US1115640A - Grinding or polishing machine. - Google Patents

Description

H. W. WINTER.

GRINDING on rousnme MACHINE.

APYLIGA'I'IOH FILED MAY 3, 1909.

Patented Nov. 3, 1914.

2' SHEETS-SHEET 1.

H. W. WINTER. GRINDING 0R POLISHING MACHINE.

APPLICATION FILED MAY 3,1905),

Patented Nov. 3, 1914.

2 SHEBTS-SHEET 2.

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UNITED STATES PATENT oFrIoE.

HENRY W. WINTER, OF METHUEN, IILASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

7}, all whom. it may concern Be it known that I. HENRY W. \VIN'risn, citizen of the United States, residing at Methuen. in the county of Essex and State of hlassachusetts, have invented certain Im provements in Grinding or Polishing Machines, of which the following description. in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines in which an operating member or members are mounted upon a shaft and has particular reference to means whereby said member or members may be readily replaced. This class includes a great variety of machines of which those used for grinding and polishing will serve as examples.

The invention is illustrated in connection with a finishing machine comonly known as a finishing shaft used in the manufac ture of' boots and shoes. It is common to mount upon the shaft of these machines a variety of abrading and polishing devices which may be used as desired. For convenience, however, the invention will be described in connection with a finishing ma chine which is provided with polishing devices only.

These machines ordinarily comprise a base which carries a plurality of hearings in which a comparatively long shaft rotates. Fixed upon this shaft are a plurality of polishing devices, the nature of which varies Commonly the shoes are subjected to the action of three classes of operating members, first to the action of a felt covered member known as a blending roll. the function of which is to work the dressing into the leather, sec nd to the action of a polishing brush and third to the action of a polishing roll. the acting! portion of which is composed of some soft material. as for instance yarn. and the func tion of which is to impart to the shoe its linal luster. it frequently becomes neces sary because of wear or for some other reason to replace one of these operating members. Hitherto it has been common prac ti e partially to dismantle the machine in.

order to permit the worn member to he slipped off the end of the shaft: and if said 1 tion which compels rotation in, unison when l properlv confined but permlts transverse 110 member happened to be mounted near the longitudinal center of the shaft it b ame Specification of Letters Patent.

Application filed May 3, 1909.

GRINDING 0R- POLISHING MACHIISTE.

Patented Nov. 3, 1914.

Serial No. 493,667.

necessary to remove all the operating members between the. worn one and the end of the shaft. The disadvantages of this procedure are. obvious, and considerable effort has been spent in'an endeavor to produce a polishing member provided with a split hub. so that said member might be placed on the shaft or removed therefrom without disturbing the remaining members or the shaft. Certain difficulties have however, arisen particularly with respect to the brushes. It has been found that the bristles of a split brush tend to become compact at that point in the working surface where the two sections of the brush come together and to wear away at each side of said point, a result which is obviously most 'undesirable.

One object of this invention, therefore. relates to a sectional shaft having provision whereby an operating member may be 7 placed-thereon or removed therefrom, at a point intermediate its ends. Or, since the sections may be considered if desired as separate shafts, this object may be said to be attained by providing a. plurality of alined shafts separably connected. Any convenient means for accomplishing this may be employed, and in the illustrated. embodiments of the invention two forms are shown, one

in which the sections (or the alined shafts i' are held together by a pin and another-inc which the joint between the sections (or alined shafts) is incased in a member which serves to hold sai sections (or shafts) in line with each other. while separate means are provided for preventing relative longitudinal movement.

For convenience the sectionswill e re,- fcrred to in the remaining part of the description as forming together one se tional shaft. but it should he understood that this is done merely to promote brevity.

in order that the placing of an operating member upon the shaft and its removal therefrom may be facilitated it is desirable that the adjacent ends of the sections of the shaft e capable of transverse movement with respect to each other: and a further object of this invention relates tothe provi- 'sion of means whcrclrv such a movement i pcrmittel. This mayconveniently be accomplislml by providing the adjacent. ends of the sections with a sliding connecmovement when the confining member is partially or wholly removed. In the illus trated embodiment this result is accomplished by so mounting the bearings that they are capable of angular movement, it

then being possible after freeing the joint.

from its confining member, to swing one or both sections of the'shaft angularly and 1 thereby break said shaft at a point intermediate its ends. i

It is often desirable to cover a machine of this class with a hood particularly when there has been mounted upon the shaft an abrasive member the operation of which produces dust. Inasmuch as the. hood may interfere with any extended angular movement of the sections of the shaft in one -direction it is desirable that means may be provided whereby the ends of the sections of the shaft may be swung free from the hood; and another object of this invention relates to the provision of such means. In

the illustrated embodiment this is accom-v plished by mounting the hearings in such a manner that they are capable of angular movement two directions. WVith' this construction and arrangement the sections of the shaft may be moved angularly in one direction to separate their ends and then said ends may be swung out from beneath the hood into a position in which the greater part of said sections are readily accessible.

Another object of this invention relates to means for reciprocating the shaft while it isbeing rotated, since it has been found that this combined movement tends to proing relative longitudinal movement between the sections of the shaft and of reciprocatlng said sections in unison.

Another object of this invention relates to'automatlc means for lubricating the bearlugs.

These and other features of the invention including certain details of. construction and combinations of parts will be explained in connection with the following description of a machine and will be pointed out more definitely in the claims.

Referring now to the accompanying drawings.Figiu'-e 1 is an elevation of a finishing machine embodying one form of this invention, a portion of one standard being broken away; Fig. 2 is a perspective partly in section of the hearing which confines the ends of thesections of the shaft, the cap of said bearing having been removed; Fig. 3 is an elevation of a finishing machine embodying a second form of this invention;

and Fi g. 4 is a perspective showing the abutting ends of the sections of the shaft with the pin removed.

Referring first to Figs. 1 and 2 a base 1 carries a plurality of standards 3 having bores 5. In these bores are mounted pins 7 which are held in adjusted position by screw bolts 9, Pivoted to each pin 7 by means of a screw 11 is a yoke 13 through the ends of the arms of which screws .15 pass, the forward ends of said screws engaging sockets 17 in the bearing boxes 19. With the construction thus far set forth it is evident that the bearing boxes may be adjusted into horizontal alinement andlheld in position by means of the screw bolts 9, while angular movement in two directions is at the same time possible. Inorder to limit the abutting ends of the sections 37 39fof the shaft against t ansverse movement it is desirable to provide a confining member,

"and in the illustrated embodiment said member is shown as a bearing box in every way like the end boxes with the exception that it is split longitudinally and the cap 21 is held in place by eyebolts 23 and nuts 25,

saidbolts being pivoted to brackets 27 by means of pins 29. After the nuts have been loosened. the bolts can be swung aside and the cap removed for a purpose presently to be described. In order to insure proper lubrication of the bearings each box is provided with a reservoir covered by a steel plate 33 upon which rests the usual lining of 'babbitt 35. Through the plate and babbitt,

its upper end flush with the surface of said babbitt, extends a wooden plug 36 the function of which is to conveyoil from the reservoir to the rotating shaft. Mounted in the bearings described above are the sections 37, 39 of a rotary shaft, and in order to cause the sections to rotate in unison said sections are provided with interengaging ends which are formed in the illustrated embodiment as a tongue and groove connection. In order to the sections are reciprocated in unison. Ale

though in the illustrated embodiment these. collars which hold the shaft in place are modified so as to produce reciprocation it should be understood that an entirely independent means may be provided if desired. It has been found that the polishing roll which is used to add the final luster produces better results if rotated at less speed than are the brushes and other rolls. Accordingly the polishing roll 51 is shown as fast to a pulley 53 which is rotatable on the section 37 of theshaft and is held from longitudinal movement by collars and 57, a belt 59 being provided to transmit power to said pulley and roll. Fast to the other section of the shaft'thereis shown a brush (31. It should be noticed. however, that the sections of the shaft are broken in several places and it should be understood that operating members of various kinds may be mounted upon said sections both between the end bearingsand outside of them. It should also be understood that the number of sections or of se mrably connected shafts is not limited and that any convenient number may be used if desired. in order to rotate the shaft there is mounted upon one of the sections a fast pulley 63 having a tubular extension 65 upon which latter is mount ed a loose pulley 67, said loose pulley being held in place by a collar on fastened to the extension and shaft by a pin 71. This loose pulley has driven tightly into its bore a bushing 73 having an annular groove which cooperates with the wall of said bore to form a reservoir 75 for lubricant. a plurality of wooden plugs 77 similar to the plugs 36 being driven through holes in the bushing and extending into the reservoir. In operation power is applied to the pill by 63 and the shaft thereby rotated. Slllllll' aneous reciprocation being produced by the action of the collars 11 and the fingers 43. When it is desired to remove from the shaft one of the operating ineml'iers the belt is thrown off the cap 21 is removed and the abutting ends of the sections lifted thereby causing them to separate. If the machine is fitted with a hood the ends of the sections; may then be swung outward about the pivot screws 11. The desired changes may now be made in the operating members after which the angular n'iovenients of the shaft may be reversed. the cap replaced and power applied.

Referring to. Figs. 3 and 4 there is shown another embodiment of the invention. The base, the standards and the yokcs are identical with those shown in Figs. 1 and 2 except that the pins 71 are integral with the yoltes 131. Neither the boxes 191 uorthe loose pulley 691 are providedwith oil reservoi s but otherwise they are similar to the corresponding eleniieuts shown in Figs. 1 and 2. The collars 411 are fastened to the shaft by means of screws 79 but are not provided with grooves since in. this form the shaft i not reciprocated. The sections 371 and 391 are connected by means of the joint shown in Fig. 4. A stud 81 at the end f the section 371 fits into a socket formed in the end of the other section 391. and a tongue is driven through alining holes 91 in the walls of the groove and in the tongue respectively. There is shown mounted upon the sections of this shaft a brush 611 and a blending roll 93 but it should be understood that these shafts are of comparatively great length and that a plurality of operating devices are commonly mounted upon each section. With the machine shown in Figs. 3 and 4 separation of the sections is effected by driving out the pin and pulling the sections apart.

As has been stated. in order to insure clearness and to avoid prolixity the shaft has been referred to as a sectional one, but it is clear that the sections thereof mayv be considered with equal accuracy as a plurality of separably connected shafts. And although the invention has been shown and described in connection with a finishing ma-- chine it should be understod that nothing.

herein contained is to be construed as limiting the in ention in the scope of its appli cation to the particular machine shown and described.

The invention having been thus described, what is claimed and desired to be secured by Letters Patent is:

1. A grinding or polishing machine having, in combination. a plurality of alincd shafts having abutting ends which are scparablv connected. a 'ilurality of vertically adjustable bearings for said shafts. an operat ing member mounted upon one of said shafts between said abutting ends and one of the adjustable bearings. means whereby said bearings may be moved ai'igularly in two directions to separate the ends of said shafts. and m ans for rotating one of said shafts.

2. A grinding or polishing machine having in combination. a plurality of separal'ily connected alined shafts. an operating member fast to one shaft. :1 second operating member loom upon the other shaft. means for rotating one of said shafts and independent means for rotating said loosely mounted operating member.

A grinding or polishing machine having. in combination. two alined shafts separably connected. a bearing for each of said shafts. said bearings being angularly mov able. to permit separation of the adjacent ends of said shafts. an intermediate bearing to receive the connected ends of said shafts. and an operating member mounted upon one of said shafts between the bearing for said shaft and the intermediate bearing.

4. A grinding or polishing machine having. in combination. two alined shafts having a tongue and groove connection. a bean ing for each shaft a ngularly movable to permit separation of the ends of said shafts. a split bearing to receive the connected ends of said shafts. said split bearing comprising a readily removable cap, and an operating member mounted upon one of said shafts mounted upon sa-d shaft bet ween one oi the between the split bearing and the bearing for the shaft.

5. A grinding or polishing machine having, in combination, a sectional shaft, the abutting ends of the sections being provided with a tongue and groove connection to compel them to rotate in unison, means for retating said sections, and separate means acting upon each section constructed and arranged to cause said sections to be reciprocated in unison.

6. A grinding or polishing machine having, in combination, a plurality of bearings,

a sectional shaft mounted therein and haw mg abutting ends, and an operating member bearings and the abutting ends of the sections, one of said bearings being angnlarly movable to permi separation of the abutting ends of said .-e iions for removal and replacement of said operating member.

In testimony whereof .l have signed my name to this specification in the presence of two subscribing witnesses.

HENRY V. \VlNTElt.

Witnesses CHESTER E. Rooms, LEONARD M. Jomssox.

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