US314614A

US314614A - Machine foe

Info

Publication number: US314614A
Authority: US
Publication date: 1885-03-31
Anticipated expiration: 1902-03-31

Description

(No Model.)

N. SHAW.

MACHINE FOR APPLYING BABBITT METAL LININGS T0 BEARING BOXES. No. 314,614. Patented Mar. 31, 1885.

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UNITED STATES PATENT OEEIOE.

NOAH SHAW, OE EAU CLAIRE, WISCONSIN, ASSIGNOE To ADDIE M. SHAW,

OE SAME PLAGE. 1

MACHINE FOR APPLY'ING BABBlTT-METAL LlNlNGS T0 BEARING-BOXES.

SPECIFCATEON 'forming part of Letters Patent No: 314,614, dated March 31, 1885.

Application tiled October 17, 1884. (No model.)

To all whom t may concern.-

Be it known'that I, NOAH SHAW, a citizen of the United States, residing at Eau Claire, in the county of Eau Claire and State of Visconsin, have invented a new and Improved Machine for Applying Babbitt-Metal Linings to Bearing-Boxes, of which the following is a specification.

My improved machine for applying the liu ings, which will be hereinafter described and specifically claimed, consists of different combinations of mechanical parts, whereby different series of different-sized bearing-boxes can be produced very accurately and expeditiously'without danger from flaws, loss from waste of metal, and with less labor and expense than heretofore, and the said combinations of parts being such that the halves of pillow-block or pedestal or other forms of divided bearingboxes can be readily put in concentric position and clamped around any desired sized core, with their Babbitt-metal space divided into two chambers; that interchangeable cores can be used, and these cores centered and adjusted for properly receiving the melted Babbitt metal which forms the half-linings of the two halves of the box; and that the finished halvesof the box can be quickly removed; and to effect these objects it is only necessary to adjust a core-centering carriageplate in proper relation to a determined number of a scale; place a numbered core upon a centering device of this carriage, apply the lower half of a bearing-box against a vertical gage and clamp-plate of a table behindthe core and upon a packed flange of the core; place the upper half of the bearing-box against the said lower half and upon the said packed iiange and forward of a clamping-screw; place proper-sized centering and dividing or parting plates in the rabbets of the j oint between the two halves of the bearing-box, thereby laterally centering the bearing-box and dividing its Babbitt metal chamber into two parts; clamp the two parts of the bearing-box together and against the gage and clamp-plate of the table; introduce the melted Babbitt metal at one end of the bearing-box, and pour it into the spaces between the core and the semi-cylindrical, or nearly so, surfaces of halves of the box; allow the metal to become solid;

unclamp and remove the upper halfofthe@ lbabbitted bearing-box, run back the corecarriage andremove thelower halt' of the bab bitted box from the core; continue this operation until a full complement of a given sized babbitted bearing-box is completed; remove the core, and substitute either a smaller or larger core for aditferentsize or series of babbitted bearing-boxes, and repeat the operation just described until a full complement of this series and size is completed.

In the accompanying drawings, Figure 1 is a perspective view of the babbitting-machine, showing also an ordinary divided bearing-box put in position and ready for being filled with Babbitt metal. Fig. 2 is a top view of the saine, and Fig. 3 is a vertical transverse section of the same.

The platform of .the machine is designated in the drawings by A, and it may consist of an ordinary table, around the edge of the top a of which a raised rim, a', may be provided in order to retain any casually-spilt Babbitt metal. On the top a, at the front side, au oblong rectangular extension is provided, and at the sides of said extension and across the table rabbeted or dovetailed guides a2 are formed or applied', and on said extension and the top a, between the rabbeted guides a2, a carriageplate, B, is snugly fitted, so as to slide back and forward thereon without lateral move-v ment. This carriage-plate is moved by means of a screw, C, which is provided with a handwheel, c, secured in an ordinary mannerjto a lug, b, of the carriage, and fitted into a nutlug, a3, of the top a'ot' the table.

To the rear end ofthe plate B,l an upright y centering-pin, D, or other suitable centeringA contrivance, is firmly attached, so asv to stand opposite to and centrally between the ends of an upright gage and clamping-plate, E, whichis either fastened to Or forms a part of the top a of the table. be exactly vertical and parallel with Y each other, because in the operation of the machine the bottom surface ofthe lower half, P', of a pedestal or other bearingfbox to be babbitted is made to rest against said plate, while the pin D holds in position ametal gaged central core, F, aronndwhieh, excepting where certain centering and dividing or parting plates,A

The plate E and pin Dshould roo K, are applied, the melted Babbitt metal is poured after the other half, P, of the bearingbox and the centering and dividing or parting plates are properly adjusted for this opera- In practice a sufficient number of acculately-turned or nicelygaged exchangeable metal cores F of different sizes are provided to suit the different diameters of Babbitt linings for the bearing-boxes. The metal core F rest-s on a collar, d, of the pin D, and is provided with a broad collar, f, at its lower end, and with a porous or felt washer, f', resting on the collar f, as shown. In front of the pin D the carriageplate B is provided with a sliding angular plate, G, which is placed on top ofthe carriage-plate, and which, by means of a central longitudinal rib, g, on its under side and a central longitudinal slot, b, in the carriage-plate, is kept firmly in central position with the pin D, while by means of a bolt, g', passing through it and the slot b it can be moved toward or from the pin D any desired distance and fastened. The upright portion of the plate G is provided with an upright slot, g", through which the reduced portion of a verticallyadjustable nut, H, is passed. Said nut has a head, h, at one side of the plate G, and an outer screw, h', at the other side of the same, upon which outer screw a nut, h2, is fitted, and by this construction the nut can be raised or lowered in the slot g2, accordingly as the bearing to be babbitted is long or short, and after the adjustment is made the head h can be drawn tight against the plate G, for the purpose of retaining the the nut H at the desired elevation. Into the nut H a screw, I, is 1itted,which is provided wit-h a hand-wheel, t', at the outer end, and a clamp-disk, z, atthe inner end, to which the screw is swiveled. IVith the aid of this screw the top half, P, of a pillow or pedestal bearing-box is clamped in proper relation to the lower half, P', of said box on the rear side of the core F and its centeringpin D, as shown. The rabbeted fixed guides a2 of the table are marked with suitable indicating scales, J, while the plate B is provided with a pointer or indicator line, j.

The scale-line which serves for indicating the number or size of a given bearing-box answers the position of the carriage-plate B pointed out bythe line j. Thus, when the indicator-line j on the carriage-plate B and the indicating-scale line (marked 3ft) on one of the guides a2 stand in line, the pin D will then have been adjusted to its right position for receiving a core for forming a Babbitt lining in a bearing-box adapted for receiving a shaft three and three-fourths inches in diameter, and in such case a core, F, three and three-fourths diameter, and marked 32, is placed on the pin D. Answering t0 different sizes of bearingboxes to be babbitted, I providedifferent sizes of cores F and several different-sized pairs of centering and dividing or parting plates K. With each coreand pair of plates a full complement of aseries of beari ings can be babbitted. The plates are hung on hooks 7c inserted into the plate E beneath numbers conspicuously marked on the upper edge of said plate, as shown in Fig. 2, the numbers on the plate E corresponding, respectively, to the numbers on the scalesJ and cores F. The plates of a pair are exactly alike in form and size, and a pair are used in connection with each-sized core. A plate is inserted in each of the rabbeted surfaces of the lower half of the bearing at the pointp between the two halves of the bearing, and these plates,being respectively of the required width, touch the core F and the corners of the rabbets, thereby centering the two halves tween the two halvesuof the divided bearing, i

and insuring their being held in position centrally with the core, but out of contact withI it except where the parting plates touch the core after once being clamped; and while the' plates K center the bearing-box laterally, the gage and clamping-plate E, in conjunction with the clamping-screw I, secure the bearing in a central position with respect to the core, in a direction at right angles to the firstnamed position.

By means of the plates K the Babbitt metal for forming the lining in the lower and uppe'r halves of the bearing-block is divided into two parts, and therefore the halves of the bearingbox with the Babbitt lining in them can be readily removed from the core when the Bab- The hooks k and bitt metal becomes solid. the numbers on the plate E, in conjunction with the scales J and numbers on the cores F,- att'ord great convenience to the operator in the handling of the plates K, it only being necessary for him to look at the size of the core or the adjusted vposition of the same on the scale, and then to take from the hooks two plat-es which are opposite numbers corresponding to the number of or to the adjusted position of the core with respect to the number on the scale.

Vhen the machine is to be used, the desired size of the bearing is ascertained, and a core, F, corresponding thereto is iitted on the ceutering-pin D. The carriage-plate B is then moved by the screw C until its indicator-line j stands in line with a number of the scale on one or the other of the guides a2, corresponding with the number of the bearing-box. The lower half, B', of a bearing or box is now placed endwise upon the felt or other suitable packing-washerf ofthe core F, with its bottom p touching the plate E, and its semicircular top surface a proper distance from the core, and then the upper half, P, of the box is placed in like manner on the washer f of the said core F, with its semicircular surface IIO a proper distance from the core, its position being between the core and the clamp-screw I; and now the proper dividing or parting plates K are placed into the rabbeted portions of the joint between thetwo halves of the box, with their inner edges touching the core F, and then the screw is turned up until the two halves of the bearing-box are firmly clamped against the dividing-plates and the gage and clamp plate E. The melted Babbitt metal is now poured at one end of the box into the two semi-cylindrical spaces around the core F, and by the felt washer it is prevented from leaking out below, and when it has become hard the screws of the carriage-plate B and of the plate G are turned back, and the babbitted bearing-box released, so that the two halves thereof can be removed, being now in a finished condition. The described operation is repeated until any desired number of a given size of bearing-box are babbitted or lined with Babbitt metal, and when the full complement is babbitted the core is removed and either a smaller or larger one brought into use for the operation of babbitting a series of a differentsized bearing-box.

W'ith my invention a given number of bearing-boxes can be babbitted in a more perfect manner and in a much shorter time than is possible with the ordinary modes, inasmuch as with such modes the adjustments of lthe core are slowly made by hand, and the vdivided bearing-box is necessarily provided with end guards or rims, which require to be filed or turned to t the core, and between which and the core the melted Babbitt metal frequently and wastefully as well as injurionsly leaks, causing uneven places and blow-holes in the Babbittlinings ofthebearing-boxes; and boxes lined by my machine will all be of standard size and ofthe same depth from center to bottom of box, thus saving a great amount of trouble in putting the boxes in position for use. This result is secured by means of the carriage plate and the scale J.

The machine will greatly reduce the cost of babbitting or fitting boxes, it having been found by experience that with the proper con. venience for melting the Babbitt metal forty or fifty boxes can be easily tted in an hour; and as the boxes are securely clamped in position by simply the clamp-screw I and plate E, and no extraneous bolts or clamps being necessary, rapid work in the babbitting operation is rendered practicable. As the machine allows of the melted metal being poured in that end of the box which is uppermost when clamped in the machine, both spaces can be filled at the same time, and the metal by being thus poured in forms more perfect linings than if put in in the ordinary way, and no matter how slightly fluid the Babbitt metal may be the spaces will always be filled.

In the manufacture ofthe machine for useI propose to furnish, say, twenty-four corestwelve for cold-rclledshafting and twelve for turned shafting. r[hose for the cold-rolled shafting as well as the others will be of differ# ent or gradually-increasing diameters, and for lining boxes for turned as well as for coldrolled shafting a provision is made by making the cores of a larger size or gage than the shafts they are to be used with, so as to allow for shrinkage of the lining of the box during the cooling of the metal, and permit the shaft to turn freely in a newly-babbitted box,there by saving the expense of scraping or turning down to the proper size, and also avoiding that destructive friction experienced from the use of babbitted boxes produced by the most common means-viz.,by babbitting around the shaft. The result of the friction mentioned is that many of the linings are melted before the shaft has worn them to the proper size, causing delay and expense, which is avoided by having the cores of the proper size.

In the machine represented by the drawings the scale is adapted for boxes of three and threefourths inches; three -inch for turned shafting, and a three-inch for cold-rolled shafting, and also a two and ve-eighths for turned shafting, and all these will t the same pin D,

vided which are suited to the production of roo any and all sizes of bearings, according to the requirements of different establishments.

I do not regard it absolutely essential, while it is preferable, that the pin D should extend up entirely through the core, for it might be practicable to hold, center, and adjust the core on the carriage-plate B by providing a socket or hole in the carriage-plate, and having an extension on the core below its flange, and setting and securing said stem in the socket; or a short centeringboss might be provided in lieu of the pin D on the plate B, and the core tted and secured upon the same.

The washer f may be made of any suitable soft, or ductile, or compressible, packing material, but I prefer to make it of either wool, hair, or mineral felt; and by the use of such a washer, instead of hard metal, or a clay or putty washer, a very tight packing is secured, and danger from air-traps or blowholes avoided. The washer f might be placed upon the top of the carriage-plate, and the flange of the core might be left off; but I prefer to have the flange formed on the core and the washer applied upon it, as described.

It will be evident that if, for any reason, it should be deemed desirable to construct the machine for lining only one size of bearingbox, the core might be a xture with the carriage-plate, and such machine with fixed core, it is intended, shall be embraced as my invention under this patent.

IIO

IIS

It might be practical to employ a longer table with a longer clamp-plate E, and to provide a broader core-carriage, and set a nu1nber of core-pins D for difierent-sized cores in a line upon this carriage, and to provide a number of separate clamping-screws I, and thus adapt the machine for lining a series of differentsized bearing-boxes at one time.

The gage-plate E might be made to move to or from the core, and the core kept stationary; or both the plate E and the core might be made to move toward or from each other by appropriate mechanism, and theadjustable plate G might be made a part of or be bolted firmly to the movable carriage B, but for convenience is better if constructed as shown.

What I claim. as my invention, and desire to secure by Letters Patent, is-

l. In a machine for applying Babbitt-metal linings to bearing-boxes, the combination of the half-boxes, the core, and the spacingl strips, substantially as and for the purpose described.

2. The combination, with a babbitting-machine table or platform provided with a gageplate, E. of a centering and adjustable carriage-plate, B, provided with a core, F, substantially as and for the purpose described.

3. The combination, with a babbitting-machine table or platform having a gage-plate, E, and scale J, of a centering` and adjustable carriage-plate, B, provided with a removable core, F, substantially as and for the purpose described.

4. In a machine for babbitting bearings, a table, A, comprising a rear gage and clamping plate, E, a Carriageplate, B, having a centering device for receiving a core, and a clampscrew, I, substantially as and for the purpose described. i

chine table or platform having a clamping plate, E, and a centeringcarriage, B, provided with aY removable core, F, of a horizontally-adjustable plate, G, provided with a ClampscreW, I, and applied on carriage-plate B, substantially as described.

7. The combination, with the babbittingmachine table or platform having the clamping-plate E, and core-centering carriage B, carrying a removable core, F, of the horizontally-adjustable plate G, having a vertically.- adjustable clamp-screw, I, substantially as and for the purpose described.

8. A babbitting-machine provided with laterally centering and dividing or parting plates K, a removable and horizontallyadjustable core,F, clamping-plate E, and a clamp-screw,

I, substantially as described.

9. The indicating-scales J on a table or platform, A, having a gage-plate, E, with a horizontally-adjustable plate, B, having an indicator, j, and centering and carrying a removable core, F, substantially as described.

l0. The indicating-scale ou the plate E, in combination with the hooks k, applied on said plate, the plates K, the scales J of the table A, the indicator j of carriage B, anda series of removable cores, substantially as and for the purpose described.

NOAH SHAW.

Vitnesses:

D. M. DULANY, J r., C. A. CHAMBERLIN.

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