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" The proper form of the curvature of the cam is a modified involute of a circle, the radius of which is equal to the horizontal distance between the axis of the cam-shaft and the centre of the stamp-stem. The curvature should be increased or made greater... "
Statistics of Mines and Mining in the States and Territories West of the ... - Stran 662
1870
Celotni ogled - O knjigi

House Documents, Otherwise Publ. as Executive Documents: 13th ..., Količina 10

United States. Congress. House - 1870 - 882 strani
...; and the hubs are streiifrthr' with wrought-iron bauds. The proper form of the curvature of thf « is a modified involute of a circle, the radius of which is equal t" T horizontal distance between the axis of the cam-shaft and the cent* the stamp-stem. The curvature...
Celotni ogled - O knjigi

Notices of Mining Machinery and Various Mechanical Appliances in Use Chiefly ...

William Phipps Blake - 1871 - 260 strani
...three inches wide, is made smooth by grinding ; and the hubs are strengthened with wrought-iron bands. The proper form of the curvature of the cam is a modified...is done so as to ease the contact, by allowing the earn to commence to act upon the tappet at the least practicable distance from the axis of the cam-shaft,...
Celotni ogled - O knjigi

House Documents, Otherwise Publ. as Executive Documents: 13th ..., Količina 1

United States. Congress. House - 1871 - 926 strani
...uniformly. The involute is described in practice by cut-tin},' from a thin board a circular piece, the radius of which is equal to the horizontal distance between the centers of shaft and stem, as above. At a given point on the periphery is fixed one end of a thread,...
Celotni ogled - O knjigi

Statistics of Mines and Mining in the States and Territories ..., Količina 3

Rossiter Worthington Raymond - 1872 - 602 strani
...KWR The cams are of tough cast iron, and usually doable-armed.* The proper curve of the face is the involute of a circle, the radius of which is equal to the distance between the center of the cam-shaft and the center of the stamp-stem. This form keeps the...
Celotni ogled - O knjigi

Statistics of Mines and Mining in the States and Territories West of the ...

United States. Department of the Treasury - 1872 - 602 strani
...RWR The cams are of tough cast iron, and usually double-armed.» The proper curve of the face is the involute of a circle, the radius of which is equal to the distance between the center of the cam-shaft and the center of the stamp-stem. This form keeps the...
Celotni ogled - O knjigi

The Metallurgy of Silver: A Practical Treatise on the Amalgamation, Roasting ...

Manuel Eissler - 1889 - 378 strani
...the face of the cam, in order that it may perform the desired duty with the least friction, is the involute of a circle, the radius of which is equal to the distance between the centre of the cam shaft and the centre of the stamp stem. This produces a line...
Celotni ogled - O knjigi

Practical Gold-mining: A Comprehensive Treatise on the Origin and Occurrence ...

Charles George Warnford Lock - 1889 - 858 strani
...the face of the cam, in order that it may perform the required duty with the least friction, is the involute of a circle the radius of which is equal to the distance between the centre of the camshaft and the centre of the stamp-stem. This produces a line...
Celotni ogled - O knjigi

Machinery for Metalliferous Mines: A Practical Treatise for Mining Engineers ...

Edward Henry Davies - 1894 - 630 strani
...fig. 161. The face of the cam is from 2 in. to 3 in. wide, and the hub 4 in. to 5 in. The true shape of the cam is a modified involute of a circle, the...to the horizontal distance between the axis of the cam shaft and the centre of the stamp stem. The lift varies from 8 in. to ii in., and is generally...
Celotni ogled - O knjigi

A Textbook on Mining Engineering, Količina 6

1900 - 586 strani
...shaft and catching under a tappet fastened to the stamp stem. The curve of the cam is laid off as the involute of a circle the radius of which is equal to the horizontal distance between the centers of the cam shaft and the stamp stem. The curve may be obtained by attaching, to any point a,...
Celotni ogled - O knjigi

International Library of Technology: A Series of Textbooks for ..., Količina 21

1902 - 584 strani
...catching under a Fir.. 13 tappet fastened to the stamp stem. The curve of the cam is laid off as the involute of a circle, the radius of which is equal to the horizontal distance between the centers of the cam shaft and the stamp obtained by attaching to circular disk of the proper diameter...
Celotni ogled - O knjigi




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