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Title: |
1849 Article-George B. Hartson, Drilling Machine |
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Source: |
Scientific American, V 4 #2, 10 Feb 1849, pg. 161 |
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Insert Date: |
11/4/2014 1:52:48 PM |
This beautiful form of a new drilling machine got up and constructed by Mr. G. B. Hartson, No. 42 Gold St., this city. It is designed for the drilling of large castings or heavy articles, and it combines in one frame both the table and drill.
Fig. 1, is a side elevation and fig. 2, a front view. The same letters of reference indicate like parts on both figures. A, is the frame, designed in pure Grecian style. R, is the collar through which the spindle E, of the chisel feeds. Attention must be paid to both figures. B, is a screw cut on the collar of the spindle E. D C, are bevel gearings to revolve the spindle and consequently the chisel I. T, is a support of the pulley shafts whereby motion is communicated from L to S, by the band which thus drives D C, and gives the spindle a rotary or drilling motion. The gear which feeds the spindle down is a band from S, to the pulley F, on the axle of which is a worm, which meshes into the large thread wheel through which passes B, as seen in fig.2. Every revolution of the worm moves the thread wheel one tooth, so that its motion of feeding is comparatively slow. M, is the table on which the work to be drilled is placed. It is made to be moved round on vertical axles and to be raised and lowered by the screw K, secured to the bottom of the table and working up and down in the pillar nut P, operated by the wheel handle I. When the hole is drilled the desired depth, there is a handle, which is not seen in the engraving, for unshipping the worm with the nut wheel, and running up the spindle and chisel by the wheel handle B. All the parts of this drilling machine are very simple, of a beautiful pattern and of the best materials. Mr. Hartson makes only the first quality of tools, and we are glad to know that his efforts in the production of machines that confer honor to the machine shop, are appreciated. Good tools are always the cheapest in the end. A few years ago our mechanics used to think that any kind of tools, shafting, &c, it made no matter how they looked so as they moved, were good enough. A better spirit and taste is abroad, and much pride is now being exhibited to fit up the machine shop with good and tasteful tools. Mr. Hartson is doing much to propagate and cultivate this taste, alike creditable to him and those who admire his spirit. |
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1849 George B. Hartson, Drilling Machine
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