US1570122A - Can-end drier - Google Patents

Description

Jan. 19, 1926.,

D. L. BYISSET cm END DRIER '7 Sheets-Sheet l Filed July 9, 1924 D. I... BISSET CAN END DRIER Filed July 9, 1924 7 SheetsSheet 2 a 1 EN TOR WK am a; zyim ,4 TTDRNEY Jan 19,1926. 1,570,122 D. L. BISSET CAN END DRIER Filed y 1924 7 Sheets-$heet 5 INVEN TOR 7 Sheets-Sheet 6 F IG- 9- 0o IOE \03 /IIIIIIIIII WiQ D. L. BISSET cm mm DRIER Filed July 9, 1924 Jan. 19 1926.

FIG-IO- Jan. 19 1926.

D. L. 'BISSET .GAN END DRIER Filed July 9, 1924 7 Sheets-Sheet 7 FIG. IE

7 am G A 5 M m y m ad 3 m G 41 8 8 E ma FIG- H- Patented Jan. 19, 1926.

UNITED STATES PATENT OFFICE.

DAVID LOGAN BI ESSE'I, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO A. R. WHIT- TAL CAN COMPANY, LIMITED, OF MONTREAL, QUEBEC, CANADA.

CAN-END DRIER.

Application filed July 9,

To all 1072 am it may concern Be it known that I, DAVID LOGAN BISSET,

a subject of the King of Great Britain, and.

'Driers, of which the following is the specilication.

The invention relates to sanitary can end driers, as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially of the novel features of construction pointed out broadly and specifically in the claimed for novelty following a description containing an explanation in detail of an acceptable form of the invention.

The objects of the. invention are to facilitate the production of cans by drying the gasket solution inside the rim quickly and deliver the same continuously during the operation; to furnish covers and bottoms for the cans with the same despatch that the bodies are made; to maintainthe gaskets in good condition during the process of drying thereby avoidin any unevenness that might effect the joint; and generally to provide efficiency, neatness and reliability in the hermetically sealed joints between the bodies and ends of the cans.

In the drawings, Figure 1 is a plan view of the machine showing one top plate removed and disclosing thereby the can and elevating columns in one section of the machine.

Figure 2 is a vertical sectional view of one section of the machine.

Figure 3 is a rear elevation of the machine showing one cylinder partially broken away to disclose the can ends as they appear during the operation and showing the driving mechanism at right angles to the same as shown in Figure 2.

Figure 4t is a plan view of the driving mechanism. r I

Figure 5 is a perspective detail of the feed mechanism. 2

Figure 6 is an enlarged cross sectional view of one set of columns.

L924. Serial No. 725,027.

Figure 7 is a diagrammatic View of the i 1 showing the discharge mechanism.

Figure 13 is a fragmentary sectional detail of the discharge mechanism.

Like numerals of reference indicate con responding parts in the various figures.

Referring to the drawings, the central bearings 10 and 11 are secured to the base 12, and to either side of these central bearings the bearings 13 and bearings 14 are secured, to said base, at a lower level than the bearings 10, and 11.

The supporting frame extends upwardly from the base 12 and is formed of the sides 15 and 16 and top 17 the latter having the shaft bearings 18 and 19.

The lower shaft bearings 20 and 21 are formed at the ends of the arms 22 rigidly secured to the bearings 1i and in these bearings the shafts 23 and 2 1 are ournalled, said shaft extending upwardly through the bushings 25 of the bearings 18 and 19 and beingoutwardly flanged at the upper ends 26 over corresponding flanges 27 of said bushings, which extend beyond the bearing orifices. The shafts 23 and 2a are enlarged at their upper ends to form the shaft sockets 28.

The countershaft 29 journalled in the bearings 10 and 11 is driven from the main shaft 30 through a chain of gears 31 and this countershaft 29 is operatively connected by the sprocket and chain drives 32 and 33 to the shafts 34 and 35 respectively, said shafts 3 1 and 35 being journalled in the bearings 13 and 14. respectively.

The shafts 34 and 35 carry the bevel gears 36, coacting with the bevel gears 37 on the shafts 23 and 24 and through this connection the said shafts 23 and 24 are rotated.

III

The shafts 38 and 39 are inserted in the sockets 28 and are encircled by the liners 40 in said sockets.

These shafts 38 and 39 extend upwardly through the flanged shaft extension 41 which are inverted and mounted on and secured to the flanges 26 of the shafts 23 and 24, the liners 42 being introduced between said shafts 38 and 39 and said shafts 41. The shaft extensions 41 are keyed to the spiders 43 and more particularly to the body 44 of each spider.

Each spider at the upper end of its body extends outwardly in the legs 45 and from the ends of these legs the rods 46 project upwardly to a spider 47 as more particularly explained hereinafter.

The shafts 38 and 39 extend into, through and beyond each spider body 44 and are shouldered at 48 inside a body 44 and are keyed just above said shoulders to the column centers 49, which extend freely into the spider bodies and project thereabove into the web centers 50 formed at the inner ends of the webs 51 and 52.

The description now for greater clarity will be confined to one section of the machine the other being similar in every respect.

The webs 51 and 52 extend from the web centre 50 to the wall of the column 53, this column having a bottom opening 54 and a top opening 55 and an external thread 56 and having as a central support the shaft 39, the shaft 38 supporting the other column.

The outer column 57 of each section of the machine is formed with the internal thread 58 and has the feed opening 60. The outer column 57 encircles the inner column 53 and the rods 46 travel around in a central path between the two columns and are carried by the spider 43, which in turn is driven by the shaft 24, the latter being connected to the main drive as explained. The distance between the inner column and outer column agrees with the diameter of the can end elevated, as said can end extends therebe-- tween into the threads by means of which it is elevated, of course these can ends travel in piles and a rod 46 engages each pile, consequently the said can ends simply travel up the spirals individually until the discharge opening is reached.

The outer column 57 is mounted on the dished column base 61 and bolted thereto through the flanges 62 and 63 by the bolts 64 and this base 61 is supported by the I-bars (35 and 66 on the top 17 of the main supporting frame as well as by the flanged extension 67 from the shaft bearings 21, which is also secured to the column base 61 by the bolts 68. The bearing 69 is recessed centrally in said column base 61, for the spider body 44.

The outer column 57 is closed at the top by the cover 70, which is formed with the central boss 71 and in which the oil inlet extends and is closed by the nut 73.

The oil tube 72 extends downwardly from the centre 74, of the webs 75 and 76 within the column 53 and oil cup 77 the latter tapering at its lower end 7 8 to the outlet 79 into said tube 72. The oil tube 72 extends through the interior of the column 53 to the hollow in the shaft 38 and from there it reaches the several bearings.

The upper spider 47 is journalled on the web centre 7 3 and is formed with the clownwardly extending lugs 80, which carry a finger 81, which in rotation projects the ends on to the discharge chute 82, and as the finished can end travels it moves over the deflecting guides 83, against a stop 83 which assists the finger 81, in tipping the ends into the chute.

The shelf 84 extends outwardly from the feed opening 00 and to this the base 85 of the feed mechanism is secured.

This base 85 is slotted at 86 and S7 corresponding with slots 88 and 89 in the shelf 84. The stops 90 and 91 are spaced longitudinally and extend upwardly through the slots 88 and 89 and are offset forwardly at 92 and 93 and bevelled on the backs at 94 and 95 respectively. The lugs 96 and 97 extend rearwardly from the lower ends and are pivoted in the base 85 and held to their upper position normally by the springs 98 and 99.

The carriage 100 reciprocates over the shelf 84 on the track 101 and at its rear end is formed with the dog 102 springheld by the spring 103 to return to its starting point behind the stop 91. The dog 104 is pivotally secured at 105 to the front of the carriagc 100 and extends therebeyond to the stop 90 in its normal position and in re ciproeation goes considerably therebeyond to push the can end into the machine. The can end passes through the guides 100 and 107 and reaches the deflecting guides 108.

The pivoted arm 109 forming also a guide for the can end is pivotally secured and the pivot pin 110 extends downwardly having a cam lug 111 at the lower end in constant contact with a rocker arm 112 pivoted in the bracket 113 and having the connecting rod 114 extending from its lower end to a clutch lever 115 forming part of a conventional clutch mechanism so that in the event of a jam occurring the arm 109 will be forced back, turning the pin 110 and cam lug 111 thus moving the rocker arm 112 and ultimately throwing out the clutch thereby stopping the machine.

The mechanism just described as referring to one set of columns is duplicated in the other section of the machine and operated from the shaft 21 for while it is desirable to operate this as a compound machine from the standpoints of economy and production yet a single machine is quite efiicient. v

In the operation of this machine the carriages of the feed mechanisms are usually driven in their reciprocating movements from accompanying liner machines, that is to say, the machines that pour the gasket solution into the can end groove-s, but these carriages may be operated by cranks or eccentrics connected to the same power, as that driving this machine.

The can ends are pushed one by one over the first stop and each one carried over by the rear carriage dog to the next stop and there taken in hand by the front dog of the carriage and moved in front of one of the rods 46 as the lowermost one of the pile carried around in front of the rod. The can end is taken between the internal and external threads and individually lifted with the rise in the threads, of course all the other can ends in the several piles are being similarly treated so that there is a continuous discharge of can ends and naturally a continuous feed. In the event of a damaged end or other reason why it does not enter the threads properly but jams instead, then the guard lever arm forming part of the guide is forced back, so that its pivot pin operates the rocker arm, which in turn throws off the clutch and stops the machine. The columns in this machine are stationary and the can ends travel, but it would be possible to reverse the operation with reasonably goodresults.

The can ends while travelling through the annular chamber, are subject to contact with a very dry atmosphere which quickly absorbs all the free moisture from the gasket solution and to accomplish this the gas burner 116 is situated at a convenient place in the passage of air from the blower, and the hot air generated thereby is forced by the blower 117 through the pipes 118 to and through the openings 119 in the dish-ed bases 61. This air circulates throughout the cylinders and finds egress through the top openings 120 and into the pipes 121 connected to the blower 117 the air entering the machine always passing through the zone heated by the said burner.

The main inlet pipe 121 to the blower 117 has an opening 122 for fresh air near its lower end and the blower 117 this opening 122 being closed and opened at will by the valve 123 preferably of the rotary damper type. There is also an exhaust opening 124 into the branch pipe 125 extending from the air pipe 118 between the blower and cylinder opening.

It will be seen that the air from the'blower being heated in passage to the cylinders, enters at a plurality of places and quietly circulates throughout the can ends and passes out with the accumulated moisture from the gasket solution to be relieved of its moisture and again sent in a dry state into the cylinders for further absorption of the water element of the gum solution forming the gasket in the rims of the can ends.

'WVhat I claim is 1. In a can end drier, aninner cylindrical casing and an outer cylindrical casing forming an annular drying chamber therebetween and having external and internal threads respectively forming a spiral path through said chamber, a vertical shaft suitably driven at the lower end, a frame mounted on the upper end of said shaft and driven thereby and formed of upper and lower spiders connected by rods, extending through said chamber at intervals and adapted to engage the can ends, rigid supports for said outer and said inner casings, and means for circulating hot air in forced draft including said annular chamber.

2. In a can end drier, an innner casing and an outer cylindrical casing forming an annular drying chamber therebetween and having external and internal threads respectively forming a spiral path through said chamber, a rotary member formed of an upper and lower spider having a downwardly extending hub engaging with a vertical shaft suitably driven at the lower end, i

and said upper spider having can end slicing disks, rigid supports for said outer and said inner casings and means for circulating hot air in forced draft including said an nular chamber.

3. In a can end drier, an inner cylindrical casing and an outer cylindrical casing forming an annular drying chamber therebetween and having external and internal threads respectively forming a spiral path through said chamber, a rotary member formed in a frame having upper and lower spiders connected by rods extending through said chamber at intervals and adapted to engage the can ends, the lower portion of said frame projecting into a downwardly extending hub and having a bearing extending inwardly from the outer casing and connected to an upper extension of a vertical shaft suitably driven at the lower end, rigid supports for said outer and said inner casings and means for circulating hot air in forced draft including said annular chamber.

4;. In a can end drier, an inner cylindrical casing and an outer cylindrical casing forming an annular drying chamber therebetween and having external and internal threads forming a spiral path through said chamber, a rotary member having upper and lower spiders connected by rods extending through said chamber at intervals and adapted to engage the can ends, said lower spider having a hub and a shaft extension keyed to said hub, a vertical shaft having an enlarged end secured to said extension shaft and forming ill) a socket therefor, said vertical shaft being suitably driven at the lower end, rigid supports for said outer and said inner casings, and means for circulating hot air in forced draft including said annular chamber.

5. in a can end drier, an inner cylindrical casing and an outer cylindrical casing forming an annular drying chamber therebetween, and having external and internal threads forming a spiral path through said chamber, a vertical shaft suitably driven at the lower end, a frame mounted on the upper end of said shaft and driven thereby and formed of upper and lower spiders connected by rods extending through said chamber at intervals and adapted to engage the can ends, rigid supports for said outer and said inner casings, a feed and discharge opening for said drying chamber, and a feed ing mechanism base having a shelf secured at said feed opening and stops pivoted in said base and extending upwardly through said shelf and spring-held to position, reciprocating carriage having 'fOlWilItl and rear dogs propelling the can ends and ad vancing them successively into the machine, and means for circulating hot air in forced draft including said annular chamber.

6. In a can end drier, an inner cylindrical casing and an outer cylindrical casing forming an annular drying chamber therebetween and having external and internal threads respectively forming a spiral path through said chamber, a vertical shaft suitably driven at the lower end, a frame mounted on the upper end of said shaft and driven thereby and formed of upper and lower spiders connected by rods extending through said chamber at intervals and adapted to engage the can ends, rigid supports for said outer and said inner casings, feed and discharge openings for said drying chamber, a feeding mechanism base having a feed shelf with slots at said feed opening, reciprocating carriages having rear spring-held dOgs advancing the can ends to said shelf and pivoted front dogs having long shanks and spring-held and adapted to push the can ends successively and directly in front frame, and means for circulating hot air in forced draft including said annular chamher.

7. in a can end drier, an inner cylindrical casing and an outer cylindrical casing forming an annular drying chamber therebetween and having external and internal threads respectively forming a spiral path through said chamber, a vertical shaft suitably driven at the lower end, a frame mounted on the upper end of said shaft and driven thereby and formed of upper and lower spiders connected by rods extending through said chamber at intervals and adapted to engage the can ends, rigid supports for said outer and said inner casings, feed and discharge openings for said drying chamber, a discharge receptacle at said discharge opening having a deflecting plate for directing'the can ends into the space made by the rotation of said upper spider and means for circulating hot air in forced draft including said annular chamber.

8. In a can end drier, an inner cylindrical casing and an outer cylindrical casing forming an annular drying chamber therebetween and having external and internal threads respectively forming a spiral path through said chamber, a vertical shaft suitably driven at the lower end, a frame mounted on the upper end of said shaft and driven thereby and formed of upper and lower spiders connected by rods, extending through said chamber at intervals and adapted to engage the can ends, rigid supports for said outer and said inner casings, a blower and pipes leading to the bottom end of said annular chamber and pipes leading from the top end from and to said blower, a burner situated in the outlet pipe from the blower and inlet and exhaust opening in the air passages.

Signed at Montreal, Canada, this 17th day of June 1924.

DAVID LOGAN BISSET.

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