US966691A - Jarring-machine. - Google Patents

Description

E. KILLING.

1 J ARRING MACHINE. APPLICATION FILED ria. 23,1910.

Patented Aug. 9, 1910 a sums-sum 1.

E. KILLING.

JARRING MACHINE.

' APPLICATION FILED PEB.23, 1910.

Patented Aug. 9, 1910.

3 SHEETS-SHEET 2.

Ill

witnesses E. KILLING.

J ARRING MACHINE.

APPLICATION FILED IEB.23, 1910.

'3 SHEETS-SHEET 3 Patented Aug. 9, 1910.

I To all whom it concern:

UNITED f EWALD KI LING, or DAVENPORT, IOWA.

. JAItRIING-MACHINE. I

Be itknown that'I, EWALD 'KILLiNQ-Kwho has declared his intention ofbecomingfa citizen of the United States,) residing at Davenport, in the county of Scott and State of Iowa, have invented a new and useful J arring-Machine, of which the following. is a specification. v This. invention has reference to improvements in that: type of molding machines known as jarring machines, designed for the thorough packing of'the sand in the flasks and the object of thepresentinvention is to generally improve machines; of this class, the present invention comprising nieansiwhereby a plurality of lifting elements is provided with a result that there is an elimination of wear in the machine and quicker action is obtained with less expenditure of air, compressed air being the usual power element, although of cou'rse'the invention may. utilize any compressedfluidfor power purposes.

Furthermore the means whereby the same machine may be used with a w de range of different sizes .of-

machine;

The invention he best-understood. and

the advantages of the invention-made apparent, from aconsideration of the following detail description taken in connection with the accompanying drawings forming; a part: of this specification, in which drawi'n'gs,

' Figure structure and actuating .means therefor used in connection with the present invention. Fig. '3 is asection through. .the valve.

structureof Fig. 21in a plane at right angles to the section of the same structure ill-Fig;

"2. F ig.- 4 'is a diametric section of, one 'of thepowercylindersj Fig. 5 isa .view partly in section showing the manner of arrang ng the structure for lar'ge'flasks. I I

middle portion-with; a block-like part .2,

which, as will hereinafter appear, consti- 'tutes an anvil for receiving the-impact of other parts of the machine. The' opposite ends of the base may be rounded upwardas indicated at?) to facilitate transportation'of v I ac aaa or Letters. latent.

Application filed Eehruary 23, 1910; Serial 11m 5 4 S ,432, 1"

I the machine from place sincethe' base is provided with slots 4 extending from,

thus rovidin "invention comprises minimumof change in the 1 an elevation the chine with the parts shown in section. Fig- 2 is a detail sectional elevation of avvalve Patented has, 9; i9 1o.

machine of the present invention. is quite portable; jThe'portions of the base lbeyond the central block 2may becast hollow for lightness. 1 7 On diametrically opposite points of the central block 2, the upper portion of. the

the central block toward; the ends of the 5 base. But oneof these-slots is shown in' Fig. 1 but it will'loe understood' that a. suitable number of; slots is ,provided on'each side of the block 2 for a" purpose which will presently appear. 7 Q '1 7 1 There are provided cylinders 5, two such I cylinders being shown in the drawings'a'nd these cylinders are disposed on the base on I opposite sides ofthe lentral block 2, the cylv-indersbeing 'adjustably secured to the base by means of; posts 6 extending through ears v 7 on the Cylinders-and enterlng the slots 4 t eme ma'y e readl yloosened v van movedal0n'g thebase to any position desired where they" 'le again= secured byfitightening the o s r the head 11 of thepiston rod- 9 to secure the I latter and the 'table tpgether, ThlS structure permits the positioning ofthe cylinders 5-' wit-hreference1to the table12as may he .foundinost convenient.

Secured tothe d r Side-56f the abllig I is a pedestal"15 designedtoengage the'anvihh table is inthe-lowermostposi.

2'when the tion. -When axsuitable fluid under pressure, compressed air being themost commonly used; motive fluid, is admitted .to-the cylinders 5,,

the pistons are caused, to rise and. through thepiston' rods 9 the table 12 is elevated and? whenthe compressed air is pjermitted to ex' 'g; 'haust from the cylinders then the table 12* will lower rapidly until the lower end" 0 the pedestal 15 comes in contact with the an-T;

vil 2 causing a sudden stoppage or jar of the table which isfutilized to cause the packing;

offsand the flasks lodged en the table A Q thecylinders 9.0 lodged. and these'bolts' may extend th g this being a common method of causing the packing of the sand in the flasks. The pres- .ent invention, however, presents decided advantages mproviding two cylinders acting at divergent points upon thetablethus permitting the pedestal to be located midway of the table and sinall cylinders to be used without in any manner affecting the sillciency of the machine. It is found in-practice that by using a plurality of power units in. separated-relation with the pedestal intermediate thereofthe device may bemade light and compact andsportable, and by providing, an extended base and means whereby the power cylinders may be located at any desired points along the base the machine is made capable of handling various sized flasks from the smallest to the largest, the

only change necessary or desirable being the change ofthe table 12 since a small table may be;used for the smaller sizefiasks and a large table for the larger flasks. The re mainder of the structure need not be changed at all except that the cylinders are adjust-- ed farther from the pedestal 15 for'a large size table than they are for a small table.

In Fig. 5 alarge table is shown and the ,adjustability of, the cylinders for the large 'tableis indicated.

Each cylinder 5 isprovided witha false bottom 16 between which andthe bottom-of the cylinder thereformed a chamber 17. which may be opened through a port 18 to .the atmosphere. i

In the false bottom or web 16.. there" is formed a valve seat 19," concentric with the walls of the cylinder 5 and connecting the vfalseloottom 16 and the mainbottom of the cylinder is a .shortcylinder 20 communicating with the valve seat 19. The cylinder 20' contains a valve 21 adapted to theyseat 19 and of a height to be capable of limited movement within the cylinder 20, the valve 21 being provided at one end with a packing ring 22, and at the other end with a valve head 23 while at an intermediate point there is formed a circumferential groove 24.- in the outer wall of the valve 21, this groove 2th serving to reduce friction. lt may however under some circumstances be omitted; EX-

te'nding axially through the valve 21'isa passage 25 1n which slides a guiding spider 2 1. The lower'end of thecylinder 5 ispro-' Vldedxwltl). a passage to the interior of the closed by a suitable screw maybe removed when itis esiredto-have.

2.6 for avalve stem 27 carrying a valve 28' adapted to a valve seat 29 formed at the end of the passage 25 coincident with the head 23 of the valve 21. A spring 30 surrounding the valve stem 27 tends to maintain the valve-28 1n the closediposition-i'n the valve cylinder 20 and this passage is normally lug 31, which access to the valve 21 for renewal or repair.

At one sideof the cylinder 5 is a nipple 32 as inon the plug 31 with the valve head 23away.

from the valve'seat 19 and the spring 30 holds the valve 28 to its seat 29/ Under these conditions the interior of the cylinder 5beneath the piston8 is in free communication with the atmosphere through the" valve seat19 and through passages 34Qformed in the cylinder 20 with the chamber 17 and from the latter to the port 18.- If now super-atmospheric pressure he established in -the passage '33 the'valve block 21 immedi ately rises until the valve end'23 is lodged in the seat 19 thus cutting off commumcation between the interior of the cylinder 5. and the atmosphere by way of the passages 34, chamber 17, and port 18. As soon as v the superior pressure within the passage 33 and interior of the cylinder 20 issufliciently I high thespring 30 willyield and thevalve 28 will open thus allowing an establishment I of the super-atmospheric pressure within the cylinder 5 underneath the piston 8 and when this pressure becomessuflicient the piston 8 will move upward and through the piston rod 9 elevate the table 12. Ifnow the pressure within the passage 33 be reduced suddenly to atmospheric pressure the spring 30 will at once close the valve 28. and now the superior ressure on the valve end of the block ,21 wi 1 cause the latter to move rapidly to the lower end of the cylinder 20, the cylinder 5 being considered as upright,.

and the interior of the cylinder 5 is at once opened to the atmosphere, and, the passages to the atmosphere being of large capacity, the pressure within the cylinder is very rapidly reduced.v The result of this is that when the interiors of the two cylinders 5 are: opened to the atmosphere the table 12 rapidly falls under the action of gravity until its movement is suddenly arrested by the engagement of the pedestal. 15with' the anvil 2 and thissudden stoppage imparts a I jar to the contents of the :fiask assumed to be present on the table 12, this. resulting in "a packing of the sand about the patterns in Secured to the base 1 is a slide valve'cas' ing 35 in. which is mounted a hollow slide valve 36 secured'to one end of a valverod 37 whichin turn passes through the head 38 of the casing 35 and through a packing gland 39 carried by said-head.

.On opposite sides of the casing are A threaded bosses 40 each receiving one end of a flexible pipe 41, the other end'of this threaded boss .32of the respective cylinder .5. These pipes or conduits 41 may be'made' of air pressure hose or where conditions .pipe being connected to the nipple or V warrant, inlay be-even made of metal. B y makingfthe pipes flexible and Passages being pm e mdi en eloi td adjustment of the cylinders towardand from the pedestal .15' without the necesslty of changing'the pipes for this purpose; n

Formed in the wall. of'thfe casing 515a conduit 42 communicating with both, bosses. 40 and T-formed in theiwalls of the slide valve 36'is a series of throughpassa'ges 43,- these slo t for the. same purpose.

When the valve 36 is one position passagesor perforations 4'3,match tl ie conduit 42 and whenthe valve 361s at the bthe'r limitof its travel, then another serie of perforations, brought into "co 1nci-, deuce with the conduit 42 sothat'in'elther case-the conduit 42 is'put into'cominunicatioiiwith the interior "of the hollow valve" 36. At another point in the valve 36, pref-Q erably near the other {end thereof a sci .ries of perforations 45,,fwhich -"when the valve is in position to cause eolncidenee of the sage 46 for me'd in: thexwall of thecasing 36 and in constante commilnication witha n air u p y;

threaded boss 47 to whieh pipe may coupled.

- isv a series offperforations 48 andforme I through the walls of the valve 36 is'a matching series of perforations 49. fThe'perfoi'ations 48 and 49. are so relatively located that they are brought into matching relation only when the slide valve36 is in positionto bring the perforations 44' in colnmnnicatlon' with the conduit 42- and the perforations 48 and 49 are out of communication whenthe perforations 43 communicate with the conduit 42 and the perforations 45-commun1 I cate withthe conduit 46;

Formed on the head es -of the is a bracketfatmffil extending one-side of the casing and'pivotally supportedat the free end of the. bracket50is' a bellcrank lever 51 having the free @4520: itsilongerf arm bifurcated and straddling a fpinr53 projecting from a block 54 mounted on, the

rod 37 to slide longitudinally thereon; The 1 block 54 restsnormally against a nut 55:0

the'rod 37 and the other'slde of" the b1ock54" is engraged by a spring 56 surroundingfthe rod 3 beyond the block andthis'spring is held in place by the washer'57 and a nut'58 applied to the free endloftherodi37. I p Secured to the pedestal 15 is a plate 59 Y on which are formed parallelribs 60 joined at one endby an inclined rib 61, the several ribs being preferably cast on'the' plat 59." One of'the ribs 60 is provided with an c1011 ated slot 62and between the'ribs'islodged a block 63 with a beveled end 64.; The block L is-held in adjusted positions between the perforations 43, withthe' conduit are; 1n communication with a condu tlor pas;

the of'th'e' casing end of the shorter 'ariii 7O inner face of the inclined rib 61 or thebeva" eled or=inclinedfface64 of the 63;

under conditions to 'bejdescribed.

Inihe'position' of the-slide valve 36 shown Figs 2 ande3 comp'ressed air entering" theboss47fwill its waythrough" the perforations 46 vand perforations 45,-

then through th-interiorof'the valve36 thence-"byway ofthe rforations 43% the? conduit; 42, these pe orations under these in communication with the conduit, 42; The compressed air now" 'flows by way of the pipes 41 to the passages 9f each cylinder 5 and thencein a man-' ner already descl'jibed to' thenndei side: of

the: Pistons pc using'the "pistons to rise. Therising o'f thepistons 8" causes a like'ele- 'vation of theftable 12 and pedestal '15 and the plate 59v with the ribs 60 and 61 and the block'63 participate in this movement; Ul-

I 64 of the block 63; ages "the roller 68, c said roller being .ltimately the beveled e assumed to beat the-lefthand en'd of its travelI-as viewedin 2 and this roller is. v

forced toward the right causing the I bell I cranklever 51 to rock in a. directionto move theend 52 downward and this causes alike movement. of the rod'37 lthus' moving the i valve 36 tothe lower position where'the peri I forations 43 areout ofooincid'e'nce with the conduit 42 and the "rforations 45 are out of coincidence with e perforationsf46.' At 1 i this point the pressure in the pipes 41, passage 33, and cylinder 5 beneath vpiston 8 be comes'equalized allowing ring 30 to-close valve 28. Then the {Mi rations 44 are bro ht into communication with the c'onduit 42 andptheperforations' 49 into coma i V munication with the" perforations "48 the latter leading to the atmosphere; whic re-' duces pressure in pipes 41,"passage 33-and;

a ve and thenthe su erior'w beneath exhaust v pressure above the valve 21 in'each cy inder 5 causes the valve to move to a' osition ning'fthe interior of each cylin er 5 to the atmosphere asbefore described. The table 12 and pedestali15 now drop rapidly andthe late 59 andribs 60 and 61 p'artic1-- pate in "movement, but before the down wardmovement of thetable 12 is arrested by the engagementof the pedestal '15 with the" anvil2, the inclined rib. 61" hasengaged 'the roller 68 andcauses" a rocking of thebell crank lever 51 in adirection'to move the 'valve 36- upwardly as viewed in the drawmgs, thus again cou ling up the'compressed 'air'supply with; the interior of the cylinders '5 to causethe lifting of the table 12 in the manner described. By this means the downs movement 'oftlie table is not by air pockets which ,would tend to cushionthe downward movementubut such down;

ward movementis rapid and the. arrest of the movement is sha and sudden this imparting the most eflic ent jar to the contents of the flask or flasks on thetable 12. I

By using two cylinders instead of one the I height of the cylinders may be materially reduced and the machine may be built very low thus making it easy to shovel sand into the flask. Furthermore the construction of the present machine contributes to its stability and eliminates vibration without the estal.

necessity of aheavy fixed base, thus rendering the machine'readily portable,

What is'cl-aimed is w 1. In a jarring machine, a table or support for flasks, separated actuating means for 'the table an intermediate pedestal for the table, and an anvil co-acting with said ped- 2. Ina jarring machine, a table or support I i for the flasks having an'intermediate pedestal, an anvil in operative relation to the pedestal, compressed fluid engines connected to the table 'on'opp'osite sides of the pedestal, and means connected-to the table for opera-v tion thereby for causing the introduction of compressed fluid into the engines simultaneously and the simultaneous exhaust thereofv .from said engines.

3. A'j arringmachine provided with an extended base and with a plurality of actuatingmeans for thejarr-ing side of the ma- ,chine adjustable along the base to or from an intermediate point of-said base.

4.- A jarring 'machine .provided with an extended base carryin an intennediately 10- cated anvil, a plurali y of compressed fluid H engines adjustable along the base toward o1:'

from the anvil, and a table removablycon nected to the engines and providedviith an V intermediate member for engaging the anvil" at one limit of travel of the tableq vith relai tion to the base.

5. In a jarring machine, provided with an intermediate'anvil,;eylim ders connected;to thebase onopposite sides of the anvil and adjustable toward and from said anvil, pistons in said'cylinders, piston rodson said pistons, a table carried by the;

ahei'ongated base piston rods inremovable relation thereto, a'

pedestal on the table adapted toen'ga ge the anvil at one limit of travel of the table,

means-for admitting compressed fluid to the. cylinders and for putting the cylinders intocommunication with. the atmosphere,""andi connections between the pedestal and the fluid controlling means for causing the op-j eration of the latter in timed relation to the movements of the table.

In testimony that I.claim the foregoing as my own, I have hereto aflixed my signa-

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