Plow having a reciprocating blade attachment

Claim 2

In a cable laying plow including a plow shank terminating in a plow tip and structure for directing cable downwardly along the rear edge of the plow shank, the combination comprising: an elongated frame mounted for vertical sliding movement along the forward edge of said plow shank, a plurality of sharpened teeth along the forward edge of a unitary support, said support being detachably connected to the forward edge of said frame, and means connected to said frame for reciprocating said frame along the forward edge of said plow shank.

Claim 3

A cable laying plow comprising: a plow shank adapted for connection to a prime mover, said plow shank having a longitudinal vertical guide portion disposed along its forward edge, a plow toe mounted on the forward edge of the bottom of said plow shank, said plow toe defining a vertical slot therein and having top and sides converging in a forward point and further having a surface rearwardly tapering in said top surface intersecting said slot, a guide structure connected to said plow shank for directing a cable downwardly along the rear edge of said plow shank, frame means supported on the forward edge of the plow shank and receiving said vertical guide portion thereof, a generally V-shaped support member detachably secured to said frame, said support being formed in a plurality of vertically spaced sections with the lowermost section extending into said plow toe slot, a plurality of forwardly facing teeth carried on the forward edge of each section of said support member, a hydraulic motor mounted on said shank and having an output shaft, and eccentric drive means connecting said output shaft to said frame means whereby actuation of said motor and advancement of said prime mover, will cause severing of the soil by said teeth and separation and removal of dirt and debris along said plow toe surface and through said plow toe.

Claim 4

A cable laying plow comprising: a plow shank adapted for connection to a prime mover, said plow shank having a longitudinal vertical guide portion disposed along its forward edge, a plow toe mounted on the forward edge of the bottom of said plow shank, said plow toe defining a vertical slot therein and having top and sides converging in a forward point and further having a surface rearwardly tapering in said top surface intersecting said slot, a guide structure connected to said plow shank for directing a cable downwardly along the rear edge of said plow shank, frame means supported on the forward edge of the plow shank and receiving said vertical guide portion thereof, a generally V-shaped support member detachably secured to said frame, said support being formed in a plurality of vertically spaced sections with the lowermost section extending into said plow toe slot, a plurality of forwardly facing teeth carried on the forward edge of each section of said support member, a hydraulic motor mounted on said shank and having an output shaft, and eccentric drive means connecting said output shaft to said frame means whereby actuation of said motor and advancement of said prime mover, will cause severing of the soil by said teeth and separation and removal of dirt and debris along said plow toe surface and through said plow toe.

Claim 5

The plow according to claim 2 wherein said guide structure is pivotally connected to said plow shank.

Claim 6

The plow according to claim 3 wherein said guide structure comprises chute means.

Claim 7

The plow defined in claim 2 and further comprising: means for limiting the range of movement of said frame along said plow shank.

Claim 8

The plow defined in claim 5 further including: projections extending from said plow shank through slots in said frame for preventing separation between said plow shank and said frame.

Claim 9

The cable laying plow defined in claim 2 wherein said teeth have a pyramidal configuration.

Claim 10

The plow according to claim 2 further characterized by cooperating means on the plow shank and the frame for limiting the extent of vertical reciprocation of the frame under the action of the motor means.

Claim 11

The plow according to claim 8 wherein said motor means and said frame are operatively interconnected by a rotary eccentric driven by the motor means and a linkage interconnecting the rotary eccentric and the frame.

Claim 12

The plow according to claim 2 wherein the cutting teeth define both upwardly and downwardly facing cutting edges and are therefore operative to effect cutting in both directions of reciprocation of the frame.

Claim 13

The combination of claim 2 wherein each of said teeth include at least four cutting edges.