US1741322A

US1741322A - Stone-working machine

Info

Publication number: US1741322A
Application number: US210073A
Authority: US
Inventors: Peter S Legge
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-08-02
Filing date: 1927-08-02
Publication date: 1929-12-31
Anticipated expiration: 1946-12-31

Description

Dec. 31, 1929.

P. s; LEGGE STONE WORKING MACHINE Filed Aug. 2. 1927 Inven'ov:

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D. 31, 1929. P, s, LEGGE 1,741,322

STONE WORKING MACHINE Peis?- illegge Patented Dec. 31, 1929 PETER S. LEGGE, OF POMPTON LAKES, NEW JERSEY STONE-WORKING MACHINE Application filed August 2, 1927. Serial No. 210,073.

My invention relates to stone working machines, and particularly but not exclusively to one for cutting the cores of monolithic receptacles.

According to the common method of forming a monolithic receptacle a block of stone is channeled adjacent its four sides to a depth corresponding to the bottom of the inside of the receptacle, and the core is then removed by chipping or breaking out the material be tween the channels. My invention among other things comprehends the removal of the core in an unbroken state, and will be best understood from the following description when read in the light of the accompanying drawings of a specific embodiment of my'invention selected for illustrative purposes, while the scope of the invention will be more particularly pointed out in the appended claims.

In the drawings Fig. 1 is a planV of a machine constructed according to my invention;

Fig. 2 is a section on the line 2-2 of Fig. 1,

with parts omitted;

Fig. 3 is a section on the line 3 3 of Fig 1, with parts shown in elevation;

Fig. t is a section on the line 4-t of Fig. 'il g Fig. 5 is a section on the line 5-5 of Fig. Li;

Fig. 6 is a fragmentary view on an enlarged scale corresponding to the lower end of one of the right hand posts in Fig. 1,-with parte broken away; and Y Fig. 7 is a section on the line 3-3 of Fig. 35 1 of the lower end of the post at the lower left hand corner of that ligure.

Referring to the drawings the illustrative embodiment of the invention comprises four A sleeves 1, each of which` is provided with Ot diametrically opposite lateral bosses 3 and with diametrically opposite lateral bosses 5, the respective bosses 3 and 5 being arranged in quartering relation, but the bosses 5 being below the bosses 3. As shown the bosses are .V 4') perforated tor receiving the transversely arranged bars 7 and longitudinally arranged.`

bars 9 which hold the sleeves in spaced relation, said sleeves herein being at the corners of a rectangle. Conveniently the barsare slidably mounted in the perforations of the respective bosses and cooperate with set-screws 11, which construction permits the sleeves 1 to be adjusted relative to each other so as to. position them at the corners of different size rectangles.

As shown each sleeve has mounted thereinv a vertically slidable post 13, the several posts carrying longitudinally arranged racks 15 set into grooves 17 (Fig. 5) on the surfaces of t-he posts. As shown the sleeves opposite the racks are formed with longitudinally eX- tending slots 19 which the racks enter, thus splining the posts to the sleeves for prevent-` ing relative rotation between the two, while allowing the posts to slide in the sleeves. Meshing with each o-f the racks 15 is a `gear wheel 21 rotation of which is effective to raise and lower the posts. As shown the sleeves 1 are provided with laterallugs 23 which are slotted as indicated at 25 for receiving the gear wheels 21 and are perforated as indicated at 27 to form bearings for rotatable shafts 29. As shown the two gear wheels 21 at the left hand end of the machine, as viewed in Fig. 1, are splined to the shafts 29, the shafts for this purpose having longitudinal slots 31 and the gear wheels having lugs (not shown) slidably tting these grooves. It will be observed that this construction permits the two left hand sleeves 1, as viewed in Fig. 1, together with the gear wheels 21, to be slid toward the sleeves 1 at the right hand end of the machine for shortening the rectangular relation between the four sleeves without destroying the operative relation between the l shafts 29 and said gear wheels.

Conveniently the gear wheels 21 associated with the two sleeves 1 at the right hand end of the machine, as viewed in Fig. 1, are Xed to the shafts 29, and for rotating the shafts 9@ 29 in unison said shafts at their right hand ends are provided with bevel gears 33 meshing with bevel gears 35 respectively carried at the opposite ends of alay shaft 37, rotation of said lay shaft being effective to rotate the 9* shafts 29 and thereby move the posts relative to the sleeves simultaneously through equal distances. As shown the bevel gear 35 at the upper end of the shaft 37, as viewed in Fig. 1, is splined to said shaft, the latter having 1 the longitudinal slot 39 and the bevel gear having the extension 41 provided with a lug (not shown) fitting the slot, said extension 41 being journalled in a bracket 43 formed integrally with the adjacent sleeve 1. The extension 41 of the gear wheel 35, just referred to, may be held against longitudinal movement relative to the bracket 43 in any convenient manner, the spline connection betwen the gear wheel and lay shaft 37 permitting the two upper sleeves 1 and associated parts, as viewed in Fig. 1, to be moved toward the two lower sleeves of that ligure without destroying the operative relation between the f

meshing bevel gears

33 and 35 at the upper right hand corner of that ligure, which construction permits the rectangular relation between the sleeves, as viewed in Fig. 1, to be narrowed.

As shown the two posts 13 at the right hand end of the machine, as viewed in Fig. 1, at their lower ends carry grooved pulleys 45 journalled on horizontal spindles 47 on the end of a caster bracket 49, the spindle 51 of which bracket has a vertical axis and is swivelled in the end of the post.

rlhe posts 13 at the left hand end of the machine, as viewed in Fig. 1, are shown as provided with perforations 53 in which are mounted spindles 55, the latter l'iaving journalled thereon at their lower ends the hubs 57 of the grooved pulleys 59, the pulleys being prevented from longitudinal movement relative to the spindles by providing the latter with annular grooves G1 which receive transverse pins-63 carried by the hubs 57. At their upper ends the spindles 55 are screw threaded and are received in screw threaded perforations formed in nuts 65 non-rotatably carried by the upper ends of the corresponding posts, the spindles being provided with hand-wheels 67 for rotating them so as to raise the pulleys 59 into recesses 69 formed in the ends of the posts, felt dr like washers 71 being provided for preventing the entrance of sludge and water into the recesses.

As shown the two lower longitudinally arranged bars 9, as viewed in Fig. 1, are eX- tended to the right past the lower right hand sleeve 1 of that figure and carry a bracket 7 3 in which is journalled a shaft'7 5 having thereon a driving pulley 77 which may be rotated in any suitable manner, as for eX- ample by the driving belt 7 9 indicated in Fig. 3. On the shaft is shown a drum 81 aboutwhich are wrapped one 0r more turns of a suitable wire cable 83, the sleeve 1 at the lower right hand corner of the machine, as viewed in Fig. 1, having a grooved pulley 85 about which the cable is passed and led downward through a groove 87 on the adjacent post and through the perforation 89 of the spindle 51 to the adjacent grooved pulley 45, whence the cable is passed around the two grooved pulleys 59 at the left hand end of the machine, as viewed inV Fig. 1, and then vice herein indicated by the weight 9,3 having a roller 96 resting upon the cable adjacent the drum.

As shown one end of the driving shaft 75 is provided with a. chain sprocket wheel 97, and the lay shaft 37 with a larger chain sprocket wheel 99, about which sprocket wheels is passed a driving chain indicated at 101. Herein clutch mechanism 103, having the operating handle pivoted to a bar 107 carried by the transversely arranged bars 7 at the right hand end of the machine, as viewed in Fig. 1, is provided for clutching` the chain sprocketwheel 99 to the lay shaft -37 so that when the drum 81 is rotated the lay shaft will be rotated to cause the posts to be fed downward, as viewed in Figs. 2 and 3. Conveniently the lay shaft 37 may be provided with a hand-wheel 109 which may be used to rotate the lay shaft 37 upon disengagement of the operative connection therewith of the chain sprocket wheel 99 when the clutch 103 is released.

As one example of use to which the machine may be put, but without limitation thereto, vertical holes corresponding to the corners of the core to be removed from the stone, said holes having diameters suflicient to receive the posts 13, may be drilled in the stone, and the machine placed on the stone with the lengths of wires between the

pulleys

45 and 59 resting upon the upper surface of the stone. Rotation of the shaft 75 will then cause' the cable to move and cut a channel in the stone corresponding to three sides of the core, the posts being fed downward so as to advance the-cut either by the power or manual means herein described, shot and water conveniently being fed to the slot being cut to cause the cable more effectively to operate upon the stone. Then the posts have been fed to bring the cable to the bottom of the' holes formed at the corners corresponding to the corners of the core, the hand-wheels 67 may be turned to raise the pulleys 59 into the recesses 69, which will disengage the cables from said pulleys. Continued operation of the machine will then sever the bottom of the core, the tensioning device exemplified by the weight 93 taking up theslack in the cable as the cut severing the bottom of the core progresses, the clutch 103 being operated to disconnect the chain sprocket wheel 99 from the lay shaft 37 during this operation of severing the bottom'of the core, and the spindles 51 supporting the pulleys 45 swivelling during this operation to keep said pulleys and the adjacent horizontal portions of the cable in the same plane so as to prevent the cables from slipping from the grooves of said pulleys. After the bottom of the core is severed the machine may be removed and turned around to cut the remaining side of the core.

Although I have described a specified construction of machine made according to my invention, and one particular' Way of using the machine, it Will be understood that Wide deviations be made from these without departing from the spirit of the invention.

Claims:4

l. A machine for use in cutting mono lithic receptacles having, in combination, saw supporting means adapted to enter holes formed in the stone at the corners of the core, means for feeding said supporting means into said holes, and pulleys Icarried by said supporting means for guiding a flexible saw arranged to cut simultaneously consecutive naides of said core.

2. A machine Y for use in cutting monolithic receptacles having, in combination, savT supporting means adapted to enter holes formed in the stone at the corners of the core, means for feeding said supporting means into said holes, and pulleys carried by said supporting means for guiding a flexible sa-W arranged to cut simultaneously opposite sices and an end of said core.

3. A machine for use in cutting monolithic receptacles having, in combination, saw supporting means adapted to enter holes formed in the stone at the corners of the core, means for feeding said supporting means into said holes, pulleys carried by said supporting means for guiding a flexible saw arranged to cut the sides of said core, and means cooperating With a plurality of said pulleys for disengaging said saw therefrom While said pulleys are in said holes.

4. A machine for use in cutting monolithic receptacles having, in combination, saiv supporting means adapted to enter holes formed in the stone at the corners of the core, neans for feeding said supporting means into said holes, pulleys carried by said supporting means for guiding a flexible saw arranged to cut simultaneously consecutive sides of said core, and means cooperating with a plurality of said pulleys for disengaging said saw therefrom While said pulleys are in said holes.

5. A machine for use in cutting monolithic receptacles having, in combination, saw supporting means adapted to enter holes formed in the stone at the corners of the core, means for feeding said supporting means into said holes, pulleys carried by said supporting means for guiding a flexible saw arranged to cut simultaneously opposite sides and an end of said core, and means cooperating With a plurality of said pulleys for disengaging said saw therefrom While said pulleys are in said holes.

6. A machine for use in cutting monolithic receptacles having, in combination, a support, posts slidably carried by said support at the l'corners of a polygon, pulleys on said posts at one end thereof for guiding a flexible saw, and means for simultaneously feeding said posts relative to said support.

7. A machine for use in cutting monolithic receptacles having, in combination, a plurality of posts, pulleys carried by one end of each post for guiding a flexible saw, guides in Which said posts are slidably mounted for longitudinal movement, and a support for said guides having provision for adjusting them relatively to each other to position them at the corners of different size polygons.

8. A machine for use in cutting monolithic receptacles having, in combination, a plurality of pulleys for guiding a flexible saw of the cable type, means for supporting said pulleys While positioned in holes formed in the stone at corners of a polygon, and means for simultaneously driving said saw and feedii said pulleys along said holes While maintaining said pulleys substantially' in common plane.

9. A machine for use in cutting monolithic receptacles having, in combination, apair of pulleys for supporting and guiding a flexible sauT for severing the bottom of the core, means for supporting said pulleys at the bottom of holes formed at corners of said core, said pulleys beingV swivelled on axes substantially at right angles to the plane of the bottom of said core.

l0. A machine for use in cutting monolithic receptacles having, in combination, a frame, sleeves carried by said frame at they four corners of substantially a parallelogram, posts slidably mounted in said sleeves, means for sliding said posts simultaneously in said sleeves, pulleys on the ends of said posts, said posts and pulleys adapted to be inserted into holes in the stone at the corners of said parallelogram, passages for a flexible saw formed in one or more of said posts, and means including a drum and pulleys carried by said frame for driving said flexible saw and guiding it from the exterior of the stone to said pulleys on the ends of said posts.

11. A machine for use in cutting monolithic receptacles having, in combination, a frame, sleeves carried by said frame at the four corners of substantially a parallelogram, posts slidably mounted in said sleeves, means for sliding said posts simultaneously in said sleeves, pulleys on the ends of said posts, said posts and pulleys adapted to be inserted into holes in the stone at the corners of said parallelogram, passages for flexible saw formed in one or more of said posts, means including a drum and pulleys carried by said frame for driving` said flexible saw and guiding it from the exterior of the stone to said pulleys on the ends of said posts, and means operative from the exterior of the stone while said posts are in said holes for disengaging the saw from one or more of said pulleys on the ends of said posts.

12. A machine for use in cutting monolithic receptacles having, in combination, a trame, sleeves carried by said frame at the four corners of substantially a parallelogram, posts slidably mounted in said sleeves, means for sliding said posts simultaneously in said sleeves, pulleys on the ends of said posts, said posts and pulleys adapted to be inserted into holes in the stone at the corners of said parallelogram passages for a flexible saw formed in one or more ot said pos s, and means including a drum and pulleys carried by said frame for driving said flexible saw and guiding it from the exterior oit the stone to said pulleys on the ends of said posts, the pulleys on the ends of a. pair oit adjacent posts being mounted for swivelling on axes extending lengthwise of said posts.

13. A machine 'for use in cutting monolithic receptacles having, in combination, a frame, sleeves carried by said frame at the tour corners of substantially a paiallelogram, posts slidably mounted in said seeves, means for sliding said posts simultaneously in said sleeves, pulleys on the ends of said posts, said posts and pulleys adapted to be inserted into holes in the -stone at the corners of said parallelegram,

passages for a iiexible saw formed in one or more of sald posts, means including a drum 'and pulleys carried by said iframe for driving said iexible saw and guiding it from the exterior of the stone tosaid pulleys on the ends ot said posts; the pulleys en the ends of a pair of adjacent posts being mounted for swivelling on axes extending lengthwise of said posts, and means operative from the exterior of the stone while said posts are in said holes for disengaging the saw from the pulleys at the ends of the remaining pair of posts.

In testimony whereof, I have signed my name to this specification.

PETER, S. LEGGE.