US2523601A

US2523601A - Rock cutting machine

Info

Publication number: US2523601A
Application number: US752612A
Authority: US
Inventors: Swift Edward
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-06-05
Filing date: 1947-06-05
Publication date: 1950-09-26
Anticipated expiration: 1967-09-26

Description

E. SWIFT 2,523,6@H

ROCK CUTTING MACHINE Sept. 26, 1950 FiledJune 5, 1947 6 Sheets-Sheet l [11 ven lor Ed ward S wr'f A ttoeyx SWL 26, 1950 E. swlF-r 25g-396m ROCK CUTTING MACHINE I :I1/enter Edward Swift Sep@ 195@ E. SWIFT 2,523,60l

ROCK CUTTING MACHINE Filed June 5, 1947 6 Sheeos--Sheefl 3 'Qa n R l\ In N e In n 2 N 0 \\I NNN III m Sept., ze, 1950 Filed June 5, '1947 E. SWIFT ROCK CUTTING MACHINE 6 Sheets-Sheet 4 Inventor Edward Swifi Sept. 26, 1950 E. SWIFT 2,523,601

ROCK CUTTING MACHINE I mlenlor Edward Swift Sept. 26, 1950 E. swlFT RocK CUTTING MACHINE 6 Sheets-Sheet 6 Filed June 5, 1947 m m mf H W S d r a w E Patented Sept. 26, 1950 UNITED STATES PATENT UFFI'CE 1 ROCK GUTTINGMACHINE Edward Swift, Chula Vista, Calif.

Application June 5, 1947, Serial Nol 75256122 9 Claims. l This invention relates to improvements in rock cutting machines.`

.An-.object of the-invention istosprovidean improved rock cuttingmachine whichgw-ill employ vertically adjustable upper and lowerd-islp-shaped cutters which will be hydraulically-forced towards eachothereupon the upper andlcwersurfaces o-a; rock when clamped betweenupper-and lower travelling` tables-reciprooabgly mounted forl movement-between said; euttersrV Another object oifthefnvention is to provide an `improved rockcuttine machine which will emplof7 reciproceblyemeun d upper and lower rock supporting tablesV hav fmeans for clamping; a rock-therebetween andra plurality of rows of. up.- per end-lower vertically` adjustable...- disk-shaped rotary cutters adapted to engage the upper and lower-.surfaces of :the rock. to.- be cut; beinev operated'by. ies-oihrydraulically operated eccentriczrcems..

A. f .further obj ectof 'the invention is to provide an improved:rock'fcuttingfmachine including a main supporting frame upon which cooperating; upper and lower rock; supporting tables are reciprocably mounted .with anti-slipping means being incorporated in the upper table, and diskshape cutters supported by upper and-lower cutter supporting beams disposed. transversely of said tables, andhavingfhydraulically operated eccentric cams fop moving said cutter supporting beams towards the-roch supported between the tables until the cutters areforcibly engaged with the upper-andlowepsurfaces of the rock as it and-itsv supporting-,tables are moved between the cutter beams and cutters.

Another object of the inventionis to provide a-n` imppoved hydraulically operated rock cutting machine Which--willwbe highly eicient in operation, and. relatively inexpensive tomanufacture and produce. Y

Qther objectsV will appear as the description proceeds.

In the accompanying'drawings-which form a part of this application, Y Figure 1 is a side elevation of -the improved-hydraulically operated rock cutting machine;

Figure 2 is a plan view of the improved hydraulically operated rock cutting machine;

Figure 3 is an end view of the improved hydraulically operated rock cutting machine;

Figure v4 is. a sectional view taken on the line t-.llof Figurel 2;

Figure isa sectional view'taken on the 5.-..5 of Figure 2;

Figure 6 isa sectional view taken onv linel 6 6 line of Figure 4;

Figure 7 is a'detail sectional view taken on the line 'l-Jof Figure 1;

Figure 8 isla detail side elevation of the bearing. rollersfori-the lower rock supporting table showingfthef same supported in rolling Contact ontne machine frame;

Figure A9 isa detailperspectiveviewoi the beerlnsrollers `for the lower rock supporting table, also` `showinga. side .thrust roller bearing Vfor lthe tableV edge.;

Ieisure` 10 is a detail. perspective view Oia pair oi framefuprignts with Ithe upperand lower Cutter. supporting. beams disposed thereon.. for` vertical adjustment. and` p Figure. 1l isa-perspective. View. ci. one. of. the disk-shape. stone. cutters with its/yoke mounting support.

Like characters of reference are use dfthroughout the. foucwinaspecicatipn .andthe aecompenvine drawings. to designateY corresponding parts.

In .carrying out. tneinvention, tnereis. pro.-

`vided.. a. substantially. rectangular supporting frame. generally designated. by the. reference numeral. l., thelsarnebeina .formedofengle iron upper side. members 2 and L3, andlower sldernem.- bers l and 5 connected togetherby means of the vertical. standards. @.formedoisirnilar enel@ iron construction... Upper.end orosslnembers 'land 8 are.` connectedlbetween theopposlte ends of the upper Side. .frame .members 2.. and .3i while. lower endcross memberstend l0. Iare connected between theopposite ends. of. the lower Side frame members. ,4 .and .5,L I Theseangle. iron .frame mem.- bers are preferably.weldedtoeether to .provide a rigid construction. while angular reinforcing .web members orplateswl [are weldedin the several .corners of the. frenle.,. t

A lower rock. supporting table l2 is formed substantially rectangular. inshepe freine plurality ofspacedparallelfshape angle iron bars I3x thesame .being heldA in lxedqposition within the angle, iron. outer frame members i4.

Depending. pairs. ci supporting rollers l5 are rncuntedupontne inverted Yeshape supports. l5 at. the lrontandrear of. the lower Supporting table L2.. endet either side thereof, and are adaptedto engagethe upper flat-surfaces of the side frame members 2 land 3 of the main frame l v.for reeiprocatina vmovement.

A. transversely disposed shaft. l ismounted adiacenttueendcf. the frame I between the impor side..

frame members

2 and 3% lsupporting the.. arms il and. i6 on their Outer extremities., whichin turn are securedto the pitman rods I9 and lZliseueiired lat their opposite ends to the reciprocable lower rock supporting. table l2.

Upwardly.

extendingbrackets

2,1 are secured to the upper

side Vframe members

2 and 3, and support thes'identhrust roller bearings 22 Which engage the sides ofthe lower stone supporting table! ztosteady and guide the same asit moves back and forthover the main frame l. A., pair. otupwardly extendine arms 23 endld are secured to the'ends of the upper cross frame member 8, and rotatably support the feed roller 25 mounted therebetween for supporting and guiding the rock (not shown) as it is fed onto the lower rock supporting table l2.

Pairs of upwardly extending oppositely disposed

angle iron standards

26 and 21 are welded to the opposite ends at either side of the lower rock supporting table |2, and support the apertured ears 28 on their upper ends, in which the upper ends of the coil supporting springs 29 are supported. The lower ends of the coil springs 29 are secured to the upper rock clamping table 38, which is formed with a substantially rectangular frame 3| of angle iron, to which the spaced longitudinally extending inverted U-shaped channel members 32 are secured in spaced relation, preferably by welding. A length of rubber hose 33 is secured in each of the inverted U-shape channel members 32 and extend below the lower extremities thereof to engage the upper surface of a rock (not shown) when vclamped between the lower supporting table l2 and the clamping table 3|] to provide a non-slipping clamping engagement with the rock, the function of the coil springs being to resiliently hold the rock clamping frame 38 in spaced position above the rock supporting table l2 when the machine is not in actual operation. Y

A transversely extending shaft 34 is mounted between the

bracket arms

35 and 36 secured to the standards 21, and supports the actuating cams 31 and 38 which bear upon the upper ends.

of the rock clamping frame 3. The toothed quadrants 39 and 4B are secured to the standards 21 and are adapted to be engaged by the dogs or pawls 4| and 42 pivotally mounted at 43 on the cams 31 and 38.

An operating lever 44 is secured centrally on the shaft 34 and terminates in the handle 45, and a connecting rod 46 is lpivotally connected thereto, being connected at its opposite end to a turn-buckle 41, and a similar connecting rod 48 is connected between the turn-buckle 41 and the chink 49 attached at 58 to the cross shaft 53 upon which are mounted the actuating cams and 52 bearing upon the inner end of the rock clamping frame 39, whereby operation of said handle 45 will simultaneously operate the oppositely disposed

actuating cams

31 and 38, and 5| and 52 to lower and clamp the rock clamping table 39 in the desired clamped position.

Two vertically extending pairs of spaced elongated

angle iron standards

54 and 55 are attached to the opposite side frame members 2 and `4,.and A3 and 5, and support the upper and lower angle iron reciprocating

guide bracket members

56 and 51, between which the upper and lower

cutter supporting beams

58 and 59 are respectively supported.

Each ofthe

cutter supporting beams

58 and 59 are formed of box construction with spaced parallel extending arms 6|) and 6|, between which the yokes 62 are secured by the bolts 53, and between which the axles 64 are mounted for supporting the ball bearing races- 65 and superimposed disk-shaped -cutters 68, said cutters being disposed in vertical alignment to'extend through the slots 61 formed by .the spaces between the spaced parallel extending 'IT-shape angle iron bars 3 in the lower rock supporting table I2, and between the. spaces formed by the spaced inverted U-shape channel members 32 in the rock 'the turn-buckle 81.

supporting beams 58 are provided at their opposite ends with the hooks 68 which are engaged by the chains 69 secured to the lower ends of the coil springs 10, whose upper ends are secured to the cross bolts or pins 1| disposed between the upper ends of the pairs of

standards

54 and 55.

Secured to the

reciprocating guide members

56 and 51 and vertically movable therewith, are the

bracket members

12 and 13 respectively, between which the

longitudinally extending shafts

14 and 15 are mounted.

Actuating cams 16 and 11 are fixed tothe opposite ends of the

shafts

14 and 15, and each of the cams 16 and 11 supports the

ball bearing rollers

18 and 19 for rolling engagement with the flat terminal ends and 8| of the disk-shape

cutter supporting beams

58 and 59 for forcing the same together when actuated by the hydraulic cylinder 82 and its associated linkage now to be described.

Upwardly extending links 83 are pivotally supported upon the cross shafts 14, while the downwardly extending links 84 are pivotally supported upon the lower cross shafts 15.

The outer ends of the links 83 are connected together by the connecting

rods

85 and 86, which are connected together at their adjacent ends by n Similarly, the outer ends of the links 84 are connected together by the connecting

rods

88 and 89 which are connected together at their adjacent ends by the turnbuckle 90. i

Ther shafts

14 and 15 and their actuating cams 16 and 11 are mounted for vertical adjustment in the bracket plates 9| and 92 secured to the diskshape

cutter supporting beams

58 and 59, being held in the desired position by means of the securing or locking bolts 93.

The hydraulic cylinder 82 is supported at its lower end by the fixed arm 94, which in turn is connected by the link or arm with the arm 84 and cam shaft 15.

The piston (not shown) in the cylinder 82 is connected to the piston rod 96 extending from the upper end thereof, and is connected by means of the link or arm 91 with the cam shaft lever 83 secured to the cam shaft 14.

Oil under pressure will be fed through the inlet tubing 98 to the upper part of the cylinder for actuating the piston when the disk-shape

cutter supporting beams

58 and 59 are to be moved to gether to cut a rock (not shown), The tubing y98 is connected with the lower end of the cylinder 82 forreleasing the pressure on the rock after it has been cut.

` Pivote'd pawls I0 will be mounted on the

cam arms

83 and 84 for engagement with the segments |9| secured to the main frame for locking the cutters in contact with the work. Y

The mode of operation of the improved rock cutting machine will be described as follows; Assuming that the disk-shape cutter supporting beams r58 and 59 are in their open position and that the, rock supporting table I2 and the rock clamping table 3U are also spaced apart as far as possible. A rock (not shown) torbe cut is placed on the feed roller 25 and rolled onto the rock supporting table I2. The handle 45A is rmly grasped and pulled down, thereby causing thecams 31 and 38, and the cams 5| and 52 to force the rock clamping table 39 down onto the rock to firmly clamp the rock in iixed position. The pivoted pawls 4| and 42 will lock the table 30 in fixed position, After this, the oil under pressure is let into the hydraulic cylinder 82 through the tubing 99 to force the upper and lower disk-cutter supporting beams together until the cutters 66 are firmly engaged with the upper and lower surfaces of the rock to be cut. lThe shaft i6 is then rotated to` operate the pitmans i9 and 20 to reciprocate the tables i2 and 39 with the rock supported therebetween back and forth. As the rock is cut, additional oil under pressure is fed to the hydraulic cylinder 82, and the

beams

58 and 59 are locked in adjusted position by means of the pawls |00, engaging the segments I I.

From the foregoing description, it will be apparent that a highly efficient rock cutting machine has been devised and provided.

While the preferred embodiment of the instant invention has been illustrated and described, it will 'be understood that it is not intended to limit the scope of the invention thereto, as many minor changes in details of construction may be resorted to without departure from the spirit of the invention.

Having described the invention what is claimed as new is:

1. A rock cutting machine comprising a stationary frame, a rock-supporting table reciprocably mounted thereon, supporting and thrust bearing wheels for said table, a rock-clamping table disposed above said rock supporting table and movable therewith, vertically movable cutter supporting beams disposed above and below said tables, rotatable disk-shaped cutters on said beams, resilient supporting means both for the upper cutter supporting beam and for said rockclamping table, manually actuated cams for adjusting said rock clamping table towards said rock supporting table, and hydraulic operated cam means for moving said cutter supporting beams towards each other.

2. A rock cutting machine comprising a stationary frame, a rock-supporting table reciprocably mounted thereon, supporting and thrust bearing wheels for said table, a rock-clamping table disposed above said rock supporting table and movable therewith, vertically movable cutter supporting beams disposed above and lbelow said tables, rotatable disk-shaped cutters on said beams, resilient supporting means both for the upper cutter supporting beam and for said rockclamping table, manually actuated cams for adjusting said rock clamping table towards said r rock supporting table, hydraulic operated cam means for moving said cutter supporting beams towards each other, and pivoted locking pawls for holding said cutter supporting beams in the desired adjusted position.

3. A rock cutting machine comprising a stationary frame, a rock-supporting table reciprocably mounted thereon, supporting and thrust bearing wheels for said table, a rock-clamping table disposed above said rock supporting table and movable therewith, vertically movable cutter supporting beams disposed above and below said tables, rotatable disk-shaped cutters on said beams, resilient supporting means both for the upper cutter supporting beam and for said rockclamping table, manually actuated cams for adjusting said rock clamping table towards said rock supporting table, hydraulic operated cam means for moving said cutter supporting beams towards each other, vertically adjustable brackets for supporting said beams in the desired adjustment with respect to said frame, and pivoted locking pawls for holding said cutter supporting beams in their clamped position.

4. A rock cutting machine comprising a stationary frame, a rock Supporting table reciprocably mounted thereon, a guide roller secured to said frame, a rock clamping table secured above said rock supporting table and movable therewith, shafts mounted in said rock clamping table, cam members on said shafts and engaging said rock clamping table, stop means engaging one of said cam members, a lever secured to one of said shafts for lowering the rock clamping table into operative position, vertically slidable cutter supporting beams disposed above and below said tables, and rotatable disk-shaped cutters on said beams.

5. The combination of claim V4, wherein said rock clamping table includes a plurality of U- shaped channel members and a length of rubber hose secured in each of the inverted U-shaped channel members below the lower extremity thereof for providing non-slip engagement with a rock.

6. A rock cutting machine comprising a stationary frame, a rock supporting table reciprocably mounted thereon, a guide roller secured to said frame, a rock clamping table secured above said rock supporting table and movable therewith, shafts mounted in said rock clamping table, cams on said shafts and engaging said rock clamping table, stop means engaging one of said cams, a lever secured to one of said shafts for lowering the rock clamping table into operative position, vertically slidable cutter supporting beams disposed above and below said tables, rotatable diskshaped cutters on said beams, cam means secured tothe upper cutter supporting beam, and hydraulic means operating said last-named cam means toy move the cutter supporting beams towards each other.

7. The combination of claim 6, wherein said hydraulic means is a piston and cylinder, link means securing said hydraulic means and said cam means for operative engagement, and bearing rollers on said cam means engaging the ends of said beams for forcing them together.

8. The combination of claim '7, and pivoted locking pawls secured to said machine for holding said cutter supporting beams in the desired adjusted position.

9. A rock cutting machine comprising a stationary frame, a rock-supporting table reciprocably mounted on said frame, a guide roller secured to said frame, a rock clamping member secured above said rock-supporting table and The following references are of record in the le of this patent:

UNITED STATES PATENTS Name Date Orlow May 11, 1943 Number