The handhold is about to be threaded into the cover support flange from the under side.

The Multi-Positional Handhold is shown about to be inserted into the Multi-Position Handhold receptical of the manhole frame cover support flange.

The Handhold is threaded into the receptical. It is now secure and ready for use in its upward position.

The handhold has been threaded completely through the frame receptical and is now secure and ready for use in its downward position. The head of the handhold rests in the counter sinkhole below the rim of the cover support flange so as not to interfere with the cover when it is placed upon the frame.

The handhold is in place and is now secure and ready for use in its inverted position, it is left one thread depth below the top of the cover support flange so as not to interfere with the cover when it is placed upon the frame. Note: often overlay rings are applied to the manhole frame to accommodate the final lift of asphalt. Should this occur before the handhold has been attached to the frame. The handhold can be threaded into the frame in its inverted position.

Handhold offers a secure grip for a workers hand.

The lock nut has been attached to the threaded end of the handhold showing plenty of room for a workers hand to achieve a secure and comfortable grip of the handhold.

A worker removing the cover of a manhole with the Armstrongs Multi-Positional Handholds attached to the frame may use the handhold as he enters it in its downward or below level position or he may choose to back thread the handhold through the threaded receptical as shown and use the handhold in its upward on ground level position. The lock nut on the threaded end of the handhold prevents the handhold from being inadvertently removed from the manhole frame.

The handhold in the inverted position offers a secure grip for a workers hand when entering or exiting a manhole.

ARMSTRONGS multi-positional handholdS

Patent No: US 9,845,586 - US 10,030,350 - US 10,030,351 - US 10,030,352 - CDN 2,915,957

Steps for placing the manhole frame:

When permanently placing the manhole frame to its final elevation upon the concrete support structure (typically concrete adjustment rings), ensure that the AMPH receptacle (the threaded countersink slot in the the frame lip) is centered over the step/rung in the manhole. Left or right of center to the outside edge of the step/rung is considered "centered". Note: Placement of the handhold beyond this range will still provide a secure handhold but may feel awkward to a worker entering or exiting the manhole.
Screw the threaded end of the handhold into the AMPH receptacle (a few drops of oil and a wrench will help) until the head of the handhold drops in the countersink slot.
With the handhold in place, draw the frame base away from the concrete rings to provide a couple of inches clearance between the handhold and the concrete rings so that a workers hand will fit comfortably around the handhold.
Before placing the cover upon the frame, ensure that the head of the handhold is properly seated below the top of the countersink slot so as not to interfere with the cover when it is placed upon it. Clean the handhold and threads of any grit or mortar.