US984681A - Forming-machine. - Google Patents

Description

A. G. LIVERMORE.

FORMING MACHINE.

APPLICATION FILED OCT. 6, 190a.

Patented Feb. 21, 11911.

4 SHEETS-SHEET 1.

A. G. LIVERMORE. FORMING MACHINE. APPLICATION FILED OUT. 6, 1906.

984,681. Patented Feb. 21, 1911.

4 SHEETS-SHEET 2.

A. c. LIVTERMOREI.

FORMING MACHINE.

APPLICATION FILED OCT. 6; 1906.

Patented Feb.21, 1911.

4 SHBET8-SHEBT 3.

A. G. LIVERMORE. FORMING MACHINE APPLICATION FILED OUT. 6, 1906.

Patented Feb. 21, 1911.

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Qwi/bmeooeo ARTHUR G. LIVERMORE, OF HOLYOKE, MASSACHUSETTS, ASSIGNOR TO THE AMERICAN THREAD COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

FORMING-MACHIN E.

To all whom it may concern:

Be it known that I, ARTHUR G. LIVER- MORE, a citizen of the United States, residing at Holyoke, Hampden county, Massachusetts, have invented certain new and useful Improvements in Forming-lVIachines, of which the following is a full, clear, and eX- act description.

My invention relates to improvements in machines for forming circular or peripheral surfaces, and also surfaces which are cylindrical or conical, and has for its object to produce a new and improved machine for performing such work rapidly and accurately, and also a machine which will automatically grind a series of articles so that all that shall be necessary will be to feed such articles into the hopper of the machine.

The following is a description of a machine embodying my invention, reference be mg had to the accompanying drawings, in which Figure 1 is a plan View of the machine, Fig. 2 is a side elevation with parts of the table cut away, Fig. 3 is a sectional view on the linea"w, Fig. 2, Fig. 4 is a sectional view on the line y y, Fig. 2, Fig. 5 is a detail showing a springconnection.

Referring more particularly to the drawings, A A are two rotatable shafts carrying pulleys B B and journaled in the bearings C C. These shafts are movable longitudinally and are provided with clamping surfaces D D. E are adjustable collars mounted on the shafts A A to which are connected levers F F pivoted respectively at f. The collar E is connected to its lever F through a connection made yielding by a spring 6, (Fig. 5) so as to compensate for all unequal lengths of the bobbins grasped between the faces D D. The lower ends of these arms are provided with anti-friction rollers G G which travel in the grooves H H of the cams I I. The cams I I are mounted on the cam shaft J, which is caused to slowly revolve by the worm-wheel K. The cam shaft J also carries a cam L against which bears an anti-friction roller M carried by the lever N. This lever is pivoted at N and carries an adjustable counterweight N At the upper end N of the lever N is pivoted a link N to which is con nected a lever 0 having a projection O to which a spring 0 is connected. The lever is pivoted to the stationary arm 0 On the Specification of Letters Patent. Patented Feb, 21, 1911, Application filed October 6, 1906.

Serial No. 337,843.

upper end of the arm 0 is mounted a carrier or trough P, which when depressed is adapted to receive from the hopper Q. the lowermost bobbin R and carry it up into a position where it will be grasped by the ends of the shafts A A. A restraining strip S carried by the trough P holds the next succeeding bobbin within the hopper until the trough is again depressed. 011 the arm 0, to the rear of the trough P, is a guide T, the upper end of which (when the trough is depressed) comes directly beneath the space between the clamping surfaces D D of the shafts A A, so that when a bobbin is released by them it falls upon the guide surface T and is carried to the rear of the machine. The trough P has adjustable guides 22 p which center the bobbin in the trough and prevent it from jarring endwise as the trough moves. Upon the cam shaft J is also mounted a cam U, having a cam groove U within which is the antifriction roller V carried by the bellcrank lever V. This lever V is pivoted at V and has its upper end pivoted at V to a sliding carriage TV, which is normally pressed toward the front of the machine by a compression spring TV. The carriage TV carries trunnions in which is mounted a revolving shaft WV one end of which carries the shaper or grinder 7 This grinder is provided with a suitable surface, and in machines for shaping compressed wood pulp objects, such as machines embodying my invention are now more particularly used for, this surface is formed of carborundum glued or cemented to the surface in any suitable manner, and of such coarseness as may be found most adapted for the particular finish desired. The shaft W carries a pulley Vi over which runs a belt, driving the grinder V. at a rapid rate. The shafts A A are also driven rapidly by belts upon the pulleys B B.

In the operation of the machine bobbins are fed into the hopper Q, being held there by the strip Q, placed over their centers so that they can be delivered only from the lower end of the hopper and into the trough P when the same is depressed. The cams I I are so located relatively to the cams L and U that when the trough P is being lifted so as to bring the bobbin contained therein in line with the axis of the shafts A A, the opposing clamping surfaces D D will be in withdrawn position. The

trough P is held in raised position until the shafts A A are moved together under the influence of the cams I I sufiiciently to engage the bobbin lying between them. Thereupon the trough P, under the influence of the cam L, is withdrawn, and the sliding table IV with the grinding cylinder W is, under the influence of the cam U, moved forward so as to cause the cylinder to come in contact with the bobbin to be shaped. The rapidly revolving surfaces of the grinder coming in contactwith the rapidly revolving bobbin held between the ends of the revolving shafts A A produce F a finished cylindrical surface upon the bobbin of such fineness as may be desired.

By making the grinder of the desired form, various shaped surfaces can be finished. The surfaces finished by the grinder shown in the drawing, are in part cylindrical and in part conical. The surfaces which may be finished, however, are not lim ited to these forms, but may be of various forms.

In order that the bobbins may be properly doffed, I provide doifers D D which are mounted upon the journals C C and doif the bobbin when the spindles are withdrawn.

My invention permits of embodiment in various forms, but the foregoing is the best mode in which I have contemplated applying the principle involved therein.

The machine may be run at a high rate of speed, and, being automatic, requires little attention from the attendant, and one attendant can supervise a number of such machines.

lVhat I claim is:

1. In a forming machine, the combination of a revolving clamp adapted to hold the object to be shaped, a revolving shaper mounted on an axis parallel to the axis of said clamp, means for causing said clamp and said shaper to revolve about their axes, and a continuously rotating cam for moving one of said elements so as to cause said shaper and said object to move into and out said carrier to receive said objects and deliver them to said clamp, means for causing said clamp to grasp said objects, means for bringing said shaper and said objects when so grasped into and out of engagement, and means for causing said clamp to thereupon release said objects.

4%. The combination of a hopper, a carrier adapted to receive articles from said hopper, a revolving clamp to which said carrier delivers said objects, means for causing said clamp to grasp the object so delivered, a revolving shaper having its axis parallel to the axis of the clamp, and means for causing one of said revolving members to move at right angles to its axis of revolution 7 so as to bring the shaper into lateral engage ment and disengagement with said object, and means for causing said clamp to release said object after said disengagement.

In combination, a hopper Q, a carrier I, a cam L adapted to actuate said carrier, revolving clamping members D D to which the carrier delivers objects received from said hopper, cams I I for causing said clamping member to grasp and release said objects, a revolving shaper having its axis parallel to the axis of said clamping members D D, and a cainU adapted to move the axes-of said shaper and clamping members toward and away from one another.

ARTHUR C. LIVERMORE. lVitnesses G. H. MILLER, A. N. LA PORTE.

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