Патент USA US2120252код для вставки
June 14, 1938. v_ KADR] ' _ 2,120,252 ABRADING MACHINE v Filed Sept. l5, 1956 2 Sheets-Sheet l FIG. 1'. 42 se ` _la ì V1 B ' ~ INVENTOR. I vasâáf / Kadri ATTORNE> . June 14, 1938. l ' v_ KADR] 2,120,252 ABRADING MACHINE Filed Sept. 15, 1936 FlG. 5. 2 Sheets-Sheet 2 „ß e: ¥ Fla. 12. a, A 90€: V 92 92 INVENTOR. VELES ELI.: Kairi ,ì BCZY lì, 5%@/ _ ' _ AATTORNEYS. Patented June 14, 1938 2,120,252 UNITED STATES PATENT OFFICE 2,120,252 ABRADING‘rl MACHINE. Vassaf Kadri, New York, N. Y., assignor, by di r_ect and mesne assignments, of thirty percent to Nouri Rejeb, New York, N. Y., and twenty ñve percent to Mary Bagdadi, Brooklyn, N. Y. Application September 15, 1936, Serial No. 100,930 2 Claims. (Cl. 51-170) This invention relates to abrading machines. ing devices to be associated‘therewith, the letter An important object of the invention is to pro A designates generally the novel abrading ma vide an abrading machine adapted to receive any chine and the letters, B, D and E forms of abrad of a plurality of selected abrading devices. ing devices which may be associated therewith « Another important object is to provide an while the letter C, a section of abrading mate abrading machine which may be quickly and rial which may be employed with the abrading easily equipped with any of a plurality of selected device B. ` ' abrading devices. The abrading machine A includes a housing Another object is to provide an abrading ma chine adapted for‘manipulation by the hand, with portions of the device having dual func tions. Still another object is to provide a novel abrad ing device which may be readily coupled to an abrading machine. Yet another object is to provide a novel sec tion of abrading material adapted for use with the abrading device and abrading machine above described. Other objects and advantages of this invention will be apparent during the course of the follow ing detailed description, taken in connection with the accompanying drawings, forming a part of this specification and in which drawings: Figure 1 is a side elevation of the novel abrad ing machine. ' ` Figure 2 is a similar view, but with portions removed so as to disclose the construction be neath. 30 Figure 3 is a vertical section through an abrad ing device containing portions of the novel abrad ing machine. Figure 4 is a section substantially on the line 6_4 of Figure 3, the abrading devices being shown in top plan. , Figure 5 is a perspective view of a roller pref erably employed in the novel abrading machine, and one embodiment of abrading device asso ciated therewith. Figure 6 is an end elevation of the roller shown 40 in Figure 5. ì Figures 7 and 8 are end elevations of the two portions making up the abrading device shown in Figure 5. 45 Figures 9 and 10 are fragmentary sections of portions of abrading material, somewhat similar to that shown in Figure 8. Figures 1l and 12 `are end elevations of other forms of abrading devices which may be em ployed in the novel abrading machine shown in Figures 1 to 4 and coupled to the roller shown in Figure 5. In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of 55 the novel abrading machine and various abrad I5 which may comprise an upper arcuate Wall I6, a forward end Wall I'l, a rearward end wall 10 I8 and substantially paralleling side walls I9 and 20. The housing also includes an oiiset por tion 2 I, extending substantially horizontally from the rearward end wall | 8, provided with side walls 22 of its own but joining the side walls I9 and 20, a substantially ñat upper wall 23 and a lower wall 24. This offset portion 2| has- a mouth 25 opening into the chamber or compart ment 25 within the main housing comprising the walls I6 to 2|), and at its end opposite the mouth 25, the offset portion may be provided with a closure 2l, which may be hinged in any ap proved way to the offset portion 2| and provided with a latch 28 of any approved kind. As will be seen from Figures 2 and 3, this offset portion 2| is disposed at the lowermost portion of the housing I5 and opens into the lowermost por tion of the chamber 26 within the main housing. Consequently, there is communication between the chamber 26 and the chamber 29 within the oiîset portion 2|. From Figure 4 it will be noted that the width of the mouth 25 is substantially the width of the chambers 26 and 29. 15 20 25 30 ` Carried by the housing I5 and projecting pref erably substantially horizontal from the rear 35 ward end wall I8, may be a hand grip 30. This han-d grip 3.0 is disposed above and spaced from the offset portion 2| so that the operator, grasp ing the hand grip 30, may extend his fingers into the space 3| between the hand grip 30 and 0E set portion 2|. The hand grip 30 may be circu 40 lar in transverse cross section and is consider ably of less diameter than the width of the orf set portion 2|. If desired, a bridge 32 may join the offset portion 2| and hand grip 30 at the 45 rearward end 33 of the latter. Extending through the hand grip 30 may be a bore 34 accommodat ing a conductor to be later described as well as electric switch means associated with said con ductor. This bore 34 extends to and opens into 50 the chamber 26. The side wall I8 of the housing I5 may be provided with an opening 35 and a hinged clo sure 36 therefor. Suitable latches 3l may be provided. to retainthisrclosure in a closed posi 55 2 2,120,252 tion. Furthermore, the closure 36 may have a pair of spaced apart perforations 38, providing bearings for a pair of spindles later described. The opposite side wall |9 may have a pair of spaced apart circular recesses 39 with the axes of one perforation 38 and recess 39 in alignment and the axes of the other perforation 38 and recess 39 in alignment. Carried by theA housing l5, are, preferably, a the machine is resting upon said surface. In the example shown, a plurality of spaced apart cas tors 55 may be resiliently mounted, as is generally well known in the art, and disposed at suitable positions, extending below the housing |5 as shown in Figures l to 3. When a slight down' ward pressure is placed upon the handle grip 30, the entire housing will be lowered so that abrad ing material upon the peripheries of the rollers lO pair of spaced apart rotating members or rollers « 4|) «will come into contact with the surface to be worked upon by the abrading machine. 40. Each roller 40 preferably has flat, parallel Now as for the abrading devices B, any selected ing end faces 4|. From one endvface 4| of each` extends a spindle 42 and fromçtheV opposite end face 4I extends a spindle 43 provided with a 15 pulley or wheel 44. The spindlesv 42 extend into the perforations 38 when the closure 36 is closed. two of whichmay be employed by the abrading machine at one time. Each of these includes a 4tubular member 6D, with the circumference of 15 the inner periphery thereof of a size so that it will be snugly accommodated upon the rollers 40. with suitable ball bearings and housings 45 en-Y -~ Each tubular 4member-601s provided with a plu circling the end portions of the spindles 43 and rality -of spaced apart lugs or projections 6I, V As for the spindles 43, they may be provided 20 accommodated within the recesses 39. shaped in transverse cross section, and these ex 20 tend- longitudinally of the tubular members l6|) plurality of spaced apart longitudinally extend-» from the inner peripheries thereof. Each tubular ing peripheral' grooves 46. `VThese grooves 46 are member 68 is also provided with va longitudinally > V-shaped; A’asgviewed' from thev end faces 4| of extending slot 62, having a Width less than the 25 25 the rollers 40 and, preferably, three of Vsuch width of the grooves 41 of the rollers'40 so that, groovesY 46 areY provided, equally Aspaced apart when the tubular members 60 are upon the roll over the periphery of the rollers 4|l. Each roller Vers 48,-a portion of the tubularA members will Preferably, each'roller `40 is provided with a 4U may carry a second> form of peripheral groove overhang the grooves 41 when a slot 62 of one 41, extending longitudinally ofthe roller. This tubular member 69 is over a groove 41 of one - 30 groove 41 preferably has facing side walls 58 and a bottom 49 which‘may be arcuate or flat, but, roller 48, -as shown in Figure 3, providing by this 30 arrangement, a substantially T-shaped groove. preferably, arcuate. The groove 49 is relatively The lugs 6| are accommodated within the V wider than grooves 46 and may be spaced an equal distance `from the two nearest grooves 46. shaped grooves 46. of rotation of the rollers 40 are disposed so that a portion of the rollers extends below the bottom of the housing '|5. It should also be noted that having a coating '1| of adhesive lretaining' an abrasive 12, such as grit, thereon. The length of » The section of abrading material C may’com- . ~ As may be seen from Figures 1 to 3, the axes ‘ prise a suitable length 10 of flexible material the mouth 25 of the offset portion -2| faces the 40 periphery of one of the rollers 40, being disposed` so that the plane of the inner surface'of the upper wall 23 of the oifset portion 2| extends to about or above the axis of the nearest roller and thatY the'plane of the inner surface of the lower 45 wall 24 of the oiîset portion 2| extends well below this section of abrasive material C is preferably v slightly greater than the circumference of the outer periphery of the tubular members 60 and 40 its width maybe substantially the same as that v of the tubular members 60. The length 10 of flexible material may have two substantially like side edge portions 13, free of grit, and each pro vided with a length’14 of material, substantially 45 U-shaped in transverse cross section, extending this‘axis. The nearest adjacentv roller is, pref erably, spaced quite closely to the mouth 25. The ’ along the edges of the edge portions 13 and over direction'of rotation of the rollers 40 is indicated lapping a part of these portions. These lengths by arrows in Figure k3 and material removed by 14 of material may be ribbons of metal, suitably the ‘abrasive employed on the rollers 4|l‘wi1l be bent to the proper U-shape, «and secured to the 50 50 thrown‘mainly into the compartment within the ’ edge portions 13 in any approved way, such as » by the use of adhesive. They not only protect offset 4portion 2|. these edge portions against tearing, but they Any approved means may be'employed to ro tate theïrollers 40 (thru the medium of'a gear are also provided so that when-the sections C are disposed about the outer peripheries of the tu 55 55 drive, a chain drive or a‘belt and pulley). In the Yexample shown, >a conventional V‘motor 58 bular members 60, with the abrasive 12 out is employed in association with a belt and pulleys wardly, the edge portions 13 will be accommo and secured,\for example,` to the wall I6 so that ' dated within the grooves-41, with the adjacent it will be above of and clear of the rollers 40. portions of the sections C extending through the slots«62. The sections of abrasive material D 60 60 A suitable conductor 5| may be connected with the motor, as is well known in the art, and extend are retained upon the tubular members 60 and rollers 40 simply by this‘gripping action between through the bore 34 in the hand grip 3U and pro the vportions of the sections C within the slots ject from thence to any suitable source of elec tric energy. If desired, thehand grip 40 may and grooves and the walls of these slots 'and grooves, plus the contact of the sections C with 65 65 carry a conventional electric switch, having’ a the peripheries of the tubular members 60. Since switch actuator or button 52 and operatively con nected with the conductor 5|, as is'well known sections of abrasive material may be provided, carrying various sizes of abrasive 12, it is apparent > in the art. thatY a selection of sectionsC may be provided From the pulley 53 of the motor 50 may ex tend a suitable belt 54, operatively connected and from this selection the proper sections chosen 70 for a particular job. ' with the pulleys 44 upon the spindles~ 43. The abrasive device D includes a tubular mem Any approved means may also be employed, ber 80, with the circumference of the inner pe if desired, to resiliently urge the housing I5 up wardly so~ that, normally,_the peripheries of the -riphery thereof f of a size vso that it will be snugly accommodated upon the rollers 4|).Y AEach tubu 75 rollers 40"wil1`be spacedabove‘ a'y surface when " 2,120,252 lar member 80 is provided with a plurality of lugs or projections 8|, V-shaped in transverse cross section and these extend longitudinally of the tubular members 80 from the inner periph eries thereof. The tubular members 80 may have, extending from their outer peripheries, suitable abrasive material, in this case, Wire or similar bristles 82. The abrasive device E includes a tubular mem 10 ber 90, with the circumference of the inner pe riphery thereof of a size so that it will be snugly accommodated upon the rollers 40. Each tubular member 90 is provided with a plurality of spaced apart lugs or projections 9|, V-shaped in trans 15 verse cross section, and these extend longitudi nally of the tubular members 60 from the inner peripheries thereof. The outer peripheries of the tubular members 90 may be scored, or grooved, as at 92, to provide an abrasive surface, similar 20 to the surface of a iile or rasp depending upon the material to be Worked. From the above, it will be seen that a novel abrading machine has been provided so that it may be easily and expeditiously equipped with 25 any selected tubular member, such as B, D or E, simply by unlatching the closure 36. raising the closure and slipping suitable abrading devices over the rollers 40, the lugs 6|, 8| or 9|, depend ent upon the abrading device employed, fitting 30 into the grooves 46 of the rollers 40, whereupon the abrading devices will be held again at inde pendent rotation, Whereupon the closure 36 may be lowered and the perforations 38 accommo date the spindles 42 of the rollers 4|). When the machine is in use, most of the ma 35 terial removed by the abrading devices Will be projected into the chamber Within the offset por tion 2| of the housing |5 and this offset portion 2| will also protect the hand of the operator 40 against injury when the hand grasps the hand grip, since the offset portion is relatively broad and is below the hand grip. The Work may then proceed until it is desirable to substitute, for the abrading devices then in 45 the machine, others having a different abrading surface and it is now apparent that the substitu tion may be easily made. 'I'he abrading devices B, D and E are easily stored and may be grouped according to abrasive 50 surfaces, so that little time may be employed in selecting the proper device. Since a sandpaper abrasive wears down rela 3 tively quickly, by providing the abrasive section C, a Worn abrasive section C may be quickly re moved and a new section C may be applied, as is now apparent. Various changes may be made to the form of invention herein shown and described, Without departing from the spirit of the invention or the scope of the claims. ` What is claimed is: 1. In an abrading machine, a housing, a roller 10 rotatably carried by said housing and provided with a substantially V-shaped peripheral groove and a second peripheral groove having substan tially paralleling side walls, said grooves being spaced apart and extending longitudinally of said 15 roller, a tubular member detachably mounted upon said roller, having a V-shaped lug project ing from the inner periphery thereof and extend ing longitudinally of said tubular member with said V-shaped lug accommodated in said V 20 shaped groove, said tubular member being pro vided With a longitudinally extending slot having a width less than the width of the second named groove and disposed over said second named groove, and a section of abrading material re 25 movably extending over the periphery of said tubular member, with the end portions of said section extending through said slot and into the second named groove. 2. In an abrading machine, a housing, a roller 30 rotatably carried by said housing and provided with a substantially V-shaped peripheral groove and a second peripheral groove having substan tially paralleling side Walls, said grooves being spaced apart and extending longitudinally of said ' 35 roller, a tubular member detachably mounted upon said roller, having a V-shaped lug project ing from the inner periphery thereof and extend ing longitudinally of said tubular member With said V-shaped lug accommodated in said V shaped groove, said tubular member being pro 40 vided with a longitudinally extending slot hav ing a width less than the width of the second named groove and disposed over said second named groove, and a section of abrading material removably extending over the periphery of said 45 tubular member, with the end portions of said section extending through said slot and into the second named groove andv into engagement With the overlying inner face of said tubular member 50 and the Walls of said second named groove. VASSAF KADRI.