US1414589A

US1414589A - Method and apparatus for perforating metal shapes

Info

Publication number: US1414589A
Application number: US261346A
Authority: US
Inventors: Elmer S Seavey
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-11-06
Filing date: 1918-11-06
Publication date: 1922-05-02
Anticipated expiration: 1939-05-02

Description

E. S. SEAVEY.

mamon Ann APPARATUS Foa PERFORMING METAL sHAPEs.

'APPLICATION HLED NOV. 6.1918- Patented May 2, 1922.

5 SHEETS-SHN.

AA .AAA WTA Ls. sEAvEY, .METHOD AND APPARATUS FOR PERFORATING METAL SHAFE'S.

5 SHEETS SHEET Z.

APPIEICATON FILED NOV. 6| T918.

Patented May 2 TIT Hun Ail TAIA uw l n, Nw e NR NSNN f Num Patented May 2, i922.

J SHEETS-SHLEI 3 E. S. SEAVEY. Mmmm AND APPARMHS FOR PERFORANNG METAL SHAPES.

APPLICATJON FILED NOV.6|1918.

E. S. SEAVEY. APPARATUS FOR PERFORATTNG METAL SHA APPLlcATloN FILED Nov. 6. 1918.

PES.

METHOD AND SHEETSHSH'LE! 4l Patented May 2, 1922..

EN@ @A E. S. SEAVEY. METHOD AND APPARATUS PoR PERPORATTNG METAL SHARES.

APPLICATION FILED NOV. 6,11918. y

Patented. May 2, 1922.

UNITED srAras '.EIJIMIEB. S. SEAVEY, OF JOHNSTOWN, PENNSYLVANIA.

- METHOD Ann APPARATUS non' PERFORMING METAL snArns.

Specification of Letters Patent.

Patented May ei'p'ieae.-

Application led 'November 6, 1918. Serial No. 261,346.y

To all whom t may concern.'

Be it known that I ELMER S. SEAvEY, a citizen ofthe United States, and residing in the city'of Johnstown, .in the countyl of Cambria and State of Pennsylvania, ave invented certain new and useful Improvements in Methods and Apparatus for Perforating Metal Shapes; and I do hereby declare the following to be a full, clear, exact description of the invention, such as will enable others skilled in the art to which it a pertains tomake and use the same.

y invention relates to perforating rolled metal shapes, such as railway4 rails, angles, Ibeams, channels, flats, rounds and the like, and is more especially adapted for the perforation of railway rails, just after they have been rolled and hot sawed and while still in a red hot or heated condition.

Heretofore it has" been customary after a railway rail bar leaves' the final or finishing roll pass for it to be received ona roller feed table at the side of which it is held stationary for a few seconds and cut into the desired lengths by means of rotary hot saws. After having cut the railway rail bar into the desired lengths the rails. are conveyed to a hot-bed to cool. After cooling, the ends of the rails are chipped or milled to remove the burred edges of the bar caused by hotsawing, and the rails are then conveyed to a drill press where holes are .drilled near the ends of each rail, through which the rail splicing joint bolts pass when the ends of the rails are spliced together to form a rail# way track.

The above manner of finishing therails requires considerable handling and loss of time and labor, and it is thel object of my invention to reduce the time and labor required to finish a railway rail section and thereby reduce thel cost of production.

An object of my invention is to provide a method and means whereby the drills are advanced and retracted quickly and at the.

same time the drills are rotated at high speed, to prevent tearingof the metal as the drills pass through the bar being drilled.

Another object of my invention relates to controlling the speed of the forward movement of the drills during the drilling operation, whereby the drills may be advanced very quickly, as is required when drilling hot rolled bars, to prevent the drills from losing their temper, or comparatively slow when cold bars are drilled.

- mounted.

and

A further oby'ect` of my invention relates to automatica ly retracting the drills quickly, at the completion of thel drilling operation.

to advancing by fluid pressure the, carriage upon vwhlch the spindle A further object of my invention relates bearings "are y l to the manner I have of adjusting the spin.- dle bearings' and means for holding the gearing always in mesh, regardless of Ithe lateral spaclng of the spindles .and bearings. I,

' Another object of my invention is the manner I have of clamping and releasing y the bar to be drilled simultaneously with the advanclng or retracting carriage, and a y still furtherobject of my invention relates tothe. manner I' have of cooling the drills ,at the completion of the drilling operation.

Other objects of my invention will appear hereinafter; l

Havlng thus given a general description of. my invention, Il will now, in order to make the same more clear, refer to the accompanying five sheets of drawings in which like characters of references indicate like parts y Figure 1 is a top plan' view of one form of my improved machine, the rail being fed into the machine in an upright or standing position; with its web vertical, with sets of rapidly rotating drills, made to advance toward each other on either side of the rail web. alternately pierce the rail web from either side thereof, and with the spindlerotating motors mounted on the movable carriage.

Figure 2 1s a side elevation ofthe ma-4 elevation taken on the line IV-IV of Fig- .i

ure 1. l

Figure 5 is a longitudinal sectional elevation of the fluid pressure cylinder.

Figure 6 is a detail longitudinal sectional elevation of one of the spindle bearingsl and mechanism.

Figure 7 is a side elevation of one of the spindle bearings.

Figure 8 is a detail view in elevation of the spindle gearing and connections.

. 60 Another object of my invention relates Figure 9 is a vertical transverse' sectional elevation taken centrally through the table.

Figure 10 is a vertical longitudinal sectional elevation of the adjustable guide and rail bearing block.

Figure 11 is a detail section 0f the fluid pressure controlling valves.

Figure 12 is a front elevation illustrating a modified form of my improved machine, in which the rail is fed into the machine on its side, with the web of the rail horizontal, and with a single set of drills, the motor for driving the spindles vand attached drills, being rigidly secured to the frame of the machine.

Figure 13 is a side elevation of the machine l shown in Figure 12.

Figure 14 is a detail of the catch for holding and releasing the lever for operating the controlling valves.

Figure 15 is a front elevation of another modified form of a machine, in which I use universal spindle shafts.

Figure 16 is a vertical transverse sectional elevation taken on the line XVI- XVI of Figure 15.

Figure 17 is a detail sectional elevation taken on the line XVII-XVII of Figure 15, showing the end of the carriage.

Figures 18 and 19 illustrate in detail one of the spindle universal coupling heads, the figures being taken in sectional elevation and at right angles to each other; Figure-20 illustrates a modified form of flexible spindle, and Figure 21 is a vertical longiv tudinal sectional elevation of the machine CFI shown in Figures 1 and 2, the section being taken substantially on the center line of the machine.

Referring now to the characters of reference on the drawings; and especially to Figures 1 to 11 inclusive, and Figure 21, the numeral 1 indicates the base side-frame of the machine, the lower intermediate parts of which are outwardly flanged as at 2, for attaching the fluid-pressure cylinder, 'the upper edges each having an outwardly flanged edge 3 and a slide-way 4.

Carriages 5 and 6 are mounted on the slide-waysl 4, at each end of the machine, having mounted thereon the drilling and power mechanism, both of which being of substantially the same construction, a description of one set will apply to both. T-

slots

7 and 8, extend transversely across the top of each carriage 5 and 6, receiving the heads of the bolts 11 for securing the spindlebearings 12; and the bolts 9 for adjustably securing the motors 10 to the carriages.

In the drawings each carriage has mounted thereon three spindles, but it will be readily understood that more or less may be used without departing from the spirit of my invention.

The T-slots 7 receive the heads of the which is the clamping nut 14, a downwardly '70 extending inverted T-shaped base 15 for extending into the slot 7; and a central roller-bearing 16,- with rollers 17.

The spindle 18, is mounted in the rollerbearing 16, with

washers

19 and 20 on each 7 5 side of the bearing 16, for retaining the rollers 17 and serving as wear-plates. This spindle has an enlarged forward head 21, with a drill-socket formed therein. A rollerbearing 22, is mounted on the spindleshaft 18, between the enlarged head 21; and the washer 20; andacts as a thrust-bearing, while a collar 23, is secured to the spindleshaft against the washer 19, by means of a set-bolt 24, thus retaining the several parts in the desired position. A gear-wheel 25 is mounted on the rear slightly reduced end of the spindle-shaft; and is secured thereto by means of a spline 26 and at either side of the gear-wheel on said spindle-shaft are mounted one end of the connecting links 27,

these parts being retained on the shaft by a nut 28.

The intermediate spindle-bearing 29, is

constructed without the fianged projection 13, to allow for Greater lateral adjustment, the clamping bolt- 30, extending upwardly through a slot 31; in the bottom of the carriage, otherwise the construction is similar,

having a roller-bearing 32, with rollers 33, 10o

'retained by

washers

34 and 35, roller-bearin 36, sleeve 37; retained in position by setbo t 38.

Thel intermediate spindle-bearing 29 may also if desired `be made integral with the carriage where a three-spindle machine is used, as it will only be necessary to adjust the outer spindles as will be readily understood.

The spindle-shaft 39, however serves as 110 the main drive-shaft and is somewhat different, being made with the enlarged drill socketed forward end, with the spindleshaft extending rearwardly beyond the sleeve 37, where a gear-wheel 40, is keyed to the shaft;vand links 41 are similarly mounted and retained in position bymeans of a washer 42; and cotter pin 43. The rear end o f the spindle-shaft 39, has a gear 44 mounted thereon and journaled in an` ad- 12o justable bearing 45. This gear 44, lmeshes with a pinion 46 on the forward end of the motor-shaft. Meshing with

gears

25 and 40, are idler-gears 47, mounted on bolts 48,

which pass through the ends'of the links 125 27 and 41; which hold them at all times in mesh regardless of adjustment; as will be readily understood by referring to Figure 8.

Mounted centrally between the side-frame is a table 49, upon which the end of the rail ways 52, with downwardly extending sides 53; with .inclined under-cut grooves 54 therein. vA wedge-block-56 has inclined upper faces 57; withlianged edges 58,

for contacting with the inclined-ways 52; and extending intov the grooves 54. This wedgeblock rests: upon a tie-bracket 59, and has screw-threaded openings for receiving a screw-threaded shaft 60, at the outer end of which is a hand-wheel 61; by the turning of which the tablel may beraised or lowered, as will be readily understood by referring to Figuresl .and 9 of the draw- 1n j dit one side ofthe table 49, is a stationary clamping-block. 62 having downwardly extending flanges 63,.- attached to the baseframe by bolts 64.` This clamping-block 62; extends transversely across the top of the base-frame the outer end portion resting on top of the slide-ways 4, a portion ofits face 65, projects over the table 49; and is made to conform to the contour of the side of the rail 50; and lserves as a fixed jaw for clamping the rail. l66indicatesa duct; having jet openings l67, communicating with the slot 68; through which the drills reciprocate when vin operation.- n This slot allows the spindle-bearin s and drills to be adjusted laterally. an `may extend entirely through thebock, but I prefer to have the face of the block ,which contacts with the rail, made in a separate piece, as more clearly shown in Figure 21, with holesthe size of the drill properly spaced therein, in this manner only the face ,of the block will have to be changed, when the different sized rails are bored.

A .T-shaped guide-way 69, yis formed in the top -of the clamping-block 62, in which a guide-block 70, having a pair of upwardly extending earsl 71,-between which .the end of` an L-shaped stop or gage 72,'is pivoted by means of av bolt 73, this stop-block is made to reciprocate by means of a feedscrew 74, for setting the stopv or gage 72, in

.the desired position; and its forward overhanging endmay be raised and lowered by means of 'a handle 75.

76 indicates a movable clamping-block, having a front face portion 77 ,conforming in contour to the vside of the rail to' be drilled. This movable clamping-block also has a duct, jet-openings, and is similar in this featureof construction, to the stationary clamping-block 62.

At the forward corners of the carriage'5, are upwardly extending ears 78, having boltholes 79 therethrough, for the bolts 80; which are loosely mounted therein. The forward ends of the bolt-s being screwed into the movable clamping-block 76; and a spring 81 surrounds the body of the bolt between the ears 78; and the movable clampingblock, thereby holding the block at all times in an extended position.

A fluid-pressure cylinder 82, controls the movement ofthe carriages 5 and 6. This fluid-pressure cylinder, is a compound cylinder having a large cylinder 83, in which the largepiston 84 reciprocates, its outward extending piston-rod having its end screwthreaded; as at 85 for adjustably attaching the downwardly extending army 86, of the carriage 6 thereto; by meansof the nuts 87. The smaller cylinder 88', in which the smaller piston 89; with reduced extending portion' 90 reciprocates, its outward extending piston-rod having its end screw-threaded as at 91, for adjustably attaching the downwardly extending arm 92 of the carriage 5 thereto, by means of nuts 93.

In operation the piston 84, is limited in its forward movement by the shoulder 94; and the smaller piston 89, by the shoulder 95. This compound cylinder 82, has outwardly extending flanges 96, which are attached to the outwardly extending flanges l2, on the base'side-frame bybolts.

ing an exhaust nipple 100, 'for coupling;

and with a needle-,valve 101 for controlling the exhaust. Valve 98 controls the flow of Vfluid-pressure through pipe 102, to or from the center of the cylinder 82, while valve 99,w controls the flow of fluid-pressure through pipe 103, to or from the ends of the cylinder 82. Pipe 103; also has adjusting valves104; and 105, for further controlling the amount of v fluid-supply.

Valve arms 106; each having one end attached to the valve stem of each of the threeway valves 98 and 99, the opposite endsv of said valve arms being connected together by a link 107; and pivoted at 108, to the lower end of the controlling-lever 109, this lever being fulcrumed at 110 to a downwardly extending flange 111, on the base-frame 1. The controlling-lever 109, extends upwardly at the side of the side-frame 1; and has a handle 112; on its upper end for operating the lever shown in full 'lines in Figures 1, 2 and 5, the controlling-lever 109; being in the position shown, valve 99 will be in the open Ifosition while 98l in the exhaust position,

uid-pressure will flowv into both ends of the cylinder 82; and advance both pistons Vtoward each other. The smaller piston; which is connected to the, carriage 5, will advance more rapidly than the larger piston connected to the carriage 6. The smaller `piston 89 Willtherefore advance until it reaches the shoulder 95; on the inside ofthe cylinder 88,v the carriage 5,' with the movable clamping-blockv 76; rigidly holding the rail; and the oint of the drills 120; just passing throu li the web of the rail, as indicated 1n dotte lines in Figure 1 and in full lines in Figure 21. When the smaller pis-r ton has completed its forward stroke' and contacts with the shoulder 95, 4the reduced "end 90; of the piston will extend a short f distance into the larger cylinder, i the meantime the larger piston 84 attachedxto the carriage Ghasjbeen advanced; and immediately after thal mpleton of the full stroke of the smaller e forward end of the `largejpist ntact with the forward endof the-i2 y r 'piston forcing it backward on .account until the' larger 'piston-82; contacts, or nearly contactsv with'th `shoulder94, at this point the carriage .6 has-advanced the drills l121 throu h the webofthe-.ra-il, as indicated in member 116; vo'fitl'ie leaf-sprin 115; contact# ing Withrithe' cam surface 11 on the car-1 carriages 5 and 6, as indicated at 221 in Fi ure 21l of the drawin n Fi res 12 to 14 inc usive, I have shawn a modilged form of a machine, in which the rail is fed into the machine on its side; with the web of the rail horizontal; and with a single set of spindle-shafts and bearings mounted on a carriage which reciprocates vertically on the slide-Ways of an upright side-frame, the motor for rotating the spindles being rigidlysecured to the frame of the machine. In vthese three figures, a part of the details of construction are the same as described for Figures l to v11; and

'f lts smaller l s1ze;

dette lines"in,5t*`i,\g;ure"2. l At this position', however the"controllin fl'ever 109 has been" released -by meal'lsl of t e extending Contacty *beveledear motorshaft bearing, fa

in such cases the same referencev numerals will-be given them. In this modication the carriage 123; is mounted to reciprocate vertically on the slide-ways 124 of an upright frame 125, the base of said framek having a 70 forwardly extending table or ledge 126 for the reception ofthe stationary clampingblock 62; and a rearwardly extendingledge 127 for attaching a duid-pressure cylinder 128; having a single piston 129 with an ex- 75 tending *piston-rod' 13,0; the outer end being threaded as at 131 and adjustably attached to the extendin arm:`1-32;of the carriage 123; by means o nuts 13,31 f

At the top of the u rig le-frame 125,J 80 are rearwardly exten] gbrackets 134; between which is boltedv annelj-shaped member 135, havingmount hereonthe motorv and bearm 13T vhe=,motor-shaft- Y e5 146, whichv vextends 'curedjso the lower end of-th e1-beneath 1D0 thehearing'by.' means ofa'set-screw148. i The shaft`f14- byeJ ey the keyway'l() i-ntheifspindle h gear 142; alsomeshes-with a' Small beveled- 105 gear 151 attached-tog. s motorshaft;138l"`.

In this modificationIjhavesli end'of the controllinglv 1.09., :o'nnected directly to -the ends" ff-.tlieffv lv'earms 152;v 110 by means 'of thegpivot-pin 108i* 'The operatifnY of zthismodi'cation is lar to that described orFigres 1 to 11 and i 21, and vis as follows -The .i iuidpressure is received from a suitable Asource through the main supply-pipe 153, which is connected to branch pipes 154 and 155, which extends to the ends of the fluid-pressurecylinder 128; and is controlled by the valves 98 vand 99,as illustrated. These valves are in -the position shown in Figure 11, the valve 99 being open; and thepiston is at the beginning of the working stroke,fas the piston 1s forced down- Ward by the Huid-pressure; the carriage is carried downward with the drills rotating rapidly, the movable clampin -block 76; engaging the side of the rail an securely holdlng the end of the rail in position. The carriage continues to move downward the drills 156 passing entirely through the rail until 130 the Contact member 116; engages the cani- `face 117; raises the leaf-spring 115; and releases the controlling-lever 109; and the spring 118 reverses the position of the valves; and the fluid from the cylinderis exhausted through pipe 157 into the movable clamping-bloc 76; for cooling the drills on their return movement.

Referring now to Figures 15 to 20 inclusive, these figures illustrate another modified form of my improved machine kin which 158 indicates the base-frame of the machine, having upwardly extending side-frames 159; with slide-ways 160; and connected at the' upper ends of the Side-frames by a cast cross bar 161; in which is formed the bearings for the upper portions of the spindles 162; as at 163, gear-shafts 164, as at 165; and for the drive-shaft 166, as at 167.

An adjustable table base-frame 158, having an adjusting-screw 169; operated by a hand-wheel 170; for raising or lowering the table and set-bolts 171;

' for rigidly clamping the table in the required position when desired. Upon the table may be secured the stationary clamping-block 172 uponv which the bar or rail 173 rests; and is securely clamped when the movable clamping-block 174 is lowered; by the movable carriage 17 5'; to which it is attached by the bolts 176. These bolts 176 are screwed into the movable clampingblock 174; near each end and the upper ends extend through slots 177 in forwardly exl tending brackets 178 on the carriage 17 ,5. A spring 179 surrounds the bolts between the movable clamping-block and the brackets, and a nut 180 is screwed upon the upper end of each bolt, in this manner the movable clamping-block may be adjusted forward 0r backward-as desired.

In the drawings I have illustrated a multiple machine having four spindles, but more or less may be used as desired, and as they are all similar in construction a description of one of the spindles and driving mechanism will yapply to all four sets.

The carriage 175 has a rearwardly extending bottom flange 181 with arc-shaped slots 182 therein. 183 indicates the adjustable bearing for the lower end of the spindle and has a rearwardly extendingv clamping member 184, slotted as at 185, through which pass pivot-bolts 186; that are screwedfinto the lower face of the carriage and clampingbolts 187; that pass through the arc-shaped slots 182. By loosening these bolts the adjustable bearing may be moved forward, backward or laterally as desired, and when the bolts are tightened the bearings will be rigidly held in position. I

A motor 188 is mounted upon a bracket attached to the-side-frame near its upper end, having its shaft attached to the drive-shaft 166 and may be thrown into or out of en- 168 extends from the `may be adjustedio give gagement therewith by means of a clutch 189. This drive-shaft 166 has mounted thereon beveled-gears 190; meshing with beveled-gears 191 on the lower ends of each of the gear-shafts 164, and the upper ends of said shafts 164 have mounted thereon pinions 192; meshing with gears 193, said gears each having an extending sleeve 194 journaled in the bearings 161, and a collar 195 is attached to the lower end ofeach of the sleeves 194; by a set-bolt 196, thus holding the gears'193 rotatable but against vertical movement.

The upper end of the drill-spindle 162 is reciprocally journaled inthe gear 193; and its sleeve 194; having a key 197 in the sleeve, and extending into a key-way 198, in the upper end of the spindle 162. The lower end of the spindle 199 is journaled in the adjustable bearing 183, having a ldrill-socket 200 at its lower end for holdingthe' drill 201. v'Ihe upper end of the spindle 162 and the lower end 199 are connected together by a spindle-coupling 202 and forminga universal-joint connection between the two ends. This universal-coupling connection is more clearly illustrated in Figures 18 and 19, the two sections being shown drawn at substantially right angles to each other. The ends of the spindle-coupling 202; each have a spherical head 203; with trunnion extensions 204 at the sides thereof 'and a hole 205; the y edges of which are of larger diameter than the central portion of the hole.

The lower end of each of the upper por- 163-of the cross-bar tions 162 of the -spindle and the upper end y v of each of the lower portions 199, are formed into sockets, eaehhaving a central socket 206, a transverse slot 207 in which the trunnions 204 extend, and holes 208 for the bolt 209; which passes through the hole 205.

In Figure 20 I have shown a modified form of spindle-coupling which I may use composed of a helical wire coupling 210 connecting the upper end -of the spindle-shaft 211 with its lower end 212.

A Huid-pressure cylinder 213; with Apipe connections 214 and 215; is attached to the rear side ofthe cross-bar 161, having a piston 216 and 'extending piston-rod 217, its outer end screw-threaded as at 218 and adjustably attached to the rearwardly extending arm 219 o f the carriage 175 by nuts 220.

Although I have not shown in Figures 15 and 16;- the pipe connections and controlling-lever etc., this part of the operation will be substantially thesame as that described for Figures 11 and 13.

It will be noted by referring to the drawings, that I have allowed for vertical, lateral and longitudinal adjustment, which can be accomplished by either ad'usting the table, carriage, or spindles; singly, or all of them the desired result. Although I have shown and described my invention in considerable detail, I do not wish to be limited to the exact and specific details shown and described, but may use such substitutions, modifications or equivalents thereof as are embraced within the scope of my invention or as pointed out in the claims.

Having thus described my invention, what I vclaim and desire to secure by Letters Patent is 1. In a machine for perforating metal shapes, comprising a frame, slide-ways thereon, a carriage mounted on the slideways, drill-actuating spindles mounted upon the carriage, means for rapidly rotating the drill-actuating spindles and fluid-pressure means for reciprocating. the carriage.

2. In a machine for perforating metal shapes, comprising a stationary frame, slideways thereon, a carriage mounted on the slide-ways having an extending arm, a fluidpressure cylinder attached to the stationary frame, a piston working in said fluid-pressure cylinder having an outwardly extending piston-rod attached to the arm of the carriage, means for adjustlng the reciprocating stroke of the carriage, a lurality of.

drill-actuating spindles mounte upon the carriage, and means for rotating the drillactuating spindles.

3. In a machine for perforating metal shapes, a stationary frame, slide-ways on the stationary frame, a carriage working on the slide-Ways, spindle-bearings mounted upon the carriage, means for laterally adjusting the spindle-bearings, a spindle journaled in each spindle-bearing, means for rapidly rotating the spindles and fluid-pressure means for reciprocating the carriage.

4. .In a machine :for perforating metal shapes, a 'stationary frame, slide-Ways on the stationary frame, a carriage working on the slide-ways, a plurality of spindle-bear` ings mounted upon the carriage, clamping means for laterally adjusting the spindlebearings, a spindle journaled in each spindlebearing, intermeshing-gears for connecting the spindles together, means for rotating the spindles and fluid-pressure means for reciprocating the carriage.

5. In a drilling machine, a stationary frame, slide-ways on the stationary frame, a carriage Working thereon, a transverse slot formed in the face of the carriage, a plurality of adjustable spindle-bearings having base-projections extending into the slot in the face of the carriage, clamping bolts for holding the spindle-bearings after adjustment, a spindle journaled 1n each spindlebearing, a gear keyed to each spindle, an idler-gear between and intermeshing with the gears attached to the spindles, a motor for rotating the spindles and fluid-pressure means for reciprocating the carriage.

6. In a drilling machine, comprising a reciprocatin carriage, a plurality of rapidly I rotating rills mounted on the carriage, Huid-pressure means for advancing the carriage and rapidly rotating drills and thereby projecting the said rapidly rotating drills into the material to be drilled.

7. In a drilling machine, comprising a carriage, a plurality of rapidly rotating drills mounted on the carriage, fluid-pressure means for advancing the carriage and rapidly rotating drills mountedthereon and thereby projecting the said rapidly rotating drills into the material to be drilled, and fluid-pressure means for retracting the carriage and drills.

8. In a machine for perforating metal shapes, comprising a work-receiving table, a stationary clampin -block at one side of the work-receiving ta le, a carriage, a movable clamping-block attached to the forward end of the. carriage on the opposite side of the table to the stationary clamping-block, a plurality of drills mounted upon the carriage and adapted to extend through the movable clamping-block, means for rapidly ,rotating the drills, fluid-pressure means for advancing the carriage and rapidly rotating drills mounted thereon and thereby projecting the rapidly rotating drills linto the material to be drilled, and fluid-pressure means for retracting the carriage and drills from the material drilled.

9. In a drilling machine, comprising a Work-receiving table, a stationary clampingbloc'k at one side of the Work-receiving table, a carriage, a movable clamping-block attached to the forward end of the carriage on the opposite side of thev table to the stationary clamping-block, a pluralityof spindles mounted in journal-bearings upon the carriage, adrill attached to the forward end of each spindle, said drills being adapted to extend through the movable clamp-in block, means for rapidly rotating the dril s, a fluid-pressure cylinder, a piston reciprocating therein having an outwardly extending piston-rod, an arm extending from the carriage and attached to the piston-rod and 'means for controlling the How of Huid-pressure to and from the cylinder.

10. In a drilling machine, a stationary frame, a slide-way formed thereon, a reciprocating carriage mounted on the slide-way, a plurality 'of spindles journaled in bearings attached to the carriage, means for rapidly rotating the spindles, an arm extending from the carriage, a fluid-pressure cylinder attached to the stationary frame, a piston working in said fluid-pressure cylinder having an outwardly extending piston-rod attached to the arm of the carriage, means for adjustin the reciprocating stroke ofthe carriage an means for controlling the flow of fluid-pressure to and from the cylinder.

11. In a drilling machine, a stationary frame, a slide-Way formed thereon, a carriage mounted on the slide-Way, journal bearings mounted upon the carriage, a spindle journaled in. each journal-bearing, an'arm extending from the carriage, a :Huidpressure cylinder attached to the stationary frame, a pistonworkingin said duid-presv sure` cylinder having kan outwardly' extendleating the carriage lattached-to the stationary frame, valves for controlling the fluid- "pressure to, and from the fluid-pressure cylinder, means for operating, the valves to ad- Vance the .carriage andspindles mounted thereon; and means for operating the valves to retract the carriage and spindles.

- 13. In a drilling machine, a Stationary frame, aslideeway formed thereon, acarriage mounted on the slide-way, spindles journaled in bearings attached' to the ,car-

riage, a fluid-pressure cylinder for reciproeating the carriage attached to the stationary frame; valves for controlling the iliuid-y ressure to andfrom the fluid-pressure cylf inder, means for simultaneously operating the valves to advance the carriage and lspin-k dles'mounted thereon, and means by the advanced movement of the carriage 'for simultaneously operating the valves to retract the carriage and spindles.' i

-' 14. Ina drilling machine,` a. stationary frame, slide-Ways formed thereon, a carriage mounted on the slide-Ways, spindles journaled inl bearings attached to the carriage, a fluid-pressure cylinder for reciprocating thecarriage attachedy to the stationary frame, valves for controlling the iuidpressure to and-from the Huid-pressure .cyl-

inder, an operating-lever pivoted' to theside frame, one end of said operating-lever being connected to the valves While the opposite end'is made to engage a catch to hold the lever after' operating the valves to advance frame, slide-Ways `formed thereon, a car-y mage mounted on the slide-Ways, a plulthe carria e, and a cam on the carriage forl releasing t e catch and allowing the operating-lever to simultaneously operate the* valves to retract the carriage and spindles. 15. In a'drilling machine, a stationary rality of rspindles' journaled in bearings on the carriage, fluid-pressure' means forv yreciprocating the carriage, valvesfor controlling fthe fluid-pressure, a leverfor controlling the fluid-pressure valves, means for adbearings attachedto the car-i vancing the carriage, a catch for holding the lever, means on the carriage for releas' ing the lever from the catch and means for operating the valves for retracting the carriage.

In a drilling machine, a carriage, a plurality .of spindles mounted upon the carriage,` means kfor rapidly rotating thel ,spin-v dles, Huid-pressure means for advancing the carriage,.means for regulatingy the ad'- vancing movement of thecarria e and fluidpressure means for automatical y retrac'ting the carriage. ,v

17. In a drilling machine, a plurality of Vadjustable spindles mounted upon the carriage, means forrapidly rotating the spindles, fluid-pressure means for advancing thev `rcarriage, a needle-valve Jfor regulating the vspeed of theadvancing movement of the carnage, adjusting -means for controlling the `length of the-reciprocating stroke of the carriage and fluid-pressure means for automatically retracting the carriage.

. 18. In a drilling machine, a stationary frame, slide-Ways'formed thereon, a Workreceiving table, a carriage mounted upon the slide-Ways at either side of the Workfreceivingqtable, a pluralit of spindles journaled axis ,of the spindles on one carriageon one side of thef work-receivin table being in alignment with the axis o the spindles on the carriage on the opposite sideof the workreceiving table and fluid-pressure means for reciprocating the carriages.

' 19. In a drilling machine,v a stationary frame, slide-Ways formed thereon, a Workreceiving table, a carriage mounted uponv theslide-Ways at either side of the ,Workreceiving table, a plurality of spindles journaled in adjustable bearings attached to each carriage, vthe axis of the spindles on one carriage on one side of the Work-receiving table being in alignment With .the axis of the spindles on the carriage on the opposite side of the work-receiving table, Huid-pressure means for advancing the carriages simultaneously toward each other and fluid-pressure'means for simultaneously retracting the carriages from each other. i

20. In a drilling machine, a `stationary frame, slide-Waysformed thereon, a work receiving table, acarriage mounted upon the slide-ways at either side of the work-receiving table, aplurality of spindles journaled in laterally adjustable bearings attached to each carriage, the axis of the spindles on one carriage on one side of lthe work-receiving table being in alignment with the axis of the spindles on the carriage on the opposite side of the work-receiving table', Huid-pressure means for advancing the carriages simultaneously toward each other, means for par-' `tially retracting one carriage by the ad-A 'in bearlngs attache to each carriage, the

vanced movement of the opposite carriage and fluid-pressure means for simultaneously retracting the carriages from each other.

21. 'In a drilling machine, a stationary -rame,fslideways formed thereon, a workreceiving table, a carriage mounted upon theslide-ways at either side of the workreceiving table, a plurality of spindles journaled in laterally adjustable bearings attached to each carriage, the axis of the spindles on one carriage on one side of thework-receiving table being in alignment with the axis of the spindles on the carriage on the opposite side of the work-receiving table, a fluid-pressure cylinder, a piston reciprocating within each end of thecylinder, one of the said pistons being of smaller diameter` than the other and each having an outwardl extending piston-rod, an arm extending rom each carriage and attached to their respective piston-rods, fluid-pressure means for advancing the pistons and carriages toward each other, a projection extending froin one of the pistons for contacting with the opposite piston for retracting*v the smaller piston by the advanced movement of the larger piston and fluidpressure means for, retracting` both pistons and carriages simultaneously."

22. In a drilling machine, a carriage,

^ spindles mounted in laterally adjustable bearings'on the carriage, a drill attached to the forward end of each or" the spindles, a

work-receiving table, clamping-blocks ony either side of the work-receiving table, holes through the clamping-blocks for the passage of the drills, a fluid-pressure cylinder i'or reciprocating the carriage and a connection between the .fluid-pressure cylinder and the clamping-blocks for exhausting a cooling medium into the clamping-blocks around the drills when retracting the drills.

23. In la drilling machine, a carriage, spindles mounted in adjustable journal bearings upon the carriage, fluid-pressure means for advancing the carriage, means for controlling the speed of the advancing movement of the carriagel and fluid-pressure means for retracting the carriage.

24. In a drilling machine, a stationaryy Jframe, slide-ways formed thereon, a carriage mounted Aupon the slide-ways, a plu-4 rality of spindles journaled in adjustable bearings on` the carriage, 4fluid-pressure means foi." advancing the carriage, a valve for controlling the speed of the advancing vmovement of' thecarriage and fluid-pressure means for retracting the carriage.

'25. In a drilling machine, a stationary frame, slide-ways formed thereon, a carriage mounted upon 4the slide-ways, a plurality of journal bearings mounted upon the carriage, :i pindle mounted within each journal bearing, a drilll attached to the forward end of each spindle, a work-receiving table secured to the stationary frame, clamping-blocks en either side of the work-receiving table, slots through the clamping-blocks, a ductin the clamping-blocks having jet-openings communicating with' the slots, a uid-pressure means for advancing the carriage and luidpressure means for retracting the carriage. i 26. In a drilling machine, a stationary.

ing-blocks having jet-openings connect-ing y with the slots, a uid-pressure'cylinder attached to the stationary frame, a piston working in said fluid-pressure cylinder having an outwardly extending piston-rod attached to the arm of the carriage for reciprocating the carriage and a connection between the duct and the exhaust from the Huid-pressure cylinder.

27. In a drilling machine, a stationary frame, a slide-way formed thereon, a carriage mounted on the slide-way, a plurality of spindles journaled in bearings attached to the carriage, means for rotating the spindles, a, fluid-pressure cylinder,` va con nection between the carriage and the lfluidpressure cylinder for reciprocating the carriage, a work-receiving table, clampingblocks on either side of the work-receiving table, slots in the clamping-blocks, ducts in thev clamping-blocks having jet-openings communicating with the slots, and a connection between the ducts and the exhaust from the fluid-pressure cylinder.

28. In a drilling machine, a stationary frame, slide-ways formedV thereon, a carriage mounted on the slide-ways, a plurality of spindles journaled in bearings attached to the carriage, means for rotating the spindles, a fluid-pressure cylinder, a connec-v the ducts and the exhaust from the {luidpressure cylinder.

29. In a drilling machine, comprising a work-receiving table, a stationary clamp- 'ing-block at one'side of the work-receiving for controlling the flow o ment of the carriage. a5l

pressure cylinder, `a piston reciprocating therein having an loutwardl extending piston-rod, an arm extending rom the carriage and attached tothe fpiston-rod, means {luid-pressure `to and from the cylinder'and means for spraying the drills with a cooling medium on the return movement of the carriage.

30. In a drilling machine', a`-'carriage, spindles adjustably mounted Iupon the Vcarnage, means mounted'u on thec'arriage for rotating thespindles, uidgpressure means for advancing the carriage andy Huid-pres sure means for retractin thecarriage.

31. In a drllin `mac ine, a carriageV a plurality of spind es `journaled in lateral] Y adjustable bearings mounted -upon. the carriage, a motor mounted upon the carriage :for rotatin Vthe spindles, Huid-pressure means foravancing the carriage and. fluidpressure means Afor automatically retracting the carriage at the end of theorward move- "32, In a machine for perforating metal shapes, comprising a stationary frame, slide- Ways Vformed thereon,'a Work-receiving table mounted at' an intermediate vposition on the stationary frame betweennthe slide-ways,v a

. spindles journaled 1n. adjustable bearings carriage on lthe slide-wayson each side of the Work-receivin table, ka .plurality of attached to each carriage, the axis o the spindles mounted'on onecarria being in a ignment with Vthe axis of t e spindles. mounted on theopposite carriage, means mounted upon the carriages for rotatin the spindles, fluid-pressure means for simu taneously advancmg ,both carriages and Huid-pressure means for automatically -retractin both carriages from each other.

33. he method of perforating a hotrolled bar of metal having a relatively thin portion which consists in firstholding-the bar in the desired position, and then advanc ing from somedistance from the bar by a flexible fluid-pressure feed a .rapidly rotating drill through the relatively thinportion of the bar.

v 34. The method of drillingv a hot-rolled bar of metal havin a relatively thin web portion, which consists in first Vvplacing the bar in the desired osition to be drilled, and then simultaneous y advancing from some distance from the bar vby aI flexible fluiding stroke rquenching the drills.

pressure`- feed, clamping means for holding the 'bar and a plurality of rapidly rotating drills whichare advanced through the' relaf" tively thinvveb portion ofthebar.

35. The lmethod of drilling a hot-rolled bar ofgmetal having a relatively thinwel.v

portion, which consistsv in. first `placing the bar l.upon-a work-receivin table in the desii-ed position to be drille and then simultaneously advancing from some distance" fromr` vthe barfwby a flexible fluid-pressure feed, clamping means for holding the bar and a set of rapidly rotatingdrills `from either side of the bar which are'advanced through the relatively thin web vportion of the lbar -from each side theneof, the yset of drillson one side of the bar beingfadvanced .until the points of thedrills'pass through the thn'web portion of the bar, then advancingy the'lotherset of drills on `the otherside `of the bar through the holesformed bythe first set ofcdrills, and fluid-pressure meansfor automatically retractingthe drills, and clanlxping means at the end'of the working stro e.

.36. The method of drilling 'ay hot-rolledA baruof metal, 'which consist'siin first placing the bar vupon a' work-receiving table in the desired position to be vdrilled, fand then simultaneously advancingy fromV some dis-` tance from the bar by a. flexible fluid-pressure feedy clamping means for holding the bar and a set of rapidly'rotating drills advanced in multiple from 4either'side of they bar `throu h the-bartl1e set of vdrills onfone side of t e baribeing advanced until the y' points of the'drillspass -through thek thinI web portion of the bar,`lthen.'advancin the. the..

other set of drills on Vthe other side o bar throu h the holes formed .by therst set of dri ls, and fluid-pressure means for automatically retracting thev drillsv and clanliping means at the end 'ofthe working stro e.

si. The' manos af inning a hot-muta the bar upon a work-receivin table in the desired position to be `drill then simultaneously advanci from. some.` distance `from the bar by a ilu1d-pressure feed, clampmeans forv holding the bar and a plnv `ra ity of ra idlyl rotating drills advanced in multiple rom eazhfsider 'of the bar into y beruf metal, which consists in'iirstk placing the bar, automaticallyretracting the drills and clampingbmeans atv the end ofthe yvork- 38; vThe method of drilling a Yhot-rolled bar of metal,w`hich consists in first placing the bar upon a work-receiving table in the desired position to be drilled, then simultay {luid-pressure, and then neously advancing from some distance from the bar by fluid-pressure, clamping means for holdin the bar and a set of. rapidly rotating dril s advanced in multiple-from each side of the bar through the bar, the set of drills on one side of the bar being in alignmentwith the set of drills on the opposite side of the bar, the set of drills on one side ofthe bar bein-g advanced until the points of the drills pass through the thin web portion of the bar, then advancing the other' set of drills on the other'side :of the bar through 4 the holes formed bythe first set of drills,`A .automatically retracting the drills and clamping means at the end of the Working stroke by fluid-pressure, and then quenching' the drills.

39. The method of drilling a lhot-rolled bar of metal, havin a relatively thin web portiondvhich consists in first placing the bar upon a Work-receiving table in -t-he de sired position .to be drilled, then simultaneously advancing from some distance from the bar by fluid-pressure clamping means for holding the bar, and a set of rapidlyrotating drills advanced invmultiple` from each side of the bar, through therelatively thinweb portion of the bar, the set of drills on one side of the bar being in alignment with the set'of drills onV the opposite side of the. bar, eachof the drills partially per;-

forating the relatively thin web portion of.

,the bar, the set of drills on one side of the i bar of metal having sired position to be drilled, simultaneously clamping the bar and advancing in multiple a plurality ot rapidly rotating drills on each side of the bar by fluid-pressure, the drills on one side of thevfbar being in alignment with the drills on the opposite side of the bar, each of the drills partially perforating the relatively-thin web portion of the bar,

and tluid-pressure means for automatically retracting the drills and clamping means at the end of the Working stroke.

L11. The method of drilling a hot-rolled baro-f metal having a relatively thin web portion, which consists in first placingthe` bar upon a work-receiving table in the de sired position toy be drilled,- advancing by fluid-pressure a plurality of'drills from some distance from the hot-.rolled bar and from opposite sides thereof" into` v the'V relatively thin web portion of the bar, each drill only partially perforating the web of thev bar.

42( The method of drilling a hot-rolledv bar of metal having a relatively thin Web portion, which consists in fiist placing the bar upon a Work-receiving table in the desired position to be drilled, advancing by fluid-pressure a set otv drills from opposite sides ot the bar into theA relatively thiniweb portion of the bar, the set ofidrills on one side ofthe bar being in alignment with the set ot drills on the opposite side of the bar, the set ot' drills on one side of the bar being advanced first into the rela-tively thin Web portion ot the bar for partially perforating the thin web portion of the bar, then ad vant-ing a second set of drills on `the opposite side or' Vthe bar to complete the partial perforations formed by the lirst'set of drills'. In .witness whereof I hereunto aflix my signature.

VELMER S. SEAVEY.