Cutting tool assembly with replaceable spray nozzle housing

A cutting tool assembly comprising:

• a support block to be secured to a moving element of a mining machine, said support block having a block bore with a tapered barrel outlet end to be adjacent the working end of a cutting tool;
• and
• an insert ring fixed into said block bore;
• a protection sleeve inserted in said block bore.

A cutting tool assembly comprising:

• a support block to be secured to a moving element of a mining machine, said support block having a block bore with a tapered end to be adjacent the working end of a cutting tool;
• and
• an insert ring fixed into said rearward end of said block bore;
• a replaceable spray nozzle housing mounted on said support block;
• a first fluid passage located in said support block wherein said replaceable nozzle housing is in fluid communication with said first fluid passage
• wherein said block bore generally having a tapered holding barrel portion and a rearward end, an annular support shoulder between said outer barrel portion and said rearward end, said ring insert is press fit into said rearward end of said block bore, said ring insert being easily removed from said support block in the field to permit cleaning of said first fluid passage.

A block for a cutting tool assembly, said block comprising:

• a block to be secured to a moving element of a mining machine wherein the support block has a first outer surface and a second outer surface, wherein a first fluid passage and a second fluid passage communicate fluid between said first outer surface and said second outer surface;
• said block having a block bore with an outlet end to be adjacent the working end of a cutting tool,
• wherein said first fluid and said second fluid passages are substantially straight from said first outer surface to said second outer surface so as to permit a drill to be inserted into said first fluid passage for cleaning,
• wherein the first fluid passage and second fluid passage intersect adjacent said second outer surface.

A cutting tool assembly having a protection sleeve holding barrel comprising:

• a support block, and
• a protection tool sleeve,
• said support block having a block bore with a tapered outlet portion,
• wherein said protection sleeve holding barrel comprises said tapered outlet portion and a rearward barrel portion, said rearward barrel portion formed by an insert ring fixed to said block bore;
• wherein said protective tool sleeve is inserted inside said protection sleeve holding barrel.