US910500A - Tunneling-machine. - Google Patents

Description

C. A. CASE. TUNNELINur MACHINE. APPLIGATION FILED JAN. 1s, 190s.

Patented J all. 2 6, 1909.

6 SHEETS-SHEET 1.

C. A. ASE. TUNNELINLMAGHINE. ABPLICATIQN FILED JAN.13, 190B.

91 0,500. Patented Jan. 26, 1909.

A. CASE. TUNNBLING MACHINE. APPLICATION rILED JANv 1a, 1908.

Patented Jan. 26, 1909.

6 SHEETS-'SHEET 3.

/ une 11 fo z m 35g tl'o'cnmlf I A l,

o. A. CAS3. TUN NELIN G` MACHINE. A'PPLIUATION FILED JAN,13,1908.

Patented Jan. 26, 1909.

6 SHEETS-SHEET 5.

G.A. CASE. TUNNELING MAGHINE. APPLIUATION FILED JAN. 1a, 190s.

Patented Jan. 26, 1909.

6 SHEETS-SHEET 6.

UNITED .srnfrss PAENT orrlon ,ontstaat-.oase ,or New YORK. N. Y-assIGNQR To @est TUNNEL@ ENGJNEERLNG '00M- PANX, O F NEWYORK, N. Y., A CQRIORAIION OF `AWRIHZOllA TERRITORY.

TUNNE LING-MACHINE.

Snpeocation of Letters Patent.

Patenten aan. ee, v1 ooo.

T0411? whom 'it may concer/n: 'iBe-it known that il, GHARL-Es A. Cess, a citizen ofthe United States, andfa'resident of the thorough of Manhattan, in the city and 6 countyof New York and State of New York, have invented a certain new and useful Tunneling-Maohine, .of which `the following is a speeioation. {[iliisfinvention relates torneans for disinte- 10 grating .rook and other materials, .by suddenly changingtheir temperature and then by concussion, hammering orfrasping effectingtheir disintegration.

locarryout the invention means are proyvided for 'heating yand suddenly cooling or chilling thematerial to be operatedupon and subjecting it to the foree of blows.

The invention is. exemplified in a tunneling machine, which may be constructed to dig tunnels of various cross-sections.

Figure -1 represents a longitudinal seetion of -a tunnel with a side elevationof a tunnelingmaohine exeniplifying the invention, Fig. 2 shows'a-planview of Fig. l, Fig. 3 is an end -view of Fig- 1,' Fig. 4 represents an enlarged portion of Fig. .1, Fig. shows-anenlarged artial section-ofiFig. g1 ontheline 5, 5, Fig.. 1s a. partial section of Fig. 4 on the line 6, 6, Fig. 7 is a par-tial .section of Fig. 6 on the line 7, 7, Fig. 8 represents a partial section of Fig.

V14 on the line .8, 8, Fig. 9 shows a partialsec- Ationof Fig. 4 on the line 9,l 9, Fig. 1() represents a viewsimilar-to Fig. /lvwith a modification, Figc. 11 is -a partial section similar to Fig. 5 showing the modification of F ig..10, and Fig. 12 is a partial top view of Fig. 11 partly in section.

Referring to the drawings a tunneling maehine with the invention is represented ine tunnel 20, and consists essentially of a power truck 21, a hammer truck 185 and appurtenances connecting the same. Means are shown for heating,` and cooling,r the roek or other material to he disintrjsj'rnled with the blows of the` hammers ol' the hammer truck. (larhonsl'or electri(l arcs are` shownesheating means, but petroleum lamps, ras jets or other heatingl applirtennm-.os may he used. Streams of water are deseribed l'or (-.oolng means, but refrigerated nir, liquid :drol-other refrigerante may -.be employer l.

The power truck 21 comprises the pairs of 'lower :side sills 22 mounted with the trunk l .vllflels 23ltl1atlmvie'the axles 24 and run on l the tracks 30. .Flooring 25 covers the sills 22 and vertical ,parts 2G, 27 as also the inclined braces 28 extend up Vfromsaid sills. The post and said braces support the-pairsof upper side sills 29. To the posts 2,7 are journaled ,theupper guide- rollers 35, 36 and the lower guide rollers 37, 38. The `guide rollers 86 `and 38 have grooves 39Lin-tl1eir cylindrical surfaces. .In the posts 26 are jonrnaled the upper guide rollers 40, :upper feeding pinions 41, the lower guide rollers 42 and lower feeding pinions 43. Between the upper guide rollers 35, 36 the upper guide rollers 4U and .upper feeding pinions 41 are supported thehollow feed arms 34, .4.4, and feed arms 45, 46 are supported `between the lower guide rollers 37 38, lower guide rollers 42 and the lower feeding pinons 43. A pair of conductors 53Y extend from `main feed wires 54 for conducting an elec-trie eurrent'to' themotor 47. The motor 47 is supported on the platform 25, its armature shaftsnpporting a pulley .48, which by means ofthe belt .49 is oonneotedto the pulley 50, fastened-on the shaft 51, Whieh latter is journalerl 4in journalibraekets 52.secured tothe inner upper sills 29. @(Dn the shaft 51 is fastened the pinion 55 the teeth of which mesh with-the teeth of the spur gear 5G fastened to .the shaft 57 jon-rnaled in journal Ibrackets 58 that are supported on the inner upper sills 2E). .()n the shaft 57 are jonrnaled the vertical bevel gears 59, 60 that eaohinesll with the horizontal bevel gear ,Glfastened to rthe worin shaft 62. A elnteh 63 en ages a spline on the shaft 57 and is connecte( to a lever 64 that is fnleruined on apin 65 extending` from a bracket 66 fastened to one ol' thesills 29.

The worm snalt 62 carries the upper Worin 67 and lower Worin 68, .which respeetivelr mesh with the upper Worm wheel (lll fastened to the shaft 70 and the lower Worm wheel 71 fastened to the shalt 72. 0n the shaft 57 are fastened the bevel gears 75 each oll which ,gears with a bevel 4`efear `'76, fastened to the i the horizontal bevel gears 80, 87. In the 90, 91 and the feed arms 34, 44, 45, 40 have racks 88 formed with their outer sul'- faces which mesh with the teeth of feeding,r pinions 41,43.

The shaft 90 carries the bevel gear 92 that gears with the bevel gear 80, and the carries the bevel gear 93 that `gears with thc bevel gear 87. Journal brackets 95, 90 are carried res ectively on the feed arms 34 and 44. rl he liracket 95 supports one of the gears 81, the shafts 84 and 00, and the bracket 90 supports the other bevel gear 81, the vertical shaft 85 and the horizontal shaft 91. At the lower end of the vertical shaft 85 is fastened the spur gear 100, which gears with the spur gear 101 journaled on a shaft 102, supported in the bracket 103 fastened to the end of the feed arms 46 'lhe bracket 103 also supports the lower end of the vertical shaft 85, and one end of a supportingr bar 105 in which latter are journnled spinh dles 106 that carry the overlap )ing` circular con veyel disks 107 l he spindles 100 carry sprocket chain wheels 108 that are engaged by the sprocket chain 109. rlhe latter is driven by a sprocket chain wheel 110 fastened to the shaft 102. rl he other end of the supporting bar 105 is fastened to lugs 130 of a cross brace 140 to be explained. Scrapers fastened to the bar 105 are located over the disks 107 and disks 173 to be described.

On the shaft 51 is fastened a pulley 115, which by means of the belt 110 is Connected to the ulley 117 fastened to the upper elevator s :aft 118. 'lhe elevator shaft 118 is journaled in the journal brackets 119 su ported on thc inner upper sills 29. To t 1e Inner lower sills 22 are fastened brackets A12() in which is journaled the lower elevator shaft 121. 'l he shafts 1.18 and 121, carry the elevater wheels 122 for the elevator with the buckets 123. A hopper 125 is fastened to one of the braces 28 and is located to receive the discharge from the said elevator. 0n cach pair of upper lsills 29 are located crosssills that support screw jacks 131, which bear up against the ceiling of the tunnel 2() and keep the driving truck in place when op eratingr with'the hammer truck.

The hammer truck comprises the crossbrace with split bearings having the jaws 141 and lugs 130. Axle fpins 142 extend from the cross brace 14.0 lor the truck wheels 143. (.olumns 144 are supported on the bearings of the cross brace 140, and are connected by the horizontal cross braces 145,

146, 147, 148, 149, and 151, and have clamped thereto by means'of the bolts 132 the brackets 133 that support the feed arms l 34, 44, 45, 46. ine cross bars 145 t0 151 have each formed therewithV Journal bearings with the ca s 152. 'The cross `braces 145, 146 support m their bearings ha ving-the caps l 152 the hollow bearings 153 of the hammer feed arms 34, 44 are journaled the shafts frame 160. A hammer frame 161 has the lhollow bearings 102, 103 which latter are supported in the bearings having the caps 152 of the cross-braces 147, 148.

.A hammer frame 104 has the hollow bearings 105, 100 which are supported in the bearings havinglr the caps 152 of the crossbrace 149, 150. A hammer frame 107 has the hollow bearings 108, 109 which are re- .spec-.lively supported in the bearings having' t 1e caps 152 o1 the cross-ln'ares 151 and 140. A vertical cam shaft is supported in the hollow bearings of the said hannner fr mes and is held from vertical displacement by means of the collar 171. l he shaft 170 carries the cams 172 and large conveyor disk 173. 1n the hammer frames 100, |01, 101, 107 are supported the hammer spindles 175 170 to allow the cam shaft 170 to pass therethrough. llach hammer spindle 175 has fastened thereon a collar 177, and a. springr |78 bears between lsaid collar 1T" und a boss 179 formed with each oll said hammer frames. y'l o the hammer spindles |75 are fastened the hammer supports 180 to which are fastened the hammers 181. 'lhe hammer frames are muerted by the brackets 182.

Between the crossbraccs 148,140 there is located around the shaft 170 the hollow boss with the jaws 180, that engage with the similar jaws formed with the hollow bearings 103 and 105 of the hammer frames 101, 104. With the hollow boss 185 is formed the Wormwheel sector 187 having the stops 188, 189 extending from its upper face.

Un the shaft 9.1 is fastened the chain wheel 190 that carries the sprocket chain 191, and the latter engages a sprocket chain Wheel 192 carried on a spindle 193 journaled in a journal bracket 194 extending up from the cross-brace 149. Journal brackets 200, 201, 202 are formed vwith the cross-brace 14.9 and sup ort the horizore tal worm shaft 203. 0n t 1e latter shaft are lournaled the bevel gears 204, 205 which gear with thc bevel gear 200 fastened to the spindle 193. A worm 207 is formed on the worm shaft 203 and meshes with the worm wheel sector 187. Secondary brackets 208, 20!) extend respectively from the cross-brace 140 and the bracket 201. A shifter rod 210 is supported in the said secondary brackets, and has the ends 211, 212 at rig-ht angles to the body thereof. The end 211 is in the path of the stops 188, 189, and to the end 212 is secured a jaw clutch 214 that can lnove on l a spline connected to the Worm shaft 203.

0n the shaft 90 is fastened s .spreclset chain wheel 220 which is connected to. a second sprocket chain Wheel 221 by means of the sprocket chain 222. The cross-brace 147 has formed therewith a journal bracket sprocket each of which have formed therewith a loop y 223 in which is journaled the spindle 224, that carries the sprocket chain wheel 221, and also the bevel gear 22 The gear 225 gears nith a bevel gear 226 fastened to the shaft 170. A spur gear 227 fastened to the shaft 170 gears with the spur gear 228, 'ournaled on a pin 229 extending from a oss '230 formed with the hammer frame 161.. From the boss 230 extend the journal brackets 231, 232 which carry the spindle 233. Abevelgear 23S on the spindle 233 meshes with the bevel gear 239 that is fastened to the spur gear 22 I 233 are fastened the disks 240, 241, from which latter extend pins 242, 243 that carry the links 2411, 245. The lower ends of said links are pinned to the arms 246, 247 which are fulcrumed on pins 248 extending from the hammer frame 161. The outer ends of the arms 246, 247 are pinned to the links 250, 251 which in turn are pinned to the cross-heads 252, and to the latter are fastened the receptacles 254 for holding the heateis With cal-bons 255. Conductors 520 conduct electric current .f rom the main conductors 53 to the earbons 255. The crossheads 252 move on the vertical guide rods 250 that are fastened to the brackets 257 extending from the hammer frames. The cross heads 252 are connected by links 258. To the hammer frame 160 is secured the bracket 260 which supports the nozzle end 261 of a hose 262 and which is adjacent to upper most ham mer.

To operate the invention and referring `4first to Fig. lthe apparatus is shown in position after the hammer truck 135 has .moved to the end of its forward stroke. Next the screw jacks 131 are lowered and thc driving truck 21 is moved forward or to the right on the tracks 30, after which the said Vscrew jacks are again placed in position to securely hold the driving truck 21 in place. The motor 47 is thon` started and rotates the pul- ,ley 48 whieh comnmnieates its rotation to the pulleyr 50 on the shaft 51. The pinion rotates nith the shaft 51. and its teeth meshing with the teeth of the gear 50 rotates the shaft 57, which loosely supporting the bevel gears 50, 00 communicates rotation to either one, depending upon the locution of the clutch 63, the latter being moved to en-` gage either one of said bevel gears 50 and 00 by means of the handle 641. Either ofthe bevel Years 59 and 00 can. communicate its rotations to the horizontal bevel gear 61 which is fastened to the 'worm shaft 02, so as to rotate the latter.

`."Vhen the drivingr lruvk 2| and hammer truek 13V are odian-nt lo nach other, the worm shaft lll? is rotated to push forward the :mid hammer frurlf., which is :irromplirhrd by tle norms (S7, WQ, rotnlinr; ile Worm wheels V0 and 71. 'hen tte latter Wheels rotate the feeding piniuns l1l and L'1.1

0n the spindle meshing with the racks 8S on the feed arms 34 to 46 push forward the hammer truck with its appurtenances. 'lhe rotations of the shaft 57 by means of the bevel gears 75, 70 are communicated to the shafts 77, which latter rotate the. bevel gears 81 and therewith the vertical shafts 84, 85. 'l he shaft S4 through the bevel gears 80 and 92 rotates the horizontal shaft 90. rI he shaft S5 through the bevel gears 87 and 93 rotates the horizontal shaft 91. The vertical shaft 85 throu l1 the spur gears 100, 101 rotates the verlies shaft 102 having the sprocket chain Wheel 110, and the latter by means of the sproeket chain 109 rotates the sprotket wheels 108 on the spindles 106 of the conveyer disks 107. The shaft 51 by means of the pulley 115 and belt 116 rotates the upper elevator shaft 118, and thereby the upper elevator Wheel 122 and consequently the elevator with the buckets 123. The horizontal sha ft 90 by means of the sprocket Wheel 220, sprocket chain 222 and sprocket chain wheel 221 rotates the spindle 224. The latter carries the bevel gear 225 that rotates the horizontal bevel gear 226 with the vertical shaft 170. Cams 172 on the shaft 170 bear against the collars 177 during a portion of each rotation of the vertical shaft 170, and thereby Compress the springs 178. During the intervals that the cams 172 are free from the collars 177 the springs 17S again assume their normal lengt] s. 'lhe Compression of the springs axially moves the hammer spindles 175 in one direction, and when they are again extended move the said spindles in an opposite direction, by virtue of .vhirh the hammers 181 are rei'iproeated. The hammers strike against the rock or other material operated upon. The shaft 170 alsd rotates the large conveyor disk 173.

The horizontal shaft 91 n ith the sprocket chain wheel 100, sprocket chain 191 and sprocket chain Wheel 192 rotates the spindle 193, which latter through the bevel gear 206 communicates rotation to both the bevel gears 204 and 205. The jaw clutch 214 on the worm shaft 203 can be locked with either one of the latter bevel gears, rotating the worm shaft in opposite dirertiors. 'l'he worm shaft 203 oseillatrs the worm sertor 187 in one direetion until the end 211 engages with one of the stops 188 or 189. ln Figl 9 the stop 188 will first come in eontaet with the end 211 and throw the clutch 214 into engagement with the clutch on the bevel gear 205, whieh will reverse the rotation of the worin shaft 20S until tle stop W9 mines into Contact with the said end 211. 'llw reversals of the norm sector 1ST are transe mitted to the hollow ltr-urines H', 11'5 of the hammer frauws 111| and |04, and the latter being in eonneelion with all il e other hammer frames, are eonsonuenf lv swung and reversed against the rock while they are striking blows.

...-)rJ latter rotates the disks 240, l..

ost'illatvh` the arm 1147, n hit-h latter by means ol the link 251 rveiproeatva the linh 2:15' that is eonneeted with one line of eross-head 251..

|l`he dial( 2 lll moves the link .244 whit-h ostillates the arm 2413 n'hivh with they link .250 reeiproeates the other linli 25N and nonsei|uently the other line of Pross-heads 2511. 'lhe erosie-herida 25;* heine in eonueetion with the reeeptin-ies '54 holding the heating appurtenanees, in thi ease carbone, :are vertically reeinrr Iated against the roeh n'hile the hammers are in operation.

The alternate heatingr and eooling olI the roel( Innles it brittle, und the liloney 'of the hammers disintegrate the hrittle portions of said roek whieh l'all on the large Conveyor disk 173 of the hammer trut-li from which thev are tulien hy the f-onrvyvr disks 10T', am from the latter are elevated by thv elevator and disvhargvd into the hopper 125, und from whit-h latter the) are loaded in antV forni of rerentarlo to he taken away;

ln Figa. 1t! to 1; nliirh rvnrvsvift a monili nrtion ol the upper portion ol' thi` hammer trut-li there is shun n a eroes-hrnee IUll, havint: the .eplit Sleeves W1 that arevlnmnetl to the eollnnns lll hv n|van ol holla` 302 [nut-1|- ing the lugs tl'l. With thv erosa--lniu-v Blttl are formed the journal hraeltvtev Illl having the bearings Zl' l'or the Spinelli ittt. ln one of the, ln'arltets 21011 is formed the hear-` ing 307 for the spindle 131th. rl he rroasdn'nt'e 3U() also enrriva the journal hearings tltl lor the shalt 31). 0n one of the apinnlvs .'utlt'i is jonrnzled thespur fearii t5 the tvet l1 :il n hit-h mesh n ith the teet 1 of thv Spin' gear Ill'i snp ported on the slpindle 308. fl he spur gear 316 gears with t Le spur lgem' S17 fastened to the shaft 310. A hevel fear 31S fastened to the Shaft 310 gears with the `lievel gear 311) that is jonrnalvd on the pin ILl) aveurvd in the bracket 321 fastened to thv eror -hravv 3110. A Sln'orhet vlmin n hvvl JlL'L i lnalvnvrl to the bevel gent' Jill, and hy nivaus ol' the sprovlvt ehain 'i325 in eonnevtvtl ith a sprocket chain ht-vl il." fastened lo thv hortzontal shalt .ll.l

A hammer trame Zltl hrw the emmer-ting side ehevhn 223 ,lrltgrilvana of n hivh it ia sun ported on lhv spindh- Linn'. .t lwvvl j ear 2532 is faatenvd to the anni' gear Ztl-. and thv teeth thereol` mesh n ith the tvvt la oi the hvvel f gear Iil Iiournalvtl on a pin Iti vriendin;l

from the top nivniher ot' thv hannnvr I'ranie 33t). A spur gear :Siti Ia lastvnvd to thv hevel gear 333 and gean'r n ith :t sinn gear Itt fastened to thv earn spindle 3;57, journalvd in the hummer lrameittt. tlnthenin :34 iel'ulerunietl the bracket 310 lo n'hitfh is bolted the g rlhe rotntions o1 the dish 241 more the hul; 245 n'hieh rece taele341 that carries the heating means. ln t te braelret Mtl is formed im elongated slot 342 which engages nith a pin 343, extending from the top face of the spur gear 336. 1n the trame 33t] is snpportett a hammer Spindle 3J() lQimilar to the hammer spin-d t ltlt 172'). t fastened the rants 3.31` similar to 17:2, and on l thevnd ol the hammer spindleth'il'lie fastened a segmental hammer support 3.5L! to which latter are l'iistened the eegniental hammers 353i To the feed a rm 34 is ehnnped the bracket 133 whieh supports the hraelret 45Nr that earries the pin llo() engaging nith an elongated openintr 4U() in the lever 4t1. A link 470 eonnet't` the other end ol' the lever 461 with the hammer frame 3150. On the said bracket, is also holted the journal brochet 462 for the spindlel lti earrying the sprocket chain heel 464 nith which is engaged the sprocket elmin 465, and the latter engages with a sprovketz vhain-wheel 466 on the horizontal `malt .ttl. ln the lever 401 is formed an elongated slot 16T nhieh engages with a pin 40S extending from a disk 469 supported on the Spindle 463.

'lhe object of the described modification i i l (')n the earn spindle Q37 there are mode ot' operation is as follows: 'l`o give, m0- i tion to the hammers 353 and their appurtenance` the Spreu-liet chain 322i transmits rol tation from the horizontal lhalt nl to the Aapinclle Still, the rotation ol nhivh lutter is tonnnunitated lo the spindle 31.11. The. `apinitle 31] throng-h the train ol gears 317, Jlti and 2115 rotate` the hvrel near 3132, thetvvth ol' the latter :melting n ith. the teeth of thv hvvvl gear ."il, rotate` thv spnrgenr 335, nhieh latter hy nivnns oll thv spur gear 336 rotate` thv am Aanindle 23%?, and there is mer 'spindle 35H ith the segmental hamlners $53. While the hammers. are ret'iproeating,r the rveentavlv 341, `with the heating nl ani is oneillaeil or swung by the netion of tht` pin H3 ith thv brat-liet 3140. 'The hammer l'raniv itn it h the hammvrn and appurtvnanees is swung on the spindles 306, by rirtnviol the horizontal lutlt .ll.) through the .a roi-het t-hain nheel hilt, ehain 465 und t min heil `ttl rotating the s iindle 463. 'lhe latter s iin-lle rotnlv` the chal( 469 the pin 16S of livh engaging; the elonga ted Slot' ll ostillutea thv lvvvr 401, rind which lln'oughthv linlt `lTtl :wings or oseillates the l lunnnler trame illll in a Yvrtitai plane.

lt is evident that nilh slight modifications tunnels van hv dug nith the hamm'rs ol the niarhinv Metillatinff in either horizontal. vertieal or inrflined planea.

Having deavrihed my invention I elaim:

1. ln a niaehino the Combination of moans to heat n material, meerA to chill said material, the heating and chilling alternating is to forni an "relied-roofed tunnel, and its` Cif With each other and ineens to strike blows against Seid materiel to disintegrate the seme.

2. In a. machine the Combination. ol movn able ineens to lient e nntteihil, menne to chill the materiel, the heating :ind chilling: :iltvri Hating .iith rech other, end nioviiliisi moe. to strike iiiovts :igaiinet seid iinitoriul io lisintegriite the saine.

3. In n machine the eoniliimition oi iiieiint` to heet e iniitei'iiil, inerme to Chill the inn.- teriitl, the heating :ind chillingr elteriniting with cach other, :t hummer truck in tl e inzieliine, n heinnior oi. sind truck, ineens to more mid hfiinn'ior over the surface of Said materiel, ineens; to reciprocate the` hammer to strike 'filone against said materiel to disintegrate the Haino.

4. In :t nini-linie the combination of niovalile ineens: to lient :i iiizitoriiil, moans to chill the iiiiitfirifil, the heating sind chilling filterneting n ith oiieh other, a hinnincivtrncli in the miii'hino, :i lnnniner on seid truck, ineens to nieve :seid lisiinnier over the fiiii'fnco oi the said nnitcriel, sind ineens to reciprocate the hmniiicr to strike lilows iigziinst Seid iiinteriiil to disintegrate the Seine.

5. ln e machine the combination of ineens to heet e materiel, means to chill the nie tcrial, the heating und chilling alternating with erich other, a hammer truck iii the inzichinc, a hammer freine on thc truck, ineens to sin ing sind ironie, e herinner rinpliortod liy inennis of Seid traine, end iiiiznie to reciprocate the herinner to strike lilowf; iigeiinit the materiel to d irrintegrritc the sinne.

(i. In a machine thil coniliiinition ol' roeipinenting Ineens to lient @i inittcriil, ineens to l chill the material, the heet-ing :ind chilling; alternating ii ith finch other, e heiiin'icr ti'nrliY in the machine, lniinnier l'iziiuies. on the truck, mesme to :ming Seid fiiniies, :i lniniiner snpportcd liy nach freine, mid iiirani to nii-iproestto erich liztinnier to fiirilro blocs :ignini-:t Suid materia-il to dieiiitograitc thix sanno.

7. In n. tunneling.; inneliino thi` i-oaiiliiim tion of ioriiirocsiing; iin-:inel to liiiiit :i nifiteriiil, ineens to chill tho ii'izttiiriol, llii- .ineting und chillingr :'iliviiniing 'with rin-.li other.

:i liiiinnier triicli in the nnirhino, hziiiiiiior Treinen on the truck, r'oiinortioiirs lieti-wen tho i l'inniei nir-nini io ning siiiil linnn-n, it li:|.iii nier riiiiiidlo :iiiiiiiortod on iznh lirioinior freine, :i liztiiiiiier ronnf-,ctoil v, ith wirli spindle, vind iiniziiis to imiiprorzitimn'li lininli'ier Spindle und thereby strike lilows nirgninnt the niiifeiizil with they liiiniiiiorn to diz-intogrnte the iiniteriiil.

8. [n i tunneling iiinchine the eoniliiniition ol n herinner truck, i'eoipromiting ineens; On the truck to lient the siirl'iiro of rovi operated upon, means to chill the roch, the heating and chilling,r alternating with nach other, Ineens to move the truck, ii plurality of hammer frames supported on seid truck,

l connections between sind freinet, n hummer i spindle Supported on meh lieniiiioi' l'rnine, a, i haiinnioi connected ii ith ciioii spindle, moans to sir-'ing the lniiiiiiier iremos ith their apiinrimninms, sind o1 lier means to reciprocate thv hiiiniiier epindleI with their hammers to rti'ilii lilows :igniiisit the rock to difiintigrnte the seine.

ti. In :i tunneling nnichiiio the coinliination ol ineens to heet the nnilerial operated upon, ineens: to chill sind ineteriul, the heatinf; und chilling alternating ii ith nach other, ai. hummer truck in the machine, lizinimer frames on the truck, ineens to swing Iseid l'rmiios, reciprocating herinner spindles cerried on the frames, hammers on said spindles to strike blows against the said materiel to disintegrate the sinne, and ineens to take may the material after having been disintegrzitcd.

10. The combination in n tunneling Inachinc of ineens to heilt the materiel opcrated upon, ineens` to chill seid materiel, the heeting mid chilling alternating Frith each other, n liminncr truck in the machine, hammer lrmnes on the truck, ineens to swing seid frames, reciprocating hammer spindles Carried by the friir'nes, hammers on sind spindles to strike blows 'against the material to disintegrete the' same, e rotary shaft supported in the truck and a conveyor connected with said shaft.

11. In :i tunneling machine the combina.- tioii of n power trnrk :ind it hammer trurl, feel nriiis coiincrting the power truck and laiiiiiniei' trin'k, rin-lts extendingY from some of the i'oiil firms, :ind feeding pinioiis yonriieled on the` power truck rearing with siiid racks, iwii'iiociiting linniii'ierei on tiie h-.iniinor truck, reciprocating heating nicnis :iiljfiecnt to lin liftiiiii'iers, cooiingf ineens on the hemincr frm-iz, rot-airy Shafts connecting the power trneli end herinner truck, connrctionei between seid rotiiry shzifts end` seid heiiiiners :mil limiting meting.

11.. [n :i tunneling ininliiiic the combina.- tion of zi, power trui-k und :i hammer truck, i-=l :ti-nie extending from the lniininor truck to the power ti'iivk, riiike extending l`roiii .the l l hind iti'ins, lending pinioiiri on the power truck iiiwiiiiiigf nitli seid ran-he, :i gilliriility of lininnier l'riiinos l'iih-riiinerl in the l'iiiiniiier truck, 'gwonoeivtions tzt-innen the l'i'iinies, :i rotary l .-iinl't ixtliiiliiiy; i'roin the power truck tothe l liztiiiiiiir lim-li, :i worin :siniit on thc letter l liiirli. minet-tions liotwecii thc rotin-y slinft l :ind [lic worin shaft, inciins to reverse the i direction of rotation of the ivoini slizift, n l worin wheel scrtor fiilrruniod in the lnniiincr lfrnrli meshing with the worin slnil't, ii recipi Vomiting lnimiiier supported on each hummer ironie, and movitlilc inenting means adjacent l to ciieh hiimn'ier ii'iiiiic.

iii. in n tunnelingr machine the ('oinliiniil tion ol e power truck and n liaininer truck,

feed arms extendin from the hammer truck to the power truc to move the hammer truck, a rotary shaft extendin from the ower truck to the hammer truc swinging iiammer frames on the hammer truck, a reciprocating hammer on each hammer frame, Uuide rods connected. with the hannner frames, cross-heads on the guide rods, heating means connected n ith the cross-heads, a spindle journaled on one of the hammer frames, connections between said spindle and said rotary shaft, a disk on said spindle and linked connections between said disk and one of said cross-heads to reciprocate the latter. 14. In a tunneling machine the combination of a power truck and a hammer truck, reciprocating swinging hammers and reciprocating swinging heating means on the hammer truck, chilling means connected with the hammer truck, a conveyor extending between the trucks and means to operate the eonveyer.

l5. In a tunnelingr machine the combination of a power truck and a hammer truck, feed arms fastened to the hammer truck and guided on the power truck, a source of lower carried by the power truck, means between said source of power' and the feed arms to move the same relatively to the power truck, a pair of rotary slidahly supported shafts on the power truck, swinging reciprocating hammers on the hammer truck actuated by one of said rotary shafts, swinging reciprocating heating means on the hammer truck actuated hy the other of said rotary shafts, and connections between said rotary shafts and said source of power.

16. In a tunneling machine the combina tion-of a power truck and a hammer truck, a pair of hollow feed arms fastened to the hammer truck and guided in the power' truck, a y

rotary shaft supported in cach feed arm, a motor on the power truck, connections between said motor and each feed arm to move i the hammer truck, connections between sani motor and each of said rotary shafts, swinging reciprocating hammers on the hammer truck. connections between the hammers and one of the said rotary shafts, swinging ren ciprocating heating means on the hammer truck, and connections between. said means and the other rotary shaft.

1T. In a tunneling machine the combination of a power truck and a hammer truck,

i l l horizontally swinging hammer frames on' the hammer truck, horizontally reciprocatY ing hammers in the hammer frames, connections between the hammer frames and the reciprocating hammers with the said motor, vertically reciprocating heating means i on the hammer truck, and connor-tions between the latter means and the said motor.

18. In a tunneling machine the combination of a hammer truck, a hammer frame fulerumed on said truck, means to oscillate the hammer frame about a vertical axis, a reciprocating hammer on the said hammer frame, heating means on the hammer frame and means to oscillate said heating means relatively to said hammer frame.

19. In a tunneling machine the combina` tion of a pow er truck and a hammer truck, feed arms fastened to the hammer truck and guided on the power truck, a source of power on the power truck, connections between the source of power and the feed arms to move the hammer truck relatively to the power truck, rotating c'onveyer disks and Scrapers extending from the hammer truck to the power truck, and connections bet een the source of power and said disks.

20. In a tunneling machine the combination of a power truck and a hammer truck, means to move the hammer truck relative-liT i to the power truck, a rotary vertical shaft l l l l ,iournaled on the hammer truck, a large conveyer disk secured to the vertical shaft below the hammer truck., a scraper above said large conveyer disk, a plurality .of overlapping conveyer disks below @tween the said trucks, Scrapers over the said overlapping disks and one of the latter under the large conveyor' disk, reciprocating hammers carried on the `hammer truck, and heating means carried on the hammer truck. Signed at the borough of Manhattan, in the county of New York and State of New York Ythis 8th day of January, A. l). 19H5.

CHARLILS A. CASE. Witnesses:

ARTHUR MARION, M. H. Coon.

and extending'

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