Patent for a new and improved valve. This design consists in "[t]he improved valve comprising the casing, having a horizontal passage reduced at its central point . . . and a vertical bore intersecting said reduced portion above the point of intersection to its lower end and being screw-threaded its entire length, a stem having a tapered lower portion, the entire stem being screw-threaded to engage the threads in the bore, and a plug removably inserted in the lower end of the bore" (lines 1-11).
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Description
Patent for a new and improved valve. This design consists in "[t]he improved valve comprising the casing, having a horizontal passage reduced at its central point . . . and a vertical bore intersecting said reduced portion above the point of intersection to its lower end and being screw-threaded its entire length, a stem having a tapered lower portion, the entire stem being screw-threaded to engage the threads in the bore, and a plug removably inserted in the lower end of the bore" (lines 1-11).
Physical Description
[2], 1 p. : ill. ; 23 cm.
Notes
"SPECIFICATION forming part of Letters Patent No. 409,031, dated August 13, 1889. Application filed January 26, 1889. Serial No. 297,630. (No model.)"