US 4,306,643 A · Coal feed pipe and positioner

Abstract

A system for feeding coal or other material blown from a pipe in a desired trajectory is disclosed including a positioning device for applying directional force to the midsection of the pipe to produce slight bending for orienting the free end, which device has an horizontal adjustment member and a vertical adjustment member. Each comprising a slotted arm with an integral handle mounted on three congruent support plates and pivoted respectively in the interstices between the middle and outer plates. The plates have concentric circular openings therein through which a sleeve for passing the pipe therethrough axially extends. The sleeve also passes through the respective slots in the arms of the adjustment members, so that when the handle of the vertical adjustment member is pivoted in either direction about a pivot pin disposed through one side of the three plates, the pipe will be bent to displace its axis vertically, while pivoting of the horizontal adjustment member about a pivot pin passing through the lower portion of the three plates bends the pipe to displace its axis horizontally. The three plates are also provided with the locking pins which may be passed respectively through holes at the opposite ends of the slots from the pivots in each of the adjustment members to lock the members in their desired positions after adjustment.

Claims11

Dependent claims

Apparatus for adjusting the orientation of the free end of a pipe from which coal or other material is fed, comprising:

first positioning means for applying a vertical bending force to said pipe in a region along its length displaced from said free end and comprising:
a first slotted arm having a first elongated slot therein through which said pipe is passed;
and
a first upstanding handle arm connected to said first slotted arm and oriented substantially normally to the long axis of said first slot;
second positioning means for applying a horizontal bending force to said pipe in said region along its length displaced from said free end and comprising:
a second slotted arm having a second elongated slot therein through which said pipe is passed;
and
a second upstanding handle arm connected to said second slotted arm and oriented substantially coaxially with the long axis of said second slot;
and
mounting means for mounting said first and second positioning means and comprising:
first means for pivoting said first slotted arm about a point toward one end substantially coaxial with the long axis of said first slot;
and
second means for pivoting said second slotted arm about a point toward one end substantially coaxial with the long axis of said second slot.

10 more elements

Dependencies are inferred from the claim text.

Coal feed pipe and positioner

Life of this patent

Coal feed pipe and positioner

Life of this patent

Abstract

Claims11