US858171A - File. - Google Patents

Description

No. 858,171. PATENTED JUNE 25. 1907.

. H. GBTAZ.

PILE. y APPLIUATIN FILED AUG. 21, 1906.

. 2 SHEETS-SHEET 1.

@fr Egfr 227x/ Zrfx T725 W/ TNE SSE S MOU.- mM/@L- 5%@ HENRY GETAZ, OF SCHENECTADY, NEW YORK.

FILE.

Specicaton of Letters Patent.

Patented J une 25, 1907.

Application filed August 21.1906. Serial No. 331.490.

To @ZZ when?, t may concern:

Be it known that l, HENRY GETAZ, a citi- Zen of the Republic of Switzerland, and a resident of Schenectady, in the county of Schenectady and State of New York, have invented a new and Improved File, of which the following is a full, clear, and exact description.

` This invention is an improvement in files relating to that class of files in which the teeth are composed of a series of cutting blades clamped together in an angular relation and adapted to be readily sharpened when dulled.

The object of the invention is to improve the iiles of this character generally, especially in the matter of providing for the delection of the cutting blades in an eective manner.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of the file when completely assembled and ready for use; Fig. 2 is an inverted plan view of Fig. 1; Fig. 3 is a side elevation of the file; Fig. 4 is a rear end elevation of the file Fig. 5 is a front end elevation of the iile; Fig. 6 is an inside view of one of the locking plates; Fig. 7 is a top edge view of the same; Fig. 8 is an end view of one of the locking plates with a deflecting plate held therein and showing in dotted outline`the position of the core of the iile when the cutting blades or plates thereof are in angular position; Fig. 9 is a side elevation of Fig. 8; Figs. 10 to 14 inclusive are sectional views through the iile showing the core in section and the position assumed by its two members when the cutting blades are respectively at right angles thereto, and in different angular positions as when the file is in use; Figs. 15 to 19 inclusive are respectively plan views of Figs. l0 to 14; Fig. 20 is a plan view of a detail of construction; Fig. 21 is a transverse section on the line 21--21 of Fig. 20 Fig. 22 is a plan view of one member of the core Fig. 23 is a similar view of the other elements of the core; Fig. 24 is a transverse section on the line 24-24 of Fig. 22; Fig. 25 is a section on the line 25-25 of Fig. 23; Fig. 26 is a plan view of the improved file assembled with a modified form of locking plate, said elevation corresponding to Fig. 1; Fig. 27 is a iront end view of Fig. 26; Fig. 28 is a plan view of the locking plate shown in Fig.

cut away as clearly shown.

26; Fig. 29 is a side elevation of one ofthe deilecting plates employed in connection with the locking plate shown in Fig. 28; Fig. 3Q is an elevation showing the locking plate shown in Fig. 28 and deflecting plate in Fig. 29 in assembled relation, and Fig. 31 is a plan View of a washer employed in connection with the construction shown in Fig. 26.

Referring more especially to the iile shown in Figs. 1 to 25 inclusive, the numerals 1 and 2 indicate respectively the elements of a core employed in the construction of the iile, the element 1 being made as an integral partof the shank of the iile, which is screw-threaded as at 3 at its forward end, the oppositeand outer end 4 of the element 1, as also that portion adjacent to the`screw thread 3, being left square for a purpose hereinafter made apparent.

As best shown in Figs. 10 to 14 inclusive, the core ofthe iile comprising the elements 1 and 2 when placed together, is a substantial square divided on one of its diagonals, the acute angles of each of the elements being It is thus seen by this construction that on sliding the elements of the core transversely of each other, the dimensions of the core will increase in one direction and bel contracted in the opposite direction. A series of plates 5 of thin, hardened sheet steel, having square apertures 6 slightly larger than the corewhen the latter is in square formation, are slipped over the core and prevented Jfrom sliding over its forward end by reason of the head of a bolt 7 and a nut 8 threaded thereon, the bolt passing through either of the apertures 9 or 9a in the squared portion 4.

A series of locking plates 10 of substantially Z-shape shown in detail in Figs. 6 to 9 inclusive, are provided on their inner faces with inclined intersecting slots 11 and slots 12 in one end. The slots 11 are for receiving the ends of a plurality of deilecting plates 13 substantially U-shape, one deflecting plate being provided for each of the clamping plates and held in one of the slots 11 by a set screw 14. After the cutting blades have been passed over the core and a deflecting plate secured to each of the clamping lates in the corresponding slots 11 of the atter, the deflecting plates are passed over to straddle the core at substantially equal distances apart, lea ving the locking plates on top thereof, as shown in Fig. 1. Set screws 14a are then passed through the slots 12 of the lock- IOO IOS

IIC

ing plates and threaded into the next adjacent plate, operating to set the deflecting plates at the angle desired for the cutting blades. A U-shaped collar 15, having a pointed nose a is then placed astride the shank of the tool adjacent to the cutting blades after suitable washers have been placed therebetween, and a nut 16 applied to the thread 3 used in forcing the cutting blades tightly together, causing them to turn at the angle of the dellecting plates and the elements of the core sliding on each other to iill the apertures in the cutting blades when in this angular position. After the nut 16 has been screwed in place, a set screw 17 -at one side of the collar 15 is tightened to securely hold the collar in place.

As shown in Figs. 2 and 3, the washers inserted intermediate the bolt 7 and the cutting blades bear on the nut and bolt head, the bolt being freely rotatable in order that the head and nut may readily assume an angle corresponding to that of the dellecting plates. When the cutting blades have been clamped in the angular position shown in Fig. 1, the side face can be dressed olf on an emery-Wheel, grind-stone or the like forming teeth at this face of the file on the cutting blades when they are turned in an opposite angular relation. It is thus apparent that when the blades are turned at an angle to form teeth on one face, an adjacent face is a smooth, plain surface. The grinding of the cutting blades on all the faces can be continued by securing the locking plates and 4their attached dellecting plates at different sides of the file, which act to turn the plates in the several angular positions illustrated in Figs.l 16 to 19 inclusive. It is also possible to change the angle of deflection of the blades by removing the deflecting plates from the slots 11 in the clamping plates, and replacing them in the slots in the clamping plates at an angle thereto shown in Fig. 6. W'hen the cutting blades have become worn to such an extent that they cannot be further ground, they are removed and new ones substituted in their place. i

In Figs. 25 to 31 inclusive is shown a modification in all respects alike to the construction just described except the clamping plates 18 are of diamond-shape and are notched at each side for receiving the projections 19 extending from the U-shaped deflecting plate 13a. A washer 20 having a projection 21 from one face, is placed at each end of the file when the cutting blades are assembled, the projections acting as a stop for the diamond-shaped locking plates. As shown in Fig. 26, when the cutting blades have been clamped together, the adjacent edges of the locking plates contact with each other and rigidly hold the blades at the desired angle.

Although I have described the invention in detail, it is to be understood that the precise embodiment thereof is not material provided its essential characteristics are employed as pointed out in the annexed claims.

Having thus described my invention I claim as new and desire to secure by Letters Patent:

1. A lile having teeth composed of a series of cutting blades removably held together, deilecting plates placed at predetermined points between the blades, and locking plates secured to the deflecting plates and to each other to regulate the angle at which the cutting blades are turned.

2. A file comprising a divided core of two members, a series of apertured cutting blades composing the file teeth assembled on the core, and means associated with the blades to regulate the angle at which they are turned, said means causing the members of the core to slide transversely upon each other and contact at all sides of the apertures in the blades.

3. A file having a core diagonally divided, a series of apertured cutting blades adapted to be passed over the core and held thereon in an angular relation, and means associated with the cutting blades to regulate the angle at which they are held, said means comprising a system of deflecting plates arranged at suitable points between the blades and locking plates attached to the deilecting plates at one side of the blade.

il. A lile comprising a core diagonally divided, a series of apertured cutting blades adapted to be clamped thereon in angular relation, a plurality of deflecting plates inserted between the blades at predetermined points, and means in fixed relation to the deflecting plates to regulate the angle thereof as described.

5. A file comprising a core, a series of cutting blades forming the teeth of the. iile adapted to be removably attached to the core, and a series of deflecting plates arranged between the blades having means to regulate the angle at which the cutting blades are secured.

6. A file comprising a core of two members of substantially triangular section adapted to transversely slide upon each other, and a series of apertured cutting blades adapted to be passed over the core and held in an angular position thereto, whereby the members of the core slide upon each other, contacting at all sides of the apertures in the blades.

7. A file comprising a core composed of two members of substantially right angle triangular section, a plurality of cutting blades having square apertures adapted to be passed over the core, and means for forcing the blades in an angular position whereby the members of the core slide upon each other and contact at all sides of the apertures in the blades. tlllnaa.

8. A le comprising a core, a series of aper- IOO tured cutting blades forming the teeth of the file adapted to be fixed in angular relation to the core, a series of U-shaped deilecting plates inserted at predetermined points between the blades, locking plates in fixed relation to the deileoting plates, and means carried by the locking plates for adjusting the angularity of the defleeting plates and blades.

9. A file comprising a core composed of two triangular members adapted to transversely slide upon each other to change its dimension, a series of apertured cutting blades adapted to be passed over the core and held in fixed relation thereto in an angular position, and means y associated with the blades for regulating their inclination, as described.

10. A iile comprising a core composed of two members substantially triangular in cross section, a series of apertured cutting blades adapted to be passed over the core and held in an angular relation thereto, a plurality of U-shapeddeileoting plates between the blades and astride the core, a locking plate in fixed relation to each deieeting plate, and means carried by the looking plates for adjusting the angularity ofthe defleeting plates. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. HENRY GETAZ. Witnesses:

GEO. FULLERTON, i PAUL SUssAN.

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