US2352857A - Holder for taps, drills, and the like - Google Patents

Description

Patented July 4, 1944 HOLDER FOR- TAPS, DRILLS, AND THE LIKE Leonardhlachemoy, New York, N. Y.,v assignor to Abraham J. sossner, Theodore S. Sossner, and

Nettie Sossner, ahopartnership doing busines as Sossner Steel Stamps, New York, N. Y. 1 y

.wardly extends the spaced bars ll.

Application December 26, 19 42, Serial No. 470,312 1 Claim. (01. 29-89),

The present invention relates to holders for taps, drills and the like, and; particularly to fixtures for use in machinesused tomark sizes orother data or insignia on such toolsorthe like, or for performing otherpperationsthereon.

The principalobject of this invention is to provide a novel and improved device of the character mentioned, whereon, the articles to be worked on, are accurately and securely held and properly positioned, and adaptable by simple adjustment to accommodate articles of different sizes, to facilitate quantity production of the machine operation on different articles of the type set forth.

Another object hereof is to provide a novel and improved holder for all types of taps, drills and similar items, which is simple in construction, easy to use, and efficient in carrying out the purposes for which it is designed.

Other objects and advantages will become manifest as this disclosure proceeds.

In the accompanying drawing, forming part of this application, similar characters of reference indicate corresponding parts in all the views.

Fig. 1 is a plan view of a holding device following the teachings of this invention.

Fig. 2 is a side view thereof.

Fig. 3 shows a section taken at line 33 in Fig. 1.

Fig. 4 shows a fragmentary detail of Fig. 2, including a positioning arm used herein to maintain the mounted articles against axial rotation on center-mounting elements.

Fig. 5 is a fragmentary sectional detail showing the square end of the shank of one of the mounted articles, a tap in this instance, resting on a positioning arm.

Fig. 6 is a similar view, where said arm is provided with a groove wherein said tap end may rest.

Fig. 7 shows a modified form of a centermounting element.

In the drawing, the numeral l5 designates generally a frame member comprising essentially a forward bar I6, from which there rear- The numeral l8 designates generally another frame member comprising essentially a bar l9, from each end of which extends a member 20, each in contact with the outside surfaces of the bars ll, whereby frame 18 is slidable along frame IS; the bars I6 and I9, in the embodiment shown, being in constant parallel relation. The elements 20 are each provided with a slot 2i, while the bars ll have aseries of tapped holes 22, whereby the frame, members can be secured by means of bolts 23 for instance, to maintain the bars l6 and I9 in'any desired spaced relation.

The forwardbar 16 carries a series of centermo-unting elements comprising the pins 24 slidably mounted therethrough; said elements being preferably equi-spaced along said bar, and in parallel relation among themselves, and having pointed ends 24' extending from the rear of said bar l6, and headed ends 24" extending forward of said bar. About each of the shanks of said pins 24 is a coil spring 25, between the rear surface of the bar l6 and the pointed-headed ends 24'.

The rear bar l9 carries a series of centermounting elements, comprising the pointed pins 25, fixedly extending towards the pins 24, and respectively in alignment with them. The axes of all pins 24 and 2B are co-planar. Said rear bar I9, along its underside, carries a circular rod 21, supported on spacer blocks 28 and 29 depending from said rear bar. A series of forwardly extending arm elements 30 have lateral nipples 3| which are loosely carried on said circular rod 21; one arm 30 at every pin 26; said arms 3!] being urged upward towards their respectively related pins 26, by means of the individual springs 8|, which act in torsion. The free forward ends of said arms 30 are a little forward of the pins 26 respectively, and in or near contact therewith, behind such forward ends of said arms. It is also desirable that each arm 30 be symmetrically positioned with respect to the axis of their related pins 26, respectively.

The center-mounting elements may be pointed as are 24' and 26, or provided with sockets as at 32, and the contact surface of the arm 30 may be other than flat, as for instance it may be provided wtih a V trough as at 33, or otherwise, all of which design will be determined by the nature and construction of the ends of the articles to be mounted between the pairs of aligned pins 24 and 26. The holder specifically illustrated herein is adapted for mounting taps 3.4 thereon, for taps usually are provided at each end with a center-socket.

In use, the frames l5 and I8 are set and secured to each other so that the distance between the opposite center- mounting elements 24 and 26 is a little less than the length of identical taps 34 to be mounted in the device. The taps 34 are individually mounted in the following manner: A particular end of the tap 34 is set atop one arm 30, shifting the latter downwardly against action of its spring 3|, until the pin 25 over said arm enters the socket at that particular end of the tap 34, by a slight shift of said tap in the direction of said pin; the-tap 34 being held tilted in hand. The aligned forward pin 24 is now pulled forwardly at 24", against action of its spring 25. The other end of tap 34 is now moved by the hand which holds it, to lie in the line of said pair of pins 24 and 26. Thereupon, knob 24 is released from hand and point 24 will enter the socket at this forward end of the tap 34, whereby said tap is mounted in axial alignment with said ins, and the arm member 30 will maintain the tap in axial fixation, be-. cause the particular cross section of the tap at either end is non-circular. After all the taps 34 are mounted as aforesaid, the fixture may then be mounted in required manner in or on any machine which is to perform some operation on the taps 34, as marking the sizes thereon.

The tie-bars 35 may be used to accurately position the fixture in the marking machine or the like. After the machine operation on the mounted taps 34 is completed, the manner of removal of the taps, and replacement by others for repetiton of the machine operation, is obvious.

This invention is capable of numerous forms and various applications without departing from the essential features herein disclosed. It is therefore intended and desired that the description herein and the phraseology and terminology employed herein is for purpose of explanation and not of limitation, and that the specific embodiment set forth shall be deemed illustrative and not restrictive, but that the patent shall cover all patentable novelty herein disclosed; reference being had to the following claim rather than to the description herein to indicate the scope of this invention.

I claim:

In a device of the character described, the combination of a frame, a pair of aligned, adjustably spaced center-mounting elements on the -frame, adapted for mounting an article capable of axial rotary movement between them, a shaft mounted on said frame adjacent to and in transverse relation to one of said center-mounting elements, an arm pivotally mounted at one end on said shaft and a resilient means adapted to urge the free end of the arm towards said one center-mounting element, whereby said arm upon contact with the article, will maintain said article in any placed position and permit manual axial rotary movement of said article to other positions about said axis.

LEONARD N ACHEMOV.

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