US54310A - Improved machine for rolling, shaping, and forging file-blanks, fliers - Google Patents

Description

NrrED l STATES? PATENT OFFICE..

JAMES DODGE, OF WATERFORD, NEW YORK.

IMPROVED MACHINE FOR ROLLING, SHAPING, AND FORGING FILE-BLANKS, FLIERS, AND OTHER ME- TALLIC ARTICLES OF SMALL DIMENSIONS.

Specilication forming part of Letters Patent No. 511,310, dated May 1, 1866.

To all whom it may concern.:

Be it known that I, JAMES DODGE, of Waterford, in the county of Saratoga and State of New York, but now temporarily residing at Manchester, in the county of Lancaster, Great Britain, have invented certain new and useful Improvements in Apparatus for Rollin g, Shaping, and Forging File Blanks, Fliers, and other Metallic Articles of Small Dimensions; and- I hereby declarey that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings.

The invention relates to machinery for rolling irregular forms, for which Letters Patent of vthe United States were issued to me on the 25th day of July, 1865, being a novel construction of self-acting mechanism for rolling and forging small articles of metal, so arranged that the various operations may be eiiected in one machine.

The improvements consist in the combination and use of a pair of rollers with dies or matrices, when required, (for rolling the metal,) and a pair of jaws or levers for forging. The lower roller is furnished with tappets or lifters which act upon the movable lever or jaw ofthe pair of jaws for forging or pressing the metal, the whole being operated by gearing. The power is communicated to the rolls by means of a clutch box having -steel faced clutches and worked by levers actuated by a y treadle. The upper roller is furnished with a swell or cam, which, at a certain part of the revolution, lifts a bolt that raises the clutchboX lever and throws the clutch out of gear, and simultaneously a projection on the same roller comes into contact with a short arm or stop, and effects the instantaneous stoppage of the rollers. This takes place at every entire revolution of the rollers, so that the attendant has sufficient time to adjust the metal and to place it properly under the rollers or jaws.

The operator places his foot on the treadle and withdraws the short arm and bolt. The latter releases a spring which forces the clutch box into gear and starts the machine.

The second part of my invention relates to a novel method of regulating the distance between the rollers; and it consists in the use of two wedges which are inserted in the pedestals above the bearings of the top roller, and

are moved nearer to or farther from each other by a right-and-left-handed screw, which is provided with a collar that is held by snugs in a central block. By turning this screw the wedges are moved and increase or decrease the distance between the rolls. The steps of the top roller are held up so as to bear against the wedges by means of springs inserted be tween the steps ot' the rollers.

In order that the invention may be better understood and explained in detail, I have hereunto attached sheets of' drawings made upon a scale of about three inches to the foot, similar letters of reference being marked upon corresponding parts on all gures.

Fi gurel represents an elevation viewed from the left-hand side of the rolling-machine, showing the peculiar arrangement and construction of the apparatus in connection with the clutch-box for starting and stopping such machine. Fig. 2 represents a front elevation of the apparatus, showing more particularly the position of the rollers, with dies or matrices formed therein for rolling the metal, and the pair of jaws or levers, also supplied with dies or matrices for forging. Fig. 3 represents an elevation viewed from the righthand side of the machine, illustrating more clearly the jaws or levers for forging, and also the arrangement of mechanism for actuating the same;

and Fig. el represents an arrangement of tappets for actuating the under jaw in place of the eccentrics. e

In Figs. 1, 2, 3, and 4, a a is the framing of the machine supporting the rollers b and b. The top roller, b', is capable of being raised from or lowered nearer to the bottom roller, b, (according to the thickness of metal required to be operated upon,) by the wedges c c and springs d d, which,being inserted between the bearings of the two rollers, have a tendency to raise the top roller, b', the distance between such rollers being regulated by the counter action of the Wedges c c, which are moved nearer to or farther from each other by a right-and-lefthanded screw, e, which is provided with a collar, j', which is held by the snug-s g g in a central block, so that by turning the screws c the wedges are moved and increase or decrease the distance between the rollers. The top box Zinto gear and starts the machine.

roller, b', is furnished with a swell or cam, h,

which, at a certain part of the revolution, lifts the bolt z', which raises the lever k in connection therewith and actuates the clutch-box l, which is furnished with steel clutches, thereby ihrowin g such steel clutches out of gear. Simultaneously the projection m on the roller b comes into contact with the short arm or stop n secured on the bellcrank lever o, and thus effects the instantaneous stoppage of the rollers b and b', which stoppage is effected at every entire revolution of the rollers, thereby giving the attendant sufcient time to adjust the metal to be operated upon under the rollers or jaws; and it will be evident that by adding 4lifts or cams the rollers may be stopped more frequently than once every revolution.

When ready to start the operator places his foot on the treadle 19, which immediately withdraws the short arm or stop n and` the bolt i.: The latter releases the spring 9, which forces;

(through the medium of the lever k) the clutch- The movement or action of the under lever or jaw employed for forging blanks, in conjunction with the fixed top jaws, s, is obtained by means of the eccentric t secured on the pinion or drivin g-shaft u. (Seen in Fig. l.) The rollers Z and b and the pair of jaws r and s are provided with dies or matrices to suit the different form and shape of the le-blanks -or other metallic articles required.

The grooves 1,2, and 3 in the rollers and the recesses in the jaws exhibit the form of matrices employed for rolling and forging round, half-round, and angular file-blanks, and are shown as examples. The movement of this 'lower jaw mayalso be effected by means of a cam or tappets, if preferred, as seen in Fig. 4.

Having now described the nature of the said invention, together with the method of carrying the same into practical effect, I Wish it to be distinctly understood that I claim- 1,. The novel combination,in one machine, of

lone or more pairs of jaws or levers containing ldescribed or by other mechanical equivalents.

`3. The combination and use of -the wedges and springs, constructed and arranged asdescribed, for regulating the distance of the rollers.

4. The general construction, arrangement, and combination of the apparatus for rolling, shaping, and forging file blanks, fliers, and other metallic articles of small dimensions, as hereinbefore described.

In testimony whereof I have signed my name to this .specification before two subscribing witnesses.

JAMES DODGE.

Witnesses:

EDWARD CLAY, J AMES DAVENPORT.

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