Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 223
which the needle passes, and this little cylinder hasa collar, serving to retain its position, an india-rubber ring surrounding aportion of the cylinder, and foiming a plug to effectually close the rear endof the barrel. It will be noticed that the cylinder is continued by a smallerprojection,… … I)
Inventions
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