US1397358A

US1397358A - Die-press

Info

Publication number: US1397358A
Application number: US363130A
Authority: US
Inventors: Wilhelm B Bronander
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-03-04
Filing date: 1920-03-04
Publication date: 1921-11-15
Anticipated expiration: 1938-11-15

Description

W. B. BRONANDER.

DIE PRESS.

APPLICATION FILED MAR. 1, I920.

I r 1 6 wi md 5 W H 3 Wm B & L

W. B. BRONANDEIL DiE PRESS. APPLICATION mu) MAR. 4, 1920.

Patented Nov. 15, 1921.

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14 2% elm, ,3. Brazzan'der W. B. BRONANDER.

DIE PRESS.

APPLICATION FILED MAR. 4, 1920.

Patented Nov. 15, 1921.

v 3 sHEETs-sHEI 3.

UNITED STATES B. BRONANDER, 0F KOKTCLAIR, NEW JERSEY.

DIE-PRESS.

Specification of Letters Patent.

Patented Nov. 15, 1921.

Application filed March 4, 1920. serial No. aeaiao.

To all toll omz'tmay camera:

Be it known that I. lvimrnmr B. BRONAN- mm, a citizen of the United States, and a resident of Montclair, Essex county, and State of New Jersey, have invented certain new and useful Improven cuts in a Die-Press, of which the following is a specification.

My present invention relates to die presses of the type such as are employed in the press ing of phonograph records. 1

These presses must be closed-under heavy pressure and this heavy pressure, to get the best results, should be applied somewhat gradually. This slow application of power usually results in cutting down the speed and hence the output of the machine.

One of the principal objects of my invention "is to combine in the one machine both the advantages of guick operation and theclosing force.

Other special objects and features of the invention will appear in the course of the following specification.

In the drawings accompanying and forming a part of this specification I have illustrated the invention embodied in one of its practical and preferred forms, but would have it understood that the same may be modified in various respects without departure from the true spirit and scope of the invention as definedtinthe appended claims.

Figure 1 in said drawings is an end viewv of the press with the parts in the final closed relation, the shaft being shown In section as taken on substantially the plane of 'line 1 1 of Fig. 2.

' Fig. 2 is a view of the front or left-hand side of the press shown in Fig. 1.

Figs. 3 and 4 are yertical sectional views as taken .on substantially the plane of line 3-3 of 2 and showing the press'elements in the partly closed and in the fully" open positions "respectively Fig. 5 is an enlarged sectional view of the timing mechanism, taken on substantially the plane of line 5-5 of Fig.,6.

Fig. 6 is a sectipnal view of the same as taken on substantially the plane of line 6-6 of Fig. 5.

In the illustration 10des1gnates the base or bed of the press and 1.1 the movable head or gate coiiperating therewith, the base being 14, which, as indicated more clearly in Fig.

4, may be connected at opposite ends at 15- and 16 with the two press parts so as to form resilient stops limiting the opening movement of the press.

The press illustrated is designed particularly for pressing phonograph records and the same is accordingly provided with cooperating matrix or die

members

17 and 18 between which the record is formed.

Special means for heating and cooling these die members is disclosed in the illustration in the form of a steam or heating fluid supply conduit 19 and a water or cooling two-way valve 21 having an operating handle 22 which is actuated by the two spaced

sto

23 and 24 carried by the press head, the fluid controlled by said valve passing through the piping 25 and the flexible tubing 26 and 27 to the upper and lower die members respectively.

The arrangement of the valve actuating mechanism is such that on the opening or lowering movement of the press head, the

upper trip 23 will engage the valve handle and rockthe same from the position shown in Fig. 3 to the position shown in Fig. 4,-so as to turn on the flow of steam or heating fluid. Hence, as the press is opened, the heating fluid is automatically admitted to the dies, so that when the press is ready to close the dies are hot and therefore in condition to operate on the material being molded.

fluid conduit 20 which are controlled by a uicldy closing the sure comprises a toggle made up of the two 7 levers 30 and 31 pivoted together at 32, the lower of these levers being pivoted or fulcrumed at 33in the base or frame 34 of the machine and the upper lever 31 being iv.

oted at to the lower end of a link 36 which The shaft rotates in the direction of the,

arrow indicated in Fig.4 from which it will be seen that as the crank pin reaches the upper end of the slot inthe connecting rod 38, the same will be operated as a push rod to swing the upper lever ,36 around. the

center 35 as a fulcrum, the first air of toggle? levers 30, 31 being then under tension and standing in substantially straightened condition. As this movement continues the upper lever 36 snaps over into engagement with a stop 45 (Fig. 3). Themovement described-results in a quick closing action of the press and as the press parts approach the closed position, the cam 43 comes into operation and engages the roll 44. (Fig. 3) to straighten or partially straighten the lower toggle 3031, as indicated in Fig. 1, thereby ezgerting a final powerful closing force. ,1

In the openingof the press the reverse actions take place, the cam first turning away from the toggle pivot so as to release the final squeezing pressure and the rod 38 being operated as a pull link, when the crank pin engages the lower end of the slot therein, to break the upper toggle and bring the parts from the position illustrated in Fig. 1 to the position indicated in Fig. 4.

. The three toggle levers, it will be seen, thus constitute in effect a com ound or double-jointed toggle, one joint 0- which is operated to effect a relatively rapid move-' ment of the press parts and the other joint of which is subsequently operated to effect a slow powerful closing action of the press parts.

Another feature ofthe invention is the provision of timing mechanism for holding mechanism is constructed as follows. I

In F ig.-2 I haveshown a drive shaft made up of two

sections

50 and 51 which may be coupled together by a clutch'52, power being applied to one of such shaft sections as by means of the balance wheel indicated at 53. When the machine is in o eration the drive section 50 of the shaft wi operate continuously and the driven section 51 willbe oper- .ated onl when the clutch 52 is in engagement. he driven shaft section 51 carries a pinion 54 in mesh with an internal gear 55 on the cam and crank shaft/12. This gear eriod of cated in Fig. 2, with the press fully closed the cam 58 has forced inward the slide 60 and this through the. bell crank connection described has 0 erated the clutch shifting lever to uncoup e the clutch so that under such conditions the machine is tripped with the cooperating pressparts in closed relation.

Connected with the movable press head is a link which engages at its lower end-the angle arm 66 of a pivotally supported pawl 67 and which'pawl is disposed when thus actuated by themovable press head to engage the teeth of a ratchet wheel 68 rotatably supported on the driving shaft section 50. This ratchet is shown in Figs. 5and 6 as fixed on a sleeve, 69 which is rotatably engaged on the shaft section 50 and rotatably engagedon this sleeve is a second sleeve or bushing 70 carrying gear teeth 71 engaged bypinions 72. Aflixed to or forming'a part of the pinions 72 are the pinions 73 meshing with the gear teeth 74 carried by the ratchet sleeve 69. The

pinions

72 and 73 are journaled on studs 75 supported on a disk or hub 76 keyed or otherwise-fixedly secured on thi driving shaft section.

rom the structure thus far described it,

will be apparent that when the press is closed (Fig. 1), the pawl will be thrown into engagement'with the ratchet and the ratchet will be thereby held against rotation while the driving section of the shaft continues to rotate. In such continued rotation of the shaft the pinions 73 will be carried about the ratchet gear 74 and will be rotated thereby. The pinions 72 forming a part of the pinions 73 are thus driven and their motion" is communicated to the gear 71 on the loose sleeve member 70, consequently, when the ratchetis caught by the pawl, the sleeve member 70 will be rotated, but in a direction the reverse of the direction of rotation of the shaft section '50. The relative movements of the shaft 50 andthe sleeve element 70 are-indicated by the reversely pointed arrows in Fig. 5. Also, the gearing describedis referably of the sped reduction type so tii sleeve 7 0 be rotated in the reverse direction, but will be rotated at slower speed than the shaft section 50,

The reversely rotatingsleeve 70 carriesa trip shown in the formof a beveled cam at not only will the connected with the lower arm 85 ofthe bell crank lever 61. Consequently, when the trip cam 80 in the course of its reverse rotation, the cam shoulder 83 the slide rod 894% will be shifted inward and the bell crank 61. will be tripped to release its hold on the clutch shifting lever 62 andwhen this leap pens the clatch spring 86 will again throwthe clutch in engagement, coupling the two shaft sections together and causing the crank shaft to be operated to .trip the toggle and open the ress. By reason 0 the adjustability of the trip I cam 80, the period during which the press is held closed may be varied at will.

Then the parts are tripped as described, to open the press after the elapsed period of time predetermined upon, the timing gearing is restored to its original relation with the stop 93 on the trip gear (Figs. '1 and 5) in engagement with a stop 92 provided on the base of the machine. This restoration is due partly to the friction of the sleeves on the shaft which causes the trip sleeveto rotate withtlie shaft until the stop 93 engages stop 92, but may be assisted and made quicker in operation by the provision of a restoring spring which I have indicated at 90 as connected between the stop 92 on the base and the trip sleeve, the inner end of such coil spring'being shown as connected with the trip sleeve at 91.

This spring, it will be evident, is tensioned by the relative rotation of the ratchet sleeve and trip sleeve when the ratchet is caught by the pawl and exerts such tension, when the pawl releases the ratchet, to rotate the trip sleeve back to its former position with the shoulder 93 in engagement with the stop 92, which stops thus constitute cooperating abutments to fix the initial position of the It will be clear from the description thus far that by the mechanism described the press is brought with a relatively rapid motion to substantially the closed position. a

powerful squeezing pressure is then applied to fully close the press and that the press is then held closed for a predetermined period, after which it .is opened with a relatively quick motion. When this cycle of operations has been completed, the press is stopped by cam 57 and remains open condition until it is again started by some act on the part of the operator. In the machine herem disclosed, the press is started by a foot pedal 100 which is shown in Fig.

' 2 as connected by a link or pull cord 101 with the spring-pressed bell crank lever 61. It will be clear from this view that when said We is depressed the bell crank will be tripped from engagement with the clutch shifting lever 62 and the clutch will betheree by dropped into engagement so as to start l the machin lVhile I have shown timing mechanism which is operated only for the purpose of holding the press closed through a plede terminal period of time. it will be apparent that this mechanism might be duplicated for the purpose of holding the press open and for starting the same after the lapse of predetermined time.

This and other modifications and changes will come within the scope of the presentinvention as will be clear from the claims appended.

What I claim is:

1. The combination with a press having a movable press element, of a double-jointed toggle supported at one end and connected with the movable press element at its opposite end, means for operating one of the joints of said tbggle with a relatively quick movement and means for operating the other joint of the toggle with a slower movement.

2. The combination with a press having a movable press element, of a compound tog le supported at one end and connected with t o movable press element at its opposite end, means for operating one of the joints of said compound toggle through a relatively great o of movement and means for operating another joint of the toggle through a lesser e of movement.

3. The combination with a movable press element,.of a compound toggle supported at one end and connected at the opposite end with said movable press element, means for operating one of the joints of said compound toggle through a relatively great range of movement and with a relatively rapid motion and means for operating another joint .of the compound toggle through a lesser site end with the movable press element, a

quick acting crank connected to operate one of the joints of said toggle and a slower acting cam arranged to operate another joint of said toggle.

5. The combination with a movable press element, of a multiple jointed toggle supported at one end and engaged with the movable press element at its opposite end, means for making and breaking one of the joints of said toggle and means for partially straightening another joint of said toggle.

6. The combination with a movable press element, of a multiple jointed toggle supported at one end and connected with the movable press element at its opposite end,

means for making and breaking one of the joints of the toggle and means for subsequently operating on another joint of the toggle. 1

7. The combination with a movable press element, of a multiple jointed toggle supported at one end and connected at the opposite end with the movable press element, means for straightening one of the joints of the toggleand sequentially operating means for applying a straightening force to another joint of the toggle.

8. The combination with a movable press element, of a double-jointed toggle supported at one end and connected at the opposite end with the movable press element,-means for straightening one joint of said toggle and sequentially operating means for then applying a stralghtening force to the second joint of the toggle.

9. The combination with a movable press element,of a double-jointed toggle comprising end levers and an intermediate lever, a pivotal support for one of said end levers, a pivotal connection between the other of said end levers and'said movable press element, an actuating connection with one of said end levers and a. connection with the joint between the opposite end lever and the intermediate lever. v I 0. The combination with-a movable press element, of a double-jointed toggle comprising end levers and an intermediatelever, apivotal support for one of said end levers, a pivotal connection between the other said end levers and said movable press element actuating and seiparate differently timed means or operating the two joints between theend levers and the intermediate lever.

11. The combination with a movable press element, of a double-jointed toggle compris= ing three pivotally connected levers, a pivotal support for one ofthe end levers of said toggle, a pivotal connection between the op posite end ever and the movable press element, an operating connection engaged with said last mentioned toggle lever and actuating means for operating the joint between V the other end toggle lever and the intermediate to le lever.

12. he combination with a movable press element, of a double-jointed toggle lever comprising pivotally connected levers. a pivotal support for one of the end toggle le-.

vers, a pivotal connection between the other opposite end toggle lever and the movable press element, means for operating the joint between one of the end toggle levers and the intermediate toggle lever, means for limiting the straightening movement at said joint and means for operating the joint between the other end toggle lever and the interme diate lever.-

13. The combination witha movable press element, of a, double-jointed toggle 'comprising three pivotally connected levers, a piv- I otal support for one of the end levers of the toggle, a pivotal connection between the opposite end lever and the movable press element and means for sequentially operating the two joints between the end levers and the intermediate lever.

14. The combination with a movable press element, of a double-jointed toggle comprising three pivotally connected levers, a pivotal support for one of the end levers of the toggle, a pivotal connection between the opposite end lever and the movable press element, an operating connection engaged with one of the end levers at a point to one side of a line between the pivots at the opposite ends of said lever and means for operating the joint between the opposite end lever and the interlnediate lever. 4

15. The combination with a movable press element, of a double-jointed toggle comprising three pivotally connected levers, a pivotal support for one of the end levers of the toggle, a pivotal connection between the op- '1 posite end lever and the movable press element, an operating connection engaged with one of the end'levers at a point to one side of a line betweenthe pivots at the opposite ends of said lever and means for operating the'joint between the opposite end lever and the intermediate leverincluding a cam and an abutment member at said latter joint and engaged by said cam. 4

16. The combination with a movable press element, of a double-jointed toggle comprising three pivotally connected levers, a pivotal support for'one of the end levers,.a pivotal connection between the opposite end lever and the movable press element, a push and pulllink connection with one of the end toggle levers and means for operating thev jolnt between the opposite end toggle lever and the intermediate lever.

17. The combination with a movable press element, of a double-jointed toggle comprising three pivotally connected levers, a pivotal support for one of the end levers of said toggle, a plvotal connection between the opelement,'of a double-jointed toggle comprising three pivotally connectedlevers,

a pivotal support for one of the and levers ment, a crank, a link engaged between said cran k' and one of the toggle leversaiid ha'vinga lost motion connection with one of said parts and means for controllingthe operation of the other toggle levers.

of-the toggle, a pivotalconnectlon between the op-' I posite end lever and the-movablepres's ele 19. The combination with a movabliargss element, of a double-jointed toggle comprislng three pivotally connected levers, a pivotal support for one of the end levers of the toggle, a pivotal connection between the opposite end lever and the movable press element. a crank pivoted to one of the toggle levers and a' lost motion connection with the crank and means for operating the other toggle levers.

210. The combination with a movable press element of a double-jointed toggle comprising three pivotally connected levers, a pivotal support for one of the end levers of the togglga pivotal connection between the opposite end .lever and the movable press elemeat, a crank pivoted to one of the toggle levers and a lost motion connection with the crank-and-means for operating the other toggle levers including a cam rotating withthecmnkand'arrangedtoengagea member carriedbyfaid other toge levers.

mollingflaejointbdlemtheintermedi ofaid 'fionwiththeintumediateleverandaidin 'mdlever 21. The combination with a movable press elemmtpof a compound toggl' e comp three pivotally connected levers, a pii ifi support for-one of the md'levers of said toggle a pivotal connection the opposite end'lever and the movable press element means connected with aid end lever for swingmgtheameahoutilspimtalconnec fonnmg' aswmgrm' 'qfnlcrum' fortbeendkverwhidrisctmnededwiththe flThepombirntionwithamovableprea element o acorn togglecompnsmg three plvotally-crmnected levers, a pivotal arpportforme'of flnemdlew'sofaid tngglga ivotalconnectionbfiween-the'op-v md hvtr and the movable. press elemummumconnmtedithaidendlever for flleameabontitspivohlcon- W mm'nywm mrrn urine offlae end levers of aid,,a,eamopera conncdionbetemtheopadriveclutclrfor elemmfiandmeansfor ate lever and said pivotally supported end lever including a cam operating on the said joint 24.111 combination a press, means for opening and closing said press and mechanism operated by and. controlling said opening and closing means to maintain the press closed for a predetermined period of time.

25. In combination, a puss, actuating means for opening and closing said press and variable mechanism operated by and controlling said actuating means to maintain the press closed throughout a variably determinable period of time.

26. In combination, a prw, actuating means for opening and closing the press and timing mechanism operated by and controlling said actuating means to the press in one condition throughout a predetermined period of time.

271111 combination, a press,, actuating means for opening and closing the press and variable timing mechanism operated by and controlling the actuating means and adjustable to maintain the press in one condition throughout a variably" predetermined period n In a '1 "ii" i duating com ma on, a. press, a means for-opening and closing said press and automatic medlanism' operated by and said actuating mans to Clqfil, the preaand maintain it closed bout a predetermined period of time and to upon open the press and hold the same open. 29. In combination, a press, actuating meansforo andelosingaidprm, automatic mechanism operated by and controlling said actuating mm to elosethe press and maintainitclosedfllrougimt a prcdeterminediperiod of time and to thereupon open' the press and hold'the same open and manually controlled means for tripping aid mechania'n to repeat the'cycle of operations aidpowermeansandaidactnatingnrednaflue actuating medlanism and aiddlultch, If

31. avpregadnahngmmns enclosandopem'ngfllepressmd' ndm a 1 mg ted movunentofaldslraflz, aiddlaftandmnnedlons by theeam for controlling said actuated clutch.

shaftsednms.

33. In a press, ,driving and driven shaft trolling the clutch and means for control- 66 sections,pressactuating means operated by hug the clutch independently of said trip the driven shaft section, a clutch connection mechanism. I between said shaft sections, a sleeve rotata- 37. In a press, driving and driven shaft bly engaged on the driving shaft section and sections, press actuating means operated by provided-witha gear and with a ratchet, a the driven shaft section, a clutch connection sleeve vrotatably engaged on said ratchet between said shaft sections, .a sleeve rotasleeve and provided with a gear and with a tably engaged on the driving shaft section' trip, a support fixed on. the driving shaft and provided witha gear and with a ratchet,

10 section, gears carried by said support and a sleeve rotatably engaged onsaid ratchet meshing'with the' gears on the ratchet sleeve sleeve and provided with a gear and with a 'arid' ,;tr1p&s'leeve, a pawl; controlled by the trip, a support fixed on the driving shaft pre'ss'aiid'zarrangedtoen age the ratchet and section, gears carried by said support and mec operated by tile trip and controlmeshing with the gears on the ratchet sleeve I I, and trip sleeve, a pawl controlled by the 9 1 SS, driving anddriven shaft press and arranged to engage the ratchet, ressjactuating means operated by mechanism operated by the trip and conshaft "section, a: clutch connection trolling'the clutch, 'acam operated fromsaid sha'ft "sections, a sleeve. rotathe driven shaft section and clutch controlaged 'on" the driving shaft section ling means actuated by said cam. .7 I

p ylded with'a gear andwith a ratchet, 38. In a press, driving and driven shaft ,ja sleeve Jotatably engaged on said ratchet sections, press actuating means operated by *sleeverandprovid'ediwith a gear and with a the driven shaft section, a clutch connecf" trip-,-a slipport fixed onjthe driving shaft sec-' tion between said shaft sections, a sleeve ro- .2 tion,-gears carriedfby said support and meshtatably engaged on the driving shaft sec- 4 ---5 :ing with the.gearsionthe'ratchet sleeve and tion and provided with a gear and with a ""tr p sleeve,-la' -paw l'controlled-by the press ratchet, a sleeve'rotatably engaged on said fi d arranged to en age the'ratchet, mecharatchet sleeve and provided with a gear and nism oper atediby th eI-trip'and controlling with a trip, .a support fixed on the driving -,80 the clutch means for adjustably supshaft section, gears carried by said suppor i porting-the trip on, the trip sleeve aforeand meshing with the geats on the ratchet 9-5 sa'id. sleeve and trip sleeve, a pawl controlled 7 35. Ina press, drivingand driven shaft by the press and arranged tolengage the n sections," press actuatingmeansoperated by ratchet, mechanism operated by the flip 35 the driven shaftsection, a clutch' connecand controlling the clutch and clutch con tion between said shaft sections,- a fslee've trolling trip jmechanism actuated by the 109 jrotatably engaged on the driving sha-ft'sec- -driven shaft section.

tion and provided with a gear and with a v 39. In a press, driving and driven shaft ratchet, a sleeve rotatably en aged on said sections, press actuating means operated by p Q ratchet sleeve and provided with a gear and the driven shaft section, .a clutch connecwith a trip, afsupport fixedon the driving -tion between said shaft sections, a sleeve V shaft'section, gears carried by'said support rotatablyengaged on the drlving shaft secand meshing with the gears on the ratchet tion and provided with a gear'and w1th a sleeve and trip sleeve, a pawl controlled by. ratchet, a sleeve rotatably engaged on said. 45 the ress and arranged; to engage the ratchet,; ratchet sleeve and provided with a gear and mec 'anismfoperated b'y the trip and con-l with a trip, a support fixed on the driving 11 0 'trolling'j-the clutch and a spring connected shaft sectlon, gears carried by "said support with -the'trip sleeve for restoring said-sleeve and meshingwith the gears on' the ratchet to arr-initial relation when the ratchet is ee a ip e ey p controlled y 59 released from the :pawl.; the press and arranged-to engage the ratchet,

'l. l36.- In. a. press -gdrivuig arid driven shaft mechanism operated by the-trip and control f "secti (is, press? means "operated by ling the clutch, clutch controlling tr1-p s the driven shaft. se tion, 1 t h. onneo mechanism actuated by the driven shaft section 'between said shaft sections, .a I sleeve tion and manually operable means for actu- '4 6 rotatably engagedonthe [shaft secatingthe clutch.

' tion'and provided-.lwith a"gea1y and.with a, 40. In a press, driving anddriven shaft bii id sections, pressactuating means operated by and the driven shaft section, a clutch connection I driving between said shaft sections, asleeve rotap'port tably engaged on the driving shaft section and-provided withva gear and witharate'het, 1'26 I a'sleeve rotatabl engaged on said ratchet sl'eeveandprovi ed with a gear and with a trim-agsupp'ort fixed on thexdriving shaft com section, gears carried by said support and meshing with the gears on an ratchet and trip sleeve, a pawl controlling by the press and arranged to engage the ratchet,

'mechanism operated by the trip and con trolling the clutch, the .pressactuating means aforesaid including a shaft operated from the driven shaft section, a crank and a cam on said operated shaft and a compound toggleoperatedby said crank and 11. In a press; and driven shaft sections, press actuating means opentzxl by tbedriven shaft section, a clutch connection between said shaft sections, a sleeve rotatably on the driving shaft section and provided with a gear and with a; ratcheg a deeve rotalnbly on withatripgasupportfixedonthedijving shaft ection, gears by said support andmeshingwiththegeusontheratdiet sleeve and trip sleeve, a pawlcontrolled by operated by flie (rip andcontrolling the clutch, a pinionon'the drivinashaft c r g y slid pmiomaeamcamedb sai gear slide actuated by saidcam betweensaidslideand'the-dutch.

the-driven shaft section, a clutch connectionbetweensaiddnftsediais-asleevem- 35 tatably engaged on the driving I dlaftseohonandpmvided'withagmrandwiflia ratchet,a sleeve rotatablyonsaid ratchetsleeveandprovidedwifli agearandwithatrip,asupport limdonfliedliving gears carried by mid support and meshing o sleevcandtripsleevma pawl mutrolledby the -.--andamngedtoengageflientdid,. v opera bv the trip and controlling the clutch,'n'pin1on on the driving shaftsedlomngeareng db l romacamcamedbysudgeugnshdeachiatedbysaidcambetwcmslid? slideandtheclutclnadnitopentedbythe geanacrankandacamon'siddnftand acompolmdtoggleoperatedbysaidmnk audca'mandfonningaputofflie'pms actuating-'meammfmedto.

43. In relatively movable pmsselemmts,,heatingandcoolingconneev0 l- M- tmlling admissiono nnd ooolng' fluidtosaidandnpluralityof varioudychanderimd means carried by oneoftherelafivelymovnblepmss' ai a? shiftingsaid, vein OlfllihgOPQlI-' tionoftbepmanda'seoondmnherfor nutomaticallyshiflingsudvalveintbedos ingofflnepmss.

-14. Incombination'with a press having a movable press element heating and cooling connections tomid element, a valve controlling admission of hating or fluid to said connections and a plurality of variously characterized means carried by the movable press element comprising a member for automatically actuating said valve in the opening movements of pras, and a :second member for adnating said valve in felemenlgheatingandcoolmgoo thereto, a two-way valve controlling How of coolingliuid to said connections and a pluralityof vnriouslydiandeb.

in! m u u fl i, for (Pai atingsaidvalminflieopehingmo of-thepmtoadmitheafingfluidtoflne movablepmdunentandas eunidnmber tofaidfiistmmednmnberfor opentingthevalveinfliedosingnmvunmt oftliepmssto admitcooliugfluidtofl e movable pm t. l7. In'combinalhrlwith'a movable m l t h lin cool" m Metro-way valve flow ofheatingor fluidtosidconneetionsandmeansforoperafin'gsnidvahein theopmingmovemmtoftheprmstoadmit heatingfluidtofliemovublepmsselemmt andforoperlfingthevalmintheclosing movunent of them to admit cooling fluid to the movable pres element, meinsincludingapairofqiaeedstopscarlielilgglry immovablePM valve .lavl l-tll sedampmsmeansoperatedbythedrivmfindtsmhon aduhdl hlpsleevgupawlbyflnepmmd to the aid clutch and means for returning the trip to a predetermined position when the ratchet is released by the pawl. V 3

49. Ina press, driving and driven shaft sections, press actuating means'eperated by the'driven shaft section, a clutch connection between said shaft sections, a sleeve .rotatably engaged on the driving shaft section and provided with a gear and with a ratchet, a sleeve rot-atabl engaged on said ratchet sleeve and provi ed with a gear and with a trip, a support'fixed on the driving shaft section, gears carried by said support and meshing with the gearson the ratchet sleeve and trip sleeve, a pawl controlled by the 15 press andarranged to enga e the ratchet, mechanism operated by the trip and controlling the clutch, means for returning the trip to a predetermined position whenthe ratchet is released by the pawl, including a-relatively stationary stop, a cooperating stop on the trip. sleeve and a spring acting on the trip sleeve to rotate the same in a direction to bring the stop carried thereby into engagement with the relatively stationarystop.

'In witness whereof, I have hereunto set my hand this 1st day-of March, 1920.

WILHELM B.- BRONANDER.