lift crane

[gaz1]

what you need to remember is your fitting it with block and tackle for an easy lift

heres the old way using a capstan and block and tackle usually seen on wood ships

 

[u facciolu]

thank you for your simple and ingenious solutions, such as those used by the ancient Egyptians to erect the majestic pyramids, they did not have cranes or caterpillars, they did not have forklifts or telescopic telehandlers, but ingenuity sweat elbow grease and good muscles, thanks again fori tupoi advice and suggestions, always precious.

Montaje de estructura metalica

Colocacion de estructuras de 6" en Monten para Nave o Bodega

youtu.be

COMO SUBIR UNA VIGA DE HIERRO / ENTRE 2 PERSONAS

COMO SUBIR UNA VIGA DE 8" O MAS GRANDE UTILIZANDO UN TECLE O POLEA.

youtu.be

 

[gaz1]

the pole itself could be half cut into 2 by a grinder with a slitting disc widened by a 3mm disc and then a 6mm grinding disc

slotting a steel plate through both sides and welding it all 4 sides

all it needs is a hole so a chain can be fitted through it x2 close to the bar so it transfers the downward force into the straight pole

the chain fastens to the block and tackle

 

[gaz1]

the thing with a capstan you can pull 4 ropes at the same time

or 4 wires going through the pulleys as will be the same effect replace the wires when needed

therefore a structure will lift equal as long as you have tied it in with framing

a simple wedge shape will stop the frame coming back down as shown in one of the vids ive posted

same method using a motor

 

[gaz1]

same thing from one of your videos

but i wouldnt advise it fastened to your scaffolding if it fails you could lose your scaffolding and any person on top of it

best off on its own gin pole and scaffolding used as climbing and tightening of bolts

the use of the block and tackle is really to make it easier the problem is length or rope needed so 40ft would be x7

before it hits the winch the one advantage dont need as many men to lift gear and it pulls up slow and safe but you need a longer wider reel to roll the wire onto or thicker reel so the wire can spool onto it

most cranes use this method of block and tackle

 

[gaz1]

this link will take you to both types of capstans

capstan for merchant ship

Does anyone have pictures / drawings of anchor deck capstans for merchant ships from around 1860? The plans are lacking in any real detail. This is what I have to work with at present: Thanks, Grant.

modelshipworld.com

 

[u facciolu]

thanks for the right suggestions, I honestly had thought of modifying the mobile scaffolding with wheels to reinforce it and create a sturdy lifting point, on which to hang the hoists, but I believe that if I do not ballast it with bricks or with barrels of water it will safely tip over due to the imbalance during the lifting phase, the only solution would be to find a pole, create a base and apply a hoist to it. anyway thanks again, you are very ingenious simple but functional proposals, thanks sorry if I disturbed you. thank you if you are very valuable, kind and helpful.

 

[gaz1]

the method ive been talking about

all based on a pole lift easy take apart and transport

 

[u facciolu]

Shop Progress1

thanks for the valuable suggestions I own the hoists, now the only one is to create the lifting structure with recycled material, thanks again, sorry if I took advantage of your ingenuity, your experience and your patience, thanks and sorry again.

 

[gaz1]

if your curious how a genie lift works

they are heavy and are made out of 3mm steel

as you can seee we do use them



there also a 2 - 4 man lift they are no fun carrying them up those steps

 

[gaz1]

review these for ideas and fastenings

 

[gaz1]

if your a builder and you build often you want portable and light but strong

so id go for a 3 or 4 post frame

the strongest part is through the frame in the middle of all 3 or 4 posts hence the pull through the mast wire in the above video

your either going to play with a double gin pole to lift the pole or you build it using the h frame scaffolding bolting it together

i would use a truss system as wide as 12" or wider

as the center stabilising pole and using the outer sides as another point of lift one fails the others can take it up

 

[u facciolu]

type of circus structure self-erecting tensile structure type self-erecting construction site crane right?

Circus rigging from truss

This article discusses how to suspend circus equipment from box truss. Update: We have a video [https://youtu.be/-nUZqLCx9W4] we created on the topic For circus rigging, we use equipment from many different sources – most commonly the lifting industry, rope access, scaffolding, and sailing...

circusrigging.info

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