Cable cutter

Application filed January 13,

This invention relates to a portable cable cutting device and has for its object the prqvision°of a tool of this character which is simple in form, easily used and transported ₅ and cannot readily be injured by the rough usage to which such tools are invariably subjected, particularly in the logging industry.

A further object attained is that in consequence of the positive and correct disposition 10 of the actual cutting edges the· action of the tool is exceptionally rapid and effective; so much is this the case that a cable of considerable size when held between supports may easily be severed by the tool when manually 15 supported.

The essential elements of the construction adopted in this invention consists of two opposing concavely curved steel cutters sliding in a guide against each other in the 20 same plane, thus producing a perfect shearing stress on the cable, the stress being effected by hammer blows which are followed up by a simple ratchet device to retain their successive effect and prevent any rebound of 25 the cutters.

The invention is fully described in the specification following together with the drawings herewith which form part of this application and in which:

Fig. 1 is a front elevation of the movable cutter member (or chisel member).

Fig. 2 is a longitudinal section of the same on its centre line.

Fig. 3 is a front elevation of the station35 ary member containing the internal guide for the chisel member, and

Fig. 4 is a longitudinal section of Figure 3 on its centre line.

Taking the drawings in detail and noting 40 that similar numerals in the different views indicate identical parts, the movable or chisel-member is indicated by 5, its curved and angular cutting edge by 6, this being preferably on a separate and removable 45 member 7.

The body of the member 5 terminates in the hammer-faced projections 8 and has on each side extensions or ears 9 which carry the fulcrum pins 10 of the two levers 11. 50 These levers each have at their free extremities a claw-like projection 12 which acts as a ratchet catch to secure the linear effect of the hammer blow delivered upon the face 8. The levers 11 are held in engagement with 55 the ratchet rack by the helical extension spring 13 which engages both levers at 14.

1927. Serial No. 160,891.

The body of the U-shaped, member is indicated at 15. : This member also has a projection 16 on its outer end which acts as a convenient pedestal or foot. The interior of the 60 U-shaped member has a slide and guide 17 suitable to receive the cutter end of the chisel-member 5, and has also a corresponding concavely curved angular cutting edge 18 also removably attached to the body 65 member.

The two cutters come into slidable contact with each other on a flat face 19 and thus effect a perfect shearing action on the cable inserted between them. 70

On each side of the member 15 is formed a ratchet rack 20. The angularity of these teeth are such that their apices point downwards towards the foot 16 and thus serve to retain the claw ended levers when the chisel 75 member is struck for the purpose of severing a cable. In this connection it may be noted that in practical use the claws do not wear the ratchet points so much as they deepen the tooth and increase the holding ef- 80 feet.