US1118893A - Tool-actuating mechanism. - Google Patents

Description

A. BALL 6L H. H. MERCER.

TOOL ACTUATING MEGHANISM.

APPLICATION ULEB MAY 2o, 1007.

THE NORRIS PETERS COV, PITO-LITHKL, W/LSHINGIUNA D. L

A. BALL da H. H. MERCER.

TOOL AGTUATING MECHANISM.

APPLICATION FILED MAY 20, 1907.

Patented N0v.24. 1914.

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A. BALL &' H. H. MERCER. TOOL AGTUATING MEGHANISM. APPLICATION FILED MAY zo. 1907.

1,1 18,893.. Patented N0v.24,1914.

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ZL/Zi' THE MORRIS PETERS CO., PHOTU-LITHG., WASHINGTON, D4 C A. BALL & H. H. MERCER.

TOOL AGTUATING MBCHANISM.

APPLICATION rILBD MAY zo, 1907 1,1 18,893. Patented N0v.24.1914.

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ALBERT BALL AND `IllllNllSZ' H. MERCER, OF CLABEMONT, NEW HAMPSHIRE, ASSIGNORS,

`LB'SZMESNE ASSIGNMENTS, TO SULLIVAN MACHINERY `(LOIVIIPANY,,OF BOSTON, MAS- SACHUSETTS, A CORPORATION OF MASSACHUSETTS.

TOOL-ACT'UATING MECHANISM.

Specification of Letters-Patent.

`Patented N ov. 24, 1914;

Application filed May 20, 1997. Serial No.,374;,77.

ying like parts.

This invention relates totool actuating mechanism which has marked `advantages in connection ,with quarrying oizfmining machinery,` such, for example, as channeling machines, altl'iough in many of its features it is applicable to other `forms and types of tool actuating mechanism.

In order that the principles of the invention may be made fully apparent, we have for illustrative purposes disclosed certain forms or embodiments thereof in the accompanying drawings, it being understood that the invention may be otherwise embodied than as here` shown.

ln the said drawings: Figure l is a front elevation of a channeling machine having our invention appliedthereto; Fig. 2 is an end view of such channeling machine having applied thereto the .form of our invention represented in Fig. l; Fig.` 3` is atop detail plan view partly in section `of the form of our invention disclosed in Fig. l; Fig. nl is a' front elevation of a channeling machine hav-ing another form of our invention applied thereto; Fig. 5 is an end elevation of a channeling `,machine having applied `thereto the :form of our invention disclosed in Fig. 4l; Fig. 6 is a vertical transverse section of the tool holding means preferably used with the forms of our invention here disclosed; and Fig. 7 is a section of the cylinder in plan taken on the line 7-7 in Fig. 6.

Ou r invention contemplates the provision of tool actuating mechanism for a direct (fzonnected tool such, for example, as the cutting tool of a channeling machine, or the like, whereby the driving motor may be mounted in convenient proximity to the tool and so connected thereto as to actuate the tool in its reciprocatory movement to and from the work through the intervention` of a ALBERT BALL and `suitably associated elastic medium, such as compressed air.

leferring more specifically to the drawings and first to the type of invention shown 1n Figs. l and 2 thereof, we have there shown ourinvention `as applied to a standard form of channeling machine, the main frame of any suitable" ype or construction, whereon the operating parts are mounted being indicated at l, and preferably having axles 2 supported thereon, whereon are mounted truck wheels 3 for the purpose of `traversing the machine upon thetrack cus-` tomarilyemployed. Mounted in any suitable manner uponthe main frame l is a verti xally disposed standard el. Herein We employ a trunnion or rock shaft 5 horizontally and longitudinally disposed insuit- `able bearings in the main frame for rocking or tilting movement. Upon said trunnion or rock shaft is mounted a swivel box ,o (sce Fig. Q) to which is suitably connected the standard Ll, whereby said standard may be rocked or tilted to any suitable or desired angle upon the -mvain frame to present the tool or tools to the work at the desired angle. The swivel box (3 is preferably so connected with thetrimnion or rock shaft 5 as to be longitudinally adjusted thereon, whereby said standard may be moved from side to side of the machine. Any suitable number of preferably adjustable braces 7 (see Figs. 1 and 2) -may be employed to support the standard 1l in the desired position lupon the main frame, such brace or braces `havingpreferably pivotal connection with the standard and the main frame.

llountml-upon ther standard Ll: `and preferably for vertical adjustment thereon isa frame 8. While said frame may be connected for vertical movement ,in any suitable manner, herein we have indicated (see Fig. 3) gibs 9 connecting thefrarneto the standard for vertical sliding movement. Any suitableuneaus may be employed to adjust the frame upon the standard, such as the vertically .disposed screw 10 mounted in the standard l in suitable bearings and having at the upper endthereof a bevel gear 11 whercwith `meshes a bevel pinion 12`supported in a suitablelnaoket and operated `by a gear 13 preferably formed .las a sprocket gear, so that power may be `applied thereto in any suitable manner, as from the motor, for moving the channeling machine upon its track, such gear preferably having"` a handle 14 for manual control or operation of said screw. The screw w rhs through a suitable nut 15 in the frame S indicated by dotted lines in Fig. 2, whereby as the work progresses or as occasion may require the screw 10 is rotated vertically to adjust the sliding frame 8, thereby advancing the tool and its associated parts toward the work.`

Any suitable tool holding means may be employed in connection with the associated parts of our invention. Herein there is shown in F ig. 6 a cross head 16 in which any suitable tool or tools such as drills 17 may be mounted by proper binding mechanism, such as taper bolts 18 permitting suitable tightening of a gang of drills. rl`he cross head is mounted for `reciprocation in any suitable manner upon the frame 8. F or this purpose, there are provided vertically disposed angle gibs 1T secured by bolts 18 passing through the sliding frame S and back gibs 9 shown in Fig. 3. rlhe cross head is reciprocated in a manner to be hereinafter described between the gibs 17 and the sliding frame.

ln order to provide for the elastic or compressed air medium between the tool and the driving motor, to be described, any suitable arrangement of parts may be provided, but we have herein arranged a coperating cylinder and piston, the one part connected to the tool and the other to be reciprocated by the motor. Associated with these parts there are preferably provided means for building up and maintaining within the cvlinder a pressure of air or other fluid, through the'medium of which the reciprocatory driving parts are thereby obliged to act in reciprocating the tool. In this connection we have also provided a receiving chamber communicating through a suitably valved passage with one end of the cylinder, so that the action of the driving motor on its initial operation will effect a building up ofthe pressure in said chamber, which latter is in communication with the opposite sides of the said cvlinder. Vilhile the tool may be, if desired, connected to the piston and the cylinder to the motor, in the present form of our invention we have connected the piston to the motor and the cylinder to the tool, the cylinder, moreover, being a part of and carried by the cross head 16.

In the illustrated embodiment of our invention. the lateral cross head guides or blocks 19 are cored to provide a longitudinal receiving chamber 19 and the bodv of the cross head casting is also formed to provide a cylindrical recess 20 having a cylinder 21 fixedly secured therein and resting at its lower end upon a head formed above the transverse web 56 of the cross head 16. The cylinder vis provided with a removable flangedh'ead 227 vertical bolts 23 passing through the said web of the cross head being provided to secure said cylinder head firmly in position. lWhile a single cylinder and piston may be employed, in the present form of our invention we have shown a pair of pistons operating respectively in two lseparate sections or chambers 53 and 54 of the cylinder, this acting to increase the lifting power of the motor and assist the initial building up. Preferably we arranged the pistons 24 in tandem upon the same piston rods as indicated in Fig. 6. Vie preferably provide within 4 the cylinder 21 av division head 25 held in place by a cylindrical lining 26, which is in turn held in place by the head 22.

ln order to build up the pressure in the cylinder to a point suitable to give the necessary lifting and striking power, fluid may be compressed and delivered to the receiving chamber 19 in any suitable manner. Hereinywe have indicated the piston rod 27 as having a. longitudinal air admission passage 28 opening into the atmosphere at its upper end near the crank pin and provided at its lower end with a ball or other suitable valve 29. rlhe lower cylinder chamber 54 is placed in fluid connection with the receiving chamber 19y by means of a passage 80 having a ball or other suitable valve device 31 therein for preventing reentrance of the vcompressed fluid tol the lower or compressingend of the said cylinder chamber 54. The receiving chamber 19 is in free communication with the upper chamber 58 and with the upper part of the chamber by means of suitable upper and lower passages 33 respectively.

The upper end of the passage 2S in the piston rod 27 being open to the admission oi air or other fluid,`as the piston is raised,y the air passes the ball valve 29 and enters the space beneath the lower piston head 24. As the piston rod 27 is forced downward, the air beneath the lower piston head. is compressed and driven past the ball check valve 31 into the compression'chamber 19, which preferably is provided with a safety or relief valve 34 of any suitable type,y

which may be adjusted to permit compression in the compression chamber to a predetermined degree only. The air is by the described construction compressed in the compression chamber 19 and the chambers 58 and 54 wherein the pistons 24 reciprocate, the point of connection of the lowermost of the passages with the cylinder 2l being preferably such that it is not uncovered by the piston rings when in their most uppermost position. The connection of the uppermost passage 33 is such that communication with the top and bottom of the upper chamber 53.

Fig. l. Upon the crank shaft 8G, as indicated more clearly in Figs.` 1 and 3, is mounted a gear wheel 38, herein represented as a spiral or skew gear. Extending rearwardly from the sliding frame or to the `right viewing Fig. 2 are brackets 39 and 40 having bearings therein for a shaft 41, preferably provided with suitable spline ways. Splined upon the shaft 41 and positioned between the brackets 39 and 40 is a spiral or skew gear 42 meshing with and driving the gear 38, whereby a movement of reciprocation is imparted to the piston rod 27. i

In order to impart reciprocating movement to the piston rod 27, we may employ any suitable mechanism, having shown herein an electric motor 43 mounted independently of the bearing frame 8, it being, in this type of the invention, bolted or otherwise secured to the standard 4 in a preferably upright position `as indicated. By mounting the motor upon the standard 4, and independently of the frame the load upon the feed screw 10 is greatly lessened.

In the operation of this machine the cylinder and the framewould iirst be adjusted so as to bring the tool down and against the work, and the motor then being set in operation the first few strokes will cause the air to be forced from the lower part of the cylinder' and beneath the lower piston through the passage 30 into the compression chamber 19, and thence through the passages 33 into the upper portion ofthe lower cylinder chamber and the upper and lower portions of the upper cylinder chamber. WVhen the pressure has been sufficiently built up, which may be predeterminately limited by adjusting the relief valve 34, the whole mechanism may be raised by the feed screw to the desired position and with the full power of the motor turned on, a rapid reciprocating motion will be delivered to the tool through the compressed air connection described. As the cut deepens the tool is advanced by feeding the entire cylinder, frame and gearing toward the work, these parts moving independently of and relatively to the motor 43, which is supported uponthe standard.

Any other suitable means may be employed to introduce and Referring specifically to the type or embodiment of the invention represented in Figs. 4 and 5, the standard 4, the sliding frame 8, the cross head 16, the piston 27 and connecting rod 35 may be, as shown, of the type indicated in Figs. 1 and 2 or of any other desired type. In the drawings, we have shown a motor 47 mounted, as in the first described form of the invention, upon` the standard 4, the latter, however, being provided with suitable brackets 44 having bearings 45 therein to receive the trunnions 46 of the motor, whereby a rocking movement may be permitted the latter uponl the frame 4. The motor is disposed at a slight angle and has extending from the upper portion thereof an extensible shaft of any suitable character. Herein there is indi-v cated a lower sleeved member 48 having splined thereinfor longitudinal movement an upper member 49 having a beveled gear 50 upon itsupper end, more clearly indicated in Fig. 4. Uponrthe crank shaft 3Gris mounted a beveled gear 51 meshing `with. the beveled pinion 50.` Any other suitable gearing and drivingconnection may be employed between the piston 27 and the motor, which herein is mounted in any suitable manner upon the standard 4 for movement thereon.`

It will be noted that the described form of channeler embodies a pulsating power transmission system for effecting the impact ofV the tool by means of the motor. That is to say, with the tool connected to its driving member, such as the cylinder 21, the latter is first raised by the compression of the confined body of air beneath the dividing member 25, and the simultaneous expansion of the confined body of air above the dividing member, and then moved down by the compression of the confined body of air above the dividing member and the simultaneous expansion of the air below the dividing member. The movement of the cylinder, therefore, caused by the driving mechanism` causes these confined bodies of air above and` below the dividing member 25 to pulsate, but any other desired means may be adopted for this purpose.

In the particular type of our invention shown, it will be obvious that the initial building up of the pressure might beraccomplished in other specific ways than that illustrated, and either with or without the receiving chamber 19', although the presence of the latter renders the operation of the apparatus more even and uniform. The building `up of the pressure might be accomplished by means extraneous to the cylinder and the cross-head and independent thereof and by other than automatic means, but by means of the construction shown the entire mechanism` is reduced to a simple, effective and self-contained form.

The channeler illustrated is provided with any suitable device for causing its travel along the usual track-way provided such, for example, as a driving motor (not shown) connected to drive the axles 2 through gearing connections within the casing 52.

`While we have shown our invention as embodied in a traveling track channeling machine, it is to be understood that it may be usefully applied to other purposes and to other types and forms of tool actuating mechanism, the same being herein shown as embodied in a machine of this description for illustrative purposesonly.

Although an electrical motor is preferable for many purposes, in the form of machine illustrated our invention is not limited to that form of motor, but other forms of motive power may be employed.

Although we have described specifically and in detail the selected type or form of our invention, it is to be understood that our invention is not limited to the form or arrangement of parts set forth, or details of construction described, but that extensive modifications thereof may be made without departing from the spirit of our invention.

Claims: t e

l. Tool actuating mechanism comprising j a main frame, a standard rising therefrom,

a frame mounted upon said standard and vertically adjustable thereon, tool holding means mounted for reciprocation upon said f frame and having a iiuid receiving chamber, a working cylinder operatively connected to said tool holding means and in fiuid connection with said receiving chamber, `a piston mounted in said cylinder, a motor mounted independently of said frame and driving1 connections betweenfsaid piston and said motor.

2. Tool actuating` mechanism comprising a main frame, a standard rising therefrom, a frame mounted upon said standard, screw mechanism to vertically adjust the same thereon, tool holding means mounted for reciprocation upon said standard and having rigidly formed therewith a receiving chamber and a cylinder in fluid connection therewith, a piston in said cylinder, a motor mounted upon said standard, and mechanical driving connections between said piston and said motor and including gearing and extensible shafting.

3. rlool actuating mechanism comprising a main support, a standard rising therefrom, a frame mounted upon said standard and vertically adjustable thereon, tool holding means mounted for reciprocation upon said frame and having rigidly connected therewith a receiving chamber and a kcylinder having a plurality of compressor or working chambers therein, a piston in each of said chambers, a motor mounted upon said standard and mechanical driving connections between said pistons and said motor.

1. A channeling machine comprising a carriage provided with trucks, a trunnion shaft extending longitudinallyv at the side of said carriage, a support or standard mounted on said shaft and adapted for adjustment laterally to an inclinedl position thereon and also `for adjustment lengthwise the same, guideways on the standard, a frame mounted for vertical adjustment in said guideways, a feed screw and connections for adjusting the same,vguideways on the frame, a tool carrying cross'head adapted to slide on the guideways, a cylinder `rigidly connected. tothe cross head, a piston working in said cylinder, a piston rod, crank and connecting rod for'reciprocating said piston supported on said frame, a motor mounted on the standard independently of the frame and having a sliding connection to drive the crank andthe piston, and means for building up and maintaining pressure in said cylinder, whereby the reciprocation of the piston will cause the reciprocation of the tool.

5. A channeling machine comprising a carriage provided with trucks, a support or standard mounted at the side thereof, a frame mounted for vertical adjustment on the standard, meansforadjustably feeding the frame upon the standard, cross head guides upon the frame,a tool carrying cross head guided thereby, a driving motor supported independently of the frame, a reciprocatory part upon the frame, mechanical driving connections between said part and said motor, a cooperating cylinder and piston, the one connected to said reciprocatory part and the other to said cross head, and means for maintaining a predetermined fluid pressure in said cylinder.

6. A channeling machine having a wheeled truck adapted to travel along a suitable trackway laid upon the quarry bottom, a standard rising from the side of the truck and having near its lower end a pivotal connection with the truck near the edge thereof so as to present the cutting tools at different inclinations at the side of the truck, said standard being also adjustable lengthwise the truck to present the cutting tools at either end thereof, a frame vertically adjustable on said standard, means-for feeding the frame up or down thereon, tool-holding means mounted for reciprocation upon the frame for holding the cutting tools, coperating piston and cylinder members on said frame connected one to said tool holding means, a motor mounted independently of said longitudinally movable frame, and mechanical connections between the motor and the remaining member on the frame.

7. A channeling machine having a wheeled truck adapted to travel along a suitable trackway laid upon` the quarry bottom, a standard rising from the side of the truck and having near its lower end a pivotal connection with the truck near the edge thereof so as to present the cutting tools at different inclinations at the side of the truck,

and mechanical connections between the motor on the standard and the remaining member on the frame.

8. A `channeling machine having a wheeled truck adapted to travel along `a suitable trackway laid upon the quarry bottom, a standard rising from the side of the truck and having near its lower end a pivotal connection with the truck near the edge thereof so as to present the cutting tools at different inclinations at the side of the truck, said standard being also adjustable lengthwise the truck to present the cutting tools at either end thereof, a frame vertically adjustable on said standard, means for feeding the frame up or down thereon, toolholding means mounted for reciprocation upon the frame for holding the cutting tools, gearing carried by `said frame, cooperating piston and cylinder members on said frame connected one to said gearing and the other to said tool holding means for reciprocating the latter, a motor mounted upon a standard and adjustable therewith upon the truck, and `extensible shafting, having associated therewith a gear in mesh with said gearing upon said frame.

9. A channeling machine having a wheeled truck adapted to travel along a suitable trackway laid upon the quarry bottom, a standard rising from the side of the truck and having near its lower end a connection with the truck near the edge thereof so as to present the cutting tools at `the side of the truck, said standard being also adjust` able lengthwise the truck to present the cutting tools at either end thereof, a frame vertically adjustable on said standard, means for feeding the frame up or down thereon, tool-holding means mounted for reciprocation upon the frame for holding the cutting tools, coperating piston and cylinder members on said frame connected one to said tool holding means, a motor mounted independently of said longitudinally movable frame, and mechanical connections between the motor and the remaining member on the frame.

l0. A channeling machine having a Wheeled truck adapted to travel along a suit able track-way laid upon the quarry boti tom, a standard rising from the side of the truck and having near its lower end a piv otal connection with the truck near the edge thereof so as to present the cutting tools at different inclinations at the side of the truck, said standard being also adjustable lengthwise the truck to present the cutting tools at either end thereof, a frame vertically adjustable on said standard, means for feeding the frame up or down thereon, tool holding means mounted for reciprocation on the frame for holding the cutting tools, a` working cylinder' and piston, the latter ex-` posed to confined working fluid, pulsating means for alternately raising and lowering the pressure of the confined working fluid on either side of said piston to cause the same to pulsate, a motor for driving pulsating means, said motor being mounted upon the standard and adjustable therewith upon the truck and mechanical connections between the motor on the standard and the pulsating means.

11. A channeling machine having a main frame, a standard,.a `frame vertically adjustable on said standard, means for feed` ing the frame up or down thereon, a tool driving member' exposed to confined `work ing fluid, pulsating means on the frame for alternately raising and lowering the pressure of the confined working fluid at either side of said tool driving member, a motor mounted independently of said longitudinally movable frame and mechanical connections between the motor and the pulsating means on the frame.

12. A tool actuating mechanism comprising a main support, a standard, a frame mounted on said standard and adjustable lengthwise thereon, tool holding means mounted for reciprocation upon said frame, cooperating piston and cylinder members on said frame connected one to the tool holding means, a motor mounted independently of said frame and mechanical connections between the motor and the remaining member on the frame.

In testimony whereof, we have signed our names to this specification, in the presence Copies of this patent may be obtained for :tive cents each, `by addressing `the Commissioner of .Patenta WashingtomD. CJ.

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