US1296900A - Magazine-pencil. - Google Patents

Description

J. B. ZIMDARS.

MAGAZINE PENCIL.

APPLICATION men JUNE 22. 1915.

Patented Mar. 11, 1919.

2 SHEETS-SHEEI' I.

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WITNESSES.- INVENTOR. zamd A TTORNEY.

' J. B. ZIMDARS.

7 V MAGAZINE PENCIL. APPLICAflON FILED JUNE 23, 19l5- 1,296,900. Patented Mar. 11,1919.

2 SHEETSSHEE 2.

WITNESSES- INVENTOR.

JOHN B. ZIMDARS, SAN FRANCISCO, CALIFORNIA.

mnenzmrmwm Specification of Letters Patent.

Patented Mar. 11, 1919.

Application filed June 23, 1915. Serial No. 35,768.

To all whom it may concern:

Be it known that I, JOHN B. ZIMDARS, a citizen of the United States, and a resident of the city and county of San Francisco, State of California, have made a new and useful inventionto wit, Magazine-Pencils; andI do hereby declare the following to be a full, clear, concise, and exact description thereof.

The invention contemplates improved sharpening means easily adjustable on and to a pencil for pointing the lead.

The invention contemplates a magazine pencil with improved sharpening means arranged on the pencil for pointing the lead.

T e invention also contemplates means for adjusting the lead and then firmly clutching the same, and, while so clutched, for sharp ening the same, and for-projecting the point beyond the pencil body for use, and for withdrawing the lead point of the pencil within the body of the pencil without unclutching or readjusting the lead.

The invention also contemplates a magazine pencil adapted to contain different leads, any one of which may be projected from one end of the pencil for use or withdrawn within the pencil and another lead projected for use.

The invention also contemplates a combi nation intoone pencil of all said principles and contrivances.

' Infliis specification and annexed drawing, I disclose the invention in the form which I consider the best, but I do not limit myself to such form because the invention may be embodied in other forms, and it is to be understood that in and by the claims following the description herein, I intend to cover the invention in whatever form it may be embodied.

Referring to the drawings:

. Figure 1 is an exterior view of the pencil ready for use. a I

Fig. 2 is'a lon itudinal section of the pencil with the lea projected beyond the body of the pencil for use.

Fig. 3 is a longitudinal section of the pencil with the lead withdrawn within the body 5 of the pencil. I

' Fig. 4 is a longitudinal section of theipen cil-with parts in the position for pointing the lead.

Fig. 5 is a cross-section of the pencil taken on the line m" m of Fig. 4. l Fig. 6 is a view of the sharpening element.

Figs. 7 to 9 inclusive are views illustrat ing a modified form of sharpening element.

Figs. 10 to 12 inclusive are views illustrating another modified form of sharpening element. Figs.13 to 15 inclusive are views illustrating another modified form of sharpening element. 1

Fig. 16 is an elevation of the lead tube.

Fig. 17 is a section on the plane of line w"-m of Fig. 16, and

Fig. 18 is a side elevation of the pencil with the casing omitted.

In the drawing, 1 designates a tubular body, one end of which is tapered to a diameter slightly larger than a lead so that a lead will pass therethrough. A lead magazine 2 extends within and is mounted in the pencil body to move longitudinally and to rotate with relation to the body for the purpose hereinafter set forth. Said magazine comprises a plurality of lead compartments 3, 4 and 5, in which leads 6, ,7 and 8 are adapted to rest respectively. Walls 9 extend transversely of the magazine which form the end walls of the compartments 3, 4 and 5. Extending centrally through the magazine 2 and "walls 9 and reciprocatively and rotatively mounted in said walls, is a lead tube 10, which is provided with a longitudinal slot 11 adapted to be brought into registration with the magazine compartments 3, 4 and 5 respectively so that the lead in any of said compartments may drop through said slot into the tube as will be hereinafter more fully set forth.

A clutch 12 is provided at the lower end of the tube 10 and magazine 2 for clutching the lead and holding it in position for use and in position while the point is being sharpened as will be hereinafter more fully setforth. Said clutch comprises preferably three jaws 13, formed on the lower end of the tube 10, a cam 14 formed with each jaw and an outwardly flaring collar 15 formed considerable gripping surface so that thieiiiy may grip the lead positively and mos ciently so as to prevent the leadbeyond'the clutch, when the point of. the lead is projected through the reduced end of the body 1 into position for use, from bearing sidewise against the body and breaking.

A lead sharpening element 20 is rovided at the tapered end of the body 1. gaid element comprises a pair of sharpening members 21, a pair of spring fingers 22, to one end of each of which fingers is secured one of said sharpening members, and a band 23 to which the other ends of said fingers are secured diametrically opposite each other.

-or removed from the body. Normally the sharpening element rests in an upper position on the body 1, in which position the sharpening members 21 are at the upper ends of the slots 24 and are spread apart by the spring action of the fingers 22 so that the lead may extend between them. The sharpening element is prevented from moving downwardly or upwardly on the body out of its normal position by the engagement of the band 23 by a dog 26 on the body. The dog 26 has a shoulder 27 for engaging the upper edge of the band to prevent up-' ward movement of the element and an embossment 27 for engaging a socket 27 in the band to prevent downward movement of said element. By moving the band 23 toward the lower end of the body the sharpening members 21 are moved to the lower end of said body and brought together by their engagement with the tapering inner surface of the body into position to sharpen or oint the lead as will be hereinafter descri ed.

The sharpenin members 21 are introduced into the b0 y 1 or removed therefrom through the openings 25. In order to do this the dog 26 is pressed lnwardly out of engagement with the band 23 and then the sharpening element is moved upwardly until the members 21 register with the openings 25. The band 23 may be slipped on and off the body over the lower end thereof.

The relative longitudinal movement of the magazine 2 within the body 1 enables the magazine to be moved farther into the pencil body or the body to be drawn or re tracted on the magazine to project the point of'the lead beyond the end of'the body in writing position, or the magazine may be moved outwardly in the body or the body extended on the magazine to bring the point of the lead within the end of the pencil body into sharpening position in said body.

A spring clip 28 is mounted on the upper end of the pencil body and is provided with a dog 29, which dog is adapted to project into an annular oove 30 to hold the magazine within the iddy, or the body retracted upon the magazine, with the lead projected through and beyond the tapered end of the body into writing position, and which dog is adapted to engage a wide annular groove 33 on the magazine 2 to hold the magazine and point of the lead within the body 1, or the bod extended on the magazine beyond the lea when the pencil is not in use and with the lead in position to be used and while the lead is being sharpened by the sharpening element.

By pressing the clip 28 toward the body 1 the dog 29 is disengaged from said thumb wheel 31 so that the magazine may be moved upwardly with relation to and out of the body. The lower end of the clip is adapted to engage the up er portion of ones pocket to hold the pencil within the pocket in the usual manner.

When the dog 29 is at the lower portion of the wide groove 33 and the sharpening element 20 has been moved to the lower end of the body 1, the lead may be released and permitted to drop into said sharpening jaws, which thus age the proper point at which the lead shafi be clutched.

The groove 33 is of suflicient width to permit the pressing of the lead when in clutched position, from the upper point of the sharpening jaws to the lower point thereof; and the thumb wheel 31 is of the width that the point of the clutched lead is to be extended beyond the point of the pencil for use; and groove 33 is slightly deeper than groove 30 which is just above the thumb Wheel 31, so that when dog 29 is in this latter groove it has a tendency to keep the parts from turning on each other.

The upper end of the magazine has a thread 39 formed thereon on which screws a nut 40. The nut is provided with a knurled thumb wheel 41 whereby the nut is turned. A head 45 extends within the upper end of the nut 40 and a tube 46 is secured to the lower end of the head which tube is provided with a thread 47 at its lower end which engages a thread 48 in the upper end of the lead tube 10 to couple the two tubes together. A coupling element 50, preferably hexagonal in shape normally fits within a correspondingly shaped opening 51 in a wall 52 extending transversely of the upper end of the magazine 2 whereby the tube 10 is coupled to the magazine 2 so that the tube will rotate when the thumb Wheel 31 and n'lagazinc 2 are rotated for the purpose herelnafter described. A coil spring 55 surrounds the tube 46 and its ends bear against the wall 52 and the inner end of the head 45 whereby. the element 50 is maintained within the opening 51 of said wall and the tube 10 rotatively coupled to the magazine 2, and the cams 14 are maintained in engagement with the collar 15, which causes thejaws 13 to grip the lead. An annular flange 60 is formed on the exterior of the head 45 which is adapted to be engaged by the upper end of the nut 40 to more firmly draw the jaws 13 and the cams 14 to the collar 15 thus tightly clutching and locking the lead.

The element '40 is a sleeve threaded on the upper threaded part 39 of the magazine 2,

and the upper .extension of the sleeve 40 turns on the lower hollow cylindrical extension of the head 45. It is to be noted that the head and its lower extension and the sleeve 40 and'its upper cylindrical extension are sectioned lined differently to indicate that they aremovable'relatively. As shown in the drawing, the pencil holder 10 is forced up by spring to the limit of its movement, said upward movemen-tbeing limited by the engagement of part 14 with the lowermost end 15 of the magazine 2. The sleeve 40 is screwed upwardly on the part 39 until the top of the upper cylindrical extension of the sleeve 40 engages the under side of flange of head 45, preventing downward movement of the head 45 and lead holder 10, and locking the cam 14 upwardly against the magazine extension 15, and the jaws 13 in gripping position, gripping the lead. In order to disengage the jaws 13 from the lead, the sleeve 40 is turned to move down on the part 39, so that the top of the upper sleeve extension moves below the lower side of the flange 60, and the head 45 may then be depressed against the tension of the spring 55 until the out 50 disengagesthe part 51, and the cam 14 disengages part 15', whereupon the jaws 13 release the lead. With the nut 50 depressed below the part 51 the head 45 and holder 10 may he turned within the magazine 2, the lower extension of head 45 being adapted to turn in the upper cylindrical extension of sleeve 40. In all of the views the sleeve 40 is shown in looking position with its upper extension engaging the under side of flange 60.

Suitable characters such as the numbers 1, 2 and 3 are placed on the magazine respectively adjacent the compartments 3, 4 and 5 to indicate the kind of lead in each compartment. The body 1 is provided with slots adapted to register with and expose said The cuttin edges 21 of the cutting element 20 pre erably extend'in a plane inclined with relation to the axis of the lead to give said edges a most eflicient cutting action, and are in opposite directions in the two opposing sharpening members.

The sharpening members may have flat surfaces upon which the cutting edges are placed, but are referably concave at their upper ends, gra ually flattening toward the point at which the two opposing surfaces meet when in cutting position; the concavity to conform to the conical point of the lead.

The operation of the pencil is as follows: Assuming the body 1 to be partiall removed from the magazine, the di erent leads 6, 7 andS, which may be of different colors, degrees of hardness, or difi'erent in other respects, are placed respectively in the magazine compartments 3, 4 and 5. The body 1 is then slipped upward over the a magazine so that the dog 29 engages the wall 52, (the cams 14 will then 'also disengage the collar 15 so that the jaws 13 will e in their releasing position) the head 45 is then turned, turnin with it the tube 10, until the mark 67 on tl e head registers with the character on the magazine indicating the desired lead, in which position the slot 11 in said tube registers with said'uppermost. compartment containing the desired lead, whereupon the lead in said compartment drops through said slot into the tube 10. The sharpening element is then moved downwardly to its lowermost position on the body 1. The magazine is then turned vertically and the head 45 pressed thereby disengaging'the cams 14 from the grip of the collar 15 and releasing the grip of the of tube 10, which is its position for use.

The head 45 is then released and the spring 55, expanding, forces the head 45 upwardly with relation to the magazine until the cams 14: engage the collar 15 so that the jaws 13 grip the lead and the coupling element 50 enters the opening 51in the wall 52 and couples the tube 10 to the magazine 2 so that they will rotate together when the magazine is rotated. The lead is then locked in clutched osition and the magazine and tubes 46 ant 10 locked rotatively by turning the nut 40 until the nut threads and to move together in the body 1 as a unit.

The lead may be sharpened or pointed when the point of the lead is within the body 1 as above described, the sharpening element 20 having been moved downwardly to its lowermost position on the body 1, in which position the lower edges of the cutting surfaces of the sharpening members 21 rest adjacent each other, while the concave cutting surfaces above the lower edges of said members provide a conical space between them corresponding to the conical point which it is desired to sharpen on the lower end of the lead. In this position of the sharpenin members 21 the lowermost extremity o' the lead which is clutched in the tube 10 lies at their upper edges. In this position of the parts the thumb wheel 31 isvthen grasped by the operator and turned, which turns the magazine 2, tubes 46 and 10, clutch 12, and the lead clutched thereby, and at the same time, by pressing down on the thumb wheel 31, the

magazine, clutch, and lead are pressed downwardly so that the cutting surfaces of the sharpening members 21 engage the clutched lead, and by such turning and pressing action the lead is sharpened. The lead when clutched on the magazine and within the body 1 may be projected beyond the end of the body in position for use without unclutching the lead simply by disengaging the dog 29 from the groove 33, by pressing the cllp 28 toward the body 1, and

' then sliding the magazine down in the body 1 until the dog engages the annular groove 30, and the lead may be again withdrawn into the body without unclutching by disengaging in the same manner the dog 29 from the thumb wheel 31 and sliding the magazine up in the bod 1 until the dog engages the groove 33. n this position of the parts the dog 29 will engage the side edges of the groove 33 and prevent the oint of the lead from being PI'OJGCiZGd beyon the end of the body 1 and the body from being slipped off the magazine.

The assemblin of the magazine 2, tubes 10 and 46, coup mg element 50, spring 55, and head 45, is accomplished by the coupling ofthe tubes within the magazine.

The modified lead sharpening element shown in Figs. 7, 8 and.- 9 comprises a pairof slides 71 located in slots 72 in the lower tapered end of the body 1, which slots extend longitudinally of the body, andithe edges of the slots form guides upon which said slides are slidably mounted. The slides 71 are provided with inner cutting surfaces 73 preferably in the form as heretofore described, for sharpening a point on the lead as will be hereinafter more fully set forth. Said slides are connected with a flexible band 74 so that they will slide together and may move toward and away from each other as they slide along the tapered end of the body 1 into or out of cutting position.

In the modification shown in Figs. 13 to 15 the sharpening element 75 comprises a pair of sprin tongues 76 formed on the tapered end of the body 1 on the lower ends and on the inner faces of which are a pair of opposed sharpeningmembers.73'. The spring action of the tongues spreads the slnu'pcning members apart so that the lead may extend therebetween in position for use. A ring 78 surrounds the body 1 and tongues 76 and limits the outward, spring action of the tongues so that the tongues are mail taincd in proper alinement with the body when the sharpening element is not in use.- Said tongues are provided with lugs 75) which project through slots 80 in the ring 78 when the sharpening element is not in use. Lugs 81 in the body 1 engage the edges of the ring 78 and permit the ring to be turned on the body without sliding longitudinally thereon. Upon turning the ring it engages the lugs 79 and presses the tongues inwardly and the sharpening members 77 into sharpening )osition.

Another modihed sharpening element 85 is illustrated in Figs. 10 to 12 inclusive. In this form of sharpening element a pair of levers 86 are pivoted at 87 on the body 1 and carry sharpening members 88, which rest in the lower end of said body. The upper end of said levers extend over a: ring 88', which surroumlsthe body 1. Said ring is provided with depressions 85), in which the-upper ends of the levers normally rest, in which position the lower ends of the levers are swung outwardly, and the members S8 swung apart, so that the lead may extend between said members and out of the lower end of the body for use. The depressions 89 of the ring extend into slots 90 in the body 1', which slots extend in the body in a circumferential direction, so as to permit said depressions 89 andthe ring 88-to turn on the body. When the ring is turned so that the periphery thereof engages the upper ends of the levers 8-6, said upper ends are swung outwardly and the lower ends of said levers are swung inwardly and the sharpening members 88 together in sharpening position. The engagement of the depressions 89 with the sides of the slots 90 retains the ring in operative position on the body 1. i

I claim 1. In a pencil, a body, a lead magazine mounted within said body to move longizine in position with the lead projected beyond the end of the body.

2. In a pencil, a magazine for containing the lead, means for clutching the lead while the lead is projected beyond the magazine, a body inclosing the magazine, a sharpening element on said body adapted to sharpen the point of said lead, cutting edges on said sharpening element extending at an angle to the axis of the lead and in opposite directions to each other, said sharpening element when in position for sharpening also formin a gage for determining the length of the ead that shall extend beyond the end of the-magazine for use, and means for proygztlng the point of the lead beyond said dy into position for use.

3. In a pencil, a magazine, means for clutching a. lead in the. magazine extended beyond the end of the magazine and means for locking the clutch in position clutching the" lead, a tubular body adapted to 'inclose arms secured to said ringant said magazine and permit .the point of the clutched lead to extend beyond the end thereof, and a dog for engaging and holdmg said body in an extended and in a retracted position on the magazine.

4. In a pencil, a magazine, means for clutching a lead in the magazine extended beyond the end of the magazine, a tubular body adaptedto inclose said magazine and permit the point of the clutched lead to extend on the end thereof, a springclip on said ody, a dog on. the upper end of said clip, a art on said magazine adapted to be engage by said dog to hold said body on said magazine both in the extended and in the retracted ositions, said dog adapted to disengagesai part when said clip is pressed toward said body.

5. In a pencil, a body, a clutch for clutching and locking a lead extended beyond the end of said body, said body being provided with a pair of slots extending u wardly from a point near the lower end of tlie body, a sharpenmg element comprising a. ring slldably mounted upon said bod a pair of l extending through said slots, apair of shanpeningmembers secured to the ends ofsaid arms,ineans for withdrawingthe clutched lead within the body into position to be sharpened, means for causing said arms and sharpening members to move inwardly when the ring is moved toward the end of the body and outwardly when moved away from the end of the body, and means whereby the clutched and locked lead may be turned and pressed into said sharpening members when brought together.

6. In a pencil, a body, a clutch adapted to clutch a lead extended beyond the end of said body, a pair of sharpening members within the lower end of said body, means,

for maintaining said members apart while the lead is extended, means-for withdrawing said clutched lead within said body into position to be sharpened,.means for moving said men'ibers into sharpening position when the lead is withdrawn within said body, the sharpening faces of said members forming a conical opening when said members are in sharpening position, means forturning and pressing said clutched lead downwardly Within said conical sharpening opening in said members, when said lead is withdrawn 'wlthinsald body and said members are in sharpening position to sharpen a point on the lead.

7 In a pencil of the character disclosed,

a n'iagazine to hold lead, a body open at the,

end in which said magazine is mounted to move longitudinally, means for rejecting the lead from said magazine and or clutching the lead when so projected, and means for holding the magazine when in position 7 with the clutched lead projected through the open end of said body.

8. In a pencil, a magazine for containing the lead, means for clutching the lead while projected beyond the magazine, means for locking the clutch while clutching the lead,

a body inclosing the magazine, means for adjusting the lead before clutching it and locking the clutch, and means for sharpening the same when in such clutched and locked position, said magazine being mounted in the magazine to move longitudinally therein and means for projecting said clutched lead beyond the pencil. body for use, and withdrawing the same within the body of the pencil without unclutching or readjusting the lead and means for locking the magazine with the lead projected and clutched beyond the end of thebody 9. In a magazine pencil, a-ma'gazme fort containing the lead, so that the point of' the lead may project beyond the end of Said magazine, means for clutching the-lead in 'such projected position, a body mounted on said magazine to move longitudinally thereon, said lead when so projected being adapt ed to rest within said body, an element atthe end of said body for engaging the end of said lead and detemnining the distance at which the point of said lead is projected be- In testimony whereof, I have hereunto set yond said magazine, the magazine and body my hand at San Francisco, California, this allowing movement of said magazine and 16th; day of June 1915.

body with relation to each other so as to 5 project the point of the clutched lead beyond 1 JOHN D. ZIMDARS.

the end of said body into position for use, and means for holding said magazine and In presence ofbody together in position to hold the point ALAN FRANKLIN, of the lead projected beyond the end of said P. S. PmWnLL 10 body in position for use.

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