ClipArt ETC
"The air pump is an instrument for removing air from a given space. A closed vessel R is called the receiver, and the space that it encloses is that from which it is desired to remove the air. It is usually made of glass, and the edges are ground so as to be perfectly air-tight. When made in the form shown, it is called a bell-jar receiver." — Hallock, 1905

Air Pump

"The air pump is an instrument for removing air from a given space. A closed vessel R is called the…

"The air pump is an instrument for removing air from a given space. A closed vessel R is called the receiver, and the space that it encloses is that from which it is desired to remove the air. It is usually made of glass, and the edges are ground so as to be perfectly air-tight. When made in the form shown, it is called a bell-jar receiver." — Hallock, 1905

Air Pump

"The air pump is an instrument for removing air from a given space. A closed vessel R is called the…

"Gun. A, breech; B, barrel; C, band; D, breech-block; E, butt; F, butt- or heel-plate; G, front sight or bead; H, guard- or trigger-plate; I, guard-bow; K, hammer; L, lock; M, peep-sight; N, N, pipes; O, pistol-grip; P, rear sight; Q, receiver; R, side-screws or -nails; S, S, stock; T, tip; U, trigger; V, wiping-rod." -Whitney, 1911

Parts of the Gun

"Gun. A, breech; B, barrel; C, band; D, breech-block; E, butt; F, butt- or heel-plate; G, front sight…

This image "shows a cross section through the magazine empty, and with cut-off "on," shown in projection. The parts are receiver, A; bolt, B; firing pin, C; cut-off, D; rear lug slot, E; bolt locking lug channels, F; magazine, G; follower, H; magazine spring, I; and floor plate, J." -Moss, 1914

Empty Magazine

This image "shows a cross section through the magazine empty, and with cut-off "on," shown in projection.…

This image "represents a cross section through the ejector with the magazine loaded. The parts shown are receiver, A; bolt, B; firing pin, C; ejector, D; clip slots, E; bolt locking lug channels, F; magazine, G; follower, H; magazine spring, I; and floor plate, J." -Moss, 1914

Loaded Magazine

This image "represents a cross section through the ejector with the magazine loaded. The parts shown…

A manual air pump. R is the receiver. The space that the receiver encloses is what it removes the air from.

Air Pump

A manual air pump. R is the receiver. The space that the receiver encloses is what it removes the air…

The Bell receiver reproduces sounds made on the other end of the circuit, from a transmitter of some kind, used in telephone correspondance. -Atkinson 1903

Bell Receiver

The Bell receiver reproduces sounds made on the other end of the circuit, from a transmitter of some…

"Wireless Telegraphy is a system of transmitting messages between distant points without the use of wires."—(Charles Leonard-Stuart, 1911)

Wireless Telegraph Receiver

"Wireless Telegraphy is a system of transmitting messages between distant points without the use of…

"The sounder is a telegraphic receiver consisting of an electromagnet, and a pivoted armature that plays up and down between its stops as the circuit is alternately made and broken. the message is 'read by sound,' i.e., from the clicks made by the armature, substantially as indicated [before]." -Avery 1895

Telegraph Sounder

"The sounder is a telegraphic receiver consisting of an electromagnet, and a pivoted armature that plays…