Патент USA US2409420код для вставки
od.' 15, 1946. F. E. BROBERG ' 2,409,416 „ BLADE GRINDER Filed May 9, 1945 lNVENTOB FRED EBROBERG Ar TORNEYS Patented Oct. 15, 1946 , 2,409,416 UNITED STATES PATENT'OFFICE 2,409,416 BLADE GRINDER Fred E. Broberg, Racine, Wis. Application May 9, 1945, Serial No. 592,878 1 Claim. 1 My invention refers especially to scissors blade Sharpeners and it has for its object to provide a simple, durable blade sharpener and grinder for use by those unskilled in the cutlery sharpener art. The tool is especially adapted for use in barber 5 2 The face-plate is formed with a horizontally disposed blade receiving slot 8, adjacent to the center of the abrasive ring, and said slot extends to the edge of the face-plate, at which point it is intersected by a rectangular clearance notch 8’ shops or other places wherein scissors or shears in the housing wall, as best indicated in Figure 4 for hand cutting are in use and constantly requir of the drawing. ing attention. ` The lower edge of the slot 8 has fitted thereto A specific object of my invention is to provide a a slightly inclined guide or blade rest 9, which grinding tool having a motor driven abrasive ring 10 rest is pivotally supported by a bracket I0 secured and a blade guide or rest associated therewith, to the front wall of the face-plate I', adjacent and having adjusting means to position the blade the center of the abrasive ring. guide incidental to wear upon the grinding ring. The outer end of the blade rest 9 is provided Another object of my invention is to provide a with a downwardly turned lip II, having a blade wheel disc having a group of circumferential aper 15 guide tooth II’ extending upwardly therefrom. tures therein, for the reception of iibre buttons The inner end of the lip II is slotted for'the re which are formed with the ring and secured by ception of a retaining screw I 2, which engages the upsetting, the said feature being desirable due housing wall rearwardly of the notch therein, to the fact that the ring is strengthened against whereby the inner edge of the rest or guide, which cross cracking undergrinding pressure. 20 parallels the face of the abrasive ring, is adjust With the above and other minor objects in .able with reference to the ring face angle. view, the invention consists in certain peculiarities The abrasive pulley wheel assemblage is driven of construction and combination of parts, as will by a belt I3 from a pulley I3', which pulley is be hereinafter fully set forth with reference to mounted upon the shaft of an electric motor 4. the accompanying drawing and subsequently 25 It will be noted that the motor is pivotally claimed. s mounted upon the inner side walls of the housing In the drawing: Iby screw bolts I5. 2ï' Figure 1 represents a sectional elevation of a Interposed between the lower face of the hous grinding tool embodying the features of my ln ing sleeve 2 and motor shell, is`¿§ a guided coil vention, -the section being indicated by line I-I 30 spring I6, which serves to hold the belt I3 under of Figure 2.4 tension at al1 times. ¿j Figure 2, a face View of the same with parts While I have shown and described a simple ex broken away and in section to more clearly illus emplification of my invention minutely as to de trate structural features. tail, it is to be understood that I may vary the Figure 3, a plan sectional view of the tool, the 35 structural features within the scope of the claim. section being indicated by line 3-3 of Figure 1, I claim: „ and A blade Sharpener tool comprising a housing, Figure 4, a fragmentary face View of the hous a motor driven abrasive wheel mounted therein, ing, having attached thereto an adjustable blade the same including an abrasive ring, a face-plate guide. 1 40 carried by the housing, having a horizontally dis Referring by characters to the drawing, I indi posed slot therein extending outwardly from a cates a housing having e, removable face-plate I' point near the center of the wheel, an angularly and a horizontally disposed shaft receiving sleeve positioned blade rest adjacent the lower edge of 2. The sleeve has journaled therein a shaft 3 to the slot, a bracket carried by the face-plate near which is secured a pulley wheel 4 at its front end. 45 the center of the wheel, a pivot connecting the The outer face of the pulley in turn has fitted and bracket and blade rest, a down turned lip extend~ secured thereto a disc 5. The disc is formed with ing from the blade rest, a guide tooth carried by a series of circumferential perforations, through the lip adapted to guide a blade being sharpened, and means connecting the down turned lip, and which is pressed headed buttons 6 of an abrasive ring -I to permanently secure the ring and, as in 50 housing for adjusting the aforesaid blade rest dicated, the front face of said ring is slightly relative to the abrasive ring. angled or ilared rearwardly, it being noted that the ñared grinding face of said ring just clears FRED E. BROBERG. the inner face of the face-plate I ’.