US487441A - Boring and screw-driving machine - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

E. FINN.

BORING VAND SCREW DRIVING MACHINE.

No. 487,441. Patented Dec. 6, 1892.

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` E. FINN. BORING AND SCREW DRIVING MACHINE. No. 487,441. Patented Deo. 6, 1892.

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E. FINN.

` BORING AND SCREW DRIVING MACHINE. No. 487,441. l Patented Deo. 6, 1892.

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v I Zwzl?? jzyenlv" v UNiTisn STATESA PATENT @Tarea EDWIN FINN, OF ELKHART, INDINA.

BORING AND SCREW-DRIVING MACHINE.

lSPECIFICHEOIxl' forming part of Letters Patent No. 487,441, dated December 6, 1892. Application tiled April 12, 1892. Serial No. 428,800. (No model.)

.To all whom, t may concern:

Be it known that I, EDWIN FINN, a citizen of the United States, residing at Elkhart., in the county of lElkhart; and State of Indiana, have invented anew and useful Improvement in Boring and Screw-Driving Machines, of which the following is a specification.

My invention relates to machines for boring Wooden panels and the like, and more particularly to machines whereby a number of holes at predetermined points in the same board or panel may be bored at thesame time.

rlhe object of my invention is to provide a machineof the character named which shall be simple and readily adjustable and particularly effective for the purpose to which it is applied.

My invention consists generally in a compound boring-machine comprising a series of boring-tools arranged in different planes and all driven from the same source of power, whereby a number of holes may be produced at one operation.

My invention consists, further, in a coinpound boring-machine comprising a number of boring-tools driven from a common source of power to operate simultaneously, said boringtools being adjustable individually and in'series withv relation to each other.

My invention consists, further, in a boringmachine comprising boring tools properly supported and driven and a traveling bed for the work, movable toward and from the bor'- ing-tool and adjustable to present the work to the boring-tool on an incline, whereby the holes may be oblique with relation to the panel or other work; and my invention consists, further, in the general and specific details of construction and combination of parts, all as hereinafter set forth.

I desire it further understood that the machine herein described and claimed may by the simple operation of substituting screwdriving bits for boring-bits be used successfully as a multiple-screw-driving machine, t-he screws being placed in position on the board or panel or otherwise held in such manner as may prove most convenient under the circumstances. Hence my improvements, though described and claimed as applied to a boringmachine, are to be understood as relating to the machine, whatever use it may be put to.

In the drawings, Figure l is a sectional side elevation on the line l of Fig. 2 of a machine embodying my invention. Fig. 2 is a front elevation of the same, showing all but one in the sections between the boring-tools and drive-shaft removed to prevent confusion in the View. Fig. 3 is a horizontal section through the bed or table, taken ou the line 3 of Fig. 2 and viewed in the direction of the arrow. Fig. 4 is a view, partly in section, of thelower member of the tool-driving spindle.v Fig. 5 is a similar view of the middle member of the same. Fig. 6 is an elevation of the upper member of the same; and Fig. 7, a broken perspective View of the slotted bar extending transversely of the machine, which receives the bit-stocks and through which they are adjusted in series.

A represents the side pieces of the frame, which may be of any convenient form and supported in any convenient manner, from the upper end of which projects forward a head B and from an intermediate point on each of said side pieces projects forward the slotted guideway C. The length of the head B is ordinarilyv determined by the number of rows of boring-tools that it is desired to provide. In the illustration here given the machine is arranged for three rows of boringtools, each row made up of four tools. It will be understood that twelve holes may be bored simultaneously by the present machine and that the number may bev diminished, if desired, or increased in the mannerhereinafter described, but that with the arrangement of parts here shown more than three rows of boring-tools cannot be supplied. This may be done, however, without departing from my invention in the manner hereinafter set forth.

In journal-bearings t, located upon the head B, are sustained shafts D D', the latter of which carries at its end a drive-pulley s, and between the pulley and the bearing a gearwheel r, which meshes with and drives a similar gear-wheel fr on the shaft D.

At intervals upon the shaft D are located miter-pinions E, which may be splined to the shaft or otherwise secured thereto to revolve therewith while still being adjustable longitudinally thereon. In the illustration given in Figs. l and 2 set-screws q are shown as the means for holding the pinions in place and IOO permitting them to be adjusted longitudinally of the shaft. The shaft D is provided with a series of beveled pinions E,doublein number as compared with the number on the shaft D and having the bevel in a direction opposite to the bevel of the pinions E.

Extending from one head B to the other are slotted bars F, of which it is preferred to provide two, each immediately below a shaft D D. The slot in the bar F affords a means for adjustably supporting a series of sleeves G G', through which sleeves the upper member p of the tool connection H passes, said uppermemberbeing supportedin the sleeves, as presently explained. The slotted guideway C is in the form of a forward-projecting head provided on its inner face with a squared groove 0, in which groove is supported either end of three slotted bars I. The bars I are in number corresponding with the number of rows of boring-tools provided and, as will be apparent, are adjustable forward and backward with relation to the frame and may be held firmlyin theiradjusted position through the medium of set-screws o or other convenient device.

The bit-stock comprises, preferably, three members 19,19', and p2, connected together by universal joints in a common manner, the connection between them being such that the revolution of the upper member will cause a revolution ot' the other members, while the members may be out of plane with each other without interfering with the connection. Of these members the one at the upper end p terminates at its upper extremity in a beveled pinion n, which meshes with the pinion E E on the shaft D D. The member p passes through and is sustained by a sleeve G G', adjustably secured in the slotted bar F, as before described. The middle member p comprises two sections m m', the former in the shape of a sleeve and the latter in the shape of an entering rod, which is splined or otherwise held in the sleeve in a manner to permit itto havearelative longitudinal movement while being caused to revolve with the revolution of the sleeve. The lower end of the upper memberp and the upper end of the sleeve m are provided with universal-joint mechanism of the kind shown, whereby they shall turn together on their longitudinal axes and yet may present a relatively-diierent plane. The lower end of the member p is also provided with one member of a universal joint for connection with the lower member p2.

The lower member or bit stock or socket proper p2 comprises a screw-threaded rod l, terminating at its upper end in one member of a universal joint and at its lower end terminating in a bit-receiver Z. The-memberp2 passes through the slot in the slotted bar I and is held against movement therein by a pair of opposite freely-traveling washers Z2, having shoulders to impinge against the opposite sides of the bar Land nntslf, moving on the screw-threads on the rod l. It willbe apparent that the sleeves G incline in opposite directions, respectively, inward and outward, while the sleeve G is vertical. The members p of the bit-stock connection are passed through the sleeves G and are caused to ineline in a si milar manner, thus lengthening the distance between the terminal of said member and the upper end of the bit-stock proper p2. By making the intermediate member telescopic, as shown, the diiference in distance thus occurring is overcome. 'lhe purpose of providing the inclined sleeves G is to permit the three rows of tools to be driven from two drive-shafts. As before mentioned,the shaft D carries eight pinions E', while the shaft D carries but four-one for each tool in the series. By employing the inclined arrangement of members pp', with the universaljoint connection between them and with the bit-stock proper, the boringtools may be placed in parallel lines tranversely and longitudinally and driven by pinions ont of line with each other. Thus the beveled pinions E', which drive the middle row of tools, may be immediately behind the beveled pinions E, and the beveled pinions E', which drive the rear row of tools, may be located on points upon the shaft D between the other pinions. The pinions ot on the upper end of the member p in each case meshes with a pinion E E', and the incline necessary to permit them thus to mesh does not interfere with the communication of theirrevolution to the boring-tool, as will be readily apparent. As the pinions E revolve in an opposite direction to the-pinions E by reason of the meshing of the gearwheels r r', the bevel provided thereon is opposite to the bevel on the pinions E, and the opposite side of the pinion n is caused to mesh with said pinion E', whereby said pinion n revolves in the same direction on all the connections H throughout the machine.

The table and connecting parts for carrying the work (wood panels or the like) toward the constantly-driven boring-toolsare preferably made in two sections. The section K extends the full width of the frameA` and is provided at each end with an enlargement 7a, having on its inner facea dovetailed recess to receive the dovetail projection 7L,

formed on the side pieces, as indicated in provided with the recesses indicated at g, and Y from each enlargement 7c projects a tongue c, which serves as a stop to prevent the turning of the table L upon the pivot t' beyond a predetermined distance. The vertical part t of the table is also provided with curved slots IOO iol:

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1'?, through which pass set-screws t3 intothe section K. The purpose of these curved slots and set-screws is to permit the table after being inclined from the horizontal to be secured in said inclined position.

The raising and lowering ot the table is accomplished through the medium of curved arms M, each of which is mounted upon a shaftf, terminating at its inner end in a beveled pinionf. Said beveled pinionfl meshes with beveled pinion e, located on the opposite extremities of a transverse shaft e', through which connection the pinions e are caused to turn in unison. The shaft of one of the pinions f continues into a crank CZ, by which it may be turned by a winch. (Not shown.) As shown in the drawings, the arms M are oppositely curved, and by reason of the connection shown when the pinionf at one end is turned by the manipulation of the winch the pinionf at the opposite end is turned in the opposite direction, thereby turning the curved arms M outward and upward and moving the table L at both sides, and hence uniformly throughout.

The operation is as follows: The parts being arranged as heretofore described, and the various bit-stocks having been adjusted laterally and transversely to the points necessary to bore holes at predetermined places, and the drum S being set in motion, the winch is turned, thereby moving the panels to the boring-tools, which are thereby caused to bore all the holes necessary at a single operation. If it be desired to bore oblique holes in the work, the table may be caused to incline in either direction by loosening the set-screws i3 and turning the table upon the pivott` until the proper incline is reached. The table being thus secured and the work placed thereon inclined, holes may be bored through the same by moving the table through the medium of the curved arms M in the manner before described.

It will be quite apparent that the number of boring-tools in each series may be increased or diminished by increasing or diminishing the number of beveled pinions E E and introducing into or removing from the bar I bit-stocks for the tools with corresponding increase or decrease in the number of connecting media H. It is also quite apparent that the connections I-I may be made of similar parts in all particulars, whether they are to be employed with a vertically-arranged member p or withan inclined memberp. It is also quite apparent that the capacity of the machine may be increased to any extent desired by increasing the number of shafts D D', adjusting-bars F, and slotted bars I. It will therefore be understood that although I have in the present specification particu-- larly described a machine adapted to bore twelve holes, I do not in any sense coniine my invention thereto.

The specific connections and modes of securing the parts together are capable of change in matters of detail, as will readily appear to the skilled mechanic, without departing from my invention. The machine shown and described is believed, however, to be especially desirable not only in the general invention, but in the matter of detail.

What I claim as new, and desire to secure by Letters Patent, is-

l. A compound machine for use in boring or screw-driving, comprising, in combination, parallel series of simultaneously-driven, separably-mounted, laterally and longitudinally adjustable, and vertically-fixed tool stocks or sockets and a movable table to support the material operated upon and carry it to and from the tools, substantially as described.

2. In a compound machine for use in boring or screw-driving, in combination with the frame, the simultaneously-driven parallel shafts, and a series of tool-stocks independently supported and laterally and longitudinally adjustable, said stocks connected with said shafts to be operated thereby, substantially as described.

3. In a machine for boring and screw-driving, the combination, with the frame and with the bar I, having a vertical slot through the same, of vertically-arranged sectional bitstocks H, supported in the frame and passing through and supported in the slotted bar to be transversely adjustable on the latter, a shaft having gear connections at intervals with said bit-stocks, and means for driving said shafts, substantially as described.

4. In a boring and screw-driving machine, in combination, a frame A, a drive-shaft eX- tending across the frame, a guide-bar F, eX- tending across said frame below the driveshaft, and a vertically-slotted bar I, extending across and adj ustably supported in said frame below the guide-bar, bit-stock connections supported toward their upper ends on the guide-bar to be laterally adjustable thereon and toward their lower ends in the slotted bar to be laterally and independently adjustable thereon, and beveled gears on the drive-shaft and bit-stock connections, meshing with each other, substantiallyas described.

5. In a machine for boring and screw-driving, in combination with the bit-stocks and their connections and means for revolving the same, the independently-slotted bar I to receive the bit-stocks, adj ustably supported in guides C in the frame to be held against movement in the direction of boring and to be capable of adjustment forward and backward, and means, substantially as described, for affording an adjustable connection between the bit-stocks and slotted bars, substantially as described.

6. In aboring-machine, in combination, slotbar I, the bit-stock-carrier segment p2, passing through the slot-bar, washers Z2 upon said segment, and nuts Z3, whereby the segment p2 may be adj ustably secured at a predetermined location in the slot-bar, all as set forth.

7. In aboring-machine, in combination with IOO IIO

the fixed vertical revolnbie boring-tool, a ta ble having a slidingconnection with the frame below the boring-tool, and curved arms joined to co-operate, mounted, respectively, upon the frame-toward the opposite ends of the table and movable on their pivots in a vertical direction to raise and lower both sides of the table in their movement, substantially as described.

8. In a boring-machine, in combination with the boring-tools supported in fixed position, a table supported below the tools t0 have a free vertical movement, said table comprising sections K L, the latter pivotally supported on the former, wherdby it may be adjusted to an inclined position, if desired, and means for raising said table, comprising simultaneouslymoving curved arms M, supported below the table and engaging and lifting the latter, substantially as described.

9. A boring-machine comprising, in combination, the following elements: a frame A, provided at its upper end with a shaft-supporting head, toward its lower end with vertical grooves, and at an intermediate point with horizontal ways C, si m nltaneously-d riven shafts extending across the frame and carryin g at intervals bevel'gears, slotted bars I, having their ends introduced into the guide C, bit connections made of connected members, engaging the pinions on the shafts, respectively, to be revolved thereby and passing through the slot-bars l and held therein against vertical displacement, a table laterally supported in the machine, guideways on the frame to move freely therein, curved arms M, mounted, respectively, on shafts, each carrying a bevel-gear, said bevel gears being connected to co-operate, and means, substantially as described, for turning at will either of said curved arms on its shaft, thereby turning the other to elevate the table toward the bits, substantially as described.

EDWIN FINN.

In presence of- J. D. SALsIG, J As. TAYLOR.

It is hereby certified that in Letters Patent No. 487,441 granted, December 6, 1892, npon the application of Edwin Finn, ofs Elkhart, Indiana, for an improvement in Boring and Screw-Driving Machines, errors appear in the printed specification re quiring correction as follows: In line 119, page 3, the Word independently should read independent and the hyphen thereafter should be stricken out; and that the said Letters Patent should be read with v.these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed, eountersigued, and sealed this 20th day of December, A. D. 1892.

CYRUS BUSSEY, Assistant Secretary of the Interior.

[SEAL] Countersigned:

W. E. SIMoNDs,

Commissioner of Patents.

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