ClipArt ETC
"Partly fill with strong brine a Florence glask the cork of which carries a delivery-tube and a thermometer. Pass the delivery-tube through a 'water jacket,' J, kept cool substantially as shown. Heat the liequid in the flask unitl it just boils, and taste the distilled water that collects in R." -Avery 1895

Distilation

"Partly fill with strong brine a Florence glask the cork of which carries a delivery-tube and a thermometer.…

"The hydraulic ram uses alternating water pressure, air pressure, and suction to provide a steady stream of water through the delivery pipe, e." —Hallock 1905

Hydraulic Water Ram

"The hydraulic ram uses alternating water pressure, air pressure, and suction to provide a steady stream…

A system for manual delivery of mail to a series of recipients includes a stack of mail holders each comprising a front flap, a back flap and a central fold.

Mail Bag Delivering Machine

A system for manual delivery of mail to a series of recipients includes a stack of mail holders each…

One or more mail pieces are disposed in each holder, such that all of the mail pieces in each holder are to be delivered to the same recipient. The holders are stacked in a predetermined order for a carrier delivery route, and may be banded or otherwise secured together until the time of delivery.

Mail Bag Delivering Machine

One or more mail pieces are disposed in each holder, such that all of the mail pieces in each holder…

An illustration of a mouse postman delivering mail to a house in a tree.

Mouse Postman Delivering Mail to House in Tree

An illustration of a mouse postman delivering mail to a house in a tree.

"To the end of the delivery-tube of a Florence flask containing water, attach a 'trap' so that the water that condenses in the delivery-tube may be retained in the trap." — Avery, 1895

Trap

"To the end of the delivery-tube of a Florence flask containing water, attach a 'trap' so that the water…

"Four-way cock, a cock having two passages in the plug and four passage-ways for delivery, or one which unites four pipes so as to deliver from either one at will, according to the position of the valve. Such a cock is used in the continuous air-brake." -Whitney, 1911

Four-Way Cock Valve

"Four-way cock, a cock having two passages in the plug and four passage-ways for delivery, or one which…