US2817289A - Machines for forming journal box packing rolls - Google Patents

Description

Dec. 24, 1957 .1. w. BRUNNER ET AL 2,817,289

MACHINES FOR FORMING JOURNAL Box PACKING ROLLS Filed Feb. l0, 1955 3 Sheets-Sheet 1 BY uw A TT ORNEYS.

Dec. 24, 1957 J. w. BRUNNER ETA; 2,817,289

MACHINES FOR FORMING JOURNAL Box PACKING RoLLs Filed Feb. 1o, 1955 5 Sheets-Sheet 2 Il? ab INVENToRs.-

James W /'a/mez BY Jack 'owaiz ATTORNEYS.

Dec. 24, 1957 J. w. BRUNNER ETAL 2,817,289

- MACHINES FOR FORMING JOURNAL Box PACKING RoLLs Filed Feb. 10,'1955 3 Sheets-Sheet 3 A TTORNE YS.

United States Patent O MACHINES FOR FORMING JOURNAL BOX PACKING ROLLS James W. Brunner and Jack Cowan, Altoona, Pa. Application February 10, 1955, Serial No. 487,374 2 Claims. (Cl. 10U- 87) This invention relates to machines for forming journal box -packing rolls, and more .particularly relates to machin-es for forming packing rolls of the type used in lubricating the journal-s of railroad rolling stock utilizing plain bearing journal-s and journal bearings.

Journal box packing rolls are -widely used throughout railroad systems as a means for lubricating journals and journal bearings of rolling stock where the so-called plain bearings are utilized. In practically all applications, such jou-mal box packing is composed of either cotton waste, cotton textile, or combinations of cotton and wool waste, heavily impregnated with lubricating oil. The packing stock is generally formed into rolls which are placed side by side in the journal box, below the journal, so as to form a lubrication bed which wipes or Ilubs against the journal. The packing rolls are generally positioned transversely of the axis of the journal, with the innermost roll adjacent to the dust guard seat of the journal box. When it is desired to lubricate a journal and its bearing, oil is poured into the journal box and permeates through the packing to the periphery of the journal.

Journal packing is generally formed into rolls of varying sizes to accommodate the various sizes and types of journals and journal boxes currently in use.

Heretofore, journal box packing roll-s have been made by hand. However, hand made rolls have not been fully satisfactory due to the diflculties encountered in attempting to form them of uniform size, texture and resilience. Regardless of vthe amount of skill and care exercised, experience has shown that it is virtually impossible to make packing rolls all of which have the same diameter, resilience and smoothness, and which are free of lumps. In addition, preparation of packing rolls by hand is a generally time consuming process.

The present invention is directed to a machine designed to overcome the difficulties enumerated above and to lgreatly expedite the production of journal box packing in Iroll form. It is ac-cordingly an object of this invention to provide a machine for rapidly .producing packing rolls of uniform size, resilience and smoothness, and which are free of lumps.

It is a further object of this invention to provide a machine for forming journal box packing into rolls of varying sizes to meet the requirements of the diiferent types and sizes of journal boxes and journals currently 1n use.

#It is a further object of this invention to provide a machine for forming journal box packing roll-s incorporating a rotatable cylinder having a plurality of pockets for receiving the mass stock from which the rolls are formed, means for imparting rotary motion to the cylinder, an idler roller, an adjustable guide roller, an endless belt encircling the drums and roller-s, and means whereby the adjustable roller may be selectively spaced from the cylinder to vary the slack of the belt proportionately to the size of the packing rolls being formed.

'Other objects and advantages of this invention will be ,apparent from the following detailed description of a [preferred embodiment thereof, reference being had to the accompanying drawings wherein:

Fig. 1 is a side elevation of a preferred embodiment of this invention, partly broken away, showing one of the cylinder pockets in loading position.

Fig. '2 is a top plan view of the machine.

Fig. 3 is a longitudinal section taken along the line III-III of Fig. 2 and shows the manner in which a packing roll is formed upon clockwise rotation of the cylinder.

Fig. 4 is a longitudinal section taken along the 'line IV-IV of Fig. 2 and shows the manner in which the packing #roll is removed upon counterclockwise rotation of `the cylinder.

Fig. 5 is an enlarged view, partly broken away, of a retractable latch means with the latch pin extended to lock the drum against rotation.

Fig. 6 is an enlarged view, partly broken away, of a retractable latch means with the latch pin withdrawn to permit rotation of the drum.

lFig. 7 is a fragmentary perspective view showing the segmental helical cam surface on the left-hand end of the crank handle.

Fig. 8 is a fragmentary perspective view showing the opposing segmental helical cam surface on the latch pin knob.

Fig. 9 is an exploded view in perspective yshowing a preferred :manner for securing the crank arm to the drum shaft.

fFig. 10 is a perspective view, partly broken away, showing the usual manner in which packing rolls are placed in a plain bearing journal box.

yIn the drawings, the numerals 10 and 11 denote, respectively, rightand left-hand housing side plates which, as will be explained, provide supports for the bearings of the various rotatable parts of the machine. Mounted between the side plates 10 and 11, on shaft 20, is a rotatable cylinder or drum 12 having a plurality of axially disposed pockets 13a, 13b and 13e. Each pocket is of a different size or content to accommodate different quantities of tex-tile stock commensurate with the desired size and weight of the packing rolls to be formed.

As shown in Fig. 4, the cylinder 12 is formed from a plurality of elongated angles 14a, 14h and 14e and a plurality of cover plates 15a, 15b and 15C successively dispos-ed between and contiguous with the elongated angles 14a, 14h and 14C. The cover plates are formed with lips 16a, 1619 and 16C which overlap and are welded to the elongated sides of the angles Mb, 14's and 14a, respectively. It will be noted that t-he cover plates have arcuate segments 17a, 17h and 17e, formed on a radius having its center at the center of shaft 20, and depending convex segments 18a, 1811 and 18C which terminate at and are welded to the inside corners of the angles 14a, 14]; and 14a. IIn order to reinforce the cover plates 15a, 15b and 15C, stiifening angles 2l are welded to the insides thereof adjacent to the s-eams formed by the juncture of the arcuate and convex segments. A pai-r of end plates 19, having the cross-sectional configurations of pockets 13a, 13b and 130 cut therein, complete the construction of cylinder 12.

The shaft 2@ is journaled in bearings 23 supported in the side plates l@ and 1l. Rotary motion is imparted to the cylinder 12, through shaft 2t), by means of a crank handle 24 and a crank arm 25. As shown in Fig. 9, the right-hand end of shaft 20 is formed with an extension 26 of polygonal cross-section and a protruding threaded stud 27, and the crank arm 25 is formed with a polygonal aperture 2S. The crank arm 25 and the drum shaft 20 are assembled by sliding the shaft extension 26 through the aperture 28 and securing the same in place by means of the stud 27, appropriate washers and a nut,

Ithe ,rnachine. 'Neoprene impregnated canvasduck, `but `may also be Ation in bearing blocks 30.

A pair of bearing blocks 30, having aplurality of bearing notches 31, are spaced from the cylinder shaft bearings 23 in side plates '10 and 11. The notches 31 areinclined slightly in the direction of the cylinder,"p'ref erably at an angle of about 7 to` the'vertical.4 The notches `31 provide mountings for selectively'sr'aacing a rotatable guide roller 32from cylinder 12. Disposed between cylinder 12 and roller 32 is a rotatable idler roller 33 journaled in bearings 34 supported-by plates 10 An endless beltv 35 encircles drum 12 and rollers 32 and 33, and is of a texture vadapted to'p'rovide `friction on the cylinder and rollers suicient topermit operation of The belt 35 vis preferably made from made of any fabric or meshsteel coated with Neoprene or suitable rubber, and is of a length suicient to permit ,to be depressed along "the contines of one of the pockets 13a, 13b and 13e, as shown in Fig. 1.l

The purpose of the guide or adjustable roller 32 is to varythe degree of slack lon belt 35 proportionately to thesize of the packing rollbeing formed; For each pocket of cylinder 12, roller 32 has a` corresponding posi- In the particular machine illustrated in the drawings, provision has been made for lthe formation of packing rolls having diameters, respectively, of 31A inches, 3%k and 4 inches. If it is desired 'to make a 4 inch roll, the largest pocket 13a is utilized and adjustable roller 32 is engaged in the notch 31 below ,which the scale indication 4 appears. If it is desired to make a roll of 3%, inches, the smallest pocket 13C is ,utilized and adjustable roller 32 is engaged in the notch j31 having the scale reading of 3% inches.

Mounted on the outside of side plate is a latch plate 36 concentric with shaft 20. A plurality of latch pockets 37,- circumferentially spaced in latch plate 36, are

`adapted to receive a retractable latch pin 38 mounted internally of crank handle 24. In order to avoid exrcessive wear on latch plate 36, latch pockets 37 are re- .,inforced by annular bushings 39. A spring 40 is normally adapted to urge the latch pin 38 into engagement with the latch pockets 37. A retractable latch means,

comprising a knurled latch pin knob 41 having a contiguous segmental helical cam 42, cooperating with a. second segmental helical cam 43 contiguous with the vcrank handle 24, serves to retract the latch pin 38 from .the latch pocket 37 and to secure it in such retracted position by cooperation of the cam surfaces 44 and 45.

Load limit lines 46 are inscribed on the insides of j 'sideplates 10 and 11 for the purpose of indicating the amount of mass stock to be placed into the pockets 13a, 13b or 13C.

In order to secure the machine into a solid unit, a

. plurality of tie rods 49 having threaded ends are mounted internally of spacers 47 spaced from one another transversely of the machine, as best shown in Figs. 1 and 2.

Nuts threaded onto the ends of the tie rods 49 serve to pull the side plates 10 and 11 firmly against the spacers 47, thereby assembling the machine.

The operation of the machine is as follows. For the 1 purpose of explanation, it will be assumed that a packing roll having a 4 inch diameter is to be formed. The first step is to rotate the cylinder 1.2 until the crank handle is adjacent to the latch pocket bearing the indication 4",

1 thereby positioning the largest pocket 13a immediately below the load limit line 46. The cylinder 12 is then locked into this position by releasing the latch pin knob 41 so as to permit the latch pin 3S, under the force of j spring 40, to engage the latch pocket 37. With cylinder v 12, thus locked, the adjustable roller is positioned in the notch 31 having the scale reading 4". Belt 3S is then depressed into pocket 13a and mass packing stock 50 inserted into pocket 13a over belt 35 until the pocket is filled to the limit line 46, all as shown in Fig. 1. There- 1111011., latchrin `318 is retratedand Cylinder ,12 rotated by means of crank hand1e 24 and crank arm 25, in a clockwise direction.

As shown in Fig. 3, the rotation of cylinder 12 in a clockwise direction will cause the mass stock to be ejected from the pocket 13a, between cylinder 12 and roller 33, and formed into a roll 51 as a result of the bufng action of the drum' 12, belt 35'and roller 33. After the packing roll 51 has been properly formed, by continued rotation of cylinder 12in afclockwise direction a suitable number of times, cylinder 12 is rotated counterclockwise causing the packing roll l51l to drop back into pocket 13a, from which it is ejected, to the left of the machine, over cylinder 12. The above procedure is adopted for the formation of packing rolls having different diameters, but it must be kept in mind that the adjustable roller 32 must be properly'mounted in the bearing block 30 so that the slack on -thej belt k35 will correctly correspond to the pocket selected for vforming the packing yroll 51.

In order to provide drainage of the oil residue from the mass stock, drainage holes may be drilled in segments 17a, 17b -and 17e of the cover plates 15a, 15b and 15e. f

lIt will be understood, of course, that any desired number of pockets may be formed in the cylinder, including a single pocket, but it is essential that for each pocket of a varying 'size there be provided a corresponding notch in the bearingblock 30 so as to furnish means to properly space ro1ler32 relative to cylinder 12 to provide the proper degree of slack on the belt 35 for forming a packing roll of the desired diameter.

It is'to be further understood that the`distance between the` side plates 10 and 11 may be varied, with correspondingvariation in the length of the drum, rollers, belt, etc.f,`sof'as'to" permit themanufacture of packing rolls of any *desired length.

While a preferred embodiment of this invention'has beenvparticularly described and illustrated, it is to be understood 'that various modifications and changes in the shape', size, vproportion and arrangement of the parts may be resorted to without departing from the scope of the appended claims.

Having'thus'described our invention, we claim:

1. -In a machine for forming journal box packing rolls fromv textile waste, a frame having laterally spaced upright side members; a cylinder affixed to a shaft rotatively borne inthe frame members and provided with annularly ispacedfpockets'of 'different sizes circumferentially thereof; a guide ,rollrotatively supported between the frame members at the top thereof laterally adjacent the cylinder; an endlessy belt trained about the cylinder and the guide roll with allowance of slack for depression of the belt intonthe individualpockets ofthe cylinder; an operating crank arm` aixedto one end of the cylinder outwardly beyond one of the frame members; and retractable latch 2. vThelmachine of claim 1 further including an idler A roll also rotatively supported between the frame members with capacity for being positionally adjusted to regulate thel slack of the belt in accordance with the particular pocket of thecylinder being used.

References Cited in the le of this patent UNITED STATES PATENTS Brown June l2, 1900 l 1,146,680 f wright `1uiy 13,1915 f 1,258,311 Bremer Mar. 5, 1918 71,330,860 f ,Galt-,1, Feb. 17, 1920 4 2,273,787 Phillips T; f Feb. 17, '1942 2,302,926? I' White i. L NOV. 24, 1942

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