US1241233A - Can-capping machine. - Google Patents

Description

A. K. MALMQUIST.

CAN CAPPI'NG MACHINE.

APPLICATION FILED MAR.4.1916.

Patented Sept. 25, 1917.

SHEET l.

7 6 SHEETS INVENTOR A llomeyS A. K. MALMQUIST.

CAN C-APPING MACHINE.

APPLICATION FILED MAR. 4, I916.

6 SHEETS-SHEET 2.

I 3 l4 W TNESSES INVENTOR I 1 W 1/4 ms 104 1 2 1 W z 0 attorneys A. K. MALMQUIST. CAN CAPPING MACHINE.

APPLICATION FILED MAR. 4, I916.

1,241,238; Patented Sept. 25, 1917.

6 SHEETSSHEET 3.

WITNESSES I M I v Allorn y-s A; K. MALMQUIST. CAN CAPPING MACHINE.

APPLICATION FILED MAR. 4, 1916.

1,241,233. Patentedseptfl25, 1917;

6 SHEETS-SHEET 4- A. K. MALMQUIST.

CAN CAPPING MACHINE. I

APPLICATION FILED MAR. 4. I9I6.

Patented Sept. 25, 1917.

6 SHEETS-SHEET 5- WITNESSES j V {:2 A22 22 z [Ni/3 N T OR ILMJ M W Azormys A. K. MALMQUIST. CAN CAPPING MACHINE. APPLICATION, FILED MAR. 4, 1916.

1 ,941 ,233 v Patented Sept. 25, 1917.

6 SHEETS-SHEET 6 94 illlllllllllilllill LVENTOR I A I army;

- an earns en rant non.

ADOLPH K. MALMQUIST, OF SOUTH BELLIN'GHAM. WASHINGTON, ASSIGNOB, TO PER- FECT VACUUM CANNING COMPANY, OF SOUTH BELLINGHAM, WASHINGTON.

. can-carriers MACHINE.

Specification of Letters Patent. Patentadl Sept. 25, 1917.

Application filed March 4; 1916. Serial No. 82;].61.

To all whom it may concern:

Be it known that I, ADoLPH K. MALM- UIs'r, a citizen of the United States, and a residentof South Bellingham, in the county of Bellingham and State of Washington,

- have invented certain new and useful Improvements in Gan-Capping Machines; and I do hereby declare the following to be a full, clear, and exact description of the inseaming nism that a vacuous condition may be maintained in the two chambers during both operations and so that the exhausting means for one chamber shall not interfere. with the exhausting means for the other chamber.

A further object is to provide simple and.

' efficientseaming mechanisms, and means apparatus that the which shall operate automatically to oper: ate and control the seamingxmechanisms.

A further object is to provide simple me HIS for preventing the discharge of a cap when a can is not in place to receive it;

A further object is to provide cap releasing means which shall be controlled by the movement of a can body to the can carrier.

A further object is to provide means which shall operate to prevent the operation of theseaming mechanism when no can is in place in the carrier. 1

A further object is to so construct the operating parts may be readily accessible for repairs without disconnecting the parts.

v A further object is to construct the apparatus in such manner as to facilitate and .insure adequate lubrication.

Ajfurther object is to provide simple and efficient can discharging means. 1 A further object is to provide an eflicient guiding means for a can-within the sealing.

chambers. t, v

Vith these and other objectsin view theinvention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

carrier- 'Fi 9 is In the accompanying. drawings; Figure 1 is plan view of a machine embodying my improvements verse sectional view on the line '22 of Fig. 1; Fig. 3 is-a horizontal sectional View on the line 3-3 of Fig. 2; Fig. 4 is a horizontal sectional view on the line of Fig. 2; s Fig. 5 is an enlarged plan view of the revoluble can carrier; Fig. 6 is a sectional View on the line 6-6 of Fig. 5; Figs. 7 and 8 are enlarged vertical and horizontal views through the'pockets or chambers of the can a bottom plan view illustrating the seaming mechanism; Fig. 10 is a vertical transverse section on the line on the line 1111 of Fig. 9; Fig. 12 is a the line 12-12 of Fig. 9; Fig. 13 is a detail view of one of the levers of the seaming mechanism; Fig. 14 is a fragmentary view partly-in section showing parts of the cap feeding and can discharging means; Fig. 15is an enlarged detail view illustrating the cap magazine ancl the manner of dischargingcaps therefrom: Fig. 16 is a detail view of the cap ejector enlarged detail views of the can seat 93 and the guide 88 respectively; are plan and sectional views respectively, showing the cap magazine; Fig.- 21 illustrates the couplmg between the rod sections 158160; Fig. 22 is a detail View showing the cam 169; Fig. 23 is an enlarged plan view (partly in section) of one of the seaming heads; Fig. 24 is a fragmentary sectional view illustrating the manner in which a can is discharged, and Fig. 25 is anJenlarged detail view showing the adjusting means at the upper end of the rod 114:.

p 1 represents a base plate supported on suit-.

end plates- 6 and 7. and thus said casing forms a closed chamber inwhich the major,

portionof the driving gearing is located and immersed in oil containedin said chamber.

Fig. 2 is a vertical trans Fig. ll'is a view in section V Figs. 17 and 18 are Figs. 19 and 20.

'Oil may be supplied to the casing through -a pipe or nipple 8 communicating with the upper portion thereof, and a drain cock 9 may be provided at the bottom of the castom 1 of the casing is provided with an up- .ward enlargement 14 which may form an intermediate bearing for the'driv'ing shaft,

' and .near the central portion of the casing,

v to the shank is somewhat contracted and with both of said plates.

bearings 15-16 are provided for the inner ends of shafts 17-18 disposed at an acute angle,-the outer ends of said shaftsbeing mounted 'in bearings 19-20 formed on the end plate 7 of the gear casing3. A large beveled gear 21 is secured to the main driving shaft 12 and transmitsmotion to gears 22-23 01f the shafts 17-18 andservingto drive said shafts in reverse directions.

An upper frame plate 24 is located a sufficient distance above the uppernplate 4 of the casing to accommodate a revoluble can carrier 25 between said plates, and so that said carrier may have close-fitting contact The upper frame plate 24 is provided with arms 26 to receive the shanks of posts 27 rising from arms 27 a on the gear casing and by means of which said upper frame plate is supported. The shanks of the posts'27 pass freely through holes in the arms 26 and their upper portions are-threaded for the reception of nuts 28, while that portion of each post adjacent threaded for the. reception of an annular nut or sleeve, 29 The nuts or sleeves 29 bear at their upper ends against the under faces of the arms 26, so that by adjusting said nuts or sleeves, the upper frame plate 24 may be adjusted to insure proper close contact with the upper face of the revoluble carrier. The upper frame plate 24 is-provlded ,with an upwardly-projecting tubular enlargement 30 constituting a bearing for a vertical shaft 31, the lower end of which passes. through the upper plate 4 of the gear casing 3 and is supported in a socket in the upper portion of the enlargement 14, within which socket, a thrust bearing 32 for said shaft is located. The upper end of the shaft 31 projects above the tubular enlargement 30 and has abearing in a .boss 33 formed at the free end of a bracket 34 secured to the'upper frame plate 24. Be-

' tween the bracket 34 and the' upper end of the tubular enlargement 30, a large gear wheel 35 is secured to the -shaft 31 (for a purpose hereinafter explained) and to the lower portion of said shaft, ,a bevel gear'36 is secured and receives motion from a bevel gear 37 secured to the main driving shaft a depending 39 mounted loosely on the shaft 31 and ex .Geneva wheel 40 is secured to 12. The upper casing plate 4 is made with guide bearing 38 for a sleeve tendingupwardly through the axial'portion of the revoluble can carrier 25, to which lat-- in its free end. A vertical shaft 44 is. I

{mounted inbearings 45-46 in the gear casing and carries a gear wheel 47 and a cam block 48,-the latter-to turn freely in the curved recesses 43 of the disk 40. The gear wheel'47 carries a roller pin 49 to enter the slots 41 of the disk 40, and thus cause said disk'and the can carrier'with which it is connected through the tubular shaft 39, tow

be turned step-by-step during the rotation of the gear w eel '47, as will be readily understood. The gear wheel 47 is continu ously rotated by'a gear 50 whichmay be formed integral tical shaft 31.

Two seaming heads 51-52 are secured, side by side, upon the top frame plate" 24, and the latter is recessed to increase the depth of the chamber 5 3 .within each seaming head and also to decrease the thickness with the gear 36 on the verof those portions of the frame plate 24 which form the bottoms of the seaming head cham- 25 is made bers. The rotary can carrier with an annular series of pockets 54 (six such pockets being shown in the drawing) open at the periphery of the carrier and when two of these pockets become disposed under the two seaming heads, they become portions of sealing chambers communicating 24 with the chambers 53 within the seaming heads (which also'form parts of the sealing chamthrough openings 5.; in plate bers) and when two'pockets of the can carrier thus form parts of sealingchambers, their normally open outer or can-entering ends will be closed air-tight means of a curved cover plate 56 frame plates 4 and 24. -This cover plate is secured to the plates 424 by means of screws passing through elongated slots 57 in lugs on said cover plate, so that the latter may be adjusted to closely engage the peripheral portion of the can carrier. Such adjustment may be effected and the cover disposed between the plate secured in position, by means of ad-' justing screw 58 passing through arms 59 secured to one of the-posts 27, and engaging in sockets in said cover plate.

The sealing chamber formed as aboye de- 80 which latter is made with a, curved recess 43 I sprocket conveyer c sprocket wheel 66 and over another sprocketof acap to a' can, by

.posts in proximity the guiding chute.

scribed will be exhausted during the sealing means which will be hereinafter fully explained.

At a point removed a distance from the center of the seaming head 51 equal to the distance between the centers of two adjacent pockets in the can carrier, the upper frame plate is formed with flanges 60 on which the base 61 of a cap magazine 62 is secured. The caps 62 are normally supported in the magazine by means of a blade 63 mounted to slide in a dovetail groove in the bottom of the magazine base 61.

A table 6% is supported by two of the to the cap magazine am over this table, a can chute 65 passes for guiding cans to the pockets of the can carrier.

A sprocket wheel 66 is secured to a vertical shaft 67 which passes through a bearing sleeve 68 depending from the table 6st. r

hain 69'passes over the at thereceiving end of v The conveyer chain is provided with arms 70 which project over the guiding chute for moving the cans forwardly, and'these arms are so spaced apart that, during the travel of the chain, a can will be fedto the-can carrier 25 upon the arrival of one of the pockets thereof under wheel (not shown) 7 the cap magazine, the gearing which drives sprocket wheels 66,

= [by the cap discharging said can carrier 25 and conveyer chain being properly timed to accomplish this result. To provide drivingmeans for the eonveyer chain 69, a sprocketwheel 71 is secured to the lower end of the vertical shaft 67 and receives motion, by means of as'procket chain 72 from a sprocket wheel 73,all of said 71 and '73 being of the same size. The sprocket wheel 7 3 is secured to oneend of a shaft Ti and to the other end of said shaft. a bevel gear 7 5 is secured. This bevel gear receives motion from another bevel gear 7 6 carried by a shaft'TT and secured to the same shaft 77 is a comparatively large sprocket wheel 78 to which motion is imparted by wheel 80 secured to the main driving shaft 12 in proximity to the pulley 13 thereon.

A curved lever 81 is pivotally connectet at one end (as at 82) over the table 64 and projects partly over the discharge end of the guide chute 65, the free end of said lever being which projects forwardly at one side of the cap magazine and is provided near its free endwith a slot Sl to receive a pin 85 carried blade! lVhen acan 15 caused, by an arm 70 on the conveyer chain 69, to approach'a pocket of the rotary can carrier, said can will engage the lever 81 and so move the same as to'causc the blade 63 to be withdrawn from under double seamed to the can body.

' cap is directly a chain 79 from a small sprocket formed with an, L-shaped arm 83 I can carrier so as .tobe disposed under the 86 on the shaft 67 will rier 25, ready to be subsequently applied and I From the above description, it will be readily seen that as the discharge of a can controlled by the movement of a can body, no capcan be released from the magazine unless a can body has entered a pocket of the can carrier 25 to receive it.

\Vithin each pocket or sealing chamber of the rotary carrier 25, a partly circular guide 88 is loosely disposed so that it may be vertically movable,'said guide having an 'open mouth portion 89 (Fig. 18) to receive and assist in directing the can into the pocket or sealing chamber. Normally, the guides. 88 rest upon screwed into the bottoms of the pockets or sealing chambers, each of said disks or plates being made with a hole 91 for a purpose hereinafter explained.

Each guide 88 is made in its inner face with a recess 92 for the accommodation of a can seat.- 93, the latter being provided with a depending boss 94: which enters the hole 91 in the plate 90. The recess 92 is of sufficient depth to permitlimited upward movedisks or plates 90..

stitutes an abutment for the bottom flange 96 of a can 97 resting upon said can seat. The guide 88 is normally pressed, downwardly by means of springs 98 which rest at, their lower tends in sockets in said guide and at their upper ends, said springs engage depending pins 99. The upper portion of each pocket or sealing chamber is somewhat enlarged, as at 100, to accommodate the flange 101 at the upper end of the can 97.

The mechanisms operated from the two shafts 17-18 for manipulating the cans in the sealing chambers and for operating and 1 controlling the respective sealing mechanisms, are the same 1n construction and hence a detail description of one set of such mechanisms will suflice for both.

- Each seaminghead is provided, centrally with an upwardly projecting tubular extension 102', and the latter is provided with an upwardly projecting yoke 103 formed in its top member with a vertical hole 101;- said yoke being also provided at its upper end with a laterally projecting L-shapedarm105. a m

A seaming-roll carrier 106 is located within the chamber of each seaming-head and is provided with a tubular spindle 107 projecting u'pwardly through the tubular extension 102 on the seaming head, and formed with a shoulder 108 to engage the under face of the top wall of said seaming head. A gear 109 is keyed to the upper por-' tion of the tubular spindle 107 and receives motion from the large gear 35011 the vertical shaft 31.

A tubular shaft 110 is located within the tubular spindle 107 of the seaming roll carrier and is provided at its lower end within the seaming head chamber, with a chuck 111. The tubular shaft 110 is threaded at its upper end and passes through the, hole 104 in the yoke 103, to which latter it is secured against rotation by means of a key 112. Nuts 113 are located on the threaded upper portion of the tubular shaft 110' and With- 'vers 119 are end of each lever 119, a

the first seaming head bear, respectively against the upper and lower faces of the top of the yoke 103. By connecting the chuck shaft with the yoke 103 as above described, the chuck will be prevented from turning but it may be readily adjusted vertically.

A rod 114 passes freely through the tubular shaft 110 and is provided atits lower end with a knock-out head 115 disposed under the chuck 111 and adapted to engage and to be pressed downwardly upon a can cover. The knock-out head in the second sealing head will preferably be provided with suitable projections to form a letter, 'figure or other character, whereby said knock-outhead will also constitute a marker for the can caps or covers, to indicate either the contents of the cans or other desired information. The rod of-the knock-out heads may be adjusted for length by means of a collar 116 screwed on the upper end of said rod and held from turning by means of a set screw 117. 7

Each seaming-roll carrier 106 is made two bifurcated arms 118, in which lepivotally supported between their ends, by means of pivot pins 120 and each of such pivotal mountings may be provided with a lubricating device 121. At one seaming roll 122 is mounted and suitable lubricating means 123 may be provided for each seaming roll. Itwill be understood that the seaming rolls in form an interlocking double seam between a cap and can body and that the seaming rolls in the second seaming head will be so formed as to complete the double seam so as to hermetically seal the cap to the cover.

. The'formation of the respective pairs of seaming rolls for accomplishing such'double seaming is well knownin the art and need not be specifically explained herein.

Each seaming-roll'lever 119 is provided near the end thereof opposite to that at which the seaming roll is mounted, with a pivoted, spring trip-arm 124, which is connected, between its ends, with the lever by are so formed as to means of a screw 125, said screw. ser ing to hold the spring arm against an adjusting screw 126 carried by the lever. The bent end of each spring arm 124 is provided with a fin er 127 to engage a cone 128 mounted to slide vertically on a portion of the tubular spindle 107 within the seaming head and near the carrier 106 at the lower end of said spindle. The cone 128 may be provided with a lubricating device 129. The fingers 127 on the spring arms 1241 are maintained in engagement with saidcone by means of springs 130, each of which is attached at one end to one of the levers 119=and at the other end to the carrier 106. Each lever 119 is provided at the end thereof which carriesthe seaming roll, with a limiting screw 131 to engage the chuck, whereby .the pressure of the seaming rolls against the cap and can fia'nges to be seamed. may be regulated.

When a can body and a cap shall-have been fed to the rotary explained, the can'carrier will be turned by the operation of the step-by-step gearing hereinbefore described, so that the pocket or.

sealing chamber of the carrier 25 containing can carrier as previously the can body and cap will become disposed pivoted arm 134 connected with the push rod 132. The other arm of the bell-crank 133 is connected with the upper end of a rod 135,-the latter passing freely through a vertical guide 136 within the gear casing and provided at its lower end with a roller 137 to engage an actuating cam 138" secured to the shaft 17. v

The can is now in position in a sealing chamber of which the seaming head forms a part, and ready to be raised, with its cap to the seaming mechanism. The can and cap I will'be thus presented to the seaming mechanism by means of the devices now to be described. v v

A tubular guide 139 depends within the gear casing, from top plate 4 and communicates with a suitable opening in said plate for the passage of a plunger 140 movable through said tubular guide,the upper end of said'plunger being adapted to engage the boss 94 on the can support 140 is provided at its lower end with a roller 141 to engage a cam 142 on the shaft 17,

whereby said plunger will be moved verti- 93. The plunger.

I cally .to raise the can support and can body of the guide upon I engage the shoulder with its cover to the seaming mechanism. In order that the plunger 140 may accommodate itself to cans which may vary somewhat in height, said plunger is made in tele scoping sections143144, the relative movements of which are limited by a pin-andslot construction illustrated at 145. Aspring 146 is located within the tubular member 144 of the plunger 140 and bears at its lower end upon the upper end of the member 143,-the upper end of said spring bearing against a follower 147 located within said tubular member. The follower is provided with a threaded shank 148 passing through a threaded hole in the upper end of the plunger member 143 and is held at'any de sired adjustment by means of a set screw 149. It is apparent that the tension of the spring may be adjusted by adjusting the follower through the medium of its threaded shank. a

As the plunger 140 is raised by the action of the'cam 142, its upper end will engage the boss 94 on the dim seat 93 and thus raise the can. As the can rises its bottom flange will of the spring-pressed raise the latter, the pressure the lower flange of the can serving to hold the latter from turning during the subsequent seaming operation. During the ascent of the can, its upper end'will engage the can cap and raise the same from its seat, and finally said cap and the upper flanged end of the can will be presented to the chuck 111 ready for the first seaming operation, the cover being held in place by guide 88 and out device 115 hereinafter more particularly described.

The seaming roll carrier 106 will be continuously rotated by the operation of the gears 35 and 109, but prior to the presentation of the can and cap to the seaming chuck, the seaming rolls are not disposed to operatively engage the flanges of the cap and can. When the can and cap' shall have been presented to the chuck as above explained, the mechanism for bringing the seaming rolls into operative relation to therap and can for seaming the former tothe can will be brought into action. These devices will now be explained. Y

The seaming head 51 (and also the seaming head 52) is made with an enlargement 150, in which one end of a lever 151 is pivotally supported, said lever being thus located within theseaming head. The other end of the lever 151 is bifurcated and made to embrace the cone 128, with which the same is pivotally connected. A link 152 passes through the top of the seaming head (suitable packing being provided for said link) and is connected at its upper end with one'arm of a lever 1 53 pivotally mounted carrying rolls into operative relation to the flanges of the cap and can body to'perform the first between its ends at the upper .end of a post 154 rising. from the seaming head. In order that the connection between the lever 153 and the cone-shifting lever 151 shall be ad justable. said link is made intwo parts connected by a turn-buckle 155. :A spring 156 is attached to the outer arm of the lever 153 and to a pin .157 projecting from the seaming head,said spring serving to retain the cone normally in'and return it to its elevated position.

The upper end of a rod section 158'is pivotally attached .to the outer arm of the lever 153, andat its lower end, this rod section is provided with a head 159 (Fig. 21) to enter a socket near the upper end of a rod section 160 whereby said rod sections 158-160 are reinovably coupled together. The lower rod section passes downwardly through a guide 161 depending within the gear casingand is provided at it's 162 to cooperate with a cam 163 on the shaft 17. It is apparent that the cam 163 will operate to reciprocate the rod 158-160 and that when said rod moves upwardly, motion will be imparted, through the lever 153, link lower end; with a roller 152 and lever 151 to the cone 128, thus causing the latter to descend and actuate the rolloperation of double-seaming the cap to the can. It is also apparent imparted to the cone to raise the same and thus permit the seaming rolls to be moved out of-operative relation to th e can and cap, by the action of the springs 130.'

The lower portion of the rod section 158 above the coupling head 159 is flattened and made with'a vertical slot 164 for the reception of a pin 165 whereby the push rod 132 is connected with said rod section 158. Should there be no-ca-n in a pocket or sealing chamber when the same arrives under a seaming head, the push rod 132 will be moved (by"theoperation of the cam the sealing .chamber such va distance as to cause said rod 132 to move the upper ro section from the rod section 160. When the rod sections. 15816O are that during the descent of the rod 158-4160, motion will ,be- I MW 138 and its connections with said push rod) into levers 119 to bring the seaming d 11 5 section 158 laterally and.uncouple said rod thus disconnected, f motion cannot be imparted to the cone-shifthave been completed, the descent of the plunger 140 (by the action of the cam 142) will permit the can and applied cap to de scend from the seaming head: In order to insure such descent of the can and cap, the knock-out head 115 is provided. .The upper end of the rod 114 carrying said head is engaged by one arm of a lever 166. Thls lever is pivotally supported between its ends by the L-shaped arm 105, and to its other arm, the upper end of a rod 167 is pivotally attached. This rod extends downwardly through a suitable guide 168 in the gear casing and at its lower end, said rod may be engaged by a cam 169 carried by the gear 22 (or 23) on shaft 17 (or 18). A collar 170 is secured to the rod 167 and between this collar and the top plate 4," a spring 171 e11 circles said rod 167. This spring will cause operation of the rod 167 and lever 166 to depress the knock-out device to cause descent of the capped can fromthe seaming Y mechanism and normally retain said knockout device in its lower position. Should the capped can stick, its descent will be further 7 insured by the actuation of the rod 167 by can with its the cam 169. The operation of the knockout device by means of the cam 169 at the conclusion of the second seaming operation in the second seaming head 52, will serve to press the knock-out head (in the second i, seaming head) against the can cap with sufficient force to mark the cap, as previ f ously explained. Reverting now to the completion of the seaming operation in the first seaming head and the descent of the capped can into the pocket or sealing chamber in the can carrier 25, it will be readily understood that the operation of the step-by-step driving mechanism previously explained, will cause the carrier 25 to turn one step and bring the partially seamed head to position under the second seamin head, where the same operations as those above described .will be repeated. When the can carrier 25 begins to turn, the cam 138 will operate to move the rod 135'upwardly, and thus cause the bell-crank 133 to be turned in a direction to withdraw the push rod 132. As the push rod is thus moved backwardly, it will cause the upper rod section 158 to be uncoupled from the rod section 160 and hence I ber of the carrier 25,

the seaming-roll controlling cone cannot then move.

Assuming now that a capped can has been subjected to the completion of the double seaming of the cap in the second seaming head 52 and that the finished can has been lowered within the pocket or sealing chama movement of another step of said carrier will bring the completely arging position.

tected by screens or strainers 180 caniwill be moved out of the pocket of the carrier, by the operation of an'ejector-rod 172 (one of such rods being provided for each pocket of the carrier 25), said ejector rod being actuated for this purpose by means of a cam 173 secured upon the top plate 4. The ejector rods are loosely mounted in the rotary carrier 25 and will be. pushed back by cans entering the pocxets'of the carrier during the can feeding operations previously described.

When a capped can is ejected from the carrier 25, it will tip onto an inclined chute. 174 (Figs. 1 and 24) and be guided by said chute to a suitable conveyer 175, by which. it may be delivered at any desired place.

It is desirable that the seaming operations shall be accomplished in vacuous chambers, and hence provision is made for exhausting the air from the sealing chambers when the cans are in position under the seaming head's, said seaming heads as well as the pockets in the carrier 25 constituting, at such time, parts of the. vacuous sealing chambers. The means employed for exhausting said sealing 90 chambers will now be explained.

Curved, elongated ports 176 and 177 are formed in the top casing plate 4, and communicate respectively, with pipes 17 8-17 9, said pipes being connected with a suitable double cylinder exhaust pump (not shown). The elongated ports are parallel with each. other and are of suflicient length to extend from one can seaming position to the other as shown in Fig. 3.

Tnthe drawing, 1 have shown the rotary carrier 25 with six pockets to form sealing chambers when disposed under one or the other of the seaming heads- Alternate pockets are provided with air ducts 180 proso disposed as to communicate with the curved port 176 and the other set of alternate pockets are provided with ducts 181 (similarly protected by screens or strainers) arranged to communicate with the curved port 177. With such arrangement, a pocket of carrler 25 forming a sealing chamber with the first seaming head, 51, will communicate w th the exhausting port 17 6' and the pocket 115 Wlll contlnue to communicate with such exhaustlng duct 176 while this pocket is travellng from the first seaming head 51 to the second seamlng head 52 and while this pocket is under the second seaming head.

play.

adjacent sealing chambers. Inlother words; there will be no conflict between the exhausting of the Chamber containing one can, and the exhausting means for the chamber containing the next can. L

In order that ready access may be had to the seaming mechanism within the seaming heads without necessity for disconnecting the operating shafts or without removing the seaming heads, each of said seaming heads is made with an opening which is normally closed by means of a plate or door 182.

\Vhile I have described the machine, as operating to double-seam caps to the upper ends of cans, it will be understood that the machine may also be used to seam thebottoms to cans. 'It will also be understood that the pivotal connections between the reciprocatmg rods and the pivoted levers are suificiently loose to have proper amount of Numerous slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and'hence I do not WlSh to restrict myself to the precise details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is:-

1 In a can capping machine, the combination w th aseaming head and a. can and cap carrler, of seaming devices within the seammghead, means for rotating said seamlng devices, a controlling device for said seaming devices located within the seaming head, a lever mounted within the seaming head and connected with said controlling device, a lever mounted exteriorly of the seammg head, a longitudinally adjustable connectlon between said levers, a cam,,means for driving the same, and a connection between sa1d exterior lever and said cam.

2,111 a can capping machine, the combination with a can and -cap carrier and a seaming head, of seaming devices within the seaming head, a controlling device for said seaming devices within the seaming head, a lever mounted within the seaming head and connected with said controlling device, a lever mounted exteriorly of the seaming head, a connection between one arm of said exterior lever and the lever in the seaming head, a cam a connection between said cam and the other arm of said exterior lever, and

a spring connected at one end with said ex-' terior lever and attached at its other end to a fixed part.

3. In a 'can capping machine, the combination with a can and cap carrier, seaming devices, controlling means for the seaming de'vices, and operating means for said controlling means, of means disposed to engage a can in the carrier-and operative to unthe other end of the rod is connected, a

couple said operating means when no can is in the carrier in position under the seaming devices.

4. In a capping machine, the combination with a can and cap carrier, and seaming devices, of controlling means for said seaming devices, and actuating means forsaid controlling means, said actuating means and adapted to enter the carrier and render said actuating means inoperative when no can is in the carrier under the seaming devices. i

5. In a can capping machine, the combination with a can and cap carrier, devices, seaming devices, of a {rod comprising two sections removably connected together, connections between one end of said rod and said controlling device, a cam with which push rod connected with one section of said rod and adapted to enter the carrier, and means for moving said rod into the carrier, whereby the sections of said two part rod will be disconnected and said controlling device rendered inoperative if no can is in position in the carrier to receive said push rod.

6. In a can capping machine, the combination with a can and cap carrier, having pockets to receive cans, seaming devices, a controlling device and actuating means for said controlling device, of means for sealing a pocket of said carrier, a push rod passing through said sealing means and adapted to enter a pocket of'said carrier andengage a can therein, a

' a cam, and a connection between said cam and bell-crank.

7. In a can capping machine, the combination with a can and cap carrier, two sets of seaming mechanisms, and controlling devices therefor, separable actuating means for said controlling devices, rods connected with said separable actuating means and adapted to enter the carrier beneath said seaming mechanisms, and means for moving said rods into and out of the carrier, whereby said actuating means will be separated if no can is in the carrier and also when one or the other rod is withdrawn and the carrier is moving a can from one seaming mechanism to the other or from the second seaming mechanism.

8. In a can capping machine, the combination with a,can and cap carrier, seaming mechanism, and a controlling device for said seaming mechanism, of a rod to enter the carrier beneath the seaming mechanism,

separable operating .means' for said controland means connected with for said seaming devices, I

said bell-crank and connected with said rod, whereby when the rod is withdrawn from the carrier said actuating means will be disshafts in the gear casing,

between said shaft and said carrier,

respect1ve seaming mechanisms, gears and connected and when no can is in the carrier to receive said rod, said actuating means will. be disconnected, and whereby engagement of said rod with a canwill maintain theparts of said actuating means in operative relation 'to each other. 1

'9. In a can capping machine,-thecombination with a gear casing adapted to contain lubricant, a superstructure, a can and cap carrier mounted in said superstructure, and two sets of seaming mechanisms also supported by said superstructure, of a main driving shaft in the gear casing, gearing two gear casing under the cargear secured to the main drlvlng shaft and meshing with gears on the radiating shafts, gearing between the seaming mechanisms and the main driving haft, controlling means for the respective seaming'mechanisms, cams on the respective radiating shafts, and connecting devices between said cams and the re spective controlling means.

10. In a can capping machine, the combination with a gear casing and a superstructure, of a can carrier mounted in said superstructure, two seaming mechanisms carried by the superstructureyand controlling means for said seaming mechanisms, of a main driving shaft shaft, gearing between the vertical shaft and the main shaft, gearing betweenthe vertical shaft and the seaming mechanisms, step-by step driving means between the main driving shaft I, and the can carrier, radiating gearing between the radiat ng shafts and main driving shaft,

radiating shafts in the 11. In a can capping machine, the combinationwith' a rotary carrier having'pockets, seaming mechanism, a main driving shaft, mechanism actuated from said driving shaft for operatingsaid carrier and seaming mechanism, of a can conveyer, guiding means for directing a can to a pocket of the carrier, a driving shaft for said conveyer, gearing between said shaft and the main driving shaft, a cap magazine over the car; rier, a sliding cap discharging plate at the bottom of the magazine, a pivoted lever connected with said sliding plate and having a part disposed in the path of the can over said guiding means whereby said sliding plate-will be operated in one directionby the movement the can-therein, and means for subsequently presenting the can and cap to the seaming mechanism. p p 12. In a can capping machine, the combi- "nation with a rotary can and cap carrier having pockets, and a fixed seaming head over the same, said seaming head cooperating with the pockets ofthe carrier succes sively to form sealing chambers, a curved plate for closingsaid' sealing chamber, means for adjusting said plate to insure a close fit between the same and the carrier, seaming mechanism in the seaming head, means for fee ing cans and caps to the pockets of the carrier successively, and means for raising a can and cap in a sealing chamber and presenting the same to the seamirig mechanism.

ocured to the framework, screws passing L through said arms and engaging said plate to retain said plate in fitting contact with the carr1er,fseam1ng mechanlsm 1n the seammg head, and means for ralsmga can and cap in a sealing chambera'nd presenting the I same to the seaming mechanism.

l LIn a can capping machine, the combiin the gear casing, a vertical 5 nation with a' rotary can and cap carrler having pockets, and means for feeding cans and caps to the successive pockets of the carrier, of two seaming heads to cooperate with two pockets of the carrier simultaneously to form sealing chambers, means for closing such sealing chambers, means for eX- the seaming heads, means for separately exhausting the sealing chembers formed by the other pockets of the carrier 'with one .of'said seamingheads, seaming mechanism in each seaming head, means for voperating sald seaming mechanisms, and means for presenting cans and'caps to 531d seamlng mechanism in the sealmgchambers successively. a

' 15. In a can capping machine, the comb1-' nation with a framework, a can and cap carating and controlling said seaming mechanisms, and means for presenting each can and cap thereon to the two seaming vmechanisms in the two vacuous chambers successively.

16. In a can capping machine, the combination with a rotary seaming roll carrier and a chuck, of-levers mounted in said carrier, a seaming roll carried by each lever, an adjustable stop carried by each lever to engage the chuck for limiting the movements of the seaming rolls toward the chuck,

springs connected with said levers to move the seaming rolls in a direction away from the chuck, a cone cooperating with said levers to control the operation of the seaming rolls, and means for actuating said cone. In testimony whereof, I have signed this specification in the presence of two subscribing witnesses. a

ADOLPH K. MALMQUIST: Witnesses 1 D. M. BROSSEAU, C. H, BOYNTON.

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