US767831A

US767831A - Shot-making machinery.

Info

Publication number: US767831A
Application number: US17074703A
Authority: US
Inventors: Walter Henry Pearson; William Peters
Original assignee: Individual
Current assignee: Individual
Priority date: 1903-08-25
Filing date: 1903-08-25
Publication date: 1904-08-16
Anticipated expiration: 1921-08-16

Description

No. 767,831 v PATENTED AUG$16,190.4

W. H. PEARSON; W. PETERS.

SHOT MAKING MACHINERY. APPLICATION FILED AUG.25; 1903.

N0 MODE-L.

UNITED STATES Patented August 16, 1904.

PATENT OFFICE;

WALTER HENRY PEARSON AND "W IL LIAM PETERS, OF DUNEDIN, NEW

ZEALAND.

SHOT-MAKING MACHINERY.

I SPECIFICATION forming part of Letters Patent No. 767,831, dated August 16, 1904.

Application filed August 25, 1905- To a, 1071,0111 it may concern.-

Be it known that we, \VAL'ruR H ENRY PEAR- soN, gentleman, and WILLIAu Ps'ruas, store manager, both of L9 Moray Place, in the city of Dunedin, in the British Colony of New Zealand, and both subjects'of the King of Great Britain, have invented certain new and useful Improved, Shot-Making Machinery, of which the following is a specification.

The object of this machinery is to produce shot of the various sizes needed from cold sheet or scrap lead that is cut into cubes about the diameter of the required shot. These cubes are formed by passing sheetlead through cutting-rollers into strips the width and thickne'ss of the required shot and either cross-cutting these stripswith the same or'a duplicate set of cutting-rolls or else passing the strips through rolls which have semiglobular rec'esses coinciding in each, which form blanks resembling part1 y-rounded cubes. The cubes or blanks are then fed to the rolling-machine, which consists of two d isks preferably revolving in opposite directions. These are adjusted apart at the center where the blanksare fed to allow them to get between the disks, while they become closer toward the rim or delivery part, so that the blanks are squeezed and rolled to spherical shot, which can be rumbled, if desired. The center parts maybe left roughened or nicked to grip the blanks; but the rest of the surfaces are polished to make the shot smooth. This process hardens the shot considerably, producing very hard and even shot.

In the drawing is shown a sectional elevation of a machine constructed in accordance with this invention.

A is a disk somewhat and preferably saucershaped, though it is very obvious that the exact shape could be indefinitely varied for obtaining the same result that of grinding and ro'llingthe cubes or shot blanks between it and the disk B. These disks'revolve in opposite directions, though a similar but less perfect result would occur if one revolved only or if both revolved in the same direction, but at Serial No.. 170,747. (No modal.)

var ing speeds. The blanks are fed at A, which enlarges to prevent choking. These fall on B and are at once centrifugally driven outward and gripped between the disks, which are slightly roughened where the grip begins,

but polished toward the delivery orrim. These disks areadjustable at C by any such device as the center C and collar 0, so that differentsized shot can be made with one set of disks. The rolled shot fall into the circular pan D, which may have several outlets D, or the shot may be brushed to l) by a brush fixed to B, but not shown. I

E is the feeding-funnel, and, if desired, a tine rod may extend from its lower edge .through the hollow of A to further prevent the blanks sticking, though this is not usually needed.

F and F are the driving-belts.

(1: represents rollers having semiglobular recesses round the rim in rows so closely together that the edge between each recess is sharp. This squeezes and cuts off blanks from strips or wire which are fed by aguiding-tube to the rolls. 'lThough one row and tube is shown, obviously more would be placed on the one pair of spindles.

Having now described our invention, which may be made of any convenient size and of any suitable materials, what we claim, and desire a patent of the United States of America for, is- I In a machine of the class described, a pair of shot-rolling disks arranged onejabove the other, the upper disk having a central tubular extension rising therefrom through which the shot is, introduced, and Ldriving member for rotating the upper disk,-carried by said tubular extension.

In testimony whereof we have hereunto affixed our names and set our hands in the presence of two subscribing witnesses.

WAL'lER HENRY PEARSON. WILLIAM PETERS.-

Witnesses:

HnN'roN MAGAULAY DAVEY, ELIZABETH ANN DAVEY.