US531251A - bxchx - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1. J. BfiGHE,Jr. FILE CUTTING MACHINE.

N0. 531,251. Patented 1360.18, 1894 0, e w w J 1 2M a .THE cams Farm; 00., PHqTmLn'HQ. vnsmncrou. u. c.

(No Model.) 4 SheetsSheet 2.

J.BE0HE,J1-. FILE CUTTING MAGHINE.

N0. 531,251. Patented Dec. 18, 1894.

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(No Model.) 4 Sheets-Sheet 3. J.BE0HB,J1-. FILE CUTTING MACHINE;-

NO. 531,251. Patented Dec. 18,1894.

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J.BECHE,JL v FILE CUTTING MACHINE. No. 531,251.

Patented Dec. 18, 1894.

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JEAN BECHE, JR, OF HUOKESWAGEN, GERMANY.

FlLE-CUTTlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 531,251, dated December is, 1894.

Application filed March 14,

To all. whom it may concern:

Be it known that I, JEAN BficHfi, J12, a subject of the King of Prussia, German Emperor, and a'resident'of Hiickeswagen, inthe Prov ince of the Rhine, Kingdom of Prussia, German Empire, 'have invented certain new and useful Improvements in File-Cutting Maphines, of which the following is a specificaion.

This invention refers to machines for providing files automatically with the cuttings,

and my improvements in such machines re-' late, first, to means for varying the force of the blows of the cutting-chisel automatically as well as by hand; and second, to means for effecting the intermittent motion of the file during cutting, as will be more fully described hereinafter.

In order to make my invention more clear, I refer to the accompanying drawings, in which similar letters denote similar parts throughout thedifferent views, and iriwhich- Figure 1 shows the front-view of the improved machine, the cylinder on the top be ing in section, and the left-hand part of the file-cutting-bed being broken off. a Fig. 2 shows'a' side-viewof the machine. Fig. 3 is a plan of the lower part of the machine, the

section being taken on line l 7'-18 of Fig. 1. Fig. 4: is the front-view of the lower part of the machine, the left hand part of the filecutting-bed, as well as the upper part of the frame being broken off. Figs. 5, (Sand 7 are details belonging to the upper part of the machine. Figs 8 and 9 are front-views of the intermittent gearing-device. Fig. 10 is an upper view'of the'same. Figs 11, 12,13 and 14 are left handside-views and right hand side views of the gearing-devices in two positions corresponding to Figs. 8 and -9.- Figs.

v 15 and 16 are details of the gearing-device.

The base (1., Figs. 1 to 3, of the machine carries besides the frame proper a a special bed a of oblique configuration, forming the filecutting-bed. This bed contains a slide 1) with a special bearing-piece b, to which is secured the file c to be cut.

may be intermittently moved upward by means'of ascrewed-spindle d, Fig. 2, as will be more fullydescribed hereinafter.

The chisel c, Fig 2, by means of which the cuttings on the file are produced, is attached The said slide 1894. seanm.5os,ess. (NomodeL) to astrong bar f, the upper end of which ex= tends into the cylinder a at the top of the frame as seen in Fig. 1. A cam g, Figs. 1 and 2, fixed to shaft 9 and driven from pulley g acts intermittently on a projection f secured to bar f, so thatthereby this bar-is alternately raised and released, together with chisel e. The latter on each fall produces a cut on file c. The force 'ofthe blow is given not only by the weight of bar f, but. mainly by the reacting elasticityof an india-rubberblock h, Fig. 1. per end by the cylinder-cover afiand isc'ompressed from below by the action of cam g parts when coming under the chisel will not receive as powerful blows as the other parts, as the height of stroke of bar 1 is reduced then corresponding to the greater thickness of the file. To compensate this, the indiarubber block it should be compressed in a correspondingly higher degree, which is antomatically eifected by the following arrange ment: A ledge '11, Figs. 1 and 2, the shape of which is dependent on that of the respective file, is attached to slide b, and acts ona roller is, secured to the lower end of a rod is. v This rod extends upward beyond cylinder a Fig. 2, and is connected at this end with an axle Z by means of a lever-arm Z, Figs. 5 to 7. The other end of said axle carries an eccentric Z adapted to serve as fulcrum for a doublearmed lever m m. Arm m is connected by link m .with the movable cylinder-covera above block h, while arm m is movably connected with a spindle n, the lower threaded end of which extends through the long nave n of ahand-wheeln by the projecting part of ledget' (which, as a matter of course, occurs always when a thicker portion of the body of a file comes under the chisel), shaft 1 will be turned in such a direc- This block is held at its up- If, now, rod k is raised tion by lever arm Z, Fig. 5, that eccentric Z however, the force of the blows is -to he altered by hand, the wheel n is turned, so that rod n is lowered and raised, accordingto the 'In either direction of rotation of said wheel. case, eccentric Z will form then the journal for lever m m, and the latter thus will raise or lower the cover a.

The file is held in position duringcutting by a presser-roll 0, Figs. 1, 3 and 4, held by an arm 0'. The latter is secured to a shaft 0 which has fixed to it along lever-arm o carrying at its end a weight 0 by the influence of which latter the roll 0 isstronglypressed onto the file and the fileonto itsbed, on which it is held by friction. If, after finishing-eutting, the slide with thebed'shallbe brought back to its former, initial position (whichiis effected by hand in a manner afterward explained), it becomes necessaryto free thesame from the pressure of roll o,as-o therwise the said backward movement would be rendered difiicult by that pressure. This is more the case, since the pressure exerted by the heavy barf must be considered. In order, now, to release the slide from those twopressnrcs, lever 0 is connected by means of a-linko with a lever-arm 0 fixed to a shaft 0". Thefrontend of this shaft carriesahand lever-oi Figs. 2 and 3, by means of which lever oQandlink 0 may be moved from the .positionimFig. 1 into that shown in Fig. 4. Theparts-inquestion are held in this position by a thumbo, Fig. 4, fixed to shaft 0 Roll 0 has then leftthe file, so that thelatter isfneed from thedraft of weight 0 Lever o then=beingin the position shown in Fig. 4 has liftedalso-roll k a short distance from ledge 11 bypushingag-ainst a projection Fig. :2, forminganelongation of the journal of roll 70 in the lowerendof rod is.

There remains now to be described the mechanisms for moving the-spindlein' one or the other direction, by power or by hand, which is performed by aid 10f the following arrangement: The inclinedspindle d carries at its upper end a bevel-wheelp meshing with a like wheel 19-,Figs. 8 toll), on shaftp The latter carries at its righthand end a ratchet wheel 10 Figs. 8 to 10 and 15, into which takes apawl 10 attached to aleverp Tihelatter is looselyfulcrumed on shaft ot-and isosoillated from shaft 9', Figs. 1-and2, by eccentric g and eccentric-rod g shaft'p is thus, intermittently rotated in the same direction. It now, the file has been cut-and-slide b b is to be moved back to its formeninitialposition, the gearing-between ratchet p and-pawl p must be interrupted forthat time. For this ratchet-wheel 19 and pawl-leverp, isprovided with cogs on but a part of its circumference, and "carries opposite theretoa curved projection or ledge '1" (Figs. 15 and 16) that is adapted to lift pawl 13 out of the ratchets and hold it off therefrom, as represented in Fig. 16- Wheel 0' meshes with a similar wheel 7' having but as fewteeth as necessary for turning wheel r with ledge 1" from the position shownin Fig. 15 into that shown in Fig. 16. WVheel r isfixed to the right hand end of a shaft r Figs. 8, 9, 11 to 16, which at its other end carries a weighted lever 1 Figs. 8, 9, '11 and 13, the purpose of which is to maintain ledge r of wheel 1 in either of its two end-positions, the position of lever r in Fig. 13 corresponding tothat of ledge 'r' in Fig. 15, while Fig. 11 corresponds to Fig. 16.

Thelefthandend of shaft'p carries a cogwheel e,Figs. 9and 10, meshing with a cogwheel s on shaft etFigs. 8 to 10and 11 to 14. l hisshaft is longitudinally displaceable in its bearings, and has a hand-wheel s -by meansof which it maybe turned. Normally, the shaft s has the position shown in Fig. 8, in whichthe co -wheels s s' are out of gear. They are prevented from coming spontaneouslyintogear -by a thumb 6, Figs. 8 and 11, forming part of a sleeve t fixed to shaft 4. This thumb is wedge-like, its-edge being at that rim, wh-ich first touches the side of cog wheel s Figs. Sand 11, when the thumb is moved from itsposition of rest, Fig. 13, to its working position, Fig. 11. The thumb is also usedfonkeeping'the said two wheels in gear after shaft s has heen displaced to the right. This iselfeeted by first changing the position of the weighted-lever r so that the latter gets the position shown in Fig. 13, then displacing the shaft s with wheel 3, sothat this wheel comesin-to gear with cog-wheel s, and finally changingthc position of lever 1' again, so that thumb t of sleeve t' is laidnow against the other side of cog-wheel e, as to be seen in Fig. 9. Inorder to effect that, bevel-wheel p with spindle d iinstantly ceases turning when ,pawl 19 has ceased to act on the ratchetwheel 11 (for the purpose of getting, perfectly equal and sharpcuttings), the nave of wheel 19 is to itsgreatestpart surrounded by astrong spring w, Figs. 8 and 9, the two legs 11) w of which are forked and embrace the shaft 8 as shownin dotted lines inFigs. Hand 13. Leg w'iof'sprihgw isprevented from giving wayto the left sideby apin w screwed into the frame of themachine, while the other leg can be moved a short way left hand by a swell s of shafts every time whenthis shaft is set outof gear "with shaft 10 .(by the cogwheels 3' s). The spring to w 20 is then pressed on the nave of wheel 19, so as to act nowas a brake with rcgardto this wheel, and toiprevent untlne movements of the latter. The braking power-is, however, not so great astointerfere with the-proper intermediate rotation of spindle d bylpawl p and ratchetwheel'p". If,afterward,rshaft e is displaced to the right l (Fig. 9),the swell s leaves the hand-wheel s is not hindered.

Having thus fully described the nature of this invention, what I desire to secure by Letters Patent of the United States is '1. In a file-cutting machine, the combination with a chisel-barf adapted to be raised intermittently, of an elastic body It adapted to be compressed or strained by the raised chisel bar, and to strengthen the blows of the same; a counter bearing a for said elastic body; a double-armed lever m m connected with one end to said counter-bearing; an eccentric Z holding said double-armed lever, and adapted to raise 'and lower the same; a

drawor push rod n connected with the other end of said lever, and adapted to turn the latter on said eccentric; a lever 1' connecting the shaft of said eccentric with a rod 70' arranged parallel to the chisel-bar; and an exchangeable ledge i arranged on the file-bed and adapted to displace said rod longitudinally, substantially and for the purpose as described.

2. In a file cutting machine, the combination with a chisel-bar f adapted to be raised intermittently, of an elastic body it adapted to be compressed or strained by the raised chisel bar, and to strengthen the blows of the same, a counter bearing a for said elastic body; a double-armed lever m m connected with its one end to said counter-bearing; an

onto said bed by the mediation of a roller 0;

and a lever 0 having a thumb 0 and connected by a link 0 with said weighted lever; the latter being adapted to be held in'raised position by said thumb, and to raise in its turn the said rod is, substantially and for the purpose as described.

3. In a fileeutting machine, the combination with a chisel-bar f adapted to be raised intermittently, of an elastic body It adapted to be compressed or strained by the raised chisel-bar, and to strengthen the blows of the same; a counterbearingfot for said elastic body; a double-armed lever on 9% connected with its one end to said counter-bearing; an eccentric Z holding said double-armed lever, and adapted to raise and lower the same; and a drawor push-rod 7 connected with the other end of saidlever, and adapted to turn the latter on said eccentric; a lever'l' connecting the shaft of said eccentric with a rod 70' arranged parallel to thechisel-bar; an exchangeable ledge i arranged on the file-bed, and adapted to displace said rod longitudinally, a rod 9 connecting an eccentric g on the shaft g with a lever 19 carrying a pawl 19; a shaft 19? having a ratchet-wheel p operated by said pawl. and a bevel-wheel p gearing with a bevelwheelp on a threaded spindle dadapted to intermittently displace the file-bed b b; a rotatable ledge 1" adapted to disengage pawl p from ratchet-wheel 19 a shaft r carrying a weighted lever r, and a cog-wheel r gearing with a like wheel 1' carrying the said ledge r, substantially and for the purpose as de scribed.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JEAN BEOHE, JR. Witnesses:

' WM. EssENWEIN,

F. H. STRAUSS.

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