US951293A - Paraffining-machine. - Google Patents

Description

J. o. THOMPSON.

PARAPPINING MAGHINB. APPLICATION FILEDDT. 26, 1908. A y "95 1 ,293. Patented Mar. 8, 1910.

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J. C. THOMPSON.

PARAF ING MACHINE.

APPLIOAT oN :LED 0012.26.1903.

Patelltfd Mal. 8, 1910. 2 slung-SHEET z.

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UNITED sTATEs PATENT .oEEroE JESSE C. THOMPSON, F LOS ANGELES, CALIFORNIA, ASSIGNOR TO THEv AMERICAN SANITARY PAPER CUP COMPANY, 0F LOS ANGELES, CALIFORNIA, A CORPORATION OF ARIZONA TERRITORY.

PARAFFINING-MACHINE.

specification or Letters Patent.

Patented Mar. 8, 1910.

Application filed October 26, 19.08. Serial No. 459,571.

To all whom it 'may concern:

Be it known that I, JESSE a citizen of the United States, residing at LosAngeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Parailining- Machines, of which the following is a speciiication.

This invention relates to a lmachine for i coat-ing the inner surfacesof containers with paraffin, the object being to render the containers sanitary, and impervious to liquids.

As indicated above, the object ofthe 'invention is to provide a machine which will 'paraiiin the containerson the inside alone,

as it is unnecessary to paraiiin the voutside for ordinary purposes. A stacking and counting device is also provided so that the containers may be delivered in counted lots. In the accompanying drawings z-Figure 1 is a central longitudinal section of the complete machine. Fig'. 2 is a vertical cross section taken on line 2-2 of Fig. 1. Fig. 3 is a bottom plan view of one of the container clamps. Fig. 4 is an enlarged plan view of the container tray andthe mechanism mounted thereon. Fig. 5 is an enlarged detail of the back side of the container tray.

Referring to the drawings, 5 designates a supporting frame in the upper end of which a parafHn tank 6 is mounted. This tank is provided with a steam jacket 7 paraffin 8 therein in a liquid condition. Above the tank a horizontal frame 9 is supported and two transverse shafts 10 are journaled thereon. Sprockets 11 are mounted on shafts 10 and a chain 12 passes over the sprockets. On ch-ain 12 is mounted a plural-it of container clamps 13, these clamps eing spaced around the chain at a distance of three links apart. In the drawings only three of the clamps are shown, the positions of the remainder being-indicated by the dot and dash center' lines. These clamps are each composed of two members 14 and 15, the separate members being mounted on adjacent links; as shown, so that they are thrown into a divergent position upon passing over the sprockets.

The present machine is designed for a conical container, one being shown in dotted lines at 16. The containers are dro ped into the machine through a chute l? at C. THOMPSON,

- equal to the len l proper intervals so that they fall into the clamp in the position shown. Member 15 of the clamp is provided withy a bead 18 around its outer' edge and the container top rests below this bead, springs 19 on member .14 pressing the container into engagement with member 15. IVhen the clamp has turned to its lower' position on its passage around the sprocket the container is held tightly from falling out.

The sprocket chain is driven intermittently by a ratchet and pawl mechanism. Mounted in the lower part of the frame is a shaft 20 to which power is supplied in any convenient manner. This shaft is provided wit-h a cam 21 Whichoperates a cam follower 22 mounted on a lever 23 pivoted to the frame at 24:. `A link-25 connects lever 23 with a pawl 26 which engages with a ratchet 27 on shaft 28, the proportions being such that shaft 28 is moved through a distance corresponding to one ratchet tooth upon each movement .of the cam follower and each rotation of shaft 20. A sprocket wheel 29 is mounted on shaft 28 and a chain 30 connects with one of shafts 10, this armovement of chain 12 through a distance h of three links upon each rotation of sha 20. Thus the successive containers held in the clamps are always moved to the same position.

At one end of the paraffin tank a pump cylinder 31 is arranged, a plunger 32 projecting below the tank and being connected to the end of lever 23 as at 33. Upon each movement of the lever the operated, cam 21 moving the plunger downwardly and-sprin 34 moving it upwardly when portion 35 o the cam reaches the cam follower. The plunger is thus given a quick upward movement, and the paralin which has entered the pump cylinder through 391 and is spra ed into the container directly above. It will be seen that thespraying of the paraffin takes place while the lever is opera-ted by the spring, the containers moving while the lever is operated to draw the pump plunger back to take a fresh charge of parai'lin. As the operation of parafnlng the successive containers goes on the containers move from their position over the pump to the position shown at the right of pump plunger is 'ports 36 is forced upwardly through nozzle v rangement providing for the intermittent Fig. l where they are released and stacked up in counted lots suitable for packing.

Each of springs 19 is provided with a transversely projecting end 40 with which a trip-finger 41 is adaptedto engage. The trip gers are mounted on a'stac ing guide 42 secured to the end of the paraffin tank, the fingers being held in the osition shown by springs 43. When the c amp with its container comes to a position directly over the stacking guide the trip fingers engage` with the springs and they are held back so that the container is allowed to fall from the clamp. The containers fall through the stacking guide and .the rst one falls on to tray 44 with its large end down, this being the open end. The following containers pile up on and over the lower one as is shown in dotted lines. down a space each time a container is placed thereon so that the upper part of the top container is always within the stacking guide, thus holding the pile of containers in an upright position.

Tray 44 is mounted on rods 45 so as to slide vertically, being normally pulled upwardly by two weights 46, shown in dotted lines in Fig. 2. The mechanism to move the tray downwardl comprises an eccentric 47 mounted on shag"Jv 20. A connecting rod 48 is adjustably secured at 49 to a lever 50 piv.- oted at 5l, a slot 52 bein provided so that the angular movement o the lever may be varied. Theother end of the lever is connected by pin 53 to avertical feed rod 54, this rod bein reciprocated by the movements of the ever. Mounted on the back of tray 44, as is most clearly shown in Figs. 4 and 5, is a gripper arm 55, being pivoted at 56 to the tray.. This arm binds against one of rods 45 in such a manner that the tray cannot be moved upwardly by weights 46. A second gri per arm 57 bears against feed rod 54 so tlhat the tra-y must move downwardly whenever the feed rod moves downwardly, arm 57 being also'pivoted to the tray at 56. Both of the gripper arms are providedl with extensions 58 and a spring pressed pawl 59 presses a ainst the under faces of these extensions an keeps the grippers in engagement with their respective rods. A shoulder 60 is provided on the pawl under which the extensions are adapted to be held when the tray is moved upwardly to its upper initial position when the previous stack of containers has just been completed. By the mechanism just described the tray is moved downwardly as the containers are placed thereon. After a certain desired number of containers has beeniiled u p the upper part of the top one is sti within the stacking guide and it is necessary to move i the whole stack downwardly to remove it from the machine. This is accomplished by a separate mechanism which is adjustable to Tray 44 is moved operate after any desired number of successive downward movements of the tray. An eccentric 65 is mounted on shaft 20 and is connected by rod 66 to a lever 67 pivoted at 68, the other end of the lever being connected to a push rod 69. The center portion of this push rod is pivoted to a connecting link 70 which is also connected to a controllin lever 71. This controlling lever is pivote at 72 to arm 7 3 which forms an extension of frame 74 slidably and adjustably mounted on vertical rods 45. An extension 75 on the controlling lever projects into the path of tray 44 so that the tray must Acontact with it on its downward movement. When the tray engages extension 75 controlling lever 71 is forced toward the left, a spring 7 6 'normally holdin it in the position shown. Push rod 69 is t us lmoved to'the left and its upper notched end 77 comes into contact with pin 78 on lthe rear end of lever 7 9, also pivoted at 7 2 to extension 73. The lever is normally held in the position shown by spring 80, the

action of the push rod forcing its forward 4end. 81 downwardly and 'into contact with the upper partof tray 44. It will be seen that the movement of the end of lever 79 is comparatively large, the movement of cam 65 being multiplied in both levers 67 and 79. The tray is therefore pushed downthrough a large distance, so much that the upper container is removed entirely from engavement with the stacking guide. Pivotallly mounted at 82 on frame 74 is an ejector arm 83. extending upwardly alongside tray! 44. This arm is provided with an extension 84 on its lower end with which tray 44 is adapted to contact during the last portion of its downward movement, the arm being thereby forced outwardly. On the upper end of the arm is mounted an adjustable finger 85 standing behind the stack of containers and tipping the stack over when the ejector arm is moved. End 81 of lever 7 9 comes down on tray 44 in the position shown in dotted lines in Fig. 5, coming into contact with extensions 58- of the gripper arms and forcing them downwardly so that they are caught and held by pawl 59. When this is done the arms no longer prevent the tray from moving upwardly and it does so as soon as lever 79 moves to its normal position and releases l it. Upon reaching the top of the frame spring finger 86 on pawl 59 engages forcibly with stacking guide42 and the awl is removed from engagement with t e gripper arms, the arms vthen resuming their normal functions. Y

I claim 1.. A container coating machine, comprising a .tank for the coating substance in l1 uid form, a pump arranged within'the tan near one end thereof and adapted to discharge liquid therefrom upwardly, a conveyer belt wheel mounted on each end of the j tank, an endless conveyer belt passing over l the Wheels, a plurality of grippers spaced on the belt, each gripper comprising a pair of members secured to the belt independently i of each other at points removed from each l other longitudinally of the belt, and each of the membersl projecting outwardly from the i belt in its plane of movement, a. chute 4for feeding containers to the grippers while passing over one of the wheels, means to intermittently move the belt over the tank and pump, and means to actuate the pump to force liquid during the periods of rest of the belt. v

2. A container coating machine, comprising a. tank for the coating substance in liquid form, a pump arranged Within the tank i near one end thereof and adapted to discharge liquid therefrom upwardly, a. pair of wheels mounted on the ends of the tank in a common vertical plane with the line of discharge of the pum an endless conveyer link belt mounted on e Wheels, a plurality of grippers spaced on the belt, each grippercomprising a pair of members mounted on adjacent links of the belt and projecting from the 4outer face thereof, a chute for oontainers located over one of the Wheels, means to intermittently move the belt, and means to actuate the pump to force liquid during the periods of rest of the belt.

3. In a container coating macl1ine,.an endless link belt, a. plurality of container grippers spaced on the belt, each gripper comprisingra pair of opposed members adapted to` receive and hold a container betweenY them, the members of each gripper being secured to adjacent links of the belt and projecting from the outer face thereof, a pair of Wheels over which the endless belt moves, means for feeding containers to the grippers while passing over one of the Wheels,

means for holding the containers in the grippersV While passing over said Wheel, means to move the belt intermittently, and means to s ray the containers with a coating liquid uring the period of rest of the belt.

In witness that 1 claim the foregoing I y have hereunto subscribed day of October 1908.

J. C. THOMPSN.

Witnesses:

JAMES T. Bmw, DAVID E. FRANCIsoo.

my name this 19th A

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