Cutting Edge Products - Glass Blowing Pipes

Cutting Edge Blow Pipes
We questioned glassblowers about their pipes and punty rods. We knew we could improve the existing products and solve the three most often cited problems:

Welds That Crack
Typical pipes and hollow punty rods are welded only once at the head. When they are hot and must bear the weight of glass, a "hinge" effect occurs. Hinging stretches and compresses the weld bead—the weld weakens, then cracks. Our pipes and punty heads are triple welded, and our joints are beveled for maximum weld penetration.

Before we insert the tange of the head into the body, we bevel the weld joint and drill two perpendicular holes. The initial weld is in the bevel for maximum penetration. The second weld fills the remainder of the bevel. The final step is welding through the holes in the body to the head tange. This creates a weldment that resists cracking

(Diagram A).

Pipes and Punty Rods That Bend
Jeff's finest mountain bikes were built from Chrome-moly 4130 aircraft tubing. It's light and stiff, and that's why we chose it to make pipes and punty rods. It's steel, so it will oxidize. True, it doesn't look pretty, but we think the texture of the oxidation enhances the grip. A little steel wool or a Scotch-Brite pad will remove any annoying oxidation. (Also available with a stainless steel body.)

Pipes That Throw Scale
Pipes1 To reduce scaling from the head, we make ours from 309 stainless steel. This metal is recognized in Guide to Selecting Carpenter Specialty Alloys for its resistance to scaling at high temperatures.

To reduce the chance of scale coming out of the head into the glass piece, Jeff designed a revolutionary Cool Tube—an optional 316 stainless steel tube inside the body, attached at the head

(Diagram B).

To prevent scale from accumulating in the pipe, Jeff designed a beveled edge for the part of the mouthpiece that is inserted into the body. This acts as a funnel, channeling particles in the pipe to fall out easily when the pipe is inverted

(Diagram C).

Standard Features of Cutting Edge Pipesand Punty Rods
Hang Collar
Foam Grip
Plastic Mouthpiece

Options for Cutting Edge Pipes and Punty Rods
Stainless Steel Body
Cool Tube for Blowpipes

Go here for Pipe specifications & prices.


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