DE484108C

DE484108C - Compound file

Info

Publication number: DE484108C
Application number: DESCH87618D
Authority: DE
Original assignee: Individual
Current assignee: Individual
Publication date: 1929-10-11

Description

PA T IiN T ANSPRÜCHE:PA T IiN T CLAIMS:

1. Zusammengesetzte Feile, gekennzeichnet durch zwei Reihen hinter- und im Winkel zueinander liegender Plättchen mit geriffelter Schlneidfläche.1. Compound file, characterized by two rows behind and Small plates lying at an angle to one another with a corrugated cutting surface.

2. Feile nach Anspruch 1, dadurch gekennzeichnet, daß die einzelnen Plättchen von verschiedener Breite sind und in ihrem Gehäuse so· im Winkel zueinander aufgestellt sind, daß die Stirnseiten der schmäleren Plättchen gegen das Ende der Breitseiten der breiteren Plättchen liegt.2. File according to claim 1, characterized in that the individual platelets are of different widths and in their housing so · at an angle to each other are set up that the end faces of the narrower platelets towards the end of the Broadsides of the wider platelets.

3. Feile nach Anspruch 1, dadurch ge-3. File according to claim 1, characterized

■ kennzeichnet, daß die Plättchen gleiche Breite besitzen und im Gehrungsschnitt mit ihren Stirnflächen aneinanderliegen.■ indicates that the plates have the same width and are mitred lie against one another with their end faces.

Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings

Claims

$ 4ίΟ8

The invention relates to a file of those. Type in which the cutting surface through, a large number of corrugated plates is formed whose work surfaces are at an angle to each other.

Up until now, these panels were made from a single piece and bent at an angle; they are therefore expensive and difficult to regrind.

ίο According to the present invention there is the cutting surface of the file is not made from plates that are angled and made from one piece, but from a large one Number of simple straight plates made of rolled and fluted. Strip steel, individually and are placed at an angle to each other in the U-shaped iron rail that the face of the plates of one row is at the end of the broad side of the tiles in the other row. In this case the tiles of one row must be kept narrower than those of the others.

In the drawing, the subject of the invention is in

Fig. Ι shown in side view and partially in section.

Fig. 2 shows a top view of the new file, and in

Fig. 3 is one of the platelets shown in a front view and in section.

In the U-shaped frame a , the individual plates b and c of different widths forming the cutting surface are inserted upright so 'that the face of the smaller plates c of one row lies against the end of the broad side of the larger plate of the other row. Both .Plattenreihien are between two clamping jaws e corresponding cross-section. a screw g provided with a handle / screwed tightly together.

The plates can also be chosen to be of the same size and with their front edges Be provided with a miter cut. The latter However, because of the required machining of the 'one end face of the platelets, it is gone considerably more expensive.

The plates can also be provided in a known manner with 5 "incisions h on the cutting edge or on their entire surface with straight or curved and intersecting corrugations to increase the contact surface.