Telescoping handle for a small heavy duty hand truck

A telescoping handle for a small strong collapsible hand truck, said hand truck including at least an upright support means, said handle including a first U-shaped portion and a second U-shaped portion, said U-shaped portions slidably interengaged, two pairs of openings in said first U-shaped portion, each said pair horizontally aligned, one pair near the upper portion of said first U-shaped portion and the other pair near the lower portion of said first U-shaped portion, a pair of openings in said second U-shaped portion, said pair of openings horizontally aligned, said pair of openings near the lower part of said second U-shaped portion, detent means extending through said pair of openings in said second U-shaped portion, spring means within said second U-shaped portion biasing said detent means to extend through said openings, said detent means engagable in either of said two pairs of openings in said first U-shaped portion, guide means on said upright support means, said guide means adapted to guide said handle adjacent to said upright support means, a first stop means, said first stop means adjacent to said upright support means adapted to stop the upward movement of said handle in said guide means, a second stop means adjacent said upright support means adapted to stop the downward movement of said handle in said guide means, and means to fix said handle in selected position with relation to said upright means, said means to fix including means to depress said detents extending through said first U-shaped portion's openings and release said first and second U-shaped parts from engagement.