Brainard Milling Machine Co. - Assigned Patents

Manufacturers Index - Brainard Milling Machine Co.

Brainard Milling Machine Co.
Hyde Park, MA, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

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Patent Number	Date	Title	Name	City	Description
110,951	Jan. 17, 1871	Milling Machine	Amos H. Brainard	Hyde Park, MA	Alban Andrew - patent attorney The object of my invention is to provide a simple and convenient back center, or support for one end of arbors, reamers, or .other work required to be supported at each end on Centers, which shall always be in line with the arbor or other work, be the same higher or lower, or inclined to a horizontal line.
111,311	Jan. 31, 1871	Milling Machine	Amos H. Brainard	Hyde Park, MA	Alban Andrew - patent attorney The object of my invention, is to provide a headstock for milling and other machines for cutting straight and conical mills, bevel and spur-gears, and for milling at various angles, &c.
131,733	Oct. 01, 1872	Improvement in Milling Machines	Amos H. Brainard	Hyde Park, MA	Alban AndrÃ©n - patent attorney
169,516	Nov. 02, 1875	Improvement in vises	Amos H. Brainard	Hyde Park, MA	"My invention relates to improvements in bench-vises; and consists of an elastic steel bar of great vertical extension in proportion to its thickness, which is cast in one piece with the base of the movable front jaw, and made to move freely through a corresponding slot in the rear jaw. The movable jaw is operated by means of a rotary screw-sleeve having a bearing in the movable jaw, which screw-sleeve encompasses a stationary screw-threaded shaft secured to the stationary rear jaw... The advantage of the elastic bar c is that it will yield slightly in a horizontal plane, by which I am able to hold and secure slightly-tapering pieces of work firmer than where rigidly-working jaws are used." The inventor disclaims (i.e., acknowledges the primacy of) patent 65,097, granted 8 years previous to J. H. Lewis. The inventor received several patents for milling machines and gear-cutting machines. These machines were made by Brainard Milling Machine Co. of Hyde Park, MA. From Amos H. Brainard's obituary in the Boston Globe in May 1906: He came to Boston from Newburyport, MA as a young man in the early 1840s, and "became the inventor of the Union Vise, and was the founder of the Union Vise Co. in 1866." The Union Vise Co. was destroyed by fire in 1871 and the "rights of manufacture of the vise was sold to another concern." That concerns was the Backus Vise Co., which in 1873 would become part of the newly formed Millers Falls Co. So, at the time this patent was issued the inventor was running the Brainard Milling Machine Co.
255,409	Mar. 28, 1882	Gear-cutting machine	Amos H. Brainard	Hyde Park, MA
310,247	Jan. 06, 1885	Automatic gear-cutting machine	Amos H. Brainard	Hyde Park, MA
		Automatic gear-cutting machine	Zorester B. Coes	Hyde Park, MA
343,980	Jun. 22, 1886	Dividing Engine	Amos H. Brainard	Hyde Park, Norfolk County, MA	James W. See - patent attorney This invention pertains to improvements in centers or heads for use in connection with milling-machines and other machine-tools, such centers or heads being employed in holding the work while it is operated upon, and in dividing the work after the manner of a dividing-engine. Again, I may take a piece of work whose flutes require to be deeply cut and accurately divided. The accuracy of dividing mechanism involves a peculiar delicacy of structure, and also involves a careful protection from rough usage, while a substantial and strong dividing apparatus adapted for continued rough usage involves a freedom from delicacy. Such a piece of work as has been last mentioned would therefore be inaccurately done if the dividing mechanism were of heavy, substantial, and unprotected character, and slowly done if done with delicate dividing mechanism, and at the same time the delicate dividing mechanism will become injured during the heavy operation.In my improved apparatus I may do the heavy cutting of the flutes while the work is under the control of the primary index. This index, though substantial, may still, from frequent use or from indelicate original construction, be not accurate enough for the purpose in hand; but it will be sufficiently accurate for the preliminary heavy cutting, and will not become injured by the severe use. The secondary indexing mechanism can then be made to control the division while the finishing cuts are being made, thus ultimately yielding in heavy work the accuracy due to delicate indexing mechanism without impressing injurious strains upon that delicate mechanism. I claim as my invention 1. In centers or heads for milling-machines or the like, the combination of a rotary spindle and its stock or support, a primary index plate secured to the spindle, a detent engaging said index-plate, and provided with means for locking it out of such engagement, a rotary shaft connected to such spindle by gearing, a secondary detent connected with said shaft, and as provided with means for locking it out of action, and a secondary index-plate adapted to be engaged by said secondary detent, substantially as and for the purpose set forth. 2. In centers or heads for milling-machines or the like, the combination of a rotary spindle, a stock or support for the same, a primary index-plate secured to said spindle, a primary detent fitted to engage such index plate, and provided with means for locking it out of such engagement, a worm-gear fast upon the spindle, a worm-shaft having a worm engaging such worm-gear, and provided with a secondary detent, a secondary index-plate arranged to be engaged by said secondary detent, a housing supporting said worm-shaft and secondary index-plate, and bolts engaging in slots or analogous devices for securing said housing to the spindle supported in a position corresponding to the engaged or disengaged position of the worm-gearing, substantially as and 40 for the purpose set forth. 3. In centers or heads for milling-machines or the like, the combination of a rotary spindle and its stock or support, primary index-plate B, secured to the spindle, and provided with facial index-notches, sliding primary detent F, disposed parallel to the spindle and provided with means for locking it out of engagement with its index-plate, a worm-gear fast upon the spindle, bracket-seat J, housing K, adjustably secured to the bracket-seat, worm L, engaging the worm-gear and having its shaft carried by said housing, crank O, secured to the worm-shaft and provided with secondary detent P, and secondary index-plate E, supported by the housing, substantially as and for the purpose set forth.
367,954	Aug. 09, 1887	Milling Machine	Amos H. Brainard	Hyde Park, Norfolk County, MA
381,108	Apr. 17, 1888	Milling-machine	Amos H. Brainard	Hyde Park, MA
381,525	Apr. 24, 1888	Milling Machine	Amos H. Brainard	Hyde Park, Norfolk County, MA
383,556	May. 29, 1888	Conveyer	Amos H. Brainard	Hyde Park, MA	My improved conveyer handles wrought-iron and steel cuttings with facilityâ€”a result not attained by any rotary conveyer of which I have knowledge."
D35,448	Dec. 17, 1901	Milling Machine Frame	John Becker	Hyde Park, Norfolk County, MA
D35,449	Dec. 17, 1901	Upright for Horizontal Milling Machines	John Becker	Hyde Park, Norfolk County, MA