US107435A - Improvement in machines for dressing tiles - Google Patents

Description

N,FETERS. PHOTO-LITHOGRAPHER. WASHINGTON D. CA

ilitteil States t ate-'1d Gemine,

'To all whom it may concern:

transverse bars B cn posts @for other sui-table sup- Aposite edges of the tile to be dressed, so that thelowcr GEORGE BARNEY, orzsWANroNQvERMoNn'AND VALENTINE e. BARNEY, y

or MINNEAroLI Letters Patent No, 107,435,

s, MINNESOTA.

lated- September 20, 1870.

IMPROVEMENT IN MACHINES PoR DRESSING TILES.

The Schedule referreiil to in these Letters Patent and making pari: of the same.

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- Be it known that we, GEORGE BARNEY, of Swanton, in the county Vof Franklin and the State of Vermont, and VALENTINE G. BARNEY, of Minneapolis, in the county of Hennepin and the State of Minne Sota, have invented a .newand improved Machine for Dressing'Tile; and we do hereby declare that the following is afull, clear, and exact description thereof, which will enable others skilled in'the art to make and use the same, reference being had to the accompanying drawing forming part of this specification.

This invention relates to improvements in machines for squaring and facing iloor-tile, and consists in an arrangement of a squaring-ii'ame above a horizontal revolving dressing disk, and certain peculiar attachments thereto for holding the tilel to be squared and dressed on the edges; also, an improved arrangement of apparatus for holding the tile upon the desk for facing, and alsoimprovementsin sand and water-feeding apparatus, all as hereinafter described.

Figure 1 represents a front elevation of our improved machine;

Figure 2- represents a sectional elevation, perpendicular to the plane ot' Iig. l; and

Figure 3 represents a top view of the same. A represents a horizontal rotating dressingdisk such as iscommonly used. Over this we arrange the ports. .The vertical axle D ofrthe disk A is supported on these bars. They also support Ways E, on which we arrange the vertical frame F^,which holds the tile to slide back and forth across theupperface of the disk, the said frame being moved by a toothed rack, G', on one of the Ways E, and a pinion, H, and handcrank mounted on the frame F.

I is another vertical frame, which is mounted in supports attached to frame F, so as to have liberty to move upland down thereon'. It is connected byalink, K, toa crank, L, attached to a shaft, M, supported ina cross-bar, N, of frame F, and attached to aline, 0, carrying an adjustable weight, P, at one end, and at the other a pendent handle, Q, for moving it to turn the shaft M, and raise or lower the frame I.

lhe frame F carries, at the bottom, and on one side, a clamping-bar, S, and opposite to ita movable clamp, attached to a. sliding-bar, T, for clamping the tivo opedge will rest on the disk A. This bar S is pivoted at S1 and jointed at S2 to a bar, S, made adj ustahle back and forth bya screw, S4, for adjusting the bar S perpendicular with the, disk A, so that thetileclamped against bar S will be squared.

The frame I carries a trussing-block, U, attached adj ustably to the diagonal bar V on said'frame, and

intended to apply more or less of the Weight ot' theframe I to the stone.

The frame l is raised vby pulling'the liueO down at the end having thehandleQ, for applying the stone,

.together with the weight P, which yis adjust-able, to

regulate the pressure. This frame I isto be provided with a. screw, or other adjustable stop, to arrest it when the stone is ground oit' to the reqnisitesize.

The stone being clamped edgewise, as shown iu dotted lines in lig. l, is moved back and forth over the.

disk, by thecrank, pinion, and rack, before described, while the disk rotates under it and turns od' the edge perpendicular to the vert-ical barfS.4

The clamp on the end of the bar T is composed of the angle-platea b, the plate (l, hook-shaped spring e, and roller j; lThe roller is placed in front of the plate u, to' be pressed against the edge of the stone, to rollV up or down, to allow the stone to be tilted, when the edge against the vertical'bar S is brought up parallel with it. The springe is employed to hold the roller, and the plate d is used to hold the roller and spring against the plate b,.to prevent them from becoming displaced.

The bar T is' moved by a springing hand-lever, NV, which works over a ratchet-bar, X, and engages therewith, to clamp the stone. This bar is made in two parts, and jointed, so as to be extended or contracted for stones of different sizes. l

The presser-blok U is provided with small frictionrollers, q, in a -recess iu the lowercnd, and with'a yoke, h, passing under the rollers, holding them in the recess. This yoke is suspended from a bolt, i, in such a way that it may move a shorty distance, laterally thrown, and is provided with springs k, which, when not' is contact with the tile, holdit so' that the vertical-bars are at 'about equal distances from the block. Z represents-springs piacedontwo sides of the block, between it and the springs k, Icalculated to bring the rollers back to :the center when 'moved either' way' therefrom. This block is attached to the diagonal bar V by a bolt, in, and thumb-uut, so as to be adjusted along the bar from place to place, for stones of diercnt sizes, and it is employed torrppiy the 'weight'ot the frame I, or a part thereof, to the top of the stone.

The function ofthe. yoke and the rollers is to move with the stone 'whereo'u y the yoke rests, when the edge is brought up against the vertical bar S bythe clamp at 't'heopposite side, to admit of theready adjustment of the stone.

The springsl.: throw the yoke back again-afterward,

and the springs Z", restore the rollers to the required position; p

For holding the face of the tile on the disk for dressing it, we employ the holding-disk n., having a vertieal spindle,` 1, mounted in the arm 4q, projecting from the lower beam B, and supportedhy a brace, fr, or other suitable means.' This disk-is provided with the two clamping-bars s, clamping-bar or hand-lever t, and ratchet-bar fw, for taking hold of' the tile. 4

In order to adjust the clamping-bars s" for stones oFdifTe-reut sizes, they are provided with anumber of holes, and are connected to the lever r by pins w" thereon rising np to a spring, y, which is ,a continua-v tion of thc hand-lever t, and is arranged to hold the bars's" on the pins, and to be readily raised up for :onnecting and disconnecting them in shifting for liferent sizes.

lhe spindle p is provided with another supportfz, 'above the arm q, and revolues 'in its supports lby the action of the disk on the stone, which, being thus rotated, while subjected to the action of the disk, has a much smoother and more true and uniform surface imparted to it than whenthe polishing or dressingdisk moves on the stone in the same course through- Wout the operation, as is now :the common practice.

A represents the sand-feedingtrough, suspended from the side ofthe frame B C. It hasa bottom, B', hinged bya leather, or other continuous hinge at C',

to the Yrear side Df, .which is lower than the front E. l fi This bott'm, which, therefore, descends toward the rear, is attached so as to be supported higher or lower at the front, to make t-be descent more or less.

. One end of the trough is also higherthan the other, and at the high end the bottom isprovided with a small trough, l1,for conveyingwatei"upon the bottom at the high end.

The'bottom, which-projects slightly beyond the end of the trough at thel lower vend, has a cross-bar, G',

shown dotted, to turn they water s o as to discharge upon the disk A, near the shaft D. This trough is loaded with sand on the bottom, and against the side D', leaving a marginof the bottom alonglth'ev front edge uncovered, so that the water, entering at the spout l, will tiow along the edge ofthe bank of sand, and carry` therefrom a small 'regular stream of sand onto the disk, the said regularity being due to the ob` lique bottom, which keeps the stream ot' wateragainst the edge ot the bank of sand.

Having thus described our invention,

Vters Patent- 1. The combination, with the rotary grinding-disk A, of the horizontally-moving frame F and the vertically movingl trame I, the flames F and I `being arranged for holding the tile to be acted upon by-the disk, all substantially as speciiied.

2. The combination, with the frame I, ofthe shaft M, crank L, link K, and weighted lever O, when arranged for moving thelf'rame I vertically, substantially as specified.

3. The combination, with the vertical holder S, on the frame I, of a clamping-bar, T, and clamping-head, and a presser, when the clamping-head and presser are provided with friction-rollers, to admit ot` the ad. justment of the stone. when being. clamped' np to the vertical support S, substantially las specified.

4. rlhe arrangement ofthe bar S, for adjustment at its upper end, relatively withthe bed A,4 substantially in the manner described.

5. The arrangement ot' the presser U, for adjustment on the diagonal bar V, substantially as specified. v

,6. -The combination, witli the angle-plate a b, ot' the roller f and spring e, substantially as specified.

7 The combination,l with the bar T, made adjustable as to length, and witlrthe' angle-plate a 12-ot'tbe rollerf, spring e, and plate d, substantially as specied. v

8. The combination, with the block'U, of the. rollers y, substantially as specified.

9. The combination, with the rollers g and block U, ot the yoke h, springs L and I, all substantially as specified. l Y A 10. The combination,\vith the disk A, of the disk 1i, spindle p, clamping-bars s, spring handle t, and ratchet-bar fa, substantially as specified. p

11.1Tbe adjustable connection of the clainlJing-bars s" withthe lever t' by means ot' thepins '10, and the spring y, substantially as specified. I

12. The feeding-trough A', having the adjustable oblique hinged bottom and water-trough, all arranged for operation, substantially as specified.l

GEORGE BARNEY. `Witnesses:` VALENTINE G. BARNEY.

WM. L. SowLns, E. M. SoWLEs, H; O. HAMLIX, 4H. A. GALE.

XVe claim as new and desire to secure by ,Let-` Y

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