US698817A - Glass-blowing machine. - Google Patents

Description

l1 Il SYSheetS-Sheet l.

Patented Apr. 29, i902.

H .l COLBURN GLASS BLowlN'G MACHINE.

(Application led Apr. 13, 1898.) Y

N'o. 698,8I7.

(No Model.)

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No. 698,8I7. Patented Apr. 29, |902.

l H. J. coLBuN. GLASS BLOWING MACHINE.

(Application filed Apr. 13, 1898.) (No Model.) 3 Sheets-Sheet 2.

No. 698,8l7. Patented Apr. 29, |902..

H. J. COLBURN.

GLASS BLOWING MACHINE.

(Application led Apr. 13, 1898.)

(No Model.)

3 Sheets-#Sheet 3.

UNITED STATES PATENT OFFICE. y

HENRY J. COLBURN, OF TOLEDO, OHIO.

GLASS-BLOWING MACHINE.

SBECIFICATION forming part of Letters Patent No. 698,817, dated April 29, 1902.

Application tiled April 13, 189 8. Serial No. 677,413. (No model.)

To @ZZ whom it may concern:

Be it known that I, HENRY J. CoLBURN, a citizen of the United States,residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Glass-Blowing Machines, of which the following is a specification,reference being had therein to the accompanying drawings.

The invention consists in the construction of a glass-blowing machine and in the construction, arrangement, and combination of the various parts, all as more fully hereinafter described, and specifically pointed out in the claims.

In the drawings, Figure 1 is a vertical central section, partly in elevation, through the machine from front to back. Fig. 2 is a similar section at right angles to the section-line of Fig. 1. Fig. 3 is a horizontal section on line E E, Fig. 1. Fig. 4 is a side elevation of the tank, partly in section, showing the cam for actuating the molds. Fig. 5 is a horizontal section at the top of the machine, showing the coupler-actuating devices. Fig. 6 is a front elevation thereof. Fig. 7 is a front elevation of the cam which actuates the bellows, the., showing connections.

A is the base of the machine, and in this case I have shown it formed as a tank, in which the molds may be wet. At the rear of the machine is a pillar or post A', which forms, with the arm A2, projecting therefrom, a support for the operating parts.

B is a vertical shaft supported in bearings centrally of the base and in bearings in the end of the arm A2, and this shaft carries two series of radial arms B', having at their outer ends supports for the blowpipe O. This shaft also has connected to it the molds D D, the connections and mode of operation of which will be hereinafter described, and it carries at its upper portion a head E, secured to the shaft, at the ends of which are the vertical pipes E', terminating in the movable couplers E2, adapted to engage, as hereinafter described, with the upper end of the blowpipe. These pipes E are connected with a source of air-supply, which in this case is shown as supplied from a pipe F, entering through the axial line of the shaft B and having branches F', which lead to the vertical pipes E to supply air thereto. The pipes E have a swiveled connection with the top of the pipe F', of any suitable construction, permitting the rotation of the pipes E.

To rotate the pipes E', I provide them with the bevel-pinions G and which are adapted to be driven by the bevel gear-wheels G on the shaft G2, which at its inner end is provided with a pinion 1,'meshing with the bevel gearwheel 2, which is connected to an oppositelybeveled gear-wheel 3. This in turn is driven by the bevel gear-Wheel 4 on the shaft 5, this shaft having a suitable driving connection, such as the pulley 6, and being journaled in the rock-arm, lever, or frame 7, pivoted on the pillar A', as plainly shown in Fig. 2, the operation of this arm being hereinafter described. The gear- Wheels 2 and 3 are jour- 'naled loosely on the shaft B above the head E.

The shaft B is adapted to be intermittently rotated, and with it the molds andthe supports for the blowpipe, by the same pinion 4 when that pinion is disengaged from the gear-wheel 3 and moved upward to engage with the gearwheel 8, secured to the shaft B. The lever or frame 7 has connected to its outer end the connecting-rod -9,which is supported in suitable guides on the pillar A and extends to the bottom thereof. The lower end of this rod rests on a rock-arm 10 on the shaft 11, journaled in the base of the machine and adapted to be rocked by means of the foot-lever 12, as plainly shown in Fig. 3, so that by pressing on the foot-lever the connecting-rod 9 is raised and the pinion 4 is moved into engagement with the gear-wheel 3, and to thereby, through the connection described, rotate the pipe E', and when the blowpipe is connected therewith to likewise rotate the blowpipe, it being necessary, as is well understood, to rotate the blowpipe or the mold during the operation to prevent the crack or seam in the mold from being reproduced in the blown article. It is evident that the lowering of the lever 12 will permit the connecting-rod 9 to be moved in the opposite direction, a weight 13 being used for that purpose, and if sufficient motion is given thereto the pinion 4 will engage with the gear-wheel 8, and thereby rotate the shaft B and carry with it its connecting parts.

The coupling E2 on the lower end of the pipe E is raised and lowered in any suitable inanner, the mechanism which I have shown be- IOO ing as follows: In the rotation of the shaft B it will carry the head E with it and the pipe l and the coupler E2, and as the coupler reaches the point at which the blowing is to be effected a flange or shoulder thereon will strike upon the inclined face or head 14 at the outer end of the lever 15 and ride up the same, thereby lifting the coupler sufciently to enable the blowpipe to be placed beneath it. The coupling is lowered onto the blowpipe by gravity and by withdrawing the support 14 from beneath the coupler, as follows: The lever 15 is supported upon a stationary bracket 16, extending from the bracket A2 of the pillar. The raising of the shaft 9 carries with it the plate 17, and this plate is provided with the camway 18, adapted to operate a clutch 19, which is on a driven shaft 20, being driven by suitable driving mechanism, such as the belt 21, from the shaft 5, as shown in Fig. 2. This clutch being thrown into engagement with the drive-shaft rotates the cam 22, against which bears 4the end of the lever 23, which is a bell-crank lever and is connected by the link 24 to the lever 15. The cam is of such shape and in such position, as shown in Fig. 7, so that as soon as it starts to move it moves the lever 23 sufficiently (through the connections described) to permit the coupler to drop upon the blowpipe.

. This cam also produces and controls the airpressure, as follows: The cam 22 actuates the push-rod 25, which connects to the under side of the bellows 26. These bellows connect directly or indirectly (in this case they are shown connected indirectly by the pipe F) with the blowpipe or the article to be blown, and by compressing the bellows in any degree the pressure in the blowpipe will be correspondingly produced. When the cam has made its complete revolution, its configuration is such as (shown in Fig. 7) to allow the bellows to again open. This motion of the cam also con- ,trois the shifting of the pinion 4: through the following mechanism: Vhen the rod 9 is raised, the spring-actuated latch 30 is automatically moved beneath the weight 13 and holds the rod up until in the revolution of the cam 22 the arm 3l, carried thereby, strikes the latch 30 and moves it out from beneath the weightY 18, thereby lowering the rod 9 and through the camway 1S disconnects the clutch 19.

Where the air-pressure for blowing the article is obtained by a fan or pump giving a substantially uniform pressure in a main which leads to the blowpipe, it is customary to use a valve to control or vary the pressure for blowing. shown (the bellows and the pipes F F E', coupler E2, and blowpipe C) there is a fixed quantity of air inthe chamber of the bellows and the conduit leading to the article, and

the closing of the bellows compresses this air,

the degree of compression varying with the amount of the bellows movement. With a With the device I have here device such as this, which compresses the fixed volume of air, the controlling-valve may be omitted, as the variation in pressure is obtained by the amount of compression of the air in the compressingl device (such as the bellows) and the conduit leading to the article to be blown. W'hile I have shown a specie device for doing this, I do not understand that my invention is limited to such specific mechanism in its broader scope.

I have shown a construction of bellows such as that after the maximum pressure has been reached no greater pressure can be produced in the article to be blown, and this I accomplish as follows: The bellows is made of two sections 50 and 51, separated bya diaphragm 52, and the diaphragm is apertured to permit the air to pass freely from one section to the other. The upper section has a weight 53 thereon, which-normally keeps the section 50 collapsed. When the cam operates the rod 25, it compresses the bellows-section 5l until the pressure therein is sutiicient to lift the weight 53, which is the desired maximum pressure, and then further movement ofthe bellows will simply lift the weight and distend the section 50, maintaining the pressure, but not increasing it. This is not an essential feature of my invention; but it may be used, so that it may not require great nicety in the cam 22 after the pressure has been produced. I

The mechanism heretofore described may be applied to different types of mold mechanism, and I will therefore describe in ageneral way its operation as a whole. The operator places the vblowpipe C in its supports and then depresses the lever 12. sion of this lever raises the connecting-rod 9, and it is held in its raised position by the latch 30. The raising of the connecting-rod throws into operation the cam 22, which through the connections described lowers the coupling E2 upon the upper end ofthe blowpipe. I It also lowers the pinion 4 into engagement with the gear-wheel' and through the connections described rotates the blowpipe. The cam also operates the bellows and sup` plies air under pressure to the article to Vbe blown. After the desired blowing period, determined by the size, shape, and speed of the cam ,22, the latch 30 is tripped, the connecting-rod 9 drops, the clutch 19 is disconnected, thereby` stopping the rotation of the cam,

.the pinion Il is shifted from its engagement with thegear-wheel 3 to engagement with the gear-wheel 8, and the Ablowpipe is carried from its blowing-point (where it has remained stationary) to the rear of the machine. As it approaches the rear of the machine the cam $35 acts against the spring-actuated stem 3G, which at its end is provided with the wedgeshaped head 87, which engages the pin 38 on the rod 9 and raises that rod a short distance sufficient to rock the lever or frame 7 enough to hold the pinion 4 outofengagement and be- IOO IIO

ltween the gear-Wheels 3 and 8, and thus stops the machine. The operation is repeated whenever the operator depresses the lever 12.

With this construction I have a machine which is, in effect, an intermittent machine and in-which the machine stops during the blowing period, and the starting of the machine to perform its function is under the control of the operator. It also embodies a construction in which the blowpipe is stationary while the blowing is being effected and then is moved to another point, so that the boy who takes the blowpipe (with the blown article) from the machine may stand at a dierent point from -and entirely out of the way ofthe operator who puts the blowpipe into the machine.

I believe it is essential and desirable in an intermittent machine that the operator shouldl erator who inserts the pipe into the machine;

and these inventions are separate from and independent from the particular mechanism employed-in the molds--that is, whether the molds themselves shall move with the blow-l pipe after the article is blown orlwhether they shall remain stationary at the blowingpoint. v

The mold mechanism which I have shown comprises a sectional mold which is moved coincidently with the blowpipe, and the moldactuating mechanism is as follows:

40 is allever, preferably in two yparts or bifurcated to embrace the shaft B andthe sleeve 4l thereon. The lever is journaled onthis sleeve by suitable pins or trunnions. -At each end a head 42 is pivoted'to the lever. The head is provided with a vertical guideway for the `connecting rod 43, there being one of these guide-rods for each mold, and in the machine shown in the drawings I have shown two guide-rods and two molds, the guide-rods being supported at opposite ends of the crossbar 39, secured to the shaft B. The'moldsl) are two-part sectional molds, and'each secy tion ishinged to thehead 42 by suitable connecting-arms. In the base of the machine is supported, around the axis of the shaft B, a-

camway 44, -upon which the lever 40 bears, the camway being of such shape that at the blowing-point the lever will be rocked intel the position shown in. Fig. l, so that one mold will be lifted up out of the tank and theother at the opposite end will be lowered into the I preferably form lugs or pins 45V ontank.

the under side of the Vlever .to contact with the cam, as shown infFig. 4.A The mold-sections are connected .by the-connecting-rods 46 with the pendent arms 47 on the lever 40. On the rock-shaft 11 is a cam 4S, (or an arm having a cam-shaped head,) which is adapted to strike a shoulder on the pin' 49 when `the shaft 1l is rocked by the operator to raise the pin 49 andV cause its inclined face to strike the inner face of the link or arm 47 and move it outward', and thereby close the mold. The pin 49 is slidingly secured in a bearing on the cam 44. W'hen the shaft B begins to'turn in the manner described hereinbefore, it carries with it the cross-bar 39 and the lever and the molds. 'l The first motion of the mold is entirely a lateral one, the cam being properly shaped therefor, and the upper mold is opened by this motion by means of a cam 54, against which the outer face of the arm or link 47 bears, drawing the lower end of that link inward,-and thereby opening the mold. When the mold is opened,the cam is then shaped to gradually lower the mold'into the tank, where Vit will be wet, suitable Water being provided therefor. Y The lower mold in the meantime will move laterally through the water and bya proper-shapedcam can be raised up andnally moved into the position where it'stops, in which position the f parts areas shown inFig. land which-I call the blowing position of the machine at the'front. The machine will remain at rest until again set in operation by depressing the foot-lever 12. The blowpipe will becarried to the rear of the machine `and may be vremoved therefrom, while a new'blowpipe may beinserted j atthe front of the machine and the operation -Y repeated. l

In this form of machine it will be seen that IOO during the blowing period of -"one mold another mold is lying in the water, being 'cooled and properly wet for the next operation, and

in this Way sufficient tim eis obtained towcol' the molds tothe desired temperature, which in a continuously-moving machine v'as heretofore'employed has been found dicu'lt, and

it has been the practice in such continuously-1l movingmachines to avoid this: difficulty by using only every other mold. v

Vhat I claim as my-invention is- TIO l. In a glass-blowing` machine, a'se'ctional'` mold and amovable support therefor,"a sup'- port fora detachable'blowpipe, meansfor intermittently moving themold and blowpipe support, and means for i blowing-the article 'support where itis held,'stationary, a connec'- tion at-that point for supplying the'blowpipe with airA underpressure for blowingyandy means for moving-the blowpipe away from -the blowingconnection.

3.' Ina glass-blowing machine, a traveling Lfra-'me having a support for the blowpipe, va mold and a source of-air-supply for the'blowpipe, a motor for operating said frame'which is stopped as the yblowpipe-support reaches the blowing-point and mechanism under the control of the operator for starting the travel of the machine after each stoppage.

4:. In a glass-blowing machine, a traveling frame having a mold, a support for the blowpipe and an air-supply connection therefor, a motor for intermittently moving the frame, and stopping it with the mold at the blowingpoint, mechanism under the control of the operator for starting same after each stoppage and means at the stopping-point for closing the mold.

5. In a glass-blowing machine, an intermittently-traveling frame carrying the blowpipe and the mold, means under the control of the operator for closing the mold and effecting the blowing while the frame remains at its stopping-point and for causing the frame to move a predetermined distance and to stop.

6. In a glass-blowing machine, the combination with the molds, of a lever joining the molds, a tank, and means for rotating the lever and rocking it upon its fulcrum, to lower the mold into and raise it out of the tank, and to move it to and from the point at which the blowpipe is inserted.

7. In a glass-blowing machine, a pair of molds, a tank vertical guides upon which the molds move, a lever to the ends of which the molds are connected, and means for rocking the lever and rotating it to move the molds around its fulcrum and raise and lower them in relation to the tank.

8. In a glass-blowing machine, an air chamber or duct connecting with the article to be blown, means for blowing the article by reducing the size of the connecting chamber or duct and means for automatically determining and maintaining the maximum pressure to which the air is compressed.

9. In a glass-blowing machine, the combination of a movable support for the blowlpipe, means for rotating the blowpipe and means for causing the blowpipe-support to travel, of a single actuating device adapted to be connected alternately with the blowpiperotating device and the device for moving the blowpipe-support.

IO. In a glass-blowing machine, the combination of the blowpipe-support, the blowpipeactuating devices for rotating the blowpipe and a motor adapted to be connected with said actuating means after the blowpipe is in its support under the control of the operator.

ll. In a glass-blowing machine, the combination of the upright shaft B carrying the blowpipesupportiugarms,a blowpipe-coupler carried thereon, a motor for rotating the blowpipe-coupler, and means under the control of the operator for connecting the motor with said coupler to rotate the same.

12. In a glass-blowing machine, the combination of the vertical standard B carrying the blowpipe-support, a coupler for the blowpipe connecting it with the source of air-supply likewise carried by said shaft, a gear connection for rotating the coupler, a gear connection for rotating the shaft and a drivegear adapted to be alternately connected with .the blowpipe-actuating device and the drive mechanism for the shaft.

13. In a glass-blowing machine, the combination with the mold the blowpipe, a support for" the blowpipe, the air-supply devices for the blowpipe, means for producing a relative rotation between the article and the mold, and means under the control of the operator for setting into operation the rotating devices and for automatically stopping the same at the end of a predetermined time.

I4. In a glass-blowing machine, the combination of the mold, the blowpipe-support, means for effecting a relative rotative movement between the article to be blown and the mold, a motor and means under the control of the operator for setting it in operation which after the mold is closed will supply air for the blowing and effect the rotation mentioned for a predetermined time.

l5. In a glass-blowing machine, the combination of the sectional mold, a support for the blowpipe at the point where the mold remains stationary, means for supplying air under pressure at said point, a motor to cause the mold to travel intermittently to open the same and a motor, under the control of the operator for effecting the blowing and after the blowing to cause the mold to travel 4awa-y from the blowing-point to open the mold and wet the same.

16. In a glass-blowing machine,the combination of the traveling coupler E2, means for automatically lifting the coupler at the blowing-point, means under the control of the operator for effecting the coupling with the blowpi pe.

17. In a glass-blowing machine, the combination of the vertically-reciprocating coupler for connecting the air-supply pipe to the blowpipe and means for raising and lowering said coupler, consisting of the inclined head 14 upon which the coupler is adapted to be lifted and supported, and means for withdrawing said support beneath the coupler, substantially as described.

In testimony whereof I aiix my signature in presence of two witnesses.

' HENRY J. ooLBURN.

lVitnesses:

HENRY C. TRUEsDALL, BLANCHE I. I-IUToHINs.

IIO

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