US1681181A

US1681181A - Method and apparatus for packing cartridges

Info

Publication number: US1681181A
Application number: US220909A
Authority: US
Inventors: Norman D Fulton
Original assignee: Hercules Powder Co
Current assignee: Hercules Powder Co
Priority date: 1927-09-21
Filing date: 1927-09-21
Publication date: 1928-08-21
Anticipated expiration: 1945-08-21

Description

ug.'2l, 1928.

N. D. FULTON METHOD AND APPARATUS FOR PACKING CARTRIDGES Filed Sept. 21, 1927 4 Sheets-Sheet 1 sy @49km Z142? l Aug. 21, 192s.

' 1,681,181 N. D. FULTON v METHOD AND APPARATUS FOR PACKING CARTRIDGES Filed sept. 2i, 1927 l .4 sneetsdsheet 2 I /Varmw/zg lala/fo?? Auggzl, 192s. 1,681,1sl

N. D. FULTON METHOD AND APPARATUS FOR PAGKINGfl CARTRIDGES Filed sept. 21, 1927 4 sheets-sheet 5 l A i l 68 86 l W 6 6. MMM/70H /Mrmdngz /C /z/of A 13mm HMM,

- fram/sys.

Aug. 21, i928. 1,681,181

N. D. FULTON METHOD AND APPARATUS FOR PACKING CARTRIDGES Filed sept. 21, 192'? 4 sheets-sheet 4 v Patented Aug. 2li, 1928.

4 1mm/#mia DFiIiToN, dii* WILMDSTGTQN, nELAWREfAssIGNoRITo HERCULES'POWDER.

QOMPANY, cs vvlmvrrnerom nntaWAnnfACORPORATION or DELAWARE. f

Y METHOD kamm APPARATUS FoRtPAcKIiIe cAR'r-nIjJESd-g "Applicationledsepte'mbei' 21,1192?.iSeriaLNoaZZOB.

This invention relates toa -machine for packing gelatin dynamite into shells and closing the shells to form cartridgesv More particularly it relates to ja machine Which the''feedingof the dynamite is automatically discontinued When the desired charge has been vfed into 'the she'll, and in Whichzthe dynamite is` cut off adjacent the top Aof the shell, tamped into the shell, andthe .shell subsequently closed by crimpingthe open end. f. i

An obj ct ofl this" invention'is the provisionl of a machine for filling shells With gelatin dynamite which is provided with a Aknife for severing the dynamite adjacent the top of the shell thus rinsuring that an accuratr-Blyy measured charge is introduced into the shell. A further object the provision yof an improved method for vfilling ydynamiter cartridges Which method' is advantageously, carried outby the machine.

In the drayvingsf Fig. l is an elevation of the front .ofthe machine? H r.. 5 i

.Fig 3 is a plan vview ofthe-dynamite cutting knife ,f Fig. 4 is-a sectional view'shovvingthe'operating devices for the and its relavtion to thedynamite feeding mechanism;

Fig. 5 is a'plan'yievvof the tamping rod carrying plate; l j i y` Fig. .6 fs a plan view ,partly in section, ofthe tamping rods with shells priortot e tamping ope/ration; l Fig. 7 is a view similar to'Fig. 6-shovving the tamping operation; and Fig. 8A is a sectional View ofI the valve which controls the feeding of the dynamite.

The machine comprises a suitable 'frame 2- i on :Which'are mounted A'the various operating clutch 1 4 to ashaft'f16' carryinggeai" 18 which meshes a splined shaft A 8 to drive the feed screw:N'v'ithnit,y liovve'\'1'er',y v4preventing Vvertical movement of" shaft 8" v with theI piston. TheA` clutch isfc'on'trolled a lever 22 opratedby' a in 'cylindery pliinger s 34.

24 .in =.amanner. hereinafter described. `The bottom` ofthe hopper is provided With nipples 26 through vvhiich the dynamiteis fed into the shells. y

carryingrods 32 mounted for vertical movesp'der28,carr1es'tables provided with ment in 'the spider'. Vertical movements is moved step step manually blyf'th'e operatoii' As shovrn' spider'` 28.carries"'fo'ur tables 30, When 'one vis' ali'gredvvith plunger 34, -tvyo Mothers" are 'lalig'nedfvvith "plungers 38' and 42." lLever l'48jisengaged byafprojection 46 when the vcorresponding trod x 32 moves over plunger 34. "Itl Will beunderr`stood, therefore, that'aisfy soon`"'as afr'od 32 reaches'this poitioml itfvvill be raised'by `Referenc`e "tdFigfQ will show that, ivhen a'rod 32 is raised, projection 46 Will clear the "cylinders Willfhovvever, maintain the jplu'ngers-in raised position'. When"projec tion 46' is 'again flowered,` it,A will pass beyond lever 48, "Wh'ich is eccetrically'-mounted.

Accordingly valve 52is a ctuatedoiilyj'once i each table'as itm'oves' tollling position.

l `i`le"ading` int abore'in'a valve "60 in'which parte of the machine. A'hep'pen 4 fis pro- `vided with afeed screvvgG mounted onV a" .shaft 8 vvhichis supported 'affpiston in ,cylinder 1 0 thewusvual manner. A` povv'erdriven shaft l2 is coupled by nieansfof a lthe" valve aiil.having a' .small 'hole 64"'fthere- 'the"'e ntrance .58.12

Pli'in'ger 3'4 is' providedf vvjith'r'an adjustable 'Uni .l I...

inders.

projection 70 arranged to engage the protruding end of piston 62. .The rise of plunger 34 is very rapid, so that hole 64 is `carried upwardly past y58 and .66 without any appreciable loss of air from the cyl- 10. Pipe 74 is also connected with valve 52.`

A pipe 76 at the bottom of cylinder 1000mmunicates` constantly with va supplyfof'compressed air. lVhen the upper end of cylinder l isexhausted, the pressure'at the bot'- 'l tom thereof acts below the piston and; maintains feed screw 6 in raised position. Actucarries, since the'pressures above'and below balance eachother. A place through valve 60, the pressure above -4the piston' is removedand the `feed screw 'will rise.

Cylinder 24y is similarly provided with pipes78 and 8 0,. '7 8 communicating with pipe 72 and valve `52', whilep ipef80 coniinunicates, constantly with 'asupply ofl compressed air. The piston is normally held to the right end ofthe cylinder 24,' (as viewed. `in Fig. l), against the pressure of a. spring bythe pressure on its left side, but, upon 1 actuation of valve 52, ritis forced tothe left by the spring since the air'press'ureson both sides of the piston become equal'. Then the piston moves to the left Vthe clutch'is engaged andthe feedfscrew driven.

Aknife 82, carried by `rods 84, ittediwith pistons 86 which operate in4 cylinders V88,

reciprocates directly under the feeding nipples 26. By actuation of, av suitable valve, 1 the operatormay at will admit air to either endof the 4cylinders to actuate the knife when desired. i

Positioned `above plunger 38-faretamping rods 90,'suitably aligned to cooperate with the shells and carried by a plate 92 in'any suitablemanner. Similarly positioned above plunger 42 is acrimping mechanismA 94'of the common type.

Shells Ay are placedin a shuttle B which is'positioned by an operator lon a table 30 located inthe position ofthe one shown at the .extremer left by F ig.v 2. The Vtable is clutch 14 to be engaged' andvfeed screw 6to then movedvto a position over plunger 34.

Aiszitapproaches this'position, valve 52I is actuatedproducing an upward movement of

plungers

34, 38 and142r andv also 'allowing diop, thus'starting the feeding ofthe dynamite C in the hopper. it raises vtable 30, moving the ends of the shells overvnipples 26.l At the same time, it

Duringthe period Yin which plunger.

When eihaustion takesA AsI plunger 4 34 rises,

ton 62 yis also forceddownwardly untilhole 64 is'aligiied with-opeiiings 58fandf66. Since the movement of 62 is.slow, exhaustion takes place from pipe 58, allowing pl'ungers 34,'38'and'42 to drop, disengagingclutch14v and lifting feed-screw 6.* 'Because ofthe rapid 'drop yof shells A, the viscous dynamite is pulled out vinto contracted rods as shown g kat D lin Fig. 3. ation of valve 52 admits air through pipe 7 4 above the piston which then drops due to its own lweight and that of parts which it Knife 82,is .then actuated by the operator to cutfthe rods of dynamite between the shells and the nipples immediately above the shells and as close 'as possible vthereto,"leaving the dynamite in the upper ends `ofthe shells lin the form of truncated cones such as shown lat Ein Fig. 6.

Spider 28 is tl'ienfrotated `another'quarter turn when unfilled shells are brought under the hopper'and tliejfilled shells are-brought under tamping rods 90. Rise of plunger 38 v movesv the Aopen ends of the shells over rods 9 0 and the cones E of dynainite'are compressed into the shells as shown in Fig. 7, a yielding pressure being obtained'since plungg exhaustion ,takes place through valve 60,

' plunger 38 drops carrying they, shells downwardlyof rods 90, f l subsequent vquarter turn of spider 28 moves the tamped"` shells under" crimping j mechanism 94where the shells are crimped in the usualI mannerfupon ythe raising and ',It vwill be noted tliatthis ma( dynamite while leaving the upper end'of'the shell empty so that the walls may becrimped fer38 is moved lby compressed air. lWhen orA folded inwardly to closethe cartridge.

This method consists 'of partially fillingthe shell from afsupply and then pulling theshell to ar'distan'cefrom thev supply so that the viscous charge is drawn vinto a contracted rod which is cut adjacent the open end ofV the shell leaving a truncated cone of material which is1 readilyy tamped downfbelow the openfend ofthe'shell.

.Wvhat I claim as my'invention and desire ftofprotectby Letters Patent is:' filln a machine for filling a shell with y.viscous material, means for feeding achargef of material to "a` shell when the `shell/and feeding means arelocated in filling' relationship, and .cutting means for severing Inaterial extending between the feeding means shell have been relatively moved from filling relationship.

2. In a machine for filling a shell with viscous material, means for feeding a charge of material to the shell when the shell and feeding means are located in filling relationship, means for relatively moving the feeding means and shell from filling relationship. to produce a t-apering rod of material extending from the material in the shell, and, cutting means for severing the rod of material adjacent the shell.

3. In a machine for filling a shell with viscous material, means for feeding a charge of material to the shell when the shell and feeding means are located in filling relationship, means actuated automatically upon the filling of a predetermined charge into the shell to relatively move the shell and feeding means from filling relationship to such relative positions that a tapering rod of the viscous material will extend from the material in the shell, and, cutting means for severing the rod of material.

4. In a machine for filling a shell with viscous material, means for feeding a charge of material to a shell when the shellV and feeding means are located in filling relationship, and, cutting means for severing material extending outwardly from the shell after the feedingmeans and shell have been relatively moved from lling relationship.

5. In a shell filling machine, means for feeding a charge to a shell when the shell and feeding means are located in filling relationship, means actuated automatically `upon the filling of a predetermined charge into the shell to relatively move the shell and feeding means from filling relationship,

and to interrupt the feeding, and, cutting means for severing material extending outwardly from the shell after the feeding means and shell have been relatively moved from fillingrelationship.

6. In a shell filling machine, means for feeding a charge to a shellwhen the shell and feeding means are located in filling relationship, the shell and feeding means being relatively moved during a kportion of the feeding operation, means actuated automatically in the relative movement of the shell and feeding means to relatively. move the shell and feeding means from filling re-` lationship, and, cutting means for severing material extending outwardly from the shell after the feeding means and shell have been relatively moved from filling relationship.

7. In a machine for filling a shell with a charge of viscous material, means for feeding-a charge of material to a shell when thek shell and feeding means are located in filling relationship, cutting means for severing material extending outwardly from the shell after the feeding means and shell have been relatively moved from filling relation'- ship, and means for tamping the charge within the shell. s

8i. In a machine for filling a shell with a charge of viscous material, means for feeding a charge of material to a shell whenthe shell and feeding means are'- located in filling relationship, cutting means for severing material extending outwardly fromthe shell after the feeding means and vshell have been relatively moved from filling relationship, means for tamping the charge within the shell, and means for crimping the mouth of the shell to forma closure therefor.

9. In a machine for filling and closing shells, means for presenting a shell successively; to filling, cutting, tamping, vand crimping means, and means for simultane- -ously positioning shells inoperative relationships to the filling, cutting, tamping, andcrimping means.r

10. A method of filling cous material, which includes feeding material to the shell from a supply through an open end of the shell, drawing the shell and supply relatively apart to produce a contracted rod extending within the shell, severing the rod adjacent the open end of the shell and tamping the material extending beyond the end of the shell into the unfilled portion of the shell adjacent the open vend thereof.

NORMAN n. FULTON.

:sok

,a shell with vis