ClipArt ETC
"Features six movable pulleys aligned on the same axis. This pulley was invented to reduce the friction of each block to a single wheel." —Quackenbos 1859

White's Pulley

"Features six movable pulleys aligned on the same axis. This pulley was invented to reduce the friction…

"System of moveable pulleys. Each pulley has a separate rope attached to a fixed support at one end." —Quackenbos 1859

Movable Pulleys

"System of moveable pulleys. Each pulley has a separate rope attached to a fixed support at one end."…

"A small wheel turning upon an axis." -Foster, 1921

Pulley

"A small wheel turning upon an axis." -Foster, 1921

A man exercising with chest weights. In this position, he is pulling straight back, alternating right and left repeatedly.

Chest Weights

A man exercising with chest weights. In this position, he is pulling straight back, alternating right…

A man exercising with chest weights. In this position, he is pulling straight down, alternating right and left repeatedly.

Chest Weights

A man exercising with chest weights. In this position, he is pulling straight down, alternating right…

A man exercising with chest weights. In this position, he is pulling towards his chest, alternating right and left repeatedly.

Chest Weights

A man exercising with chest weights. In this position, he is pulling towards his chest, alternating…

A man exercising with chest weights. In this position, he is extending his arms out, right and left together repeatedly.

Chest Weights

A man exercising with chest weights. In this position, he is extending his arms out, right and left…

A man exercising with chest weights. In this position, he is pushing his arms down, right and left together repeatedly.

Chest Weights

A man exercising with chest weights. In this position, he is pushing his arms down, right and left together…

A man exercising with chest weights. In this position, he is pushing his arms forward, right and left together repeatedly.

Chest Weights

A man exercising with chest weights. In this position, he is pushing his arms forward, right and left…

A man exercising with chest weights. In this position, he is pulling his left arm straight down repeatedly. The position is then switched to the right arm.

Chest Weights

A man exercising with chest weights. In this position, he is pulling his left arm straight down repeatedly.…

A man exercising with chest weights. In this position, he is extending his left arm straight out repeatedly. The position is then switched to the right arm.

Chest Weights

A man exercising with chest weights. In this position, he is extending his left arm straight out repeatedly.…

A man exercising with chest weights. In this position, he is extending his left arm straight out repeatedly. The position is then switched to the right arm.

Chest Weights

A man exercising with chest weights. In this position, he is extending his left arm straight out repeatedly.…

A man exercising with chest weights. In this position, he is bringing the handles to his knees and then straightening, bringing them over the shoulders.

Chest Weights

A man exercising with chest weights. In this position, he is bringing the handles to his knees and then…

A man exercising with chest weights. In this position, he was bent, brought the handles to his knees and now straightening, bringing them over the shoulders.

Chest Weights

A man exercising with chest weights. In this position, he was bent, brought the handles to his knees…

A man exercising with chest weights. In this position, he is pulling the handles toward his chest, together repeatedly.

Chest Weights

A man exercising with chest weights. In this position, he is pulling the handles toward his chest, together…

A man exercising with chest weights. In this position, he is pulling down with his left arm and up with his right, alternately repeating.

Chest Weights

A man exercising with chest weights. In this position, he is pulling down with his left arm and up with…

A man exercising with chest weights. In this position, he is pulling down with his left arm and across with his right, then switch.

Chest Weights

A man exercising with chest weights. In this position, he is pulling down with his left arm and across…

A man exercising with chest weights. In this position, he is extending his right arm and pulling across with his left, then switch.

Chest Weights

A man exercising with chest weights. In this position, he is extending his right arm and pulling across…

A man exercising with chest weights. In this position, he is extending his right arm across his back and moving his left arm upwards.

Chest Weights

A man exercising with chest weights. In this position, he is extending his right arm across his back…

A man exercising with chest weights. In this position, he is extending his left arm across his back and moving his right arm upwards.

Chest Weights

A man exercising with chest weights. In this position, he is extending his left arm across his back…

A man exercising with chest weights. In this position, he is extending his arms out together repeatedly.

Chest Weights

A man exercising with chest weights. In this position, he is extending his arms out together repeatedly.

A man exercising with chest weights. In this position, he is moving his arms out at the same time, directly forward.

Chest Weights

A man exercising with chest weights. In this position, he is moving his arms out at the same time, directly…

A man exercising with chest weights. In this position, he is moving his right hand up and out while he moves his left hand across his chest.

Chest Weights

A man exercising with chest weights. In this position, he is moving his right hand up and out while…

A man exercising with chest weights. In this position, he is moving his left hand up and out while he moves his right hand across his chest.

Chest Weights

A man exercising with chest weights. In this position, he is moving his left hand up and out while he…

A man exercising with chest weights. In this position, he is bending down passing his arms under his legs and then straightens out, bringing his arms above his shoulders.

Chest Weights

A man exercising with chest weights. In this position, he is bending down passing his arms under his…

A man exercising with chest weights. In this position, he has bent down and passed his arms under his legs and now straightens out, bringing his arms above his shoulders.

Chest Weights

A man exercising with chest weights. In this position, he has bent down and passed his arms under his…

A man exercising with chest weights. In this position, he extends his arms forward and returns.

Chest Weights

A man exercising with chest weights. In this position, he extends his arms forward and returns.

A man exercising with chest weights. In this position, he extends his left arm and returns the right, alternating repeatedly

Chest Weights

A man exercising with chest weights. In this position, he extends his left arm and returns the right,…

A man exercising with chest weights. In this position, he brings his hands forward together, and returns.

Chest Weights

A man exercising with chest weights. In this position, he brings his hands forward together, and returns.

A man exercising with chest weights. In this position, he extends his right arm out horizontally and returns.

Chest Weights

A man exercising with chest weights. In this position, he extends his right arm out horizontally and…

A man exercising with chest weights. In this position, he brings his left arm across his chest.

Chest Weights

A man exercising with chest weights. In this position, he brings his left arm across his chest.

A man exercising with chest weights. In this position, he brings his right arm down and extends his left arm out.

Chest Weights

A man exercising with chest weights. In this position, he brings his right arm down and extends his…

A man exercising with chest weights. In this position, arms are folded and he repeatedly stretches them out and brings them in.

Chest Weights

A man exercising with chest weights. In this position, arms are folded and he repeatedly stretches them…

A man exercising with chest weights. In this position, he extends the right arm out fully and brings the left arm to the right, across his chest.

Chest Weights

A man exercising with chest weights. In this position, he extends the right arm out fully and brings…

A man exercising with chest weights. In this position, he extends both arms out at the same time: left out horizontally, and right out vertically.

Chest Weights

A man exercising with chest weights. In this position, he extends both arms out at the same time: left…

A man exercising with chest weights. In this position, he is bent with his hands to the floor. He then straightens and brings his hands over his shoulders.

Chest Weights

A man exercising with chest weights. In this position, he is bent with his hands to the floor. He then…

A man exercising with chest weights. In this position, he extends his left arm out vertically.

Chest Weights

A man exercising with chest weights. In this position, he extends his left arm out vertically.

A man exercising with chest weights. In this position, he extends his left arm out upward at a 45 degree angle.

Chest Weights

A man exercising with chest weights. In this position, he extends his left arm out upward at a 45 degree…

A man exercising with chest weights. In this position, he extends his arms together in front of him.

Chest Weights

A man exercising with chest weights. In this position, he extends his arms together in front of him.

A man exercising with chest weights. In this position, he gently moves his head forward and back.

Chest Weights

A man exercising with chest weights. In this position, he gently moves his head forward and back.

A man exercising with chest weights. In this position, he bends his knee and brings his foot to the buttock, extends it forward again and repeats.

Chest Weights

A man exercising with chest weights. In this position, he bends his knee and brings his foot to the…

A man exercising with chest weights. In this position, he extends his right leg backward while leaning forward.

Chest Weights

A man exercising with chest weights. In this position, he extends his right leg backward while leaning…

A man exercising with chest weights. In this position, he extends his left leg forward and then bends it back again.

Chest Weights

A man exercising with chest weights. In this position, he extends his left leg forward and then bends…

A man exercising with chest weights. In this position, he extends his left leg forward and then bends it back again.

Chest Weights

A man exercising with chest weights. In this position, he extends his left leg forward and then bends…

A man exercising with chest weights. In this position, he brings his left leg down to the floor, straight the whole time.

Chest Weights

A man exercising with chest weights. In this position, he brings his left leg down to the floor, straight…

A man exercising with chest weights. In this position, he bends over and straightens his body with his hands over his head.

Chest Weights

A man exercising with chest weights. In this position, he bends over and straightens his body with his…

A man exercising with chest weights. In this position, he has bent over and now straightens his body with his hands over his head.

Chest Weights

A man exercising with chest weights. In this position, he has bent over and now straightens his body…

A man exercising with chest weights. In this position, he pulls his arms down and back, alternately repeating.

Chest Weights

A man exercising with chest weights. In this position, he pulls his arms down and back, alternately…

A man exercising with the chest developer.

Chest Developer

A man exercising with the chest developer.

A man exercising with the chest expander.

Chest Expander

A man exercising with the chest expander.

A man exercising with the giant pulley, used for chest and arms.

Giant Pulley

A man exercising with the giant pulley, used for chest and arms.

The torture of a free mason. Caption below illustration: "They next set my back against a thick board, at each extremity of which was pulley; through which a rope ran, that was fastened at the end of the chain at my wrist. The tormentors then, stretching these ropes by means of a roller, pressed and bruised my stomach in proportion as the ropes were drawn tighter.

Torture of a Free Mason

The torture of a free mason. Caption below illustration: "They next set my back against a thick board,…

"In the single fixed pulley (fig. 1) there is no mechanical advantage, the power and weight being equal. It may be considered as a lever of the first kind with equal arms. In the single movable pulley (fig. 2) where the cords are parallel there is a mechanical advantage, there being an equilibrium when the power is considered as a lever of the second kind, in which the distance of the power from the fulcrum is double hat of the weight from the fulcrum." -Marshall

Pulley

"In the single fixed pulley (fig. 1) there is no mechanical advantage, the power and weight being equal.…

"In a system of pulleys (figs. 3,4) in which the same string passes round any number of pulleys, and the parts of it between the pulleys are parallel, there is an equilibrium when the power is to the weight as 1 to the number of strings at the lower block" -Marshall

Pulley

"In a system of pulleys (figs. 3,4) in which the same string passes round any number of pulleys, and…

"In a system in which each pulley hangs by a separate cord and the strings are parallel (fig. 5), there is an equilibrium when the power is to the weight as 11 to that power of 2 whose index is the number of movable pulleys." -Marshall

Pulley

"In a system in which each pulley hangs by a separate cord and the strings are parallel (fig. 5), there…

Illustrations showing the six mechanical powers: lever, wheel and axle, pulley, inclined plane, wedge, and screw.

Simple Machines

Illustrations showing the six mechanical powers: lever, wheel and axle, pulley, inclined plane, wedge,…

The muscles of the right eye. Labels: A, superior straight; B, superior oblique passing through a pulley, D; G, inferior oblique; H, external straight, and , back of it, the internal straight muscle.

Muscles of the Eye

The muscles of the right eye. Labels: A, superior straight; B, superior oblique passing through a pulley,…

"A combination of fixed and immovable pulleys, employed to secure what engineers call a large 'mechanical edge.'"

Block and tackle

"A combination of fixed and immovable pulleys, employed to secure what engineers call a large 'mechanical…

A pulley, when fixed in such a way that it can only turn about a fixed axis, confers no mechanical advantage.

Pulley System

A pulley, when fixed in such a way that it can only turn about a fixed axis, confers no mechanical advantage.

This pulley arrangement gives a mechanical advantage of 2; for the lower, movable pulley may be regarded as an endless lever of the second order.

Pulley System

This pulley arrangement gives a mechanical advantage of 2; for the lower, movable pulley may be regarded…