US1176303A - Method of providing tubular bearings with antifriction-linings. - Google Patents

Description

H. B. LAYMAN.

METHOD OF PROVIDNG TUBULAR BEARINGS WITH ANTIFRICTION LININGS. APPLICATION FILED AUG.6. I915- 1,176,303. Patented Mar. 21, 1916.

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3614 PL 5 alto M11 H. B. LAYMAN. METHOD OF PROVIDING TUBULAR BEARINGS WITH ANTIFRJCTlON LININGS.

APPLICATION FILED AUG.6. I915.

1,176,303. Patented Mar. 21, 1916.

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HEBRCN B. LAYIVIAN, OF NEW YORK, N. Y., ASSIGNOR TO THE LAYMAN PRESSED ROD 00., INC., 013 NEW YORK, N. Y. A CORPORATION OF NEW YORK.

METHOD OF PROVIDING TUBULAR BEARINGS WITH ANTIFRICTION-LININGS.

Specification of Letters Patent.

Patented Mar. 21', 1916.

Application filed August 6, 1915. set-nu No. 43,939.

. To (1/! whom it may (once/'11.

lie it known that. I, Ilicunox B. Lxvnxx, a citizen of the United States, and residing at Xew York. in the county of New York and State of New York. have invented a certain new and useful Improved Method of Providing .ubular Bearings with Antitriction-Linings, of which the following is a specification,such as will enable those skilled in the art to which it appertains to make and use the same.

This invention relates to anti-friction linings for tubular bearings of any class and particularly to the bearings at the larger end of connecting rods through which the Cl'2llIbS of crank shafts pass; and the object of the invention is to provide an improved method of providing such bearings with anti-frieticn liningsof Babbitt metal or similar metal; and with this and other objects in view the invention consists in the method hereinafter described for the purpose set out. w

The invention is fully disclosed in the following s 'iecification, of which the. accompanying drawing forms a part, in which the separate parts of my improvement. are designated by suitable reference characters in each of the views, and in which Figure 1 is a longitudinal sectional side view through an apparatus which I employ. for carrying my improved method into effect; Fig. 2 is a similar view but showing the parts in a ditl'erent position; Fig. 3 is a. plan view of a sheet of Babbitt, metal which I employ; Fig. 4 a perspective view of a sleeve lining made from said sheet; Fig. 5 a sectional view of a. modified form of apparatus; and, Fig. (3 a view. similar to Fig. 5 but showing another modification;

In the practice of my invention, as shown in Figs. I to l inclusive, I provide two similar block members a having, in the form of construction shown, oppositely directed sleeve extensions (1 and these block mem hers may be connected and supported in any desired manner but, in practice, said block members are made movable toward and from each other, or one of block members is made movable toward and 'from the other. The block members a with their sleeve extensions a are provided with central axial bores a, and I also provide two similar plunger devices I) having sleeves which closely fit and are movable in the bores a of the block members a, and. said sleeves are provided, in the form of construction shown, with an nular thickened portions If, and the bores a of the. block members a are enlarged at the outer ends of the sleeves a as shown at a to receive the annular enlargements b of the sleeves If. I also provide a mandrel c which passes through and closely fits the bores of the plunger devices I), and the sleeves thereof, and also through the block members a, and the diameter of the mandrel is slightly less than that of the. bores of the block members a and sleeves a thereof so as to form an annular space (Z between said mandrel and said block members and their sleeves. I have also shown at e the shank of a connecting rod made from sheet metal, as shown and described in a prior application for Letters Patent of the United States tiled by me April 28, 1915, Serial No. 24,481 together with the larger head or end 0 thereof, with which inthe use of said rod,the crank or era n k shaft is connected. The larger end or head a of the rod 6 is provided with a tubular bearing consisting, in the form of ccnstruction shown, of a main outer member c and a supplementalinner member 6 both of which are preferably composed of sheet metal and the inner member (2* is provided with end flanges e which overlap the ends of the head 0 of the rod, and the block members a are provided in their adjacent faces with rabbet grooves a to receive said flanges and with supplemental grooves a, to receive corresponding flanges at the ends of my improved anti-friction linings as hereinafter described.

The above named anti-friction lining is shown at f in Fig. 2, and this lining is formed frcm a sheet f of Babbitt or other suitable" metal shown in Fig. 3, which is rolled into a sleeve f shown in Fig. 4, and which is mounted on the mandrel c as shown in Fig. 1.

In the use of the apparatus herein shown and described, the block members a are separated so as to permit of the insertion of the head 0 of the connecting rod between said members and are. afterward brought together so as to bind and securely hold the head (1- therebetu'een, after which the sleeve f is inserted, one of the plunger devices b being moved outwardly far enough to permit of this operation, after which the mandrel c is passed through the plunger devices l) and through the block members a and the sleeve 7''. The sleeve f" is of a predetermined length greater than the distance between the block members a, and when the parts have been assembled in the manner described, or in any other suitable manner, the plunger devices b are moved inwardly into the position shown in Fig. '2, and in this operation the sleeve portions 0 of the plunger devices Z) bear on the ends of the sleeve f and compress said sleeve longitudinally and expand it so as to form the supplemental anti-friction bearing or lining f, as shown in said figure, and in this operation said supplemental anti-friction bearing f is the above described operation may be effected in any preferred manner, or by any desired means, and the plungers b may be operated by hydraulic pressure or by compressed air, or in any other way, and the mandrel 0 may be moved longitudinally and rotated, if desired, and in this operation the supplemental anti-friction lining or sleeve is firmly .compressed and also expanded into firm contact or connection with the'tubulaibearing of the head 0 consist ing, in the form of construction shown, of the parts 0 and a, and by means of the above described operation the anti-friction lining or sleeve f will be given a highly polished interior surface and the compres sion of the material of the sleeve f in forining the anti-friction lining f increases the resistance of said lining to friction and also provides the inner face thereof with a more durable and smoother surface.

In Figs. 1 and 2 of the accompanying drawing, I have shown the apparatus for carrying my improved method or process into effect mounted in a horizontal.position, but in Figs. 5 and t I have shown a modified form of apparatus n'iounted in a vertical positionf The apparatus shown in Fig. 5 involves two block members g connected by bolts g having nuts and adapted to be moved toward and from each other and provided in the inner faces with corresp md=ing grooves 9* adapted to receive a tubular bearing 11. of any kind or class, or designed for use for any purpose, and the top block member 1 is closel y fits the bore 9 and forms an annular 7 shoulder i and said enlargement i is also provided, in the form of construction shown, with an annular groove 1'. The enlarged part i of the mandrel is provided with a reduced neck having an enlarged head i", and in addition to the grooves 5 the block members g are provided at the ends of the grooves with supplemental annular grooves g". In the use of this form of apparatus, the mandrel i is vertically movable and the sleeve f shown in Fig. 2 is mounted on said mandrel, or said sleeve'is passed downwardly through or into the parts g, after which the mandrel is forced downwardly through said parts and through said sleeves, and said sleeve is compressed to form the anti-friction lining f with the flanges f at the ends thereof in substantially the same manner and with the same results, as hereinbefore set out in the description of the operation of the apparatus shown in Figs. 1 and It will be understood that the mandrel 2' may be moved longitudinally in any desired manner, or by any preferred means, and may also be rotated, if desired, and while I have shown the block members g as connected by the bolt members my invention is not limited to this method of connection, and said block members may be connected in any desired manner the only essential feature in this connection being thatthey may be movable toward or from each other, or that one be movable toward and from the other.

The apparatus shown in Fig. 6 is somewhat similar to that shown in Fig. 5 and in volves supplen'iental frame supporting members j detachably connected by bolts 1' and in connection with which are employed top and bottom block members It. The top block member A; is provided with a sleeve [62 which passes upwardly through the frame member j, while the bottom block member 7.: is provided with a sleeve in which passes down 'ardly into the bottom frame member j and a plunger sleeve in is mounted in the bottom block member I; and provided with an annular head m which fits in a corresponding annular groove in the bottom block member. In this form of construction, a mandrel n is employed similar to the mandrel i and provided with an enlarged upper end portion 11? above which is a reduced neck 11, having an enlarged head n". The'body of the mandrel n is of less dimensions than the central bore in of the top block member is, but said mandrel closely fits the plunger sleeve m. In this form of construction, I have also shown the connecting rod 0 with its crank shaft end or head c and its tubular bearing members a and c and between the block members hand sleeve member and the mandrel c, and between the head 6 of the connecting rod when said head is inserted between the block members is and said mandrel, is an annular space 0 in which, in the use of this apparatus, the sleeve 7' is inserted, and when the mandrel n is forced downwardly, said sleeve will be compressed to form the supplemental inner anti-friction lining for the tubular bearing members of the head 6 of the connecting rod. This form of apparatus may be used with the plunger sleeve m stationary in the position shown, or said plunger sleeve m may be uperated in the same manner, as the plunger devices b, shown in Figs. 1 and and when operated in the last named manner the packing sleeve in the space 0 will be eompiesed from both ends to form the anti-friction lining f, but when the n'iandrel u only is operated said sleeve will be compressed only from one end. In either event the result will be the same, said sleeve being pressed to form the anti-friction lining f with its end flanges f, the inner faces of the block members is being grooved, in this form of construction, in the same manner as the inner faces of the blorl; memiac'r' u in Figs. 1 and '3 to receive the end tlangcs a of the outer part (1" of the coupling rod head and the emtflanges f of the anti-triotion sleeve f.

From the foregoing descripticai it will be seen that my improved method consists in the insertion of a sleeve made of anti-iris tion metal into a tubular hearing of any kind or for any purpose, and the compression of said sleeve longitudinally and its )ansion radially so as to form in said bran mg an autifriction sleeve lining in 'vvhi fh operation the said lining is given. a smooth and polished inner surface, and while i have shown and described ditl'erent forms of aparatus for carrying my improved method Into effect. my invention is not limited to the different forms of apparatus herein shown and described. and various changes therein and modifications thereof, may be made, within the scope of the appended claims, without departing from the spirit of my invention or verificin; its fill. vantages. In this case. the sleeve ,1 is pret erably first heated before it is put into the apparatus, to a degree well below the liltilk ing point, in order to facilitate the opera tion of the apparatus, and the. mandrel is also preferably heated in order to prevent the toovquick radiation of heat from the sleeve, and the mandrel may be heated in any of the well known ways, and for this purpose, the mandrel may be made hollow, and a batting coil passed therethrouglh it will he niulcrstood that it not necessary for the anti-friction sleeve or sleeves employed herein to be cut from a sin-ct of material and rolled into shape. and said sleeve or sleeves may he made or produced in any preferred manner. and any suitable means may be provided to prevent said sleeve or sleeves from turning in the tubular hearing or bearings when in use, and for this purpose splines, grooves or keyways may be provided in the tubular bearing or in any connection with the connecting rod, or the connecting rod or the tubular hearing may be tinned before the anti-friction sleeve or sleeves are applied or col'npressed or forced into position.

Having fully described my invention, what I claim as new and desire to secure by lietter lat'cnt, is 1- l The method herein described of providing: a tubular bearing with an anti-friction lining which consists in placing a sleeve of anti-fiiction metal in said bearing, passing a mandrel through said sleeve confining said sl =eve outside the bearing and compressing said sleeve longitiujlinally to form an inner lining for said bearing.

2. The method herein described of providing a tubular bearing with an anti-friction lining whirh consists: in passing a sleeve of anti-friction metal through said bearing, said v leeve being longer than said bearing, and compressing said slecv c longitudinally and expanding it radially in said bearing while confining said sleeve outside the be a ring.

I The method herein described of providini; a tubular bearing with an anti-frietion lining which consists in securing the bearing between soitahle supports having liorcs in a vial line with said bearing, passing a sleeve of greater length than said bearing into said bearing and into said supports and compressing .--aid sleeve longitudinally and expanding it radially to form a lining which closely its said bearing.

-'l. The method herein described of providing a tnbnla r bearing with an anti-frietion lining which consists of mounting said bearing between suitable supports having bores in axial line with said bearing. passing a sleeve of greater length than said bearing ther tlirougrh, passing a mandrel through d sleeve and compressing said sleeve longitudinally and cxpandii it laterally to form a liningfor said bearing.

3. The herein described method of pro- \iding' a tubular bearing with an anti-friction lining which consists of passing a sleeve of antifrictioii metal and longer than said bearing therethrough confining said sleeve outside the bearing and compressing said sleeve longitudinallv and expanding it radially so as to form a lining for said bearin; and having end flanges which overlap the ends thereof.

(P. The method herein described of providing a tubular bearing with an anti-friction ining, which consists in providing a slecw of anti-friction metalheating said sleeve, passing a mandrel through said sleeve, passing said mandrel and said sleeve mid HHHIUN ll LAYMAN

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