US613319A

US613319A - Glass-finishing machine

Info

Publication number: US613319A
Authority: US
Publication date: 1898-11-01
Anticipated expiration: 1915-11-01

Description

No. 6|3,3|9. Patented Nov. l, |898. A. J. SANFORD & W. A. INGLER. GLASS FINISH'ING MACHINE.

(Application led Jan. 27, 189B.) (No Model.) 2 Sheets-Sheet I.

Z5 DI me Norms versus co, Hom-uma., wAsumsoN. D. c.

No. 6|3,3|9. Patented Nov. I, |898. A. J. SANFORD & W. A. INGLER.

GLASS FINISHING' MACHINE.

(Application filed Jan. 27, 16298.) (N0 Modem 2 `sheets-sheet 2.

UNITED STATES- ljATnNT OFFICE.

ANDREW JOHN SANFORD, OF NEWARK, AND WILLIAM A. INGLER, OF ZANESVILLE, OHIO.

GLASS-FINISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 613,319, dated November 1, 1898.

Application filed January 27, 1898. Serial No. 66 8,220. (No model.)

To all whom, it may concern:

Be it known that we, ANDREW JOHN SAN- FORD, residing at Newark, in the county of Licking, and WILLIAM A. INGLER, residing at Zanesville, in the county of Muskingum, State of Ohio, citizens of the United States, have invented a new and useful Glass-Finishing Machine, of which the following isa speciication.

Our invention is an improvement in machines for nishing glass articles by the abrasive action of a buffer on the surface of the article; and the object that we have in View is to provide a simple mechanism by which dierently-shaped articles may be iinished rapidly and economically.

A further object that we have in view is to provide an improved mechanism by which the buffer or the buer-roll may be brought by a gentle motion into contact with the work, thus obviating marring of the surface of the work, and at the same time We obtain a positive motion to the driving mechanism.

With these ends in View our invention consists in the .novel combination of elements and in the construction and arrangement of parts, which will hereinafter be fully described and claimed.

To enable others to understand our invention, we have illustrated the preferred embodiment thereof in the accompanying draw! ings, forming a part of this specification, and in which- Figure 1 is a plan view of a glass-finishing machine constructed in accordance with our invention. Fig. 2 is a vertical longitudinal sectional View thereof. Fig. 3 is a detail view of one form of buffer which We may use in our machine. Fig. 4 is a vertical sectional view on the plane indicated by the dotted line a a of Fig. l. Fig. 5 is a detail plan view of the jaws and buifer-rolls, the latter being used interchangeably with the bufferplates. Fig. 6 is a detail sectional View of part of the machine represented by Fig. 5.

Like numerals of reference denote like and corresponding parts in each of the several figures of the drawings.

In carrying our invention into practice we provide a bed-plate l, having suitable means for supporting the same rigidly in place, and said bed-plate is constructed to support or carry all of the operating parts of the ma'- chine. At a suitable point intermediate of its length this bed-plate is provided with a shaft-bearing 2, the purpose of which will hereinafter appear. On this bed-plate, at a suitable distance from the horizontal shaftbearing 2, is fixed a spindle 3, the lower end of which is threaded and passed through a suitable opening in the bed-plate to receive a nut 3, designed to clamp the spindle rigidly to said bed-plate. Around this fixed spindle is arranged a revoluble carrier 4, which is entirely independent of said iixed spindle and is adapted to be driven at suitable speed for the purpose of carrying the buffer or the roll around the work. This revoluble carrier is concentric with the fixed spindle, and it is provided with a tubular shaft 5, the lower end of which is supported by a bearing-plate 6. This bearing-plate or disk is parallel to the stationary bed-plate l of the machine, and it is supported at a suitable distance from said bed-plate by the fixed posts 7. These-posts have their opposite ends fastened in the bed-plate'and the bearingplate or disk 6, and they sustain the latter at a suitable elevation to maintain the revoluble carrier 4 in proper relation to the work, which is fitted to the stationary form on the fixed spindle 3. The revoluble carrier 4 has its inner face 4f inclined or iiared substantially as shown by Fig. 2 of the drawings, and the rim or edge of said carrier is constructed to receive the series of hinged jaws S. Ve preferablyemployaseries of three of these hinged jaws, which are attached to the carrier in suitable relation to each other; but of course the number of jaws employed may be varied according to the size of the machine and the article to be treated. The hinged jaws are mounted on the revoluble carrier to rotate therewith; but said jaws are also capable of a limited movement independently of the rotary movement of the carrier for the purpose of adjusting the buer or roll to and from the surface of the work which it is desired to treat or nishin our machine. or shaped substantially as shown by Fig. 2

Each jaw is formed roo of the drawings, and said jaw is hinged or pivoted to the rim of the carrier by a transverse pivot pin or bolt 9, which is suitably attached to said carrier. The jaws 8 are provided with the inclined heels 10, adapted to bear or tit firmly against the flared face 4a of said carrier, and to this end we construct the heels 10 to conform to the inclination of the carrier, so that the desired firm bearing of the jaws on the carrier may be attained. The jaws are further provided with the inclined lugs 11, which extend inwardly toward the fixed spindle of the machine, and these lugs lie at a suitable distance above the inclined heels of the jaws to permit the adjusting head or disk, presently described, to have the necessary play between the heels and lugs to free the heels of the jaws from contact with the flared face 4fL of the carrier.

The upper extremity of the fixed spindle 3 carries a suitable form 12, which is attached to said spindle rto remain stationary thereon, and said form is of suitable dimensions and shape to fit into the article to be treated. XVe do not limit ourselves to any particular shape or size of this form l2 nor to the means for attaching the same to the fixed spindle, because the form will be changed in accordance with the article which it is desired to treat in the machine.

The buer-plates of our glass-finishing machine are indicated at 13, and they are constructed to be applied to the jaws 8 in order that they may partake of the rotary motion of the carrier and of the oscillating limited movement or play of the pivoted jaw. The shape of the buffers is not material, because we contemplate using a'number of buffers to conform to the external contour of the article which it is desired to treat and finish in the machine. lVe employ a series of metallic buffers-that is to say, each buffer is made of a suitable metal-such, for instance, as iron, copper, or any other metal suitable for the purpose; but in our experiments we have found that copper is very appropriate to the work of finishing the surface of a glass article. As shown in the drawings, we prefer to attach each buffer to one of the hinged jaws by forming an angular foot 14 at one end of the body of the buffer, and in this foot is formed a transverse slot 15, through which passes a bolt 16 to attach the buffer-foot firmly to one of the jaws. The exposed face of the jaw to which the buffer is to be applied is shaped according to the form of the foot of the buffer, and said foot is applied or fitted laterally against the jaw to have firm bearing thereon,after which the bolt is passed through the slot and into a suitable socket in the jaw to clamp the buffer firmly on the jaw.

In lieu of the series of buffers we may employ a series of pressure-rolls 17, as shown by Figs. 5 and G, which bear or ride against the work to treat or finish the same and maintain the work in proper relation to the form. The pressure roll or rolls are mounted and sustained in a position with their axes parallel to the vertical line of the xed spindle. Each pressure-roll is shaped to conform to the contour of the exposed surface of the work, and it is mounted on one of the hinged jaws of the carrier to rotate with said carrier and to partake of the adjustment of the hinged jaw. Each pressure-roll is provided at its ends with pintles or trunnions 18, fitted in sockets 23 in the bearing-plate 19 and the overhanging plate 22. The bearing-plate 19 is seated firmly against the exposed face of the hinged jaw by which the pressure-roll is carried, and said bearing-plate is held firmly in place by a bolt 20, which passes through said plate and into asocket of the jaw. The overhanging upper plate 22 is parallel to the bearing-plate 19 to bring the socket 23 in said upper plate coincident with the socket 23 in the bearing-plate, and said upper plate 22 is connected rigidly to the bearing-plate by the uprghts 21, having its ends suitably fastened to said upper plate and the bearing-plate. It will thus be seen that each pressure-roll is shaped to conform to the work,that it is loosely or idly journaled in bearings which support said roll substantially parallel to the vertical line of the spindle, that the pressure-roll is mounted on the jaw for movement therewith toward or from the surface of the work, and that the roll travels with the carrier in its rotary motion.

In the preferred embodiment of ourinvention we employ a buffing-plate which has a broad working surface that conforms to the shape of the work on which it is designed to act, and as this working surface is quite broad we find it desirable to employ a series of these plates arranged or mounted on the carrier at points opposite to each. other. It will be understood that we do not restrict ourselves to the employment-of a single buffer-plate nor to the use of any desired number of pressurerolls, because we are aware that the number of buffer plates may be varied or that the number of pressure-rolls may be increased when the machine is constructed for use on articles of large diameter. While we prefer to employ copper as the material from which to construct each buffer, it is to be understood that we do not confine ourselves to this particular substance. The pressure-rolls may also be made of any suitable metal-aluminium preferred, although not strictly necessary.

The work or article to be treated is held by the form 12 and a suitable holder 23, and to ICO properly guide the work to the form we mount IZS ing parts of the machine, and at one end it is fitted on a vertical post 26, said arm being furnished with a binding-screw 25a, which is adapted to clamp the arm rigidly on the post. The post 26 has a threaded teno'n at its lower extremity, which passes through the bed-plate l, and on said tenon is screwed a nut 26a, which holds the post rigidly in place on the bed-plate.

The rotary carrier 4 is driven at suitable speed by means of a pulley 27, which is fitted on the tubular shaft 5 above said carrier-plate 6, and around this pulley passes a drivingbelt (not shown) adapted to be propelled by power from a suitable source--as, for instance, a line of shafting or an engine.

With the hinged jaws 8 on the revoluble carrier coacts the head 29 on an adjustingsleeve 28. This sleeve is fitted loosely on the upright fixed spindle 3, and it passes through the tubular shaft 5 of the revoluble carrier. The tubular carrier-shaft is mounted loosely on this adjusting-sleeve 28 to rotate freely thereon, and said adjusting-sleeve extends through the bearing-plate 6 of the carriershaft, so as to have its lower flanged end eX- posed for the attachment of an adjustingcollar. The upper end of this adj Listing-sleeve is threaded for the attachment of the head 29, which is in the form of a disk with a beveled periphery, the inclination of which conforms to the angle of the heels 10,forming parts of the hinged jaws 8. This head 29 of the adjusting-sleeve is arranged `in the rentrant angles formed by the inclined lugs ll and heels 10 of the hinged jaws, and said head is adapted to have a limited movement with the adjusting-sleeve 28 in said angles for the purpose of enabling the beveled bearing edge of the head to clear the inclined heels 10 of the jaws. The movement of the sleeve 28 and its head 29 is limited practically by the inclined lugs 11 of the jaws, and when the adjusting-sleeve and its head are raised toward the inclined lugs the heels l0 of the jaws are free from engagement with the head, so that the centrif ugal action of the hinged jaws, due to the rotary motion of the carrier, impels the jaws to positions where the buffers or the pressurerolls are free from contact with the surface of the Work.

We will now proceed to describe the mechanism by which the end wise movement is imparted to the adjusting-sleeve and its head, and in this connection we desire to call attention to the fact that the mechanism for adjusting the sleeve and its head is driven at a slow speed and at the same time is so constructed that the movement of the jaws is controlled positively and yet slowly to bring the buffers or pressure-rolls into gentle contact with the work. This is important when it is considered that the work is in a semiplastic or heated condition and that it is desirable to avoid marring the surface of the work treated by the improved machine.

The endwise movement of the headed adjusting-sleeve is effected primarily by a lever 30, which is fulcrumed at a point intermediate of its length to a short post 31, Xed on the bed-plate adjacent to the shaft-bearing 2, and the short arm of this lever 30 is pivotally attached, as at 32, to a collar 32, fitted loosely to the flanged foot of the adj usting-sleeve 28. At one side of the shaft-bearing 2 vand the short post 3l is arranged a liXed post 33,having its lower end rigidly secured to the bed-plate. On this vertical post is mounted the tubular shaft 35 of a large gear 34, the latter arranged to mesh with a driving-pinion 36, which is attached rigidly to the tubular shaft 5 of the rotary carrier 4 at a point adjacent to the driving-pulley 27. In the horizontal shaft-bearing 2 is journaled ashaft 37, one end of which carries a bevel-gear 38, which meshes with a corresponding bevel-gear 39, fastened rigidly to the tubular shaft 35 near the lower end thereof. The other end of this horizontal shaft 37 is provided with a spur-gear pinion 40, which in turn meshes with a large gear 44. This gear 44 has a tubular shaft 43, which is supported in a bearing 42 on the standard 41, iiXedto or integral with the bed-plate l, and in one face of this large gear 44 is provided a recess 45. y

46 indicates a treadle-lever suitably hinged on the bed-plate l, and the vertical arm of this treadle-lever is pivotally connected, as at 46a, to the rear end of a suitable shaft 47, which passes through the tubular shaft 43 of the large gear 44. The front end of this vsliding shaft 47 is provided with a friction-disk 48, which is mounted loosely thereon, and said friction-disk is arranged to be drawn/by the shaft into the recess 45 'of the gear 44, so that the inclined peripheral edge of said friction-disk 48 will impinge against the inclined annular wall of the recess 45 in the gear 44, thus making the disk 47 fast with the gear 44. This friction-disk has awrist-pin 49, to which is attached one end of a link 50, and the other end of this link is attached to the long arm of the lever 30, that imparts the endwise adjustment to the sleeve 28.

From the foregoing description, taken in connection with the drawings, it will be seen that we have provided a speed-reducing gear driven from the tubular shaft of the revoluble carrier to reduce the speed which is imparted to the friction-disk by, which the endwise movement of the adjusting-sleeve and its head is effected and that the rotary movement of this friction-disk is controlled entirely by its frictional contact with one of the train of differential gears. The adjustment of the friction-disk into and out of engagement with the gear forming a part of the train of speed-reducing gears is controlled entirely by the movement of the foot-treadle. While the revoluble carrier is driven directly from the pulley on its tubular shaft to rotate at a relatively high rate of speed, the endwise adjustment of the sleeve and its head is effected only at certain intervals. At the same IOO IIO

IZO

time the speed-reducing gear may be thrown into and out of action by the adjustment of the friction-disk which is controlled by the foot-treadle, and this movement of the friction-disk may be controlled to bring it very gently into contact with t-he gear 44, so that the movement of the headed adj Listing-sleeve 2S is not effected suddenly or violen tly,where by the contact of the buffers or pressure-rolls with the work may be secured very gently.

This being the construction of our machine, the operation may be described as follows: The glass article to be treated is rst heated by placing it in the glory-hole of a suitable furnace and is then fitted in the holder 23, The friction-disk being free from contact with the gear 44 and the driving-pulley being in motion, the carrier is revolved, so that the centrifugal action tends to throw the jaws S and the buffers or the pressure-rolls, whichever may be mounted thereon, outwardly away from the form on the fixed spindle. The holder is now adjusted to present the work to and over the fixed form, after which the operator presses on the treadle to bring the friction-disk gently into contact with the gear 44 of the train of speed-reducing gears. The speed-reducing gearing being driven positively from the tubular shaft of the revoluble carrier, the friction-disk 47 is rotated at a slow speed to move the lever 30 for the purpose of depressing the headed adjustingsleeve 28 to bring the head thereon into engagement with inclined heels of the hinged jaws. As the friction-disk is moved slowly through the described speed-reducing-gear connection with the shaft of the revoluble carrier the movement of the headed sleeve is effected in like manner to bring the jaws to positions where the buffers or pressure-rolls are brought gently into contact with the work, and as the carrier is revolved the bu ffers act on the work to impart the desired finish to said work. By releasing the pressure of the treadle-lever the friction-disk isvthrown out of engagement with the gear 44 and the adjusting-sleeve is moved to free its head from the jaws, whereupon the centrifugal action of the revoluble carrier throws the jaws to positions where the bulfers or pressure-rolls are free from contact with the work, allowing the holder and work to be raised from the fixed form 12. The work may now be removed, a new piece of work inserted in the holder, and the parts adjusted as described to repeat the operation.

Our improved machine effects a material saving in the time and labor required to iinish glass articles, because the machine may be controlled by unskilled attendants, such as boys, whose compensation or wages may be very low. The work may be quickly and easily adjusted to the holder and fed to the machine and in like manner removed therefrom. As the carrier rotates rapidly, the buffers or rolls act on the work to give the desired iinish thereto very quickly, thus enabling a large number of pieces of work to be placed in and removed from the machine in a short time.

It will be understood that the buffers and pressure-rolls are not designed to be attached to the jaws for operation at one and the same time, but that the buffers or the rolls are used separately or interchangeably. We employ a construction of the jaws which enables the buffers to be fixed thereto to partake of the centrifugal and rotary action of the jaws, or the buffers may be detached and the rolls mounted on the jaws, according as it is desired to treat the article by the rolls or the buffers. This interchangeability of the buffers for the rolls, or vice versa, may be effected easily and quickly, because the jaws are readily accessible.

While we have shown and described the machine as having the spindle and other working parts arranged in vertical position, we doA not desire to restrict ourselves to the precise arrangement of the parts, because the working elements of the machine may be arranged in horizontal positions.

IVe are aware that changes in the form and proportion of parts and in the details of construction may be made by a skilled mechanic without departing from the spirit or sacrificing the advantages of our invention, and we therefore reserve the right to make such modifications as clearly fall within the scope of the invention.

IVhat we claim isl. In a glass-finishing machine, the combination of a high-speed revoluble carrier, a series of work treating devices mounted thereon for centrifugal movement, a non-rotatable form occupying a position between said work-treating devices, means for adjusting the work-treating devices independently of the rotary motion thereof with said carrier, and speed-reducing gearing between the carrier and said adjusting mechanism for the work-treating devices, substantially as described.

2. In a glass-finishing machine, the combination with a stationary form, of a high-speed rotatable carrier, a series of work-treating devices mounted on said carrier around the form and arranged to be moved away from the latter by centrifugal force due to the r0- tation of said carrier, an adjusting mechanism for moving the work-treating devices simultaneously into operative relation to work on said form, a manually-adjustable clutch mechanism connected with the device for adjusting said work-treatin g devices, and speedreducing gear between said carrier and the clutch mechanism,substantially as described.

3. In a glass-finishing machine, the combination with a non-rotatable form, of a highspeed revoluble carrier, a series of centrifugal jaws hinged to said carrier, work-treating devices mounted in the jaws, and mechanism driven from the carrier and operatively fitted to the jaws to adjust the latter and the work- ICO treating devices slowly toward the form, said adjusting mechanism including a manuallycontrolled clutch, and speed-reducing gear, substantially as described.

4. In a glass-nishing machine, the combination with a non-rotating form and a revoluble carrier, of a series ofv centrifugal-acting jaws mounted on said carrier to rotate therewith, work-treating devices mounted on the jaws, and mechanism substantially as described Which counteracts the centrifugal tendency of the jaws, and adjusts the latter toward the form, substantially as and for the purposes described.

5. In a glass-finishing machine, the combination with a non-rotatable form and a revolving carrier, of work treating devices around the form, means for bringing the work-treating devices into contact with the work in said form, and speed-reducing gearing operatively connected with said adjusting means to impart slow movement to the work-treating devices in moving the same into contact with the work, substantially as and for the purposes described.

6. In a glass-finishing machine, the combination with a non-rotatable form and a revoluble carrier, of jaws mounted on said carrier to rotate therewith, work-treating devices mounted on said jaws, an adj usting-sleeve to engage with said jaws, and speed-reducing gearing operatively connected with said adjusting-sleeve, substantially as and for the purposes described.

7. In a glass-finishing machine, the combination with a form, and a carrier, of jaws mounted on said carrier, work-treating devices on said jaws, an adj usting-sleeve to engage with said jaws, a manually-operated friction device operatively connected with said adjusting-screw, and speed -reducing gearing between the revoluble carrier and said friction device, substantially as and for the purposes described.

8. In a glass-nishing machine, the combi- :nation with a form' and a revoluble carrier, of a series of jaws carrying work-treating devices, an ad justin g-sleeve to engage with said jaws, a lever connected with said adjustingsleeve, a slidable spindle carrying a frictiondisk which is linked to said lever, and a train of speed-reducing gears driven by the revoluble carrier and having one member thereof arranged to engage with the friction-disk, substantially as described.

9. In a glass-iinishing machine, the combination with a form and a revoluble carrier, of hinged jaws mounted on said carrier and supporting work-treatin g devices in operative relation to said form, a headed adjustingsleeve to engage with said jaws, a lever connected with said adjusting-sleeve, a slidable Shaft carrying a friction-disk which is linked to said lever, a gear supported on a fixed spindle or post and meshing with a gear on the shaft of the revoluble carrier, and a counter-shaft geared to the first-mentioned gear and driving a recessed gear to coact with the friction-disk, substantially as and for the purposes described.

l0. In a glass-finishing machine, the combination with a non-rotatable form, of a revoluble carrier supporting a series of worktreating devices, a suitable work-holder arranged in axial alinement with said form and guided toward or from the latter, and mechanism for adjusting the work-treating devices toward or from the work fitted to said form substantially as and for the purposes described.

ll. In a glass-finishing machine, t-he combination with a stationary form, of a revoluble carrier, hinged jaws attached to said carrier, a series of plate-like buffers iixed to said jaws to move therewith, and mechanism for imparting slow movement to said jaws to bring the buffers gently into contact with the work, substantially as and for the purposes described.

12. In a glass-finishing machine, the combination with a form, and a carrier, of centrifugal-acting jaws mounted on the carrier, adjusting means for said jaws, and a series of work-treatin g rolls journaled idly on the jaws and arranged normally with their axes parallel to the axis of the form, substantially as described.

13. In a glass-finishing machine, the combination with a form, and a carrier, of centrifugal-acting jaws, plates fixed thereto and carrying overhead journal plates, a series of work treating rolls journaled idly in said plates and adapted with the same to partake of the centrifugal motion of the jaws, and an adjusting mechanism engaging with said jaws, substantially as described.

14. In a glass-finishing machine,the combination with a non-rotatable form, and a revoluble carrier, of a series of centrifugal jaws mounted on the carrier, a series of worktreating devices carried by said jaws, and a positively-driven and manuallycontrolled mechanism having a movable element which is common to all the jaws and arranged to .move the latter and the work-treating devices toward the form, substantially as described.

In testimony that we claim the foregoing as our own we have hereto affixed our signatures in the presence of two witnesses.

ANDREW J OI-IN SANFORD. WILLIAM A. INGLER. Witnesses for Sanford:

J. LBENEY, H. W. LUGENBEEL. Witnesses for Ingler:

HENRY CARL, REEsE WILLIAMS.

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