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US Patent: 434,930
William Houghtaling - Bridgeport, CT

USPTO Classifications:
29/45, 29/47, 82/136, 82/137

Tool Categories:
metalworking machines : metal lathes : turret lathes


Not known to have been produced

Oscar E. Benigo
John H. White

Patent Dates:
Applied: Nov. 11, 1889
Granted: Aug. 26, 1890

Patent Pictures:
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"My invention relates to that class of machinery commonly known as 'screw-machines,' a form of lathe in which the work is held in a chuck and operated upon by various tools fixed in a rotary turret mounted on a carriage sliding in the bed of the machine in line with the axis of the spindle which carries the chuck, and also by tools fixed in tool-posts carried by a second carriage sliding at right angles to the first. ... The essence of my invention rests in combining with the carriage a screw-feed of peculiar construction capable of being thrown instantly out of action, and an independent feed for imparting a longer and more rapid movement..."

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