US1220552A - Machine for spraying paper receptacles. - Google Patents

Description

H. F. PROVANDIE.

MACHINE FOR SPRAYING PAPER RECEPTACLES.

APPLICATION FILED AUG.30, 1913- LQIQQ55QB Patentedl Mar. 27, 1917.

2 $HEETSSHEET I.

H. F. PROVANDIE.

MACHINE FOR SPRAYING PAPER RECEPTACLES.

Patented Mar. 27,1917.

APPLICATION FILED AUG.30.1913.

2 SHEETSSHEET 2 nil/MU it Um HERBERT F. PROVAN-DIE, OF MELROSE, MASSACHUSETTS, ASSIGNOR TO AMERICAN WATER. SUPPLY COMPANY OF NEW CORPORATION 01 MASSACHUSETTS.

ENGLAND, OF BOSTON, MASSACHUSETTS, A

\ MACHINE FOR SPRAYING PAPER RECEPTACLES.

Specification of Letters Patent.

Patented Mar. 27, 1917..

Application filed August 30, 1913. Serial No. 787,431.

To all whom it may concern: I

Be it known that I, HERBERT F. PROVAN- DIE, a citizen of the United States, residing at Melrose, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Machines for Spraying Paper Receptacles, of which the following is a specification.

This invention relates to a machine for spraying liquid parafiin-wax or equivalent material on the exterior or interior surface, or both, of paper receptacles, thereby to coat them with a thin layer or film of paraffinwax. The invention has for its object to provide a plurality of holders or forms which support the paper receptacle, and which are made as skeleton-like structures to admit of the interior of the receptacles being reached by the spray; also to provide for rotating said holders or forms at a high speed to prevent pyramiding of the wax on the surface of the receptacles while said wax congeals; also to provide a heating-compartment with openings at its ends to admit of the forms passing through it from end to end, said compartment containing the spraying-apparatus; and said compartment is made quite long to provide a space at the side of the spraying-apparatus to admit of the forms remaining therein for a short period of time after the receptacles thereon have been sprayed, during which time they are rotated at a high velocity to assist in spreading the liquid paraifin-wax evenly over the surface or surfaces of the receptacle, thus to prevent the wax from running down the sides of the receptacle, and from forming a pyramid on the surface; also to provide means for engaging the receptacles on the forms to hold them thereon while the forms are being rotated; also to provide automatic means to move said holding-means into and out of engagement with the receptacles on the forms, respectively, as the forms bearing them enter and leave the heating-compartment; also to provide a turret bearing a plurality of forms, and means to intermittingly rotate said turret, so that during the pauses receptacles may be placed on some of the forms, and other receptacles reposing on the forms may be sprayed and other receptacles may be removed from the forms; also to arrange the forms in groups or pairs for the convenience of the operators who wish to work with both hands, thus enabling them to work with great rapidity yet without discomfort.

Figure 1 is a plan view of a sprayingmachine for this invention.

Fig. 2 is a vertical section of the machine shown in Fig. 1, taken on the dotted line paper receptacles embodying Fig. 3 is a sectional view illustrating the heating compartment in rear elevation, the forms entering one end and leaving the other end of said compartment.

Fig. 4 is a horizontal section of the heating compartment taken on the dotted line M, Fig. 3.

Fig. 5 is an enlarged side elevation of one of the forms and means for rotating it, and the holding-means for a receptacle which is placed on the form.

Fig. 6 is a plan view of the form and associated parts represented in Fig. 5.

Figs. 7 and 8 are details to be referred to.

10 represents a turret of circular form which is secured to asleeve 12, having its bearing in the frame of the machine, and said turret is designed to be rotated intermittingly, and, as here shown, a crown gear- Wheel 13 is secured to the sleeve 12, which engages a pinion 14:, secured to a shaft bearing a gear-wheel 15, which is engaged by a mutilated gear-wheel 16 secured to the mainshaft 17, which is driven by any suitable means, as for instance, said shaft 17 may have secured to it a Worm-wheel 18, which is engaged by a worm 19, on the shaft of an electric-motor. The mutilated gear-wheel16 is so constructed that during each rotation of the main-shaft 17 the gear-wheel 15 will be driven one complete rotation, and through the gear-wheel 14 the crown-gear-wheel will be driven one-twelfth of a rotation, and the turret will be correspondingly rotated. Other driving-means may be employed in lieuof that here shown, and the turret may be given any desired number of pauses during each rotation.

The turret bears a plurality of forms 20, here shown as twenty-four in number, said forms being arranged in groups of two each for the convenience of the operators.

The forms are made as skeleton-like struc-- tures to admit of the spray reaching the interior of the paper receptacles which are placed thereon, and they are of any suitable shape corresponding to the shape of the receptacles which are designed to be placed thereon, but here shown as frusto-conical merely for illustration. The forms are secured to the upper ends of vertical shafts 21, arranged in upright hearings on the turrets, and the lower ends in, said shafts extend into gear-casings 22, and have secured to them bevel-gears 23, which engage bevelgears 24, secured to horizontal shafts 25, disposed radially on the turret and rotatable in suitable bearings thereon; and the inner ends of said horizontal shafts have toothed-pinions 26, secured to them and the 1 lower end a bevel gear-wheel 29, which'engages a bevelgear-wheel 30, secured to a shaft 31, to which shaft another bevel gearwheel is secured, which engages the bevel gear-wheel 32, secured to a horizontal shaft 33, bearing the toothed-pinion 34, which engages a toothed gear-wheel 35, secured to the main-shaft 17. By means of the gearing thus described the crown-gear-wheel 27 is rotated continuously and consequently all of the shafts 25 and all of the forms are rotated continuously and at a high speed.

extremity a vertically disposed center-pin,

Other forms of a earin may be employed, however, in lieu 0 that ere shown for continuously rotating the forms.

Each form has associated with it holdingmeans for the paper receptacles which are 4 placed thereon, and, as here shown, a bracket 40 is extended upwardly from the turret adjacent each form which has pivotally connected with it, at its upper end, an arm 41 which extends over the form and bears at. its

42, which is yieldingly supported and arranged for-engagement with the paper-receptacle, coincident with its axis. The arm 41 is movable on its pivot to bring the center-pin into and out of engagement'with the paper receptacle, it being represented at the right, Fig. 2, and also in Fig. 5 as in engagement with the paper receptacle, and at the left of Fig. 2 as out of engagement therewith. A spring 45 is connected at one end with the arm 41, and at the other end with the bracket 40, which spring extends across ,the pivot-pin, and as the arm is moved from one to the other side of said pivot-pin, said spring acts to hold the arm in either position it may be set, and also .assist in moving said arm in either direction pin to engage and disengage the paper-receptacle on the form, and, as here shown, 49 represents one of the inclined-arms, which is stationarily supported on the heating-compartment, or other convenient location, and is arranged at the entrance to the heatingcompartment, see Fig. 3, and when engaged by the pin 48, acts to move the arm on.itspivot to cause its center-pin to engage the receptacle on the form; and 50 represents the other inclined arm which is also stationarily supported on the heating-compartment or elsewhere, and is arranged at the exit of the heating-compartment, and when engaged by the pin 48, acts to move the arm on its p1vot to cause its center-pin to disenage the receptacle on the form, and to move ar enough to entirely expose the top of the form.

The heating-compartment 60, of arcuate form, is supported on the machine-frame and incloses a su'fiicient portion of the turret to include three pairs of forms, yet it may be made of a greater or lesser length, and it has an opening at the insideto receive the edge of the turret and is open at each end to permit the forms on-the turret to enter at one end and pass through it and leave at the other end. Said compartment is designed particularly to contain the spraying-apparatus by which liquid paraffin-wax is deposited on the exterior or interior surfaces or both of the paper-receptacle, as may be re uired.

he spraying-apparatus itself forms no art of this invention, but for the sake of illustration, is represented inFig. 2, as comprising a set of spraying-nozzles 65, 66', 67 rising from a receptacle which is disposed at the bottom of the heating-compartment,

and is submerged in liquid paraffin-wax which is contained in said compartment, and

vided for the spraying-apparatus whereby its operation is controlled.

As represented in Fig. 8, 7 5 is the controlling-valve for the spraying-apparatus," and an arm 76 secured to its stem which i" connected by a link 77, to an arm 78, whic engages a cam 79, secured to the shaft 17, and upon each rotation of the shaft 17 the valive is opened and closed. Two spraying-devices are provided, arranged adjacent the path of movement of the forms and adapted for cooperation with each pairof forms, while said forms are at rest.

While the paper-receptacles are being sprayed they are rotated rapidly by the forms bearing them, so that the spray is directed to all parts of the surface thereof. The heating-compartment is made quite I operator sitting at one side of the machine.

places two unsprayed receptacles on two of the forms; then the turret moves repeatedly a part of a cycle, and the operator continues to repeat his operation and said first two receptacles are moved into the heating-compartment and are heated preparatory to being sprayed; then they are moved into osition in front of the sna in -a )aratus- P a:

and are sprayed; then they are moved along but still remain in the heating-compartment and are rotated at a high speed; then they are moved out of the heating-compartl'nent and are brought into position in front of an operator who removes them from the forms. On account of the great capacity of the machine it is designed and intended that two operators shall be employed, one to place unsprayed receptacles on the form and another to-remove sprayed receptacles from the form. i

I claim:-

1. In a machine for spraying paper recep tacles, the combination of a turret, a plurality of forms borne by said turret, a stationary heating-compartment arranged at the side of the turret and inclosing a portion thereof with the forms thereon, said heating-compartment admitting of the passage through it of said forms, a sprayingdevice associated with the heating-compartment and arranged in proximity to the path of movement of the forms, means to inter mittingly rotate the turret, and means to continuously rotate the forms, substantially as described.

2. In a machine for spraying paper receptacles, the combination of a rotatable turret, a plurality of forms borne by said turret, a stationary heating-compartment arranged at the side of the turret and inclosing a portion thereof with the forms thereon, said heating-compartmcnt admitting of the passage through it of said forms and being made long enough to inclose at the same time several forms, a spraying-device associated with the heating-compartment and arranged in proximity to the path of movement of the forms, and means to retate the forms while being sprayed and also while contained in said heating-compartment after they have been sprayed, substantially as described.

3. In a machine for spraying paper receptacles, the combination of a rotatable turret, a plurality of forms borne by said turret, a stationary heating-compartment arranged at the side of the turret and inclosing a portion thereof with the forms thereon,

said heating-compartment admitting of the passage through it of said forms and being made long enough to inclose at the same time several forms, a spraying-device associated with the heating-compartment and arranged in proximity to the path of movement of the forms, and means to rotate said forms while contained in said heating-compartment before they are sprayed and also while they are being sprayed, and also after they have been sprayed, substantially as described.

4. In a machine for spraying paper receptacles, the combination of a rotatable turret, a plurality of forms borne by it, a center-pin for engaging the receptacles on the forms, arranged coincident with the axis of the forms, pivoted arms bearing said center-pin, automatic means to move said arms to move the pins toward and from the forms, a stationary heating-compartment arranged at the side of the turret and inclosing a portion thereof with the forms thereon, said heating-compartment admitting of the passage through it of said forms, a spraying-device associated with the heatingcompartment and arranged in proximity to the path of movement of the forms, and means to rotate the forms, substantially as described.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HERBERT F. PROVANDIE.

Witnesses:

JOHN P. WYMAN, AMos L. TAYLOR.

Images