"Circuits of a multiple series lamp." —Croft 1917

Multiple Series Arc Lamp

"Circuits of a multiple series lamp." —Croft 1917

"When several simple levers are connected together, and act one upon the other, the machine is called a compound lever." -Comstock 1850

Compound Lever

"When several simple levers are connected together, and act one upon the other, the machine is called…

"When all of the positive plates are connected on one side, and all of the negative plates are connected on the other side, as shown, the cells are said to be joined in parallel, or in multiple arc." -Avery 1895

Parallel Connection

"When all of the positive plates are connected on one side, and all of the negative plates are connected…

An illustration of Chanute's multiple gliding machine.

Chanute's Multiple Gliding Machine

An illustration of Chanute's multiple gliding machine.

An illustration of a two story house.

Two Story House

An illustration of a two story house.

An illustration of a two story house.

Two Story House

An illustration of a two story house.

"By placing two plane mirrors facing each other, we may produce an indefinite series of images of an object between them. Each image acts as a material object with respect to the other mirror, in which we see an image of the first image, etc. When the mirrors are placed so as to form with each other an angle that is an aliquot part of 360 degrees, the number of images is one less than the quotient obtained by dividing four right angles by the included angle, provuded that quotient is an even number." -Avery 1895

Multiple Images in a Plane Mirror

"By placing two plane mirrors facing each other, we may produce an indefinite series of images of an…

"When a high degree of force is required, several moveable pulleys may be combined, as represented [here]. A and B are fixed pulleys; C and D are moveable ones, from the block of which the weight W is suspended" —Quackenbos 1859

Multiple Pulleys

"When a high degree of force is required, several moveable pulleys may be combined, as represented [here].…

"Diagram of a multiple or parallel connection. When connected in this manner the voltage of the battery is the same as that of a single cell, but the current is equal to the amperage of a single cell multiplied by the number of cells." -Hawkins, 1917

Parallel Connection

"Diagram of a multiple or parallel connection. When connected in this manner the voltage of the battery…

"Pulleys designed to allow the weight to be pulled up while the power is applied downwards." -Avery 1895

Pulleys

"Pulleys designed to allow the weight to be pulled up while the power is applied downwards." -Avery…

"Diagram of a series multiple connction. Two sets of cells are connected in series, and the two batteries thus formed, connected in parallel. The pressure equals the voltage of one cell, multiplied by the number of cells in one battery, and the amperage, that of one cell multiplied by the number of batteries." -Hawkins, 1917

Series Multiple Connection

"Diagram of a series multiple connction. Two sets of cells are connected in series, and the two batteries…

"Multiple plate static discharger. (Grid should bridge both sides of belt and be as close to the motor as possible.) ." —Croft 1920

Static Discharger

"Multiple plate static discharger. (Grid should bridge both sides of belt and be as close to the motor…

"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…