US1077969A - Machine for grinding steel pens. - Google Patents

Description

G. H- BOUGHTON.

MACHINE FOR GRINDING STEEL PENS.

APPLIOATION FILED OUT. 8, 1912.

Patented Nov. 11, 1913.

5 SHEETS-SHEET 1.

WITNESSES ATTORNEYS G. H. BOUGHTON.

MACHINE FOR GRINDING STEEL PENS.

APPLICATION FILED OCT. 3, 1912.

x 6 SHEETS-SHEET 2. l\

ATTORNEYS llilllllrlllllL Patented Nov. 11, I913.

WITNE%S G. H. BOUGHTON.

MACHINE FOR GRINDING STEEL PENS.

I APPLIOATION FILED OUT. 3, 1912. j I 1,077,969. Patented Nov. 11,1913.

5 SHEETS-SHEET a,

ATTORNEYS APPLIOATION FILED OCT. 3, 1912.

Patented Nov 11, 1913.

5 SHEETS-SHEET 4.

G. H. BOUGHTON.

MACHINE FOR GRINDING STEEL PENS. APPLICATION FILED 001a 1912.

1,677,969. Patehted Nov 11, 1913.

5 SHEET S-SHEET 5.

WITNESSES v INVENTOR ATTORN EYS section of said wheel.

CHARLES H. EOUGHTO N, 0F CAMDEN, NEW JERSEY.

MACHINE FOR GRINDING STEEL PENS.

Specification of Letters Patent.

Patented Nov. 11, 1913.

Application .filed fictober 3, 1912. Serial No. 723,664.

To all whom it concern:

Be it known that I, CnAnLns H. BOUGH- 'ro1\', a citizen of the United States, residing in the city and county of Camden, State of New Jersey, have invented a new and useful Machine for Grinding Steel Pens, of which the following is a specification.

My invention consists of an improved machine for grinding pens, in which two consecutive grindings are given the pen in one operation of the machine.

It further consists of other novel features of construction, all as will he hereinafter fully .set forth.

The invention is satisfactorily illustrated in the accompanying drawing, but the important instrumentalities thereof may be varied, and so it is to be understood that the invention is not limited to the specific arrangement and organization shown and described.

Figure 1 represents a side elevation of my improved machine. Fig. 2 represents a top plan view of the machine. Fig. 3 represents an end View of the machine, viewed from the right-hand side of the view in Fig. 2. Fig. 4 represents an end view of the inachine, viewed from the left-hand side of the view in Fig. 2. Fig. 5 represents a side elevation from the side opposite to the view in Fig. 1. Fig. 6 represents a side-elevation of the feed wheel. Fig. 7 represents an axial Fig. 8 represents a perspective view of one of the pen-supports on the feed-wheel. Fig. 9 represents a sec tional detail view of a portion of the rim of the teed-wheel. Fig. 10 represents a detail view of the adjusting device which holds the grinding trains in operative position. Fig. 11 represents a pen with the marks of the consecutive grindings of the machine.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, the reference numeral 1 indicates a bed-frame which forms the main support for the machine and which may 'be-suitahly supported in any desired or convenient manner. A gear casing, 2, is supported upon said bed-plate and is intended to contain a lubricant, such as oil. A driving-shaft, 3, is journaled in transverse bearings, 1, in said gear casing,

and carries on its outer portion a loose pill-- within the-gear-casing in bearings, 12. Said shaft carries a worm, 13, which engages a worm-gear, let, secured upon a shaft, 15, transversely journaled in bearings, 16, in the gear-casing- Outside of the casing said shaft carries a continuous carrier comprising a feed-wheel, 17, having asolid circular portion, 18, and an annular flange, 19, the

periphery of which is polygonal ,--.hexagonal in the illustrated machine. At the angles of said flange and extending across the taco of the feed-wheel are formed transverse recesses, 20, in which restpen-supports, 21, formed with curved upper sides, 22, come spending to the shape of the pens to be ground. Said pen-supports are formed with flat sides, 23, and beveled sides, 24, and locking-plates, 25, have beveled edges, 26, which engage such beveled sides, and are secured in the transverse recesses by screws, 27, to lock said pen-supports in said recesses. A belt or endless hand, .28, passes around the circular portion of the feeding-wheel and around idler pulleys, .29, and 39, journaled "upon a side-frame 31, of the main frame. A tension-pulley, 32 is journaled upon a longitudinally .slottedhar, 33, adjustably secured by a bolt, 34, upon the side-frame, and

to adjust the projection of the same from the Wheel. The pen-supports are retained against endwise movement by st'opplates,

37, secured upon the side of the circular disk-portion of the wheel by means of screws, 38, and said stop-plates also form stops against which the ends of the pens bear. The free eiids of the pen-supports are re cessed or cut-away, as at 39, at lengths cor responding to the size of the pens to be ground and the extent of grinding required. An upright, 40, is supported upon the base of the machine and has a bracket, 41, at its upper end," overhanging thevtecd-wheel, and

said bracket is formed with guide-tubes, 42,

and a bar, 43, connecting the upper ends of said tubes. A yoke, 44, has rods, 45, movably guided in said tubes and has a grinding-wheel, 46, journaled with its shaft, 47, in the lower ends of its limbs. A threaded shank, 48, extends from said yoke and is freely movable in an opening in the bar connecting the guide-tubes, being provided with a wing-nut, 49, which limits the movement of the yoke and grinding-wheel toward the feeding-wheel. The shaft of the grindingwheel has a small pulley, 50, around which passes a belt, 51, which passes around horizontal guide-pulleys, 52, and vertical pulleys, 53, upon the upright, and around a pulley 54, upon the driving-shaft. A support, 55, is pivotally supported at its lower end between two cone points, 56, adjustably secured in clamps 57, upon the base-plate, and is drawn toward the feeding-wheel by a spring, 58, secured at one end to a bracket, 59. upon the machine-frame and having at its other end a bar, 60, formed with notches, 61-, engaging a stud, 62, upon the support, and by means of which the tension of the spring may be adjusted. The movement of the swinging support toward thefeedingwheel is limited by a stop, 63, upon the machine frame. The bracket to which the spring is secured has a longitudinal slot, 64, through which passes a screw-bolt, 65, into the machine-frame, and by means of which the spring may be adjusted.

The upper portion, 66, of the swing ng support is adjustable upon the lower portion toward and from the feeding-wheel, by means of a base, 67, having longitudinal slots, 68, through which pass screw-bolts, (39, into the lower portion. Said upper portion of the swinging support has two axially alined clamps, 70, in which cone-points, 71, are 'adjustably supported, which points support a shaft, 72, upon which is secured a inding-disk, 73, having radial spaces t drnied in it to produce radial grinding arms, 74:, of abrading material, the disk thus bein star-shaped. The shaft of the grinding isk carries a pulley, 75, around which passes a belt, 7 6, which passes around a beltpulley, 77, upon the driving-shaft. The upper portion of the swinging support has a guard-finger, 7 8, projecting toward the feeding-wheel-and secured to a longitudinally slotted bar, 79, adjustable upon a screw-bolt, 80, entering such upper portion. The guardfinger registers with and engages the pen supports and follows the curvature of the same so as to guide the swinging movement of the grinding-disk and support. Said guard finger will also prevent the grinding disk from being drawn too' far toward the feeding-wheel in the case a pen isnot upon the support, when the disk registering with the cut-away or recessed portion ofthe support will not come in contact with the same.

ing whee A bar, 81, having a segmentally slotted head, 82, is pivoted upon the fiat upper side of the swinging support, and has a prismatic guide, 83, upon its upper side. A screw-bolt, 84, passes through the slot in the head of said bar and serves to secure the bar at whatever angle it is desired to adjust the same in its relation to the peripheral face of the grinding-disk. A block, 85, has a notch, 86, of a shape corresponding to that of the prismatic guide, so that it may slide upon the same,

and said block has an opening in which a tool-holder, 87, is secured by a set-screw, 88, and the end of said tool-holder has a diamond, 89, or other abrading tool secured in its end. A yielding stripper, 90, preferably in the form of a fiat bar of spring-metal, is secured below the feeding-wheel to contact with the same and to engage and detach any pen which might not drop by its gravity from the feeding-wheel. A hopper, 91, or similar receiver is arranged beneath the feeding-wheel to receive the pens discharged from the same.

In practice, the operator places the pens to be ground upon the supports on the feeding-wheel,the shape of such supports correspondin to that of the pens. As the feed- F rotates, the band engages the shanks of the pens and retains the same upon the supports. The upper grinding-wheel is I held by gravity toward the periphery of the fe ding-wheel, being adjusted by the wingnut upon the shank of the yoke to approach the supports by the extent of the average thickness of the metal of the pens. This grinding-wheel, rotating in a plane transverse to that of the feeding-wheel and parallel to the length of the pens upon their supports, will longitudinally grind the pens at the point near the bases of the nibs, as indicated at 92 upon the pen, 93, illustrated in Fig. 10, as the pens are successively presented beneath the grinding-wheel. As the feeding wheel rotates further, the pens are presented to the star-shaped grinding-disk and receive the transverse grinding 94, across the nibs, which controls the flexibility of the nibs. The disk will be moved, together with its swinging support, by the guard-finger upon the latter following the rounded contour of the pens, so as to make the cut follow the rounded surfaces of the pens. In the case the operator should miss placing a pen on a support, the guard-finger will prevent drawn too far over by the spring to cause,

the/disk to act upon the support. The spaces between the radiating grinding arms of the disk provide ventilation to keep the grinding surfaces cool. The rotary speed of the disk is so high that the latter is liable to become highly heated and would thus draw the temper of the pens, but the ventilation of the star-shaped disk will keep down its temper.-

' in'g-wheel.

ature and prevent the drawing of the temper of thepens As the feeding-wheel continues its rotation, the band-will leave the circular portion of the wheel and release the pens, and should a pen, for some cause or oth er,adhere to its support, the stripper will dislodge it. The pens drop into the hopper and may be collected and further treated and disposed of. i

The pen-supports may be adjusted by means of the screws bearing against their inner sides so that all supports will project equal distances from the center of the feed- The upper or longitudinally rindingwheel is adjusted toa predetermined distance froln the pen-supports and may rise and fall according to the curvature of the individual pens, grinding, however, in all instances to the predetermined depth.

The star-shaped transverse grinding-disk is adjusted to be drawn closer or less close to the feeding-wheel by adjusting the upper portion of the swinging support by the screw-bolts in the slots of such upper portion, and the tension of the spring drawing said support and grindin disk is adjusted by means of the notched ar on the end of the spring engaging the stud upon the frame.

The prismatic guide upon the, upper face of the swinging support can be adjusted at varying angles to the plane of the grindingdisk, by means of the screw-bolt in the segmentally slotted head of the bar supporting the uide, so that the diamond or other abra ing tool secured in the tool-holder which is adjustably secured in the notched block, may be moved across the peripheral face of the grinding disk at the desired angle to out such face towhatever angle is desired. As the abrading tool is only required for dressing the grinding-disk when the face of the latter comes out of true, one such tool may be used with a number of machines, it being only necessary to adjust the guide at the proper angle and to place the blocks with its notch straddling the guide.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a machine for rinding pens, a continiious carrier provi ed with means for supporting the pens to be ground, means for actuating such carrier, a grinding device having means for actuating it transversely to said carrier and supported to engage the pens on the same, and a grinding device having means for actuating it in a plane parallel to said carrier and for drawing it toward the same.

2. In a machine for grinding pens, a feeding-wheel formed with a circular portion and a polygonal portion, pen supports secured in the periphery of said wheel and at the angles of the polygonal portion of the same, an endless band fitting upon the circular portion of the wheel, means for driving such band, and a grinding device having means for actuating it and supported to engage the pens upon said supports.

3. Ina machine for grinding pens, a feeding-wheel formed with a circular portion and a polygonal portion, pen-supports secured in the periphery of said wheel and at the angles of the polygonal portion of the same and formed with cutaway ends, an endless band fitting upon the circular portion of the wheel, means for driving such band, and a grinding device having means for actuating it and supported to engage the pens upon the supports and at-points registering with the cut-away portions of the same. i

4:. lin a machine for-grinding pens, a feeding-wheel having a circular portion and a polygonal. portion and formed with transverse recesses in its periphery at the angles of the polygonal portion, pen-supports adapted to it in said recesses and each formed with a beveled side, clamping-plates adapted to fit in said recesses and each formed with a beveled edge to fit against said beveled sides, and screws through said plates to secure them in said recesses.

. 5. In a machine for grinding pens, a feeding-wheel provided with rounded pen-supports upon its periphery, a swinging support, a grinding-disk journaled in said support, yielding means for drawing said sup port and disk t'ward said feeding-wheel, and a guard-finger upon. said support and adapted to bear against the periphery of said feeding-wheel.

6. In a machine for grinding pens, a continuo-us carrier provided with transverse pen-supports and having means for actuating it, a frame bracket, guide-tubes on said bracket, a yoke provided witlr a threaded shank and with rods guided in said guidetubes, a grinding-wheel journaled in said yoke transverse to said carrier, means for rotating such wheel, and a wing-nut upon the shank of said yoke to adjustthe same and the grinding wheel toward and from said carrier.

7. In a machine for grinding pens, a continuous carrier having transverse pen-supports, means for actuating such carrier, a swinging support pivoted to be moved toward and from said carrier, yielding means for drawing such support toward the carrier, a stop for said support to limit its movement toward the carrier, a grinding disk journaled in said support in a plane parallel with said carrier, and means for rotating such disk.

8. In a machine for grinding pens, a continuous carrier having transverse pen-supports, means for actuating such carrier, a swinging support pivoted to be moved toward and from said carrier, yielding swinging support and bearing against the means for drawfing smgi support tonlrard the (Barrier. carrier, a, stop or sai su ort to imit its i movement toward the cai r ier, a grinding CHARLES BOUGHTON' 5 disk journaied in said support in a. plane Witnesses:

arallel with said carrier, means for rotat- EDWARD K. MAGEWAN, mg such disk, and a guard-finger uponsaid FRANK B. MnmLm-oN, Jr.

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