US496722A - Spring-setting machine - Google Patents

Description

2 SheetS -Sheet 1.

(No Model.)

B. CLIFF. SPRING SETTING MACHINE.

No. 496,722. Patented May 2, 1893.

WITNES-ISES: g INVENTOR:

" ATTORNEYS.

(No Model.)

2 Sheets-Sheet2. Y E. CLIFF. SPRING SETTING MACHINE.

' Patented May 2, 1-893 INVENTORI WITNESSES. of @WW J/ m m A ATTOR-N EYS;

UNITED STATES PATENT OFFICE.

EDW'ARD CLIFF, OF NEWARK, NEWV JERSEY.

SPRING-SETTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 496,722, dated May 2, 1893.

Application filed October 1, 1892.

To all whom it may concern:

Be it known that I, EDWARD CLIFF, of Newark, in the county of Essex, in the State of New Jersey, have invented new and useful Improvements in Spring-Setting Machines, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

In the manufacture of helical springs they are usually of excessive height when taken from the mandrel upon which they are wound and formed.

The purpose of this invention is to compress and set said springs to the required normal heights. And to that end the invention consists in the improved construction and combination of the component parts of the spring setting machine hereinafter fully described and set forth in the claims.

In the accompanying drawings Figure 1 is a side elevation of a machine embodying my invention. Fig. 2 is an end elevation of the same. Fig. 3 is a vertical transverse section on line as, 00, in Fig. 1. Fig. 4 is a plan view of the machine. Fig. 5 is a vertical transverse section on line y, y, in Fig. 4, and Fig. 6 is a vertical longitudinal section on line 2, 2,. in Fig. 4..

Similar letters of reference indicate corresponding parts.

A- represents a horizontally elongated stout frame consisting essentially of two sideplates firmly secured at one end to opposite sides of the standard A'-=- and at the opposite end to a transverse plate A. Said side-plates are thus sustained a proper distance apart to accommodate between them the gears, pinions, &c., hereinafter described. The standard -A'- is formed with the passage -B extending horizontally through it, and in said passage is seated the plunger F. Across the opposite end of the frame -A- is the main driving shaft 0tjournaled in bearings in the side-plates of the frame and having secured to one or both ends the drivin g pulley or pulleys O and balance-wheel or wheels O. Between the aforesaid sideplates are pinions N--N- fastened to the shaft a and meshing with large gearwheels N'N attached to a counter-shaft -a which is parallel with the main shaft --aand mounted in suitable bearings in Serial No. 447,467. (No model.)

the side plates of the frame. On the countershaft is also secured an eccentric -e to which is connected the pitman --L- by the usual eccentric strap. The opposite end of said pitman is connected to the plunger -F which thereby receives a reciprocating motion, the speed of which is considerably reduced by the large gear-wheels N'-N' transmitting motion from the small pinions -NN to the counter shaft -a'.

Opposite the plunger is the abutment C a proper distance therefrom to receive be-- tween them the helical spring swhich is to be disposed axially parallel with the plunger and receive from opposite ends the pressure of the plunger and the abutment. This abutment I prefer to cushion by means of a suitable spring the resistance of which is 'ad justable so as to guard against excessive pressure of the plunger. For this purpose I mount the abutment longitudinally movable in a recess R- formed in a standard --P. The abutment O- is formed with a cavity --C'- in the end farthest from the plunger, and in said cavity is seated" a stout helical spring D-- which bears with its opposite ends against the rear or inner side of the abutment and against the opposite end-wall of the recess,R. Thiswallis formedwithanutI- which is axially in line with the aforesaid cavity, and through said nut passes a screw -S-, the inner end of which is connected to the abutment -C-=- preferably by a swivel which allows the screw to turn freely on the abutment. By turning the said screw the abutment is caused to move longitudinally to compress the spring D to a greater or less degree and thus impart the desired degree of resistance to the abutment.

To facilitate the operation of feeding to the testing machine the springs to be tested,Iinterpose between the abutment -O and plunger -F, a vertically revoluble holder b provided in its periphery with a series of recessed seats -b-b= for the reception of the springs to be set. form of a wheel mounted 011 a shaft parallel with the axis of the plunger. The periphery of which wheel is, formed with the recesses -b--bin which the helical springs -sare laid horizontally. Said wheel is to be turned intermittently to carry the springs Said holder is of the successively to a proper position between the abutment and plunger to receive the testing pressure therefrom. In the subsequent movement of the revoluble holder or wheel b, the tested spring drops automatically therefrom. I prefer to cause the said wheel to turn automatically and for that purpose I fasten to the sides of the shaft -b of said wheel two sets of tappets cc disposed diagonally on the shaft, and to the plunger F I attach a rod dwhich is parallel with the aforesaid shaft and has affixed to it a wing f. The rod dreciprocating with the plunger engages alternately one of the tappets of each set and thereby causes the shaft b" to turn intermittently. To further facilitate the feeding of the springs to the machine I employ a trough or way twhich is inclined to the wheel or holder -13- and guides the springs which roll by gravity to the said holder and drop into the recesses Z) thereof.

Having described my invention, What I claim as new,and desire to secure by Letters Patent, is-

1. In combination with the abutment and v plunger, a revoluble holder for the springs to be set interposed between said abutment and shaft and meshing with the aforesaid pinions,

the eccentric eon the same counter shaft, the pitman L connecting the eccentric with the plunger, the standard P opposite said plunger, and the spring-cushioned abutment C in said standard, substantially as described and shown.

In testimony whereof I have hereunto signed my name this 20th day of September, 1892.

EDWARD CLIFF. n S

Witnesses:

FRED C. ARTOPOEUS, R. G. REYNOLDS.

Images