US871143A - Surfacing and polishing machine. - Google Patents

Description

J. H. PRUGH.

SURFACING AND POLISHING MACHINE.

ArrLroATlox FILED nu 13.1907.

WITNESSES. VINVENTOR. faewza f' v l MUM,

PATBNTED Nov. 19, 1907.

2 SHEETS-SHEET 1.

No. 871,'143. PATENTED NOV. 19,1190?. 'J. H. PRUGH.

SURFACING AND POLISHING MACHINE, APPLIOATION FILED una. 1907.

2 SHEETS-SHEET 2.

WITNESW l lN/NTOR C. @52 wf UNITED STATES" Yiuirieivr OFFICE.

JoHN H. PRUGH,QF TOLEDO, 01110.,

'SUBFACING AND POLI'SmNGv MACHINE.

Specification of Letters Patent. 'ippiimion sied lay 13.1907. semi il. 37s 307.

Patented Nov. 19', 1907.

To all whom 'it may concern:

Be it known that I, JOHN H. PBUGH, a ci'tizen of the United States, and a resident of Toledo, in the county of Lucas and State of Ohio, .have invented a new and useful Surfacing and Polishing Machine; and I do herey by declare the following to be a full, clear,

and exact description of the invention,V such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to Vthe accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

Myminvention relates to Hoor-surfacing mac es, and is particularly designed for e smoothing of. mosaic, stone and other like floors, but is not restricted to such use.

The objeotofmy invention is the provision of a highly efficient machine of this class, the polishJn mediums of which have the requisite sh g movements imparted thereto by simple and improved mechanism, and

, which have their vertical movements easily controlled by the manipulation of a suitable lever whereby they may be raised or lowered atthe will of the operator, while lat the same time they are permitted to have free vertical movements fto accommodate themselves to the -unevenness of the surface over which they are' operating. y

The operation, construction and arran e- Y described in the followin specification and a preferred embodiment thereof illustrated in the accompanyin drawings, in Which,-

Figure 1 is a si e elevation of the machine embodying my invention, with a portion of the frame broken away. Fig. 2 is an end elevationv thereof with a portion of vthe frame broken away and the motor removed, and

, Figs. 3, 4 and 5 are details of apart of the mechanism controlling the vertical movements of the mediums.

Referring to the drawings, 1 designates a suitable frame which is supported by fore and aft sets of caster-wheels 2,. 2, the journalheads of which are suitably mounted in bearing-bosses 3 carried` bythe f1'ame.` A s rocket-chain 4 connects th sprocket-whee 5, 5 carried by the journal-heads of each set and one head of a'set is projected-above the frame andcarries Aa steei'ing-handleQl by means of j whiclLthe turnin of the wheels is controlled.

The abradinglocks 6, 6, which, when in operation, are intended to rest freely on the 'surface to be polished, may be carborundum, sand-stone or other suitable abrading material and are vcarried by frames 7 7, which have their under surfaces suitably shaped to receive the blocksand are provided with` set- 'screws v8 or othe'rsuitableblock-securing means. v'These blocks'l are-formed on; their upperv surfaces with laterally-spaced` bearingbosses'9 between whichV are journaled the 'bearing-sleeves 10, whichreceive and are adapted to havereci catory movements on the horizontal shaft- 11. A reci rocating shuffling movement is imparted to e blocks 6 by the vertically-disposed arms k12, which work freely through ahning 'de-Sleeves or boxes 13 and 14 and have t eir lower ends provided with saddles 15, which straddle the sleeves 10 and are pivoted to the bosses 9 of the block-frames, as shown..`I The ksleeves 13 are pivotally carriedr by crank-pins or bosses 16 projecting from the sides of thegearwheels 17 which gears are mounted on transverse shafts 18 suitably journaled in the carriage frame 1, and the sleeves'14 are pivot- .uprights 19, which rigidly rise from and overhang one side of the carriage-frame. It will thus be seen that a rotation of the earwheels 17 will cause the lower ends o the arms 1,2 to uniformly swin backwardand forward with the pivots of t e sleeves or boxes 14 as their'fulcrums. The block-frames 7 are -permitted to have universal rocking 4movements to accommodate themselves to any unevenness in thev surface over which they are operating due to their rocking in one direction on the pivots 10 and in the `other direction by reason of said pivots having slight vertical pl'ay in the bearings ofthe saddles 15'. The shaft 11 h as'anA arm 20 projectinr ri 'dly at right angles from each end thereo W 'ch arms combine with the shaft 11 to foi'm a Ulshaped carrying frame for the frames 7 and have their free ends projecting freely through elongated bearing-heads 21, which are fixed to the ends of the rock-shaft 22. -This shaft is suitably journaled beneath the frame 1 in parallelism with the shaft 11, and is rocked by an oscillation of the lever 23, which is fulcrumed to the frame and has its lower. end'connecting with the shaft 22 throughthe medium ef the'link 24 and crank-ami 25, which latter is fixed to the shaft. It is thus apparent that a raising or lowering of the shaft 11 and parts carried thereby may be eifectedby an oscillation of.

. outer fends thereof, thus formingv diagonally` opposed solidportions and diagonally-,op-

posed out away portions which enable the arms to `have free vertical oscillatory movements relative to 4 said bearing-heads, `with the shaft 22 as their axis.' When the `2'0 shaft 22 is rocked in the proper direction to raise the block-frames, the walls of the sockets opposing the cutaway portions thereof engage the arms 20l and cause 'the same to-be oscillated therewith.

A suitablev motor 28 is mounted on the frame 1 and is intended to communicate -power to the pulley 29 through the medium of the belt 30, said pulley being carried by the shaft 31, Which-is journaled in suitable 30l bearings transversely of the frame. VlMounted on the opposite end of this shaft is a spiral gear 32, which meshes with a relatively larger spiral-gear This gear is carried by the shaft 34," which extends-longitudinally of thef'rame, being journaled lin suitable bearings in the standards 19 and also carries the small right and left spiral-gears 35, 35 for meshing with and driving the gears 17 in reverse directions, which gears arel also -of spiral-type. The plug 36, which is velectrically connected to the motor by the cord 37, is intended to be threaded into an elec` tricvlamp socket or otherwise suitably connected to asource of electrical' supply'.` A

A controller 38 regulates. the running of the motor. Carried beneath the frame 1 isa Watertank 39, having the distributing pipe V40 communicating with its bottom. This pipe is secured to and extends longitudinally of the side of the frame contiguous to the pol- `isliers and has the valve-controlled flexible branch tubes 41 leading therefrom and communicating with apertures 42 through the block-frames 7, thus permitting water to be slowly supplied to the tops of theabrading blocks 6 over .the sides of which itflows to assist in t'hepolishingf t v. The operation of my invention is as follows z-The machine being -properly positioned, the abrading- blocks 6, 6 are lowered and permitted to rest freely on the floor by a throwing of thelever 23 to the left, and the electric current is cut into the motor28 by. a5 a proper manipulation ofthe controll'er-leverv `are permitted to have a free rockingv move 38, thus communicating rotation through i the intermediate gearing to tlie cranked gearwheels4 17. As the gears 17 revolve the l sleeves 13 carried thereby worlr'up and down f on the arms ',12of the block-frames and cause 70 the abrading-blocks carried by said frames to have properly timed opposedreciprocatory movements on the surface to be polished.- The blocks 6 rest on .the floor by gravity and ment relative to the shaft 11 or a free vertical.

-inovement with the shaft and arms 12, the' latter moving freely through the sleeves 13' l and 14, thus adaptiiilgr the blocks to .accommodate their positions to the surface over which they operate'. The shaft 11 is also permitted to have a vertical movement'independent of a movementof the bearing-heads 21 in'which its arms 2O are mounted, dueto the shaping ,of said heads in the manner above described, which shapingin suohmanner does not impair the lifting leverage of the heads relative to the/blocks. IVhen the machine is in operation thel valves k43, controlling the water .supply to the abradingblocks, lare opened to permit the Waterto fiow'overthe blocks to assist in the polishing. The opposed movements of the'blocks 6,

.which is occasioned by the reverse driving of the gears 11, causes abalanced action of said blocks so that no tractiv'e 4force is sup- .Y plied-thereby to the machine.v The placing of the polishing means at the side of the ma'- chine and the extending of the sa'me beyond the outer sides of the frames 7, as shown, makes it possible Ato operate close to a wall and in corners, thus doing all by machine which has heretofore been done by hand and" doing-the same much more rapidly and efficiently and with greater/uniformity.. While I have not shown any means for drivin the machine it is apparent that it may be eIther .motor or hand driven, as may be-desired,

both being common in the art.

I wish it undeisto'od YthatI do not desire 1,10 to restrict myself to the'ract details of con-A struction and arrangement` of the parts shown and described, asiobvious, modifications will occur to a person skilled in the art` Having thus described my invention, 115 what I claim asnew and desire to secure by Letters Patent, is,- i

- 1. The combination in a surfacing-inachine, -of a plurality` of abrading-members mounted at oneside of the machine, a member-slidingly carrying the abrading members and adapted' to guide the movements thereof, and mechanism for imparting v,opposed unitary movements tothe members. t i i 2.7' The combination infa *surfacing-maf 12 chine, of a plurality ofgravity abradingmembers mounted at one side of the machine, said members being free to have rocking or vertical movements, an elementguiding the reciprocatory vmovements of the abrading Y members, and mechanism for imparting opposed simultaneous reciprocating' movements to the members.

'3. In a surfacing-machine, an abrading member, an arm vertically rising from and having pivotal connection with said membermeans forming a fulcrum for the upper endY of said arm, a horizontal element guidingl the movements of said members, and mechanism cooperating with the arm' to impart aswlnging movement to the arm and a reciprocating movement to the. abradingmember. Y

4. In a surfacing-machine,I a' verticallydisposed arm 'mounted for sa inging and f ree vertical movements, ,'an abrading-Inember carried at the lower end of said arm, a guiderod* carrying the abrading-member to permit it to have slidingand universal movements relative thereto, and mechanism for imparting a swinging'movement to the arm rto effect a vreciprocation of thefabradingmember.

5. In a surfacing-machine, an abrading-A member, an arm vertically rising from said member, .fulcrum means for the upper end ofthe arm, a revoluble element slidingly embracing the arm intermediate its ends, and .mechanism for revolving said element. l

6. In l.a surfacing-machine, va gravity abrading-member, an arml rising therefrom, fulcrum.means forv the upper end of theiarm, a revoluble element slidingly coacting with the arm below its fulcrum, and mechanism for revolving said element for imparting a ber.

' r 7. In a surfacing-machine, an abradingmember, a pivotal fulcrum member and a pivotal revolving member `mounted above the .abrading-membe'r, an arm pivotally rising from the abrading-member land slidingly coacting with both t efnlcrum andv revo ing members, and mechanism for revolvinfg the latterof said members to impart a shu flingV movement to the abrading-member.

8.' The combination lina snrfacing-ma-f chine, ofasetof ab 'member s, an arm pivotally from eac of said ,members .and mounted or swinging l and free vertical movements .a guide-'rod slidingly carrying said members, and mechanism coperati with the arms toimpartsimultaneous' sh fling movements Ito the' abrf ling-members.v

',9: In a surfacing-machin `a'set of abra`ding-members, an arm J' from each of said members, guidingvmeans for theabrad-v l ing members, fulcrum means for the up er fes end of each arm, a revolving element', si ingly coacting.`with each arm below its fulcrum, and mechanism for revolving. said .elements to impartshuiling'; movements to ythe abrading-members.

10. In asurfac" -machinea set of'abrading-members `workingl in tandem, an arm pivotally rising from each of said members and mounted for swinging and free Avertical movements, and mechanism cooperating y with the arms to impartopposed'simultaneous s'huling movements tothe abradingmembers.

-1 1. In a surfacing-machine, a set of abrading-members, an arm pivotally rising from each of said members `and mounted for swinging and vertical movements, a revolving element sliding-ly coacting with each arm, and mechanism forv reversely driving said elements to impart opposed shuiiling movements to 'the abrading-members.

" 12. In a` surfacing-machine, a pair of abrading-members, a pivotal fulcrummember and a pivotal revolving member associated with each abrading-member, an arm pivotally projectin from each abradingmember and sliding y coacting with the associated fulcum and revolving members, and mechanism-for imparting movements to the revolving members to communicate opposed shuflling movements to the abradingmembers.

13. In a surface machine, the combination -with the shufiling abrading-member, and the holder therefor, of a Water-supply, and a flexible tube having one end connected toY the water supply and its other end attached to the holder whereby to follow the movement of said member and supply water to its top. s f

-14.In a surfacing-machine, an abradingmember, an, arm pivotally risin therefrom and mounted for swinging and vee vertical movements, mechanism cooperating with the arm to impart a shufliing movement to the admg-member, and means for raising or lowering the abrading-member.

15. In a surfacing-machine', a verticall oscillatory frame,y an abrading-member slid ingly carried bythe frame, an arm pivotally projecting from the abrading-member and mounted for, swinging and free longitudinal movements, mechanism cooperating with the arm to impart a shufiling movement to said member, ardi'neans for oscillating the frame to raise and lower the abrading-member. 16. In a'surfacing-machine, a horizontal shaft, arms rigidlyprojecting from said shaft,

ashuffling movement to said memmovementsto said members, and means for oscillating the frame to raiseand lower said l tion with the surfacing agent, of a U'shesped frame carrying said. agenta roek-shsetft, and'20 members.

18.l In a surfacing-mamme, a horizontal shaft 'arms rigidlyprojeeting from seid shaft,

-a rock-shaft having connection with said arms a .plurality of abradingmembers movable on said horizontal fshar`t,` mechanism for imparting a shuffling movement to said members, and means-for rocking therock-shaft to raise or'lower said.v horizontal shaft.

19. In a .surfacing-machine, the combination 'With-an abrading-mem-ber, of .a framey Carrying'saidmember, a rook-shaftA haing connectlon with the frame adapted topermit va free oscillation of theframe relative to the rock-shaft and to rook the frame when 'the y shaft isroeked.

20. In a surfacing-machine; the eom Dinabearingv-memhers carried y eaidshaft and 1' loosely receiving the arms' of the frame, seid membersl each having da onally op osd solid portionsand 4diagonalgly oppose ,Cu'ty away portionsA to'permit a freeoscillatory 25 movement ofthe arms'threinand also to effeet a positive oscillationl of the frame to'raise' or lowferlthe Surfaoingagent's g In .testimony whereof I halve hereunto signed myna'me to this sIpeciication in the 30 .presence-of two subscribing Witnesses;

JOHN PRUGH l Witnesses:

' HAZELl B.H1ETT, C, W. OWEN.

Images