provided with an inclined T-slot 21 which affords overhanging inclined flanges 21. The camdisk E of the mandrel-shank passes beneath the inclined flanges 21 and the mandrel is thereby Withdrawn. In the first portion of the downward movement of the mandrelshank, the shank moves with relation to the mandrel-tip, thereby actuating the levers and sheathing the upper portions of the levers. This withdraws the levers from en gagement with the lugs or thread-segments formed on the interior of the bottle mouth. In the final portion of the downward movement of the mandrel-shank, the mandrel-tip is withdrawn, so that the passage '7 which leads to thevmold cavity is open to admit air to the mold.

At the bubble-blowing station, the bubble blow-head I is elevated until its tip engages the conical -recess 22 at the lower end of the mandrel-shank. Air is admitted to perform the bubble-blowing operation, through a pipe 23. The bubble blow-head I is actuated by the piston 24 confined in a cylinder 25. At the bubbleblowing station, the cam-disk E of the mandrel-shank passes beneath the stationary cam H, so that the mandrel will not be caused torise when the bubble-blowing device is forced against the lower end of the/shank.

The rotary table or mold-carrier is interployed in the glass-charging operation if desired; and L represents a shears for cutting off the glass.

The ano-lds are opened and closed by means of plu'ngers 26 operated by the cams U and C. Each plunger 26 is connected, by links 27, with the mold sections.

On the hollow trunnion 1 of each moldsupport is secured a bevel-gear 28 which 'co'acts with the stationary bevel-gear D to.

invert and right the molds. The rack D is supported in any suitable manner (details not shown). The molds may be maintained in their normal upright position by any suitable expedient (not shown). If desired, frictional contact between the tram nion 1 of the mold-support and the sectional bearing-box may be such as to cause the bearing-box to grip the trunnion of the mold-support sufficiently to 'maintain the mold in its upright position during the passage of the mold. from one station to another. Any suitable or usual locking device may be employed for releasably locking the molds in upright position if desired. Such locking device is not illustrated, however.

The operation may be briefly stated as follows:

The mold-table B is given an intermit tent movement of rotation in the usual manner, the rotation being efi'ected throu h the medium of the large gear B W en a mold reaches the glass-charging station, the device 15 operates to elevate the mandrel from the position shown in Fig. 6 to the po- &

As the mold leaves the glass-charging station, the cam-disk E of the mandrel moves out of the channel or T-slot 20 of the man'- drel-elevating device. During the passage of the mold to the bubble-blowing station, the cam-disk E rides beneath the inclined flanges 21 of the device G thereby lowering the mandrel. At the bubble-blowing station, the stationary cam H serves to hold the mandrel against elevation during the bubble-blowing operation. i

The improved machine operates in the same automatic manner as do machines of this type employed for making bottles having plain, or unthreaded interior mouth surfaces; and the improved machine is capable of the usual large output of an automatic machine of this type. Thus, bottles of merchantable character can be produced economically and in large quantities, such bottles being provided in their mouth portions with internal threads.

Fig. 2 illustrates a modified form of mandrel-elevating device. This device is designated F. It comprises a cam-member having aninclined portion 29 and a hori zontal port-ion 29 The device F is mounted on a standard F 2 carried by the base A of the main frame. The device F is so located with relation to the glass-charging station that the cam-disks E of the mandrels will ride over the inclined portion 29 and onto the horizontal portion 29*, therebv elevating'each mandrel, in turn, and hol ing the mandrel elevated, during the glasscharging operation. After the glass-charging operation, the cam-disk E of the mandrel rides off the horizontal portion 29 of the cam F as the mold is carried towards the bubble-blowing station.

If desired, the cam H may be dispensed with and some other suitable pro vision made for holding the mandrel in lowered position during the bubble-blowing operation. This may be effected by means of a suitable number of spring-pressed catches, such as the catch 16; or other suitable means may be employed. The catch 16 is adapted to releasably hold the mandrel-tip in either the elevated or the. depressed position. The catch serves, furthermore, to prevent idle movement or shifting of the mandrels in. their bearings during the inverting and righting of the molds.

In- Fig. 7. 30 designates the lugs which are formed in the interior ofthe' container mouth 30?. As has been stated, these lugs may be of any suitable form adapted to engage -the threads or thread-segments of a stopper. It ispreferred to employ at least two of the lug-forming sheathable levers 9.

While the invention is illustrated in connection with an automatic machine of the type in which invertible molds are employed, it may be used in connection with any automatic or semi-automatic machine of the type in which molds are carried in an annular path, each mold having associated therewith, a mandrel provided with sheathable or collapsible means for forming the lugs on the interior of the containermouth, the mandrels being raised and lowered automatically in the. operation of the machine.

The foregoing detailed description has been given for clearness of understanding only, and no unnecessary limitations should be understood therefrom, it being the intent to claim the invention as fully as possible in view of the prior art.

1 \Vhat I regard as new, and desire to secure by Letters Patent, is:

1. In a machine of the character set forth, the combination of a mold-carrier, a series of molds carried thereby, a non-rotatin mandrel associated with each mold an equipped with a sheathable lug-forming member, and means for raising and lowering the mandrels.

2. In a machine of the character set forth, the combination of a mold-carrier, a series of molds carried thereby, a non-rotating mandrel associated with each mold and provided with a sheathable lug-forming member and equipped with means for projecting and sheathing. said member, and means for raising and lowering the mandrels.

3. In a machine of the character set forth, the combination of a mold-carrier, a series of molds carried thereby, a mandrel associated with each mold, said mandrel having a tip-portion equipped with a sheathable lug-forming member and having a. shank-portion movable with relation to said tip-portion and adapted to project and retract the lug-forming member, local means adapted to engage the shanks of said mandrels and elevate the mandrels, and local means adapted to engage the shanks of said mandrels and lower the mandrels.

4:. In a machine of the character set forth, the combination of a mold-carrier, a series of molds carried thereby, a mandrel-bearing beneath each mold, a mandrel working through each mandrel-bearing, each mandrel having a tip-portion and having a shankportion, with lost-motion connection between the tip-portion and the shankortion, a pair of levers mounted in slots in the tipportion and having their upper portions provided with lug-forming recesses and having their lower portions equipped with cams, the'shank-portion being equipped with cooperating cams, local means for engaging the shank-portions of the mandrels and elevating the mandrels, and local means for engaging the shank-portions of the mandrels and lowering the mandrels.

5. In a machine of the character set forth, the combination of a mold-carrier, a. series of molds carried thereby, a non-rotating mandrel associated with each mold, each mandrel being equipped with a sheathable lug-forming member and having associated means for projecting and sheathing said lug-forming member, a projection carried by the lower portion of the mandrel, local means for elevating the mandrel, and a local cam-device adapted to engage the projec- ;ion at the lower end of each mandrel, in urn, and thereby lower the mandrels.

6. I11 a machine of the character set forth, the combination of a mold-carrier, a series of molds carrier thereby, a non-rotating mandrel associated with each mold and provided with a sheathable lug-forming member and associated means for projecting and sheathing said member, means for elevating the mandrels before they reach the glasscharging station, means for lowering the mandrels before they reach the bubble-blowing station, and means for holding the mandrels in lowered position during the bubble-blowing operation.

7. In a machine of the character set forth, the combination of amold-carrier, a series of molds carried thereby, a mandrel associated with each mold, each mandrel having a tip-portion provided with slots and having a shank-portion, lost-motion connections between the tip-portion and the shank-portion of each mandrel, a spring interposed between the tip-portion and shank-portion of each mandrel, lug-forming levers mounted in the tip-portion of each mandrel, cam connection between the lower end of said levers and the shank of the mandrel, means yieldingly tending to hold the tip-portion of the mandrel against movement, and local means for elevating the mandrels prior to the glass charging operation and lowering them prior to the bubble-blowing operation. 7

8. In a machine of the character set forth, the combinationof a mold-carrier, a series of molds carried thereby, a mandrel associated with each mold, each mandrel having a tip-portion provided with slots and having a shank-portion, lost-motion connections between the tip-portion and the shank-portion of each mandrel, a spring interposed between the tip-portion an shank-portion of each mandrel, lug-forming levers mounted in the tip-portion of each mandrel, cam connection between the lower end of said levers and the shank of the mandrel, means yieldingly tending to hold of molds carried thereby, a non-rotating mandrel associated with each mold and provided with a sheathable lug-forming member and associated means for projecting and sheathing said member, and a pneumatic 7 device at the glass-charging station provided with means for engaging the shank of each glailidrel and effecting elevation of the manforth, the combination of a mold-carrier, a series of molds carried thereby, a non-rotating mandrel associated with each mold and provided with a sheathable lug-forming member and associated means for projecting and sheathing said member, and a cam-device adapted to engage the shank of each mandrel and effect the lowering of the mandrel as the mold is carried, from the glasscharging station to the bubble-blowing sta- 5 tion.

11. In a machine of the character set forth, the combination of a mold-carrier, a series of molds carried thereby, a mandrelbearing associated'with each mold, a mandrel working through each of said bearings, the mandrel having a tip-portion provided with slots and having a shank-portion connected with the tip-portion by lost-motion connections, a spring interposed between the tip-portion and the shank-portion of the mandrel, a spring-pressed plunger engaging the tip-portion of the mandrel, sheathable levers mounted in the tip-portion of the mandrel and provided at their lower ends with cams, coac'ting cams carried by the shank of the mandrel, local means for engaging the shanks of the mandrels and effecting elevation of the mandrels, and local means for engaging the shanks of the mandrels and effecting lowering of ihe mandrels.

12; In a machine of the character set forth, the combination of a rotary moldcarrier, a series of molds mounted thereon, 1 10 a blow-head located above the path of the molds at the glass-charging station, a nonrotating mandrel associated with each mold and provided with sheathable lug-forming members and associated means for project:

glass-charging operation.

13. In a machine of the character set forth, the combination of a rotary moldcarrier, a series'of molds mounted thereon, a blow-head located above the path of the molds at the glass-charging station, a nonrotating mandrel associated with each mold and provided with sheathable lug-forming members and associated means for project- 10. In a machine of the character set 75 station, and means 120 i for lowering the man rels, in turn, after the mandrel associated with each mold and provided with sheathable lug-forming members and associated means for projecting and sheathing said members, a vertically-actuated plunger located beneath the path of the mandrels at the glass-charging station and adapted to elevate the mandrels, in turn, and a cam-device adapted to engage the shanks of the mandrels and lower the mandrels as the molds are carried from the glasscharging station to the bubble-blowing station.

15. In a machine of the character set forth, the combination of a mold-carrier adapted to carry molds in an orbital path, a series of invertible molds mounted on said carrier, means for inverting and righting the molds, a mandrel-bearing in alignment with each mold, a non-rotating mandrel working through each of, said bearings, each,

mandrel comprising a tip-portion equipped with sheathable lug-forming levers and a shank-portion adapted to actuate said levers, a blow-head located above the path of the molds at one station, a bubble-blowing device located below the path of the molds at another station, local means for elevating the mandrels preparatory to the glasscharging operation, and local means for lowering the mandrels preparatory to the bubble-blowing operation.

' WARREN E. GLASPEY.

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