US1564198A - Bxank -treating- machine - Google Patents

Description

l. C. BUCKMINSTER BLANK TREATING MACHINE Dec. 8 1925.

5 She ts-Sheet 1 Dec. 8, 1925. A 1,564,198

I. c. aucmms'rsn BLANK TREATING MACHINE Filed March 8, 1920 5 Sheets-Shut 2 Dec- 192's- I. C. BUCKMINSTER BLANK TREATING MACHINE Filed March 8, 1920 5 Sheets-Sheet 5 Dec. 8

l. c. BUCKMlN STER BLANK TREATING MACHINE Filed March a, 1920 s Sheets-Sheet 4 Dec. 3 1925.

l. C. BUCKMINSTER BLANK TR ATING MACHINE Fild March a, 1920 5 sheets-sneet' 5 Patented Dec. 8, 1925.

' UNITE!) STA TEE.

IRA C.. BUCKMINSTER, OF BEVERLY, MASSACHHSETCFIS,

ASSIGNORZ TO "UNITED SHOE MACHINERY CQRPQRA'BION, OF PAEEBQON, NEW JERSEY, A CQBIPORAITION OIE NEW JERSEY.

Application filed March 8, 1920;

To all whom may concern:

Be it known that I, IRA O. BUCKMINSTER, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Blank-Treating Machines, of which the following description, in; connection with the accompanying drawings, is a specification, like referencecharacters on the drawings indicatinglike parts in. the several figures.

This invention relates to. blank treating machines and the machine herein shown and described for the purpose of illustrating one embodiment of the invention is especially designed" tor operating upon the top lifts of boots and: shoes, although it will be apparent that many of the novel features of the invention are not limited to such use.

An important object of the invention is to produce a machine to skive off the surfaces of top lifts so that the lifts will be accurately evened; in other words, it. is desired that each lift shall: be of uniform thickness throughout its: entire area. Hitherto heel lifts have been: evened on an ordinary splitting machine, but the diffilculty has arisen that the forward edge of a lift as it reaches the knife and the rear edge of the'endz of the lift as it leaves the rolls have been beveled ofi" somewhat so that the lifts have not been. satisfactorily evened.

A further object is to provide a machine that will perform several operations auto matically and thus eliminate handling of the blanks. In the embodiment shown, the machine is organized to feed the blanks from. a magizine to an intermittently rotatable table, to clampthem in position on the table, measure them for thickness, skive them and then carry: them beneath a discharge magazine where they are expel led and stacked in a. pile. In various aspects. however, the invention is not limit ed to a. machine fGXlTPeFEOI'IniDg all these operations;

Another object is to providea feeding magazine to hold blankswhen it is detached from the nachine; and to; release the blanks to a feeding device when. the magazine is placed. in eye-save position on the machine:

BLANIZ TREATING ILVLACHINE.

Serial No. $645,174.

cludes novel means for adjusting the feeding device so that it will operate properly with the different sized blanks and magazines.

The invention also comprises improved securing; means to retain the blanks on a rotatable support or table. Preferably the securing means is automatically operated as by suitable cams as the support or table rotates, the construction being such that the securing means is inoperative when the blanks are fed to the table or expelled theretrom but is operative when the cutting is taking place. Novel means for intermittently rotating the table is also provided.

.rinother object is to provide means to measure the thickness of each blank and then set cutter in accordance with this thickness. In the preferred embodiment, the machine is organized so that a measur ing member engages each blank near the center and then automatically sets thecutter so that the latter will cut in a slightly lower plane than the bottom of the member. Thus, even if the various blanks differ from each other considerably in thickness, approximately the same amount of material will be cut from each. The invention includes also a novel form of presser, an important feature being; that this presser is carried by the cutter head and preferably is yieldably and rockably mounted on the cutter head to properly engage an uneven blank and hold it under yielding pressure.

Still another object is to provide novel means whereby further feeding of blanks is prevented when a discharge magazine has been filled with finished blanks. In the preferred construction, an automatic stop device is mounted in the discharge magazine in such manner that it can be moved toinoperative position whenever it it desired to remove the magazine with its finished blanks.

Other objects and features of the invention will be apparent upon a consideration of the following specification and claims in connection with the accompanying drawings. Although the machine has been described as adapted for operation on top lifts for leather heels, it is not limited to operation on top lifts nor to leather blanks' Referring to the drawings,

Fig. 1 is a front elevation of the machine as a whole with some parts in section;

Fig. 2 is a top plan view with parts in section;

Fig. 3. is a section on the line 33 of Fig. 1;

Fig. 4 is a fragmentary section on an enlarged scale of the receiving magazine and feeding mechanism, the section being taken on the line 44 of Fig. 2;

Fig. 5 is an enlarged section of the knife or cutter and cooperating parts the section being along the line indicated by 5-5 in Fig. 2;

Fig. 6 is an enlarged section of the ejecting mechanism on the line 66 of Fig. 2;

Fig. 7 is afragmentary plan view partly in section of part of the feeding mechanism shown in Fig. 1 the section being on line 7-7 of Fig. 4;

Figs. 8 and 9 are detail sections of the ejecting and feeding mechanisms, respectively, Fig. 8 being on the line 8+8 of Fig. 6 and Fig. 9 being on the line 99 of Fig. 4;

Fig. 10 is a perspective view of a detail of the knife setting mechanism;

Fig. 11 is a development of the cams that determine the sequence of the abovementioned operations;

Fig. 12 shows a plan View of a modified form of clamping device for the heel lifts including a modified form of cam for releasing the clamping device;

Figs. 18, 14 and 15 are sections taken on the lines 13--13, 14l14; and 1515 of Fig. 12, respectively.

Referring to the drawings, 2 indicates the frame which in this case carries two complete machines diametrically disposed. Power from a belt is applied to tight and loose pulleys 3 on the shaft 5 which carries a worm 6 to drive a worm wheel 7 on a vertical shaft 8. The shaft 8 carries a cam member 9 with four cam slot-s which operate the measuring, cutting, feeding and ejecting mechanisms, respectively. For rotating the support or table 10 intermittently, the shaft 8 carries, at its upper end, two cranks 11 and 12, the upper crank 11 being pivotally connected by a link 13 to an upper ring 15 and thelower crank being pivotally connected by the link 14 to a lower ring 16 (see Figs. 1, 3 and 6). These two rings 15 and 16 surround the sleeve 17, integral with, and depending from the table 10 and each ring pivotally carries a spring pressed pawl 18 which in turn engages with teeth 19 disposed at intervals around the table sleeve 17 keyed tothe latter. There are six teeth on the table spaced60 apart and one pawl 18 on each ring, the two pawls being spaced 60 apart. It will be apparent that rotation of the shaft 8 will. cause rotation of the table intermittently through the described parts. The two cranks 1.1 and 12 are diametrically arranged and consequently there are two positions at which their crank pins will be atcdead centers with reference to the shaft 8 and the pivots between links 13, 14C and the rings 15, 16. At these positions, the table is stationary and it is then that the operations of feeding, cutting and ejecting occur. The number of teeth may of course be varied, depending on the number of machines disposed around the center line.

Referring to Figs. 4 and 9, there isshown a lift feeding magazine 20 detachably mounted in a holder 21, 21, adjustably supported in a yoke or bracket 22 and overlying the rotatable table. Each feeding magazine 20 carries spring pressed catches 23 which normally support, in the magazine a series of heel lifts but these catches are designed to release the lifts automatically when the lugs 23 on the catches engage the holder 1 21, 21. The lifts then drop into the lower portion of the holder as indicated in Fig. 41. It is intended that different sized magazines shall be used for different sized lifts and the holder 21, 21 is therefore made adjustable to accommodate the different magazines. This adjustment is effected by the following appliances. (See Figs. 2, 41 and 6.) A threaded stud 2 1 secured to the hold ing member 21 passes loosely through the yoke or bracket 22 and carries a knurled nut 25 which is threaded both inside and out but one thread is right and the other left. The nut is held against longitudinalmovement by an integral collar 26 engaging behind lugs 27 on the yoke or bracket 22.

Referring to Fig. 2, the exterior threads on the nut 25 engage the threaded extremities 28 of bell crank levers 29 pivotally mounted on the yoke at 30. The arm 31 of each bell crank lever is slotted to receive a pin 82 projecting radially from a rod 33 slidably mounted in the slotted sleeve 84 on the yoke 22. The rod 83 carries the holding member 21 which is operated simultane ously with the holding member 21 upon rotation of the nut 25, as is obvious. The holding member 21 engages the breast of the heel lifts and has horizontal lugs 35 to supportthe lifts. The holding members 21 engage the curved sides of the heel-lift and have horizontal supporting lugs 36. The

holding members 21-" are cut away near the button-i at d "aoen t the curved sides of the lowermost lift in order to allow the lift 10 be fed, but they extend low enough to aid in retaining the seco ill lift in position. The holding member 2'1 is curvc-zd Where engaged. by the breast of each lift in order to position the series of lifts in overlapping relation.

'The feeding mechanism for feeding the blanks one at a time is shown at the right of Fig. f and includes a sliding feed con trolling finger 41 mid sliding and swing in'g feed control-ling linger 450 both of Which are adjustably mounted with reference to the feeding magazine 20. The finger 40' is slidable in guideiva'ys 4-2 on a carrier 43 which is pivoted at L45 on an adjustablebrack'et 4-5. The bracket 41:53 is slotted at 4:6 and is provided with a clan-1p nut 47 which Will hold it in adj usted positions along the guideways 48 in the yoke 22'. The finger 450 is pivoted at 49 to a lever 50, this lever being pivoted loosely at one end at 51 to the bracket 4L5 and being pivoted near its middle at 52 to the carrier 4-31 The swinging of the carrier 43 on its pivot 44 will obviously act to raise and lower the sliding linger" 40 and the carrier will also impart own swinging motion to the finger.

The finger 1 1 slides vertically in guide- Wars 42 fixed to the bracket 45, the sliding action being produced by a second lever 53 pi oted at to the carrier 43. This lever loosely pivoted at F5 near its middle to the bracket and its inneren'd is connected to theupp end of finger by a coil spring 56; This coil s -irin'g tends to pull the finger down against a stop collar 57 fixed to a; re The rod is pivoted to the lever HU- -3 and passes loosely through a lug on the upper end of the finger 41 and acts to raise it positively. The swinging of the carrier 4t?) will obviously impart a swinging": action to the lever 58 \v-l'iich will in turn raise or lower the finger 41. The finger i l and i allow the lever swing shown in Fig. l Without interference. A spring 59 acts against abutment to re store the su 'ingin carrier 43h normal posiso and the finger 40 to tieu after it has been moved in the feeding operation.

A horizontally reciprocating feed member or dog 60 pushes the lowermost lift against the finger 40 and" this swings the carrier t?) about its pivot 44-. The pivot will be raised and likewise the pivot 49 to a greater extent, thus raising the finger 40 to allow the lowermost lift to" pass. The pivot 54 will be raised. thus swinging the lever 53 on its pivot 55 and lowering the slide finger 4 1. The finger 41 Will engage the top surface of" the lowermost blank and deway 42 have cut out portionsto freely to the dotted line positions the spring will allow the finger to yield in case athick blank is encountered. The in er will thus prevent the feeding of the second blank, whatever its thickness. 'ine spring 555 then restores the carrier to n rn'ial position with the finger d0 against the edge of the lowermost blank.

shown in Fig. 1 the dog 60 is sup- LLG-Ll on substantially parallel links 61. 62 p voted to the frame at 68, and 64 respectively. A horizontal motion is in'iparte'd to links and the feed dog by an arm 65 "WlIOS'G slotted end 66 reinovably engages a pin 6? on a crank 68. This crank is mounted on one end of a shaft 69 supported in: bearings on the frame, and the other end of the shaft carries an arm 70- having a cam following roller 71 adapted to engage the cam surface 72' on the earn 9.

The lifts are pushed out one by one onto the rotatable table 10- where they are grippod at the rear by plates 80 (Fig. 4) and at the breast part by a sliding clamp plate 81 pressed towards the lift by a spring 82. The plate 81 cannot move however until the table rotates sufficiently to enable the win 83 to pass off the cam surface 84 (See Figs. 3'. t a-nd 6). This cam surface 84. is fixed and is secured to a depending bracket carried by the yoke 92. The plates 80' and 81 are undercut to aid in ripping the lift and in holding it down.

Withthe lift secured on the tahle. the ier rotates until the lift comes beneath 5. The cutter head 90 has an integral sleeve 91 to the upper end of which a belt pulley 92i'ssecured. The pulley 92 is driven by a belt from the pulley 4' on the main drive shaft the belt also passing over pulleys 93- and' 94. The cutter headQO has do vnwardlv opening: sockets 95 containing: pins 96' which are secured to the presser plate 95 The pins 96 are loose in the sockets and are carried by bolts 98 which pass fl'll'f-Hlfll'll onenino's in the sockets and springs 9. allow the pins and presser plate 97 to meld or rock somewhat when an uneven lift is encountered. The cutter head 90 carries a knife or cutter 100 shown best in Fig. and indotted lines in Fig; 5}. This knife 100 extends obliquely through slots in the cutter and in the presser plate to engage tl c blank: the knife could. if desired, be formed integrally with the member 90.

The cutter head 90 is raised and lowered with a sleeve 101 which rests against the nullev at its upper end and engages a thrust bearing 102 at its lower end. For operating the sleeve- 101. a bifurcated lever 103 (see Fig. 1) is pivoted to a fixed pivot 104 and is connected to the sleeve 101 by pivot bolts 105. The inner end of the lever 108 is pivoted at 106 to a block 10-? through which passes a rod 108 having a stop collar measuring and cutting device shown in at the upper end. The lower end of the rod 108 is secured to a slotted block 109 which slides in guides 110 on the frame. A. stiff coil spring 111 normally presses the block 107 against the stop collar and yieldingly forces the cutter downwardly when such action is permitted under conditions to be described.

The distance which the cutter is depressed is determined by a measuring rod or cutter setting device which extends down through the cutter head and engages the top face of the heel lift. The rod 120 is loosely pivoted at its upper end to a lever 121, the lever having a pivot support at 122 on a bracket 123. An arm 124 is formed integrally with the lever and is connected with the bracket 123 by a spring 125 so that the measuring rod is normally pressed downwardly. The position of the rod determines the position of the knife in the following way :The lever 121, at its lower end, has a fork with inwardly directed pins 131 engaging in slots 132 in a wedge member 133 (shown in detail in Fig. 10). The wedge member 133 is forked and slides between the sleeve 101 and a fixed casing 134; the position of the wedge will obviously determine the amount the cutter head can descend. The wedge member has guides 135 to engage and slide on guideways 136' on the casing 134. (See Figs. 5 and 10). The wedge has also at one side a projecting plate 137 with teeth 138 thereon. These teeth co-operate with a pivoted pawl 139 to lock the wedge to hold the measuring rod raised. The pawl is normally pressed into action by a spring 140 but it can be released at the proper time by a lever 141 pivoted to the frame at 142.

Before the measuring rod can descend, the pawl must be released and, for this pi1rpose, the lever 141 is pivotally connected at 143 to a cross rod 144 (see Fig. 1). One rod 144 operates two sets of levers, pawls, etc. as shown, and is connected to hell crank 145 pivoted to the frame at 146. The bell crank is connected by links 147 to lever 148 and the latter has a cam roller on one end to engage a cam 150 on the cam shaft 8.

For restoring the wedge 133 to raise the measuring rod or cutter setting device, the lever 141 has an arm 151, which at a time determined by the cam 150, will engage the fork130 and push the wedge inwardly where it will be locked by the pawl 139.

The cutter head is controlled by a cam on cam shaft 8. The cam engages a roller follower on the lever 162 and a link 163 connects lever 162 with bell crank 164. The latter is pivoted on the frame at 165 and has one arm connected by a rod 166 with a toggle 167. When the toggle links are straightened, the block 109, previously described, is free to rise in the guide 110 and the spring 111 causes the cutter to descend. Conversely, breaking the toggle will raise the cutter head so that the wedge can be subsequently operated to raise the meas v uring rod.

The cutter head and knife revolve rapid- 1y at all times, and, when the measuring rod has engaged the middle of the heel lift, the knife is arranged to come a trifle lower in order to skive off the lift. A small part of the surface in the middle of the lift will not be cut at first because the cutting surface of the knife extends inwardly only to the periphery of the rod. However, as soon as the lift is carried around slightly by the table, the center of the lift will also be skived off even with the outer portions.

The next operation is that of ejecting the skived lifts. (See Figs. 5 and 6). The lift, as it leaves the cutter, is in a clamped position on the table due to its engagement with plates 80 and 81. To release the lift when it arrives beneath the discharge magazine 170, the fixed cam 84 engages the pin 83 and pushes it to the left as viewed in Fig. 6; this releases the lift, whereupon a plunger pushes it up into the magazine 170. This magazine 170 is similar to the magazine 20 but carries a spring pressed catch 171 (see Fig. 8) having a'beveled lip 172, the bevel being engaged by the lift to turn the catch on its pivot in order to allow the lift to rise in the magazine.

To expel the lift, a cam controlled plunger or ejector 173 is provided (seeFigs. 5 and 6) it has projecting pins 174 sliding in slots in a socket or sleeve 175 secured to the table 10. The plunger is normally held down by a forked leaf spring 176 attached to the table and engaging" the pins 174. The plunger is lifted automatically by the arm 177 (see Figs. 1 and 6) which has bifurcations engaging the pivoted to the framework at 178 and is rocked by an arm 179, link 180, arm 181, rock shaft 182 and arm 183 which latter is actuated by the cam surface 186. The arm 177 opposite to arm 177 is connected directly to the arm 183 by a link 185.

To prevent further feeding when the magazine 170 is full of lifts, the slotted link 65 is automatically raised from engagement with the pin 67 (see Figs. 1 and 2). This is accomplished by a roller on a rock arm 191 secured to a shaft 192 journaled in the framework. The shaft has a second arm 193 thereon whichis connected by a rod 194 with an arm 195 and a'disk 196 near the top of the magazine 17 0. The disk 196 is suspended from the arm 195 by a stem 197 and both disk and arm are raised vertically by the lifts in the magazine as the latter fills up. The arm 195 compresses a coil spring 198 and thus yieldingly raises the rod 194 to automatically disengage the feed pins 174. The arm is g link 65. The rod 119a slides in a bearing 199 on the framework and has a button 200 swivel led thereon which can be turned 'to rest on a lag 201 {on the bearing 19!) to thereby maintain the rod raised and the feed link 65 in non-feeding position. The disk 196 and arm 195 are swung around manually over the top of the magazine 170* when the latter is full and the magazine can then be removed and a like one substituted.

Referring to Fig. 11 a development of the cam surfaces is shown and the sequence of the operations oi? feeding, measuring, one ting and ejecting is indicated. The timing can of course be varied as conditionsnecessir tats.

Referring to Figs. 12 to 15., a modified form of clamping device for the bits is shown. A series of clamping lugs 211 having downwardly extending studs 212 .are mounted on the table 10 to slide radially with reference to the center of the ejector. The studs 212 areguided in radial slots 213 in the table 10. The studs 212 project below the radial slots into a series of spiral {slots 21'? in a cam plate 214 wl'iich is secured between the table 10 and a spanner nut 216; the spanner nut is screwed onto the outer surface of the ejector socket 1:?5 and bears against a shoulder on the socket. .illhe plate 214, with its spiral slots, acts as a .cam to force the clam-ping lugs outwardly and linwardly in the radial slots, and aspring220, attached atone end to a stud-218 on the tahle, and at the other end to an arm 2:19 on the plate 214-, normall-y holds the plate in a position to clamp the hit.

As the table rotates, :the clamping lugs will be simultaneously released when the adjustable bolt222 carried on the lug 221 tengages a cam surface 224: on an interrupted ring member 223. The ring member 223 is supported :by the bracket on the yoke-'22. The head of the bolt-222 rides on the-incline- 224k and retracts the clamping lugs 211, the lugs remaining in unclamped position as long as the bolt 22,2 remains in contact with the interrupted {ring member 223.

The operation will be apparent from a careful reading of the above but briefly the action is as. follows: A magazine ifllll of lifts is placed in position as shown :in Fig. a and the feed dog pushes them .out.one atatime upon the intermittently rotating table where they'are clamped in position and car ried :under the knife. (See 5 The measuring rod descends upon the lift and determines the position to which the cutter may descend in accordance with 1110 thickness of the lift. The cuttingtakes place, the table rotates again and carries the lift to theejecting position .where it is automatically released and then pushed up ;i-nto.'the discharge magazine. When the latter s full, the feed is automatically out off.

complete machines are sh wn; they are s b antially duplicates i rically disposed but the device is not 11, nited to any particular umber of mac i e although a plurality of mach nes i better adapted to secure readily a compa t and convenient asse bly to economize space and renders unnecessary a complete duplication of all the parts.

Haring described any invent on, what .1 claim as new and desire to seculie by Letters Patent ot' the United .Sta es is:

1. In a blank trea ing mac ine, .a teed ag ine, .a rotary t bl means to teed blanks one by one from {the magazine to the rotary table, means to secure the blanks .on the rotarytab ain an tc measure he b ank and skie them while secured on the ro ary table, and means to transfer the blanks trom the rotary table to a stacking ma azine.

2. In a blank treating machine, a feed magazine, ,a rotary table, means vto teed blanks one by .one from the magazine to the rotary table, meansto secure: the blanks on the rotary table, ,means to skive the {blanks while secured .on the rotary table, and means to transfer the blanks trom the rotary table to a stacking magazine.

3. In a blank treating machine, a feed magazine, a ,rotary .table, means to feed blanks one by :one fromthe magazine to the rotary table, means to skive the blanks while supported on the rotary table, and means to transfer the blanks from the rotary table to a stacking magazine.

11 a bl nk tre ing machine, a rota y ab e, a feed magazine at one sta i n, m ans to feed iblanks ."one .by one from the magazine to the rotary table, and means at another station (to shine the blanks while supported by the rotary table.

5. In a blank (treating machine, a rotary table, a iteed magazine atone station,-means to feed blanks one by one trom the magazine to the-rotary table, and means at another station to measure and skins the blanks while supported by the rotary table.

6. gln ,a blank treating machine, a rotary table, ,a feed 7 magazine at one station, means to feed blanks one by one 'from the magazines .to the rotary table, means operable automatically as the table rotates, .to secure the blanks ,on the table, and ,means at another station to skiye the secured blanks.

7. In a blank treating machine, a rotary table, .a feed magazine at one Station,.1neans to feed blanks one ,by one from the .n agazine to the rotary table, means operable automatically as the table rot-ates, :to secure the blanks (on the .table, and means at another station .both to ski-ye and measure the secured blanks.

,8. In a hlank treating machine, support for blanks, means gtor measuringthe thickness of a blank while resting on the support,

and means for'skiving the blank while the latter retains its position relatively to the support.

9; In a blank treating machine, an intermittently movable support for blanks, means for measuring the thickness of a blank when the support is stationary, means for 'skiving part of the surface of the blank in the measuring position and subsequentlysklving the remainder of the'surface of the blank when the support moves.

10. In a blank treating machine, a rotary table, means to feed blanks one by one to the rotary table, and a rotary knife to operate on the blanks while supported on the rotary table. 1

11. Ina blank treating machine, a movable support, means to feed blanks one by one to the movable support, means to meas-' ure the blanks while on the movable support, a knife to operate on the blanks while on the movable support and connections between said knife and measuring means for adjusting the former from the latter.

12. In a blank treating machine, a movable support, means to feed blanks one by one to the movable support, means to measure the blanks while on the movable support, and a knife located at the same station as is the measuring means and adapted to operate on the blanks in the measuring position.

13. In a blank treating machine, a movable support, means to feed blanks one by one to the movable support, blank securing means operable by motion of the support, and a rotary knife to operate on the blanks in their supported and secured positions.

14:. In a blank treating machine, a movable support, means to feed blanks one by one to the movable support, blank securing means operable by motion of the support, means to measure the blanks while on the support, anda knife to operate on the blanks, said knife being set by the measuring means.

15. A machine of the class described having, in combination, a support for a blank, a cutter for evening the blank adjustable toward and from the support, mechanism for measuring the thickness of the blank,

and means for adjusting the cutter in accordance with the determination of the measuring mechanism.

16. A blank treating machine having, in combination, a support for blanks of different thicknesses, a cutter adjustable toward and from the support, and means including a measuring member movable by contact with the blank with respect to the cutter for adjusting the cutter into a position dependent upon thethickness of the blank at the 10- cality engaged by the measuring member.

port for blanks, a rotary cutter, means to move the cutter axially, and means to engage V a supported'blank to predetermine the position to which the cutter shall move.

19. In a blank treating machine, a support for blanks, a cutter, a measuring rod to engage a supported blank, and a wedge connected to the measuring rod to determine the ultimate position of the cutter.

20. In a blank treating machine, a support for blanks, a cutter, a measuring rod to engage a supported blank, a wedge connected to the measuring rod, means to lower the cutter to a position determined by the position of the wedge, and means to raise the measuring rod and to lock the wedge.

21. In a blank treating machine, a vertically movable cutter, a measuring rod, means connected to the rod to determine the distance the cutter shall descend, means to raise the cutter, and means to raise the rod.

22. In a blank treating machine, a movable cutter, means to raise and to lower'the cutter, means to determine the lowermost position of the cutter, a lock for said means, and releasing means for the lock.

23. In a blank treating machine, a support for blanks, a movable cutter, means to raise and to lower the cutter, a rod to en gage a supported blank, a lever secured to the rod, and means connected to the lever to limit the lowermost position of the cutter;

24.18, blank treating machine having, in combination, a support for the work, a cutter, yielding means for urging the cutter toward the support, an adjustable stop for limiting such movement, and measuring means arranged to contact with the work and to adjust the stop in accordance. with the thickness of the work.

25. A machine for evening blanks having, in combination, a substantially flat support for a blank, a rotary cutter the plane of the cut of which is substantially parallel to the plane of the support, means for adjusting the cutter yieldingly into a position parallel to but spaced from the support, means for causing relative movement be tween the cutter and the support in a direction transverse to the direction of the adjusting movement to cause the blank to be evened, and means acting automatically to raise the cutter at the end of the evening operation.

26. In a blank treating machine, a cutter, means for rotating the cutter, a lever to raise and lower the cutter, a toggle to control the lever, and means for intermittently actuating the toggle.

27. In a blank treating machine, a cutter, means for rotating the cutter, a spring tending at all times to move the cutter into operative position, a toggle, and means for operating the toggle intermittently to press the spring and withdraw the cutter from operative position.

28. A machine for eveningblanks comprising a substantially flat support for a blank, a rotary cutter the plane of the out of which is substantially parallel to the plane of the support, automatic means for adjusting the cutter into a position dependent upon the thickness of the blank and means for producing relative movement between the support and cutter in a direction to cause the blank to be traversed by the cutter.

29. In a blank treating machine, a movable support, a sliding clamp plate on the support, a spring to close the clamp plate, and a fined cam to open the clamp plate against the tension of the spring and to subsequently allow the spring to close the clamp plate.

30. In a blank treating n achine, a mo:- able substantially lat support, a sliding clamp plate on the support, a feeoing station, an ejecting station, a spring to close the clamp plate as the blank leaves the feeding station, and a fixed cam at the ejecting' station to open the clamp plate against the tension of the spring.

31. In a blank treating machine, movable substantially tlat support, blank clamping means on the support, a feeding station, an ejec station, a tired cam at the feet ing station to open the clamp the lattreaches the feeding station, a spring to close the clamp as the latter leaves the tee station, and a tired cam at the ejecti tion to open the clamp against the l. of the spring.

32. ln a blank treating nuichine, i able support, a clamp plate fixed on the support, a slidable clamp plate on the support, a spring to close the slidable clamp plate, and a fixed cam to open the slidable clamp plate gainst the tension of the spring.

ln a blank treating machine, a supaort for blanks, an axially movable rota; cutter head to operate on the supported. blanks, and a rockr ly mounted presser plate carried by the cutter head.

34;. In a blank treating machine, a rotatable cutter head and a presser plate rockably carried by the cutterhead to eng the top face of an uneven blank to hold it while being cut.

in a blank treating machine, cutter head, presser plat-e, spring pressed plung ers loosely moruited on the cutter head, an

connected to the presser plate whereby the latter may yield and rock when in engage ment with a blank.

36. In a blank treating machine, a rotary cutter head having a slot therein, a presser plate located below the cutter head and rotatable therewith, s. L plate having a s to register with that of the cutter he and a knife secured the slot in the head and extends through the slot ii presser plate.

3?. in a blank treating machine, a slotted cutter head, a slotted presser plate yieldably carried by the cutter head, and a knife secured in the slot of the cutter head and adapted to extend through the slot in the presser plate when the latter engages a supported blank.

38. lfn a blank treating machine, a cutter head, a slotted presser plate yieldablv carried by the cutter head, and a knife swured to the cutter head and adapted to extend through the slot in the presser plate when the latter engages a supported blank.

89. In a blank treating machine, a magazine holder adjustable to receive di'tlerent sized magazines, blank supporting means carried by the holder below the magazine, and feeding mechanism adjustable wit-h reference to the supported blanks.

40. In a blank treating machine, a bracket, a magazine holder adjustable on the bracket to hold ditlerent sized magazines, and feeding mechanism adjustable with rat erence to the holder and its supported magazine.

41. In a blank treating machine, magazine holder adjustable to receive diflierent sized magazines, and means carried by ti o holder below the magazine "to support the blanks when released from the magazine.

e2. A machine for evening blanks, comprising a substantially flat support for a blank, means for pressing-the blank against the support, a cutter the plane of the cut of which is substantially parallel to the plane oi the support, and means :t'or moving the support and with it the blank past the cutter.

43. A machine for evening blanks, comprising a substantially flat support for a blank, means "for clamping the blank upon the support, means for pressing the blank against the support, a rotary cutter :the plane of the cut of which. is substantially parallel to the plane of the support, and means for moving the support and with it the blank past the cutter.

44,-. In a blank treating machine, an adjustable holder for magazines of different sizes including a breast engaging member, side engaging members, levers connectedto the side engaging members, and a -nut=toen gage both the breast engaging member and I the levers to move all the engaging members simultaneously.

justable holder for magazines of different sizes including a breast engaging member, a threaded stud secured thereto, side engaging members, levers secured to the latter, a nut threaded on the stud and extoriorly threaded in an opposite direction to engage the levers whereby the engaging members can be moved simultaneously.

4.6. In a blank treating machine, an adjustable holder for magazines of different sizes including a breast engaging member having a threaded stud mounted slidably in a fixed support. side engaging members each having a rod slidably mounted in a fixed support, bell crank levers pivoted on the fixed support and each connected to one of the rods, a nut threaded on the treaded stud, a collar to hold the nut against axial movement, and threads on the outer surface of the nut to engage the bell crank levers.

47. In a blank treating machine, the combination of feeding means, a discharge magazine, a rod, a rotatable arm on the rod, a

' stop secured to the arm and adapted to be tions between the arm and the feeding means.

49. In a blank treating machine, the combination of feeding means, a discharge magazine, a movable stop therein adapted to stop the feed, and means for moving the stop away from the magazine to allow the removal of the latter.

- 50. In a blank treating machine, the combination of feeding means, a discharge magazine, a stop therein adapted to stop the feed, and a rotatable arm carrying the stop whereby the stop and arm can be swung away from the magazine to allow the removal of the latter. v

51. In a blank treating machine, the com bination of feeding means, a discharge magazine, a slidable stop in the magazine con neoted to the feeding means, and means for swinging the stop outside the magazine to allow the removal of the latter.

52. In a blank treating machine, the combination of a feed member, a discharge magazine, a stop inside the magazine adapted to be engaged by the blanks in the magazine when the latter is full, and a connection between the stop and the feed member to stop the latter.

53. In a blank treating machine, the combination of a feed member a discharge magazine, and a connection between the discharge magazine and the feed member to stop the latter when the magazine is full.

541. In a blank treating machine, a discharge magazine for holding a stack, a stop within the magazine, and means whereby the stop can be moved outside the stack to allow the removal of the latter.

55. In a blank treating machine, a magazine, a ieed member, and relatively movable fingers for controlling the feeding of blanks from the magazine, said fingers being operated by the feed member through the medium of the blanks.

In a blank treating machine, a ma asaid mechanism including a sliding and swinging finger.

57. In a blank treating machine, a magazine, a feed member, feed-controlling mechanism operated by the feed member, said mechanism including sliding fingers and being adjustable with reference to the feed member to feed different sized blanks.

58. In a blank treating machine, a magazine, a feed member, and feed-controlling mechanism operated by thefeed member and adjustable with reference to the feed member to operate'on different sized blanks.

59. In a blank treatin machine, a magazine, a feed member, fee -eontrolling mechanism including a swin ing carrier having a sliding finger operated by the feed member to swing the carrier in one direction, and a spring to restorethe carrier to normal position.

60. In a blank treating machine, a magazine, a feed member, and feed-controlling mechanism including a swinging carrier having a sliding finger operated by the feed member through the medium of the blanks.

61. In a blank treating machine, a magazine having an outlet, means for feeding blanks through said'outlet, and mechanism for controlling the number of blanks which can be fed through the outlet at onetime, said mechanism including movable fingers extending across said outlet and connections between said fingers such that pressure exerted upon one of the fingers operates both of them.

62. In a blank treating machine, a magazine having an outlet, means for feeding blanks one by one through the outlet and mechanism for preventing the feeding of more than one blank at a time through the outlet, said mechanism including a finger adapted to be swung outwardly to permit the lowermost blank of the stack to be fed, and a second finger adapted to be brought down upon the top of the lowermost blank, and connections between the fingers such that swinging oi the firstmamed finger outwardly causes the downward movement of the second-named finger.

6?). In a blank treating machine, a magazine, feed-controlling mechanism including a swinging carrier, a sliding finger thereon, a second sliding finger, and levers, each pivotally connected with a fixed support, with the carrier and with a sliding finger.

64. In a blank treating machine, a magazine, feed-controlling mechanism including a swinging carrier, a sliding finger thereon, a lever pivotally connecting the finger with a fixed support and with the swinging carrier.

65. In a blank treating machine, a magazine, feed-controlling mechanism including a swinging carrier, a sliding finger thereon, a lever pivotally connected with the finger, with a fixed support and with the swinging carrier, a second sliding finger mounted in a fixed guideway and a second lever pivotally connected to the carrier, to the fixed support and to the second finger.

66. In a blank treating machine, a rotary support, a drive shaft, oppositely extending cranks thereon, and means connecting the cranks to the support to rotate the latter intermittently.

67. In a blank treating machine, a magazine having an outlet, a feed member, means for operating the feed member to push the blanks through the outlet, relatively movable fingers extending across the outlet and adapted to prevent the feeding of more than one blank at a time through the outlet, said fingers being operated by the feed member through the medium of the blanks.

In testimony whereof I have signed my name to this specification.

IRA C. BUCKMINSTER.

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