US845006A - Pen-grinding machine. - Google Patents

Description

No. 845,006. PATENTBD PEBc 19F 1907. G. MALPASS,

PEN GRINDING MACHINE.

APPLICATION FILED 00123. 1905.

z SHEETS-SHEET 1.

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PATENTED. FEB-"19, 1907.

lG. MALPAss. PEN @BINDING MACHINE. .APPLOATION PILEDDOT. 3, 1905.

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GEORGE Matras-s, -or PHEADELPEIAPENNSYLVANIA.

-PEN-GRINDING. MACHINE.

No. s454506..

Yspecification of Lettere raeentf'- .xppumionhea ombefaieo's. smalle. 281,116. .l

rammed Feb. 1,9, 1907.

.To all whom it may concern:

Be it known that I, GEORGE MAL-Pass, a

citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, -have invented a certain new and useful Improvement in Pen-Grinding Machines, of which" the following is a specification.

My invention relates to a new and luseful improvement in pen-grinding machines, and

has for its object to provide a machine for grinding the back of pen-points much more quickly and eifectively than the same can be done by hand, and atthe same time rock the pen-pointback and forth concentric with its curved, surface, so that the back of the penpoint will be evenly ground and all of the pens will be ground uniformly.

v With these ends in view this invention consists inthe details of construction and combination of elementsy hereinafter set forth and then speeiically designated4 by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make' and use the same, the construction and operation will now be described in `detail, reference being had to the accompanying drawing, forming a part of this specification, in W 'ch- Figure l is a plan view of my improved 'pen-grinding machine; Fig. 2, an enlarged ongitudinal section through one of the penholders; Fig. 3, a section taken on the line 3 3 of Fig. 1.

It is a well-known factthat in order to .have the ink flow freely upon a steel pen the back of the same must be ground by means of anv emery-Wheel. This has heretofore beenv accomlished by hplding the convex surface of t e back of the pen against the periphery of a revolving emery-wheel and turni propery ground; but this process requires skilled labor and is comparatively slow. The machine which is the'subject of this application will grind the back of the pen uniformly and, vmuch more effectively and quickly than can be done by hand, and I will now describethe operation of the machine in detail. A represents the frame of the machine, which may be of any suitable shape or design, and secured in the, standard A', -arisi from the frame of the machine, is a horizonta axle B, upon which is journaled a rotary pencarrier C, adapted to berotated intermitthe pen by hand until the back is scribed. This rotary pen-carrier consists of two plates C and C2, arranged a slight distance apart and secured one to 'theothen Arranged around the peripheryfof the pencarrier at equal distance apart are en-holding devices, each of which are v identicallythe C2 of the carrierlan being journaled therein.

` Upon one, end of thev tubular shaft D outside of the plate 'C2 is arranged a biurcate'd bearing D', and between the two prongs of the biurcated bearing D is arranged the two pen -fholding jaws E. The se pen holding jaws E are both identically the same and are on the principle of a pair of pincers, the tail or inner endoi` the'jaws being crossed and pivoted together, the same pivot which pv- -Qts the jaws together alsoextending throu h the prongs of the bifurcated bearing D. T e jaws are normally held together by means of springs F, arranged upon each side of the jaws, one end of each spring being connected to one jaw 'and the other end to the other jaw. These springs also hold the inner end or tail pieces of the jaws in contact with one another, and it will be seen that if the inner ends of the jaws are spread apart the outer end or pen-hol portion of the jaws will also bespread. or the purpose of spreading or opening these jaws at predetermined timesl I provide the plungers G, which are adapted to slide longitudinally through the tubular shaft D, the inner end of these plungers being wedge shape, as indicated at G',

and when pressed inward will enter between the tail ends of the jaws E and spread them aparti Secured upon the tubular shaft D in between the plates C" and C2 are the gears II;

I' represents the emery-Wheel, which is adapted to be revolved on a horizontal axle by any suitable means, here shown as by a belt -I .j This emery-wheel is so arranged that the periphery of said wheel will come in contact with the back of a pen-point held in one of the pen-holding devices which is nearest to the emery-wheel. Thus the pen-car- .rier is revolved intermittently, and one after the other of the pen-holding devices containing a pen is presented to the emery-wheel, and the pen-carrier rests'a certain length of. time between each! of these intermittent movements, and while thev pen is in contact with the rotating emery-wheel the pen-holding device 1s rocked backward and forward tentlylby means which will be hereinafter delsame and each consisting of a tubular shaft `D,A extending thro h the two plates fC. and 65 y IOO " through a certain number of degrees, so that the whole convex surface of the pen-point` will be brought into contact with the emery-A wheel. l

plish by means of a vertically-sliding recipro- This rocking j movement I accomcated rack-bar J, which is adapted to slide in suitable bearings arising from the frame of the machine. -As each pen-holding device comes into position, so that the pen it carriesA is brought in contact with the emery-wheel, the gear-wheel` H, secured lto the tubular shaft D of this particular pen-holding device, also comes in mesh with the constantly-reciprocating rack-bar J, and as this rack-bar J is reciprocated vertically it will be seen that the pen-holding device will-be-rocked backward' and forward upon the. tubular shaft D and all parts ofthe convex surface of the penpoint will be presented to the'emery-wheel I.

device, one end ofthe spring being attached to the bifurcated bearing D' and the other end to the jaws,'so that the spring tends to rock the jaws upon the pivot E' outward toward the emery-wheel.

` L represents the'power-shaft, which is journaled in suitable bearings in the framework of the machine, and this shaft may be driven from any suitable source of power, preferably by means of a belt and loose pulleys L'.

M is a gear-wheel secured upon the powershaft L, which meshes with the gear-wheel N, secured u on a counter-shaft N', also journaled vin t e framework of the machine.

O is a ratchet-wheel secured to the pencarrier'C and provided with as many teeth or notches as there are pen-holdingdevices upon the carrier.

Pis a lever pivoted upon the shaft B and provided with the 4pawl P', adapted to engage the ratchet-wheel O.

LQ is a link connected at one end to the lever P and'at its lower'end to a lever R, pivot'- ed to the framework of thel machine. This lever R is provided with'a roller R', adapted to beheld in contact, by means of a spring R2, with the cam S, secured upon the shaft N. Thus each .time the'cam S rotates, 'so as `to rock the lever R, the lever I will be rocked', and thelp'awl P', engaging thel ratchet-wheel.

O, will move the pen-carrier one step. In order to prevent the pen-carrier from moving farther 'than the predetermined distance at each step, the plate-v C' is provided with notches C2,.and the pawl C3, pivoted to the framework of the machine, is adapted to e11- gage said notches, the pawl being disengaged rom the notcheseach time the pen-carrier is about to he moved by means of acam T, secured upon the shaft L, engaging the tail end of the pawl C3. l

order that the`pen-po'int may be held in' sprin contact with the emery-wheel, I provide t e springs K, one for each pen-holding` passing around the fast U is a small gear-wheel journaled in suit-f able-bearings secured to the' framework of the machine, andl Lthis gear-Wheel meshes with the gear-wheel M, and upon the same shaft as the gear-Wheel U is'a crank-disk U',

to which the lower end of the'link U2 is eccentrically connected. The -upper end of said -link' U2 is cnncctd tofthe reciprocating rack-bar J, and as the crank-disk U' "is-reemery-.wheel as the grinding .is being done,"so l that instead of grinding away. a line upon the pen a ,considerable length of surface will be ground, and the length of the surface ground r will depend upon the movement given the emery-wheel.` To accomplish this oscillating movement of the emery-wheel, I provide a plate V, adapted to rest upon the top of the framework of the machine, vandthis plate V is pivoted to the frameworkiof the machine coincident with and directly below the point where the periphery o f the emery-wheel touches the convex sjn'face of the pen-point, as will vbe seen in Fig. 1. Arising from the plate V; are the standards Vi, in the upper ends of. which the emery-wheel is journaled. The plate V is j ournaled to the framework of the machine by means of an ladjustable bearing consisting of a slide-bar W, mounted to slide. laterally in a suitable guideway secured to the frame of the machine, and thus the pivotal point of the plate V` can be. adjusted toward or away from the pen-carrier, as desired. v

In order to voscillate the plate V' so asto move the emery-wheel, I provide a leverfX, pivoted intermediate of its two ends to the framework o flthe machine, one end being pivoted to the plateV and the other end being provided vith a roller X', lying vsithin the groove of a cam Y, which cam is secLred to the power-shaft L.v rIhis cam Y is so con? strticted as to oscillate'V the plate V in the' proper manner, so that the emeryfwheel "will each side of theprojection before nlentioned byj-means. ofthe springsa, and, th I the tension of the springs i pon each SideV of the prof' jection serves to Aalways hold'the pen-holding devices in their proper radial position.

.In the operation of the machine as the pencarrier revolves the jaws of one set of pen'- holding devices are opened at a predetermined point before the emery-wheel has been A pen at the point 2 in Fig. 3. The opening of the jaws, as before described, is accomplished by the pressing inward of the plungers G, and this can be done by any suitable means, either by means ofstationaryy cams or movable cams operating suitable levers. In the drawings both ways are shown, as the stationary cam b, secured to the framework of the machine, as shown in Fig, 1. is utilized for opening the jaws to receive the pen-point, and a lever e, operated by a cam vupon the back of the cam S, is utilized for opening the jaws .to release the pen point. As the springs K tend to throwthe jaws outward toward the periphery of the pen-carrier, the pen-'points would be brought into contact with the grinding-wheel too early if some pro` vision was not made to guard against this. Therefore I providea shield f, which extends over the edge of the grindi above `the point where the grin ing is done, as shown in 3. This shield is supported from the frame of the machine, and when the pen-carrier rotates'the pen will come in contact with this shield and will not come in contact with the grinding-wheel until it passes carrier.

from oii the lower end of the shield, and then the pen is in the proper position for grinding.

As seen in Fig. 1, the support which supports the shield f extends for a short distance parallel with the pegfffier, as Shown at g- 'Ihis portion g is arranged in such a position that if the pens have not been fully inserted within the jaws this portion g will either push them into their proper position or if they are out too far the pens will strike this portion g and be thrown out ofthe machine before any grindinor is done, so that they can-be again inserted properly without wasting the pens. It will :thus be seen that in the operation of this machine no skilled labor is required, it

being o'nlyvnecessary for the operator to in#- sert apen-point in the openjaws at the point 1 at each step in the revolution ofthe pencould be accomplished automatically; but that forms no part of this invention. As soon as the lpenpoint is inserted between the o en jaws t e next time the carrier revolves t e jaws instantly close as the plunger Gj runs off the cam b, and the around step by step unti it 'comes in contact with the emery-.wheeh where it is rocked and the convex surface is ground, and thenon a -wheel just Of course-this feeding of the pens pen-point is carried continued movement of the carrier when a certain'point is reached lthe jaws are automatically opened and thefpen-point released.

It will thus be seen that the machine is entirely automatic and that each pen-pointl is ground uniformly, exactly the saine length of'surface-be' Aground each-tima andcan be done in one-thirdof the time. required toy accomplish it in the old way by hand.'

vOf course I do not wishjto be limited to the exact construction here shown, as slight modifications could be made vv'ithout departing from the spirit of my invention. z

` Having thus -fully described my invention,

what I claim as new and useful is- 1, In a pen-grinding machine, a rotary grinding-wheel, a pen-holding device adapted to hold the convex surface of the pen-point in spring contact with` the grinding-wheel, the pen-holding device consisting of springactuated jaws' grasping the-pen, means for automatically spreading these jaws at predetermined times for the insertion and release of -the pen, and means fcr'rocking the pen-holding device while the pen is incontact with the grinding-wheel.

2'. In a pen-grinding machine, a rotary -A grinding-wheel, a pen-carrierMtWo orginore pen-holding dGVCeSfLITafng-ed upon A l carrier, means for lmoving the carrier intermittently so that the pen-holding ydevices are brought successively into such'a" position that the convex surface of the en-point held in the pen-holdingl device wil come lin contact with the grinding-wheel, means` for rock- IOO ing the pen-holding device which holds the pen being ground while said pen is in conv tact withy the vgrindingfwheel, and means for automatically releasing the pen` after `the same is ground. j .17:

v3. In a peni-grinding machine, a4 rotary grinding-wheel ya pen-carrier, a vseries of penholding devices arranged upon the carrier at equal-distances apart, each pen-holdingdevice consisting cf a pair of spring-closed jaws adapted to grasp the pen, means for moving the carrier intermittently so'as to bring the pen-holding devices successively in' such a position that the convex surface of the/pen will come in contact with the periphery of the grinding-wheel, means for rocking the pen-holding device while the pen is being ground so that the whole of the convex` surface is presented yto the grinding-wheel, means for automatically spreading. the jaws at predetermined times for the insertion cf the pen andthe release-of the same, and means Vfor oscillating the y.grindin, ;wheel laterally, the pivotalfpcint from `lwhich said Wheel oscillates being coincident with. vthe point where the., periphery ofthe grinding` wheel touches the pen while grinding.

4. In a machine of `he character described, a rotary'grinding-wheel, a pen-carrier .provided witha series of pen-holding devices,

means for "said ,pemcarrier intermitten Y sofas tosuccessively'bringtheconace 'nf :the :pen-points .held `by the pen-holding.deviceszintoicontact with the'periphery of the glindingewheel, means for .rocking ,the pen-holding 4device during the .time Ythe :pen is being .Yground, a lmovable bearing-fname :irziwhiclivthe .grinding-wheel is main frame 'at ,-.a vpoint coincident with .the i point 4Where .the .grinding-.wheel :touches -fthe pen ybeing, ;1'o.un^d,.and means -for .oscillating .the amovable bearing-frame and 1:5 wheel in a-lineparallel with the'sliat of the grinding-wheel.

5. dnza pen-grinding machine, a .main fname, afrotary grinding-wheel adaptedto be .constantly revolved, :a rotary pen-carrier so journaled insuitable bearings '.in -the ymain .e5 actuatedjaws adapted'to'grasp thepen, said' :3o .the ,periphery =.o`f the grinding-wheel, means frame, a series of peneholding devices arranged upon the carrier'nearztheperiphery of the :same -equal .distances apart, each ,-penholding devicey oonsistingof a vpair of Aspringjaws being journaled .in ithecarrier, means for-.movingthe can'icrintermittentlyso as to A.hringthe .eon'vexsurfaee of thepenheld inl the gpen-holding' devices successively against fcrircckingthepenfholding devicesawhile the 4permis being ground so thatthe whole of the .convex suraee will ybe brought in contact with the .grinding-wheel means .for holding thefpenfin springicontact with the grinding- Wheel, :means .for holding Ithe pen-holding devices in'l their normal position when :not being-2 rocked ,l means for automatically opentheijawsat't redetermined timesfor the 41o insertion and re easing of the Zpens, means yfervescillatingthe:grind.ingvvheel in a plane lparallel Iwith ifts;shat, thei pivotal pointfrom .which .the same 'esci'llates being coincident with ..the point of -,:contactof the grindingwheelandipenzbeingground.

L6. Ina machine ofthenharacte'r described, 1a rotary=grinding-'Mice1, a pen-carrier in cnmbinatinntherewithadaptedy to carry the .pens .and -successivelybring thel convexsurperiphery otthe grinding-wheel, a main fname,

alnovabie bearingframe: in Whinhthe y inding-wheel .is .journaled, the movable aine nemg adjustablyspivotedto the'main framev each.penPhclding-devicetconsisting of apairgrindingce ofsaid, pens. into* spring contact with. the

ipa-rallel with .the ing miachinegthe combioffspring'-factuatedA jaws adapted to .graspthe pen, :La bearingfor the jaws journaledin .the pen-'carrier plate by extending. transversely .therethrou h, the jaws being ivoted .together an also -pivoted 1t o .t e bearing, spring vmeans for .holding the penfholding ,devices in their normal position and still at l.the `same ntime allown Vvthem to be rocked,

means forinterz'iittent yirevdlving the penii carrier so `as to bring the .convex 4surface of the pen-'points Aheld in the "jaws-.successively against the periphery of thegrinding-Whee springs tending Yalways to orce the jaws holding the pens toward .the i eriphery of the pen-carrier plate so that t e pens will beheld in springcontact with the grindlngk-wheel, means for automatically opening the jaws at predetermined times, a gear-.wheel secured u on the shaft-of each pen-holding device, W 'ch shaft passes-through thepencarrying plate, a .reciprocating rack-barL means for constantly reciprocating said rackfbar, said rack-.bar `so located that the ,gear-.wheel o'f the pen-holding device will be brought inmesh with the same at the same time-'the penfpoint is brought in contact-With the grinding-wheelso that the reciprocation offthe rack-bar will rock the gear-wheel and consequently rock the pen-point, means for automatically locking thepenvcarrier While it .previous tothe time when it is to be moved, asspecied. l

A18. :Ina pen-grinding machine, aconstantlyrevolving and constantly-oscillatinggrindingwheel, in combination with a .rotary pencarrier adapted to successively bring the convex surfacesof the pens against the periphery of the grinding-wheel, said pen-carrier consistingof two disk-shaped plates secured .together and journaled in suitable bearings .is stationary and unlocking lthe same just parallel Withthe shaft of the grinding-wheel,

a series of pen-holding devices arranged upon the carrier,` eachl pen holding vdevice consisting of--a bifurcated hearing secured u on theend of a=.tubular.shaft, said tubular s aft extending transversely through the plates oflthe` carrier and being journaled therein, a

:wwhel secured upon the .tubular shaft between the plates, a pair of jaws pivoted TIO -between'the prongs of the bifurcate'd bearing, said jaws consisting of two crossed levers, said .levcnsbelng pivoted together upon the .'samepivot'which pivots-*them to the bearing,v .srings tending .to hold the jaws closed so at-thepen-will'be grasped by a springpressure, -a spring. secured at one end to .the bifnrcated bearing and at th other end toe thejaws tending. to rock the jai s outward 'toward'the-'periphery of the carrier,"a plunger adapted to slide within the tubular shaft, one end ofthe plunger norntlally extending `beyond the tubular shaft, the innerend of adapted to' enter between the heel .end of` f'therplunger being formed wedgeshape and the crossed levers forming the jaws so as to spread'the jaws when the plunger'is pressed inward, means for limiting the movement of the plunger, means for pressing the plunger inward at predetermined times to open the jaws, spring means for holding the jaws radial and at the same time allow them to be rocked upon the shaft, a constantly-reciprocating rack-bar with which the gear-wheels of the pen-holding devices are adapted tomesh when the pen-point isbrought in con tact with the grinding-wheel, as specified.

9. In a pen-grinding machine, a constantlyrevolving and laterally-oscillating grindingwheel, an interniittently-rr-oved pen-carrier, pen-holding devices arranged u on the carrier, the pens held in the pen-ho ding devices adapted to be successively brought in contact with the grinding-wheel and rocked While in Contact, in combination with'the 'mechanism -for accomplishing the various movements of the machine.

10. In a pen-grinding machine, the combination of an intermittently-moving pen-carrier and rotating grinding-wheel andl penholding devices adapted to hold the pens in spring contact with the grinding-wheel, with means for preventing the vpen from coming in contact with the grinding-wheel until the proper `time for grinding, and means for removing the pens from the jaws if they have not been properly inserted or for pushing them into the jaws in their proper position.

In witness whereof I have hereunto affixed my signature in the presence of two subscribing witnesses.y f

l 'GEGRGE PASS. n Witnesses:

MoRTlMER A. Jonas,

1E R. Masses.

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