US425131A - corscaden - Google Patents

Description

(No Mod1. a Sheets-Sheet 1.

G. E. HART & T, GORSCADEN.

GAGE FOR PRESS SLIDES.

No. 425,131. Patented Apr. 8, 1890.

(N9 Model.) 3 Sheets-Sheet 2..

0. B. HART & T. GORSGADEN.

' GAGE FOR PRESS SLIDBS.

No. 425,131. Patented Apr. 8, 1890.

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Illii aKWa/MQ 2 m (No Modl.) a Sheets-Shet a. G. E. HART 81; T. CORSGADEN.

GAGE FOR PRESS SLIDES.

No. 425,131. Patented Apr. 8, 1890.

utllluw UNITED STATES PATENT" OFFICE.

CHARLES E. HART AND THOMAS CORSCADEN, OF NEIV BRITAIN, CONNECTI- CUT, ASSIGNORS TO THE STANLEY ORKS, OF SAME PLACE.

GAGE FOR PRESS-SLIDES.

SPECIFICATION forming part of Letters Patent No. 425,131, dated April 8, 1890.

Application filed January 3, 1890. Serial No. 335,784. (No model.)

To all whom it may concern:

Be it known that we, CHARLES E. HART and THOMAS CORSOADEN, both citizens of the United States, residing at New Britain, in the 5 county of Hartford and State of Connecticut,

have invented certain new and useful Improvements in Gages for Press-Dies, of which the following is a specification.

Our invention relates to improvements in gages for press-dies of the class adapted to gage the edges of the metal, and the objects of our improvement are to accurately center the stock with reference to the die and to hold it firmly While being punched.

In the accompanying drawings, Figure 1 is a rear elevation and partial section showing our gage and so much of a press as is necessary to show the connection therewith. Fig. 2 is a side elevation thereof with some of the parts in vertical section. Fig. 3 is a plan .view of the lower portion of said parts, the vertically-sliding racks being shown in horizontal section on line a; a; of Fig. 1. Fig. iis a transverse vertical section thereof, partly in elevation, the plane of section being indicated by the line 2 y, Fig. 1. Fig. 5 is a rear elevation and partial section of our said improvement, with a modification of the mechanism for operating said gages, and Fig. 6 is a vertical section thereof, partly in elevation, the plane of section being indicated by the line a z in Fig. 5.

A designates the die-bed, B the dies, the punch-block, and D the pressslide, all of which, excepting in special features hereinafter described, may be of any ordinary construction and adapted for use with any ordinary press.

Our improvement is specially adapted for use in feeding to a die and punch plates or bars of metal of considerable length and width, and will be found especially useful when the cutting-die and punch or dies and punches extend over a considerable portion 45 of the length of the stock. As represented,

the stock is passed laterally through the press instead of from front to rear.

Upon the die-bed A and upon each side of the die B we arrange two longitudinal gages o 7 7, adapted to move to and from each other.

In the preferred construction these gages are provided at each end with an aperture 8, one

of which is shown in Fig. 3, the parts above it being broken away for that purpose. WVe also provide four nuts 9, the same being arranged in pairs of right and left hand threads and provided upon their under side with pro-' jections 10, which enter the holes 8 in the gages, as shown in Fig. 2.

In suitable bearings 11 1l,bolted or otherwise firmly secured to the bed A, we arrange the shafts 12 12, each of which is provided with right and left hand threads fitted to the nuts 9, as shown, whereby a rotary motion of the shaft will carry said nuts in each pair to 6 5 or from each other. At one end of each shaft we secure the pinion 13, which pinions mesh into and are operated by-the vertically-sliding racks 14:. Said racks are secured in any proper manner to the cross-bar 15, which cross-bar is so connected with the press-slide as to be raised and lowered thereby. This we do by attaching to the press-slide B a socket 16, containing a spring-pressed plun ger 1'7 for forcing said cross-bar downwardly 7 5 with the press-slide, and lugs 18, provided with adjusting-screws 19, for engaging the under side of said bar to elevate it. For the purpose of preventing the accidental displacement of the screws 19 when adjusted, we provide said screws 19 with the setnuts 20. The spring 21 Within the socket 16 has a tendency to .keep the plunger 17 projected from the socket, at the same time permitting it to yield in certain cases, while the head or nut 22 on 8 5 said plunger at the upper end of the socket prevents the spring from projecting the plunger beyond a certain limit.

A picker or takeoff 23 is secured to the die-bed A. by means of bolts 24:, which pass through hollow blocks 25, which blocks hold the takeoff at the proper elevation. The gages 7 7 are slotted laterally at points where the hollow blocks 25 pass through them, so that said blocks do not interfere with the lateral 5 movement of the gages. The racks 1d 14 are guided in their vertical movement by means of upwardly-projecting sockets 26, that are formed on or stationarily secured to the diebed, one of which sockets is shown in vertical I00 section in Fig. 1. In Figs. 5 and 6 we have shown substantially the same gages, but with a different mechanism for communicating with the downward movement of the cross-bar to the gages 7 7. The levers 27 are slotted at their outer ends to receive the under edge of the bar 15 and toothed at their inner ends, as shown at 28 in Fig. 6, to engage with and operate companion levers 29. These levers are pivoted on a fixed axis on a projection from the bed and provided on their under side with short arms 30 for entering holes in the ends of the gages 7, whereby a movement of the levers 27 will throw the gages 7 7 to or from each other. Bearing on the under edge at theouter ends of the levers 27 there are spring-pressed followers 31, which are actuated by springs 32, Fig. 6, within a socket on the bed A, to elevate said levers and crossbar 15 after each depression and thereby open the gages.

The parts are represented in the drawings as they appear when the gages are closed upon the stock. \Vhen the press-slideis fully elevated, the nut or head 22 of the plunger 17 will rest upon the upper end of the socket 1G and limit the projection of said plunger. As the press-slide descends, the cross-bar 15 is forced downward by-the plunger 17, thereby forcing the gages 7 7 together, through the connecting mechanism between said cross bar and gages, until the gages are firmly pressed upon opposite edges of the stock to bring the stock centrally over the die and holdit firmlyin advance of any cutting action of the punch. After the gages 7 7 come to a bearing, so that they can close no farther, the spring 21 permits the cross-bar l5 and plunger 17 to yield, so that the press-slide may complete its stroke while the gages remain stationary. As the press-slide returns, the operating mechanism acts to open the gages 7 7 slightly, so that the stock may be moved along between the gages to a proper posit-ion [or being acted upon again, and the gages are again forced against the stock, and so on repeatedly.

o claim as our invention 1. The combination of a press-slide 1), yielding plunger 17, connected thereto, the crossbar 15, a die-bed, the gages 7 7, and connect' ing mechanism between said cross-bar and gages, substantially as described, and for the purpose specified.

2. The combination of a die-bed, the gages 7 7, arranged to move to and from each other, connecting mechanism for positively moving said gages, a press-slide, and a yielding plunger for acting upon said connecting mechanism, substantially as described, and for the purpose specified.

3. The combination of the gages 7 7, nuts 9, engaging said gages, the shafts 12, having right and left hand threads within said nuts, the gears 13, and vertically-moving racks 14, operated through the press-slide, substantially as described, and for the purpose specifled.

4:. The combination of: the gages 7 7, nuts 9, engaging therewith, the shafts 12, having right and left hand threads within said nuts, the gears 13, vertically-moving racks 14, a press-slide, and the yielijling plunger operatively connected with said racks for depressing them, substantially as described, an d for the purpose specified.

5. The combination of a press-slide, the sockets 16, secured thereto, the spring 21 and plunger 17 within said socket, cross-bar 15, a die-bed, the gages 7 7, and comiecting mechanism between said crossbar and gages, substantially as described, and for the purpose specified.

CHARLES E. IlAR'l. THOMAS CORSCADEN. \Vitnesses:

G. L. REYNOLDS, ll. B. llUMASON.

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