US729372A

US729372A - Box-tool.

Info

Publication number: US729372A
Application number: US9599102A
Authority: US
Inventors: Edward Marcille
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-02-27
Filing date: 1902-02-27
Publication date: 1903-05-26
Anticipated expiration: 1920-05-26

Description

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BOX TOOL No. 729 372. P'ATBNTED MAY 26; 1903.

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BOX TO0L..

APPLICATION FILED FEB. 27, 1902.

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UNITED STATES Patented May 26, 1903.

PATENT OFF CE.

EDWARD MAROILLE, OF DECATUR, ILLINOIS.

BOX-TOOL.

SPECIFICATION formingpart of Letters Patent No. 729,372, dated May 26, 1903. Application filed February 27, 1902. Serial No. 95.991. (No model.)

To all whmn it may concern:

Be it known that I, EDWARD MARoILLE, of

the city of Decatrincounty of Macon, andState of Illinois, have invented certain'new and useful Improvements in Box-Tools, of which the following is a specification. w The object of this invention is'to provide means for accurately and rapidly turning articles having either parallel sides, tapered sides, or partly straightand partly tapered sides.

The invention is exemplified in the structure hereinafter described, and it is defined in the appended claims.

In the drawings forming part of this speci- @cation, Figure 1 is a side elevation of the tool.

Fig. 2 is an end elevation of the tool. Fig. 3 is a plan of the body member of the tool. Fig. 4: is a side elevation of one of the adjustable work-guides. Fig. 5 is an end elevation of the work-guide. Fig. 6 is a detail of one of the bolts used to adjust the work-guides. Fi 7 is an elevation of the inner surface of the tool-post. Fig. 8 is a section through the toolpost on line X in Fig. '7. v

The body member of the tool comprises a plate 1; an extension 2, rising from one end of the plate, and a stem 3, by which the tool is held in a lathe-chuck or other support. The tool-post 12 sits on plate-l at one side of the axis of the tool, and it is held in place by bolts 16 and 17, as shown in Fig. 7. .Bolt 16 extends through hole 22, (shown in Fig 3,) and bolt 17 extends through the slot 2 3,which is in the form of an are drawn with hole 22 for a center. The outer edge of the slot is in line with the outer edge of the hole, the inner side of the slot is extended inward past the inner side of the hole, and the bolt-holes in the toolpost are in a line parallel with the face of the post, so when bolt 17 rests against the outer edge of slot 23 the tool-post is parallel with the axis of the shaft- 3 and with the motion. of the work into the box-tool. lVhen bolt 17 is loosened, moved inward in the slot, and retightened, the tool-post forms an angle with the motion of the work or with the axis of the box-tool that is proportionate to the outside in a plane parallel with plate 1, as

shown in Figs. 7 and 8, and tools, as 13 and 14, may be inserted through the slot and held in place by clamp-screws 15. Bolts 8 extend through sleeves 6, and they have shoulders 8 on their inner ends, against .which the sleeves are clamped by nuts 9. Guide-bars 19 are pivotally connected with bolts 8, and renewable bearing-strips 20 are held in grooves in bars 19.

The face of the tool-post is circularly recessed, as shown at 21 in Fig. 7, and the side of tool 13 extends into the recess and is sharpened to face off the work when such facing is desired.

A guide member 5 rises from plate 1 on the side thereof opposite tool-post 12, and it curves over the center of plate 1 at its upper end. A groove 4 is formed in a rib on plate 1 and the guide member has a rib 5 on its lower inner edge, that extends into the groove 4. Bolts 18 extend through slots in plate 1 and screw into the guide member, and these bolts aid the rib 5 to resist the stress of the work against the work-guides. A post 10 is secured to plate 1 in the rear of the vertical part of the guide member 5, and a screw 11 extends through the post and into the guide member and provides means for adjusting the guides lengthwise of the body.

A pair of externally-threaded sleeves 6 is screwedvertically through the horizontal extension of the guide member, and another pair of sleeves is screwed through the vertical extension of member 5. Fin ger-wheels 7 on sleeves 6 provide means for screwing the sleeves in and out. Bolts 8 extend through sleeves 6, and they have shoulders 8 on their inner ends, against which the sleeves are clamped by nuts 9. Guide-bars 19 are pivotally connected with bolts 8 and renewable bearing-strips 20 are held in grooves in bars 19.

The box-tool may be held against rotation and moved to and from the work while the work is rotated, or it may be made to rotate While the work is fed into it.

The

tools

13 and 14 and the guide-bars 20 are adjusted to conform to a sample-finished article that it is desired to reproduce in quantities, and when the adjustment is correctly made one article after another is shaped with rapidity and precision.

Then the article to be turned has straight or parallel sides, the tools and guides are set somewhat as shown in the drawings, the question of diameters alone being considered; but when the article is tapered the tools and guides are set 011 inclines corresponding to the taper of the work. When the work is partly tapered and partly straight, the tool 13 is set at the proper angle to produce the required taper and the other tool is set straight.

In adjusting the tools and guides a finished sample is put in place in the box-tool, the tool-post and the tools therein are adjusted to conform to the outline of the sample, the nuts 9 are loosened, the guides are lined up against the work, the sleeves are screwed inward until their inner ends bear against the shoulders S of the bolts, and the nuts 9 are retightened to clamp the sleeves against rotary motion. After the

tools

13 and 14 are properly adjusted the screws 15 are tightened to make the adjustment secure.

The stress of the work is downward on the tool-post, but it is upward on the guides and special provision is needed to overcome the stress onbolts 18. The rib 5 acting in groove 4: resists the upward stress on the guide member to the full extent of the strength ofthe metal in the rib, and it also provides for lengthwise adjustment of the guide member on the bodyplate.

The front ends of the guides must be slightly in the rear of the front edge of the tool 13, so that the tool will cut a bearing for the guides. The advance of the tool should not be more than is actuallyneeded to make the necessary bearing-surface, and so it is very desirable to have the guide member adjustable.

The sleeves 6 and the bolts therein move in and out in parallel lines, and to permit the guide-bars to assume inclined positions one bolt 8 of each pair is slotted at its pivot to permit the movement of the pivot-pin that the obliquity of the guide-bar requires. (See 8" in Fig. 6.)

I claim 1. In a box-tool, the combination of abodyplate, a guide member secured to a side of the plate and extended around the axis of the work, an elongated tool-holder on the opposite side of the plate, pivoted at one end to the plate, and a clamp-bolt for securing the swinging end of the tool-holder to the plate in various positions, whereby the tool in the holder maybe set parallel with the axis of the work or atvarious angleswith relation thereto.

2. 'In a box-tool, the combination of a bodyplate, an elongated tool-holder hinged at one end to one side of the body-plate a clampbolt to secure the swinging end of the toolholder to the plate in various positions, a guide member longitudinally slidable on the opposite side of the plate, and guide-bars adjustable in the guide member to and from the work.

3. In a box-tool, the combination of a body comprising a plate, alateral extension of the plate and a stem on the extension, a tool-post angnlarly adjustable on one side of the plate, a grooved rib rising on the opposite side of the p1ate,a guide member having a rib engaging the groove of the plate, such guide being extended partly around the axis of the work, and guide-bars adjustable in the guide member to and from the work.

4. In a box-tool, the combination of a bodyplate, a tool-post angnlarly adjustable on one side of the plate, a guide member attached to the opposite side of the plate and extended partly around the axis of the work,externallythreaded sleeves screwed into the guide member and arranged in pairs disposed lengthwise of the tool, bolts in the sleeves having shoulders bearing against the inner ends of the sleeves, nuts on the outer ends of the bolts to clamp the sleeves between the nuts and the shoulders of the bolts, and guide-bars pivotally connected with the inner ends of the bolts.

In testimony whereof I sign my name in the presence of two subscribing witnesses. EDWARD MAROILLE.

Witnesses:

S. R. GHER, L. P. GRAHAM.