US1421566A - Machine for making springs - Google Patents

Description

R. D REESE. MACHINE FOR MAKING SPRINGS. APPLICATION' FILED AUG. 18, 1920.

,566. Patented July 4, 1 2 I I E 51 4 um M LIME (I fi 93F M I K WIT/VESSES- INVENTOR R D Reese,

ATTORNEYS rarest" @FFHQE.

REESE D. REESE, OF VIRGINIA, MINNESOTA.

enace.

Specification of Letters Patent.

Patented July 4t, 1922.

Application filed August 18, 1920. Serial No. 404,404.

T 0 all whom it may concern Be it known that I, REEsE D. REEsE, a citizen of the United States, and a resident of Virginia, in the county of St. Louis and State of Minnesota, have made certain new and useful Improvements in Machines. for Making Springs, of which the following is a specification.

My invention is an improvement in machines for making springs, and has for its object to provide a machine of the character specified, especially adapted for making springs for use in the Sullivan jack hammer drills.

In the drawing Figure 1 is a side view of the improved machine;

Figure 2 is a top plan view;

Figure 3 is a section on the line 3-3 of Fig. 1;

Figure 4 is a diagrammatic view showing the first step in the formation of the spring;

Figure 5 is a similar view showing other steps;

Figure 6 is a detail perspective view of the pin employed in conjunction with the series of openings in the disk.

In the present embodiment of the invention a suitable base plate 1 is provided, having one end provided with an angular extension or lug 2, whereby the base is adapted to be secured in position upon an anvil block. A shaft 3 is journaled in the plate, near the last named end, and this shaft is held from downward movement with respect to the plate by means of a collar 4; connected to the shaft in any suitable or desired manner above the base.

The upper end of the shaft is forked, and the arms 5 of the fork carry a circular plate or disk 6, provided near its periphery with an annular series of openings 7. Below the base a crank 8 is connected to the shaft, the crank being keyed to the shaft by a key 9.

A headed pin 10 is arranged at the center of the disk 6 passing through a central opening in the disk, and this pin is held in place in the disk by a key 11 which extends transversely of the pin. One of the openings 7 is adapted to be engaged by a pin 12, and the pin is notched intermediate its ends, to receive the edge of the opening, so that it will not be easily displaced.

In operation, the wire indicated at 13 from which the spring is to be formed, is provided at each end with a loop or eye 14:. The spring so arranged is placed in the machine by engaging one of the loops or eyes 14 with the headed pin 10 after the wire has first been heated. It will be understood that the key 11 is removable to permit the engagement of the loop or eye with the pin 10 and after the pin has been engaged with the loop it is replaced in the disk and keyed in place.

lVith the spring engaged with the pin 10 the crank is first turned a half turn. Suitable spacing means such as a semi-annular or semi-circular plate or shim may then be as sociated with the spring. After the spacing means has been so associated the crank is then turned a full circle making a full circle in the spring around the spacing means. Another semi-circular or semi-annular plate or shim may then be associated with the spring to act as another spacing-means and then the crank is given another full turn to form another turn or convolution in the spring and thus complete the formation of a coil at the end of the sprin In Figure 1 at 15 there is shown an attachment for permitting the spring to be made to hold dolls for Lanier drill Sharpeners.

I claim 1. A machine of the character described comprising a base plate, a shaft journaled vertically in the said plate and provided at its lower end with a detachable crank, said shaft being forked at its upper end, a disk supported by the arms of the fork substantially parallel with the plate, said disk having a central opening, and a headed pin passing through the opening, said pin having a transverse slot below the plate, and a key engaging the slot, said disk having an annular series of openings near its periphery, and a pin for engaging one of the openings.

2. A machine of the character described, comprising a base plate, a shaft journaled vertically in the said plate and provided at its lower end with a detachable crank, said shaft being forked at its upper end, a disk supported by the arms of the fork substantially parallel with the plate, said disk having a central opening, and a headed pin passing through the opening, said pin having a transverse slot below the plate, and a key engaging the slot.

3. A machine of the character specified. comprising a shaft forked at one end, and having a disk supported by the fork in a plane at right angles to the axis of the shaft, comprising a shaft forked at one end, and means for turning the shaft, and a headed havingadlsk supported by thefork inaplane pin detachably connected With the disk at at right angles to the axis of the shaft, means 10 the center thereof, said disk having an annufor turning the shaft,'and a headed pin de- 5 lar series of openings near its periphery, and tachably connected with the disk at the cena pin for engaging one of the openings. ter thereof.

4. A machine of the character specified, REESE D. REESE.

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