ClipArt ETC
"Gun-lock. a, hammer or cock; b, tumbler; c, bridle; d, bridle-screw; e, sear; f, sear-screw; g, sear-spring; h, sear spring screw; i, main-spring; k, swivel; l, l, side-screws." -Whitney, 1911

Gun Lock

"Gun-lock. a, hammer or cock; b, tumbler; c, bridle; d, bridle-screw; e, sear; f, sear-screw; g, sear-spring;…

"Suppose the tumbler, a, to be filled with water, and placed beyond the principal focus of the concave mirror, and so managed as to be hid from eye c, by the screen b. The lamp by which the tumbler is illuminated must also be placed behind the screen, and near the tumbler, To a person placed at c, the tumbler with its contents will appear incerted at e, and suspended in the air." -Comstock 1850

Deception by Mirrors

"Suppose the tumbler, a, to be filled with water, and placed beyond the principal focus of the concave…

A group of different varieties of domestic pigeons including the tumbler, the pouter, and the carrier pigeon.

Domestic Pigeons

A group of different varieties of domestic pigeons including the tumbler, the pouter, and the carrier…

A tumbler containing a piece of potato. It is covered with cotton. This is used to grow bacteria.

Tumbler

A tumbler containing a piece of potato. It is covered with cotton. This is used to grow bacteria.

"An improvement of great importance in the hosiery trade was effected through the invention of the tumbler needle, patented by Mr. M. Townsend in 1858. The tumbler needle consists of a stem somewhat bulged near the point. The bulged part contains a groove in which there is hinged a short pin. The pin is so placed that, when turned to the hooked or curved point, its own point falls into a spoon-like indent, thus forming a smooth metal loop." — Encyclopedia Britannica, 1893

Tumbler Needle

"An improvement of great importance in the hosiery trade was effected through the invention of the tumbler…