US658670A - Woodworking-machine. - Google Patents

Description

No. 658,670. Patented Sept. 25, I900.

J. m. NASH.

WOODWORKING MACHINE.

(Application filed Dec. 1, 1899.)

(No Model.) 8 Sheets-Sheet I.

No. 658,670. Patented Sept. 25, I900. .1. m. NASH.

WOUDWORKENG MACHINE.

(Application filed Dec. 1, 1899.)

8 Sheeis$heei 2.

(Np Model.)

THE wnms FEYERS w vacuum-no WASHINGTG No. 658,670 Patent ed Sept. 25, I900. J. M. NASH.

WUODWORKING MACHINE.

(Application filed Dec. 1, 1899.) (No Model.) 8 Sheets-Sheet 3.

No. 658,670.. Patented Sent. '25, I900.

J. M. NASH. WGDDWORKING MACHINE.

(Application filed Dec. 1, 1899.) (No Model.)

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WOODWORKING. MACHINE.

(Application filecLDec. 1, 1899.)

8 Sheets-Sheet 5.v

(No Model.)

m: ymnms PUERS co. mom-U150. WASHINGYON. n. c.

N0. 658,670. Patented'Sept. 25, I900.

J. M. NASH.

WODDWURKING MACHINE.

(Application filed Dec. 1, 1899.}

8 Sheets-Sheet 6,

(No Model.)

Patented Sept. 25; I900. J. m. NASH.

WUUDWORKING MACHINE.

(Application filed Dec. 1, 1899.) (No d l.) 8 Sheets-Sheet 7.

mus wcrsns on, Puo'ro-Llma. vusnmsmu D c No. 658,670. Patented Sept. 25, I900. J. M. NASH.

WOODWORKING MACHINE.

'Application filed Dec. 1, 1899.)

(No Model.) a Sheen -Sheet s.

War $66 W kg mm AZ OiVVW UNITE. ST TE 'ATENT OFFICE.

'JOHN M. NASH, OF MILWVAUKEE, WISCONSIN.

WOODWORKlNG-MACHINE.

SPECIFICATION forming part of Letters Patent 0. 658,670, dated September 25, 1900.

Application filed December 1, 1899. Serial No. '738,7'76.- (N0 model.)

loose pulleys for a driving-belt being also ar- To aZZ whom it may concern:

Be it known that I, JOHNM. NASH, a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in VVoodworking-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to woodworking-machines organized with especial reference to gang-boring at various angles in curved or plane material; and it consists in certain peculiarities of construction and combination of parts, hereinafter particularly set forth with reference to the accompanying drawings and subsequently claimed.

Figure 1 of the drawings represents a vertical sectional view of my machine and is indicated by line 1 1 in Fig. 2; Fig. 2, a front elevation of the machine, partly broken; Fig. 3, a rear elevation of same; Figs. a and 5, detail sectional views, respectively indicated by lines 4 4 and 5 5 in Fig. 1; Fig. 6, a top view of said machine, partly in horizontal section; Figs. 7 and 8, horizontal sectional views respectively indicated by lines 7 7 and 8 Sin Fig. 1; Fig. 9, a detail sectional view indicated by line 9 9 in Fig. 8; Fig. 10, a detail elevation illustrating a wedge holder constituting part of the machine; Fig. 11, a detail sectional View indicated by line 1111 in Fig. 9; Fig. 12, a similar view indicated'by lines 12 12 in Fig. 1; Figs. 13 and 14, elevations illustrating details of clamp-and-trip mechanism embodied in the machine when the same is organized for boring in curved material; Fig. 15, a detail plan view illustrating a piece of curved material clamped in position to be bored, the lever and bits in this figure being in section; Fig. 16, a detail sectional view illustrating an adjustable connection of coupling-sections; and Figs. 17 and 18,detail partly-sectional elevations illustrating a work-table that constitutes part of the machine when the same is organized for boring plane material.

Referring by letter to the drawings, A represents a hollow casting constituting the base and standard of my improved boring-machine provided with bearings for a horizontal lower shaft B, upon which pulleys O D of diiferent diameters are made fast, the usual fast and ranged on said shaft.

Projecting from the rear uppercorners of the machine-standard are bearings for counterstuds E, supporting a pair of pulleys F, and surmounting said standard is a plate G, provided with vertical studs upon which a pair of idlers H are loosely arranged. The plate G is provided with longitudinal slots engaged by set-bolts b, and a tapped lug of said plate is engaged by an adj usting-screw c, that turns in a lug of the aforesaid standard.

I-Iung in boxes at the front upper ends of standard-arms d are the hubs of three pulleys I, and trained onpulleys D, F, idlers H, and pulleys I is a belt J, the tension of this belt being regulated-by adjustment of plate G above specified.

In spline connection with the hub of each pulley I is an upper extension of a vertical spindle K, and this spindle is provided with a spur-wheel L, in mesh with pinions M, fast on the npperends of three other spindles K, in cluster with the one aforesaid. All the vertical spindles have their bearings in boxes, constituting parts of a loose head N,that plays in guide-flanges e of the machine-standard, and a housing N on this head incloses the gearing connecting said spindles in clusters.

From the'foregoing it will be understood that all the spindles are caused to rotate by the travel of belt J, and reciprocative motion is imparted to the loose head N by the means hereinafter described.

In universal joint connection with the lower end of each of the aforesaid spindles is a depending coupling O, preferably comprising two adjustably-connected sections, and in like connection with the lower endof each coupling is a stock P for a boring-bit Q, the universal joints herein shown being such as are specifically set forth in my Patent No. 599,189, of February 15,1898. One section of each coupling 0 is made hollow to receive the other section, and a longitudinal groove fin the latter section is for engagement with a corresponding pin f in the former section. The hollow coupling-section has a split and tapered lower end, externally screw-threaded, and a taper-thread nut g is run thereon to clamp the other coupling-section in adjusted position. Each bit-stock P engages a guidesleeve R, provided with an inclined lateral LOO extension at its upper end, this extension constituting 'a' port "through which to run lubricant, and an inclined rear shank h of the sleeve is in pivotally-adjustable connection with a triangularly-flattened end i of an otherwise round shank S, engaging a box S, hav ing slide engagement with longitudinallyflanged parallel bars '1, constituting parts of a wedge-holder supported by a bracket U, bolted or otherwise made fast to the machinestandard, the details of this last described construction and arrangement of parts being best illustrated in Figs. 1 and 8.

Between the bars T are a series of three wedges, one upon the other, the middle wedge V being tapered on both sides in opposition to the tapered inner sides of the other wedges V, the horizontal outer sides of the latter wedges being incontact with blocks j, made to fit in boxes S against the shanks S aforesaid, the boxes being disposed alternately above and below the wedge-holder to economize space. The middle wedge is provided with a round screw-threaded extension 70, engaging a flanged nut W, held to turn in a bushing m, rigid in a tubular box extension 17. of the wedge-holder, said nut being provided with handles W to facilitate turning when the wedges are to be tightened or loosened. From the foregoing it will be apparent that each bit-stock guide may be set at various angles on an arc of a circle due to its pivotally-adjustable connection with a supportingshank, and this shank may be adjusted on an arc of a circle at right angles to the one aforesaid. It will also be understood that the shank is longitudinally adjustable in its box and that the latter is adjustable on the wedge holder at right angles to said shank. Therefore each bit-stock guide is universally adjnstable independent of the others in the series; but all of-the shanks and their boxes are made fast or loosened at the same time by the same means-that is to say, the wedge V is run back to loosen said shanks and boxes and run in to fasten same in adjusted positionthe couplingO being necessarily in universal joint connection with spindles and bit-stocks to permit the various adjustments of the bit-stock guides, whereby gang-boring at different angles may be done in either curved or plane work, this being the main object of my invention.

In suspended link connection with the machine-standard is a lever X in pivotal connection with rear ears p of the loose head N, and a spiral spring Y is suspended from the lever in rear of its fulcrum. A link (1 connects the lower end of the spring with a book '2", that has vertically-adjustable connection with a bracket .9 on the machine-standard, and the adjustment of this hook serves to regulate tension of said spring. A pitman Z,

in ball-and-socket-joint connection with the end of the lever X farthest from its fulcrum, is also in swivel connection with a wrist t of a spur-wheel 2, fast on a shaft that turns in bearings provided on the machine-standard, and this spur-wheel meshes with a pinion Z, having an elongated hub it, loose on a stud to, extending from said standard. Loose on the pinion-hub is a pulley A, and a belt B, trained on this pulley and the one C aforesaid, is opposed by a tightener-pulley D, loose on a crank E, suspended from an arbor F, supported in hearings on the machine-standard, this arbor being in crank-and-link connection with a treadle G", sleeved on a pivotrod supported by said standard. The hub of pinion Z is provided with a beveled notch, and engagable with this notch is a correspondingly-beveled radial spring-controlled latch W, for which the pulley A is provided with guides. When the treadle G is actuated, the pulley D is operated to tighten belt B, and thereby cause rotation of pinion Z with pulley A, whereby the spur-wheel Z is set in motion to give an upward throw to pitman Z against resistance of spring Y, thus causing head N to move down and feed the boring-bits to the work. The pitman having finished its upward stroke the pull of the spring will serve to continue revolution of the spur-wheel should pressure be removed from the treadle, the pinion-hub slipping its latch to at each revolution while the beltpulley A is idle, and thus the aforesaid head will have automatic return to normal position, its movement being discontinued when the said spring has fully contracted. However if the treadle is held down it is obvious that reciprocation of the head will be continuous.

Guided on the front lower portion of the machine-standard is a frame I-I, provided with bearings for a horizontal hand-wheel spindle I, having a bevel gear-wheel as rigid thereon, and this gear-wheel meshes with a similar wheel 3 fast on a vertical screw-rod J, that is loose in said frame, the nut for this screw-rod being a lug z, projecting from the machine-standard. Hence it will be understood that vertical adj ustment of the aforesaid frame may be readily accomplished.

In pivotal connection with the lower offset portions of the frame H, eccentric thereto, I show a detachable yoke L, and a bailL, in connection with frame-lugs, is caught on the inner arm of the yoke to hold the latter in vertical position. A lever M, fulcrumed on the lower portion of the yoke, is in pivotal connection at its ends with rods b c, for which the arms of said yoke are provided with guides. The beveled upper end of rod 1) is in the path of a lug d on a lever O, hereinafter more particularly described, and the upper end of rod 0" is in opposition to the bail L, whereby under impulse of said lever said bail may be lifted clear of the yoke to permit outward swing of same, the pivotal play of said yoke in either direction being limited by stops 6 thereon in opposition to a lug f, projecting from the machine-standard. In vertically-adjustable connection with IIO the outer arm of the yoke L is a gage P, and guided on the upper end of said yoke-arm is the sliding jaw Q of a work-clamp, the latter being in opposition to the cam-head g of lever O aforesaid. The clamp-jaw Q has a slotted outer lug engaged by cars h, rising from the outer arm of the yoke, and the camhead of the lever is in pivotal connection with said ears. The stationary jaw Q of the work-clamp is adjustable on the upper end of frame H, slots in this jaw being ongaged by set-bolts that screw in said frame.

The above-described clamp is for bent work, and the metal jaws of said clamp are faced with wooden blocks made to correspond to the curvature of the material to be clamped, said material being supported on the gage P at the requisite depth in the yoke. The work being set in on the gage the lever O is swung up to clamp said work and at the same time swing the yoke L with said work in position for a boring operation should said yoke have been previously swung forward to facilitate the insertion therein of the aforesaid work, after which the treadle is actuated to set the reciprocative tool-head in operation.

The yoke L may be detached from frame H" and a work-table R pivotally secured to said frame, as shown in Figs. 17 and 18. Longitudinally-slotted links '5 are suspended on pivots underneath the work-table, and setboltsj, engaging the link-slots, are screwed in the sides of frame'H, whereby said table may be held in a horizontal or tilted position.

Inmatters of detail the practical machine herein set forth may be varied in some particulars without departure from the scope of my invention, said machine being especially designed for the simultaneous boring of a plurality of apertures or sockets at a variety of angles.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A woodworking-machine provided with a series of universally-adj ustable guides, bitstocks loose in the guides, rotary spindles geared together in clusters, one spindle in each cluster being longitudinally extended, pulleys in spline connection with the extended spindles, idlers and other pulleys in train with the pulleys aforesaid, and a belt run in contact with all the pulleys and idlers.

2. A woodworking-machine provided with a series of universally adjustable guides, bit-stocks loose in the guides, a head constituting a sliding part of the machine, spindles carried by the head in flexible connection with the bit-stocks and geared together in clusters, one spindle in each cluster being longitudinally extended, pulleys in spline connection with the extended spindles, idlers and other pulleys in train with the pulleys aforesaid, a belt run in contact with all the pulleys and idlers, and means for reciprocating said head.

3. A woodworking-machine provided with a series of universally-adjustable guides, bitstocks loose in the guides, a head constituting a sliding part of the machine, spindles carriedv by the head in flexible connection with the bit-stocks and geared together in clusters, drive mechanism in connection with one of the spindles in each cluster, a spring controlled lever connected to said head, a pinion having an elongated hub loose on a stationary stud, a spur-wheel in mesh with the pinion, a pitman connecting the lever and spur-wheel, a pulley in slip-clutch connection with the pinion-hub, a drive-shaft pulley belted to the pulley aforesaid, and treadle= controlled belt-tightener mechanism.

4. A woodworking-machine provided with a stationary holder comprising a pair of par allel angle bars, boxes adjustable on the bars longitudinally thereof, pinch-blocks fitting the boxes, wedge mechanism in opposition to the blocks, round shanks in the boxes opposed by the pinch-blocks, guides having pivotally-adjustable connection with ends of said shanks, bit-stocks loose in the guides, and rotatory reciprocative spindles in flexible connection with the bit-stocks.

5. A woodworking-machine provided with movable boxes in series alternately disposed on parallel supports, guides having shanks adjustable in the boxes, means for clamping said boxes and guide-shanks in adjusted po sition, bit-stocks loose in the guides, and rotatory spindles in connection with the bit stocks.

6. A woodworking-machine provided with movable boxes in series alternately disposed on parallel supports, shanks adjustable in the boxes, means for clamping said boxes and shanks in adjusted position, guides having adjustable connection with ends of the shanks, bit-stocks loose in the guides, and rotatory spindles in connection with the bitstocks.

7. A woodworking-machine provided with a series of universally-adjustable guides, bitstocks loose in the guides, rotatory reciprocative spindles in flexible connection with the bit-stocks, an adjustable frame, a yoke in eccentric pivotal connection with the frame, a bail in connection with said frame, engageable with an arm of the yoke, a bail-trip mechanism, a work-gageadjustable on the other arm of said yoke, a stationary clampjaw in connection with the aforesaid frame, a sliding clamp-jaw on the gage-arm of the aforesaid yoke, and a clamp-lever operative to actuate said bail-trip mechanism.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wiscousin, in the presence of two witnesses.

JOHN M. NASH.

Witnesses:

N. E. OLIPHANT, B. O. ROLOFF.

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