Re the "heavy" manhole cover - please don't be misled about this!
For example, I recently built a concrete soakaway 3m deep using concrete rings. It has a solid iron manhole cover like what you see in the street which is much heavier than 7.5kg
Yes the thing is heavy for me to lift - but actually even my relatively weak partner can open it with ease.
You use a simple short hook or section of rope, to crack the cover and then shift it sideways to open. It pivots very easily
Simple physics.
The point is that with these kind of access covers, you don't need to dead lift them.
You lever them or pivot them off.
Most of the weight is supported by the ground at all times, so I only need enough force to move it up 10cm or so, and then overcome friction to drag it sideways.
In the same way i was able to reposition the concrete rings themselves because the weight is supported by the ground - i only need to overcome friction.
Bottom line, even an injured man can open a 7.5kg cover.
He does not need to use his stomach muscles to lift.
He can pivot it off with his arm/shoulder alone - or knees.
Hi MrJitty, yes, that is how it works, thanks for explaining it so well.
This week, I had to transport a big arm chair. I got help with putting it into the car, but when I arrived home there was no one to help me get it out of the car and I did not want to leave it there because it was getting very cold.
I had some limitations:
- the chair itself had been stripped of most of its covers and had become a bit rickety as a result, so I had to be careful, I could not drag it along.
- a flatbed transport trolley, unfortunately the chair was wider and the legs would hit the ground;
- plus myself, with pain in the lower back. At least for the time being, I can't carry heavy objects and must evade certain movements.
It is amazing how much you can achieve without much strength or force.
I had HB's case in my mind while I 'struggled' with this huge object. Well, the hardest part was
figuring out how to do it.
Moving the chair out of the car - gravity is your best friend. Toppling the chair with its
back on the transport trolley and the chair legs on the left and right of the handle - you turn it sideways and gravity comes to the rescue.
In all it took me a bit longer than someone who could easily lift the chair and carry it on his shoulder, but I got the chair indoors in less than 10 minutes.
I have no doubt that IS was able to transport and hide the bodies during the time that his mobile was inactive, without leaving traces of the transport, despite his recent surgery.
fftopic:
