US943863A - Nut-tap socket. - Google Patents

Description

W. L. GLOUSE.

NUT TAP SOCKET.

APPLICATION FILED MAR. II 1907.

Patented Dec. 21, 1909.

inf; Ill i?! I UNITED STATES PATENT OFFICE.

WILLIAM L. CLOUSE, OF TIFFIN, OHIO,- ASSIGNOB. 'l O THE NATIONAL MACHINERY COMPANY, OF TIFFIN, OHIO, A CORPORATION 01'! NEW JERSEY.

NUT-TAP SOCKET.

Specification of Letters Patent.

Patented Dec. 21, 1909.

Application filed latch 11, 1907. Serial 3.. senses.

- pecially adapted for holding taps employed in power nut-tapping machines.

The object of this invention is to provide a socket so constructed as to permit of the ready removal of the tap secured therein without stopping the machine.

A further object of the invention -is to provide a tap socket so constructed as to permit of the insertion or removal of the tap with little pressure.

A still further object of the invention is to provide the improved socket with means for preventing breakage of either the tap or its securing pin in case the nuts should collect on the shank of the tap and tend to crowd the tap from the socket.

The construction of the improvement will be fully described hereinafter in connection with the accompanying drawing, which forms a part of this specification, and its novel features .will be defined in the appended claims.

In the drawings Figure 1 is a central longitudinal sectional View of a tap socket embodying the invention. Fig. 2 is a similar view on a line at right angles to the section line of Fig. 1.

The reference numeral 1 designates the body-portion of the socket bored longitudinally to receive the shank 2 of the tap 3, and transversely boredand threaded to receive two diametrically opposed screws 4 which frictionally engage the opposite flattened faces 5 of the shank at the upper end thereof to removably secure the tap within the socket. An annular groove 6 is formed in the shank of the tap and in the wall of the socket is formed an opening 6 to register with the annular groove in the shank of the tap. A in 7 having a rounded end is inserted in t e o ening 6 and its inner end enters the annu ar groove 6. A guard plate 8, formed of resilient material, is

secured to the socket 1 by means of a screw 8 and is arranged to extend down over the head of the pin 7. The plate 8 is arranged so that it will normally stand away from the head of the pin 7 and at a short distance above the lower end thereof is formed a shoulder or projection 10 which is preferably formed by making a bend in the plate itself. A slidable ring 9 is arranged around the lower end of the socket and in the inner face of said ring is formed an annular groove or recess 9. The internal diameter of the ring is such that when the ungrooved portion thereof is in contact with the shoulder 10 on the guard plate 8, the uard plate will be pressed in and caused to bear on the head of the pin 7 and when the guard ring is raised and the recess is brought opposite the shoulder then the late 8 will s ring back from the head of t e pin 7 a su cient distance to permit the pin 7 to move out so as to withdraw the inner end thereof from the annular oove 6. Stop screws 11 and 12 are provi ed for limiting the upward and downward movement of the ring 9.

By my invention I am able to provide means for holding the tap firmly in the socket when the machine is running under proper conditions and at the same time the tap can be quickly removed by simply raising the ring 9 which permits the guard plate 8 to spring back thereby releasing the pin 7 and a pull on the tap will force the end of the pin 7 out of the groove 6. Now in case the tap should become crowded with nuts through the neglect of the operator the unusual pressure caused by the accumulation of nuts on the tap will automatically withdraw the tap from the socket thereby preventing the breaking of the tap. The automatio release of the tap is due to the fact that the plate 8 is resilient and although when it is held or pressed in by the ring 9 it will exert sufficient pressure to hold the pin 7 in the groove 6 under normal conditions nevertheless when an abnormal pull comes upon the ta the end of the plate 8 will bend back un er the outward pressure of the pin 7 permitting the tap to be withdrawn from the socket.

That I claim is 1. The combination with a tap socket of a tap provided with a groove, a pin extendin through an opening in said socket an adapted to enter the groove in the tap and means for retaining and releasing said pin comprising a spring plate secured to the socket and bearing on said pin, said spring plate being formed with an outwardly extending bend and a ring movable on said socket and formed with a groove on its inner surface arranged to receive the bent portion of said spring when the ring is shifted to release the tension on said spring.

2. The combination with a tap socket of a tap provided with an annular'groove, a in extending through an opening in said soc et and adapted to enter the groove inthe tap and means for retaining and releasing said pin comprising a spring plate secured to on said socket and formed with an annular 20 groove on its inner surface arranged to recelve the bent portion of said spring when it is desired to release the tenslon of said spring, substantially as described.

In testimony whereofyl sign the foregoing 25 specification, in the presence of two witnesses.

WILLIAM L. GLOI ISE.

Witnesses:

E. R. Fnos'r, WALTER N. CLOUSE.

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