US907058A - Floor-dressing machine. - Google Patents

Description

A. KRAEMER L A. CHILD.

FLOOR DRESSING MACHINE.

APPLIUATTON FILED JUNE 20,1905. 907,058. 'Patented Dec. 15, 1908.

3 SHEETS-SHEET l.

gam/OMM, wm.,

A. KRABMER 651A. CHILD. FLOOR DRESSING MACHINE.

APPLICATION PILED JUNE 20,1005, I

Patented Deo. 1b, 1908.

3 SHEETS SHEET 24 A. KRAEMER & A. CHILD.

FLOOR DRESSING MACHINE. APPLIGATIONWILED JUNE zo, 1905.

Patented Dec. 15, 1908.

3 SHEETSMSHEBT E" y? L @i W44/ forward extremity is threaded and engages.

sleeve 24 casing through on ero ed to u 20. he part form and secured thereto is e blower or suo tion fen 7 to which leeds an inlet conduit 8 ond with which is also connected an outlet conduit 9. Upon what we will term the forwerd extremity of this lotform, is mounted on upright frame 10 a transverse ieee lzlthefa top. dl'lo this trensirng cree pretce 1s 'attac s orwr yprojeo segmen s plate 13, foraging the support for the swing.'- mg freine id composed of upper end lower bore and 16, connected by upright ports 17 and 1B.

The rear extremities ofthe bars l5 and 16 per and lower ports 19 and 9 consists of en erm whose s screw l21 jou'rnoled in 22 and 23 Ynao'unted on the transverse part 12 of the portable platform. The forward extremity of the arm '19 is provided with e depen togenmg 2 formed in e rear extremity of e erm 15,

Vwhereby the seid erm is mounted to` swing on .the sleeve. In this sleeve is joornaled the u per part of e vertically die osed shoft 26. 'llle port. 20 consists of a spin le ourncled in e bearing 27 mounted on the forward extrcmitty of the platform 5. This spindle is provi ed with en upwardly project-.i 28 in which thc lower extnamity of t e shaft 26 fits und is journeled.- The sleeve 28 posees through an opning 2,9 formed in the reen extremity of t :erm 16 whereby the said arm is allowed to swing freely on thel sleeve.

By virtue of the connection of the enne l5 and 16 with the sleeves 24 and g8 of the th parts 19 and 20, it is evident-that the freine 14 may be swung at will around the exis of the shaft 2G ss e center. If it is desired to tilt this-frame 14 or cause it to occupy e pleno inclined' to the vertical, it is only neo cesary to turn the screw 2l. by inserting a pin (not shown) inthe spertured extremity of the screw in the ordinary manner. This willcause the arm 19 to move in the one.

direction or the other on the part 12 and as the sleeve 24 entere the erin 15 of the frame 1.4, this lateral movement will tilt the frame 14 from the vertical position the one direction o the other, since the indie 29 is free to turn in its bearing 27 on t le platform. The o woning in the sleeve 24 is sli htly en larger interior-ly et its up' er and ower cxtromities, to prevent the s aft 26 from hind intherein.

tho fol-werd extremities of the arms 15 end 16, is jourmrled a hollow shalt 3U in the top of which is inserted a short sleeve 3l aoi cured to the elicit hy n set screw 32. This sleeve s providedwith n. horizontal flange 33 at the top under which projectel e roller 34 mounted on the free extremity of s leaf sprin 35 secured to the bur l5 by e stud bolt 36. his spgingeupported rel er gives e sleeve comes 'rms prei ting outwardly and downwardly and me at the bottom into s. bearing 39 located reetly beneath the center of the u 4n which are oosely mounted two rol-1ers 4 which perform the ebrading, smoothing or floor dressing function when the machine is in use. These rollers are preferably provided -mth a covermgof eend pa or o-r a similar smoothing or ebredin sur ace whereby they Vere adapted to pe orm the function heretofore stated These sand e er sheeths which we prefer to rovi e e rollers, are attscheble und detec able in o manner hereinafter more fully described.

The two rollers 41 are located on opilosite sides of the center of the axle 40 .end e inner extremity of oooh is provided with a beveled geen@ the seid. gears being fast on their respective rollers end meshing with an interposed beveled gear 43' engaging the two Q ears 42 et the top. This gear 43 is fest on he lower extremity of o shaft 44 phasing through the hollow shaft 30 and journal'edin the sleeves at the extremities of the hollow shaft. The up er extremity oi the shaft 44, is provided w1 e hand ieee 45, in which the shaft fits loosely so piece istheld in the hand the shaft may rotate tree its upper extremity being swivelcd in e isndlo es indicated in Fig. e. The hollow shaft 30 is provided 'extcriorly with n grooved collar 46 which is engaged h e. pin 47 carried by n. bifurceted lever 48 fu cmrned on the ber 18 et 49, its outerextrexnity bein rovided with a., handle 50. B y means o t lislever which is preferably provided with two pine-i7 entering the circumferentiel groove of the collnrll, the hollow the spring-su ported roller 34 raises the ho lor shaft and consequently the obrodingi rollers from thel surface.

n order to limit the downward movement of the hollow shalt, the latter is provided junt above the ann 16 with a stop coller 51 ed justeblyconnected with the hollow shalt by a set screw 52. i l

The ebmding rollers 41 and their operating eers, are inelosed except etV thebottom by a ouci 53 which is connected withthe sleeve 37 of t e hollow shaft in any suitable manner asby e ring 54 surroundnhthe sleeve end. spider orme 55 connectin le ring-with on upwardly meeting circo ar part 58 of the housing. ring 54 may be connected sleeve and throulgh which passes en axle 40 at while the seid rassure on the lover 40 is redii with the sleeve 37 floymenns of a. set screwri 57 housin `are nornmllyelosed by sliding gutes 58. en the device is in use the housing 53 rotates with the hollow sleeve 30, and its circularpart 58 protrudes into u stationary. housing port 59 connected with the forward extremity of the arm 16 by means of screws 38. The protruding housing port 5S engages e packing rin? or washer 6() carried by the lower part o the stationary housing 59, whereby e dust-tight joint is formed between the stetimmry and rotary housing members.

In order to protect the gears 42 und@ from the dust, a, gear case l is located within the housing 53, its upper part fitting closely around the sleeve 37 of the hollow shaft, while its lower part engages oireurnv ferential grooves 62 formed in the gears 42, whereby the geur case moves with the ubraeling rollers in their orbital travel hut is relatively stationary so for es their rotary or axial travel is concerned.

With the stationary housing member 59, is connected en outlet tube 63 Awhose inner extremity surrounds an opening 64 formed in the housing 5). To the outer extremity of the outlet 63, is connected the suction conduit 8 leading to thegblower 7 es heretofore ex lained.

o the to' of the shaft 44, is made fest e pulley 66 W ich is connected by e cross belt 66 with a pulley (i7 fast on the upper extremityo the shaft 26. stop oollar 5] on the hollow shaft, is ruedo fest a relatively lasse ullct` t?? connected br l e belt 59 with e smaller pulley ljfast or; u eountershallt 7l which is olso provided with s relatively large pulley 72 connected by eA belt 7.3.with u smaller Julley 74 fest on the shaft 26. Also fest on lhis shaft 2G is o. pulley '75 connected by menus of u bolt 76 with e' pulley 77 fast on the motor shaft T8. This motor shaft is ulso providwl with u pulley 79 connected by moons of a belt 8U with u pulley 81 first on the blower shaft S12.

Fronij the foregoing description it will be understood, that as the motor shalt 7S is ron tated, power will be transmitted to the blowershaft 82 and to the shaft 26. Freni this shaft 26, motion will be transmitted through the belts 73.end 69 end the pulleys 74, 72, and 68, to the hollow shaft 30. From this shaft 26 rotary motion will also be transmitted throughthe instrumentality of the cross belt 66 und the pulleys 67 and 65, to the shaft 44, whose movement will be in a direction the reverse of the hollow shaft 30 through which it posses. Hence it will be understood that the rotary action of the shaft 44 carrying the gear 43, will impart ro temes tation to the two obi-udine; rollers 4 1. in rol verse din ions by virtue of the goers e2 carried h,k `he rollers and menging the geur 43 nt aliafwetrieally opposite pointe. ,it will also be unilenitood that the the hollow shaft 30, will so rt rotary movement to the axle 40 nis; mi. its ons?. este, but around the arisfof the hollow shaft, und in the plane. of the axis of the eide, thus ing sn orbital travel to the etmrling ro simultaneously with their rot 'L in s. direction opposite to tin otsry notion, thus increasing, the ffriartion r .el-produit; en. tion of the. rollers upon the surfsuse. to be dressed.

` The rollers 4l uro lilollew und their cylindrical Walls A as shown in the drewing ure composed of hin metal and in their extremities are inserted heads B. zillu. eylindrioul roller parts are preferably covemd with cerpeting material l) or some other suitable libroue yielding materiel, the sunto being referobly permanently attached to the oylindrioal shells of the rollers. A suitable covering l.) of sbmding materiel as simil paper ma f be applied to @sich roller in order' i so tion :fz-.inl

to give tie desired nbrudini; or, :unonthing sry eolien o? fi Wien by sumti/ier :nljrsstmwill of the seo Just above tlief tional port olf the shell sheath muy bc lomenoil u' .slip oil'. This feelin:- v or the drawing; in 'w i hinged portion or segment f cli oi the roller. This portion is hinged lo e lug AZ attached to the holly of the shell. The hinge pin is designated AJ.

To the extremity of thc shell-segment A" remote from the hinge, is winnt-etsii a. link E as shown ut Fi This link E is commented with a link (l its shown et .ifi l; while the iinl; Gis loosely connected will .i spindle l which is journulod in the heads ol the rollos' une! adapted to be inunipulutod from ono enel thereof hy means of a wrenrh, (not shounj the extremity of thc roller being sshioncd for that purpose. It willbe observed that the links E and G form u toggle joint. By turning the spindle l to throw the links 1.o the dotted line osition, lhc section A.' will be drawn inwardly, thus reducing the diam eter of the roller wherelln: eration located. There should lic it leest fwo este, of links E and G Connected is shown in ha; one set being m. escl; wud oi' :he rolls-r. As each set is s. duplicate nl' ille other, not been thought ueocssurjf' to illustrer;

intl la the .Ii lim.

more than one toggle joint attachment in the drawing. There may of course be more than two to rglo joints if required. VBut in any event t e construction in this regard would be a mere duplication of that shown in Fig. @Assuming that the section A is in the position shown by dotted lines, it is evident that an ahrading sheath may be easily aI- )lied to the roller or removed therefrom. lThe size of this sheath must of course be sc regulated that when the hinged section A is in the dotted line the roller or slip o therefrom readily; while when the hinged part A is thrown to the Ifull line position shown in Fig. 6, the abradinV sheath willhe locked seeurel on the ro ler. The tog le devices are pre erably so regulated that w ien the section A is thrown outwardly to the full line position shown in Fig. (i, t ie toggle members will be thrown slightly beyond the dead center as shown in full lines in Fi f. 6 whereby there will be no tendency for these members to accidentally change their position during the use of the machine in t e regular performance of lts function.

It should be stated that when the swinging frame 14 has been moved to any position, it may be desirable to hold it in the same position for some little time. We have therefore provided the arm 15 immediately above the support 13, with a set screw 9U which may be screwed against the su A)porting plate 13 whereby the frame ma locked in any desired position as willi stood.

Attention is called to the fact that the power from the motor is transmitted to the two shafts 30 and 44, in such a manner th-'at the shaft 44 which rotates the abrading rollers, has much greater speed than the shaft 30 which imparts the orbital travel to the rollers or rotates their axle 40 in a plane parallel with the axis of the latter. In other words the speed of the motor shaft is great] reduced wien the motion is transmitte to the shaft 30, while the speed of the, shaft 44 as shown in the drawing 1s substantially the same as that of the motor shaft. giving a comparatively high speedy to the shaft which imparts the rotary movement to the abrading rollers as heretoforeexplained There is an advantage in having each roller housed independently of the other roller, since this construction permits the ex osure of the surface acted on between the rollers so that the condition of the surfaceI may be known to the operator without moving the smoothing or dressing head The term head maly if desired be employed to designate the rol ers mounted on their radial arms or individual axles and connected to have both rotary and orbital travel as heretofore described. In order to allow the individual osition it will slip on toi l l housing of 'each roller, it of course becomes necessary that the housfor the rollers must rotate therewith. This also further 11ecessitates a stationa housing member 59 with which the suction conduit 8 is conneeted as heretofore described. It is also necessary that there should be a tight joint between the rotary and stationary housing members as shown at 60 in 4 of the drawing.

The portable platform 5 may be termed a carriage, since' it may be of any suitable construction ada )ted to perform the function heretofore exp ained.

In order to permit the tilting of the swinging frame 14 from the vertical position 1n either direction through the instrumentality of the arm 19, it is necessary that the bearing in the arm 15 which receives the sleeve 24, should be slightly enlarged ab ove and oelow, since it must be assumed that the sleeve 24 occupies a vertical tion that the frame part 12 u on which t arm y19 is mounted occupies a orizontal po-` sition, the sleeve 19 moving laterally in the horizontal plane. It may be stated that it is not considered that it will ever be necessary to tilt the frame 14 to any considerable extent, from the vertical position but it is thought that it may be desirable under some circumstances to throw this frame slightly from the vertical in one direction or the other, and this slight adjustment it is believed will be practicable by slightly enlar ing the bearing or opening 25 at the top an bottom as shown in Fig. 2 of the drawing.

Referring again to Fig. 6, the spindle I ma be journaled in suitable bearings I attached to the heads B on the rollers. Only one of these bearings is indicated in the drawing, butit will be readily understood that there is sinilar bearing attached to the opposite rea i Having thus described our invention, what we claim is: Y

1. 'I 11 a machine of the class described, the combination of a portable structure, a motor thereon, a frame mounted to swing on said structure, a pair. of rollers mounted to rotate, an abrading sheath removably connected with said rollers, and means mounted on the swinging` platform and actuated from the said motor for simultaneousl imparting rotary movement to both ro 1ers in reverse directions.

2. In a machine of combination of a portable structure, a motor thereon, a frame mounted to swing on said structure. an axle carried b thev swinging frame, a pair of rollers loose y mounted on the axle, an abrading sheath removably connected with said rollers, and' means mounted Qon the swinging frame and actuated from the motor on the portable structure for impartposition on the assumpthe class described theisb ing-rotary movements to the rollers in reverse directions, and simultaneously actuar`- ing the axle to impart orbital travel to the rollers in a direction opposing their individi combination of a portable frame, a motor carried thereb a frame mounted to swing on the portable loose thereon, a hollow shaft journaled in the swinging frame and connected to the axle between the rollers, yieldin means connected with the frame for regu ating said hollow shaft, another shaft passing through the hollow shaft, a. gearing connection between the framefan axle, two rollersY last named shaft and the two rollers whereby the rotation of the said shaft imparts motion to the rollers in reverse directions, a motor mounted on the ortable frame, and means connected with tlie motor for operatin the two Shafts, whereby the rollers are given oth rotary and orbital travel in opposing directions for the purpose set forth. y In testimony whereof we alx our signatures in presence of two Witnesses.

AUGUST KRAEMER. ARTHUR CHILD. 'Vitnesses:

A. J. OBnmN, DENA NELSON.

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