 | Perry Fairfax Nursey - 1841 - 538 Seiten
...screw threads which form the subject of this paper, are those of bolts and screws, used in fitting up steam engines and other machinery. Great inconvenience...of system. Take for example the refitting shop of a Railway or Steam Packet Company. Here the variety of apparatus rendered necessary by the want of uniformity... | |
 | 1842 - 886 Seiten
...imperfect. The difficulty of ascertaining the exact pitch of a particular thread, especially Avhen it is not a submultiple of the common inch measure,...evils, and must ultimately lead to a change of system. Were an uniform system adopted for marine or locomotive engines, there can be no doubt that it would... | |
 | 1842 - 934 Seiten
...be completely obviated by uniformity of system, the thread becoming constant for a given diam6ter. The same principle would supersede the costly variety...evils, and must ultimately lead to a change of system. Were an uniform system adopted for marine or locomotive engines, there can be no doubt that it would... | |
 | Joseph Whitworth - 1858 - 234 Seiten
...difficulty of ascertaining the exact pitch of a particular thread, especially when it is not a multiple or submultiple of the common inch measure, occasions...system.* Take, for example, the refitting shop of a railway or steam packet company. Here the variety of apparatus rendered necessary by the want of uniformity... | |
 | Thomas P. Pemberton - 1882 - 144 Seiten
...difficulty of ascertaining the exact pitch of a particular thread, especially when it is not a multiple or submultiple of the common inch measure, occasions...these evils, and must, ultimately, lead to a change of system.t Take, for example, the refitting shop of a railway or steam packet company. Here the variety... | |
 | Britannia company - 1892 - 330 Seiten
...The screw-threads which form the subject of this paper are those of bolts and screws used in fitting up steam engines and other machinery. Great inconvenience...system. Take, for example, the re-fitting shop of a railway or steam packet company. Here the variety of apparatus rendered necessary by the want of uniformity... | |
 | 1926 - 576 Seiten
...screwing apparatus now in use, and, further, it would remove beyond doubt the confusion and delays occasioned thereby. It would also prevent the waste of bolts and nuts which is now unavoidable. The i7iipulse given to the manufacture of locomotives and general mechanical apparatus during recent years,... | |
 | Joseph Whitworth - 1882 - 154 Seiten
...The Screw Threads which form the subject of this paper are those of Bolts and Screws used in fitting up Steam Engines and other machinery. Great inconvenience...system. Take, for example, the refitting shop of a Railway or Steam Packet Company. Here the variety of apparatus rendered necessary by the want of uniformity... | |
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... machinery. Great inconvenience is found to arise from the variety of threads adopted by different manufacturers. The general provision for repairs is rendered at once expensive and imperfect. The difficulty of ascertaining the exact pitch of a particular... 