US1661745A

US1661745A - brosius

Info

Publication number: US1661745A
Authority: US
Publication date: 1928-03-06
Anticipated expiration: 1945-03-06

Description

March 6, 1928.

E. E. BROSIUS CINDER NOTCH STOPPER Filed Dec 9. 1925 4 Sheets-Sheet 1 I VENTOR March 6, 1928.

E. E. BROSIUS CINDER NOTCH STOPPER Filed Dec. 9. 1925 4 Sheets-Sheet 4 Patented Mar. 6, 1928.

UNITED STATES EDGAR E. BROSIUS, OF PITTSBURGH, PENNSYLVANIA.

CINDER-NOTCH STOPPER.

Application filed December The present invention relates broadly to an improved form of apparatus by means of which. the cinder notch or cinder tap hole of a blast furnace is adapted to be closed or opened at will, and more particularly to an improved form of mounting and operating mechanism forsuch anapparatus. I

It has heretofore been proposed in the art to which the present invention relates to prom videa furnace,bot-tiruqv apparatus or cinder notch stopper of-the typesuspendedfrom a suitable overhead supportby a plurality of levers, one of thelevers being of special construction and cooperating with. pins and 1:- slots in such manner as to slightly raise the rear end of the botting-arn'iduring backward movement thereof in order to cause the front of the betting arm to travel in a substantially straight line. Such constructions,

2 while effective generally for the purposes contemplated, have been objectionable due to mechanical diflieulties involved in the con struction and operation thereof. .4

It has also been customary in installations of this character to utilize-actuating means remotely positioned relative to the :botting apparatus itself. This has necessitated special operating connections and special constructional features for each installa'tion.

The present invention has for certain of its objects to provide animproved apparatus of this general charactensuch that a rigid and effective support for the botting armis provided, the support being of such cons StlllCtlOll' that the botting end of "the arm is moved in a substantially horizontal plane without sliding friction of the character hereto fore necessi fated Another object of the invention is to provide an apparatus which is in effect self-contained, the: actuating means constituting a component part thereof, and itself suspended or carried by the support for the botting arm. i

In the accompanying drawings there are shown, for purposes of illustration only, certain preferred embodiments of the present invention, it being understood that the'drawings do not. define the limits of my invention, as changes in the construction and operation disclosed therein maybe made without depariing either from the spirit-of the invention or the scope of my broader claims.

In the drawings:

Figure 1' is'a combined sectional and side fl (l 9, 1925. Serial No. 74,385.

elevational view, illustrating an improved cinder. notch stopper constructed in accordancewith the present invention in operative relation to a. furnace;

.Figure 2 is a sectional view on the line II1I of Figure 1, looking in the direction of theari'ows; v

. F'gure 3jis a sectional view on the line III-did of Figure 1, looking in the direction of the arrows;

.Figure 4 is a sectional view on the line IV JV of Figure 1, looking in the direction of the arrows, the furnace not being shown in this figure;

Figure 5 is a view similar to Figure 1, illustrating a modified form of the invention;

F igure 6 is a sectional View on the line VIVI of Figure 5, looking in the direction of the arrows;

Figure 7 is a view similar to Figure 5, illustrating a slightly modified embodiment of the invention; and

Figure 8 is a detail elevational view of a portion of the front link structure.

The present apparatus, in accordance with this invention, is adapted for use with furnaces of usual construction embodying a cinder notch or a cinder tapping hole 2 which may be provided with the usual monkey cooler 3 and cinder monkey cooler 4:.

Above thetapping hole 2 the furnace may be provided with a suitably constructed supporting band or girder 5 to which is attached a U-shaped yoke 6, as illustrated in detail in Figure 4. Cooperatingat one end with a yoke (3 is a horizontally extending beam structure 7 constituting an overhead support for the cinder notch stopper. The opposite end of the beam structure 7 extends below the usual bustle pipe 8 and is secured thereto by straps 9 passing therearound. In order to permit the support 7 to be correctly adjusted horizontally and vertically to bring the parts of the apparatus into accurate alignment with the cinder notch, the sides of the yoke 6 are provided with elongated openings 10 to receive bolts 11 passing therethrough, while the bottom of the yoke is provided with a similar opening 12 for the reception of a bolt 13. The bolt 13 is of such length that it-is adapted to cooperate with shims 14, any desired number'of which may be added or removed at will. This construction enables the yoke (i to be firmly secured to the blast furnace, and at the same time enables substantially universal adjustment of the support? 9 1 The apparatus may conveniently be constructed to compr'me a betting arm having one end shaped to provide anlemergency sledging head 16 by means of which the, bar may be moved by means of a sledge or the like should it become stuck to an extent to require such measures. Projecting forward- 1y f-romthe botting' arm is a botting' bar 17 on'the front"end'of which' is a stopper or bott 18"cooperating with the cinder monkey cooler. Y

The-bottingarm is conveniently carried by a system of links,"-suc'h system ooinprising a front link structure 19 and a rear=compound link structure 20. The "front link structure comprises spaced side arms cooperatin at their lower ends with a pivot pin 21 and at their upper; ends with a" pivot pin 22 extending through the support 7 Intermediate their-ends the"'side'arms carrya cross head 23 having a slot 24 through which -'passes-a-transverse1y extending pin 25. "The compound link st rncture for the rearof the bottingarm comprises side arms having a pivotal conne'c'tion 26'--'at their'lower ends with the 'botting arm, and having upper pivotal connections 27 carried by the lower ends of auxiliar -links 28 and constituting, in efiect, crank" arms mounted at -their 'upper ends on a common shaft29-e'xtcnding transversely of the'support 7 *By reason of-this construction; it 'willbeapparentthat by actuating the crankarms 28 thepiwotpoints 27 about whichthe link. structure moves mayg-be. varied at-wilhdhereby causing the rear end ofthe bottingarm to travel through any desired path. Inasmuchns it is desirable to have the front end of the betting arm travel in a substantially horizontal direction until it is clear of the furnace, it is nec essary, during the rearward movement of the apparatus, to gradually swing the crank arms 28 in a counter-clockwise direction, as viewed in Figure 1, thereby effecting a gradual raising of the rear end of the betting armand a consequent lowering of the front end thereof to compensate for the tendency ofthe link structure 19 to raise the betting arm.

For effecting the foregoing operation, there may be'provided actuating means comprising a cylinder 30 havin trunnions 31 ournaIed in bearings 32 carried by the suport 7 and projecting downwardly thererom. On the outer end of '{one of the trunnions 31 there is secured a gear segment 33,

"the teeth of which mesh witha pinion 34 on one=end of the'shaft 29. -Byreason of this construction. it will be apparent that tilting movement of the cylinder will be effective for-imparting-rotation to the pinion 34 and consequently to the shaft 29 and crank arms tween the piston rod and the cross head 21;

whereby rearward movement of the piston initially imparts no movement to the botting arm. At the end of the travel of the pin 25 in the eye 36, however, a sudden blow is imparted to the apparatus which is ctfective for releasing the same under all normal operating-conditions, and thereupon continued-travel of the piston rod 35 will be effective for moving the botting arm from the full line posit-ion illustrated in Figure 1 to the; dotted line position. During this movementthe cylinder will be caused to swing-inaclockwise direction about its [run- .nions 31 due to the. path of travel of the pin 25. This movement will in turn be effective for movingthe gear segment 33 in a clock wise directionfor rotating the crank arms 28 in'a counter-clockwise direction for thereby gradually lifting the pivotal supporting points 27 and consequently the rear end of the betting arm.

As a safety measure, there may be pro vided a safety latch 37 having a pivotal mounting 38 on the front cylinder head 39, the safety latch-comprising depending jaws 40 adapted to ride over a pin 41 projecting from opposite-sides of the piston rod and thereby lock the same in the dotted line position of Figure 1. For releasing the apparatus, the. latch is provided with an upwardly extending release arm 42 to which may be connected a cable 42 and running to the cast house wall whereby the apparatus may he released from a distance. It will be understood that the cylinder may be provided with fluid connections 43 at the opposite (nds thereof whereby fluid may be directed to or exhausted from the cylinder as required to effect operation of the piston rod 35.

It will be apparent to those skilled in the art that a compound link structure might be utilized for both ends of the betting arm to thereby obtain 'a modified path of travel of the bott, it only being necessary to so bodily move the effective supporting axis or axes as to compensate for the normal tendency of the bott-ing arm .to. rise due to the arcuate paths through which its supporting .link structures move. In the interest, however, of simplicity of construction and operation, a single compound link structure is in most cases preferable.

In Figures Sand 6 of the drawings there is illustrated a slightly modified embodiment of the invention, showing another form of compound link support. In these figures parts corresponding to parts already described are designated by the same reference characters having a prime afiixed thereto.

in some blast furnaces the cooler 50,-indi- (rated in dotted lines'in Figure'l, is projected outwardly a considerable distance'fbeyond thefurnace, as indicated, for example, in Figure 5'. {In such c'asesit may be desirable to extend the length of movement of the bott in a substantially horizontal plane and then suddenly break the line of-travel of the bott after it clears the cooler, to. thereby permit it to move upwardly to a position *in whichit is out=f the way. IIIfSUClI-CaSES the link structure 20 comprising-the crank arms' 28 may-be of slightly modified con-" Asillustrated in- Figure"5, thecrankarms 28' are not operatively connected struction;

with the cylinder30. At least -one of these arms, however, is eXtended-rearwardly in substantial parallelism-to the support '7 and carries at its outer end a='counterweight-;51-,= the counterweight tendingnormally to urge the partsinto the full line position'indicated in Figure {Upon movement of the botting arm backwardly under the influence of its actuatlng mechanism thej'llnk structure 19 operates in exactly the manner-before de scribed. The link-structure 20, however, starts moving about the pivots 275,: s0 that the rear end of the botting arm is caused to rise relatively faster thanth'eirfront end and thereby compensate for the are through which the link '19 moves: During this n'lovement the effectiveness :of the counter weight is partly overcome'to the extent that the pivots -27 move from their-full lineposi tion to theirdaslrand-dotposition of Fig ure 5. At-this'time the U shaped projec tion 52 constituting an integral part of the crank arms 28 occupies the position illustrated in chain lines in Figure 5 in engagement. with the/link structure 19.

through the projection 52 for quickly mov ng the pivotal points'27 fromtheir chain line position to their dotted line position, thcrtaipon causing movement of the botting arm, botting bar and bott from the chain line position to the dotted line position." :It will be apparent fromthe drawings, how'- ever, that. this rapid movement of :t e pivot points 27' does not occur until after thebott: has cleared the cooler. The'movement is obviously effective for relatively lengthening the link structure for the rear-of the botting arm. which in turn'tends to quickly-raise the bott and upon continued movement carry the apparatus to an upper position-iuwhich it is entirely out'o'fthe way-. g r

During the return movement of the parts the. counterweight tends to swing the crank arms 28' from the dotted line position to the chain line position as rapidly as permitted Continued movement of the bottingarm is effective shaped projection 52 is omitted, and its function accomplished-by a==trip rodopera-= tIVCly connected at one end to the pivots-127,

and at the opposite end slidably mounted in i a i pin 61-1rotatablyxcarried 'in' bearings 62 in the-:crosshead 123. At'an intermediatepoint the trip rod-is provided :with a stop or shoulder-63, and-intermediate this stop is acompression or buffer spring 64:

, l/Vith this construction =the operation is similar to that before described, rotation of the rear link structure 120 continuing about the pivots 127 until the movement of: the parts brings the end. of thecompression spring 64 into contact with the stop 63. 'limreafter.continued movementwill break thcjoint between the linkstructure'120 and the'crank arms 128, as before set forth. The buffer springrelieves the parts-of the jar to which they'aresubjected by a construction as showirinl igure In all-embodiments of the-invention the structure issuchthat the crank arms change the effective position of the axis or pivots carried thereby, the crank thereupon compensa-tngthe normal-tendency of at least the front end of the botting arm to move up \\'ardly.' This construction, embodying a shaft pivot in at" least one of the link supports, has been found to be highly desirable.

Certain advantages of the present invention arise from the provision of-a compound link support for at least one end of a bottng arm, the support being of such construe tion that the effective pivotal-axis of the supporting links is varied during the operation of the apparatus to thereby cause the bott to travel in the desired direction.

Further advantages arise from the provision of actuating means in the form of-' a cylinder of such construction that it is bothcffec'tive for imparting a'jar to the bott for loosening the same from the monkey and for effecting a change in the position of the axis of at least one of the supporting means.

Still further advantages arise from the manner of carrying the overhead support whereby it may be substantially universally I adjusted to bring the bott into the exact po sition required, thereby facilitating instal lation of the apparatus and enabling iacu- &

rate adjustment as required by continued use.

Additional advantages are inherent in the utilization of actuating means constituting a component part of the apparatus and suspended from the bustle pipe or otherwise carried by the overhead support in proximity to the parts which it operates.

1 claim:

1. In an apparatus of the character described, a botting arm, supporting means for the front end of said arm, a compound link support for the rear end of said arm, and means for changing the ,relative relationship of the parts of said compound link support about. pivotal axes only during backward movement of said arm for changing the-path of travel-of the rear end of said arm toeffect-movemcnt of the front end in a substantially horizontal plane.

2. In anjapparatus-of the character de scribed, a ibotting. arm,-link. supporting means for the front-endof-suid arm, a compound linksupport-for the rear end of said arm, and actuating meansv for simultaneously moving said;botting arm backwardly and changing the relative relationship of the parts of said compound support about pivotal axes onlyfor changing the path of travel ofthe rearend of said arm.

3. In an apparatus of thecharacter described, a bottingarn'i, supporting means therefor, actuating means therefor, and a lost motion connection between the betting arm and actuating means for imparting a jar for loosening the botting arm when the actuating means is operated in one direction..- i

4. In an apparatus of the. character described, .a botting, =arm, supporting means therefor, actuating means therefor, and a lost motion connection between the betting arm and actuating means for imparting a jar for loosening the botting arm when the actuating means is operated in one direction, said actuating means comprising a cylinder and piston. I

5. In an apparatus of the character described, a bott, power actuating means for said bott, and means connecting the power actuating means and bottfor imparting a jar to the bott upon operation of the a.ctuat ing means.

(i. In an apparatus ofthe character described, abotting arm, a supporting link for the front end of said arm, a supporting link for the rear end of said arm, a crank in which said last mentioned supporting link is pivotally connected, and means for moving said crank =during rearward movement of the arm for gradually raising the pivotal-point about which said last mentioned link is effective.

7. In an apparatus of the character described, a botting arm, a supporting link for the front end of said arm, a supporting link for the rear end of said arm, a crank to which said last mentioned supporting link is pivotally connected, andmeans for moving said crank during rearward movement of the arm for gradually raising the pivotal point about which said last mentioned Link is effective, said means comprisinga pivotally supported actuating cylinder operatively connected to said botting arm. 1

8". In an apparatus of the character described, abottingarm, a support for the front end of said arm, a.link operatively connected. to. the rear end of said arm, a

crank to which the upper end of said link is ,pivotal'ly.connected, and means effective upon rearwardmovement of said arm-for gradually raising-said pivotal connection.

Qt-In arr-apparatus of. the character described, .a.=bot-ting arm, a support for the front end of said arm, a link operatively connected tothe rear end of said arm, a crank to which ill-IUUPPOI end of said .link is p-ivotally connected, and means effective upon rearward movement of said arm for gradually raising said pivotal connection, said means comprising a pivotally mounted actuating.cylinder- 10. Apparatus of the characterdescribed, comprising a support, a butting arm carried'thereby, and means for vertically and horizontally adjusting one end of said supportl1. Acinder notch stopper, comprising a support, a betting-arm carried thereby, and actuating means for said bott-ing arm, said actuating means comprising a cylinder and piston pivotally mounted on said support.

12 A cinder'notch stopper, comprising a support, a betting arm carried .thereby, and actuating means for said butting arm, said actuating means comprising a cylinder and piston pivotally mounted on said support, a lost motion connection between said piston and botting arm for imparting a jar to the bottingarm upon movement of the piston in one direction.

13. In an apparatus of the character described, a botting arm, link supporting structu-rrcsLfor opposite ends of said arms, one of said structures being of compound nature comprising one: portion effective as a crank and anotherT-portion elfectiveas a link, and means operative upon initial rearward movement of said botting arm for effecting relative movement between said crank and link for compensating the normal tendency of the front end of said betting arm to move upwardly. i

14. In an apparatusof' the character described, a "botting arm, link supporting structures for opposite ends of said arms, at least one'of said structures being of compound nature comprising one portion efiec- .tive as a crank and another portion effective as a link, and means operative upon initial movement of said betting arm in either direction to effect relative movement between said crank and link to vary the normal path of travel as defined by said link supporting structures moving about its axes.

15. In an apparatus of the character described, a botting arm, link supporting structures for opposite ends of said arms, at least one of said structures being of compound nature comprising one portion effective as a crank and another portion etl'ective as a link, means pivotally connecting said port-ions to permit relative movement there between, and means operative upon initial rearward movement of said botting arm for changing the effective position of the axis about which such compound link structure is operative.

16. In an apparatus of the character described, a botting arm, link supporting structures for opposite ends of said arms, at least one of said structures being of compound nature comprising one portion effective as a crank and another portion etl'ective as a link, means pivotally connecting said portions to permit relative movement therebetween, and means operative upon initial movement of said botting arm in either di rection for causing movement of said crank arm to change the effective position of the axis carried thereby.

17. In an apparatus of the character described, a bot-ting arm, link supporting structures for opposite ends of said arms, at least one of said structures being of compound nature comprising one portion effective as a crank and another portion efiective as a link, and means operative upon initial movement of said botting arm for causing said crank to compensate the normal tendency of at least the front end of said botting arm to move upwardly.

18. In an apparatus of the character described, a botting arm, a plurality of link supports for said arm, one of said link supports comprising relatively movable parts, and a shifting pivot in said last mentioned link supports pivotally connecting the parts thereof.

19. In an apparatus of the character described, a betting arm, a plurality of link supports for said arm, one of said link supports comprising relatively movable parts, a. shifting pivot in said last mentioned link supports pivotally connecting the parts thereof, and means for-shifting said pivot.

20. In an apparatus of the character described, 11 bot-ting arm, a plurality of link supports of substantially equal length for said arm, and means for causing the supporting ends of said links to travel in arcs of different radii during at least part of their movement, said means comprising relatively movable parts in one of saidsupports and a shifting pivot in pivotally connecting said parts.

21. In an apparatus of the character described, a betting arm, a support for the front end of said arm, a link operatively connected to the rear end of said arm, means for effecting movement of said arm into and out of operative position, and means pivotall v cooperating with said link and effective before conclusion of the movement of the arm into inoperative position for changing the normal arc of travel of at least one end of said link.

2-2. In an apparatus of the character described, a botting arm, a plurality of link supports for said arm, a shifting pivot in and connecting relatively movable parts of at least one of said link supports, means for gradually shifting said pivot during one portion of the movement thereof, means for suddenly shifting said pivot during another portion of such movement.

In testimony whereof I have hereunto set my hand.

EDGAR E. BR-OSIUS.