US1565444A - Stone-block-sawing machine - Google Patents

Description

Dec. 15, 1925- 4 N. T. HASHIM,

STONE BLOCK SAWING MACHINE 5 Sheets-sheaf; 1

Filed Dec. 18. 1924 Dec. 15, 19,25. 1.565.444

N T. HAS HlM STONE BLOCK SAWING MACHINE Filed Dec. 18. 1924 5 Sheets-Sheet 2 Dec. 15,1925. 1.565.444

N. T. HASHIM STONE BLOCK SAWING MACHINE Filed Dec. 18, 1924 s Sheets-Sheet o no &

N. T. HASHIM STONE BLOCK SAWING MACHINE Dec. 15, 1925- Filed Dec. 18;

1924 5 S hets-Sheet' 4 Dec. '15, 1925. 1.565.444

N. T. HASHIM STONE BLOCK SAWING MACHINE Filed Dec. 18, 1924 5 Sheets-Sheet 5 I Patented Dec. 15, 1925.

warren STATES NAGEEB T. HASHIM, OFiMANILA, PHILIPPINE ISLANDS.

STONE-BLOCK-SAWING MACHINE.

Application filed December 18, 1924. Serial No. 756,793.

To all whom it-mag concern:

Be it known that NAonnB T. HAsHIM, a citizen of the United States, residing at Manila, in the Philippine Islands, has invented certain new and useful Improvements in Stone-Block-Sawing Machines, of which the following is a specification.

My invention relates broadly to stone sawing machines, and more particularly to machines of this character designed to saw building blocks from Dubie stone, or other similar naturally occurring stone formations.

The primary'object of my machine is to provide such a machine, which is capable of performing all the operations, necessary to cut the rock into the desired size blocks. from the natural deposits.

Another object of my invention is to so arrange the operative parts of the machine that they may be readily adjusted to eifect the desired cuts into the surface of the stone bed to form the side and ends of the blocks, and also to undercut the blocks, thus formed, to sever them from the natural deposits.

A further object of my invention is to provide a machine of the character described, that is adapted to travel over the surface of the natural stone deposit during the operations of cutting and severing blocks of desired shape and size therefrom.

A still further object of my invention is to so arrange the operative parts of the machine, in relation to the driving mechanism, that all operative parts may be driven from a single power plant and readily controlled by a single operator.

A further object of my invention resides in the novel construction of the stonecutting machine, whereby the maximum number of blocks may be cut from a quarry at each setting of the machine, and with the minimum labor and expense.

It will be understood that the machine forming the subject matter of this applica' tion is designed to cut predetermined size blocks from the top surface of a stone quarry, and that the machine is adapted to travel over the surface of the quarry during the various steps of cutting and severing the blocks therefrom. The machine is designed particularly to cut building blocks from natural deposits of Dubie rock such as is found in the Philippines. This Dubie rock, which resembles sandstone, is found in l rge de osits practical y at the surface of the ground, so that it is only necessary to remove the sod, in most instances, to expose the upper surface of the rock bed.

Referring now to the drawings which are made a part of this specification, and on which similar reference characters indicate similar parts;

Fig. 1 is a side elevation of my improved stone block sawing machine, showing the side of the machine on which the operator rides during the operation of the machine, and the positioning of the various controls in convenient reach of the operator.

Fig. 2 is a side elevation of the other side of the machine, illustrating the power plant and driving connections associated therewith.

F ig. 3 is an end elevation, partly in section, showing, in detail, one of the stone saw carriages, and its relation to the operative parts of the machine.

Fig. 4 is a fragmentary view of a portion of the machine which is not clearly shown in Fig. 3.

Fig. 5 is a diagrammatic view, illustrating the stone sawing machine inthe operation of making lateral cuts in the upper surface of the stone bed to'form the ends of the blocks. I

Fig. 6 is a view, similar to Fig. 5, of the opposite end of the quarry, illustrating the machine in the operation of making the last of the series of lateral cuts.

Fig. 7 is a diagrammatic view illustrating the machine equipped to make longitudinal cuts in thesurface of the stone bed.

Fig. 8 is a view, similar to Fig. 7, of the machine in the operation of making the last of the series of longitudinal cuts.

Fig. 9 is a diagrammatic view, illustrating the stone sawing machine equipped and in position to undercut the first line of blocks which has been formed by the steps previously illustrated.

Fig. 10 is a view, similar to Fig. 9, of the machine'in the operation of severing the last line of blocks.

Fig. 11 is a sectional view taken through the quarryto illustrate the machine in elevation and adjusted to the position illustrated in Fig. 9, and,

Fig. 12 is a diagrammatic plan view of the quarry illustrating the track rails laid on the lower surface of the stone bed from which blocks of stone have been removed by the steps, previously illustrated, a the machine removed from the rails, to show the layout of the opposite side of the quarry on the return operation of the machine across the quarry.

Referring to Figs. 1 to 41: inclusive, the portions indicated as A, represent the main frame of the stone block sawing machine, the base or chassis of which is composed of side channel irons 1 and 1, and end channel irons 2 and 2 which are bolted, or otherwise rigidly secured together, at the four corners. Journal boxes 3 are secured to the side channel irons 1 and 1 and provide bearings for axles 1 and 41- which extend transversely between the two channel irons 1 and 1. Secured on the axles 4; and 4 are wheels 5, adapted to travel on a conventional form of track rail 6.

Secured on the axle 4, between the side channel irons l and 1, is a. sprocket wheel 7 having a driving connection with the sprocket wheel 8, secured to the transverse shaft 9, through the sprocket chain 10. A gear 11 is secured on the outer end of the shaft 9 and is driven through a train of re dnction gears 12, 13, 1 1, 15 and 16 from the beveled gear 1?. The beveled gear 17 is in turn driven from the gear 18, secured to the lower extremity of the vertical drive shaft 1.9, which is mounted in journal bearings 20 and20 secured to the side of the main frame A. A frictional gear element 21, adapted. tooperate across the face of the cooperating frictional gear element 22, mounted on driven shaft 29, is slidably-mounted on the vertical drive shaft 19, and operatively connected therewith, through the key way 23, in the shaft .19. An operating lever,2- l, havinga yoke operatively engaging the frictional gear element 21, serves to adjust the gear element 21, relative to the gear element 22, by:means of the hand lever 26, to. rotate the vertical drive shaft 19 at variable speeds in eitherforward or reverse direc tions, as will be readily understood.

Centrally mounted on the main frame A is a motor llhaving. ajrotary drive shaft 27 which. carries a pinion 28. Transverse shafts 29 land 29 are suitably journaled on supports 30 and 30 in the frame on each side of the motor T3,; and carryrednctiongears 31 and 31 which mesh with the centrally arrangedpinion gear 28. Clutclrelements 2, slidably mounted on. the transverse shafts 29 and 29, are adapted to beinanually operated by theihand levers 33 and 33 to drive the shafts from the reduction gears 31 and 31.

Also mounted on the transverse shafts 29 and 29 are small pinionggears'3land 31 which mesh respectively with reduction gears 35 and 35, carriedlon driven shafts 36 and 36. ,Pinion gears 37 and 37 are also carried on theshafts36 and 36 which mesh with reduction gears 38 and 38,

cured on the ends of transverse shafts 39 and 39. Secured on the opposite ends of the shafts 39 and 39 are beveled gears 10 and 40 which mesh respectively with gears 41 and 41. The gears 41 and 41 are each formed with atubular extension 4:2 and 42 which are suitably journalled in the frame of the machine and through which vertical drive shafts 43 and l3, formed with key ways l and 4a, are adapted to extend. The vertical drive shafts as and a3, are each mounted in suitable journals a5 and 45, secured to the frame, and carry beveled gears 16 and 1-5 at their lower extremities. The beveledgears 46 and 16 mesh respectively with gears at? and 17 which are formed with tubular extensions 48 and 18, suitably journalled in guide frames which will be described hereafter. Transverse shafts 4t9 and 19 formed with key ways 50, are adapted to slide through the tubular extensions -t8 and 18 of the gears 17 and 17, and to be driven thereby.

On each end of the machine frame A, are provided vertical screw shafts 51 and 52 and 51 and 52 suitably journalled at their lower extremities in thrust bearings 53 and 51 and 53 and 5 1 (see Fig. at), and journalled adjacent their upper ends in the machine frame. Adjustably supported on each pair of the screw shafts 51 and 52 and 51 and 52, at each end of the machine frame, are transverse guide frames 55 and 55. These guide frames consist mainly of parallel channel irons 56 and 57 and 56 and 57, which extend out beyond the sides of the frame A, and are rigidly secured together by suitable cross members, and serve to slidably support saw carriages 58 and 58, as will be readily understood by reference to Figs. 1 and 3.

As shown in these Figures 1 and 3, the channel iron 56 and 57 and 56 and 57 are each formed with flange plates 59 and 60 and 59 and 60, secured to the lower edge thereof on which the saw carriages 58 and 58 are adapted to slide. Depending from the in ner end of each of'the saw carriages 58 and 58, are blocks 61 (see Fig. 3), through which transverse screw shafts 62 and ('2'. journalled in suitable hearings in the guide frames 55 and 55, are threaded. The transverse screw shafts -62 and 62 carry gears 63 and 63, which mesh respectively with gears 64; and er on counter-shafts 65 and 65. Beveled gears 66 and 66 are secured to the outer ends of they counter shafts and 65 and mesh respectively with gears 67 and 67 secured to the lower ends of the vertical drive shafts 68 and 68. The vertical driveshafts 68-an-d 68 are formed with key way s69 and 69, which are slidablv er.- gaged by frictional gear elements TO and 70., .mounted respectively on the vertical shafts, 68 and 68, and are adapted. to be fin driven at variable'speeds, in either forward or reverse directions, by frictional gear elements 71 and 71, mounted on the outer ends of driven shafts 36 and 36. The frictional gear elements 7 O and are adapted to be adjusted across the faces ofthe frie tional gear elements 71 and 71, by means of the levers 72 and 7 2 and hand levers 7 3 and 7 3.

Depending from points adjacent the outer end of the saw carriages 58 and 58' are a pair of spaced brackets 74 and 75 and 74: and 7 5, formed with journal bearings 76 and 77, at their lower end, in which are journalled shafts 78 and 78. The shafts 7 8 and 78 extend through the brackets 74L and 75 and 74' and 75, and are provided with means for adjustably securing stone saws 79 and 80, shown in dotted lines in Fig. 3. v

Secured on the shafts 78 and 78 between the pairs of depending brackets are sprocket wheels 81 and 81. and secured on the transverse key shafts l9 and 49, also journalled respectively in the saw carriages 58 and 58, are sprocket wheels 82 and 82. Sprocket chains 83 and 88 connect. the pairsof sprocket wheels 81 and 82 and 81 and 82 and serve to drive the shafts 78 and 78 and stone saws 79 and from the mechanism previously described. i

It will also be noted by reference to Figs. 1 and 3, that beveled gears 84 are also secured on the shafts 78 and 78 between the pairs of depending brackets and that swinging bracket members 85 and 8,5 are .journailed on the shafts 78 and 78. The swinging bracket members carry saw shafts 86 and 86 which are journalled respectively in said transverse brackets and extend at right angles to the shafts 78 and 78. Beveled gears 87, meshing with the beveled gears 84, on the shafts 78 and 78, are secured to the inner ends of the saw shafts 86 and 86 and serve to drive the saw shafts therefrom. Stone saws 88 and 88, shown in dotted lines in Figs. 2 and 8. are detachably secured on the outer ends of the saw shafts 86 and 86, and are adapted to operate in either of two positiols as is indicated in dotted lines in Fig. 8.

lVhen the machine is operated to make cuts at right angles to the track on which the nuichine is adapted to travel, the swinging brackets 85 and 85 are bolted to the depending supports 89 and 89. The supports .5) and 89 also serve to hold the swinging brackets 85 and 85 and saw shafts 86 and 8% extended when not in use. The stone saws 88 and 88 are also adapted for undercutting, and for such operation, the swing ing brackets 85 and 85 are swung to the dotted line position in Fig. 3, and secured by bolts to the depending bracket bearings 76 and 77.

heretofore explained the transverse I belts 99 and and 99 and 100.

guide frames 58 and 58 are adjustably supported on'vertical screw shafts 51 and 52 and 51 and 52. These'vertical screw shafts are adapted to be driven from the motor B to raise orlower the transverse guide frames bymeans'of worm gears 90 and 90, mounted respectively on the shafts 91 and 91. The

shafts 91and 91 extend transversely of the machine and are journaled in suitable bearings adjacent their ends. Loosely mounted on the shafts 91 and 91 are pulley wheels 92 and 98, eachhaving a clutch face 94 and Keyed to the shafts 91 and 91, between the pulley wheels, are clutch members 96, adapted to connect either of the pulley wheels 92 or 93, to the respective shafts by operation of the hand levers 97 and 97. Secured respectively on the transverse driven shafts 29 and 29 are pulley wheels 98 and 98, from which the loose pulley wheels 92 and98 are driven in opposite directions by The vertical screwshafts are thereby rotated to raise or lower the saw carriages by manually adjusting the levers 97 and 97".

The motor controller C, shown in Figs. 1 and 8, may be of any'well known or approved construction and needs no particular description herein.

Referring now particularly to Figs. 5 to 11 inclusive, I have illustratechmore or' less diagrammatically, the various steps in the operation of my improved stone block sawing machine in the quarry. As will be understood from the foregoing description, my machine is designed to cut predetermined size building blocks from Dubie rock beds, or from other natural occurring stone deposits, by making right angle cuts into the surface of the stone bed, to form the ends. and sides of the blocks. and thereafter undercutting the blocks thus formed, parallel to the surface of the stone bed, to sever the blocks therefrom.

It will also be understood that, prior to the operations just described, and illustrated in Figs. 5 to 11 inclusive, all sod and soil, covering the stone bed, are first removed to expose the upper surface, of the bed and to outline the limits of the quarry' Trenches indicated at D and E are then excavated along the full extent of parallel edges of the quarry as is shown-in Fig. 12. The trenches may be excavated in any convenient manner, and are made a sufficient width and depth to receive the stone saws 88 and 88, as will be understood from the following description.

Track rails 6 are laid on the surface of the stone bed, a short'distance from the edge of the quarry and parallel with the edge X of the trench D. The stone block sawing machine, designated as A. is then mounted at one end of the track rails 6. Stone saws, such as are. indicated in dotted lines, as 88 lift) and 88, are then secured on the saw shafts 86 and 86 and the swinging brackets 85 and 85secured to the depending supports 89 and 89, as is clearly shown in'Figs. 2, 5 and 6. The guide frames 55 and 55 are then adjusted vertically at each end of the machine frame A, by the operation of the vertical screw shafts 51 and 52 and 51 and 52, and the saw carriages 58 and 58 extended in the guide frames by the operation of the transverse screw shafts 62 and 62. The stone saws 88 and 88 are thus extended over the surface of the quarry and lowered into the trench I) in position to make lateral cuts into the surface of the quarry at right angles to the edge X of the trench, as is shown in Figs. 5 and 6. The hand levers 33 and 33 are then moved by the operator to engage the clutch elements 32, to drive the saws from the motor B, and the hand levers 7 3 and 73 moved to adjust the friction gear elements and '71, and 7 O and 71', to drive lhetransverse screw shafts 62 and 62. The saw carriages 58 and 58 are thus caused to travel in on the guide frames 55 and 55 drawing the saws 88 and 88 toward the machine A to make the lateral cuts F in the surface of-the quarry.

On the completion of each of the cuts F, the'rotationof the transverse screw shafts 62 and 62 is reversed to again extend the saw carriages and bring the saws out of the cuts and into the trench D. The machine A is then operated along the track rails 6, by the'motor B, to bring the saws into position for the next lateral cuts whereupon the operation just described is repeated.

It will be noted that each of the saws and saw carriages have independent controls, and are mounted on opposite ends of the machine frame. By this construction it is possible to operate either unit independently or in conjunction with the other, permitting a greater range of operation in the quarry at each setting of the machine.

In making the longitudinal cuts 'Y, the saws 88 and 88" are removed from the shafts 86 and-86" and pairs of saws, 79 and 80 and 79 and 80, such as are indicated in dotted lines in Figs. 3, 7 and 8, are adjusted on the saw shafts 78 and 78' and secured a predetermined distance apart. The distance between'the saws 79 and 80 and 79 and 80 determine the width of the stone blocks to be cut. The saw frames are then extended over the quarry to the positions shown in Fig. 7 and the saws operatively connected with the motor B as previously explained.

The saw frames are then lowered until the saws have cut into the surface of the stonebed a distance equal to the depth of the blocks-to be cut. The machine is then caused to travel along the track rails to the position A, indicated in dotted lines in Fig. 7. iThe-guide. frame. 55 is then raised to-free the saws 79 and 80 from the surface of thestone bed and the saw carriage 58 retracted to the dotted line position in this figure. The saws 79 and 80 are then lowered, as above explained, and the machine again operated to travel along the rails to the opposite end of the quarry. It will be noted that fourparallel cuts are made from this point to the end of the quarry; the saw carriages 58 and 58 being readily adjusted back and forth to complete each pair of cuts during the operation of the machine along the track rails. This operation is repeated back and forth from end to end of the quarry until a predetermined number of lines ofblocks have been outlined as is shown in Fig. 8.

The machine is then brought to the position on the rails illustrated in Figs. 9 and 11, with the saw carriage 58 extended to bring the swinging brackets 85 over the trench D. The stone saw 88 is again secured on the shaft 86 and the bracket 85 swung down to the dotted lines position illustrated in Fig. 3, and in full lines in Fig. 11, and secured by bolts to the bearings 76 and 77 of the depending brackets 74 and 75. It willbe understood that the saws 79 and 80 are removed from the shafts 78 for this operation of the machine. The guide frame is then adjusted to lower the saw into position to undercut the first line of blocks and the saw set into operation. The saw carriage is then retracted until the saw has undercut the surface to the first longitudinal cut Y, as is indicated in dotted lines in Fig. 9. The machine is now equipped and adjusted to be propelled along the rails to sever the first line of blocks. At the completion of each line,the saw carriage is again retracted a distance equal to the width of the blocks and the friction gear elements 21 and 22adjusted to reverse the operation of the machine along the rails.

When all the blocks in the range of the machine have been cut and removed, the track rails 6 are set back for another operation of the saws. These operations are repeated across the width of the quarry until the edge of the trench E is reached. The track rails are then moved forward on the previously out lower surface. and the machine mounted on the rails with its operatingside towards the trench E. In this position it will be seen that two layers of blocks are removed before the rails are again set forward for repeating the operations previously explained. The machine is then operated'from end to end and from side to side of the quarry during its operation of cutting the ends and sides of the blocks and severing them from the rock bed until all the available rock in the quarry has been out into predetermined size blocks and re m me 1 It will be noted from the above description of the machine and its operation in the quarry that, by adj ustably mounting the saw carriages on opposite ends of the machine and independently operating the elements of each saw carriage, the saws are operated to cut continuous kerfs beyond each end of the machine, and from one side of the quarry to the other at each setting of the machine. By this improved machine each operation back and forth across the quarry may be'of uniform length. The maximum amount of stone is thus cut into blocks at each setting of the machine, and the resulting Walls of the quarry are maintained substantially vertical, permitting the machine to cut itself into the stone bed until all available stone has been cut and removed.

What I claim is:

1. A stone block quarrying machine comprising a vehicle adapted to be propelled over the surface of a stone bed, saw carriages adjustably mounted on opposite ends of said machine, saws rotatably carried by said saw carriages to cut kerfs into the stone bed beyond the ends of the machine, and means for independently adjusting and operating said saws, whereby the work beyond the range of one saw is completed by the other at each setting of the machine.

2. A stone block quarrying machine comprising a vehicle adapted to travel over the surface of the quarry, means for operating said vehicle, guide frames mounted on each end of said vehicle to extend laterally therefrom, means for independently adjusting said guide frames vertically relative to said vehicle, saw carriages slidable horizontally in said guide members, means for independ- 3. A machine of the character described,

having saw carriages adjustably mounted on opposite ends of said machine, saw shafts rotatably mounted in said saw carriages to eX- tend at right angles to each other, means for adjusting one of said saw shafts relative to the other in each of said saw carriages, saws carried by said saw shafts, and means for operating the saws of one saw carriage independently of the saws of the other saw carriage, whereby the saws of said saw carriages co-operate to produce continuous cuts into the stone bed beyond the ends of said machine and from one side of said quarry to the other. o

4. A stone block quarrying machine comprising a vehicle adapted to be propelled over the surface of the quarry, a saw-carrying shaft adj ustably mounted on said vehicle to position its saw to make vertical cuts into the surface of the stone bed, and means for adjusting said saw shaft to position its saw to undercut the surface of the stone bed at substantially right angles to the first mentioned cuts made into the surface of the stone bed.

In testimony whereof I affix my signature.

NAGEEB T. HASHIM.

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