"When the load is uniformly distributed on a beam of any cross-section, it will sustain a load twice as great as when the load is applied in the middle between the supports." — Hallock, 1905

Beam Strength

"When the load is uniformly distributed on a beam of any cross-section, it will sustain a load twice…

"The maximum safe load in pounds that any cylindrical beam is capable of sustaining at the middle when its ends merely rest upon supports, is equal to four times the cube of its diameter multiplied by .6 of the constant given in the table, and the product divided by the distance between its supports in feet." —Hallock 1905

Cylindrical Beam

"The maximum safe load in pounds that any cylindrical beam is capable of sustaining at the middle when…

"Behind comes a boy with a cart load of grass." —Carpenter, 1902

Boy with cart

"Behind comes a boy with a cart load of grass." —Carpenter, 1902

"When the load is uniformly distributed on a cantilever of any cross-section, it will sustain a load twice as great as when the load is applied at one end." — Hallock, 1905

Cantilever

"When the load is uniformly distributed on a cantilever of any cross-section, it will sustain a load…

A rectangular cantilever with supports on the end and the load on the middle.

Cantilever

A rectangular cantilever with supports on the end and the load on the middle.

"The maximum safe load in pounds that should be allowed at the end of any cylindrical cantilever is equal to the cube of its diameter in inches multiplied by .6 of the constant given in the tale, and the product divided by its length in feet." —Hallock 1905

Cylindrical Cantilever

"The maximum safe load in pounds that should be allowed at the end of any cylindrical cantilever is…

"A load of hay...upsets where one wheel rises by little above the other, because it is broader on the top than the distance of the wheels from each other; while a load of stone is very rarely turned over..." -Comstock 1850

Center of Gravity of a Load of Hay

"A load of hay...upsets where one wheel rises by little above the other, because it is broader on the…

"Place a known weight (say 100 g.) in the scale-pan, and to this weight add the weight of the clevis and the scale-pan, and call the sum the load. Measure the deflection of W caused by the load. Double the load, and measure the deflection thus caused." -Avery 1895

Deflection of Wood Using Known Weights

"Place a known weight (say 100 g.) in the scale-pan, and to this weight add the weight of the clevis…

"A lever is an inflexible bar freely movable about a fixed axis called the fulcrum. If the fulcrum is between the power and weight, the lever is of the first class." — Avery, 1895

First Class Lever

"A lever is an inflexible bar freely movable about a fixed axis called the fulcrum. If the fulcrum is…

Two men transferring freight from an old truck at a train station.

Freight unloading

Two men transferring freight from an old truck at a train station.

An illustration of a group of adults and children standing in front of a wind powered ship.

Group Standing in Front of Ship

An illustration of a group of adults and children standing in front of a wind powered ship.

A Horse used to carry heavy loads.

Pack Horse

A Horse used to carry heavy loads.

"At the command load each front-rank man or skirmisher faces half right and carries the right foot to the right, about one foot." — Moss, 1914

Load

"At the command load each front-rank man or skirmisher faces half right and carries the right foot to…

"With the right hand he turns and draws the bolt back." — Moss, 1914

Load

"With the right hand he turns and draws the bolt back." — Moss, 1914

"Takes a loaded clip and inserts the end in the slip slots, places the thumb on the powder space of the top cartridge, the fingers extending around the piece and tips resting on the magazine floor plate." — Moss, 1914

Load

"Takes a loaded clip and inserts the end in the slip slots, places the thumb on the powder space of…

"Carries the hand to the small of the stock." — Moss, 1914

Load

"Carries the hand to the small of the stock." — Moss, 1914

"Each rear rank moves to the right foot, takes a similar position opposite the interval to the right of his front rank man, muzzle of the piece extending beyond the front rank and loads."

Load

"Each rear rank moves to the right foot, takes a similar position opposite the interval to the right…

An illustration of a man and woman carrying a large bundle of fabric.

Man & Woman Carrying Fabric

An illustration of a man and woman carrying a large bundle of fabric.

A man loading a cart full of goods.

Man Loading Cart

A man loading a cart full of goods.

"A pulley is a grooved wheel, around which a rope is passed, and is either fixed or moveable." — Goodrich, 1844

Pulley

"A pulley is a grooved wheel, around which a rope is passed, and is either fixed or moveable." —…