US3498007A

US3498007A - Stone polishing and processing apparatus

Info

Publication number: US3498007A
Application number: US653794A
Authority: US
Inventors: Anthony S Janicki Jr
Original assignee: ANTHONY S JANICKI JR
Current assignee: ANTHONY S JANICKI JR
Priority date: 1967-07-17
Filing date: 1967-07-17
Publication date: 1970-03-03
Anticipated expiration: 1987-03-03

Description

`March-3, 1970 A.s.JAN1 K|,JR l I 3,498,007

STONE POLISHING AND PROCESSING APPARATUS Filed July 17, 1967 2 sheets-sheet 1 -March3,197y0 A..s.JAN|cK|,J -I 3,498,007'

STIE POLISHING AND PROCESSING APPARATUS Filed July 17, 1957 l 2 Sheets-Sheet 2 I NVEN TOR. #WHO/WJ 4A/MAZ Je 3,498,007 STONE PLSHING AND PRCESSNG APPARATUS Anthony S. .lanicki, Jr., Toledo, Ohio (118 Rockledge Circle, Perrysburg, Ohio 43551) Filed July 17, 1967, Ser. No. 653,794 lut. Cl. B24b 7/00, 9/00 U.S. Cl. 51-109 8 Claims ABSTRACT F THE DISCLGSURE This disclosure embraces an apparatus for lapping or polishing stones and more especially to a compact portable apparatus for polishing stones used for jewelry and decorative purposes, the apparatus being motor operated through a variable speed drive to provide various speeds for the stone lapping or polishing instrumentality.

This invention relates to apparatus for polishing stones used for jewelry and decorative purposes and especially to a motor-driven compact apparatus of portable character. Various types of stone polishing machines or apparatus have been devised and used but such constructions have not been readily adaptable to accommodate various types and sizes of polishing wheels or stone processing instrumentalities and have lacked effective means for readily changing or varying the speed of the rotatable mounting for a polishing wheel.

The present invention embraces the provision of a stone polishing or processing apparatus of a character wherein the components of the apparatus are mounted upon a comparatively small frame or support in compact orientation, rendering the apparatus readily portable.

An object of the invention resides in the provision of a stone polishing apparatus wherein the apparatus is fashioned to facilitate changing stone processing instrumentalities to adapt the apparatus for use in polishing or lapping various sizes and types of stones.

The invention embraces a stone polishing apparatus embodying a simple, yet effective, variable speed drive for the rotatable arbor mounting a stone lapping or polishing instrumentality, the apparatus being provided with arbor locking means for retaining the arbor temporarily in a xed position to facilitate changing stone processing instrumentalities.

Another object of the invention resides in an arrangement for adjusting the support for the rotatable arbor and the frame of the variable speed mechanism to vary the tension of driving belts employed in a drive mechanism between a motor and the arbor.

Further objects and advantages are within the scope of this invention such as relate to the arrangement, operation and function of the related elements of the structure, to various details of construction and to combinations of parts, elements per se, and to economies of manufacture and numerous other features as will be apparent from a consideration of the specification and drawing of a form of the invention, which may be preferred, in which:

FIGURE 1 is a top plan view of the stone polishing apparatus of the invention;

FIGURE 2 is a side elevational view of the apparatus illustrated in FIGURE l;

FIGURE 3 is a view of the front end of the apparatus;

FIGURE 4 is a bottom plan view of the apparatus;

FIGURE 5 is a transverse sectional view taken substantially on the line 5--5 of FIGURE 4;

FIGURE 6 is a sectional View illustrating components of a variable speed drive;

FIGURE 7 is an elevational view of a transversely slidable component of the variable speed` drive;

United States Patent() 3,498,087 Patented Mar. 3, 1970 ICC FIGURE 8 is an end view of a portion of another component of the variable speed drive;

FIGURE 9 is a sectional view of a lapping plate for processing stones;

FIGURE 10 is a detail view illustrating a locking means for the rotatable arbor of the apparatus;

FIGURE 11 is a sectional view illustrating a mounting of a wheel for processing cobochons;

FIGURE 12 is an elevational view of a chuck supported on the arbor mounting a cone-shaped polishing member; and

FIGURE 13 illustrates schematically the electrical circuit for the apparatus.

Referring to the drawings in detail and initially to FIGURES l through 5, there is illustrated a form of the stone processing or polishing apparatus of the invention. The apparatus is inclusive of a generally rectangular housing 10 having a hollow interior, the housing having a planar platform portion 12 forming a base or support means for the components of the apparatus.

The frame is inclusive of

side walls

14 and 15 and front and rear end walls 16 and 17. The base frame may be fashioned of wood or of cast metal such as cast aluminum or the like. As an example of the size of the base frame 10, it is found that a frame about 26 inches in length, 16 inches in width and about 6 inches in height provides support for components of the apparatus and suicient interior space for accommodating the rotatable arbor or shaft and the variable speed drive mechanism.

The apparatus is inclusive of a metal receptacle 20 preferably of circular configuration as shown in FIGURE l, which may be of cast aluminum or other suitable material. In the embodiment illustrated the oor or bottom 22 of the receptacle 20 is fashioned at its central region with an upwardly extending boss portion 24 and a depending boss portion 26 preferably integrally formed with the bottom 22 of the receptacle. The boss portions are integral and are fashioned with a central bore 27 as shown in FIGURE 5. A rotatable arbor or shaft 28 extends through the bore 27 and is journally supported on suitable anti-friction bearings 30 and 32 supported respectively within the bosses 24 and 26, the arbor being disposed for rotation about a vertical axis.

The receptacle 20 is fashioned with outwardly extending lugs or brackets 34, the brackets being provided with openings to receive securing bolts 36. The securing bolts 36 extend through slots 38 in the base or platform portion 12 of the frame, the slots extending lengthwise of the frame to provide for adjustment of the receptacle 20 for a purpose hereinafter explained. The arbor 28 is fashioned with an enlarged shoulder 40 and a threaded tenon portion 42 at its upper end. The threaded portion 42 is equipped with a nut 44 for securing stone polishing or processing wheels or instrumentalities to the arbor 28.

As shown in FIGURES 1, 2 and 5, a stone polishing wheel or instrumentality 46 has an axial opening to accommodate the threaded tenon 42, Washers or discs 48 being disposed above and below the polishing wheel 46 as shown in FIGURE 5. The nut 44 may be drawn up to securely fasten the polishing wheel 46 to the rotatable arbor 28.

The invention is inclusive of an electrically-energizable motor 52 for rotating or driving the arbor 28 through an adjustable variable speed mechanism mounted within the housing 10 to provide for rotation of a stone polishing wheel or other instrumentality at a desired speed for most efficient operation. The electrically-energizable motor 52 is mounted upon the base member or platform 12 of the housing. The housing of the motor 52 is provided with a circular flange 54 which is secured to the frame base member 12 by bolts 56. The motor shaft 58 is rotatable about 3 a vertical axis and extends downwardly into the interior of the housing 10, as shown in FIGURE 2.

The variable speed drive is illustrated in FIGURES 2, 4 and 5, certain components of the drive being illustrated in FIGURES 6 through 8. The variable speed drive is inclusive of a base plate or frame 60 of rectangular shape having pairs of

bosses

62 and 64 in transversely spaced relation, as shown in FIGURES 2, 4 and 5. The plate 60 is provided with a single boss 66, shown in FIGURE 5, disposed between the

bosses

62 and 64 at one end of the plate 60. The pairs of

bosses

62 and 64 are bored to accommodate rods 68 which form ways for supporting a longitudinally adjustable carriage 70.

The base plate 60 is fashioned with lengthwise arranged slots 71, shown in FIGURE 4, accommodating bolts 72 which extend through openings in the side wall 14 of the housing for securing the support plate 60 to the housing, the slots 71 providing for lengthwise adjustment of the base plate 60 relative to the frame 10 for a purpose hereinafter explained. The carriage 70 has depending portions 74, shown in FIGURE 4, provided with bores of a diameter to receive the rods 68 whereby the carriage 70 is slidable on the rods. The boss 66 has a smooth bore to accommodate an Unthreaded region of the threaded shaft 76.

Axially aligned with the threaded shaft 76 is a shaft 78, an end of the shaft 78 being coupled to the unthreaded end of the shaft 76 by means of a coupling member or collar 79. The shaft 78 extends through a bushing 89 mounted in an opening in the front end wall 16 of the housing, a hand wheel 90 being secured to an end region of the shaft 78 extending through the bushing 89. A collar 91 on the shaft 78 adjacent the bushing 89 prevents lengthwise movement of the shaft 78.

The carriage 70 is provided with a depending lug 93 fashioned with a threaded opening receiving the threaded region of the shaft 76. Through the threaded engagement of the lug 93 on the carriage with the threaded shaft 76, rotation of the shaft 76 by rotating the hand wheel 90 effects adjustment of the carriage 70 lengthwise of the supporting plate 60. The carriage 70 is fashioned with two triangularly shaped portions or arms 95, the upper ends of the portions 95 fashioned with openings accommodating a shaft 97 which is secured against rotation by a setscrew 98.

With particular reference to FIGURE 6, a tubular shaft or sleeve 100 is journally supported upon the shaft 97 by means of needle bearings 102 or other suitable bearing means. Mounted in spaced relation on the sleeve 100 are disc-

like members

104 and 106, the members being secured to the sleeve 100 by setscrews 107. The

members

104 and 106 are of identical construction, an end View of a portion of member 106 being illustrated in FIGURE 8. Each of the

members

104 and 106 is fashioned with a frusto-conically shaped surface 109. Each frusto-conically shaped surface is fashioned with circumferentially-spaced recesses 110 which define lugs 112 of generally sectorlike shape.

Disposed between the

members

104 and 106 is a member 116 having its

exterior surfaces

117 and 118 of frustoconical shape Which are reciprocal in angularity to that of the surface 109 on

members

104 and 106. The member 116 is fashioned with circumferentially spaced openings or open areas 120 providing, between the open areas, sector shaped lugs 122 which are of a circumferential dimension or thickness to be slidably received in the recesses 110 fashioned on each of

members

104 and 106. The member 116 is provided with a hub portion 124 having a bore accommodating the sleeve 100 with sufficient clearance to facilitate slidable movement of member 116 in both directions lengthwise of the sleeve 100.

It will be apparent from FIGURE 6 that the

lugs

112 and 122 are in interlocking driving relation irrespective of the relative lengthwise position of member 116 between the

members

104 and 106. As shown in FIGURES 2 and 4, the motor shaft 58 is equipped with a pulley 126 and the arbor 28 equipped with a pulley 130. The pulley 126 is engaged With an endless V-belt 132 which engages a pulley-like construction provided by

members

104 and 116, the belt 132 engaging the frusto-conically shaped

surfaces

117 and 109 of member 104 as shown in FIG- URE 6.

A second endless V-belt 134 connects the pulley 130 with the pulley-like `construction provided `by

members

106 and 116, the belt engaging the frusto-conically shaped surface 118 and the surface 109 of member 106. From IFIGUR-ES 2 and 4 it will be apparent that the speed of rotation of the arbor 28 may be varied by slidably adjusting the carriage 70 through manipulation of the hand wheel whereby one V-belt is moved outwardly of the axis of the sleeve and the other V-belt moved inwardly of the axis thereby effecting a change in the speed of rotation of the arbor 28 and stone polishing instrumentality supported thereon.

The tension of the driving belt 132 may be adjusted by sliding the plate 60 lengthwise of the housing 10 as permitted by the slots 71 shown in FIGURE 4. The tension of the driving -belt 134 may be adjusted by manipulating the bolts 36 to adjust the relative position of the receptacle 20 and rotatable arbor 28 as permitted by the slots 38, shown in FIGURE 2.

Means is provided for supplying a controlled stream of water or other liquid onto the stone polishing wheel or instrumentality 46. The circular wall of the receptacle 20 is fashioned with an exterior boss 138 having a vertical bore to snugly receive a post or support member 140. A container or tank 142 is adapted to be supported upon the post 140. The side wall of the container 142 is equipped with a bracket 144 which is slidably mounted on the post 140, the bracket being equipped with a winged screw 146 for adjustably securing the tank 142 on the post. A second bracket 148 is slidably adjustable along the post and may be secured in adjusted position by a winged screw 150.

The bracket 148 supports a short length of metal tubing 152 such as copper tubing. Secured to the bottom or oor of the tank 142 is a nipple fitting 154 connected by a flexible rubber tube 156 with an end of the metal tube 152. Secured to the other end of the metal tube 152 is a conventional adjustable flow control valve 158. The housing of the valve 158 is equipped with a short length of metal tubing 160 such as copper tubing, the end 161 of the tube 160 terminating in a position to deliver a stream of water onto the stone polishing wheel or instrumentally 46. The Valve 158 is adjustable to control the flow of water from the tank 142 onto the stone polishing wheel.

The bracket 148 may be adjusted by manipulation of the winged screw to change the position of the tube to change the region of delivery of the stream of water onto the stone polishing wheel. The arbor 28 is adapted to accommodate and support various types and sizes of stone polishing instrumentalities. A locking means is provided for locking the arbor 28 in a fixed position to facilitate changing stone polishing wheels or instrumentalities.

With reference to FIGURE 10, the boss 26, supporting the bearings mounting the arbor 28, is fashioned with a depending boss 164 provided with a bore 165 slidably accommodating a locking rod 166. The arbor 28 is provided with a recess 168 adapted to receive the end of the locking rod 166. The rod 166 extends through an opening in the front wall 16 of the housing and is equipped with a manipulating knob 167 to manipulate the rod in a lengthwise direction. Mounted on the rod 166 is a washer 169 abutting against a pin 170 extending through an opening in the rod 166. Disposed between the boss 164 and the washer 169 is an expansive coil spring 172.

As shown in FIGURE 10, the lcoil spring normally maintains the end of the rod 166 out of engagement with the arbor 28. When it is desired to remove one stone polishing instrumentality and replace it with a different instrumentality, the operator rotates the arbor 28 by hand to align the recess 168 with the rod 166, and the rod depressed to engage the end thereof in the recess 168 to lock the arbor against rotation. The locking nut 44 on the arbor may then be removed to effect a replacement of a stone polishing instrumentality. When the operator releases pressure on the rod 166, the expansive spring 172 withdraws the rod from the recess 168.

As shown in FIGURES 1, 2 and 4, a suitable handle 174 is provided on the front wall 16 of the housing to facilitate carrying the apparatus, the apparatus being compact and hence readily portable. The floor 22 of the receptacle 20 is equipped with a depending nipple 176 to which a flexible rubber drain tube 178 may be attached to convey away the water and grindings from the receptacle 20 to a waste receptacle (not shown), the tube extending through an opening 179 in a wall 14 of the housing 10, as shown in FIGURE 5.

An electrically-energizable lamp construction 180 may be provided mounted upon adjustable support linkage 181-182 of conventional construction, the support linkaf'e being secured to a bracket 184 mounted on the planar platform or member 12 of the housing, as shown in FIGURES 1 and 2. An electrical outlet receptacle 188 is mounted upon the upper surface of the housing platform 12 and current supply conductors L1 and L2 connected therewith, the current conductors -being enclosed in an insulating cord or sheath 189 of conventional construction. The conductors L1 and L2 are connected with a conventional current supply outlet receptacle (not shown).

The circuit is illustrated in FIGURE 13. The receptacle 188 is connected by a conductor 191 with the motor 52. Current conductor 192 is connected with a manually operated switch 193 mounted on the front wall 16 of the housing, the switch being connected by conductor 194 with the motor 52. Thus, when current is supplied from a conventional outlet to the receptacle 188 and the switch 193 moved to closed position, the motor 52 is energized which, through the variable speed mechanism hereinbefore described, effects a drive to the polishing wheel supporting arbor 28. The current for the lamp 180 is obtained by connecting the lamp cord (not shown) with one of the current outlets 196 of the receptacle 188.

FIGURE 9 illustrates the method of mounting a stone lapping plate 200 on the arbor 28. The lapping plate 200 is fashioned with a boss 202 having a threaded bore to receive the threaded tenon 42 on the arbor 28, the lapping plate being locked by means of a locking nut 204.

FIGURE ll illustrates a method of mounting a worn grinding or polishing wheel 210 on the arbor 28. Washers 212 are disposed adjacent the planar surfaces of the wheel 210 and the wheel locked in position on the arbor by means of the nut 44'. The wheel of the character shown in FIGURE 11 is for shaping cabochons.

FIGURE 12 illustrates a method of mounting a coneshaped grinding or polishing wheel 220 for rotation on the arbor 28. In this arrangement, an adjustable chuck 222, such as a conventional Jacobs chuck, is mounted on the threaded portion 42 of the arbor 28 and locked in position by a lock nut 224. The cone-shaped polishing instrumentality 220 is provided with a conventional shank 226 which is received in the adjustable chuck 222.

From the foregoing it will be apparent that the polishing apparatus is of compact, lightweight construction wherein the rotatable arbor is adapted to mount various types of stone polishing instrumentalities and wherein the variable speed drive enables the selection of the most efficient operating speed for a stone lapping, grinding or polishing instrumentality.

It is apparent that, within the scope of the invention, modifications and different arrangements may be made other than as herein disclosed, and the present disclosure is illustrative merely, the invention comprehending all variations thereof.

I claim:

1. Apparatus for processing stones including, in cornbination, support means comprising a housing having a platform portion, a receptacle mounted on the platform portion and having a hollow boss portion, a rotatable arbor extending through the hollow boss portion, bearing means supported by the boss portion journally mounting said arbor, a pulley on the arbor, said arbor arranged to mount a stone engaging instrumentality, an electrically energizable motor mounted by the housing having a shaft mounting a pulley, bracket means supported by the housing, variable speed transmission mechanism mounted by the bracket means, said variable speed transmission mechanism including a carriage, means mounted by said bracket means supporting said carriage for adjustment of the carriage in a rectilinear direction, said variable speed mechanism including a shaft rotatably supported upon the carriage, first and second disc-like members mounted in spaced relation on said shaft, a third disc-like member disposed between said first and second disc-like members and movable lengthwise of the shaft, said members having frusto-conically shaped surfaces cooperating to form two pulley-like configurations, a first power transmission belt connecting one of said pulley-like configurations with the motor pulley and a second power transmission belt connecting the other of said pulley-like configurations with the pulley on the rotatable arbor, means for manually adjusting the carriage in a rectilinear direction whereby said third disc-like member is moved axially of the supporting shaft =by said belts for varying the speed of rotation of the arbor, a tank adapted to contain a liquid, a support for the tank, tubular means connected with the tank for conveying liquid onto the stone engaging instrumentality, means securing the receptacle to the platform, said receptacle being adjustable relative to the housing for adjusting the tension of the second power transmission belt engaged with the pulley on the arbor, and drain means connected with the receptacle.

2. The combination according to claim 1 wherein the bracket means is adjustable relative to the housing for controlling the tension of the first power transmission belt connected with the pulley on the motor shaft, and means securing the bracket means in adjusted position.

3. The combination according to claim 1 wherein the receptacle is of aluminum.

4. The combination according to claim 1 wherein the receptacle is provided with a boss having a bore therein, the support for the tank including a post member disposed in the bore, and bracket means on said tank engaging the post member.

5. The combination according to claim 1 wherein the arbor is provided with a recess, a transverse bore in the boss portion of the receptacle, a rod slidably disposed in said transverse bore engageable in the recess for locking the arbor against rotation, and resilient means normally biasing the rod out of engagement with the arbor.

6. The combination according to claim 1 wherein the disc-like members have axially projecting lugs, the lugs on the third disc-like member interengaging lugs on the first and second disc-like members whereby the third disclike member is positively rotated with the first and second disc-like members.

7. The combination according to claim 2 comprising rods mounted on said bracket means, said carriage being slidably mounted on said rods, said carriage having a threaded bore, a rotatable element having a threaded portion in engagement with the threaded bore in the carriage for adjusting the position of the carriage, an extension for said element extending exteriorly of the housing, and a hand wheel on the extension exteriorly of the housing for rotating the element.

8. Apparatus for processing stones including, in cornbination, support means comprising a housing having a platform portion, a receptacle mounted on the platform portion and having a hollow boss portion, a rotatable arbor extending through the hollow boss portion, bearing means supported by the boss portion journally mounting said arbor, a pulley on the arbor, said arbor arranged to mount a stone engaging instrumentality, an electrically energizable motor mounted by the housing having a shaft mounting a pulley, bracket means supported by the housing, variable speed transmission mechanism mounted by the bracket means, said variable speed transmission mechanism including a carriage, means mounted by said bracket means supporting said carriage for adjustment of the carriage in a rectilinear direction, said variable speed mechanism including a shaft rotatable supported upon the carriage, first and second disc-like members mounted in spaced relation on said shaft, a third disc-like member disposed between said first and second disc-like members and movable lengthwise of the shaft, said members having frusto-conically shaped surfaces cooperating to `form two pulley-like configurations, a first power transmission belt connecting one of said pulley-like configurations with the motor pulley and a second power transmission belt connecting the other of said pulley-like configurations with the pulley on the rotatable arbor, means for manually adjusting the carriage in a rectilinear direction whereby said third disc-like member is moved aXially of the supporting shaft by said belts for varying the speed of rotation of the arbor, a tank adapted to contain a liquid, a

support for the tank, tubular means connected with the tank for conveying liquid onto the stone engaging instrumentality, means securing the receptacle to the platform, said receptacle being adjustable relative to the housing for adjusting the tension of the second power transmission belt engaged with the pulley on the arbor, drain means connected with the receptacle, an electrically energizable lamp, adjustable means mounted on the housing supporting the lamp, an electric current supply outlet unit mounted on said housing, circuit means lfor said motor connected with the current supply outlet unit, and switch means in said motor circuit mounted on said housing for controlling the operation of the motor.

References Cited UNITED STATES PATENTS 237,922 2/1881 Stetson 51-267 X 1,711,015 4/1929 Dailey 5l109 2,429,617 10/ 1947 Gustafson 269-70 3,073,071 1/1963 Dierks 5l-134.5 X 3,210,893 10/1965 Jackson 51-170 HAROLD D. WHITEHEAD, Primary Examiner U.S. Cl. X.R. 51-124, 170