US1174597A - Stoneworking-machine. - Google Patents

Description

H. H. MERCER.

STONEWORKING MACHINE.

APPLICATION FILED AUG- 18, m0.

1,174,597. Patented Mar. 7,1916.

3 SHEETS-SHEET l- Milan/eases.

.[nvewtort 1%w/ gLI-mere er 3%6w4-k 0 g maiw 21 THE COLUMBIA PLANOGRAPH co., WASHINGTON, D, c.

H. H. MERCER. STONEWORKING MACHINE.

APPLICATION man AUG, 18. 1910.

1 1 74,597. Patented Mar. 7, 1916.

3 SHEETS-SHEET 2.

witnesses THE COLUMBIA PLANOGRAPH c0., WASHINGTON. n. c,

H. H. MERCER.

STONEWORKING MACHINE.

APPLICATION FILED AUG\l8,1910.

1,174,597. I Patented Ma1'.7,1916.

3 SHEETS- SHEET 3.

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Invmtar uhltnesses I flenrgflmereer -T %Q by it??? awaw I THE COLUMBIA PLAtjOuRAPl-l co., WASHINGTON, n. c.

UNTTED STATES PATENT OFFICE.

HENRY I-I. MERCER, 0F CLAREMONT, NEW HAMPSHIRE, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO SULLIVAN MACHINERY COMPANY, OF BOSTON, MASSACHUSETTS, A

CORPORATION OF MASSACHUSETTS.

STONEWORKING-MACHINE.

Specification of Letters Patent.

Patented Mar. 7, 1916.

Application filed August 18, 1910. Serial No. 577,752.

To all whom it may concern Be it known that I, HENRY H. MERCER, a citizen of the United States, and a resident of Claremont, county of Sullivan, State of New Hampshire, (whose post-office address is Claremont, New Hampshire) have invented an Improvement in Stoneworking- Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to stone working machines, the purpose thereof being to increase the efliciency and extend the utility of such machines.

This invention as to many of its important features may be applied to various purposes and to stone working machines of widely diiferent types, and to machines widely different from the one herein described. For purposes of illustration, however, it is here shown as applied to a stone channeling machine constructed as a track channeler useful for cutting not only the usual channel groove, but also for corner cutting, for wall cutting, and for various other purposes.

My invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings: Figure 1 is a front elevation with parts of the machine removed, showing a stone channeling machine embodying one form of my invention; Fig. 1 is an enlarged detail of the sliding shoe and its guides; Fig. 2 is a plan partly in section showing the channeling machine of Fig. 1; Fig. 3 is an elevation on an enlarged scale showing the clutch lever for the truck driving mechanism; Fig. 4 is an end elevation partly broken away showing the channeling machine of Figs. 1 and 2; Fig. 5 is a sectional elevation showing details of the trunnion boX for the standard and the feed screw gearing; Fig. 6 is a rear elevation of the trunnion box; Fig. 7 is a side elevation in section on the line 7-7 in Fig. 2 showing the speed change gearing; Fig. 8 is a section in plan on the line 8-8 in Fig. 4 showing the standard guide shoe and its connection thereto; and Fig. 9 is an elevation in section on the line 99 in Fig. 2 showing other parts of the change speed gearing.

Referring to the drawings and to the em bodiment of the invention there submitted for illustrative purposes, I have shown a stone working machine, herein in the form of a track channeler, supported upon a main support comprising a frame work or truck 1. The latter is provided at its opposite ends with two transverse shafts or axles 2, each carrying near its outer ends flanged truck vwheels which are adapted to run upon the rails 4 customarily laid upon the quarry bottom to permit the advance of the machine when cutting in the usual fashion.

The machine is provided with suitable cutting applicances and with actuating means therefor, being herein equipped for that purpose with a tool or tools of the percussive type. Any suitable cutting appliances may be employed, but herein there is utilized a reciprocatory cutting tool associated with a compressed-air, direct-acting engine, the latter supplied with pressurefluid from a suitable source, not shown, andhaving the cylinder 5 (Fig. 4:) to which is connected the piston rod 6 and the cross head 7. The latter has clamped thereto a suitable tool or tools such as the gang 8, the cutting ends of the latter being given a reciprocatory movement toward and from the bottom of the channel groove as the engine piston is reciprocated. The cross head 7 reciprocates in the cross head guides 9, the latter being provided with gibs 10 which overlie the cross head and being rigidly connected to the cylinder 5 to form therewith an actuator frame or carrier adjustable as a unit toward or from the work.

The sliding actuator frame which includes a tool actuating engine and cross head guides, together with the supported cross head and attached tools, is guided during its sliding movement upon a standard or in termediate support 11, which latter presents finished webs or guideways 12 to receive the inner finished walls of the frame, gibs 13 being secured to the frame to overlie the inner edges of said webs and retain the sliding frame thereon. The sliding actuator frame is shown removed in Fig. 1 for the sake of clearness.

The standard is supported near' its lower 7 end upon a trunnion box l t, the latter being slidably mounted upon the trunnion bar 15 secured at the side of the truck so as to permit the cutting appliances to overhang the side thereof. structed and other provision is so made that the standard may be held fixed in position, either upright or oblique, and at any part of the trunnion bar, although ordinarily at one end thereof, as represented in dotted lines in Fig. 1, so that by traversing the truck the ordinary channel groove may be cut in the open, or it may be connected to slide back and forth with the trunnion box on the trunnion bar and cause the cutting tools to describe a path suitable for reaching in under an overhanging side wall of the quarry and cut the corner.

Referring first to the construction of the trunnion box, it will be seen that the latter is split at 16, whereat it is provided with shims, such as pieces of tin, so that when clamped by means of the clamping bolts 17 it has a sliding fit upon the trunnion bar 15. The trunnion box carries an upright bracket 18 which is also split and receives the thread ed sleeve 19, which latter has the tapered bearing sleeve 20 projecting from the bracket and providing a bearing seat or pivotal support or connection (Fig. 5) for the standard 11. The interior of the sleeve 19 has a hexagonal opening which can be engaged by a suitable tool to turn the sleeve and thereby take up the wear at the tapered bearing seat. Near its upper end the standard receives support from a fixed upright frame 21, the latter provided with two feet or branches which have boxes 22 journaled upon opposite ends of the trunnion bar 15. The two branches of this frame converge and unite near the central plane of the machine and provide a vertical guideway or slot having beveled walls 23 (Figs. 1, 1 and 8) on which there is guided for vertical sliding movement a guiding shoe pivotally connected to the standard. The guiding shoe comprises (see Figs. 4: and 8) a pair of beveled plates 24 bolted together by the clamping bolts 25 so that the shoe is readily detachable, the two plates being preferably separated by shims, whereby the shoe can be adjusted at all times to fit thebeveled guides. The standard is swiveled to the shoe by any suitable means such as the stud 26 riveted to the standard and having the bearing portion 27 in the shoe.

The support 21 which provides the guide for the shoe may be tilted back for adjustment about the trunnion bar so as to adjust the plane of swinging movement, but is rigidly held in its adjusted position by one The trunnion box is so c0nor more brace members such as the adjustable brace rod 28. lVith the standard con-' a. reciprocatory movement through a curved path as represented in Fig. 1 by merely re ciprocating the trunnion box l l on the trunnion bar 15, the tool gang thereupon moving from the full line position shown in Fig. 1 to the dotted line position therein shown. The curved path described by the cutting edges of the tool gang (as shown in Fig. 1) is not a true arc, but flatter than the arc of a circle. Such flattened curve, however, is preferable, it being found that a more rapid cutting action can be secured through a blow which is slightly inclined to the bottom of the channel groove and not exactly perpendicular thereto. The shape of the support 21 and the location of the standard when it commences its swinging movement causes the cutting tools to reach in under the overhanging side wall and secures the full available reach of the tool gang in cutting the corner.

During the operation of the machine as described, the trunnion box is given a re ciprocatory movement on the trunnion bar by any suitable means, the truck driving mechanism being herein utilized for that purpose in conjunction with connections about to be described. To secure the movement of the trunnion box a power transmission chain 29, which (see Figs. 2, 5 and 6) isclamped to the trunnion box by means of an appropriately shaped cap member 30 screwed to the chain scat block 31 so that one or more links of the chain are pinched and gripped between the cap piece and the seat.

In order to preserve substantially the same horizontal path of chain movement irrespective of the tilting adjusting of the standard, provision is made for angular adjustment of the chain seat block 31 about the trunnion block. To provide for this the chain seat block has-a segmental seat 32 on the trunnion block, the latter being provided with a T-slot 33 (see Fig. over which the chain seat block has sliding movement. It is therefore possible to tip the standard and the trunnion block back while preserving the same position of the chain seat block to the chain, the block being slid along on the segmental seat and clamped to a dififerent position by means of the clamping bolts 35 which engage with nuts 36 working in the T-slot The power transmission chain 29 which is preferably endless extends substantially parallel with the trunnion block 15 to and about idler sheaves 37 at opposite ends of the machine and thence to a driving sheave 38 at one end of the machine, there being preferably employed at some portion of the chain an idler sheave such as the sheave 39 adjustably mounted so that the tension on the chain can be adjusted.

Referring now to the truck driving mechanism which is utilized to drive the chain driving sheave 38, the same is of usual construction as to its main features, including an air or steam engine 40 arranged to drive the beveled gear'al which is fast upon the main engine crank shaft e2. The beveled gear 11 meshes with similar but opposed beveled gears 13 and ll, the latter being loose upon the countershaft +15, but adapted to be severally clutched to or unclutched therefrom by means of the sliding clutch members 46 and 47 of common construction. The latter are connected to the forked arms 48 and 49 respectively, which are connected to the slide shaft 50 operated by the clutch lever 51, so that by movement of the clutch lever the countershaft may be moved in one direction or reversed to turn in the opposite direction, or held at rest.

In the use of the machine as a common channeler the truck driving movement is transmitted from the counter-shaft 15 to the truck driving shaft 52 by means of the pinion 53 fast on the countershaft 45, but meshing with an idle gear 54, shown dotted in Fig. 9, which latter drives the larger gear 55 fast upon the truck driving shaft 52. The truck driving shaft is provided at opposite ends with worms 56 which mesh with worm gears 57, the latter secured to the driving axles so that through the described mechanism a truck driving movement is imparted from the engine 40 in either direction to the truck wheels.

Vhen it is desired to swing the tool while cutting, the pinion 54, which is removably mounted upon the stud 58 in the bracket 59, is removed therefrom to disconnect the gears 53 and 55 and is applied to the shaft 60, which is carried in the bracket 61 and has also fixed thereto the gear 62. The gear 62 meshes with a gear 63 mounted upon the sleeve shaft ea, the latter arranged concen trio with the counter-shaft -15, but operatively disconnected therefrom. The sleeve shaft 6st drives the gear 65, the latter meshing with an idle gear 66 which in turn engages the gear 67 secured to the shaft 68. The driving movement is transmitted from the shaft 68 to the worm 69 and thence to the worm gear 70 and thereby to the driving sheave 38 to move the chain.

As the cut deepens the angular velocity of the swinging tool gang should be decreased so that the lineal velocity of the cutting edges will not be too great to roughen or coarsen the cut. I therefore preferably provide speed variation means between the source of power and the swinging mechanism so that the swinging movement of the tool gang slows down as the cut deepens.

This may be accomplished in various ways,

but herein I have provided a series of change gears of which the gear 67 is one, so that by bringing the gears 67, 71, 72 and 73 successively into engagement, the swinging movement of the tool gang may be varied.

To provide for shifting the gear 66 into engagement with the variously dimensioned speed change gears, gears 66 and 65 are carried on a sleeved bracket 7 at which is adapted to be slid along to different positions along the sleeve shaft 6i and there clamped by the clamping bolt 7 5, the latter engaging the frame 76 which is swiveled for tipping movement about the axis of the shaft 64:. This frame can be tipped to different positions to engage the gear 66 with the several gears 67, 71, 72 and 73 by means of an arm 77 having the handle '78, the arm having a' clamping bolt 79 adapted to engage with the slot 80 formed in a lug 81 fixed on the frame. The bracket 61, as well as the bracket 59 are both carried by the tilting frame 7 6 so that the gear 54: is maintained in mesh with the gear 53 to whatever position the frame may be adjusted.

The same mechanism for feeding the cutting appliances toward. or from the work may be employed in the operation of the machine as a corner cutter, as in its operation as an ordinary channeler.

Referring to Fig. 2, the truck driving shaft has loosely mounted thereon two gears 82 and 83 which mesh with gears connected directly to the beveled gears 43 and it re spectively. The gears may be clutched either one at will to a sleeve 84, also loose 'on the shaft 52, but carrying the beveled gear 85 which meshes with the beveled gear 86 connected to drive the inclined feed screw shaft 87 (see Figs. 4 and The latter has a telescopic connection 88 to drive the beveled gear 89 meshing with the gear 90 which latter turns the feed screw 91 and feeds the cutting appliances up or down on the standard. The sleeve 84: and gear 85 may be clutched to either gear 82 or 83 at will by means of the sliding clutch nembers 92 and 93, respectively, which are operated. by the slide rod'9 1 and lever 95. By moving the lever 95, therefore, the feed screw may be turned in either direction at will or held fixed. The feed screw shaft 87 not only has a telescopic joint at 88, but is also provided with joints at 96 and 97 which are connected to the gear 89 for universal movement to permit the assumption by the gear 89 of all positions requisite for the swing ing movement indicated in Fig. 1, while at the same time preserving the driving connection from the gear 86. This universal driving connection between the feed screw on the standard and the feed screw driving mechanism on the truck is also preserved for all angles of inclination to which the standard may be adjusted bymeans of an adjustable segmental bracket 98 (Fig. 5) on which the gear 86 is journaled, such bracket being constructed to swivel about the truck driving shaft 52 and maintain the gear 86 in mesh with the gear 85 under all conditions of adjustment. The bracket 98 may be adjusted to conform to an adjustment of the standard, being constructed to engage with circular shaped guides on the bracket 99 and to be clamped thereon in any selected position of adjustment.

lVhile the truck may be moved, if desired, during the swinging movement of the tool, in the described embodiment of my invention, I preferably clamp the same fast to the rails 4 and disconnect the truck driving mechanism from the driving axles at such time as the machine is used as a swinging cutter. Any suitable means may be employed for this purpose, but herein I have shown rail clamps 100 provided at each corner of the machine in such position that when tightened they grip the flanges of the rails and hold the machine fast.

When the machine is employed as an ordinary channeler with the standard held rigidly, it may be rigidly supported on the :t'rame as represented in dotted lines in Fig. l by a rearwardly extending brace 102 connected to the opposite side of the truck and the second laterally extending brace 103 connected to the central part of the main fixed support 21.

It is to be understood that the invention herein described is not limited as to its broad features to embodiment in track channelers or in channeling machines of any specific type. Furthermore, while there is herein shown and described for purposes of illustration one specific embodiment, it is to be further understood that the latter is not limited to the details of construction herein shown nor to the application of the invention herein illustrated, nor to the specific form of machine to which the same is shown as applied, but that extensive deviations may be made therefrom without departing from the spirit of the invention.

Claims:

1. In a channeling machine, the combination with a main support consisting of a truck, a channeling tool, a second support on which the tool is pivoted, means for reciprocatively moving said second support on the truck, and means connected to said tool to cause the said movement of said second support to impart a swinging movement to the tool.

2. In a channeling machine, the combination with a main support consisting of a truck, truck driving mechanism for propelling the truck, a tool, a second support to which the tool is pivotally attached, means for moving said second support on the truck for reciprocatively through the truck driving mechanism, and means connected to said tool to cause said movement of said second support to impart a swinging movement to the tool.

3. In a channeling machine, the combination with a movable main support, a tool, a second support on which the tool is pivoted, means for reciprocatively moving said second support on the main support, and means connected to the tool to cause the reciprocative movement of said support to swing the tool thereon.

1-. In a channeling machine a support, a tool carrier consisting of a standard, a tool mounted thereon, a pivotal connection be tween said standard and said support, means for reciprocz tively moving said pivotal connection on said support, and means connected to the said tool to cause the said movement of said connection to impart a swinging movement to the tool.

5. In a channeling machine the combination with a main support, a tool carrier consisting of a standard, a tool mounted on said standard, a pivotal connection between said standard and said main support, means for moving said pivotal connection, and means for holding another part of said standard to cause the swinging of the tool during the movement of said pivotal connection.

6. In a channeling machine the combination with a support, a trunnion bar thereon, a trunnion box movable on said bar, a tool carrier comprising a standard having pivotal connection to the trunnion box, means moving said trunnion box on said trunnion bar, a sliding guide, fixed guideways therefor, and a pivotal connection between said standard and said sliding guide.

7. In a channeling machine, the combination with a main support consisting of a truck, a second support on the truck, a tool carrier pivotally mounted on said second support, and means for moving said second support bodily on the truck and simultaneously moving said carrier about the support.

8. The combination with a channeling ma chine having a main support, a second support, a tool carrier pivotally mounted there on, a tool, power driven means on the main support for reciprocatively moving the second support on the main support, and means connected to the carrier to cause the said movement of said second support to swing the tool carrier.

9. In a channeling machine the combination with a support, a tool carrier thereon, a pivotal movable connection for said carrier, means for reciprocatively moving said connection on the support relatively to the work, and means for simultaneously holding said carrier fixed in relation to the work at another point in its length to cause the tool to execute a swinging movement.

10. In a channeling machine, the combination with a main support, a tool carrier thereon, a movable support on the main support on which the carrier is pivoted, powerdriven means for reciproca'tively moving said movable support on the main support and swinging the tool, and means for adjusting the plane of swinging movement.

11. In a channeling machine, the combination with a main support consisting of a truck, a channeling tool, a second support on which the tool is pivoted, and power driven means for reciprocatively moving said second support longitudinally on the truck and simultaneously swinging the tool.

12. In a channeling machine, the combination with a main support, of a tool carrier, a pivot on which said carrier is held, means for moving said pivot bodily on the main support and for simultaneously moving the carrier about the same.

18. In a channeling machine, a main support consisting of a truck, a motor, truck driving mechanism driven thereby, a tool carrier, a pivot on which the carrier is held, tool swinging mechanism, including means for moving said pivot on the truck and speed change gearing between said motor tion with a main support consisting of a truck, of a tool carrier, a pivotal connection for the tool carrier movable on the truck, means for moving the pivotal connection and means to restrain the movement of the v carrier at another point on the truck to cause the same to swing about its pivot.

15. In a channeling machine, the combination with a main support, of a tool carrier, an intermediate support on which the carrier is mounted for swinging movement, means to move the last named support on the main support, and means to restrain the tool carrier at another point on the main support to cause the same to swing as the intermediate support is moved.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HENRY H. MERCER.

Witnesses:

THOMAS B. BOOTH, ROBERT H. KAMMLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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