File:Scientific American Volume 47 Number 13 (September 1882) (1882) (14578201358).jpg

Identifier: scientific-american-1882-09-23 (find matches)
Title: Scientific American Volume 47 Number 13 (September 1882)
Year: 1882 (1880s)
Authors:
Subjects: patented scientific patent steam improved american water seed scientific american large electric lighting american institute patented improvements large number sewing machine guide plate letters patent postage stamp years ago
Publisher:

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
e two se-ries of whirrs shown onthe face or front view. As the bobbins fillup and increase theirdiameters, a cam,shown plainly in theengraving on the front,that makes one com-plete revolution inonce filling—or foronce doffing—changes HILLS IMPROVED BOILER. will double, and more, the capacity of this spinning frame.The machine is an evident improvement on anything now inuse for producing either tilling or warp yarn of woolen forcarpet or other purposes.The inventor is Philip Townson, of Thompsonville, Conn. Utilization of Smoke. At Elk Rapids, Mich., is a blast furnace, in which aremanufactured 50 tons of charcoal iron per day. There are25 charcoal pits, constructed of brick. Each pit is filledwith 100 cords of hard wood and then fired. The vastamount of smoke from these pits, which was formerly lostin the air, has now been utilized by Dr. Pierce. Chemicalworks have been erected, which are thus described by theBoston Courier: First, they have a circular tube made of wood, with pine
Text Appearing After Image:
staves, 16 feet in length, bound together with heavy ironhoops. This tube is placed directly over the pits in a hori-zontal position, with an opening from each pit into the tube.At the end nearest the building there is a large drum con-taining a rotary fan propelled by machinery, the power ofwhich is gas. That acts as a suction or draught for thesmoke, which is conveyed into five stills filled with copperpipe, 2)4 inches in diameter. The boxes in which the pipesare situated are 20 feet square, 8 feet deep, made of heavypine, and filled with cold water; these are all connected bycopper pipes; they are connected with the main still, 100feet in length, 10 feet wide, 8 feet deep, filled with copperpipes, %% inches in diameter, in a horizontal position, sur-rounded with cold water; from this conveyed to a purifier,from which runs what is calledpyroligneous acid, which is asclear as amber, with an unpleas-ant odor. From the acid is pro-duced, first, acetate lime; sec-ond, alcohol; third, ta

Note About Images