US1458187A - Press - Google Patents

Description

June 12, 1923'. 1,458,187 A.E.HUDSON PRESS Filed Feb. 25, 1921 3 Sheets-Sheet 1 Fi-gm;

June 12, 1923. 3,458,187

A. Ev HUDSON PRESS Filed} Feb. 25, 1921 3 Sheets-Sheet 2 m a 0 6 w m M mwxmwvllzxr/ 1 2 6 2 60 v 0 00 42 xw m 6 llw m, P 1 M L. M w 4 2 Z a o I g 6 01 F0 WW 0 24 1 1 June 12, 1923.

A; E. HUDSON PRESS 3 Sheets-Sheet sl l/E/V 70/? JWK 1 4 1 4 a v, w m 2 2 M m Fetented June 125, i923 barren arena" essica ALBERT E. HUDSON, 013 BEVERLY, MASSACHUSETTS, ASSIGNOB TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PRESS.

Application filed February 25, 1921.

T aZZ 'w/zom 2'2 may concern:

Be it known that I, Am'innr E. HUnsoN, a citizen of the United States, residing at Beverly, in the county of Essex and State of 5 Massachusetts, have invented certain Improvements in Presses, of which the following description, in'connection with the accompanying drawings, is a specification, like reference characters on the drawings indi eating like parts in the several figures.

This invention relates to presses and more particularly to presses of the type employed in cutting sheet material by the use of freely movable dies. I

One type of press which has given very general satisfaction in the art of cutting sheet material is that known commercially as the clicking machine. As shown in United States Patent No. 921,503, granted May-ll, 1909, upon application of Arthur Bates, this machine comprises characteristically a work supporting bed of considerable area and a presser member having a presser surface of less area than the bed and mountet at one end so as to be movable over the bed to cooperate with different areas thereof from one end of the bed to the other. The machine has proved so advantageous in the cutting of sheet material. that its use has been extended beyond that originally contemplated. l i hereas as originally designed.

the machine was intended for the cutting; of

relatively thin sheet material, it is now also employed in the cutting of thick and heavy sheet material and of fabrics piled in a multiplicity of layers. I

It is an object of the invention to provide an improved press which, while especially applicable to heavy work, retains all of the important principles of construction that contribute to the high elliciency and general desirability of the commercial. clicking machine.

In the illustrative machine a movable presser member is provided having integral trunnions for mounting the presser member on the frame of the machine. From another view point, the presser member and the post which supports it'are exhibited as one, integral, strongly constructed member, capable of forcing a die through the many thiclc nesses of work which can be interposed between the presser member and work supporting bed, without angular displacement of the presser member. In other words, the

Serial No. 447,650.

pressure applying surface of the presser member is maintained parallel with the surface of the bed during pressure applying operations, the result being perfect cutting of the material and greatly prolonged life for. the dies and the cutting block over previous records.

The invention contemplates also an improved mounting for the presser member. whereby friction during reciprocation of the member is reduced thus lessening wear of the parts and conserving power.

In order that the presser member may be moved over the work supporting surface of the bed with the minimum of effort on the part of the operator, power means is provided for that purpose, important features of the invention residing in improved means for moving the presser member and particularly in the controlling means which enables the operator to move the presser member with ease and dispatch to the desired location and to cause a pressure-applying movement of the presser member, upon proper manipulation of a single member. The construction of the means for moving, the presser member laterally overthe bed is preferably such that the controlling means may be operated to disconnect the moving means from the presser member so thatthe latter may be moved directly by the hand when so desired.

Other important features of the invention, including com iinations of parts and details of construction, will be described in the specification and pointed out in the up-- pended claims.

In the drawings Figure 1 is a view in side elevation and partly in section of a press embodying the invention i Fig. 2 is top plan view partly in section of the power means for moving the presser memberlaterally of the bed; I

3 is a detail of the power means and of the controlling means therefor in side elevation and partly in section;

4- is a detail of the cable connection between the. presser member and the power means for movingthe same;

Fig. 5 is section through the upper end of the post andv the upper bearing for the same;

Fig. 6 is a broken-away sectional view taken along the line 66 of Fig. 5; and

I Fig, 7 is a detail view of l anti friction device'taken along" the line 7. .7 of Fig. 6. i

In the illustrative machine the work is positioned for cutting operations upon a table or block 1 O*which' is adjustable vertically in't'he frame l2-of the machinethrough the operation of screw threaded members in.

I accordance with an old and well known arrangement. For co-operation with the work supporting bed 10 there is provided a presser member ll which. is. movable; toward. and from the bedin pressure applying opera. tions and also laterally of the bed-111 order that. work may be, operated upon wherever located on the bed. For. supporting the. presser member for rotation and also for reciprocation in the frame of .theamaehine there is provided-a post 16 which is." receivable in bearings, one of which isv indicated at 18 and is preferably integral with the frame of the machine; The other heating 'is shown at 20,. and in the preferred con;-

struction. is adjustably mounted upon the upper end of the frame as will be herein.-

the connection between. the presser arm anv'l its supporting post. In those prior constructlons wherein the presser' member is. yieldingly mounted so as to spring away.

from the bed, the dies are often forced into the block much deeper at one end than at theother, thus subjecting the dies. to strains which not infrequently result inbrealrageflof the latter and also damage to, the. cutting surface of the bed or cutting block. In the illustrative construction the pressermember is maintained withits pressureapplying surface parallel tofthe bed thus ensuring clean and perfect cutting of the material and rc-. moving the causeof much of the damage to dies and cutting blocks heretofore eXperienced during cutting operations. From another viewpoint, the combinedpresser arm and post may be regarded a presser arm having integral tru- nnions 22, 24 which support the presser arm in the bearings 18 and '20, respectively. Extending through the power post 16, is a shaft 26 secured torthe upper end of the post as shown in Fig, 5 and; having its lower end operat-ively.conn c d he horizontal, power shaft 28 It will be readily underthrough a pitm-anBO pivoted toth shaft 26 at. 32, the said pitman' having a portion which surrounds an eccentric 34 on the shaft 28. As shown in F ig. 1 the shaft 28 is mounted in bearings in the bottom 'part of the machine frame and is provided with a power pulley 36 arranged to be connected with the shaft through clutch mechanism 38 which may beof any well known type of one revolution non-repeating clutch mechanism. Mounted in the upper portion of the frame is a lever 40 which is, movable about horizontal pivot to control the-clutch 38-.through the connecting rod 42, asingle actuation, the manually operable lever 40 resulting; in onepressureapplying operation upon work positioned on the bed 10.

The power means-for moving the pressermember laterally along the bed 10 into and;

out ofany selected posit-ion with reference towvork supported on; the bed comprises in the construction shown. a horizontal shaft: 44 (Fig. 2-). which has attached-fixedly to one end thereof a pulley 4:6, Surro undingi the shaft 44' is a sleeve 48;, in two-parts to facilitate assembling. of the, sleeve on the shaft, andjinounted in the; bearings 50, 52,. provided by a bracket 5i siua portedw rponrelatively long pivot bar 56. provided with asuitable bearing in the frame ofthe runchine. Secured to. the sleeve ts on integrally,

formed with. a portion thereof is a; pulley 58. Rererring again to Fig. i it will he observed that in the illustrative construction the power pulley 36 has integrally for-med therewith or securely attached thereto a couple of pulleys 60,. 62 and extending; from the pulley to the pulley 46 is cablehl which is crossed intermediateof its len th. A similar cable 66 connects the pulley 62: with the pulley 58. and since the pov i ley86 with the attached pulleys 60, ans 1; running continuously it follows that the shaft. 44 and the sleeve -18v are also turning continuously. Due to the crossinggne-fthe cable 64 intermediate of its length, the pu-h ley i6. is. however, turning ina direction opposite to that'of pulley 58. Mor n ed tatably upon intermediate portion oil? the shaft 4,4 is a sleeve 68 towhich is. keyed; a clutch member 70. having; securely attached thereto. a sprocket wheel Til by means including a screw threaded bolt 74. Betweenpne end face of the member 70 and the-asleeve clutch-member 76 is interposed set o" tion clutch plates 78 surrounded and;

taiued in place'by the flange portiontltl the iii ember 76. Upon.naeving the nieinher 70 to. the right in Figure 2,, thesaid member isclutched to; thesleeve l3 and caused to rotate with the sleeve as a seu ee of power which is transmitted through] the sprocket chain 82 which en-ga at one endwith sprocketZZ andw' h its ether end he sprocket 8. .1.;- on the Wdtihshaftfifi, *Re

ferring to the pivoting of the bracket 54 on the pivot rod 56, it should be pointed out that adjustment of the bracket toward and from the frame (Fig. 3) is secured by means of two set screws 85 and 87 (Fig. 2), one of which holds the bracket in adjusted position and the other of which is utilized to make the adjustment in a manner that will be well understoodwithout further description. The purpose of the adjustment of the bracket toward and from the frame is to provide for proper tensioning of the sprocket chain 82. Movement of the member to the left in Fig. 2 results in clutching the said member to the clutch member 88 which is pinned to the shaft 44 and is of the same general construction. as the clutch member 76 in that it contains another set of friction plates 90 similar in all respects to the plates 78. When the member 70 is moved to the left as described it is clutched to rotate with the shaft 44 and hence the sprocket wheel 72 is then rotated in a direc* tion opposite to that first described. For shifting the member 70 in opposite directions selectively at the will of the operator connections are provided between said member and the manually operable member 40 which is so mounted as to project into a position accessible to the operator standing at the front of the machine. In the illustrative construction, these connections comprisea vertical rod 100 mounted'rotatably in bearing 102 in a bracket 104 secured to the frame of the machine, a collar 1P6 pinned to the rod serving to limit movement of the rod in one direction with respect to its bearing and the connecting member 108 also pinned to the rod above the bearing 102 operating to limit movement of the rod in an endwise direction and furnishing the connection with thelever 40 by which the rod is rotated. At the lower end of "the rod 100 and pinned thereto is sleeve member 112 carrying arms 114 with inturned ends arranged in alignment with each other and carrying rolls 1.16 which are receivable in a circular slot 118 in theperiphery of the member '70. It will be clear that the construction of the connecting member which operates to shift the member 70 in an endwise direction is such as to maintain connection with the member 70 whilepermitting rotation thereof in either direction. Referring to the construction illustrated in Fig. 3 it will be observed that the worm 124 which is securely attached to the shaft 86 is constantly in mesh with a worm gear 126 mounted for rotation upon the upper end of a shaft and normally held to rotate with the shaft by means of a latch member in the form of a sleeve 130 having a projection 132 receivable in a recess 134 in the flange portion of the worm gear 126 and normally maintained in latched relation by the spring 136. It will be understood that the sleeve 130 is keyed to the shaft 128 as indicated at 138 (Fig. 1), the arrangement being such that the key holds the sleeve 180 to rotation with the shaft but permits it' to slide endwise on the shaft into and out of latching relation to the gear wheel 126. Intermediate of the bearings 140, 142 f r the shaft 128 is a drum member 144 to which the ends 146, 148 (Fig. 4) of the cable 150 are attached, the said cable intermediate of its ends being wound around a drum 152 in tegral with or securely attached to the post 16 which carries the presser member 1-. In the illustrative construction the drum member 144 is mounted for rotation on the shaft 128 but is held frictionally for rotation with the shaft by means of a friction plate 154 which is keyed to the shaft 128 as indicated at 155, a circular plate 157 being mounted upon the hub of the plate 154 and being connected to the drum 144 by bolts 158. As shown, springs 156 are interposed between the heads of the bolts and the under surface of the plate 157, thus drawing the drum 144 and the plate 157 yieldingly toward each other and into contact with opposite sides of the friction plate 154, whereby the drum is held frictionally to the shaft 1 8. It will be understood that the bolts 158 cross the space between the drum 144 and the plate 157 outside of the periphery of the friction plate 154 so that the only connection between the drum and the friction plate is that established by contacting with the adjacent face of the friction plate. I

Referring to Figs. 1 and 3 it will be seen that the starting lever 40' is pivoted by the rod 100 for lateral swinging movement, and also that the connecting member 108 between the rod. and the lever 40 is provided with a pivoted bolt 170 which is horizontally arranged so that the lever may move in a vertical plane to control the clutch on the main shaft 28. As heretofore pointed out the rod 100 is oscillatable selectively in two directions in the same plane to shift the clutch member 70 on the shaft 44 and thus determine the direction of rotation of the presser member 14 over the bed 10. It will thus be clear that the lever 4O is a controlling lever for the power means which causes reciprocation of the presser member toward and from the Work supporting bed and also for the power means which causes movement of the presser member into and out of selective operative positions over'the bed. In addition the forward part of the lever 40 has another motion, that of axial rotation, provision being made for such movement as indicated in dotted lines in Fig. 1 of the drawings, wherein it will be observed that the for ward end 172 of the rear portion 1'? 4 of the lever 40 is provided with av socket in which is receivable the rear end 176' of the forward slightly away from the front of the machine during a pressure applying operation for reasons that Will be polnted out later. As

shown the bearing has arms 230 (Fig. 1), one on each side extending rearwardly in spaced relation and providing a support for the said bearing, the said arms being mounted on the upper end of the frame 12 by means of bolts 232 extending through openings in the arms 230 which are slightly larger than the bolts so as to provide for slight relative movement between the arms and thebolts in a direction from front to rear of the machine. Extending through the arms 280 in a direction at right angles to the bolts 232 are other bolts 23 1 which engage with the upright bolts 232 for the purpose of adjusting the bearing 20 laterally so as to position the post 16 accurately with reference to the pair of anti-friction devices. At the rear end of the arms 230 are bolts 236, one for each arm which secures the arm to the frame of the machine but permits slight movement of the arm and thus of the bearing 20, this movement being largely a movement of adjustment un der the action of the bolts 238 in the downward extensions 240' of the arms. Preferably the adjustment of the bearing 20 is such under the action of the adjusting members 238 that the post 16 is held in substantially vertical alignment within the bearings 18 and 20. However, as the fit of the post within the bearings cannot be tight but must allow for a certain amount of movement, the upper bearing 20 is mounted as'described to yield during a pressure applying operation so that the entire lateral pressure at the upper end of the post is absorbed by the anti-friction devices.

lVithin the bearing 20 there is provided an anti-friction device comprising a collar 2&2 supported by the member 24 1 which is bolted to the upper end of the post 16. Surrounding the collar 242 is a ring memher 2516 supported by the bearing 20 and providing, in conjunction with the collar 2 12, raceways for the anti-friction balls 248. As shown, particularly in Fig. 5, the upper end of the shaft 26 is reduced to support a collar 25-1 which in turn supports one memher 256 of a raceway for the anti-friction balls 258, a plate 260 serving to complete the raceway for the anti-friction rolls. Above the member 24:4 which is bolted to the upper end-of the post 16 there is located a nut 262 which is screw-threaded on the upper end of the shaft 26 and also pinned thereto. The construction just described provides a connection between the upper end of the shaft 26 and the upper end of the post 16 such that upon reciprocation of the shaft 26, the post is also reciprocated, the connection being such moreover that the post may rotate with respect to the shaft so that the presser member may move laterally over the work supporting bed while the shaft 26 remains stationary.

In the operation of the machine the sheet material which is to be cut is placed upon the work supporting bed 10, the presser member at the time being displaced so as to uncover the bed. lVhen a die has been properly positioned on the work the presser member 14 is caused to move into place above the die by proper manipulation of the lever a0. It will be understood that the lever 10 is moved laterally in the direction it is de sired that the presser member should move and when the presser member has reached a proper position above the die pressure on the lever is discontinued so that the power means is no longer operative to move the presser member, whereupon the presser member stops practically instantly in the selected operative position. In order words, upon disconnection of the power means for moving the presser member the latter does not continue to move under its momentum as in prior constructions but is held in the selective operative positions through the locking action of the worm 124 and worm gear 126 as fully set forth in the foregoing description. As soon as the presser member has reached operative position above the die the lever 40 is depressed, thus tripping the clutch on the main shaft 28 and initiating apressure applying operation by which the die is forced through the work. At'the completion of a cutting operation the lever 10 is moved in one direction or the other laterally of the bed to uncover the die and as muchof the work as it is desired to inspect previous to repositioning the die. Should it be desired to move the presse'r member by hand the forward part of the starting lever 40 is rotated in the manner described to cause a disconnection of the worm and worm gear from the presser member and hence the latter may be easily moved directly by the hand of the operator. This may be a desirable method of moving the presser member when sheet material uniform in its essential characteristics is being opera-ted upon, in which case the die or dies may be placed successively in close relation so that the presser member is moved but a shortdistance between cutting operations. If, however, sheet material such as leather, either skins or hides, is being operated upon the dies must be located after careful inspection of the work and according to a plan which must be carefully thought out and which varies for each skin or hide being out. In work of this'lrind the presser member is moved through relatively greater distances than is the case in cutting operations on other sheet material, such as fabrics, and hence the power means for moving the presser member is most advanta- -geoi1s an'dL addSIgreatly to the '"e'fliciency of both the operator-and the machine. -Because of the strong construction of the presser #member 'and the novel arrangement of its bearings, the presser member is inani- 'tained constantly with itspressureapplying face in parallel relation to the bed and hence cu'tting:operationson the sheet material are "characterizedby clean and perfect butting without i'njury"tothe dies and with- 'the minimumbt' wear on either dies or cutitngj; bed.-

l-laving thus described the invention, What is claimed as new and desi red to be securedw by Letters Patent of the United States is L 1. In al'machine ro'i the class-described, a Work supporting bed and a ipressermember rel a-tively movabl :Ltoward andfrom each other in pressure applying operations, a and a post 01m supporting v the presserimember for swinging mox eme"nt laterally over i the.

bed, l thesaid post being" integral with the presser member and having trunnions imounted-iin bearings n the iframe of the machine.

In a machine of the -class tlescribetL-a wo'rlc supporting bed and presser member rel atively movable toyvard bnd from each other in pressure- ;applying' operations, said presser member 'ha'ving -trunnions integral "th'ereWith f0r mounting the presser member :in bea'rings on the frame ot the machine.

3. In a machine of the elassdescr'ibed, a Work supporting bed and a i presser 1 member rel-atively recipro'cable toward and from each other in pressure applying'operations, "and a post for suppoi ting the I presser -member rotatably in -bearings o'n' the fra-me of the machine, said post and presser lnen'iber being in the' form of a single integral member.

' 4. In a machine ot 'the'classvdescribed, a 'w'orksupp'orting bed and presser member relatively reciprocable toward and from -e-a'ch'- other in pressure applying operations, a"-pest formed-integrally with the press-er =-1'n.ember lfor supporting the latter in the frame or L the machine, and amember connected -to the upper end of *the post "for reciprocatingthe presser member to effect pressure japplyingoperations. a

i 5; In a-machineof the-character described,

a Work supportingb'ed,"a presser member inova-ble'laterally overthet bed into and out of operativepositions 'WltlIIGSPGCt to Work on the bed and also movable toward and ttrom the bed in pressure applying operations, -a pcstfor supporting the presser mem- -ber,a'n d-an anti ifriction device between the upper end'of thepost and themachine frame and arranged to take the lateral thrustoi 1a WOIk supporting bed, a i'pre'sser member 1 the frame of the machine arran ed to take the lateral thrust of thepresser member during pressure applying operations, the construction and arrangement beingsuch 1' that the upper bea-ring moves to permit the 'antifriction devicetoabsorb-completely the described lateral thrust.

7.- In a machine 01. the character de- SGTlbbl, a Work supporting bed, a :presser niember- -movable laterally over the bed -into and out of bperative positions with respect 'to Work on the bed and also movable toward and from the *bed in pressure applying 0per-ations, a post" for supporting the presser inemberybearings for the-post on-the frame of the machine, the upper bearing -bei'ng m'ov ably mounted on v the i'ram'e, I and a -member slidably;attached to the upper end oi the post and proVided3- with anti-friction rolls vinterposed between said member and the frameot the; machine. a

""8. In a'machine of'the class described,'a presser memberand a Work supporting-bed relatively reciprocable toward andfrom laterally over the Work sup porting bed into and out or selected operatwe positions with respect to work on" the bed, power means for V r causing relativereciprocation ott thepresser member and'bed, 'a-nd controlling means for both the power means comprising lever *m'ovable inone 'pl'ane fol' causing operation oi" the first-mentioned -;=powermeans and movable in another plane for control-ling}; no

the other power means andmovable in an other ay-for disconnectingthe first-mentioned power ,nieans from i the pres-serniembe).

'9.- In a machine oii'the class described, a

presser member and a, Work supporting bed relativelyreciprocable toward andfrom each other in pressure applying operations, power 'means for moving the presser member c'omprising a Worm gear operative to hold the presser member in the position to which it a hasbeen moved'inthe rotation ofsaidrgear,

and a manually'controllable lever forcausing'the operation of thepower means and for disconnecting the presser member. I

10. In, aunachine of the class described, :1 presser member anda ork sup-porting'bed relatively reciprocable, toi vard and trom each other in pressure applying'operations,

:'each--0ther in pressureapplying operations, power means for moving-the presser-n'iernber poWer means from th presser member and a work supporting bed relatively reciprocable toward and from each other in pressure applying operations, power means for moving the presser member laterally over the work supporting bed into and out of selected operative positions with respect to work on the bed, power means for causing relative reciprocation oi": the presser member and bed, and controlling means for both the power means comprising a lever movable in one plane for causing operation of the first-mentioned power means and movable in another plane for controlling the power means and axially rotatable tor disconnecting the first-mentioned power means from the presser member.

12. In a machine of the class described, a

work supporting bed, a presser member movable toward and -from the work supporting bed and also laterally over the bed into and out of selected operative position, power means for moving the presser member laterally of the bed having parts constructed to hold the presser member in the position to which it has been moved by said power means, starting means for controlling the power means comprising a manually operable lever movable in the direction it is desired to move the presser member, and connections between the lever and the power means operable by the lever for disconnecting the presser member from said parts of the power means.

13. In a machine of the class described, a work supporting bed, a presser member movable toward and from the work supporting bed and also laterally over the bed into and out of selected operative position, power means forinoving the presser member laterally of the bed constructed to hold the presser member substantially in the position to which it is moved by operation of said power means, and starting means for controlling the power means comprising a manually operable lever movable in a hori Zontal plane to cause lateral movement of the presser member and also movable to cause disconnection of the power means froi the presser member so that the latter may be readily moved by hand.

14:. In a machine of the class described, a work supporting bed, a presser member movable toward and from the work supporting bed and also laterally over the bed into and'out of selected operative position, power means for moving the presser member laterally of the bed, starting means for controlling the application of power to the presser member comprising a manually op arable lever movable in opposite directions in the same plane for causing the power means toswing the presser member selectively in either direction over the bed and axially rotatable to cause disconnection of the power means from the presser member so that the latter may be readily moved by hand.

15. In a machine of the class described, a work supporting bed, a presser member movable toward and from the work supporting bed and also laterally over the bedv into and out of selected operative position, power means for moving thepresser member laterally of the bed comprising a cooperating worm and gear, a shaft upon which the gear is rotatably mounted, a member for connecting the gear to the shaft, connections from the shaft to the presser member for moving the latter in either direction over the bed, starting means for controlling the application of the power means to the presser member comprising a manually operable lever movable to control the power means and also to cause disconnection of the said gear from the shaft whereby the power means is disconnected from the presser member and the latter may be readily moved over the bed by hand.

16. In a machine of the class described,

a work supporting bed, a presser member movable toward and from the work supporting bed and also laterally over the bed into and out of selected operative position, power means for moving the presser mem ber laterally of the bed comprising co0p erating worm and gear members, a shaft to which the gear may be operatively connected, and a cable connection between the shaft and the presser member arranged to permit of lost motion between the shaft and the presser member, the construction and arrangement being such that the presser member may be moved to selected position and held in that position through the normal locking operation of the worm and gear.

17. In a machine of the class described, a work supporting bed, a presser member movable laterally over the bed into and out of selected operative position, power means for moving the presser member lat-' erally of the bed, starting means for controlling the power means comprising a manually operable lever movable in the direction it is desired to move the presser member, and connections between the lever and the power means; operable upon axial rotation of the lever for disconnecting the power means from the presser member.

18. In a machine of the class described, a work supporting bed, apresser member movable laterally over the bed into and out of selected operative position, power Hill means for moving the presser n iember laterally of the bed, and starting means for controlling the power means comprising a manually operable lever rotatable axially to cause disconnection of the powernreans' from the presser member sothat the latter maybe readily moved by hand.

19. In a machine of the class described, a work supporting bed, and a presser member relatively movable toward and from each other inpressure applying operations, the presscr member being movable' later-' ally over the bed into and out ofsele'c'ted operative position,- power means for movingthe presser member laterally of the bed, starting means for controlling the application of power to the presserinem'ber comprising a manually operable lever movable in "opposite. directions in the same plane for causing the power means to swing} the presser member selectively in either direction over the bed and movable"otherwise to'cause disconnectionol the power means tromthe p-resser member so that the latter may be readily moved by hand. i

20. In a machineoithe class described, a work supporting bed and a presser'rnember, relatively movable toward and from each other in pressure applying operations, the presser member being; movable laterally over the bed into and out of selected operative position, power means for moving the presser member laterally of the bed comprising; a co-operatin gworm and gear operatively connected to the presser mem her for moving thetlatter in either direction over the bed, starting means for con trolling the application of thepower'means to the presser member comprising a'marnrr' ally operable lever movable to control the power means and also to cause disconnection of the worm and gear from the presser member so that the latter may be readily moved over the bed by hand. 1

. 21. In a machine of the class described, a work supporting, bed, a presser member-movable laterally over the bed into and outot selected operative position, power means for moving the presser m-ember laterally of the bed comprising compo-rating worm and gear members whichoperate to prevent movement of the resser member independently of the power means, and a yielding connection be-' tween the Worm and gear members and the presser member, the construction and arrangement being such that the presser mem ber may be moved to selected position and held in that position through the normal locking operationoi the Worm and ,gear.

22. In a machine of the character described, a work supporting bed, a presser member movable laterally over the bed into and out of operative positions with respect to work on the bed and also movable toward and from the bed in pressure applying'opand anti-friction means between the needle? erations, post for supporting the'presser inem'ben a bearing; for the lower end of the post, and a movable bearing for the upper end of the post designed to hold the post normally in vertical position and movable during a pressure applying operation so that the lateral thrust of the presser member may be absorbed by the frame of the machine.

23. In a machine of the character de scribed, :a work supporting bed; aupresser' member movable laterally over the bed into and out of operative positions withrespectto work onthe bed and also movable toward 7 and lrom'the-bed'in pressure applying operations, a post for supporting; the presser:

post, a movable bearing for the-upper end of the post, and a second bearing for the post at the upper end thereof fixed against move-j merit in a directionaway from the presser' member. 7

25. In a machine of the character def scribed, a .ivork' supporting bed, a-presser member movable. laterally over the bed into and out of operative positions with. respect to work on the'bed and also movable toward and from the bed in pressure applying operations, a post for supporting the presser member, a bearing for the lower "end of the post, a movable bearing for tliegupper end 01"" the post, a second bearing for thevup'per end of the post fined against movement in a direction away from the presser member, post and the fixed bearing.

26. In a machine of the character demember movable laterally over the bed into and out of operative positions with respect to 'Workon the bed and also movable toward scribed,-a work supporting bed, a presser member movable late-rally over the bed into and out of operative positions with respect to work on the bed and also movable toward loo scribed, a work supporting bed, presserf and from the bed in pressure applying oppost during vertical reciprocation thereof,

erations, a post for supporting the presser and anti-friction means in the last named member, a bearing for the lower end of the bearing.

post, a movable bearing for the upper end In testimony whereof I have signed my 5 of the post designed for rotata-bly supporting name to this specification.

the post, a second bearing for supporting the ALBERT E. HUDSON.

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