John BROOKS: Patents (1866-1907)

Be it known that I, JOHN BROOKS, of North Bridgewater, in the county of Plymouth and State of Massachusetts, have made a new and useful or Improved Welt-Trimmer for the use of Shoemakers...

Be it known that we, CHARLES F. SYLVESTER and JOHN BROOKS, of North Bridgewater, in the county of Plymouth and State of Massachusetts, have invented an Improved Reaming-Tool or Mechanism...

Be it known that I, JOHN BROOKS, of North Bridgewater, in the county of Plymouth and State of Massachusetts, have invented an Improvement in Machines for Turning Sewing-Machine-Needle Blanks, &c.; and I do hereby declare that the following, taken in connection with the drawing which accompanies and forms a part of this specification, is a description of my invention sufficient to enable those skilled in the art to practice it.

The invention relates to details of construction and arrangement of mechanism for turning the blanks for sewing-machine needles, and particularly to an arrangement of the wire-griping, feeding, and reducing devices, by which their successive operations are automatic.

Be it known that I, JOHN BROOKS, of Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Disk Cutters, of which the following is a specification.

This invention relates to cutters such as those used in leather-skiving machines, and particularly in the so-called "Amazeen" skiver, the cutter being a disk of metal flat on one side and beveled at its marginal portion on the other, the intersection of the flat and beveled sides forming a circular cutting edge. This cutting edge has usually been continuous—that is to say, forming an uninterrupted circle around the entire periphery of the disk. It has been found that a continuous cutting edge leaves something to be desired in point of rapidity of operation, the cutting action being undesirably slow. It has been proposed to remedy this objection by forming radial grooves or corrugations in the flat side of the cutter, the corrugations extending to and through the cutting edge and interrupting its continuity, leaving said edge somewhat serrated. While this formation increases the rapidity of the cutting action, it causes a further objection—namely, creation of dust, its action being to tear or rake from the material a large number of small particles, which are scattered by the rotation of the cutter.

My invention has for its object to overcome each of the objections above referred to; and to this end it consists in a disk cutter having in its flat side a series of grooves which are tangentially arranged—that is to say, at a tangent to a circle within the periphery of the cutter—said grooves extending to and through the cutting edge and interrupting the continuity of the latter, the angle at which the outer portions of the grooves therefore constitute slots which are formed enabling the cutter to act without creating dust to any objectionable extent.

Be it known that I, JOHN BROOKS, of Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Disk Cutters, of which the following is a specification.

This invention relates to disk or circular cutters such as are employed in leather-skiving machines; and it has for its object to provide a disk cutter having a continuous circular edge at a reduced expense for labor and material in comparison with disk cutters as heretofore made, and, further, to provide a disk cutter of improved quality and durability.

Be it known that I, JOHN BROOKS, of Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Disk-Knife Holders, of which the following is a specification.

This invention relates especially to skiving machines, and consists of a holder by which the disk knife of such a machine may be secured and accurately centered so that it will not work loose and give way while in use.

The circular disk knives which are used for skiving frequently become somewhat distorted during the hardening and tempering so that the holes or eyes by which they are centered on the holding spindle lose their true circular shape and become distorted. Thus after hardening they will not fit an arbor upon which they may have accurately fitted before this operation. Consequently it has usually been the practice hitherto to make the eyes of such knives sufficiently large before hardening so that after they have been hardened the eyes will still be large enough to fit over the bushings or arbors made for them. As a result of course there was always a certain amount of looseness which interfered with the proper grinding of the cutters and allowed them to slip and fail to work properly.

It is my present object to provide a rotary holder which will automatically center the disk, whatever may be the size and shape of the distorted central hole, so that there will be no opportunity for it to slip and vibrate laterally. Accordingly I provide the holder constructed as hereinafter described and claimed and substantially as shown in the drawings.