US837243A - Block or tile press. - Google Patents

Description

PATENTED NOV. 27, 1906.

L. N. MCGARTER.

u 0 m T? m m W l w/ PATENTED NOV. 2'7, -1906.

L. N. MGGARTER,

BLOCK OR TILE PRESS. APPLICATION FILED*SEPT. 22, 1:904.

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' PATBN-TED Nov, 27, 1906.

L. N. MQGARTER.

BLOCK 0R TILE PRESS. APPLICATION FILED SEPT. 22, 1904.

4 SHEETS-SHEET 4- h1- mm fnvenior': Louis 1W MoCarZeg: by

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i l l i LOUIS NQMGOARTER. OF XOB-RISTOIYN BOROUGH, PENNSYLVANIA PATENT OFFICE.

ASSIGNOR TO THE INTERNATIONAL PAVEMEIT COMPANY, OF HARTFORD, CONNEOTICLTT, A L'TORPORATION OF CONNECTICUT.

BLOCK OR TILE PRESS.

nots'szaas.

To all whom, it ntmy cancer/1,:

Be it known that 1, Louis N. MCCARTER,

a citizen of the United States, residing in the borough of N orristown, county of Montgomcry, and State of Pennsylvania, have invent- ,ed an Improvement in Block or Tile Presses, 'of-which the following description, in conan improved machine or press for compressingasphaltio or other blocks or tiles for paving and other purposes. e

The various features of the invention will be moreclearly understood from a descriptionof the best embodiment of that inven- .tionnow known to me and illustrated in the accompanying drawings. fiReterring to said drawings, Figure 1 is a ,side elevation of the press referred to. Fig.

Zis a plan view thereof with the compressionhead and feeding-neck removed; Fig. 3, a vertical longitudinal section of Fig. 1 Fig. 4,

a vertical 'crosssection on the irregular dot-- ted line 4 I, Fig. 3; Figs. 5 and 6, detail views illustrating the positions of parts at diii'erent stages of the operation of compressing a block; Fig. 7, details showing the cam-rollers for shifting the moldblo'ck; Fig. 8, a detail illustrating the auxiliary means for. supporting the mold-block following the action of the lifting-cams thereon, and Fig. 9 a detail showing one of the friction devices employed and to-be described.

The: press shown in the accompanying drawings and selected for illustration of my invention is adapted for compressing what are commonly known as -asphalt pavingblocks, the composition of which comprises crushed and partly-pulx eri'zed stone, fines, and a cemeutitious asphaltic binder.

In the particular press illustrated the asphaltic or block composition is conducted from the mixing or preparing apparatus to the pressthrougha suitable steam-heated neck A to keep the composition at a proper consistencyduring its passage to the coin- .pressing-mold. This steam-heated neck is Shown as composed of opposed castings a a,

flanged and secured one to the other in suit 'gabletmanner and each separately cored or 'cham'beredto form one or 1nore,st'eam-cliam Specification of Letters Patent.

Application filed September 22, 1904. denial No. 225,424.

Patented Nov. 27, 1906.

one or more inlets-a and exhausted through one or more outlets c The interior passage for the materials within this neck is made tapering from top to bottom or from the inlet to the outlet ends thereof .to enable the .material to gravitate freely therethrough.

The nature of any composition containing asphaltic or equivalent cement is such that it will easily clog and pack unless some provision is made to clear it while in transit This chambered neck rests upon and is secured to the compression-head B; which ex.- tends transversely of the machine (see Fig. 4) and rests at its ends upon the side, frames 2) b, which in turn are bolted upon the bedplate 6, Figs. 1 and 4.

The compression-head 'B (see Figs. 1 and 3) has extended fromone herein its right side a ulcrum-arm b notched at its outer end to rest upon the fulcrum-support 1), carried by a ,s;tandard b, erected upon the bedplate I). This compression-head B is held down in normal position upon the sup orting side frames 6, described by two long olts 6 (see Figs. 1' and 2,) which depend through the bed-plate b and are fitted at their lower ends with eyes I), which en age the end 8 of hers into which steam is admitted through a wristpin 0 carried at tie free end of a long lover I). The short end of this lever adjacent the wrist-pin I) is notched for a bearing upon the fulcrum-support]; (see Figs. 1, 3, and 4,) to which it is tied for purposes of safety by the links I), Fig. 1. f'These'links also tie the bolts to its fulcrum to enable the lever to be moved in an opposite direction to lift the bolts, thereby to permit the compression-head to be lifted when necessary for adjustment orotherwise. To furnish a yielding support for this lever and the compression-head and also a means for moving-the lever to move the bolts to free the head, as

described, the long end of the letter is suspended from the piston-rod I) ofa'piston b in the vertically-arranged cylinder b, herein shown as attached to the fulcrum-standard b Figs. 1 and Steam or other suitable .lluid under pressure is admitted to the cylinder b above the piston therein, I havin herein shown the inlet-pipe at b. fitted with suitable controlling-valve I). and a,reduc'- ing-valve 6 said pipe bein also prom'ded witha pressure-gage b". desired, said times below the pi e may also'be' providedwitharelief or sa ety valve b for the purposes of safety.

The condensation is taken care of by an out, let b Lleading from the side of the cylinder above the piston in the lowest osition of the latter and'communicating wit a suitable trap device I).

From the bottom of the cylinder andat all piston therein leads an exhaust-pipe b, Fig. 1, which communicates with a branch b from the supply-pipe b. Valves, however, are provided at b I), respectively above and below the junction of t e pipe I with the branch I), whereby with the valve I) closed and the valve b en there isprovided a constant outlet or rip for and at the bottom of said cylinder, and .whereby'also with the valve 1) closed and the valve b open live fluid under pressure 'may be admitted to the cylinder below the piston therein to-lift' the same positively and the bolts b as hereinbefore described. The purpose of this fluid-pressure su port of the compression-head, as will more lly hereinafter ap ear, is to permit-of certain relief un der con itions which might otherwise cause damage-to the press.

The compression head is provided with a feeding-passage below and registering with the stear heated neck A and communicating at the proper time with the mold m, Fig. 3, in the mold-block m, carried by the horizontal carriage m mounted to slide fore and aft in the frame upon the inturned flange-guidesm', Fig. 4*, upon the side frames b. At its rear end at the r1ght,Figs. 1 and3, thiscarriage'm is provided with two rearwardly-eX-tended arms m, arranged one fiat-wise above the other and holding between and at their outer ends the vertical pin m (shown best in Fig. 7) and keyed within the eccentric bushings m, which have their bearings in the said arms m. The end of this pin ,m is squared or otherwise adapted to be rotated, thereby to rotate the said eccentric bushings and change the axial distance of the pin on from thefeeding-neck in the com ression-head for urposesof adjustment. folpon this pin and between said arms m is mounted a yoke m, carrying at its ends the cam-rollers m which travel, respectively, in pr0per lyshaped paths in the cams m". (See Figs. 2 and 3'.) These cams are fast upon'a shaft m journaled in suitable bearings in the side frames 1), rotation of said camscausing longi-f' tudinal' or fore-and-aft travel of the moldcarriage.- The bottom of the mold is constituted by a vertically-movable plunger 0. With the carriage in its rearmost position (see Fig. 6) and with the plunger 0 in its lowermost position the block composition may be fed ,by gravity or otherwise downward through the heated neck and compre sion-head' intoand to fill the mold. Rotation of the cams m then moves-the carriage forward or to the left into the position shown in Fig. 3, cutting off the supply of block compositionand'placing the mold directly beneath the portion of the com ression-block that lies at the left of the feeding-neck. The plunger 0 is then lifted to compress the composition in the mold, as shown in Fig. 3, against said compression-head, after which the plunger drops slightly to relieve the block when said carriage is further moved to the left to a position to clear the compressed lock of the compression-head, after which said plunger is again further'lifted to expel the compressed block from and through the top of the said mold.'- With the plunger still elevated the carriage is then returned to its original position, leaving the compressed orted upon the top face of the block sup mold.bl oc but in front of the compressionhead, asshown in Fig. 5. Upon the next succeeding forward movement to the left in the drawingsthe compressed block-upon the top of said mold-block will be carried far enough to the left to be engaged by suitable feeding-out mechanism, (typified at F ,Fig. 1,)

which removes the block from the press and places it preferably upon a suitable conveyer, which conveys it away water or other cooling medium to set it to a condition for use.

Referring now to Fig. 3, the plunger 0 is supported upon a cross-head 0, mounted to move vertically in the carriage m said crosshead resting upon a rectangular box-csising 0 which has a long horizontal bearing slot or way which receives the box 0 of the eccentrio 0, fast upon the main shaft ,0 In the operation of the machine the eccentric, acting through its box 0 and casing 0, lifts the cross-head 0 and plunger 0 "up compress a block. The carriage is then moved to the left, Fig-3, the box-casing sliding upon the elevated box, and continued rotation of the main shaft 0 causes a pair of lifting-cams 0,

' mounted thereon at opposite sides of the boxcasing, to engage suitable flanges or wings 0 upon the SldES'Of the cross-head 0 and lrft the plunger 0 above the compression positicin through a bodyof and to the e'ecting or discharging position (shown in Fig. 5) to eject the compressed block from the mold. This arrangement permits the lifting or e ecting cams o to ?be made of desired shape and throw without interfering with the powerful eccentric movement for exerting the compressing pressure,-

high'as two'hundredwhich frequently runs as tons in a press for making asphalt pavingblocks. In the press here shown the movement of the eccentric would permit the cross head and its plunger to drop for a considerable distance before the ejecting-camso would engage the cross-head 0', and'tolpre vent this I have provided a latch '11; 'w

slightlymerely enough 1611* catches the cross-head aft'eritjhas dropped to inensl c so as to permit the carriage to be moved freely forward into block-ejecting positionthis latch holding the cross-head until the ejecting-cams engageit from beneath to further lift it to eject the block. The latch l have shown is best illustrated in Figs. 3 and 8.

and consists of a plunger p, arranged to move horizontally in a cylinder p, with a spring 12 tending to move it normally to the left, where- IO it will project beneath and thereby support a bracket p adjustably mounted upon the cross-head 0' and having its position controlled by suitable adjusting devices, (typified at p To remove the latch and permit the I 5 release of theplunger, I have provided the latch with a stem p connected at its outer end with an arm p fulcrumed at p and having its long end opposed to a tappetscrew 1), fast on the bed-plate b of the press. At or near the end of the return movement of the carriage to the right, Fig. 6, the long arm of this lever p engages the tappet-screw and removes the latch to permit the plunger and its cross-head when released by the ejecting.-

2 5 cams to drop past the latch upon the wedges w w, Figs. 3 and 6, the longitudinal position of which determines the lowermost position of the cross-head, and therefore the depth of the mold prior to compression and the vol- 0 ume of composition that is to be compressed into a block. These wedges may be adjusted longitudinally by suitable means, as the adjusting-screw w, connected by a sprocketchain w with a hand-wheel 'w conveniently 3 5 positioned for manipulation by the operator. To prevent the cross-head from dropping too readily from its elevated to its lowermost position supported upon the wedges w, I have provided the carriage with suitable re- 40 tardingorfrictiondevices. (DetailedinFig.9)

These friction devices are here shown as disks (Z, pressed by the springs (Z against the face of the cross-head where it slides in the carriage. The tension of the springs d is ad- 5 justed in suitable maimer, as by the adjusting-screws d To take up any shock that might otherwiseresult from-thereciprocations of the cartriag'e m the latteris provided' tsee Figs. 1 and 3) with a rearwardly-extended rod h,

which passes through the fulcrum-standard b at the right, Fig. 3, and has suitably sup- POI'tGClIIPOH it and at opposite sides'of said support the cushion-springs h h, each ad- 5 5 justably supported upon said rod h. These springs are so adjusted that one or the other will be compressed just prior to the limit of movement of the carriage in either direction,

thereby to take up any lost motion or shock and by their recovery to assist in starting said carriage upon its return movement.

The various shaft-s are-friven in suitable manner, herein as best shown in 2, where power is applied through usual fast and loose 6 '5 pulleys e e to a pulley-shaft 0 provided with a fly-wheel e and a pinion e, which drives a spur-wheel 6 fast on an intermediate shaft c. This intermediate shaft has a pinion e,

which meshes with and drives a large toothed wheel e on the main or eccentric shaft 0*, described. This main shaft 0 is provided also with a spur-wheel e, which drives a spurwheel e on the cam-shaft m described.

As will be understood from the foregoing description, in the operation of the press the block composition rests in a solid and heated column in the feeding-neck A and passage in the compression-head supported upon the mold-block m of the carriage m When the carriage reaches its rearmost position with the plunger 0 down, the block composition fills the mold, after which the carriage is moved by cams m forward into position with the mold under the compression head, when the eccentric 0 lifts the plunger and compresses the block. The movement of the eccentric relieves the presser slightly after compression and leaves the cross-head and plunger resting upon the latch 11, whereupon the carriage is further moved by its cams to the left to carry the compressed block over/and clearof the compression-head, after which the ejecting-cams o engage the cross-head and lift thelatter away from the eccentric box-casing to cause the plunger by itsfurther elevation to e'ect the compressed block from the mold. T e carriage now begins its return movement, and the compression-head by preventing the discharged block from folv lowing the carriage causes said block to-be pushed off onto the mold-head in front of the mold, Where. it remains until upon completion of the next succeeding block it is moved to the left, as described, with the carriage, to

be engaged by the feeding-out device F.

It will be noticed that the plunger ohas a fixed and invariable throw, so that theblock is always compressed to a given size, regardless of the consistency or character of the composition within themold, provided, of course, there is not too much variation in said composition.

For example, asphalticblock compositions are known to vary in"con-' 'sistency and in capacity to flow under -vary-- mg conditions of temperature and the like,

so that under even the most careful handling more of the composition will at times enter the mold than at others, notwithstanding the mold at all times would appear to be completely filled. It will be noticed, however, that whatever the condition of the composition in the mold the plunger always rises to a given elevation and compresses the ma terial into a block of a given size, whether that block be more or less dense, as the result of the mold containing more or less of the compositionthat is, within safe limits. To provide against damage to the press by the filling of the mold with such a volume of the composition as cannot possibly be cominto ablock of the required dimen sions, and this occasionally results under unusual conditions, the compression-head is supported by the long lever 6 under the press and the steam-filled cylinder I2 The ssure of steam in this cylinder is always sufiicient to hold the compression-head down against all safe pressures, so that within'a the steam or fluid cushion through the medium of thelever arrangement shown a comparatively small cylinder with relatively low stoam pressure may be employed and at the same time obtain greater stability and freedom from undesirable fluctuations than 1 would be possiblewere' the compression-head directly supported by the steam-cushion member or piston. In place of the mechanical or lever connection between the fluidcushion and the compression head I may use any other medium interposed between the fluid and the head which will serve to corn munica-te the pressure of one to the other,

either with or Without a multiplication herev scription herein.

in provided by the lever shown. I

' The mold and compression-surfaces are made detachable for renewal in a manner well known in the art and which needs no de- Ihe nature of compositions is such that unless the plungerface is properly lubricated the oompositlon,

after having been compressed under high pressure thereupon, will adhere in greater or less quantities thereto and not only clog the plunger, but produce defective blocks. While in a press of the character shown this tendency is reduced to a minimum because the block is removed from oflthe top of the plunger by a shearing action as the carriage returns beneath the compression-head, nevertheless it is desirable to provide for convenient means for lubricating the top of the plunger. I have provided for this in the resent machine by eft face, Figs. 1 and 3, of the compressionhead B a spout or plate s, which is screwed to constantly-changing the front face of the head and which furnishes the active face which engages near the block and pushes the latter off from the top of the plunger as the carriage retreats under the head. As the carriage retreats and this spout pushes off the block it leaves a narrow and portion of the top face of the plunger exposed at the bottom of the spent as the p lunger passes beneath it to its giving the operator opporreanmost position,

through this spout and tun-ity to pourdown asphaltic and other similar attaching to the front or normally fixed arfabutment and a feeding-neck, an opposupon the plunger 1passing beneath it a lubricant, such as mg'ten Wax, as often and in suchquantity asinay be necessary. Heretofore in presses of this character, so far as known to me, it has been im ossible for the o erator to reach directly witli any lubricant t e face of the plunger, being obliged to pour the lubricant more or less promiscuously over and upon the mold face or block, trusting to chance for it to work down upon the plunger-face.

I have here described my invention in its best embodiment now known to me; but said invention is not limited to the particular embodiment disclosed, as said invention 0bvi ously may be varied Without departing from the spirit and scope of the invention.

I claim v 1. In a ress of the character described, a normally iXed compression-head comprising an abutment and a feeding-neck, and an opposing plunger having an unvarying range of .movement regardless of the pressure of the material acted upon.

2. In a ress of the character described, a normally 1 'ed compresslon-he'ad comprising an abutment and a feeding-neck, and an opposing plunger having an unvarying range of movement regardless of the pressure of the material acted upon, and means to aline said plunger first with-the feedmg-neck and thereafter with the abutment.

3. In a ress of the character described, a

normally fixed compression-head comprising an abutment and a feeding-neck, and an opposing plunger having an unvarying range of movement regardless of the pressure of the material acted upon and means for reciproeating said plunger transversely to the line of said range of movement.

4. In a press of the character described, a compression-head comprising ing plunger having an unvarying range of movement regardless of the pressure of the material acted upon, means for alining said plunger firstwith the feeding-neck and thereafter with the abutment, meansfor retracting said plunger just sufficiently to release the material from pressure and means to thereafter impart an ejecting movement to said plunger.

5. In a press of the character described, a normally fixed compression-head comprising an abutment and a feeding-neck, means for heating the material in said neck, an opposing plunger having an unvarying range of movement regardless of the pressure of the materialacted upon, means for alining said plunger first With the feeding-neck and thereafter with the abutment, means for retracting said plunger just sufliciently to release the material from pressure .and means to thereafter impart an ejecting movement to said plunger.

1 6. a ress of the character described, a normally ed compression-head comprising an abutment and a feeding-neck, an opposing plunger having an unvarying range of moveinent regardless of the pressure of the material acted upon, means for alining said plunger first with the feeding-neck and thereafter with the abutment, means for retractsaid plunger just sufficiently to release the material from pressure, and a latch to hold said plunger in said retracted position.

7. In a ress of the character described, a normally ed compression-head comprising an abutment and a feeding-neck, ano posing plunger having an unvarying range of move-. ment regardless of the pressure of the material acted upon, means for alining said plunger first with the feeding-neck and therealfterwith the abutment, means for retracting said plunger just sufficiently to "release the material from pressure and adjustable means to hold said plunger in said retracted position.

8. In a ress of the character described, a

normally ed compression-head comprising an abutment and a feedmg-nieck, an opposing plunger having an unvarying range of movegment regardless of the pressure of the material j acted upon, means for alining said plunger first with said neck and then with said abutment and ositive pressure means connected with saicf head and adapted to maintain a maximum uniform pressure throughout the pressing action.

V 9. A press of the character described, comprising means to compress a body normally to given dimensions irrespective of the pressure required therefor, and pressure-means connected therewith and adapted to maintain a maximum uniform pressure throughout the pressing action.

10. A press ofthe character described, comprising means to compress a bodv normally to given dimensions, irrespective of the pressure required therefor, and fluid-pressure means connected therewith and adapted to maintain a maximum uniform pressure throughout the pressingaction.

11. A press of the character described, comprisingfa compression-head having an abutment and afeeding-nck and means to compress abody against said abutment to given dimensions irrespective of the pressure required therefor.

12. In a press of thecharacter described, a

compression-head comprising an abutment, a feeding-neck and means to heat material supplied thereto, and means to compress a body'against said abutment to given dimensions irrespective of the pressure required therefor.

13. In a press of the character described, a.

compression-head comprising an abutment and a feeding-neck and. means to compress a 1 5 body against said abutment to given dimensions irrespective of the pressure required therefor and including a plunger having an 15. In a press of the character described, a

compression-head comprising an abutment and a feeding-neck and means to compress a body against said abutment to given dimensions irrespective of the pressure required and including a plunger having an unvarying range of movement, and positive fluid-pressure means connected with said head and adapted to maintain a maximum uniform pressure throughout the pressing action.

16. In a press of the character described, a

compression-head, a lever opposed thereto, connections between said lever and said head, and livefluid-pressure means operatively connected to said lever.

17. In a press of the character described, a compression-head, a lever opposed thereto, connections between said lever and said head, live-fluid-pressure means operatively connected to said lever and a plunger having an unvarying range' of movement and cooperating with said head.

18. In a press of the character described, a

head comprising an abutment and a feedingneck, an opposed plunger having an unvarying range of movement, means to aline said plunger first with said neck and then with said abutment, a lever opposed to said head, connections between said lever and said head, and live-fluid-pressure means adapted to act upon said lever.

19. In a press of the. character described, a

head comprising an abutment and a feeding neck, an opposed plunger having an unvarying range of movement, means to aline said plunger first with said neck and then With said abutment, a lever opposed to said head, connections between said lever and said head, and means adapted to act upon said lever to maintain a maximum uniform pressure throughout the pressing action.

20. A press of the character described containing compression means and positive fluidpressure-controlling means therefor, said controlling means'comprising a cylinder and its contained piston and a trap-discharge for said cylinder.

21. A press of the character described conta ini ng compression me ans and fluid-pressurecontrolling means therefor, said contrpllmg means comprising a cylinder and its piston, and means to admit pressure to said cylinder said element said lever.

. pressure-fluid means to at one side of the piston open exhaust for the opposite end of said cylinder, and means to admit live pressure to said opposite end of said cylinder when desired.

22. A press of the character described, comprising means to compress a body normally to given dimensions irrespective of the pressure required therefor controlled means connected therewith and adapted to maintain a maximum uniform pressure throughout the pressing action.

23. Apress of the character described, comprising means to compress a body normally to given dimensions irrespective of the pressure required therefor and positive fluid-pressure-controlled means connected therewith and adapted to maintain a maximum uniform pressure throughout the pressing action.

24. A press of the character described, comprising a compression member having an unvarying range of movement, and an opposed pressure-receiving element having a positive fluid-pressure support adapted to maintain a maximum uniform pressure throughout the pressing action. g

25. Apress of the character'described, comprising compression means, a pressure-receiving member thereof at one side the press, a fluid pressure-controlled lever at the opposite side of said press and disconnected from said compression means, and connections between said p'ressure-receiving member and 26. A press of the character described, comprising compression means, a fulcrum element orming a part thereof, and an opposed connected fluid-pressure-controlled fulcrum element.

27 A press of the character described comprising a movable compression member and an opposed, normally stationary pressure-rei rmving element, and constantly-renewed normal position. I

V 28. Apress of the character described, comprising a movable mold-bearing carriage, a movable mold'member reciprocable in said carriage, and friction devices controlling the movements of said member.

29. A press of the character described com prising a movable mold-bearing carriage,a

reciprocatory mold element mounted in said carriage, means to move said mold element positively in onedirection, and means independent thereof controlling the movement of in an opposite direction.

30. In a press of the character described a reciprocatory mold-bearing carriage, means to reciprocate the same, and cushion means to assist the reciprocationsof said carriage.

31. A press of the character described, comrising a rectilinearly-r'eciprocable earing carriage,-

therein, normally and positive pressurehold said element in moldmeans to reciprocate the i said carriage to release said-catch means and same, a stop member, and springs arranged l to cooperate with opposite faces of said stop member and connected respectively with said i carriage.

32. A press of the character described, com prising a mold-bearing carriage, a movable i mold member re'ciprocable in and with relation to said caniage, means to impart compressing movement to said mold member, means to retract said mold member just sufficiently to release the material from pressure, and means to impart ejecting movement to said member.

33. A press of the character described, comprising a mold-bearing carriage, a movable mold member reciprocable in and with relation to said carriage, varying range of movement to said member, means just suficiently to means to impart ej member.

34. A press of the character described, comprising a mold-bearing carriage, a movable mold member reciprocable in and-with relation to said carriage, means to impart com pressing movement to said mold member, means to retract said mold member just sufficiently to release the pressure, a latch to hold said member in said retracted position, and

means to impart an ejecting movement to said member. I

35. A press of the character described, comprising a mold-bearing carriage, a movable mold member reciprocable in and with relation to said carriage, means to impart com pressing movement to said mold member, means to retract said mold member-just sufficiently to release the. ressure, means to engage and hold the mdld member in said retracted position, means to release said engaging and holding means by the reciprocation of the carriage, and means to impart ejecting movement to said mold member.

36. A press of the character described, comprising a mold-bearing carriage, a mold member movable in and with relation to'said arriage, means to move said member to compress a block, means to impart ejecting mold release the pressure, and ectmg movement to said to retract said moldmember means to impart an un the plunger to release the pressure upon the I material prior to the ejecting movement'o said plunger, and means controlled by the movement of the carriage to release'the mold member from said retracted position.

37. A press of the characteridescribed com rising a mold-bearing carriage, a mold mem- Ber movable in and with riage,

ress a block, means to impart further movement to said member to e ect a bloclr, means automatically to catch and hold'said memrelation to said carmeans to move said member to .com-

bar between said compressing and ejecting ositions, means controlled by movement of permit the return of said member, and means to adjust the effective operation of said catch means, thereby to adjust the position in which said member is held thereby.

38. A press of the character described com prising a reciprocable rectilinearly-movable mold bearing carriage, a transversely and rectilinearly reciprocable cross-head mounted in said carriage, a box-frame loosely enl l I i box slidably mounted in said box-frame.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

LOUIS N. MCCARTER. Witnesses:

W. B. BEYER, JNo. VVAGNER.

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