US938529A - Can-cover-coating machine. - Google Patents

Description

G. W. WEBER, P. EBERHART & E. v. SWA'NGREN. CAN COVER COATING MACHINE. APPLICATION rmm 001231 1906.

938,529. Patented N0v.2, 1909.

4 SHEETS-SHEET 1.

G. W. WEBER, F. EBERHART & E. V. SWANGRBN. CAN COVER COATING MACHINE.

- APPLICATION FILED 001'. a1, 1906.

Patented Nov. 2,1909.

G. W. WEBER, P. EBERHART & E. V. SWANGREN. [JAN DOVER 00mm MACHINE.

APPLICATION FILED OUT. 31, 1906.

938,529. Patented Nov. 2, 1909.

4 SHEETSSHEET 3.

i a 1L9] v 'ugmu HIE]: m

G. W. WEBER, P. EBERHART. & E. V. SWANGREN. CAN COVER COATING MACHINE. APPLICATION IFILED 001.31, 1906.

938,529. Patented Nov. 2, 1909. flfif'g j 4 SHEETS-SHEET 4.

UNITED STATES PATENT-OFFICE.

GEORGE w. WEBER AND rELrx EBERHART, or NEW YORK, n. 1, km: Enwm v. SWANGREN, or MAYWOOD, ILLINOIS, Assmnons 'ro AMERICAN can comrm, or NEW YORK, N. Y., A CORPORATION or NEWjfIlRSEY.

1 cnn-oovEnpoon'rme MACHINE.

Specification oi'Letters Patent. w

-Patented y l\ lov. 2, 1909.

Application filed October a1, 1906. Serial no. 3413071 I To all whom it mag concern:

York, and EDWIN V. SWANGREN, a citizen of the United States, residing in Maywood, in the county of Cook and State 'of Illinois, haveinvented a new and useful Improvement in Can-Cover-Coating Machines, of which the following is a specification.

Our invention relates to machines for coat- .ing or lining the seaming flanges of can heads or covers with rubber cement or other packing, so that when the heads or covers are secured on the can by a double seam or other unsoldered seam, the seam or joint will be hermetically tight.

The object of our inventionis to provide an automatic machine of a simple, eficient and durable construction by means of which the packin composition may be rapidly and economica y a plied to the seaming flanges of the can hea s or covers and dried thereon in proper position. i

A further object is to provide a machine that will do this work without subjecting the liquid packing composition to oxidation or.

position to the outer peripheral portion only of the seaming flange, that is to say at the portion of the seaming flange where the packing is required in order to produce the hermetic joint or seam, and in the minimum amount required to produce a tight or hermetic seam.

The machine embodying our invention comprises in cooperative combination, a rotating can cover .holder preferably of less diameter than the cover so that the'seaming flange of the cover will project beyond the periphery of the holder, a feed chute or passage for the can covers, preferably inclined, a movable feeder for the can covers, a reciprocating chuck for clamping the can cover on the rotary holder, a recip rocating ejector for delivering or freeing the coated cover from its rotary holder, the same being preferably provided with a stop shoulder to arrest the forward movevone of the can cover feed chutes. 1 tion lme upon'which Fig. 2 is taken is marked passage, a closed tank or receptacle for the packing composition, preferably rubber cement, a movable agitator or dasher therein for keeping the composition in proper mixed condition, an intermittently operated pump or feed device for the packing composition fordelivering it in measured. quantity to the seaming flange of; the can cover, a discharge nozzle for delivering the packing composition. in a fine stream upon or against the outer portion of the seaming flan e of the rotating cover, a return pipe locate beneath the discharges-nozzle to receive and return to the tank the charge of packing composition in case there is no'can cover on the ro-. tary holder to receive it and to receive and return to the tank any drippings from the seaming flange of the cover if the can cover is in place on the rotary holder, a drying chamber, a movable, preferably intermittently movab1e, can cover carrier in the drier, furnished with a series of cancover holding shelves or pockets, and a chute or device for automatically delivering the coated can covers from the rotary can cover holder to the carrier of the drier. To increase the capacity of the machine, a plurality of can cover carriers are mounted in the drying chamber and a pluralityof rotating can cover/holders, can cover feed chutes and packing composition discharge nozzles are employed.

Our invention oonslsts in the novelconstruction of parts and devices and in the novel combinations of arts and. devices herein shown and descri ed and more particularly specified in the claims.

In the accompanying drawing forming a part of this specification, Figure 1 is a side elevation of a can head or cover coating machine einbodying our invention. Fig.- 2 is an ment of the can cover in the feed chute or elevation partly in vertical section through The sec- 2-2 on Fig. 5. Fig. 3 is a detail cross section on line 3- 3 of Fig. 1. Fig. 4 is a detail cross section on line 44 of Fig. 1. Fi 5 I I is a section on the broken line 5-5 of trally through one -o the rotary can cover ig. 1. Fig. 6 is an enlarged detail section, cen-- holders and showing the dischargenozzle.

forthe packing composition in section. Fig. 7 is a detail sectionpartly in plan. on hne 7-7 of Fig. 1 and Fig. 8 is an enlarged detail section through one of the holders, showing the ejector in its upper position.

In the drawing, similar letters of refer-. ence indicate like partsthroughout all the figures. I p

In the drawing, A- represents the frame of the machine.

B B are the rotary holders for the can heads or covers, any desired number of them being arranged in a transverse row, but .in the drawing'for convenience we have onl shown two. Each of the holders-B is pre erably of less diameter than the can cover X so that the seaming flange :1: thereof will roject beyond the periphery of. the holder. he holder B has its upper orcover receiv- .ing face 6 preferably shaped to fit the countersink shape :22 of the cover X.

G C are the can head or cover feed chutes, the same being preferably arranged in an incline'd position as illustrated in the draw ing. Each of the chutes or, feed passages C preferably consists of side guides C 0 and a bottom plate C furnished with raised ribs or rails C and an upper guide or plate (3 to permit the feed or passage of a can coverat intervals as required. I

Cooperating with each of the rotary can cover holders or chucks B is an upper movable chuck or clamp E, preferably rotatable on its-movable spindle E The feeder D and chuck or,clamp E are preferably connected together and operate in unison.

- Each of the rotary holders B is furnished with acentral recess B to receive the reciplocating ejector F by which the coated cover is freed or discharged from the rotary ho1der. Each of'the reciprocating ejectors F ispreferably furnished with an upwardly projecting sto shoulder F against which the can cover strikes after beingreleased by the feeder D as, it slides down the chute or feed passage '0, and by which the cover is fcaused to backwardly rebound sli htl while the ejector F withdraws its stop s o der F below the face 1 of the rotary holder B, and while the upper chuck or clanip E moves v downto clamp and seat the cover X on therotary holder.

G is the closed tank or receptacle con-' taining the packing composition.X in a liquid or semi-liquid form, this tank or receptacle having a closed cover G: to keep zle J, arranged a and deterioration incident thereto. The tank or receptacle G is furnished with a movable agitator or mixen H, preferably in the form of an up and downmoving dasher to keep the liquid or semi-liquid composition in propercondition for efiicient o eration. The packing composition is force in; measured quantities from the tank G intermittently upon the seaming flange a: of the rotating can cover X throu h a small discharge'noziove and outside of the rotary holder B, by an intermittently operated feed device I, the same being ably a pump witha reciprocating p unger I one pump being preferably employedjfor each of the discharge nozzles J. The packing' composi'tionflows from the. tank or receptacle .G to the pumps I'through the feed pipes g 9 the latter being furnished-with check valves 9 and from the pumps to the discharge nozzles J throligh the feed pipes J which are furnished with check valves" J The check valves 9 permit the liquid to flow from the tank toward the pumps, but not in the reverse direction, and the check valvesJ permit the liquid to flow toward the discharge nozzles J, but not backward therefrom. The discharge nozzle J is arranged directl over the seaming flange m of the cover X on the holder B and so that the liquid or plastic packing composition is discharged or delivered in a fine stream directly against the-outer portion 'w onlyof the seaming flange w of the rotating cover on the holder B. The packing composition is thus applied at this ortion onl of the seaming flange m. The discharge 0 the fine preferstream of packing composition upon the cover flangetakes place preferably during one complete revolution only of the holder B and cover X thereon, this being regulated by the cooperative action of the pump piston and rotary holder B, the stroke of the pump. piston being timed to make one downward stroke during one revolution of the holder B. By increasing or diminishing the discharge orifice of the nozzle J, a greater or lessquantity of packing composition may be applied to each can cover.

K is a return pipe for the packing. compo-.

sition, havinglts mouth K arranged directly below the dischar e nozzle J so that if no cover is on thehol er B to receive the char e will %6 returned to the tank G throughthis serves'to conyey back to the tank any drippingsvor overflow from the cover X. g I

L is a closed drying chamber, arran ed preferably in an upright position so t at the carrier of the drier holds the covers in a horizontal position during the drying ation or the chief part thereof. The ing chamber L is furnished with-an opening of packing composition, the same return, pipe K. The return pipe K also M is a movable can cover carrier in the drier, the same being preferably an endless fie'xible carrier and intermittently moving. The carrier M travels upon upper and lower pulle s or sprocket wheels M M The carrier is furnished with a series of shelves or pockets m, each adapted to receive a single can cover. The cover receiving shelves or pockets at are preferably formed of pieces of sheet metal bent to U shape, and each secured at its back ortion m to one of the links 111. of the flexible carrier M so that the limbs m m of each piece of sheet metal will form two shelves or pockets for receiving and holding covers during the drying operation. The limbs m m are preferably furnished with downturned lips'm* near their outer edges for guiding and holding the covers in place." The U shaped limbs m m are further preferably provided with stop pins in. to keep the can covers from coming in contact with the links of the carrier chain.

4 N is a connecting chute or passagewayfor delivering the coated can covers from the/rotary holder B after being delivered therefrom by the ejector F into the pockets of the carrier of the drier, this connecting chute being preferably curved so that its lower portion deliversthe coated cover in a substantially horizontal position onto the shelf of the carrier M. The connecting chute or passageway N is preferably hinged at u to the frame and supported at its lower end from the bracket n by a spring a surrounding the guide rod 01 which extends through the bracket n so that in case a projecting cover on the carrier M should strike the end of the chute N, the latter may yield and thus prevent injury. The required motion may be imparted to the-several moving parts of the machine by any suitable operating or connecting mechanism from the driving shaft P, that which I prefer to employ being illustrated in the drawing.

The rotary holders 'B are preferably continuously rotated from the driving shaft P through spur gears p thereon, meshing with spur gears b on the shafts b of the rotary holders. The feeder D and upper chuck or clamp E are preferably operated as required from the driving shaft P by a cam 22 thereon through the reciprocating connecting bar d, which is furnished with a roller d engaging the cam p, the feeder D and spindle of the chuck or clamp E being both connected to this reciprocating bar d. The ejector F is preferably also operated. from the cam p throughan armd on the reciprocating bar (1, which engages the stem f of the-"ejector F. The distance nozzle J is preferably movable so that it may move up and down to-facilitate the delivery of' the cover X to the rotary holder B, and it is preferably movable up and .down as required by means of an arm (Z connected to the same reciprocating bar d, operated by the cam p. The agitator or mixer Him the packing composition tank G is preferably operated or moved up and down as required by a cam 72 on the driving shaft P which engages a friction roller '11- on the stem h of the agitator or dasher H. The packing composition feed device or pump 1' is preferably operated as required from the driving shaft P by a cam p thereon which engages a friction roller I- on the slotted link I which is con-- nected by a lever I and link I with the stem I of the pump piston. The carrier M of the drier or its driving pulley M is intermittently operated as required by a crank 79 on the driving shaft P through the connecting link M, pawl lever M and pawl M engaging a ratchet M on the driving shaft M of said pulley or sprocket wheel M The interior of the drying chamber L may be-heated by any suitable means: We, however, prefer to employ for this purpose steam pipes or coils Q. i/ v The operation is as follows: The can heads or covers X to be coated are placed by the operator in the feed chute orpassage C and sliding down by gravity are automatically fed one by one to the rotary holder B, the downward movement of the cover being arrested by the upwardly projecting stop shoulder or lip F of the ejector F which at this time projects above the face of the holder 'B. After striking the stop. shoulder or lip F. the can cover slightly rebounds while the downward movement of the ejector F withdraws the stop shoulder or lip F below the surface of the rotary holder B; and at the same time, the upper chuck or clamp E moves down and clamps and seats the cover on the rotary holder, thus causing it to rotate. The piston I of the pump I then makes a downward stroke and forces a measured quantity of the liquid or plastic .packing composition through the nozzle J onto the seaming flange :1: of the rotating cover X at the outer portion (1: of the seaming flange, thus coating the same with a thin ing downward as it moves in'a downward 1 direction through the drier, the carrier oper-- necting chute N.

holders to the carriers of the cover as ating to reverse or turn the covers over as the carrier chain passesaround the,upper sprocket wheel. '[A pair of stationary stop orcenteringpins T T on the frameyofthe machine arranged outslde of and concentrically with the rotary holder B, by engagement with the periphery of the cover, centhe stop shoulder F of the ejector F. After thecover has been coated, the upward movement of the ejector F lifts the coated cover ,above the upper ends of the guide pins T T,

so that it may slide forward into the con- WVe claim Y v 1; In a machine for coating or lining the seaming flanges of can heads or covers with packingcomposition, the combination with a dryingchamber, of a plurality of movable can cover carriers therein furnished each with a series of pockets or shelves for receiving the coated covers, a plurality of rotary holders, a plurality of can cover feed chutes, a plurality of ejectors, a plurality of upper chucks for clampingthe covers against the rotary holders, a plurality of packing composition discharge nozzles, a plurality of pumps, a tank or' receptacle for the packing composition, a plurality of return pipes below the discharge nozzles, and a plurality of connecting chutes extending from the rotary the drier, substantially as specified.

In a machine for coatin flanges of can covers with packing composition, the combination with a feed chute for the covers, of a movable feeder, a rotary holder, a discharge nozzle for the packing composition, a tank or'receptacle therefor and a pump for forcing the packing composition in measured quantity through the dis- 45 charge nozzle upon the seaming flange of the cover as ,the cover is rotated by said holders withv its seaming flange under said nozzle, substantially as specified.

3. In a machine for coatin' the seaming paeking composi tion, thecombination with a feed chute for the covers, of'a movable feeder, a rotary holder, a discharge nozzle for the packing composition, a'tank or receptacle therefor and a pump for forcing the packing composition m'measured quantity through the discharge nozzle upon the seaming flange of the cover is rotated, 'ad an upper movable chuck for c'lam against the rotary holder, said nozzle being above the seaming flange of the cover as the cover is rotated by said holder, substantially as specified.

4. In a machine for coating the seaming flanges of cancovers with packing composition, thecombination with a feed chutefor the seaming I ing the cover the covers, of a movable feeder, l1o1der,a discharge nozzle for the packing composition, a tank or receptacle therefor, a pump for forcing the packing composltlon in measured quantity through the discharge nozzle upon the seaming flange of the cover as the cover is rotated, and a movable ejector fitting within the rotary holder for discharging the coated cover from the holder, said nozzle being above the seaming flan e of the cover as the cover is rotated substantially as specified.

5. In a machine for coating the seaming flanges of can covers with packin composition, the combination'with a fee chute for the covers, of )a movable feeder, a' rotary holder, a discharge nozzlefor the packing by sai holder,,-

a rotary composition, a tank or receptacle therefor, a V pump for forcing'the packing composltion in measured quantity through the discharge flange of the cover, V

wardly projecting stop or lip for the cover to strike against as it slips down the feed chute, substantially as specified.

6. In a machine for coating the seaming flanges of can covers with tion, the combination with means for rotating the can cover, of a closed tank -or rece tacle for the-packing composition, a dischar e nozzle for directing it upon the seaming flange of the rotating can, and a pump for forcing the packing composition in measured quantity through the discharge nozzle upon the seaming flange of the cover, said nozzle being above the seaming-flan e 'ofthe cover as the cover is rotated by said means for rotating it, substantiallyas specified. I

7. In a machine for coating the seaming flangesof can covers with packing composition, the combination with a rotary holder -for the cover, of a tank for the packing composition, a discharge nozzle, and a pumpfor forcing the packing composition in measured quantity. through the discharge nozzle: upon the seaming flange of the cover as the .cover chamber and meansffor delivering the coated covers from the rotary holder,

packing composionto the carrier of-the-drying chamber, substantially as specified. 9. In a machine for coating the'seaming flanges of can covers with packing compos1- tion, the combination with a rotary holder for the cover, of a tank for the packing composition, a pump, a discharge nozzle, adrying chamber, a carrier for, the coversin the the carrier of the drying chamber, a feed chute, and a feeder for delivering the can covers one by one upon. the. rotary holder, substantially as specified.

10. In a machine for coating the seaming flanges of can covers with packing composition, the combination with a rotary holder for the cover, of a tank for the packing composition, a pump, a discharge nozzle, a drying chamber, a carrier for the covers inthedrying chamber, means for delivering the coated covers from the rotary holder onto the carrier of the drying chamber, a feed chute, a feeder for delivering the can covers one by one upon the rotary holder, and an ejector, substantially as specified.

11. In a machine for coating the seaming flanges of can covers with packing'composition, the combination with a rotary holder for the cover, of a tank for the packing composition, a pump, a discharge nozzle, a dry ing chamber, a carrier for the covers in the drying chamber, means for, delivering. the coated covers from the rotary holder onto the carrier of the dryin chamber, a feed chute, a feeder for deliveringthe can covers one by one upon the rotary holder, and an ejector. said ejector having a stop shoulder or lip for the cans to strike against, substantially as specified.

12. The combination with. an inclined can cover feed chute, of a rotary holder and a reciprocating ejector furnished with an upwardly projecting stop shoulder or lip to arrest the downward movement. of the covers, .substantially as specified.

13., The combination with an inclined can cover feed chute, of a rotary holder and a reciprocating ejector furnished with an upwardly projecting stop shoulder or lip to an rest the downward movement of the covers, ziilng a movable feeder, substantially as speci- 14. The combination with an inclined can cover feed chute, of a rotary holder and a reciprocating ejector furnished with an upwardly projecting stop shoulder or lip to arrest the downward movement of the covers, a movable feeder, and a movable upper chuck to clamp andseat the cover on the rotary holder, substantially as specified.

15. The combination with an inclined can cover feed chute, of a rotary holder and a reciprocating ejector furnished with an upwardly projecting stop shoulder or lip to arrest the downward movement of the covers, a movable feeder, a movable upper chuck to clamp and seat the cover on the rotary holder, and a discharge nozzle arranged above and outside of the rotary holder to direct the packing composition upon the seaming flange of the cover. substantially as specified. I

segue a movable feeder, a movableupper chuck tb clamp and seat the cover on the rotary holder,

a discharge nozzle arranged above and outside of the rotary holder to direct the packing composition upon the seaming flange of the cover, and a pump for forcing the packing composition through the dischargenezzle, substantially as specified. 17. The combination with cover feed chute, of a rotar holder and a reciprocating ejector furnished with an upwardly projecting stop shoulder or lip to arrest the downward movement of the covers, a movable feeder, a movable upper chuck to clamp and seat the cover on the rotary holder, a discharge nozzle arranged above and outside of the rotary holder to direct the packing composition upon the seaming flange of the cover, a pump for forcing the packing an inclined can composition through the discharge nozzle,-

and a drier having a movable carrier to which the coated covers are delivered from the rotary holder, substantially as specified. 18. The combination with a rotary holder, of means for clamping the can cover thereon, a discharge nozzle and a pump for deliveringthe packing composition upon the seaming flange of the rotating can cover, and an upright drying chamber having a carrier furmshed wit pockets or shelves,'and means for automatically delivering the freshly coated covers onto the receiving shelves of said carrier, substantially as specified.

livering the packing composition upon the seaming flange of the rotating can cover, an upright drym chamber having a carrier furnished wit a series of can receiving pockets or shelves and a connecting chute for delivering the coated covers from the rotary holder onto the shelves or pockets pifhe drying carrier, substantially as speci- 20. In a machine for coating the seaming flanges of can covers-with packing composition, the combination with an upright drying chamber, of an endless flexible can cover carrier furnished with a series of can cover receiving pockets or shelves by which the can covers are held in-a horizontal position while moving upward and downward through the drier, a; can coating mechanism and means for automatically delivering the.

freshly coated covers from the can coating mechanism onto the shelves of the carrier, substantially as specified.

21. In a machine for coating the seaming a series of can receiving as f 19. The combination with a rotary holder, of means for clamping the can cover there-- on, a discharge nozzle and a pump for deflanges of can covers with packing composition, the combination with an upright drying chamber, of an endless flexible can cover carrier furnished with a series of can cover receiving pockets/or. shelves by which the can covers are held in' a horizontal position while moving upward and downward through the drier, and means for coating the seaming flanges with packing composi- 13101}, and means for automatically deliver ing the freshly coated covers onto the recelving shelves of said carrier, substantially as specified.

22. In a machine for coating the seaming flanges of can covers'with packing composition, the combination with an upright dr-ying chamber,- of an endless flexible can cover carrier furnished with a series of can cover cover holder of less diameter than the cover,

receiving pockets or shelves by which the can covers are held in a horizontal position while moving upward and downward through the drier, means for coating the seaming flanges with packing compos tion,

means for discharging the coated covers from said coating means, and means for delivering the coated covers to the carrier ofthe drier, substantially as-specified.

23. In a machine for coating the seaming flanges of can covers with packing composition, the combination with means for feeding the'can covers one by one, of a rotary flanges of can covers with packing compo sition, the combination with means for feed-' in'gthe can covers one by one, of means for rotating the can covers, means for applying packing composition to the seaming flanges of the covers, a drying chamber and a carrier in the drying chamber furnished with a plurality of can receiving pockets'or shelves, and means for delivering the coated can covers to the carrier of the drier from said means for rotating them, substantially as specified. I i

25. The combination with a rotary can of a discharge nozzle for the packing composition arranged above the seaming flange of the cover on the rotary holder, a tank for the packing composition and a return pipe for the packing composition having 1ts mouth below the discharge nozzle to receive the charge of packing composition in "case no can'is present on the rotary holder tov recelve it. substantially as specified. 26. The combination with-a rotary can cover-holder of less diameter than the cover,

of a discharge nozzle for the packing composition arranged above the seaming flange f the cover on the rotary/ holder, atom]:

for the packing composition and a return pipe for the packing composition having'its the charge of packing composition m case no can cover isipresent on the rotary holder to receive it, and a pump'for forcinglt he packarge noz- I ing composition through the disc zle, substantially as specified.

27. The combination with a" rotary can cover holder of less diameter than the cover, of a discharge nozzle for; the packing composition arranged above the-seaming flange of the cover on the rotary holder, a tank for the packing composition, a return pipe for the packing composition having 1ts mouth below the discharge nozzle to receive mouth below the discharge nozzle to receive the charge of packing composition in case no can cover is present on the rotary holder to and a feed chute for the covers, substantially as specified.

28. The combination with a rotary can. cover holder of less diameter than the cover,

. ofa discharge nozzle for'the packing composition arranged above the seaming flange of the cover on the rotary holder, a tank .for the packing composition, a return for the packing composition having 1ts mouth below the discharge nozzle to receive the charge of packing composition in case no can cover is present on the rotary holder 'to composition through the discharge nozzle, a

feeder for releasingthe covers one by one, substantially as speclfied.

cover holder of less diameter than the cover, of a discharge nozzle for the packlng composition arranged abovethe seaming flange receive it, a pump for forcing the packing composition through the discharge nozzle pipe feed =chute' forv the covers, and a movable receive it, a pump for forcing the'packing 29. The combmation with a rotary can of the cover on the rotary holder, a tank for the packing composition, a return pipe for the packing composition having its mouth below the discharge nozzle to receive the charge of packing-composition in case no can cover is present on the rotary holder to composition through the discharge nozzle, a feedchute for the covers, a movable feeder receive it, a pump for forcing the packing for releasing the covers one by one, and an ejector for the covers seated in a recess of. the rotary holder, substantially as specified.

30. The combination with a rotary can cover holder of less diameter than the cover,

of a discharge nozzle for the packing com position arranged above the seaming flange receive it, a pump for forcing the packing composition through the discharge nozzle, a feed chute for the covers, a movable feeder for releasing the covers one by one, anejector for the covers seated in a recess of the rotary holder, and having an upwardly projecting nitop shoulder or lip, substantiallyas speci- 31. The combination with a rotary can cover holder of less diameter than the cover, of a discharge nozzle. for the packing composition arranged above the seaming flange of the cover on the rotary holder, a tank for the packing composition, a return pipe for the packing composition having its mouth below the discharge nozzle to receive the charge of packing composition in case no can cover is present on the rotary holder to receive it, a pump for forcing the packing composition through the discharge nozzle, a feed chute for the covers, a movable feeder for releasing'the covers one by one, an ejector for the covers seated in a recess of the rotary holder, and having an upwardly projecting stop shoulder or lip,'and an upper chuckfor clampin the cover on the rotary holder, substantially as specified.

2-52. The combination With a rotary can cover holder. of less diameter than the cover, of a discharge nozzle for the packing composition arranged-above the seaming flange 'ot' the cover on the rotary holder, a tank for the packing composition, a return pipe for the packing composition having its mouth helow the discharge nozzle to receive the charge of packing composition-in case no can cover is present on the rotary holder to receive it, a pump for forcing the packing composition through the discharge nozzle, a feed chute for the covers, a movable feeder for releasing the covers one by one, an ejector for the covers seated in a recess of the rotary holder, and having an upwardly projecting stop shoulder or lip, an upper chuck. for clamping the cover on the rotary holder, and a drier having a carrier furnished with a series of can receiving pockets or shelves, and means for automatically delivering the freshly coated covers onto the. receiving shelves of'said carrier substantially as specified.

33. The combination with a rotary can cover holder of less diameter than the cover, of a discharge nozzle for the packing composition arranged above the seaming flange of the cover on the rotary holder, a tank for the packing composition, a return pipe for the packing composition having its mouth below'the discharge nozzle to receive the charge of packing composition in case no can cover is present on the rotary holder to receive it, a pump for forcing the packing composition through the discharge nozzle, a feed chute for the covers, a movable feeder for releasing the covers one by one, an ejector for the covers seated in a recess of the rotary holder, and having an upwardly projecting stop shoulder -or lip, an upper chuck for clamping the cover on the rotary holder, a drier having a carrier furnished with a series of can receiving pockets or shelves, and means for delivering the can covers from the rotary holder to the carrier of the drier, substantially as specified.

3+. The combination with a can cover feed chute, of a otary holder, and a reciprocating'ejector provided with an upwardly projecting lip to arrest the forward movement of the cover as the cover slides down f rom the chute, substantially asspecified.

35. The combination with a can cover feed chute, of a rotary holder, stop or guide pins for centering the cover with the holder, and a reciprocating ejector provided with a lip to arrest the forward movement of the cover, and an upper reciprocating chuck to clamp the cover on the holder, substantially as specified.

36. The combination with a can cover feed chute, of a rotary holder,'stop or guide pins for centering the cover with theholden and a reciprocating ejector provided with a stop shoulder or lip to arrest the forward that the packing composition will not be discharge composition, a tank for the'packing COIITPO'. sition and a pump for forcing the pack ng upon the holder in case there ISIIIO cover thereon to rece ve the packing composition in measured quantity upon the flange of the cover as the cover 18 rotated substantially as specified.

38. The combination with a rotary can cover holder, of a discharge nozzle for packing'composition arranged above the seamless flange of the cover on the rotary holder and beyond the periphery of the. holder so that thepacking composition will not -be discharged upon the holder in case there 1s no cover thereon to receive the packing composition and a pipe beneath the discharge nozzle to receive the packing composition, substantially as specified. I

39. The combination with a rotating can cover holder, of means-for applying packing composition to the seaming flange of the rotating cover on the holder, a drying chamber and a movable can cover carrier in the drying chamber, meansfor ejecting the freshly coated cover from said rotating holder, and means for automatically delivjering the coated covers onto the carrier of the drier substantially as specified;

40. The combination, with arotating'can cover holder, of means for applying pack-.-

ing composition to the seaming flange of the rotating cover on the holder, a drying chamber and a movable can cover'carrier in the drying chamber, and means for aiitoniat-- ically delivering the coat-ed can covers from the rotary holder onto the carrier of the drier, substantially as specified.

41. Thecombinationwith a rotating can cover holder, of means for applying packing composition to the seaming flange of-the' rotating cover on the holder, a drying chamber and a movablecan cover carrier in the drying chamber, means for automatically delivering the coated can covers from the packing composition having a plurality of I rotary: holders for the covers, and a pluralityof devices for applying packing'com position to the seaming flanges of the rotatmg covers, a drying chamber and a plurality of carriers for the covers in the drying chamher, and means for automatically delivering the freshly-coated covers from said rotary holders to said carriers in the drying chamber substantially ass'pecified.

43. A machine for coating can covers with packing composition, having a plurality of rotary holders for the covers, and a plurality of devices for applying packing composition to the seaming flanges of the rotating covers, a drying chamber and a plurality of carriers for the covers in the drying chamber, and means for delivering the coated covers from the rotary holders onto the carriers ofthe drier, a plurality of ejectors for said rotary holders, and a plurality of means for delivering the freshly coated covers onto the carriers of the drier substantially as specified.

44. A machinefor. coating the-seaming flanges of can. covers with acking composition, having a plurality'o rotary holders to the carrier of the drier specified flanges of the covers and :1. dr iiig chamber having a carrier onto wh'ic the coated covers are delivered from the rotary holders,

means for automatically feeding 'the covers to said'i'otary holders, and'means for automatically delivering the freshly coated covers substantially as specified.

45. A machine for coating can covers with packing composition, having adrying chainto receive and hold a plurality of covers,

.means for applying packing composition to the covers, and means for automatically delivering the freshly coated covers to the carrier of the drier substantially as specified. 46-. A machine for coating can covers with ber and. a movable carrier therein adapted 1 packing composition, having a rotary holdeia for the covers, means forautomatically feeding the covers to the rotary holder, means for applying the packing composition to the rotating covers and a drying chamber into which the coated can covers are delivered 'from the rotary holder, means for automatically delivering the freshly coated covers'into said drying chamber substantially as specified. I

47. A machine for coating can covers with packing composition, having a rotary holder for the covers, means for automatically feeding the covers to the, rotary holder, means for applying the packing composition to the rotating covers and a drying chamber into which the coated can coversaredelivered from the rotary-holder, and a carrier for moving the coatedcovers through the drying chamber, and means for automatically delivering the freshly coated covers to the carrier of the drying chamber, substantially as GEORGE W. WEBER. FELIX EBERHART. EDWIN V. SWANGREN. V Vtitnesses to signatures of George W. Weber and Felix Eberhart: I L. A. WELLES,

W. P. PALMER.

Witnesses 'to, signature, of Edwin V.

Swangren:

H. M. MUNDAY, EDMUND AncocK.

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