US1445744A - Constant-pressure press - Google Patents

Description

Feb. 20, 1923. 11,445,744. vF. A. BRACKETT.

CONSTANT PRESSURE PRESS. FILED JAN. 3. 1920.

5 SHEETS- SHEET l- Feb. 2@, 1923.

1,445,744. F. A. BRACKETT.

CONSTANT PRESSUREPRESS. FILED' JAN. 3. 1920.

5 HEETS-SHEET 2- F. A. BRACKETT. I I CONSTANT PRESSURE PRESS.

Feb. 2U, 1923.

s SHEETPSQEET a;

FILED JAN. 3. 1920 4 Feb. 29, 19236 F. A. BRAC-KETT. cowsmm PRESSURE PRESS.

FILED JAN. 3, 1920 I 5 SHEET8-SHEET 4.

Feb. 2m, 1923 F. A. BRACKETT.

powsmm PRESSURE PRESS. v

5 SHEETS-$HEET 5- FILED IAN. 3.1920.

rnann a. panorama, or maucnnsrnn, mew rrerrrsrrrnn, assreuon "ro w. n.

MoELWAIN: CQILVIPANY, F BGSTON,

arassnennsnrrs.

consrnnr-rnnssunn rnnss.

application filed January 3, 1920. Serial No M9390.

i I Y} (ll/I whom am concern:

he it known that l, FRANK A. Bnacnnr'r,

la citizen or the United States, residingfat V lrlanchester, inthe county oi Hlllsborough and setter Newl'clampshire, have invented new and useful lmproyements in a Con stant Pressure'Press, ot which the following a specification; p p

It is the'purpose oi this invention to furnish a machine for pressing a collection or pile of articles, at the same time providing means by which other articles may be applied to the pile or collection without requiring or occasioning any. substantialslackening of the pressure. 1

Une of the uses "or which such a machine isparticularly des1gned and adapted 1s that of: holding under. pressure cemented and doubled shoe soles, that is, soles. which are made of two or more layers adhesively united to 'ether, although this statement is not intended and is not to be construed: as

in any sorta limitation ofthe utility of the invention or of the scope for. which I claim protection for the same; but, explaining. the nature of the invent on by reference to time particular use as a concrete instance, I would that, it is important that pressure should be applied to the doubled layers as soon as possible after they have been cemented and laid together, that the pressure should be continued without substantial intermission until the adhesive has set or dried enough tobe secure, and that economical operation requires that a large number of soles or other articles operated upon should be held under pressure at the same time in the same machine. The practice generally followed i in shoe -factories in making doubled soles is to cement and assemble together theconstituent layers of a considerable number of such solesbei'ore any are put under pressure, that is, an operator will cement and double a number oi soles in succession llllllll he has accumulated a pile, when he will place the pllein the press, or put 1t in condition to be carried away and pressed. This is the most economical procedure heretofore devised for this sort of work, but it has cert ain incidental disadvantages, among which i this: that, while the soles first. cemented are awaiting the accumulation of a. pile largeenoun'h to be handled, the cement corn- .Inences to dry, and this partial drying makes it impossible to obtain a perfect bond when the drying afterwards continues under 'lo retard the settingofthe cen'essure. ment in this manner, the practicehas obtained or making the cement excessively thick and taclry, so that it will dry only slowly, but this results in the use of much more cement than is actually needed for the ultimate purpose oi ei'lecting proper adhesion, and also requires more time after er the present invention, and, together with all modifications in structure and use which in principle and inthe essential character of function andresult embody the invention, isthe subject for which I claim protection, and is hereinafter recited in the appended claims.

The machine which I have chosen to illustrate and describe in detail in this specificationtlor explanation, is a press particularly designed for the special purpose of putting and holding cemented anddoubled shoe soles under pressure, wherefore inthis descrip tion I shall generally refer to the invention as a machine for that purpose, and to the Work operated on as shoe soles, but with out intending or implying any limitation in the scope-ct the protection herein claimed. Referring now to the drawings:

Figure 1 shows a side elevation of the specific sole press above referred to.

Figure 2 is a front elevation of the press. Figures and 4t show in side elevation a detail of the machine, in two respectively different positions; this detail beingan indicator, to give warning when the pile of soles has been builtup to a predetermined heigl'it.

Figure 5 is a vertical section on line 5-5 of Figure Figure 6 is a front elevation of the indicator referred to.

Figure 7 is a sectional plan view of the press, representing parts below the line 77 of Figures 1 and 2.

Figure 8 is a longitudinal section taken on the line.88 of Figure 7.

Figure 9'is a cross section taken on line 9-9 of Figure 8.

Figure 10 is a front elevation of a detail.

Figures 11 and 12 are fragmentary views showing the holder for the pile of soles, with the pile thereon, and an illustration of the means provided for securing the pile to maintain the pressure after its removal from the press.

Figure 13 is a plan, on an enlarged scale. of the parts below theline 13-13 of Figures 1 and 2.

Figure 14 is a vertical longitudinal sec- .tion of the mechanismshown in Figure 13,

being taken on the line 1l14 of said figure.

Figure 15 is a detail of the mechanism shown in Fig. 14-.

Figure 16 is a cross section, enlarged, of a starting and stopping means forming part of the particular combination illustrated in Figure 15.

Figures 17 and 18 are views similar to Figures 15 and 16, respectively, of the same stop motion in a different position.

Figure 19 is alongitudinal section of the clutch which forms a part of this mechanism.

Like reference characters indicate the same parts inall of the figures.

Describing now the machine thus illustrated, 21 represents the base, from which rise two bars 22 and 23, and two rods 24 and 25, all supporting and securing a head 26. The base, bars, rods, and head thus described provide a rigid frame, whereon the movable parts are supported. Said bars are likewise guides, whereon a carriage 27 is adapted to slideup and down, said carriage having shoes,28 and 29, which bear against the bars. The carriage has also an arm 30, projecting rearward, to which is connected a rope or a chain 31, passing over guide pulleys 32, and suspend ing a counterbalance weight The pulleys are supported by a bracket 3 L on the head. The bars 22 and 23 are provided with teeth 35, and in mesh with these teeth are pinions 36 and 37, aflixed to a shaft rotatable in bearings carried by the rarriage 27. The shaft 38 also carries a brake drum 39, which is surrounded by a brake bandlO. This brake band may be a flexible or springy steel strip, having a facing of leather or equivalent friction-causing material, as is common in brake constructions, and one end of it is connected to a stud-l1. mounted on the, carriage, as shown in Figure 1. The carriage also supports a second stud e2, on which there is pivoted lever 43, having as its short arm an adjustable screw 14- in a lug at one side of the lever. while its long arm is provided with a cum or wiper surface 15, adapted to be engaged by a finger 46 on. the locking piece 17, which is pivoted upon the shai' 3 and has an operating handle e28. The o .i posite end of the brake band from that which is at tached to the stud ll as above described, carries a hug 49.. which is engaged by the screw A or short arm of lever 13. Thus. when the lock device placed as shown in Figure 1, where the finger -16 has pressed against and ridden along the cam surface 4:5 up to the stop shoulder at the end of that surface. the brake band is lightened about the brake drum. and the loci-L is recured so as to maintain this condition. b being across the dead i-enter. or, if desired. b a slight depression in the cam surface which it enters.

By this means resistance is opposed in rotation of shaft 33, and therefore to descent of the carriage 27. 'liis carriaae is provided to support the soles being pressed. and the resistance to its movement :1 El'orded by the braiie determines the ii'iiensil ol' the pressure which can be applied by the press ing means about to he described. 'lhis resistance may be relaxed easily enough by turning the locking device in countercloek-wise rotation with respect to Figure 1 (in other words, by pulling; the handle to forward). The connterbalance weight acts to return the carriage to its raised position after a pile of soles has been removed from it and the brake has been released. where by to relieve the operator oi unnecessary labor.

For holding the soles being pressed, there are provided. a number of removable luii'ionl plates or holders. of which one is shown in Figures 7 to 12. Each of these holders con:- prises a base 50. conveniently made as a casiing, and having sockets Til at suitable locations, and a sup mrting plate mi. The latter is made of flat stock. with a suflicientlv smooth upper surface. and having stillness enough to retain its flat condition lander the conditions of use or abuse which it may meet: and it rests upon spriinrs 5 coniiu ined in the ockets 51, there being enough of these spring): and sockets. properly till'tlllilttl, 1o give the plate a stable and resilient support. llhen this holder is placed on the carriage 27, as shown in Figures 3 and 9. the plalc 52 provides the actual work-s1ipport'ine' element or sin-few of the press. ll: is removsole with the stack of soles at the end of one cycle of the machine, making way for subsiitution of a similar holder. The holder is equipped with means for retaining the supported accumulation of soles under pri sure. even after removal from the press. such means being, in the construction shown, 0

Hil

tions being in such sequence that pressure applied by the main presser to the whole accumulation or work pieces before, or at least not after, removal of the secondary pressers from operative position, and that the latter more aside quickly thereafter to clear the side edges of the newly added work piece a. Continuation of the downward movement ot the main presser first compresses the springs or the holder, and then forces the entire worh support downward against the resistance offered by the brake 20. whereby iiredeterniined degree of pressure is applied to the work piece. Thereafter, when the worlr piece last put in place has passed across the path of the secondary presse'rs, the lat-fer are moved inward to their previous positions. Finally with the completion oi. the cycle (which involves one complete rotation 01 the cam alt 72). the main presser is raised clear oi the last placed work piece, but the latter and all those beneath second pressers.

In this a non, the resilient work holder perilorirzs an important function, because it causes delav in the downward displacement of the car iage until the springs 53 have been compressed a certain amount; whereby, first, the compression of said springs allows the edge of the work piece to be carried tar enough below the secondary pressers to avoid interference with the latter; and then, their resilience causes the pile to be lifted, when the main prcsser rises, and held against the secondary pressers with the torce due to the initial compression of the springs, which may be nearly as great as that applied by the main press 1. Thus, the springs 53 provided for such play or relative motion between the carriage and the work supporting element thereof (plate 52), under substantially constant pressure, as is needed to avoid interference between the piece last added to the pile and the second ary pressers. Such play or movement need not be great, but must be enough to compensate for possible bending or warpeo condition of the work piece.

I hiweprovided a gage device trally locating the work pieces as they are successively placed upon the pile, so that they will clear the secondary preesers prop erly and also will be properly pressed upon by the latter, and to insure that the successive work pieces will be cm'rectly enough aligned in the pile to avoid building up a for censlanting or crooked pile, a defect which might cause collapse in the case of worl: pieces, such as shoe soles, which have cornparatively slight width proportion to the height to which the pile is built. This gage is shown in Figm'es '2", 8. 9, and 10, and it comprises an end stop 90, and resilient centering arms 91, 92. Said end stop is se- .o are retained under pressure by the cured to a block 98. which slides in a guide wa 94 in the under side. ol a plate 3):), and the plate has a dovetail rib 9?. fitting a guidcwav in a fixed lug bk on a par! of the machine head 26. locking pin 99. s n-lugpressed and manually rcle: sable (as shown in Figure e). provided for locking the entire in a manner permitting it to be removed and others to be sul'istiluted. Al tached to the plate 9:) are two pivot-piur-t 100. on each of which is mounted a hub lo}. having an arm 102. and each of said arms carryig a pin 10?. which project into a transverse groove L'll 'l on the under side of the slide block: 93. as shown best in Figures 1" and 8. The side gaging arms Ell. and iii are each secured to one of the two hubs Hll. A. v. r piece. when inserted into the pres is :n( d onward by the operator until its end passes bchrceu the arms 9 and 92, and brings up against the stop 90. It the side arms should be spread wider apart than the width of the piece, the latter is Further moved. d ancing the stop 90 with it until stopped b' the side gages striking the sides of the work i, llIUVQIl'lClll of the block 93. of course, swings the side gages by the pin and slot connection just described. llv this means it is insured that all soles applied to the pile are approximately centrally aligned thereon.

This procedure is repeated whenever the workman or attendant has applied a coating of cement to a sole and laid another sole. (or a tap or doubler of whatever size. iuaterial or thickness.) against this cemented surtace,-that is. every few sccouds.aud at each operation a sole is :uldcd to the stack and put under pressure witluiut *astc of time and witlmut relaxing the pressure already exerted on the stack. It makes no difference what the thickness of the sole or other work piece may be. or whether such work pieces are applied singly, orlwo or more at a time. except that it is not possible to apply a number of worl: pieces having a combined greater thickness than the space between the main pr se when raised. and the adjacent operative parts of the second ary pressevs. lVhatcvcr may be the thickness of the worl: piece capable of being inserted. the main presscr applies the same pressure, and moves the work support and pieces thereon far enough to clear the secondary pressers.

l l hen a picdetcrnlinml number of the soles have been thus built into a stack or pile (that is. when the pile has been built to prescribed height). a signal is automaticall given to the operator. warning him that it is now time to remove the pile. Such signal is given by a visible indicator 105. conveniently in the form oi a metal flag or target. supported at the front side oi the head so. where it is conspicuously before the eyes of to pull the link 110 slot 112, which embraces andv is the operator, on a rock shaft 106. The latter carries an erui 1)? close to the left-hand side oi? the head, to which is pivoteda latch 108, and to the latch is connected a spring 109, which is also connectedwith a link 110 pivoted to the latch at 111. and having: a

The

fixed pin 113.

e u .o an approach to coincidence with the latch. or. in other words, to diminish the angle between thelinlr and the latch, and therefore to tend to bring; the

device into the position shown in lz'linure 4e,

and to hold it in that position. The lint: 11.0 prevents the latch from hanging); down loosoand inoperative from the arm 10'? A.

spring 1141 (Figure 6) surrounds the rock.

is adapted to slide endwise, and it is norinally raised by a stirring); 11 pressing againstthe lower guide 117 and against a collar 119 fixedto the rod, which collar has,

an arm,120,.passinpf through a slot in the bar 22 beneath the sl de 27, as SllOWILllllTlQ- ure 5. This arm, coming 1n contact with the upper end of the slot, limits the upward movement ot the rod. and, when therod in its uppermostposition, a toe 02..

shoulder 121 011 its upper end overlies the latch 108, hold ng the target n the 'llpllgllt position shown in Figures 1, 3, and 6.

Now, whenthe carriage in its descent arrives at the arm120, it pushes the rod 116 downward until the shoulder has, displaced and passed from over the end of the latch 108, as shown by dotted lines in [Figure 3. At this t me the arm 107 and rocks turn relatively to the signal 105, the latter being. rest ained from turning by the adjacent stationary head, and spring 109 being stretched; and, upon the shoulder passing off from the latch, the spring; causes this arm to be suddenlyraised and permits the targetto fall forward, linlr 110 then sliding along the fixed pin 115, and being caused by the spring; 109 to. remain in that position. The operator is thus notified that a large enough number or soles has been placed on] the pile, andhe then stops the machine .in the position shown inFigure 2, where Q the holding presses are moved aside to clear the pile, and the mam presser is pressed the machine, the operatorfirst lays a rigid down on top of the pile. This is not the normalstopping position of the machine,

but is one taken to allow theflbinder 58 to be passed around the pile.

It should be noted, however, that, before thusjstopping retainer plate 122 11) top of the meat/wt uided on a, .irt .ot the spring 1S at't 1.06

pile, this plate, being used for the purpose of protecting the soles from injuryby the binder chain and of distributing the pressure of the hinder over substantially the whole area or thepile, instead. of concentrating such pressure at the line where the 'chain passes over it. That is, a stiff retainer plate. is used for the purposes indicated when the work pieces are, like soles, more or less soft and flexible, or are liable to be injured by a tightly drawn binder.

The machine having been stopped in the position indicated, the. binder chain 53 with winch each holder base is equipped, is

passed over the pileand drawn tight, and. the nearest link 1s engaged with the hook 55. .At this time the pivoted section 57 of the .presser plate is raised clear oft-he pile. as shown 1n Figures 11 and 12, 1n order to permit thus passing the chain around substantially the middle of the pile. It will be seen, therefore, that the pivoted section of i the presser is a means for enabling this tliingto be done, and also for applying pressure over that same part of the .plle. Any slack existing in the chain may be taken up by driving wedges between it and any part ofthe pile. Thenthe brake 410 is relaxed and the carriage lowered to clearthe presser plate, and the assembled pile, including the holder, is removed and set aside, to remain under compression until the adhesive has suthciently set. Of course, the chain or hinder maintains the pressure which was previously mposed by the presser, and the spring compression of the holder or base causes the pressure to continue without substantial reduction, even though some slack should have been left in the chain before relieving the pile fromthe presser,

The carriage is then raised. and the brake set, the pressingmeans brought back to normal position, and. the operation resumed to build and press another pile of soles.

The means for stopping the machine at will, either in the normal position where the secondary or retaining); pressers bear on the work and the main presser is raised, or in the final position where the secondary pressers are relieved but the main presser bears on the pile, is an important feature ofthe machine,'which I desire to protect in the broadest possible scope. To explain this feature, I will direct attention particularly to Figures 13 to 19. The main shaft 73 is drivenby a pulley 7 6, as already mentioned,

and this pulley is loosely mounted on the shaft, but is adapted to be coupled thereto by a rollerclutch, consisting of rollers 123 interposed betweenthesleeve124, which is keyedjtothe shaft, and the hub 125 of the pulley. The actual contact between the rollers and the pulley hub is made through a bushing or liner 1%, fiXed within thepulley hub, and provided simply for the pur- ,is fixed in position by being mounted on a pose of furnishing a sufficiently small, hard "and wear-resisting surface to co-operate with the rollers. The latter are positioned and shifted so as to effect coupling and uncoupling by a cage 127, made as asleeve loosely contained in the annular space between the pulley hub and the shaft sleeve 124, and in which there are slots, occupied by the rollers, ,as shown clearly in Figures 16 and 18. On this cage there is a flange 128,,abutting against ahead 129 secured to the shaft, and in the face of said flange is a recess 130, containing a spring 131, and into which projects a'lug or stud 132 from the head 129, as shown by dot-ted lines in Figures 16, 18 and 19. The spring, by exerting, pressure between the stud 132 and the remote end of the recess 131, tends to shift the cage into the position shown in Figure 16, wherein the rollers are wedged intoclutching contact with the shaft sleeve ,and the pulley hub. On the exterior of the flange 128 is a stop shoulder 133, which is arrested bva stop finger 134 to uncouple the clutch and stop the machine.

' The stop finger 134 is pivoted on. an arm 135 secured to a rock shaft 136, to which also is secured the control treadle or lever 89, previously mentioned. =Connection between thefinger134 and arm 135 is made by a pivot pin 137, which permits the finger to swing backward, that is, to the left with respect to Figures 14, 15 and .17 while on the finger and arm are complemental abutment'shoulders, preventing the finger from swinging forward when in aliginnent with the arm, and a spring'138 is connected to the finger and arm, being arranged and act ing to hold the shoulders in contact. A link 139, connected to the finger by a pivot at one si'deof the coupling pivot 137, is adapted to slide endwise with respect to a stud 141, and to be limited as to its range 01 movement by an abutment 142. The stud conveniently accessible part of the stationary frame, and preferably the link is slotted to embrace the stud, and so to be en gaged with it securely enough. The abutnt 142 is conveniently provided by a screw, threaded into the rear end of the link, and adapted to be adjusted toward and awavfrom the stud, as shown by dotted l nes m Flgures 15 and 17.

Qn the shaft 72 is secured a cam 143, ,WhlCl'l controls an arm 144 on the rock shaft 136. This arm may be a part of the ,treadle lever 89, as here shown, or it may be otherwise mounted on the rock shaft.

Arm 144 carries "a roll 145, which bears on the rim of cam 143, the latter having its high part,t-hat is, the part of its circumference more remote from the cen ten-extending throughmore than a semicircumference. Actually, as represented here, the high part extends from the point 9 around in. the direction opposite to the arrow as far as the point 15,, but it is not necessary that its extent be so great.

Figure 17 shows the condition when the machine is at rest, the clutch controller being then arrested by the end of the stop finger 134, and the roll 145 being then against the low part of the cam. there being a spring 146 connected to the lever Si) and to a fixed part- 147 of the framing to hold these parts in the positions described. and to tend coi'istantly to return them to these positions when displaced. Now. it the treadle lever is moved downward, the stop linger 134 is disengaged from the stop shoulder 1233, allowing the clutch to become connccted. Immediately then the shal't 73 is set in rotation, and the cam 14-3 is also rotated by the geared connection between the two shafts, whereby the high part of the cam is placed beside the stud on arm 144. holding the arms displm-cd in the positions shown in Figure 15, and making it unnecessary for the operator to continue to apply prcssure to the treadlc lever. Spring 33 is powerful enough to prevent the toggle. which is provided by the finger 134 and arm 135, from breaking at the knuckle 137. whereby this toggle device moves as a unit clear of the shoulder 133 and. until arrested by the abutment 142 bringing up against the stud 141. llhereupon the machine continues to run until the low part oi the cam beyond the point I), arriving beside roll 145. allows the stop finger to arrest the stop shoulder 133. As the shafts 73 and 72 are geared together in a two to one ratio. the shaft 73 makes two rotations and shaft 752 a complete rotation before being thus stopped. This carries out one complete opio; cycle 01' the pressing means.

. to stop the machine in the cycle as already explained. when the time comes for binding the bundle oi soles. and in order to stop it then. the treadlc is still further depressed, or, in other words. the treadlc lover is moved still further in the first direction. and thereby the arm 135 is moved beyond the point in which it is arrested by the link 135). Force being then applied to the treadle great enough to overcome the spring 133, the tow gle device is bent at the knuckle, and the stop finger is turned around pivot 140 as fulcrum. until its tip is brought into the path of stop shoulder 133. and thereby the shaft 73 is allowed to turn through only one complete rotation. and the machine is stopped when only half of the cycle has been completed. 0t course. the cams for controlling the prcssers are so constructml and timed that the secondary prcssers are disengaged and the main prcsscr is engaged with the arm. at this time. Thus, by moving llll llii

v ew/4es i W the control treadle to a part only ohits luli range oi. uioven'ient, the machine niayhe caused. to make a complete cycle Wll'llfi-B hj/ movin it through the Whole o l range the 'lllhClliilGlllpliQS only a partial. rotation; (ll? course. it is understood that the action o l spring 130 on the dutchis rapid that. the

shoulder 133 carried the endot the stop linger immediately the latter has been displaced from the shoulder in the full,

movement of the. treedlep Where. an, even though this movement he carried out to the end WliillOlll} interruptiong. the stop fino'er will not he returned against the clutch controller in a pos ition to obstruct that shoulder. Fiiirmre 14 shows theparts inthe position Wherethe m hine is stopped in mid-cycle... i it y 7. Having now dercrihed and illustrated. in sutliciently t'ull (lfillilli to onahlegothers skilled in the art l? and usethesmm, a satisfactory oper re machine. (ll'ilih'u'fljfllllfll my invention, I would state that I do not limit the protection which I claim an details ot that particularmachine. h ll F vi 1 my inventiohthe essential or J machine embodied in any consti ever superficially diverse I from that [here shown, which accomplishes essentially the same results in substantially the "In the operation of the machine,

holder for tliepile ot soles, with its springs pressed surface plate, serves a most impor- 1 tant fnnctionin that, after the pile .hasheen depressed clear of? the secondarypressers, it forces the pile: against-such secondary pressere with suhstantiallf." wundiminished pressure; and, further that being under resilient compression when the hinder is passed around the pile; it maintains pressrure in the soles after their removal from the machine.

Vi liere aer in the oren'oino' d tire position, it have done so for the purpose only otclear and concise description oi this particluar emhodiinentot' the invention, and

mehted soles,to inention only one out its to possible uses, el'l'ects large economies in ha-ring oi time to the workman, in the quan- =1 tityot productturned outlay the Workman, w. ahd in the quantity 0 t adhes ehsed. Faince the cemented article is 'i-nt undcr pressure ho as soon as itis cemented; a thin, quichdrystru(':l'nres in which the inven embodied or all the modes oi consisting of e. pivoted arm. and a pressin ,JSJW movable toward. and away from said 7 v riptioh haveused terms ii'ulicating direction or rel-a pjrcssure a inn adhesi re may he used, and in, which only I as niuohv oi the adhesive principle ilhafl he included as is necessary to make the bond; and it niuy he applied to the worl: pieces in a thin l er. Without any excess. '7

i-la'vii now explained the principles of my llll 'QflclOll. .aiul dcscrihed an lmdiincnt thereof in one sp cific machine although without llai'it ezopted to describe all I on may l; as use. l do claro that What l claim, an d desire to secure by Letters Patent s:

l. l rupressing machine for CEIMEIiK-Al arti cles con'iprising a support. a holder detachahl'y mounted on said support and adapted to receive it series o' such articles =ud anions for applying pressure to such so cles. said. holder having); resiliently mounticld under. the pressure applied to the articles. llln a pressing; machii'ie, a carriage, a ide a toothed element cxterulin along: the lde, a gear carried by the carriage mesh 11 0- with s1. ,h toothed element. a hrakeassociated with the grer-lr to oppose lllli'tlOilill resistance to rotation thereof and therehv to yieldingrly resist travel of the carria 'e. said carriage being adapted to support a 'es' oi vrticies. 8. In a pressing niachuie the oomhination with a presser and ineans for moving}; the

same hack and forth in a 'iven path, ol? :1

it. t A

secondary presse atone side of said path path, and means for so moving the secondary presser, comprising gzgear segment (3011-.

nected thereto and anoperatiu mentineshing with said sepjmont in. a. i'u'ess machine a, work holder adapted to hold a series of articles nndcr nd comprisir r a hate. u. Work-engaging; .p to, and SPYIUEQS connecto '1 plate and base and permitting .yieldin resisted movement Gil the 'lornier toward t latter. i r

5. In a press machine a worlr holder adapted to. hold a oi articles .under pressure and comp ising :1 base, a work on gaging; plate, springs onnecting; said plate and. base and permitting yieldingly resisted moven'lent oil the :iormer toward the latter, and means on said base tor attachment of a hinder passed ahout a pile oi? articles placed movement of the former toward the latter a lie-rile binder permanently attached to one side of said holder base and adapted to be passed over a pile of articles placed on the holder plate, and fastening means at the opposite side 01 the base for securing the binder when so placed.

7. In a press machine a work holder adapted to hold a series of articles under pressure and comprising a base. a worlocugaging plate. springs connecting said pi and base and permitting yieldingly resisvd movement of the former toward the l: a flexible binder permanently attached one of its ends to said base and adapted to be passed around a pile of articles bearing: against the plate. and means for sec-urin .16 binder so placed whereby to maintain the articles under pressure of the springs.

8. A press machine adapted to hold a pile of cemented articles under pressure and to apply pressure to articles successively added to the pile, comprising a work support. a back and forth moving presser for :1 vlyine pressure intermittently to articles placed in a series on said support, means for so moviuc: said presser, a retainer and means for open ating it intermittently to retain said articles under pressure when said presser is withdrawn, said presser and retainer being constructed to permit insertion between them of articles added to the pile. and centering means arranged to aline articles so added with those to which pressure has already been applied.

9. A press machine comprising a presser movable back andforth, a work support movable in the line of pressure application of: said presser. yielding means resisting movement of said work support, retaining means adapted to hold under pressure articles upon which said presser has previously been pressed, being constructed and located to provide a. space for the reception of addi tional articles when the presser is moved away from the work support, and centeriusr means flanking the space so provided adapted to aline the articles inserted in said space with those previously pressed upon.

10. A press machine comprising a prcsser movable back and forth, a work support movable in the line of pressure application of said presser, yielding means resisting: movement of said work support. retaining means adapted to hold under pressure articles upon which said presser has previously been pressed, being constructed and located to providea space for the reception oi additional articles when the presser is moved away from the work support, and centering means comprising a. stop at the back of such spaceadaptedto be struck by an article inserted into the space and being movable in the direction of insertion of such article. and side gaging arms at opposite sides of the space connected with and actuated by said stop to move toward the middle of the space centerir" means for aliniug; :"h art? with sad series comprising; sc a rated uagi'i an members. a stop located and will movable line between said gaging members. an lections between said stop and gracing? hers operable to more said members tormd each other when the stop s moved in our direction.

centering mechanism conuiris ur separated gaging members. a stop located and movable in a line between said llMHl l'l'. and connections between said stop and members arranged to shift the members op 'rJ1.'--itcly to one another when the stop is rooted.

l3. centering: mechanism couiprirhz r separated pivotally mounted pr cing; ur -t. stop movable in a line l'ietwecn said aruwv and actuation arms secured to said o apgiui'i arms p ectinp; respectively from the latter to the & op and havins: a, sliding: connection therewith. whereby when the stop is mo ed the gaging arms are likewise moved oppositely to one another.

14-. In a press machine having a suppo t inn frame, an adjustable centering? dvvicc consisting: ot a plate. a stop member Sll(ll]l ly mounted upon said plate. side gracing; arms pivoted to said plate. and connections between said stop member and paging arms. constructed to transmit simultaneous movement to the gaging arms from movement oi' the stop. sa plate having: means for detach able connection with the. machine 'lrouic.

In a press machine the combination with a frame, a presscr and work support mounted by said frame and being inovohlo one with respect to the other whc chv to apply pressure to a series of a ticles ituortcd between them. and centeriugr means mou ted upon the frame in a location to caus oliuoment with one another oi artic es stir-cos sively inserted between the prcssor and work support, said centering; means iucludi r side members adapted to embrace the iirrrtwl article and being); movable together and apart. a stop one .able by the iiuae tod article and connected to cllcct uioi'ctuout 1" lr. side members when so engaged. and a holder carrying said side members and stop and being demountably secured the frame to permit removal and substitution o l a dill'erent centering device.

1.6. In press machine the coiu iiuitiou of a holder adapted to support a pile o'l' press-ml articles. and a presser having); an e.\ endcd pressing suriacc to bear upon said articles. a part. of said presser being rctrvctihlc while the remainder of it overts pressure on the articles whereby to permit passing of a binder around the pile.

17. In a press machine the combiuatimi of 1 aholder adapted to support a pile of pressed articles, whereby to permit passing of a bmderaround the pile, said retractible part forming one end of the pressenand being turr ied back. c

1 18,111 a press machine a presser comprisa plunger, a press plate secured to the end of said plunger transversely thereof and having a pivoted end section adapted to be turned back toward the plunger, and a brace connected to the pivoted section detachably engageable with the plunger when the pivoted section'is extended in continuationoi the plate. I c

19. A machinetor pressing cenielnted arhin ed to the adjacent part whereby to be i ticles comprising a frame, a worksupportingqcarriage mounted to travel on said frame, a presser movable back and "forth toward said carriage substantially in the line ofniovement thereof, airiction brake device associated with said carriage and with the frame forresisting movement of the carriage and thereby causing pressure who sustained by the cemented articles from the presser and a signal arranged to be moved under control of the carriage when the latter has reached a g1ven point in its travel.

c 20. In a press machine ,a guide having a series of teeth, a carriage movable along said guide, a toothed wheel 1ournaled upon said carriage and meshing with the teeth of the guide, a brake drum connected to said wheel and rotatable thereby, and a brake shoe attached to the carriage and bearing upon said drum to resist movement of the carriage.

21.1n a press machine a guide having a series of teeth, a carriage movable along said guide, a toothed wheel journaled upon said carriage and meshing with the teeth of the guide, a brake drum connected to said Wheel and rotatable thereby, a brake shoe attached to the carriage and bearing upon said drum to resist movement of the carriage, and

means for setting and releasing said brake shoe also carried by the carriage.

22. In a press machine a guide having a series of teeth, a carriage movable along said guide, a toothed. wheel journaled upon said carriage and meshing with the teeth of the guide, a brake drum connected to said wheel and rotatable thereby, a brake shoe attached to the carriage and bearing upon said drum to resist movement of the carriage, said brake shoe being a flexible band embracingthe drum and anchored at one end upon the carriage, a lever pivoted to the carriage con- 1'1ected to the other end of said band and a manually operable lock device arranged to bear upon said lever and movable to apply erate said presser and retainer in alternation for respectively applying and retaining pressure upon Work abutting against the Work holder, of a starting "andstopping mechanism automatically efliective to stop the machine when the retainer is active and the presser is inactive, and means for causing said mechanism tostop the machine at a time when the presser active and the retainer is inactive.

24, A press machine comprising in combination a work holder, a presser movable toward and away from said work holder, a retainer movable into andout of contact with work pressed upon by the p'resser, means for operatingsaid presser and retainer in suchalternation that the retainer is engaged with the work 'whenthe presseris withdrawn, and the retainer ismoved away from the work when the presser is forced against it, a start and stop mechanism automatically operable to stop the machine after each cycle when the retainer is engaged with the Work and the presser Withdrawn, and means associated .withsaid mechanism for causingit to stop the machine at an intermediate point in the cycle when the presser is in contact I with the work and theretamer Withdrawn. 25. A press machine including pressing means, a stopping and starting mechanism adapted to operate said pressing means through a cycle and then stop, a controller movable to set said stopping and starting means in operation, and meansalso operable by said controller for stopping the machine at a point before the end of the cycle.

26. A press machine, including pressing means, a driver loosely mounted with resaid stop in position for causing uncoupling ot the clutch, a mechanism timed with the machine for holding the stop in the inopera tive position while the pressing means completes a cycle, and provisions for enabling movement of the controller to place the stop in the uncoupling position prior to the completion of the cycle.

27. A press machine comprising pressing means, a rotatable driver, a rotatable shaft, mechanism through which said shaft operates said pressing means,aclutch adapted to couple said driver to said shaft and to uncouple it, complemental stops for causing uncoupling of the clutch, one of said stops being carried bythe clutch and the othervbeing movable into and out of its path, a. controller associated with the last named stop for moving it out of the path of the first stop, means normally tending to return it into such path, an arrester driven with the shaft for holding the second step in the out position while the driven member makes a complete cycle, and means operable by the controller for shiftingthe second stop into the in position independently of the arrest'er. i

28; A press machine comprising a presser, a retainer, means for operating said presser and retainer in repeated alternation to press upon a pile of articles and to hold such pile in compressed condition while another article is added, thereto;-said means comprising a driven shaft, an independently rotatable driver, a clutch for connecting and disconnecting said driver respectively with and tromthe shaft, a stop abutment rotatable with the clutch adapted when arrested to eti'eet uncoupling thereof, a stop finger movable into: and out of the pat-h of said abutment for arresting and releasing the same, a controller connected to said finger movable in one direct-ion to displace the finger from the abutment, a. cam driven by saidsha-ft for holding said controller in the finger-displacing position, said. finger being jointed, and a fulcrum member arranged to act on said finger between its joint and the abutment when the controller is further moved in the same direction, whereby to bring, the finger into the path of the abutment as a result of such further movement.

29. A press machine designed for progressively adding separate articles, under pressure, to a pile of articles already under pressure, comprising a back and-iorth moving presser, a retainer displaceable transversely of the path of said presser into and out of position to bear on the compressed articles, mechanism for operating said presser and retainer in alternation to bring the retainer into action on the articles, when the presser is out of action, and vice versa. comprising a driven member, a driver, a clutch between the driver and driven member, and a clutch controller, having an abutment, rotatable with the driven member and adapted to be arrested for causing the discmincction oi the clutch, a jointed stop finger movable into and out of the path of said abutment, a controllcr connected with said fingerand operable to move it out of said path. when operated in one direction, and an arrester for that part of the finger between its joint and its engaging portion adapted to arrest and cause movement of said engaging portion into the path of the abutment with a further movement of the-controller in the same direction.

In testimony whereof I have atlixed my signature.

FRANK A. BRACKEUF.

(ill

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