US1028805A - Tool-holder. - Google Patents

Description

I. M. WOOD.

TOOL HOLDER.

APPLICATION FILED SEPT. 25, 1911.

I Patented June 4, 1912.

wi/immeo Q QBMWW am 4, OEM'ZW HEB STATES PATNT ornio.

JOHN M. WOOD, OF DETROIT, MICHIGAN.

Specification of Letters Patent.

' i TOOL-HOLDER.

To all whom it may concern:

Be it known that 1, JOHN M. 7001 a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, new and useful Improvements in Tool- Holders, of which the. following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a tool holder of the class in which a tool holding head or body is provided with a shank for securing the holder in a machine and in which means are provided for adjusting the tool accurately into and out of longitudinal alinement with the shank.

The object of this invention is to provide a simple construct-ion having efiicient means for quickly securing the tool in place, and means for accurately adjusting the tool, said securing and adjusting means being contained within the head or body of the holder and thus provide a construction taking up the minimum of space in length.

To this end the invention consists in the matters hereinafter set forth and more particularly pointed out in the claims reference being had to the accompanying drawing in which- Fi ure 1 is a side elevation of a device embody ing the invention; Fig. 2, a longitudinal vertical sectionthrough the same; Fig.

3, a front end elevation with portions broken away to show the construction; andFig. 4 a transverse section on the line 4-4 of Fig. 3.

As shown in thedrawingsl represents a suitable head or body having an integral shank 2 extending laterally therefrom and by means of which shank the holder is secured in place within a boring or other machine for use. The head is formed with a smooth longitudinal bore 8 extending therethrough from end to end and with a longitudinal slot 4 in its side opposite to that of the shank and a smaller slot 5 in one of its other sides.

Fitting within the bore 3 of the head is a cylindrical plug 6 having a transverse opening 7 to receive a suitable tool 8 which when in place within the plug extends outward through the slot 4 in the head. Within a longitudinal slot 9 in the plug which opens at its lower end into the opening 7 is a movable block or jaw 10 having its lower end formed to engage the'tool and hold the have invented certain same firmly seated within the opening 7, the length of the jaw and the tool seat, being of sufficient length to prevent any lateral movement of the tool and their heavy strains.

Formed integral with the block 6 and extendingupward therefrom in the axis of the bore 3, is a tubular extension or member 11 which is externally screwthreaded throughout its length and is internally screwthreaded toreceive a clamping screw 12 extending inward from the outerend of the tube and bearing at its inner end upon the top ofthe jaw 10. The screw may be turned inward-to force the jaw into clamping contact with the tool 8, by means of a head 13 on its outer end and a small guide pin 14 on its inner end engages an opening in the jaw 10 to guidethe jaw and prevent the same from falling out when the tool is removed.

An adjusting nut 15 has an inwardly extending portion 16 fitting within the upper end of the bore 3 of the head and this portion is formed with an annular groove 17 to receive a locking pin 18-which extends transversely through the head 1 and engages the groove to detachably hold the nut in place and permit the same to turn freely within the bore of the head. The nut is internally screwthreadedto engage the ex ternal screw threads of the tubular extension 11 on the block 6 and the nut is formed with a shoulder 19 to engage the end of the head and is preferably knurled so that it may be conveniently turned by the operator. Suitably numbered graduations 20 are provided 0n the nut to indicate the position of the screw 11 relative to the-head and a suitable zero mark 21 on the upper end of the head is provided to register with'the graduations of the nut. l

The tool8 may be quickly and firmly secured in place by inserting it in the opening or seat 7 therefor in the block 6 and then turning the clamping screw 12 to force the jaw 10 into engagement with the tool. The means for securing the tool to the head are those located entirely within the head and in operation the holder may be used with its head running close to the work as there are no projections extending forwardly from the tool side of the head to prevent the holder from being run up to the work. By turning the nut 15 the block 6 with its tool may be quickly adjusted longitudinally of Patented June 4,1012. Application filed September 25, 1911. Serial No. 651,033.

the head 1 of the holder,

the bore 3 of the head to bring the tool nearer to or farther from the longitudinal axis of the shank 2. When so adjusted the outer side face of the head 1 of the outerv holder and extending inward through the slot 5 into engagement with a screwthreaded opening in the block. By means of a wrench the set screw 22 'may be quickly set up against the head to firmly clamp the block and rigidly hold the same against movement in the bore of the head. A very quick and accurate adjustment of the tool is thus secured by turning the nut 15 and'should it be found desirable to remove the parts from it is only necessary to knock out the pin 18 when the block with its clamping jaw, set screw and tubular extension, together with the adjusting nut may be pulled otherwise out of the head.

Having thus fully described my invention what I claim is 2- 1. In a tool holder, the combination of a head having a longitudinal bore and a slot in one side, a shank on the head, a block slidable within the bore and provided with a transverse opening opposite the slot in the head to receive a tool, means for securing the tool in the block, an externally screwthreaded extension on the block extending outward through the bore, and a nut on the extension engaging the end of the head and detach ably secured'thereto to turn thereon.

2. In a tool holder, the combination of a head having a longitudinal bore and a slot in one side, a shank on the head, a block slidable within the bore and having a transverse opening opposite the slot in the head to receive a tool, a tubular extension on the.

block projecting outward through one end of the head, means on the extension engaging the end of the head to adjust said block and extension longitudinally of the bore,

and means extending into the tubular ex tension from its outer end for tool in the block. I

3. In a tool holder the combination of a head having a longitudinal bore and a slot in one side of the head, a block slidable within the bore and having a transverse opening opposite the slot in the head to receive a tool, an externally and internally screwthreaded tubular extension on the block extending outward through one end of the head, a nut on the extension detachably secured to the end of the head to turn freely thereon and adjust the block and exsecuring the tension within the bore, a clamping screw extending into the outer end of the tubular extension and through the same in engagement with the internal screw threads, and means within the block adapted to be moved by the screw for securing the tool in the block.

4; In a tool holder, the combination of a head having a smooth longitudinal bore extending therethrough and longitudinal slots in its sides, a block slidable within the bore and having a transverse opening and slot extending laterally from the'opening, a jaw within the slot in the block to engage and hold a tool in the opening in said block, a tubular extension on the block projecting outward therefrom through the end of the block, means on the extension for adjusting the block longitudinally in the bore, means extending through the tubular extension into engagement with the jaw for moving the jaw into clamping engagement with a tool, and a set screw extending through one of the slots in the head into engagement with the block for holding said block in its adjusted position within the head.

5. In a tool holder, the combination of a head having a longitudinal bore extending therethrough and a slot in one side, a block slidable within the 'bore and having an opening, a slot extending laterally from the opening opposite the slot in the head to receive a tool, a jaw in the slot in the block movable therein to engage and clamp a tool, a tubular extension on the block extending in the axis of the bore outward through the end of the head, a nut having a shoulder engaging the end of the head and provided with an extension fitting within the end of the bore and formed with an annular groove, said nut having screwthreaded engagement with the extension on the head to adjust said head longitudinally within the bore, a pin extending transversely of the head in engagement with the annular groove in the nut to detachably hold the nut in place and permit a free rotation thereof upon the head, and a clamping screw extending into the tubular extension through its outer end and having screwthreaded engagement therewith, said screw being adapted to engage said jaw at its inner end to move the jaw and clamp the tool within the block.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN Ml WOOD. Witnesses:

LEWIS E. FLANDERS, OTTO F. BARTHEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I), 0.

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