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Title: |
1881 Article - Demas No. 4 lathe |
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Source: |
September 1881 "Manufacturer & Builder", Vol 13 no. 9, p. 201 |
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Insert Date: |
10/14/2005 9:25:11 PM |
Article text:
Demas Lathe and Universal Slide Rest
In continuation of our previous reference to the excellent wood and metal working tools manufactured by A. H. Shipman, of Rochester, N. Y., we place before our readers the following additional description of specialties for which this establishment is noted. Fig. 1 represents the "Demas Lathe No. 4," a practical lathe for metal and wood, designed expressly for machinists, carpenters, cabinet-makers, dentists, pattern-makers, makers of honey-boxes, and others. It is well adapted for heavy, practical work, and, with its attachments, has proved itself to be an excellent machine, equally useful in the amateur's home or in the practical workshop. It can be run with steam if desired and in construction and action is so simple that the most inexperienced can speedily master it. It is adapted for a great variety of work, chasing the smallest screw or turnino a pulley from 1/2 inch to 6 inches in diameter; and with its back gear and universal slide rest it makes a very complete machinist's tool.
It is especially recommended by its maker for woodworkers' uses, the claim being made in its behalf, that, with its sawing attachments, which can readily be adjusted when required, it is capable of executing an unlimited variety of work.
The lathe is sufficiently large and powerful to turn table legs or moldings 10 inches in diameter. The scroll saw will cut with ease 3 inches and swing in the clear 24 inches. Its table will tilt for inlaying or sawing on the angle. The buzz saw will cut 1 1/2 inches, or 3 inches by turning the piece over. The table is adjustable up and down, and has ripping and cross-cut slides. This lathe is built entirely of iron and steel, except the treadle, which is of ash. Height of lathe bed from floor, 34 1/2 inches; to centers, 39 1/2 inches. Diameter of balance-wheel, 21 inches; weight, 50 pounds; it is attached to the shaft inside of the bearing, and the treadle connected to the shaft outside of the bearings and at both ends. The ways to lathe-bed are nicely planed up and head and tail block milled to fit. The spindle in the head block is made from 1/4-inch steel; the boxes are adjustable, so as to take up any lost motion that may occur from continued wearing. The centers are fitted with taper shank. The cone pulley on the spindle is nicely turned up, and has two lifts the same as on the large balance wheel, and speed can be varied from 100 to 2,000. Greatest distance between centers, 30 inches; distance from centers to ways, 5 inches. Full weight of lathe, 130 pounds.
Fig. 2 is a representation of the universal slide rest, an iron turning attachment designed to be used with the Demas Lathe No. 4, just described. It is intended for turning up pulleys, small pieces of castings, and short lengths of shafting; it is nicely fitted up, and the maker guarantees that it will execute work in the most satisfactory mammner. Capacity of cross feed, 2 inches; homizontal feed, 5 1/2 inches. It can be attached to the lathe bed so as to face off any sized pulley that can be chucked in the lathe, and it can be attached to any lathe. Weight of slide, 15 pounds. |
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Figure 1. Demas lathe No. 4
Figure 2. Universal slide rest
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