US1462522A - Glass finishing and polishing machine - Google Patents

Description

July 241, 1923.

G. c. SCOTT GLASS FINISHING AND (POLISHING MACHINE Filed June 20. i921 4 Sheets-Sheet 1 INVENTOR ROMEH w QQ' A TTOR/i/EYS July 1923. V I 11,462,522

/ 5. Q'SCOTT GLASS FINISHING AND POLISHING MACHINE Fi led June 20. 1921 4 Sheets-Sheet 2 k3 H1! lilllllilil T Ll l/VVE/VTUR GFGVERCSCO IW;

A TTOR/VEVS WITNESSES July 24%, I923.

G. C. SCOTT GLASS FINISHING AND POLISHING MACHINE Filed June 20, 1921 4 Sheets-Sheet 5 lNV Q/VTOR G 7 L. 50075 ATTORIQE Y8 Jufiy 24, 1923 G. C. SCOTT GLASS FINISHING AND POLISHING MACHINE Filed June 20. 1-921 4 Sheets-Sheet 4 WITNESS/5 A TTORIVEVS invented certain new form approaching the molten. state Patented July 243, 1923i,

GROVER CLEVELAND SCOTT,

or WATSON, wns'r vmemra.

GLASS FINISHING AND POLISHING IEACHINE.

Application filed June 20, 1921. Serial No. 478,854.

. To all whom it may concern Be it known that. I, GROVER CLEVELAND Soorr, acitizen of the United States, and a resident of Watson, in the county of Marion and State of VVest Virginia, have and useful Improvements in Glass Finishing and Polishing Machines, of which the following is a specification.

cal power and of ready adjustment to ac commodate heights.

Jith these glasses and tumblers of various general objects in mind my invention resides in a machine constructed and operatingas now described with respect to the accompanying drawings, which a part of this specification andwhere- Figure" l is a side elevation of the completemachine,

lr igure 2 isa top plan view thereof, F igure 3 is a top plan View with the top .plate removed,

-Figure-.4' is a .horizontal section,

F igure-5 isa detail perspective'view of the elevating mechanism,

Figure 6 is a detail perspective view of the cam controlling the elevating mechanism,

Figure 7 is a detail perspective view of the polishing member, Figure 8 is a detail perspective view of one of the glass holders,

Figure 9 is a detail shifting wheel, and

Figures 10 and 11 are partial perspective views showing a drinkin' glass or tumbler res ectively before and a ter finishing.

t is a well known fact that pressed glasses are when initially formed slightly rough on the edges and parency, the first defect of which may be corrected byrotation of the glass inthe presence of a flame playing. on its edge until the latter is heated to a point closely so that the material slightly runs and the roughness is My present invention relates generally to chain travels perspective view of the of uncertaintrans-- eradicated. The second defect may be overcome by pollshing the external surface of the glass.

My improved machine provides for the automatic accomplishment of both the smoothing of the edge of the glass and the external polishing thereof, and is utilized in connection with-a heater such for instance as-seen at 15 in Figures 1 and 2,'having lower openings 16 upwardly into which the upper edges be projected into the influence of the flame from burners 17 or similar sources of heat. In accordance with my improvements glasses are inserted first in one and then in the other of the openings-16 and successively subjected to the flame of the burners 17 while in' rapid rotation, the operation being so timed that upon withdrawal of each glass from the second opening its edge will havebeen accomplished.

In my improved machine a series of cup shaped upwardly opening glass holders 18 are mounted upon the upper ends of stems 19, the latter of which are ournaled for rotation' and vertical shifting movement in frames 20 secured to the outstanding portions 21 of spaced links of a chain 22. This horizontally upon the upper surface of a table 23 and moves at opposite endsof the tablearound sprocket wheels 24 and 25 respectively secured upon the upper ends of upright shaft-s 26 and 27.

The shafts 26 and 27 rise from the lower plates 28 of a ends of whose upright portions are secured by means of angle plates 30 to the central portion of the table 23 so as to support the latter. The-lower end of shaft 27 is adjustably mounted in the plate 28 and its upper end is similarly adjustable in the slotted supporting bar 32 within the opposite end of which the upper end of shaft 26 is journaled, this supportin bar 32 overlying the table 23 along the ongitudinal axis of the latter and also overlying a'cover plate 33 of the table, below the ed e of which the outstanding links of the chain 22 project. This adjustment of shaft 27 pro-' vides for tightening or loosening of the chain 22 as may be desired.

Each of the stems 19 of the glass holders 18, one of which is shown in detail in Figure. 8, has a spur gear 84 splined thereon, said spur gear being confined within the lower portion of the respective frame 20 for portionv 31 of a of glasses or tumblers may pair of brackets 29 the .upper' the smoothing of engagement with the. peripheral teeth of a large gear 35 journaled onthe shaft 27 below the table 23, into connection with which each of the glass holders moves as it approaches one end of the table 23 in the clockwise rotation of the chain 22, beneaththe elevated heater 15.

Gear 35 also has a downwardly presented toothed surface 36 and is provided atone pointwith a depending cam 37, teeth 36 being engaged by a pinion 38 in turn engaged by a gear 39 upon one end of a lower hori-: zontal shaft 40. The opposite end of this shaft has a gear 41 engaging one side of the lower toothed edge .of a horizontal gear Wheel 42 the opposite side of the lower edge of which is connected by gears 43* and l t of counter shafts 13 andete to the gear 4:5 of the shaft e6 of a motor 46. Thus during rotation of the motor 46 the gear 35 rotating the glass holders at one end of the" machine is constantly rotated.

- Shaft 26 at the opposite end of the table has a wheel 47 secured-thereon and provided with a series of circ'umferentially spaced upstanding pins 48 each of the latter of which is adapted for engagement by the upstandingangular arm 49 secured on the horizontal gear wheel 42 previously described so that the wheel 47 will be partially rotated during each complete revolution of the ear wheel 42 and in this waybring about intermittent rotation of the chain 22. Each shiftin movement of thechain 22 in a clockwise direction shifts a pair of the glass holders 18 to one end of the table upon relatively opposite sides of the longitudinal axis thereof and beneath the heater 'o-pen- 'ings 16 at the same time brings these holdersabove an arcuate elevating plate 50 which isivertically :shiftable below and adjacent to one end of the table 23 upon the I upper end of a vertically-shiftable stem 51.

This elevating plate is of sufficient length to simultaneously engage the lower ends of the stems 19 of two of the cup holders in the operating positions previously described be neath the heater openings so that immediately following cessation of shifting movement of the chain 22, the plate 50 by its upward movement will engage and shift the glass holder stems 19 vertically to project the upper portions of the' glasses 52 upwardly into the heater 15 through its openings 16.

The elevating plate 50 may have, at one end, an adjustable stem engaging screw member 50? as "seen in Figure5 so thateach glass may if desired be lifted higher in the second opening of the furnace than in the first opening. "By virtue of the splined connection of their gears 34: however andthe fact that these gears are confined in the lower portion of the holder frames 20,-said'gears will remain in engagement with the gear 35 while; at the operating statiomboth in the upper and lower positions of the holders so that the latter particularly when inserted upwardly into the heater 15, will be constantly rotated.

It is obvious from the foregoing that in operation each glass holder will be shifted vertically at successive stages into the two heater openings during intermittent rotation of the 'chain 22 and it is further to be observed that as each glass holder-is shifted toward and from beneath the heater its gear 3 f will engage one of thexidle gears 53 at opposite sides of'the table in mesh with the horizontal gear ,35 so that between shifting movementsof the chain each glass holder while within the influence of the heater will hefrotated to avoid unun'iform heating; At vthe second rotating or polishing station the external surface of each glass will be rotatedrin contact with'one concave face 54 of a polishing head 55, preferably formed of a suitable wood and mounted upon the upper end of a stem 56. This stem is journaled on the cover plate 33 and has diametrically outstanding-arms 57 and 58 the latter of which is engaged by a-spring 59 ready reception of the mixed holder carried glass against its concave face. The. stem 56 yields by rotation as the respective glass 52 continues its movement to the polishing station and, in the next intermittent shifting movement of the chain, passes from said polishing station and out .of contact with the polishing head. v 7 i The elevating plate 50 has'a lower inverted U-shaped piece 60 to which is pivotally connected the forward end of a lever 61 fulcrumed as at 62 upon the upper end of an upright 63 and engaged at its rear end by a springtie whose function is to shift the plate 50'upwardly, cam 37 engaging lever 61 toshift the plate 50 downwardly a ainst the tension of spring 64;, the latter of which operates under control of an adjustable screw stop 65 with which the spring engaged end of lever til-contacts so as to limit'upward movement of the elevating plate. i t

Thus each intermittent shifting movement of the chain 22 takes place while the cam 37 is in' engagementwith lever 61andthe elevating plate 50i's in lowermost position, i

of themachine -are rnounted' upon avertically dj ustable.platform6 6and this plat form is 111 turn adjustablefwithrespect to a base 67 by virtue of adjustable connect- -nection with the construction and operation large as well as ing screws 68 therebetween, so thatthe entire working parts may be raised and lowered depending upon the particular ware in connection with which it is to be used, it being understood that the glass or tumbler supporting cups 18 with their stems 19 may be removed and others inserted conforming to the size and shape of the articles to be finished.

The machine is thus adapted to glasses and tumblers of various sizes from small to those with and without stems, the finished articles being removed and unfinished ones substituted after they have passed the polishing or burnishing station' opposite the gear 53.

It is to be particularly noted that the an ticles are rotated not only when they are elevated within the heater 15 but also while engaged with the burnishing or polishing head 54, at other times remaining stationary except for their intermittent shifting movement with and around the chain 22.

I claim:

1. A machine of the character described including an intermittently moving carrier in the formof a link chain, certain of the links of which have outstanding extensions, upright shafts at opposite ends of' the carrier, a sprocket wheel on the upper end of each shaft, one of which is loose and the other of which is rigid with its respective shaft, means having connection with the last .mentioned shaft for intermittently moving the carrier chain, a

gear revolubly mounted on the other shaft,

means. for constantly rotating the said gear, a frame secured to each of the said link extensions, a glass holder for each of the said journaled vertically slide vertically,and rotate, a gear splined on each stem' and confined against sliding movement therewith in the frame, said gears of said holders being engageable with the first mentioned gear at one end of the carrier, and means at the said end of the carrier for shifting the stems of the holders vertically while in rotation.

2. A machine of-the character described including a table, a carrier movable around and upon the table, upright shafts, one of which is rotatable, bers on the shafts, a gear wheel loose on the other shaft, means ing the first shaft and thus moving the carrier, means for constantly rotating said gear, a vertically shiftable the gear, a cam rotating with the gear for actuating said shiftable of glass holders each having. a stem movable with the carrier member, and a gear splined on the stem and engageable with the first named gear, and a frame on the carrier for each holder, in which the holder stem is journaled to rotate frames including a stem through the frame to carrier actuating memfor intermittently rotat member adjacent to member, a plurality,

above said shifting and shift vertically, and in which the gear of said stem is freely rotatable and confined against vertical shifting movement with the stem.

3. A machine of the character described including a table, a carrier movable around and upon theitable, upright shafts, one of which is rotatable, carrier actuating mem bers on the shafts, a gear wheel loose on the other shaft, means for intermittently rotating the first shaft and thus moving the carrier,vmeans for constantly rotating said gear, a vertically shiftable member adjacent to the gear, a cam rotating with the gear for actuatin said shiftable member, a plurality of glass liolders each having a stem movable with the carrier above said shifting memher, and a gear splined on the stem and engageab'le with the first named gear, and a frameon the carrier for each holder, in

which the holder stem is journaled to rotate holders being independently rotatable and vertically shiftable, a constantly rotating gear adjacent to one end of the carrier and into and out of engagement with which the holders are successively shiftable during their movement with the carrier and means engageablewith the holders While the latter are in engagement with the rotating gear, for shifting the holders vertically with respect to the carrier. 7 i

5. A machine of'the character described including an intermittently movable carrier ofendless form, a plurality of glass holders supported at spacedv points therearound and movable therewith, each of said holders being independently rotatable and vertically f shiftable, a constantly rotating gear adjacent to one end of-=the carrier and with which the holders are successively engageable during their movement with the carrier, and means en ageable with the holders While the latterire in engagement with the rotating gear, for shifting the holders vertically with respect to the carrier, said means including an arcuate elevating plate, a lever one end of which is pivotally connected to the said plate, a controlling spring en aging the opposite end of the lever, to ho d its upper position,

said gear and engage the elevating plate" in connected to the said plate, a controllingable with the lever to depress the elevating plate.

6. A machine of the character described including an intermittently movable car- 'rier of endless form, a pluralit of glass holders supported at spaced points therearound and movable therewith, each of said holders being independently rotatable and.

vertically shiftable, a constantly rotating gear adjacent to one end of the carrier and with which the holders are successively engageable during their movement with the carrier, and means engageable with the holders While the latter are in engagement with the rotating gear, for shifting the holdersvertically with respect to the carrier, said means includin an arcuate elevating plate, a lever one en of which is pivotally spring enga ingthe opposite end of the lever, to hold the elevating plate in its upper position, a cam rotating in connection with the said gear and engageable with the lever to depress the elevating plate, and means engaging the spring controlled end of the lever to regulate-the extent of upward movement of the elevating plate under the tension of the spring.

7. A'machine of the character described including an intermittently movable carrier'of endless form, a plurality of glass holders supported at spaced points there around and movable therewith, each of said carrier,

'ers verticall.

holders being independently rotatable and,

vertically shiftable, a constantly rotating gear adjacent to one end of the carrier and with which the holders are successively engageable during their movement with the holders while the latter are in engagement with the rotating ear, for shifting the holdwit said means lncluding an arcuate elevating plate, a lever one end of which is pivotally connected to the said plate, a controlling spring lever, to hold the elevating plate in its upper position, a cam rotating in connection with the said gear and engageable with the and means engageable with therespect to the carrier,

engaging the opposite end of the.

lever to depress the elevating plate, a bracket, and an adjusting screw threaded in the bracket and forming an adjustable stop for the spring controlled end of the lever for the purpose described. V

8. A machine of the character described comprising a table, an endless flexible carrier on the table including a-plurality of holders supported by and movable with the carrier, a table on which the carrier operates, means for moving the carrier, means with which the holders are shiftable into and out of engagement for rotating the holders, and a polishing head mounted to oscillate on the table and disposed in the path of movement of the holders to engage 1 the latter while they are in rotation.

10. A machine of the character described including an intermittently moving carrier, a plurality of independently rotatable glass holders supported by and movable with the carrier, a table on which the car-- rier operates, means with which the holders are shiftable into and out of engagement for rotating the holders, and a polishing head mounted to oscilate on the table and disposed in the path of movement of the holders to engage the latter while they are in rotation,

said polishing head having a concaveglass I engaging surface and having outstanding arms, and a spring controlling oscillation of the head engaging one of said arms.

GROVER CLEVELAND SCOTT.

means for moving the carrier,

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