US1502381A - Engraving machine - Google Patents

Description

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c. H. FIELD ENGRAVING MACHINE ll Sheets-Sheet 9 Filed June 25, 1921 lllllllllllIllllllllllllllll IIII July 2z 1924. 1502,38@

C.L H. FIELD ENGRAVING MACHINE Filed June 23 192) ll Sheets-Sheet lO me/two@ July 22 1924.

, C. H.4 FIELD ENGRAVING MACHINE Filed June 23, 1921 ll Sheets-Sheet 11 www Patented July 22, i924.

Uhllll STATES CHAR-LES H. FIELD, O'F PROVIDENCE, RHODE lsLAND.

ENGRAVING MACHINE.

Application led June 23, 1921. Serial No. 479,903.

To all whom t may concewt:

Be it known that l, CHARLES H. FIELD, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Engraving Machines, of which the following is a specification.

rlhis invention relates to improvements in engraving machines more particularlyof the planer type; and has torits. object to provide a machine of this character having means for automatically arresting the action of the tool upon the work-when the work is finished and. to automatically discharge the work when finished and position fresh work therein.

A further object. of the invention is to provide means for producing lateralr vibrations of the tool'while operating longitudinally upon the surface of the work.

A still further object of this invention is to provide a series of patterns for controlling the lateral vibrations of the tool while operating upon the work. v a

My invention further consists in the provision of a plurality of means for automatically positioning the various patterns to control the vibrations of the tool while acting upon the face of the work.

The i. vention further consists in the provision of means for raising the tool `from the work at predetermined intervalslduring the relative longitudinal movement of the work; also the provision of means yfor controlling the action of the tool upon the face of the work so as to leave blank spaces of the desired width on the work either for the length of the work or for any portion thereof. l

lVith these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings Figure l is a side elevation of my improved engraving machine.

Figure 2 is a plan view of the machine.

Figure 3 is a perspective `view showing in detail the tool head as supported on a pair of resilientl arms.

Figure 4- is a partial plan view of the machine with the magazines removed to better show the operating mechanism below.

Figure 5 is a sectional elevation on line the bed,r showing the bar for releasing the clutch which drives the work carriage reciprocating mechanism. p

Figure 8 is a perspective view illustrating the mechanism for tripping and releasingy the carriage stoppingA bar.

Figure 9 isa perspective view showing Vthe protruding end of the carriage stopping bar in positiony to engage the latch and withdraw the clutch to arrest the action of theA work carriage; also showing the cani for repositioning the clutch to again start the carriage after fresh work has been positioned thereon.

Figure l0 shows the mechanism for repositioningthe carriage operating stop bar which occurs `inst before the clutch has been drawn in. s

Figure ll is a perspective view showing the means-controlled by the carriage for lifting' the tool-head at the endV of a working stroke, alsonshowing the means for dropping the tool-head -thus bringingthe tools into contact with .the work at the beginning of a working stroke. l p

Figure 12 shows the mandrels as' positioned and locked into tubular work.

Figure 13 shows the inandrels as having been partially withdrawn from the tubular f work.

Figure le shows the mandrels as having been fully rwithdrawn from the work also indicatingvportions of the magazines for positioning fresh work to be mounted upon the inandrels; also showing the mechanism for operating the tailstock or end support for the free ends of the mandrels.

Figure l5 is a perspective view illustrating the mechanism by which the magazines may be moved to position the work to receive the mandrels and subsequently raise the magazines into the position best illustrated in Figure 5.

Figure 16 shows an enlarged side elevation of the neck portion of theinagazine illustrating the end stop for the work and the spring pressed fingers for holding the work while in the neck of the magazine.

Figure 17 is an enlarged view of the free end of the mandrel showing the pivoted fingers adapted Vto expand and'grip the internal surface of the worr to hold 1t firmly so that it is positively driven by the rotating motion of the mandrel. Figure 18 is an end view of the mandrel showing the expanding fingers.V

Figure 19 shows a set of equalizing levers which are adapted to be mounted in the toolhead, the same being adapted to compensate lfor luneve'nesses in the surfaces of the various pieces of work operated upon by the tools; a single compensating lever being llustratedin dotted lines in the Vhead shown in Figure 5, for a pair of tools.

Figure 2O is a plan view showing a por-k tion ofthe carriage on which'is mounted a plurality of patternbars for controlling the raising from or lowering of the tool onto the work during"` its longitudinaltravel thereover. i f I Figure 2l is a vertical sectionon line bar for 'causing a vertical vibrationof the tool as it vpasses along the surface of the work; also showing the cam for controlling the positioning of Vthis pattern bar.

Figure 22 is a sectional elevation on line 22-22o`f Figure'20, 'looking in the direction of the arrowV and showinganother pattern bar which is adapted to raise the tool from the work during complete stroke Vif de- -sired to leaveaplain-surface, or unfigured rpattern roll in adjusted position.

Figure 26 is a perspective view showing amodifiedform of work-support which isl vadapted to vhold the work which does not have to be rotated in order to present ythe surface which is desired to be'finish'ed.

Figure 27 illustratesfone formV of work having aY fiat surfaceV which has been finished'in my improved machine.

Figure 28shows 'anotherA or tubular form Vof work which hasl been acted upon'or fin- -ished 1n my improvedengravingmachine.

My improved engraving machine'isof the vplanerjtype and is more particularly adapted `forfoperating upon tubular `work 'such `las pen and pencil cases and the like, which aremounted'upon a'carriage to move'longitudinally and also to be rotated on centers upon the carriage to present different yportions of'the surface tobe operated upon by the engravingtool; also other Awork such as that having fiat, oval, dome-shaped, or rounding surfaces or surfaces of other forms may be operatedupon and on which surfaces the tool may produce lines which are 'straight and continuous, broken or interthe work will *be dischargedfrom the machine 'and the cycle of operations successively repeated until'the work in the feeding magazine has been exhausted; and the Y yfollowing is a detailed Vdescription of one means 'by which these results may be accomplished AWith reference tothe drawings, 30 designates the bed of the 'machine on which the carriage 81 is mounted 'to reciprocate in ways 32, itsmo'tion being received from the crank 33 on the main drive shaft 173, see Figure 1, through the connecting bar 34, the throw of this crank 'being adjustable by means of a screw to regulate the length of the operating stroke of the work relative to thetool, and the'carriage may be ad justed lengthwaysV independently of the stroke by'me'ans of :a screw'BG to position the work relative tothe tool. L

The v-mechanism herein illustrated is more particularly adapted for operating Vupon work of a tubular fo'rm such as pen and Vpencil casings 'and the 'like and. this work is mounted `rupon the carriage between the -headstockBT and the 'tailstock38, see Figure 4.

"Any convenient number of tubes may be mounted between this yhead 'and tailstock but for convenience l have shown but two,

one on eitherside ofthe machine.

In order to support these pieces of work 1n a practical way-l `have mounted 'mandrels '39 adapted to be moved in and-out through this head stock 87 to pass through the tubes when positioned to receive such mandrels.

These mandrels are all connected to crosshead 40 see Figures 12, 13 and 14'and are adapted to be drawn out by means of a cam 41 and forced into `positionto engage the rwork by a cam 42 bot-h of which arelmount- 'ed on a rotatabledisk 49 toralternately enllO 1 from.

the mandrels are inserted into the work and the latch 50 snaps over the back of thecrosshead locking it and the mandrels in this forward position.

A clutch member 7 6a forms a partv of the mandrels so that when they are carried to their forward position this clutch engages a corresponding clutch portion on the hubs of the driving gears 77, presentlyvdescribed, so as to rotate the mandrels and their different pieces of work in unison.

Before the yoke can now be withdrawn from this in or operating position its locking latch 50 must be withdrawn there- To do this at the proper Atime I have provided a cam 50a on disk 49, which is mounted with the other cams on cam shaft 175 which shaft is operated from the main drive shaft 17 8 through the differential gearing 174; whereby the cam 502L rocks the arms 512L and 52- to withdraw the latch and releases the yoke Al0 at the propery time.

1tis found in practice desirable to support the free end of these mandrels while. the work is being operated upon and is also found of advantage to provide means in the mandrels for gripping the work to bind the same to the mandrels and cause it to always rotate therewith. To `do this I have provided a tailstock 38 in which is mounted a tailstock center or support 51 see Figure 1, the outer end of which is recessed to'receive and support the free end of the mandrels, which end of the maudrels is provided with a pair of expanding, gripping jaws 52 pivoted at 53 in the slotted end of the mandrels, see Figures 17 and 18, between which jaws is mounted a central expanding pin 54. whose outer end extends beyond saidjaws.

During the time that these mandrels are being forced into the work, their centers or supports 51 are withdrawn from operating position by theengagement of the cam 55, mounted on the disk 56, with the inclined surface 57 of the lever 58, which acts through the connection 59, long rock arm GO pivoted at 61, connection 62, short rock arm 68, latch 64( and shaft Gil-a, to hold these centering supports back against the .tension of their springs 65, and when this cam 55 moves out of contact with itslever 57, these centering members are released to move forward under influence of their springs 65, each to engage the end of its mandrel and force inwardly the centering pin 54 to expand the jaws 52 causing` them to grip and bind the work thereon; also serving to support the free end of the mandrels and th.o work during the period it is being operated upon.

Over each piece of work I mountan engraving Vtool 67 all to work in unison in a tool-head 68; and in some cases where but two are used they are supported on a single compensating rock bar 69 as illustrated in dotted lines in Figure 5, while when a greater number are employed they may be supported on a series of compensating levers 70 illustrated in Figure 19 so as to Vequalize the pressure of the several tools upon the surface of the work.

As this tool-head 68 must be capable of transmitting` a vertical vibration or motion to the tools I have mounted the same upon a pair of resilient arms 71, see Figures 2 and f5, the opposite ends of which are connected together by a bar 72 which is pivotally mounted on centers 73 and the tools are caused to produce a yielding pressure upon the work through action of the flat spring 7a which is provided with an adjusting screw 75 by which the required pressure ofthe tool upon the work may be readily. obtained.

Vhen otherythan tubular work is operated upon such for instance as flat work v180 as illustrated in Figures 26 and 27, this work may be mounted' in a chuck 7 6 or other convenient holder and moved transversely on the carriage during the longitudinal Amovement of the carriage beneath its tool by means kof the screw 181 operated by the. pawl 182, but when it is desired to operate upon tubular work such as pen and pencil casings and the like, this work must be rotated upon its carriage in order to present itsk whole surface, lor any requiredy portion thereof, to the operating tool, and in order .to accomplish this I mount a gear 77 on each of the mandrel,supporting bearings and these gears are connected through ythefidlers 78 to engage the driver gear 79 which latter is mounted upon the, shaft 8O to the rear end of which 1s fixed a ratchet gear 81 through kwhich this shaft receives a step-by-step rotating motion to impart the same through said gears to the work during the operation of the tool thereon.

In order to produce `this step-by-step inotion to the shaft I mount a bar 82Y to slide transversely in the groove in the carriage 81, action being given to this bar by engagement of its protruding end 83, see Figure 7, with the relatively-fixcd cam 84 on the bracket 85 whereby at the end of each operating stroke of the carriage this bar upon engaging this fixed cam 84 is moved inward v ly endways and its latch or pawl 86 engages a tooth in the ratchet wheel 81 and so imparts yto the same a step-by-step rotation. As will be seen this cam 84. may be adjusted by the screw 87 on its bracket 85, so as to impart to the bar 82 sufficient motion to rotate the ratchet the desired number of teeth at each stroke, to produce the desired effect of the tool upon the work.

v rIhis step-by-step rotating motion of the work continues until the same has, preferably,pmade a complete revolution when the trip pin 88 which is carried by the shaft 8O comes in contact with and depresses the latch 89, which ispivotally connected tobar 90, to release this bar, which, under action ot its compressed spring-91, nowmoves torward until `'the taller lip 89a 'of vthe Vvlatch brings up against plate 90a, which fmovement causes the bar to Vextend into position to engage the rocker latch V92, see Figure 9, to swing the same as the carriage moves fiorward'to the end of its inoperative-stroke, to move the lever 93 and cause it to withdraw the clutch 91`and arrest further l motion of the carriage by disconnecting the maindiive shaft 173 and its carriage driving crank 33 from the rotating pulleyi95 which-runs Yco'ntinuously.

The next operation, after the carriage has stopped, is to unlock'and withdraw the mandrels 39 trointhe work inthe mannerabove described, which withdrawing action releases the finished worktpermitting it to drop by gravity from its working position, after which the 'magazines =96 in 'which lthe V'fresh work is stored, are each moved to llo cate a `fresh tubefin position to receive its mandrelandatter all ot 'the mandrels have been again positioned and locked in the work the magazines Vare removed ready to start the vmachine into action.

Y The magazines best illustrated'in Figures 5 and 15 may betormed in any suitable shape to support a multiplicity7 ot tubes-or pieces of work above their respective work supports, and in Figure 15 lI have shown kthem as connected to a cross-bar '99 which yslidesl vertically iny Vguides `100, the same lbeing lfirst moved to :lower lthe :magazines Vwith their vworkY into the ,proper fposition, :by vpresenting the recessed portion v101 ot the cam 102 to the vertical member 109, which, through crank 110 and lever 111, permits 'this magazine to drop yby gravity toithe required position the same being subsequently raised out of operating position by a continued rotation ofsaid cam.V Y

As best illustrated 'in Figures v5 and 15 these magazines or work-storing receptacles, are provided with narrow necks 103 attheir lower ends in which the VKwork-lays ein superimposed 'relation and as the magazines are dropped into operative position the vertically-sliding latches 104, which 'limit the endways motion of the work'in these necks, engage the bearings 105 at oneend and the vsupporting center 51 at 'the otlierrend,fsee Figures 5, and 16,'to raise ythem out of the way and permit themandrels to be passed through the tubes Vand locked in working position therein, after which xthe magazines zare raised through 'action of the vlevers 109, 110, 111 and cam y102,*thereby causing the Vspringjrpressed tube-'retaining latchesv 112 to be :forced fopen leaving the tube which is locked by the'mandrels vand as the magazine continues to rise, the latches 112 quickly close again to prevent other tubes from falling out.

After the fresh work has beenpositioned and the Vmagazines removed the carriage may be again set in motion, which operation ris performed in its'regularorder Yby causing the cam 106 on Vdisk 107 to tact upon 'the pivoted leverarms 108 to torce-back the -bar 90 Jfromengagement with latch 92 torelease the lever'93, the cam 97 fnow acting through the lever 98 throws inthe clutch 91 toagain ldrive thecarriage with its reciprocating motion. This'inward movement of the clutch 91 swings the Varm 93 to reposition the rock latch 92 and in so doing its notched fend A92aengages the Vend 93FL of' the lever 92,'see Figure-2, securely locking thislever-against a' rocking action and so :positively preventing the disengagementor the clutch y9L1icr`om the driving mechanism until this member 92 has been again operated 'at the finish of the next piece of work.

As it is vtoundyin practice desirable to raise the tool from the work fat the -end of its forward Astroke so las notY ltoY drag Vover the work,as the carriage returns'for another stroke, Iliave provided ali-adjustable 'screw 113 on the side ot the carriage Vso tha-tas the carriage advances with thework, to the end orp a cutting/stroke, thee'nd of this screw engages the arm 114 and throws it backward causing its roll 115 to :mount vthe inclined surfacel 116 von Ythe bar 117 thus lifting the `tool clear of the work, and at the lastend of the -return stroke of -th'eqcar- Y riage, Vthe head ofv the screw 1118 engages this lever 114 swinging vit forward -from contact with the member 117,\pern^iitting the tool to again drop'into engagement with-the work. Also on this lever arm"111I have mounted a laterally-extending arm` 1f19vh`av- -ing a `rearwardly--eXtending proj ectingcamshaped end 120 which, when theleve'r-arm is swung backon its pivot 121, causes-*said rearwardly turned end to engage t-he fpin 122 drawing the ftQol-head -to the lett-and withdrawing the stylus, Apresently described, from its pattern l'bar whi-ch'is `designed t0 produce lateral vibrations ofthe tool` on the work.

In order to produce a broken or disconnected line along the surface ot the work, I have lprovided a patternibar `123, `the surl:tace of which may be scalloped, as illustrated in Figure 21, which surface is designed to be engaged'by the stylus 124, carried by the ltool-headV 68, so as to raise ythe through the miter gears 127, which cam is caused to control the positioning of the pattern bar 123 through the bar 128 and this cam will thus perform two functions first, it is caused to move the pattern bar longitudinally in its guides 129 and so cause the tool to be raised at different points in different lines through its longitudinal stroke, also the high points of the cam serve to force the guide pins 130 down the incline 131, thereby depressing this pattern bar out of engagement with its stylus permitting a plain line to be made by the tool, the spring 14() returning' this cam-bar to raised positionwhen again released by the cam. In other cases when it is found desirable to raise the cutting tools from the worlr duringan entire longitudinal stroke, or some portion thereof, I have provided a plain-faced-pattern bar 132, the working surface of which may be the entire length of the stroke or any portion thereof. This bar is supported on pins 133 in the inclined grooves 134 and is provided with an extension member 136 which engages a cam 137 also mounted on and rotated by the shaft 126 whereby this pattern bar-132 when pressed inwardly will be lifted into engagement with its corresponding stylus 138 to raise the tool-head 68 with its tools from the work, the spring 139 returning this bar to normal or dropped position when released by the cam.

In some cases such for instance as when it I is desired to leave a plain surface on the work for a name plate or other similar purpose, I have mounted a raised-member 141 on a. collar 142 threaded on the shaft 80 whereby thisraised portion may be adjusted longitudinally on theA shaft or circularly thereon, the same being adapted to be brought into position by the rotation of shaft 80 to be engaged by an individual stylus 142zx to form a plain space in any desired place on the surface of the work.

In addition to the provision of means for lifting the tools from the work as desired in order to produce different patterns thereon, I have also provided means for producing lateral vibrations or movements-of the tools during their operation upon the surface of the work whereby-a great variety of combination movements of the tool and consequently a great variety of designs upon the worlr may be produced; and the following is a detailed description of one means by which a great variety of such movements may be produced As best illustrated in Figures 4, 5, 23, 24, and 25, I have mounted a cylindrical member 145 on a shaft 146 to rotate in bearings 147 movably mounted in ways 149 on the outside edge of the carriage 31, and on the face of this cylinder I may form any desired patterns in any suitable way to be reproduced upon the work by lateral movements or vibrations ofthe tools, but I preferably providea plurality of longitudinallydisposed groovesk in the face of this cylinder and in these grooves I mount bars 148 the outer edges of which may be scalloped or,

otherwise shaped to produce the desired lateral vibrations on the tool through the stylus 150 mounted on the tool-head 68.

In order to present the different pattern bars which are located about the surface of this cylinder, Vto the stylus, I have provided a cam 151 to be moved with the carriage the same being mounted on the shaft 152 to be rotated step-by-step at -the end of each working stroke of the carriage by means of the screw 153 acting against the lever 154, which'lever in turn act-s upon the spring-pressed oscillatory plate 155 on whichv the pawl 157 is mounted to engage androtate the ratchet 156 which is also mounted on this shaft 152 and connected to the cam 151. The lower end of a vertically-disposed rackbar 158 is caused under tension of spring 161 to rest upon and follow the edge of this cam 151 and the teeth 159 of this bar engage the teeth 160 onV the cylinder shaft 146 and as the cam is rotated step-bystep a corresponding rotation is transmitted to the pattern cylinder 145. The working face of this cam may be so shaped as to produce different degrees of movement of the rack-bar for the purpose of moving int-o position the desired pattern bar in the cylinder. Y

It will also be seen that this cylinder operating mechanism is mounted upon the carriage to move with it while the adjustable screw 153 is supported in a relativelyfixed position from the base of the machine.

This pattern cylinder is positively held in any of its several working positions by means of a spring-pressed pawl 162 which engages notches 163 in the edge of the ratchet.

ywheel fixed to the cylinder shaft 146, which pawl is withdrawn from its notch by engagement at its lower end 164 with the relatively-fixed cam 165, see Figures 23 and 25, which cam is mounted on the base 30 of the machine,` so as to permit a free or unrestricted movement of the cylinder through the 'cam-operated mechanism above described.

In order to provide a greater variety' of designs u on the work it is found of advantage to ac justl the cylinder 145 with its patterns endwise relative to its operating stylus 150 whereby the position of each succeeding figure produced on the work may be varied. To accomplish this longitudinal positioning of the pattern roll I have rotatably mounted on the carriage a horizontally-disposed cam 166 on the stud 167 in position to engage the end of the contact pin 168 projecting from Vthe end Of the cylinder support 147.

wA step-by-step 'rotating motionvis impartedto this cam by the bringing up of the oscillatory rplate 169, which is mounted on the stud 167, against the screw 17 0 supported from the base 30. On this plate is mounted a spring-pressed paWl 171 Which engages the Yratchet teeth 17 2 which ratchet is cori'- nected to the cam 166 whereby at the end of each Working stroke the ratchet is caused to rotate the cam and through the'contact pin 168 move the pattern cylinder into the desired position longitudinally relative to its stylus 150. Y

By the use of my improved 'engraving machine I am enabled to produce any desired form of ornamentation which may be produced by a combination of lateral and longitudinal movements of the tool upon the Work.

I have shown and described a rotating cylinder for carrying different Vpatterns to fproduce different lateral vibrations of the tool upon the Work but I do not Wish to be restricted to this particular arrangement of pattern carrying devices as these lateral' movement controlling patterns Vmay lbe in anysuitable formand'carried and operated by any desired or suitable means.

By the use of my improved engraving machine I am enabled Vto mount any desired number of pieces of Work upon a reciprocating carriage and to simultaneously operate upon' all of said pieces, and simultaneously release said pieces and replace them by fresh pieces When finished and means are provided for automatically shifting the pat- `tern producing members to produce different designs upon the Jviorlr by both lifting the tool from the Work during the longitudinal operation of the same and also by producing Aa 'Wide variety of lateral vibrations to the tool or tools during its longitudinal Working stroke.

I have shown and described one form of mechanism for engraving different patterns upon the surface of the Work, but VI Vdo not Wish to be restricted to the particular mechanism herein shown and described ras I re'- serve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only `by the terms of the appended claims.

I claim :r Y L1. In an engraving machine, a Work-support, jan engravii'ig tool, 'means for produc-l ing a relative longitudinal movement of the tool vand Work during they tool operating periods, and 'means lfor automatically 'dis-V charging finished ivorlr from said support and positioning fresh `Work therein. p

2. In1 an engraving machine, a Work-support, an engraving tool, means for producing a relative longitudinal movement of the tool and Work during the cutting period,

means for arresting lthe action of the tool upon the Work after finishing the Work, Vand means for automatically discharging the finished Worl: from said support and positioning fresh Work therein.

3. In an'engraving machin'e,a carriage, means Vfor supporting Work on said carriage, a tool, means for moving said Work Y and tool relatively, means for automatically withdrawing said support from the Work when finished and positioning fresh Work thereon. f

4. In an engraving machine, a movable Work-supporting carriage,A means for rotatably supporting Work on said carriage, a relatively fixed tool, means for automatically discharging the Work vfrom said support When finished and positioning fresh Work thereon.

5. In ian engraving machine, a carriage, means for rotatably supporting AWork on said carriage, an engraving tool, means for moving the carriage with its Work relative to said tool, a Work-supporting magazine above the carriage, means for automatically discharging the'ivorlr from its support on the carriage When finished and positioning fresh Work on the carriage from said magazine. y Y

`6. Inv an engraving' machine, a carriage, means for supporting a plurality of separate pieces of Work on said carriage, a tool for operating upon each piece of Work, a Work-supplying'magazine for each support. and means'for automatically `discharging all of 'said pieces of Work simultaneously from said support when finished and positioning fresh pieces of Work from said magazines -to each of said supports.

' 7. In an engraving machine, a carriage, means for supporting a plurality of separate pieces of Work on said carriage, a tool for operating upon each piece of Work. and means for automatically removing all of said pieces of Work simultaneously from tieir supports when finished.

8. In an'engraving machine of the planer type. a carriage, a plurality of Work-supi porting mandrels on said carriage, a relatively fiXed engraving tool mounted to .operate 'upon each piece of Work carried by said mandrels, means for automaticall-yr withdrawing the mandrels from the Work When. finished, means 'for automatically positioning fresh Work and repositioning said 'mandrels in sai-d Work. Vand means for vcausing the tools to again operate uponth'e Work and repeat said cycle of operations.

9. In an engraving machine, a carriage, means for Vsupporting Work on the carriage, a tool, means for moving the Work 'relative to the tool. means for arresting the action of the vtool upon the Work when finished,

means for rautomatic'ally 'discharging the positioning fresh work thereon,-and means for again setting in motion the carriage with its work to subsequently repeat the said cycle of operations.

10. In an engraving machine, a worksupport, an engraving tool, means for pro-v ducing a relative working movement of they tool and work, a magazine, means for automatically arresting the action of the tool upon the work when the latter is finished, removing the finished work from its support, and replacing it with fresh work from said magazine, and means 4for again causing the toolto resume its action upon the work.

11. In an engraving machine, a work-support, an engraving tool, means for producing a relative working movement of the tool and work, means for ejecting the finished work, a magazine for carrying a supply of work, means for moving the magazine to present the work to said support, and means for replacing the discharged work with finished work from said magazine. Y

12. In an engraving machine, a work-sup-l port, an engraving tool, means for producing a relative longitudinal working movement of the work and tool, means for producing a relative lateral movement ofthe work and tool, and means for automatically discharging the Vwork when finished from said support and positioning fresh worlr therein.

13. In an engraving machine, a carriage,

means for supporting the work on the carriage, a tool, means for moving thewvorl; longitudinally7 relative to the tool, means for moving the tool laterally relative to the work, and means for automatically replacing the work when finished with fresh work.

14. In an engraving machine, a carriage, means for supporting the work upon the carriage, a tool, means for moving the work longitudinally relative to the tool, a pattern member for simultaneously producing a lateral vibration of the tool while acting upon the work, and means for automatically discharging the work when finished and replacing it with fresh work.

15. In an engraving machine, a tool mounted in a head, a laterally yieldable resilient support for said head, a longitudinally movable carriage for supporting the work, and means for imparting a lateral vibratory motion to said head while the tool carried thereby is moving longitudinally along the work. 1

16. In an engraving machine, a head for supporting the working tool, a pair of resilient arms for supporting said head, a longitudinally movable carriage on which the work is mounted, and means for eecting a lateral vibration of said head while the tool is in operation with the work.

17. In an engraving machine, a tool, a

carriage,fw'ork yrotatably mounted on said carriage', means including a clutch forrecipro'cating said carriage,'means for throwing out said clutch to stop the carriage at a predetermined point in the rotation of the work, means for automatically throwing in the clutch, andmeansfor locking the clutch whenin its in or engaging position.

f 18. In an engraving machine, a tool, a carriage', worlr` rotatably mounted on said carriage, means including a yclutch for reciprocatingsaid carriage, means for'throwing out said yclutch to Stop the carriage at a predetermined point in the rotation of the work, means for automatically descharging the finished work and repositioning fresh work V'in' said carriage, and means for automatically repositioningthe clutch to start the carriage when fresh work has been positioned.

19. In an engraving machine, a tool, a carriage, means for imparting a step-bystep rotation to thework on said carriage, means' including a clutch for reciprocating said carriage, means for throwing out lsaid clutch to stop the carriage Aat ay predetermined point in the rotation ofthe work, means for automaticallyreplacing the iinislied work withy fresh rwork, means for throwing inthe clutch to start the carriage, and means for locking saidy clutch yin .engaged position.l

20. In an engraving machine, a tool, a carriage, means for mounting a plurality of pieces of work on said carriage, means for siniultaneously imparting a step-by-step rotation to said pieces 'of work, means for` reciprocating' said carriage relative to said tool, means for throwing out said clutch to stopv the carriage at a predetermined point in the rotation of the work, and means for automatically and simultaneously replacing all of said pieces of work when finished with fresh work.

21 In anengraving machine, a work-support, an engraving tool, means for producing a relative longitudinal working movement ofthe tool and work, a series of cooperating patterns for also imparting a lateralvibration to said tool, and means for automatically positioning said members.

22. In an' engraving machine of the planer type, a work-support, an engraving tool, means for producing a relative wor ring longitudinal movement of said tool and work, a plurality of different'patterns, and means for automatically positioning said patterns to impart'different lateral vibrations to the tool while acting upon the work.

23. In an engraving machine of the planer I type, a work-support, an engraving tool, means for producing a relative longitudinal working movement of said tool and work, a roll carrying a plurality of spaced apart patterns, means for automatically rotating said:v roll to, selectiv.elyvl position. tliepatterin required, and: means for .engaging saidimein-- bers to impart the desired` lateral vibrationV to the tool, While. operating: upon` the Work.

24. In an engraving. machine, avviorlisupport, an engraving tool,pmeans for producing a. relativel longitudinal Working movement of said'tool and.Y Work, and patterns. for producing both a verticall and a lateral movement tothe tool during its ac tion upon the race of the Work.

25. In an engraving machine, aYWorksupfy port,4 an engraving tool, means for. producing a.relative longitudinal movement oi'' said tool and-work, and independently operable pattern members for producing both a ver.- tical'andi a lateral Working movement to the f tool during. itsaction uponface of the Work- 265 In anr engraving machine, av Worln. support, an engraving tool, means rorlmev-` 'ingthe work-longitudinally.relative to the y tool, a pluralityor pattern members for proport, an engraving tool, means for producf ing a relative longitudinal Working movement or said tool and Work, a seriesror pattern bars for obtaining a lateral movement or' theA tool relative to the Work, and independent means for producing a vertical movement ofthe tool duringits movement across the Jrace or the Work.

29. In an engraving machine, a Work-support, an engraving tool, means for producing a relative longitudinal movement of said tool and Work, a serieso pattern bars for obtaining a lateral movement ofthe tool relative tothe Work, independentmeansfor producing a vertical movement. otithetool during its movement across thetace off.;- the work whereby different figures may-,beipio duced intervalsalong thej lengthV ofthe work, and. means-.for automatically varying the longitudinal position of thebar to vary the relativeposition of thelgures,

30. In an engraving mach-ine, a Worlnsupf port. e115 engraving. tool, means 1 for predileing a, relative longitudinal movement of Asaid uio'rlrandv tool, apattern bar for imparting a` relative vibration to said toolvvhile operatingupon the racey or the Work, means for producinga relative lateral movement of the tool and Work, andmeans for producing an endivays movement of' said barY to change tool and: Work, and cam-actuated means for automatically raising the tool from the Work .at predetermined intervals.

324 In an engravingmachine, a ivorlesupport,ran engraving4 tool, means for producing. a, relative longitudinal movement of said tool; and Work, and a, longitudinallydisposedcam-actuated bar for automatically raising-the toolfrom the Work` at predetermined intervals.,V

33. In an engraving machine, a-VWorlr-support, an engraving tool, means for producing: a. relative longitudinal.A movement of the tool, and-iWork, arypatternrbar, and acam Jfor positioning said bar at predetermined intervals during the movement of the tool over the face of` the Work; to control the action ot the tool upon tlievvork. Y j

34, In an engravingmachine, alwork-support, an engraving tool, means for produc- .ing` a; relative longitudinal movement of said tool and Work, al pattern bar for causing the tool toengage the Work intermittently during a.. Working stroke,y and a cam for posi tioning` said. bar at predetermined intervals during the production of the pattern upon the face1 of the Work.

In an engraving machine, a head for supportingl a, plurality of. Working tools,

means..fonimparting a lateral movement to said head, cooperating compensating levers for yieldably supporting the tools in said head, and a. longitudinally reciprocating carriage for presenting the Work to the tools..

36. In an engraving machine, aV tool head, a plurality of tools mounted in said head, a laterally yieldable flexible support Jfor said head,` cooperating compensating rocking levers for yieldably supporting the/tools in saidhead, a. longitudinally movable `carriage for. presenting the Work to said head while the tools are. operating uponV the: Work.

In testimony whereofvl I aiiifrV my signa;

ture.

CHARLES. H. FIELD.

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