US2223681A - Machine for making cylindrical brushes - Google Patents

Description

Dec. 3, 1940. Q E, FlSHER 2,223,681

MACHINE FOR MAKING CYLINDRICAL BRUSHES Filed March 6, 1939 6 Sheets-Sheet l Dec. 3, 1940. Q FISHER 2,223,681

MACHINE FOR MAKING CYLINDRICAL BRUSHES Filed March 6, 1939 6 Sheets-Sheet 2 Dec. 3, 1940. c. E. FISHER 2.223581 MACHINE FOR MAKING CYLINDRICAL BRUSHES Filed March 6, 1959 6 Sheets-Sheet 3 Dec. 3, 1940. FlsHER 2,223,681

MACHINE FOR MAKING CYLINDRICAL BRUSHE Filed March 6; 1939 6 Sheets-Sheet 4 I I l I I I 1 1 I I Dec 3, 1940. Q FlsHER 2223,61

.'MACHINE FOR MAKING CYLINDRICAL BRUSHES Filed March 6, 1939 6 Sheets-Sheet 5 Dec. 3, 1940., GE. FISHER 2 MACHINE FOR MAKING CYLINDRICAL BRUSHES FiIed March 6, 1939 6 Sheets-Sheet 6 I Patented Dec. 3, 1940 UNITED STATES PATENT. OFFICE MACHINE FOR MAKING CYLINDRICAL BRUSHES Charles E. Fisher, deceased, late of Baltimore, Md., by Charles Fisher, executor, Ellicott City, Md., and Mollie Fisher, executrix Application March 6, 1939, Serial No. 260,208

staples and driving the staples and tufts into holes previously bored in another brush back. During these operations the'brush backs are held parallel with one another, one beneath the boring tool and, the other beneath the staple-driving rod, and the backs are adjusted automatically step by step with respect to the boring and staple-driving devices and the latter descend simultaneously to operate on the brush backs. In the present invention the operation, in so far as boring and tufting is concerned, is the same, but the cylindrical brush cores are supported on a horizontally movable carriage and the cores are given a rotary step by step movement while one core is being bored with a circular series of holes and a similar series of tufts are applied to the other core, when the carriage is stepped forward so that a succeeding series of holes may be drilled and tufts applied and these operations continue. until the brush is finished. I Provision is made also for controlling the rotary movements so that the tufts in successive rows may be spirally arranged or staggered as desired.

Fig. '1 is a top planview of the lower part of themachine, showing the gearing for adjusting the cylindrical brush bodies or cores axially and longitudinally, the boring and'tufting mechanism being omitted; I

Fig. 2 is a transverse section through the machine taken about'on the line 2-2 of Fig. 1;

Fig. 3 is a vertical section taken about on the line 33 of Fig. 2, looking from left to right;

Fig. 4 is a plan view of one end of a brush core partly bored;

Fig. 5 is a diagrammatic view illustrating the relation of the boring and staple-driving devices to the cores being operated upon;

Fig. 6 is a section approximately on the line 66 of Fig. 2, showing on an enlarged scale, partly broken away, the mechanism at'the left in Fig. 2, and at the upper side of Fig. 1, for causing axial rotation of the brush cores;

Fig. 7 is a top plan view of the same, parts being shown in horizontal section;

Fig. 8 is a section approximately on the line of fibre or bristle from a magazine, forming 88 of Fig. 1, showing on enlarged scale the mechanism for causing longitudinal movement of the carriage and brush cores;

Fig. 9 is a detail view of the check-operating device shown in Figs. 2 and 8;

Fig. 10 is a side view of the cam-operated means for controlling the engagement and disengagement of the pawl which actuatesthe ratchet wheel shown in Fig. 8, and also hand-operated means for holding the pawl and check indisengaged positions;

Fig. 11 is a perspective view of the same, and, Fig. 12 is a similar View showing the handcontrolled means for holding the check in inopl erative position. 5 3

Referring to Figs. 1-3, inclusive of the drawings A represents a relatively long and narrow frame composed of parallel flat bars a anda each having an upturned side flange I, these bars being connected together by end pieces 2 and 3. This frame is suitably secured in horizontal Position upon the bed plate 4 of an automatic brushmaking machine, having boring and stapling mechanism like that shown in patent to Charles E. Fisher No. 1,512,588, dated October 21, 1924. The bed plate is mounted upon supporting legs 5 and 6, and upon the bed plate is mounted an arched support B which carries the driving motor and the main shaft for operating the boring and tufting mechanism, this support consisting of uprights b, b and the cross piece b As the boring, tuft-gathering and staple-driving mechanisms are substantially the same asin the aforesaid patent to Charles Fisher and form no part of the present invention, these features need not be described in detail. In the machine of said patent, two flat brush backs are arranged upon a movable table, parallel with one another, and While one back is being bored with holes to receive tufts, tufts of bristle or fibre are taken 40 from a magazine and stapled in the holes of'a previously bored brush back.

In the present invention, the operation of boring and tufting is the same, but the bodies which are'bored and tufted are long and cylindrical, 5 and the invention relates particularly to the mechanism for moving these cylindrical bodies axially and longitudinally so that one body will be bored while a previously bored body is being tufted, the finished brush having the tufts spir- I ally arranged, or in straight or staggered rows, as desired. I

As shown in Fig. 2, an electric motor M on a suitable support m drives a main shaft L through gears o and p and a. clutch, not shown; A cam driving rod n, to staple a tuft in a previously, The rod drives. the

boredhole in another core. staples and tufts through an open pocket yinto the holes in the core, as in the Fisher patent referred to.

The flanges l of the stationaryfranie'A serve as rails for a movable carriage C consisting'of long side bars and 0' connected together at their forward ends by a cross bar 0 and toward their rear ends by a cross bar 0 and byan-adjustable cross bar c The side bars of the carriage have grooved rollers l which travel "on-the flanges l of the frame A. As shown, thefcross bar 0 has transverse slots 8 in its ends through which bolts 8 extend and eachof the side bars has a series of spaced bolt holes 9 to receive the bolts and by these means the cross bar 0 may be secured in any desired position of adjustment along the side rails.

Aspindle l0 journalled in bearings on, thefcross bar c has a tapered end ll] adapted to enter an axial hole in the end of a cylindrical wooden core which is to be bored radially to receive the brush tufts, the core being indicated at 'e, in

dotted lines in Figs. 1 and 3 and in full lines in Fig. 5. A dog, not shown,- clamped about the end portion of the'core, and having an arm which enters a slot lll in the face plate I 3, mounted onthe. spindle, causes the core to rotate with the spindle. A spindle H is rotatably mounted in a bearing on the cross bar 0 in line with the spindle Ill on the cross bar 0 and the end of this spindle-is adaptedto engage a central hole in the o posite end of the wooden core. This spindle is spring pressed toward the core. Similarly a spindle I2 is journalled in bearings on the cross;

bar 0 and this spindle, having a pointed end .12

cylindrical brush core which has previously been and a slotted face plate l2 is in alinement with a spring-pressed spindle l3 on the cross bares. The spindles I2 and I3 are adaptedto support a bored with radial holes while the tufts are being stapled inthe bored holes, this brush core being indicated in dotted lines at 'f in Fig. 1 and in full lines in Fig. 5.

, The cross bar 0 is adjustable toward fro'm.

the cross bar 0 to suit brush cores of. any desired length, and the frame or carriage is started. This is approximately the position of manually adjustable longitudinally on .the,.sta-

tionary. frame A to. position the end portions of the brush cores which are adjacent the face plates I0 and I2 beneath the boring and tufting devices, respectively, before the machine, is

the carriage in Fig. 3, where the end portion pf the core e adjacent the face plate I!) is beneath the vertically movable drill t. ,This hand gadjustmentof the carriage'is effected by turning a feed screw IA by means of a hand crank I4 thereon, first throwing certain pawls out of engagement with the gearing which automatically moves the carriage, as hereinafter explained.

The, feedscrew 14 is journalled in a bearing 15 at theforward end of the Stationary frame Aand a, bearing [ii on the bed;p1ate4, and it extends slidable longitudinally through the pinion.

through a threaded sleeve l1 secured to the under side of the cross bar 0 as shown in Figs. 2 and 3.

A gear casing 12 is secured to the forward end of the cross bar 0 and within this, gears are arranged for turning the spindles I0 and 12, with the wooden cores, simultaneously in the same direction-and to'the same extent, these movements beingac'complished automatically, step by step, until a circular row of holes, evenly spaced apart,

have been bored in the core e and a circular row of tufts have been stapled in the previouslyv bored score I, and the carriage C is then stepped forward automatically to bring the core e into position to-be bored with another circular series of holes and the core 1 into position to receive a corresponding series of tufts, these forward movements of the carriage being accomplished by automatic means, hereinafter described, acting through a-gear I8 on the feed screw l4.

.:Rotary movements of the brush cores Thej aut omatic means for giving the spindles Ill and] l2,'and the cylindrical brush cores, a rotary stepbystep movement will first be described.

Inthe gear' casing h are gears l9 and 20, of the same diameter, secured to the spindles l0 and I2, respectively, and an intermediate gear 2| meshing with the gears l9'and to cause rotation of the latter gears in the same direction, and these gears. are operated by a drive gear, 22 meshing with the gear] I9. A shaft 23 mounted in bearings 24 and 25 on the side bar 0 of the carriage C extends parallel with saidside' bar and is connected by a flexible coupling member 23" to a short shaft 23?, which is journalled in bearings 28 on the" cross bar 0 and on this shaft is' secured the drive gear 22. This shaft is rotatable step by stepby a train of gearing-tube described and through the gears in the gear casing h, the spindles l0 and I2 are rotated in unison step by step to cause corresponding rotary move ments of the 'brushico-res. A

The means for giving a rotary movement to th shaft n me the spindles l0 and I2 which rotate the brush cores is illustrated in Figs. 1, '2, 6 and 7. A 'rod 21 connects an eccentrically mounted pin 28 onthegear p with'a' pin on a rocker arm 29 which is keyedto shaft30 supporte'dJin suitable bearings 3| and 32. This rod makes a downward and upward movement dur..-'

mg each revolution of the main shaft. A pawl 33, pivoted tothe rocker arm, is spring-pressed into engagement with a ratchet wheel 34' by a spring'.35. The ratchet'wheel 34', as shown in Fig; 7 is secured to a disc 36 on a sleeve ,31: which is keyed to the shaft 30 and a bevel pinion 38,

mounted on the' sleeve, engagesa bevel pinion 39 keyed to the shaft 30. The shaft 23 has a key-- way'23 extending throughout its length and the pinion'39is keyed to the shaft but the-latter is this it will be seen that every time the pawl 33 moves the ratchet wheel 34, the shaft, 23 will turn and the spindles l0 and I2 will be moved and with them the brushcores will be moved circumferentially a given distance. To prevent over-running a friction brakejfl? is applied to the end of the shaft 30. Following each movement and while the pawl 33qis descending, the drill t and staple -driving rod Fig. 5, will simultaneously make ,a downward and upward move-- ment and theformerwill bore a ho-le in the core e and the latter will staple a tuftin a previously bored hole in core I,"

From

After thecoree has been bored with the first complete circular row of holes, evenly spaced apart, as the row 70,.Fig. fl, and. a. corresponding row of tufts has beenistapled into previously bored holes in the core f, it is necessary to shift the carriage C forward in orderthat a succeeding row of spaced holes k may be bored in the core e and a corresponding row of tufts may be stapled into previously bored holes in the core f. This forward shifting .of the frame which carries the coresv is accomplished automatically while the pawl ,33 is descending by means to be hereinafter described. It is desirable tov stagger the holes in successive rows and correspondingly stagger the tufts.- Assuming that it is desired to have the holesandtufts in each row located midway between the holes and the tuftsin adjacent rows, this is accomplished as .followszlf the hole IOI, Fig. 4, be considered ,the first hole and I 14 the last hole bored in row, It, having l4 holes, and the movements of the core are in the direction of the arrow, then during the next upward movement of the pawl 33 a slide 42, having a curvedend 42 will be moved to disengage the pawl from the .teeth on the ratchet Wheel 34 for half of the upward travel of the pawl and the latter will move the ratchet wheel only half as far as it does when the pawl is engaged throughout the length of its upward travel, and hence the first hole I I5 in the second row k will be spaced. midway, circumferentially, between the last and first holes bored in the row 70 and, similarly, holes I29 and I42 will be the first and last holes bored in the row W. In other words, after one complete circular row of holes has been bored in one core and one complete circular row of tufts has beenstap-led into the previously bored holes o-f another core, the cores will be moved circumferentially only half a space to start the next rows of holes and tufts. All of the tufts and holes in the successive rows will be staggered with respect to the holes and tuft s in the adjacent rows, but the holes and tufts in'each row will be spaced thesame distance apart circumferentially of'the cores. It is to be noted that "this half spacing at the commencement of each row gives a spiral effect to the holes and tufts. Thus, the holes lfll, I l5and I29, and the'h'oles H4, I28 and l42.aresp irally arranged.

The meansfor'holding the pawl 33 out of engagement with the ratchet wheel 34 to accomplis'h, reduced spacing of the cores circumferentially after the completion of each row of holes and tufts and before the commencement of the next row of holes andtufts, will now be described. previously stated, the arm 29, Figs. 1, 2, 6 and 7, which is rocked by the rod 21, is keyed to the rock shaft .30 and upon this shaft is secured a radially extending slotted arm 44 which rocks with theshaft. A link 45 connects this arm with an arm 46 journalled on a shaft 41 which extends transversely of the machine and is mounted in bearings 48, 49cm the frame of the machine. The arm 46 carries a pawl 50 which engages the teeth of a ratchet wheel 5| keyed to the shaft 41, and

secured to this shaft is a cam wheel52, circular in form, and having short cam surfaces 53 on its periphery, spaced equal distances apart. A centrally pivoted lever 54 has a roller 55 at one end which bears against the periphery of the cam wheel, while its opposite end has a slot 55 which is engagedby a pin 56 on the slide 42 for moving the pawl 33 out of engagement with the teeth of the ratchet wheel 34. The link 45 has one end adjustable in the slot of the rocker arm 44 to adjust the extent of movement of the pivotally mounted arm 46 and the pawl 50.

In operation, asthe rod 21 moves the rocker arm 23 and pawl 33 up and down, during each revolution of the main shaft L, it also causes the slotted arm 44 to rock back and forth and, through the link 45 and the pivoted arm 46, the pawl 50 is moved back and forth to advance the ratchet wheel 5| a certain number of teeth at each forward movement, and this will cause a corresponding movement of the cam wheel 52. When one of the short cam surfaces 53 on the cam wheel 52 engages the roller on the lever 54, the latter is moved and shifts the slide 42 horizontally outward and this slide disengages the pawl 33 from the teeth of the ratchet wheel 34. The pawl 33 then rides on the curved end of the slide until the roller on the lever 54 passes off of the cam surface on the cam wheel, when the slide is withdrawn by the lever and the spring 35 moves the pawl into engagement with said ratchet wheel,

wardly for the first half of the next upward movement of the pawl 33 so that the pawl'will give the ratchet wheel only a half of its normal movement, and consequently the brush cores will be given only half of their normal circumferential movements after the last hole in a circular row has been bored in one row and the last tuft in a circular row has been set in another core.

The half spacing at the change from one row to another produces a spiral arrangement of the tufts in the complete brush. If it is desired to have the tufts in straight'rows from end to end of the brush, this can be done by replacing the cam wheel 52 with a disc of the same" diameter without the cam projections 53, so that the slide 42 will not be operated to disengage the pawl 33 from the ratchet wheel 34. The pawl will then move the ratchet wheel, and hence the brush cores, the same distance at all times and the holes and tufts in the successive rows will be in longitudinal alinement. Or, if it is desired merely to stagger the tufts in successive rows without having them spirally arranged by half spacing the first hole or tuft in a row, this can be done by changing the length of the cam surfaces 53 so as Longitudinal movement of carriage and brush cores The shaft 41 which carries the cam wheel 52 for controlling the circumferential spacing movement of the brush cores also carries, at the opposite side of the machine, a cam wheel 51 which controls the longitudinal movement of the carriage and the brush cores after each row of holes has been bored and each row of tufts has been stapled. A shaft 58, journalled in suitable bearings 53 beneath and parallel with the feed screw (Figs. 2 and 3) carries a gear 59 which meshes with a gear 60 journalled on a stub shaft 64, and this latter gearmeshes with the pinion l8 on the feed screw. l-lence any rotary movement given to the shaft 58 willcause rotary movement 30f the feed screw. A ratchet wheel 62 is secured to the shaft 58, and a ratchet lever 63, journalled on said shaft; carries .a pawl 64 for moving the i 5 ratchet wheel and the train of gears which operate the feed screw. The ratchet lever 63 moves constantly back and forth while the main shaft is in operation, but the pawl 64 is held o-ut'of engagement with the wheel except at the .times when it becomes necessary to shift the carriage carrying the brush cores forward with respect to the drill and tufting devices to start a new row of holes in one core and a new row of tufts in the other core. ratchet lever'63 is connected by a rod 65 to one endof. a lever 66 which is centrally pivoted to a stationary support 61, and the opposite end of the lever isadjustably connected by a threaded rod 63 to an eccentric strap 69 which is movable up and down by an eccentric .16 on the main shaft row in the other core has been stapled. Then the pawl 64 will be permitted to engage the ratchet wheel and cause rotation of the feed screwand longitudinal movement of the carriage and cores to the exact distance predetermined for the spacing of the circular rows of holes and tufts, and after this short movement the pawl 64 will be disengaged from ratchet wheel 62 until the cores have made a complete step by step rotation and one core has been bored with a new row of holes and the other core has been stapled with a new row of tufts, at the completion of which the carriage and cores will be moved longitudinally as before to position the cores with respect to the boring and stapling devicesfor the succeeding holes and tufts. These longitudinal movements occur without stopping the movements of the boring and stapling devices, but in the short intervals while they are. disengaged from the cores 5 after the last hole in a circumferential row has been bored in one core and the last tuft has been stapled in a row in theother core. At the next descent of the boring and stapling devices, they commence to operate on new rows of bores and tufts, respectively.

The plate H for holding the pawl 64 normally out of engagement with the ratchet wheel 62 is secured to a slide 12 which is movable radially with respect to the ratchet wheel. As shown, one end of the slide has a slot [2 through which the shaft 56 extends and the other end of the slide is supported by a fiat metal strip 13 depending from the frame of the machine, this strip having a slot at its lower end through which the slide is movable. A shaft l4'is ver-v tically arranged in bearings 15 in affixture 16 which depends from the machine frame, and this shaft carries a laterally projecting roller 11 which bears against the periphery of the cam wheel 51. A slotted lever 18 secured to the lower endofthe-shaft engages a pin 19 on an arm 8|] secured to the side of the slide 12, so that when the roller is on the high portions of the cam wheel, the slide and curved plate II will be held in theposition shown inFig. '11, wherein the 7 plate'holds the pawl 64 out of engagement with As showni'n Figs. 2, 3 and 8, the

thelrat'chet wheel; I A spring. 81 :connects a 1-pin 821011: the arm.: 18 .with a fixediapart 83' on'i'a' bracket; 84 and this. springconstantly urges the slideJ'lZ. and plate. H towardrthe axis of the ratchet wheel62 and holds the roller 111011 shaft- 14 against the edge :of the cam wheel. When the rollerdrops into one of the depressions 5V in the cam wheel,the arm 'l8.m0ves the-slidelzand plate llradially inward to permit. the

pawl 64 to engage :theratchet wheel, this move-' ment beingreversed the moment the roller 11" ridesout of the depression in the cam wheel.

1T0 preventover-running'of the mechanism operated by the-ratchet wheel 51 and to ensure exact longitudinal spacing of the carriage and brush cores, a ratchet 85, secured to the'shaft 59, has teeth reversely arranged with respect to the teeth onthe ratchet wheel 62,"as shown'in' Fig. 8, and a check pawl 86, slidable'in suitable guides 81, is pressed by a spring 88 towards the teeth of the ratchet wheel 85, as shown in Figs. 8 and 9. A flat metal rod 89 is vertically movable in guides 90'above' and below the check pawl and this rod has'a long notch 89 in one edgewhichis engaged by a roller 9| on the check pawl 86 when the rod is in the position shown the ratchet lever 63 to move'upwardly, and dur ing this upward movement, the-rod 89 forces the roller 9| and check pawl "86 rearwardly out of;

. in Figs. 8, Band 12. The sliding rod 89 is mov--.' able upwardly by a rod 92 attached to the pivoted arm 86, ever time'the latter arm causes descends and permits the check pawl 86 to'en:

gage the ratchet wheel 85 to prevent any further movement of the shaft 58 and the mechanism which it operates to shift the carriage. For the purpose of adjusting the carriage when the machine is stopped, by turning the feed screw? 14 byhandpit is necessary to disengage thecheck 86 from theteeth of the ratchet wheel 85 and also to disengage the pawl from theratchet 45 wheel 62;; shown-in Fig. 1, a shaft 93 is jour; nalled onj'the side of the frame A and .hasia handle 93 'by which the shaft can be turned, this handle being placed within. reach of the operator when he turnsthe crank M to move the carriage. The shaft 93 operates a link 93.

which in turn operates a, shaft 93 to give the latter a'rotary movement. One end of the shaft 93 is journalled in a support-[94, Fig. 8, and'upon this end is a crank 95 which has a' lost-motion connection with a rod 96 connected to the pawl" 64 whereby rotation of the crank will move the pawl out of engagement with the ratchet-wheel 62. lost-motion connection with a rod 98 whi ch is pivotally connected to. the check -86. It will be evident that by turning the handle on the shaft 93, the operator may move the check/86 and pawl 64 out of engagement with the ratchet wheels andhold them out of engagement while he adjusts the carriage by turning the crank I 4*.

Another crank 9! on the shaft 93has a After themachine has been operated to com--" plete the boring of one core and the tufting of the other core, itis necessary to stop the mechanism, and for this' purpose a stop 99, Fig. 1, adjustably mounted on the shaft 23 which is movable with the carriage. As the carriage moves forward, from left toright in Fig. 1; this stop engages a lever99iwhich trips a clutch on. the main shaft and disengages the latter from 1 for rotating said cores simultaneously step by step in time with the movements of the boring and stapling devices to permit said devices to borea circular series .of holes spacedevenly apart in one core and to simultaneously staple a similarly spaced series of tufts in the 'holes of a previously bored core, while the carriage is stationary, and means for moving the carriage and cores endwise after each circular series of holes has been bored in one core and a circular series of tufts has been stapled into the other core.

2. In a brush making machine having vertically reciprocating means for simultaneously boring holes in one brush core and stapling tufts into a previously bored core, a carriage having means for supporting 'two cylindrical cores side by side in horizontal position beneath the boring and stapling mechanisms, respectively, means for rotating said cores simultaneously step by step in time with the movements of the boring and stapling devices to permit said devices to bore a circular series of holes spaced evenly apart in one core and to simultaneously staple a similarly spaced series of tufts in the holes of a previously bored core, while the carriage is stationary, means for moving the carriage and cores endwise after each circular series of holes has been bored in one core and a circular series of tufts has been stapled into the other core, and means for shortening the circumferential spacing movements of the cores during the step following the completion of one circular series of holes and tufts and before the commencement of the next circular series of holes and tufts, to stagger the holes and tufts in successive rows.

3. In a brush making machine having vertically reciprocating means for simultaneously boring holes in one brush core and stapling tufts into a previously bored core, a carriage having means for supporting two cylindrical cores side by side in horizontal position beneath the boring and stapling mechanisms. respectively, means for rotating said cores simultaneously step by step 1 in time with the movements of the boring and stapling devices to permit said devices to bore circular series of holes spaced evenly apart in one core and to simultaneously staple a similarly spaced series of tufts in the holes of a previously bored core, while the carriage is stationary, means for moving the carriage and cores endwise after each circular series of holes has been bored in one core and a circular series of tufts 7 has been stapled into the other core, and'means in one brushcore and stapling tufts intoa previously bored core," a carriage having spindles mounted thereon for supporting two cylindrical brush cores side by side in horizontal position beneath the boring and stapling devices, respectively, means for rotating said cores simultaneously step by step in time with the boring and stapling devices to permit a circular series of spaced holes to be bored in one core and a similar series of tufts to be applied to the other core, comprising gears mounted on the carriage for rotating said spindles in unison in the same direction, a shaft mounted: on the carriage and extending'longitudinally thereof for driving said gears, a pinion keyed to said lattershaftand through which said shaft is slidable, a ratchet wheel geared to said pinion, a ratchet lever having'a pawl normally engaging the ratchet Wheel, and means operated byfthe main shaft for rocking said lever and. pawl to move the ratchet wheel a given distance during each rotation of the main shaft to effect rotary step by step movement of the brush cores.

5. In a brush making machine having a main shaft and vertically reciprocating means operated by said shaft for simultaneously boring holes in one brush core and stapling tufts into a previously bored core, a carriage having spindles mounted thereon for supporting two cylindrical brush cores side by side in horizontal position beneath the boring and stapling devices, respectively, means for rotating said cores simultaneously step by step in time with the boring and stapling devices to permit a circular series of spaced holes to be bored in one core and a similar series of tufts to be applied to the other core, comprising gears mounted on the carriage for rotating said spindles in unison in the same direction, a shaft mounted on the carriage and extending longitudinally thereof for driving said gears, a pinion keyed to said latter shaft and through which said shaft is slidable, a ratchet wheel geared to said pinion, a ratchet lever having a pawl normally engaging the ratchet wheel, means operated by the main shaft for rocking said lever and pawl to move the ratchet wheel a given distance during each rotation of the main shaft to effect rotary step by step movement of the brush cores, and means for automatically holding the pawl out of engagement with the ratchet wheel during a only of the forward movement of the pawl after a circular series of holes has been bored and a similar series of tufts has been applied to the cores, respectively, and before the boring and tufting devices next operate on the cores.

6. In a brush making machine having vertically reciprocating means for simultaneously boring holes in one brush core and stapling tufts into a previously bored core, a carriage having means for supporting two cylindrical cores side by side in horizontal position beneath the boring and stapling mechanisms, respectively, means for rotating said cores simultaneously step by step in time with the movements of the boring and stapling devices to permit said devices to bore a circular series of holes spaced evenly apart in one core and to simultaneously staple a similarly spaced series of tufts in the holes of a previously bored core, means for moving the carriage and cores endwise after each circular series of holes has been bored in one core and a circular series of tufts has been stapled into the other core comprising a feed-screw journalled in stationary bearings and engaging a threaded member on the carriage, a ratchet wheel, gearing operable by the'ratchet wheel for rotating the feed screw, a ratchet lever and. pawl, means operable by the main shaft for moving said lever and pawl, means for normally holding the pawl out of operative engagement with the ratchet wheel and means for permitting the pawl to engage the ratchet wheel to cause longitudinal movement ofthe carriage and cores after each circular series of bores and tufts hasbeen completed.

7. In a brush making machine having vertically reciprocating means for simultaneously boring holes in one brush core and stapling tufts into a previously bored core, a carriage having means for supporting two cylindrical cores side by side in horizontal position beneath the boring and stapling mechanisms, respectively, means for rotating said cores simultaneously step by step in time with the movements of the boring and stapling devices to permit said devices to bore a circular series of holes spaced evenly apart in one core and to simultaneously staple a similarly spaced seriesof tufts in the holes of a previously bored core, means for moving the carriage and cores endwise after each circular series of holes has been bored in one core and a circularseries' of tufts has been'stapled into the other core comprising a feed-screw journalled in stationary bearings and engaging a threaded member on the carriage, a ratchet wheel, gearing operable by the ratchet wheel for rotating the feed screw; a ratchet lever and pawl, means {operable by the main shaft for moving said lever and pawl, means for normally holding the pawl outof operative engagement with the ratchet Wheel and means i for permitting the pawl to engage the ratchet wheel to cause longitudinal movement of the carriage and cores after each circular series of bores and tufts has been completed, said lastmentioned means including a cam wheel operated. by the means for rotatingthe cores. 1 I

CHARLES C. FISHER;

Executor of the Estate of Charles E. Fisher,

Deceased. g

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