US696455A

US696455A - Glass-polishing machine.

Info

Publication number: US696455A
Application number: US8229301A
Authority: US
Inventors: William Lahodny
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-11-14
Filing date: 1901-11-14
Publication date: 1902-04-01
Anticipated expiration: 1919-04-01

Description

No. 696,455. Patented Apr. l, I902.

W. LAHUDNY.

GLASS PULISHING MACHINE.

(Application filed Nov. 14, 1901.) (No Model.) 3 Sheets-Sheet I.

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THE Noam PEYER$ co. PnoTo-umu, WASHINGTON, o. c.

No. 696,455. Patented Apr. I, 1902.

- W. LAHUDNY.

GLASS POLISHING MACHINE.

(Application filed Nov. 14, 1901.) (No Model.) 3 SheetsSheei 2.

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v u I BY W. LAHUDNY.

GLASS POUSHING MACHINE.

(Application filed Nov. 14, 1901.)

Patented Apr. I902.

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ATT IR' W NITED Sterne nrnivr @rmcn WVILLIAM LAHODNY, OF AKRON, OIIIO.

GLASS-POLISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 696,455, dated April 1, 1902.. Application filed November 14, 1901. Serial No. 82,293. (No model.)

To all whom it Hwy concern:

Be it known that LWILLIAM LAHODNY, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented a certain new and useful Improvement in Glass-Polishing Machines, of which the following is a specification.

My invention has relation to improvements in machines for grinding and polishing the surface of glass; and the object of In yinvention is to produce a machine having a revoluble table adapted to be moved horizontally about a center to sustain the sheet of glass, and power-driven mechanism to carry interchangeable grinding and polishing wheels, with mechanism to move said grinding and polishing mechanism vertically and horizontally to apply it to the glass plate and to cause it to traverse the plate in any direction and raise it from contact therewith when the Work is completed.

To the aforesaid objects my invention consists in the peculiar and novel construction, arrangement, and combination of parts hereinafter described and then specifically pointed out in the claims, reference being had to the accompanying drawings, which form a part of this specification.

In the accompanying drawings, in which similar reference-numerals indicate like parts in the different figures, Figure 1 is a side elevation of my said machine; Fig. 2, a plan; Fig. 3, a central vertical section, and Fig. 4 a section at the line a: :r of Fig. 3.

Referring to these figures, 1 is a vertical metallic post, preferably hollow, having a broad base for steadiness, above which it is turned a true cylinder 2 for a portion of its height, and thence tapers to a flanged top 3 for the purpose of detachably securing the upper mechanism. Surrounding the cylindrical portion 2 is a split sleeve 4, adapted to be tightened by bolts and having from one side an integral horizontal arm 5, terminating in a short vertical cylindrical sleeve 6, in which is fitted to revolve a vertical axle of a horizontal circular plate or table 7. This table has an outer rim, within which is a wood hoop 8 for holding tacks to retain the blanket, inside of. which hoop is a body 9, of cement, smoothly finished on top, and on which the plate 10, of glass, rests above the blanket.

On one side of the sleeve4. is an offset portion 11, forming the case of a vertical channel, in which is placed a vertical rack 12, curved on its inner face to conform to the part 2, and in the portion 11 is journaled a short shaft 13, that bears a pinion that meshes in the rack 12, and a ratchet-wheel 14, adapted to be retained by a pawl 15, by which the sleeve and table maybe elevated and retained at any desired height.

. Secured to the flange 3 is a similar flange 16, from which rises a cylindrical top 17, on which is fitted to revolve a sleeve 18, from one side of which projects a horizontal arm 19, having raised sides with outwardly-bow eled outer faces, forming a dovetailed guide and an enlarged longitudinal opening through the bottom for the passage of machinery, to be described. Fitted to slide on the guide of this arm is a carriage 20, bearing at one side a nut 21, in which runs a screw 22, revolubly mounted at its ends in bearing 23 24, and driven by a hand-wheel 25.

From the lower part of the carriage 20 is a hollow cylinder 26, on which is mounted a sleeve 27, from the opposite sides of which project and depend arms 28. Journaled in the bottom of the carriage 20 and the bottom of the cylinder 26 is a vertical shaft 29, hav ing at the top a bevel-gear 30, splined there on, and at the bottom a bevel-gear 31, that meshes in a bevel-gear 32 on a shaft 33, journaled in the arms 28. The shaft 33 bears a pinion 34, that meshes in a pinion or idler 35, that meshes in a gear 36 on the grindingwheel shaft 37. This shaft 37 is journaled in boxes on the lower ends of the arms 28 and has the central part screw-threaded and provided with the usual clamping-nuts, by which the grinding-wheel 38 is detachably secured thereon.

Motion is imparted to the grinding-wheel in the following manner: In the post 1 is j our naled a shaft 39, with one end extending out side of the post and supported in a bracket 40 and bearing fast and loose pulleys 11 4:2. This shaft bears a bevel-gear 43, that meshes in a bevel-gear 14 on the lower end of a shaft 15, journaled in the top of the post 1. and a cross-bar 46, and has a fixed collar that rests on the cross-bar 4G and sustains it against descent. The upper end of the shaft 4513mm 7 car 47, that meshes in a bevel-gear e end of a horizontal shaft 49, jour 1n bearings 50 51 on the arm 19. This it bears an intermediate bevel-gear 52, rat meshes in the gear 30, and thus drives the grinding'and polishing wheel.

The grinding mechanism is arranged to be slightly raised and forced downward by the following devices: On the shaft 29 is a loose collar 53, retained between two fixed collars 54: 55, and from opposite sides project pins 56, that enter openings in opposite arms of a forked lever 57, pivoted at one end in brackets 58, depending from the carriage 20 and having at its outer end asuitable handle, by which it may be manipulated.

The grinding mechanism may be revolved on the cylinder 26 by the following mechanism: On top of and integral with the sleeve 27 is a spur-gear 59, that meshes in a pinion on the bottom of a shaft 61, journaled in the bottom of the carriage 20, and a bracket 62, extending from one side of the depending cylinder 26. The pinion 60 is made especially long to prevent escaping from the gear 59 as the grinding mechanism is moved vertically. On the shaft 29 within the arm 19 is a pinion 63, that meshes in a gear 64 on the shaft 61, and on the hub of this gear is the lower member 65 of a toothed clutch. The upper member 66 of this clutch is keyed to slide on this shaft 61 and raised and lowered by a lever 67, pivoted at one end to a bracket of the arm 5.

In operation a blanket is placed on the cement cover 9 of the plate 7 and secured by being tacked to the Wood hoop 8. This is readily done by swinging the table 7 around from under the grinding machinery. A sheet of glass 10 is then placed on the blanket and the table swung around under the grinding machinery. At first a grinding-wheel 38 is mounted on the shaft 37 and motion communicated to it from the pulley 41 through the machinery hereinbefore described. This wheel is preferably of copper and used in connection with emery to cut away the higher portions of the plate or to cut out scratches. The plate of glass is then submitted to the action of the wheel by swinging the arm 19 around on the post 1, as well as revolving the table on the cylinder 6, and also reciprocating the carriage 20 along the arm 19 by means of the screw 22. In this operation the vertical plane of the wheel 38 can be changed at will by throwing the clutch member 66 into the member 65 by means of the lever 67.

When by the foregoing process the face of the plate has been ground to an even plane and all scratches and uneven places removed, the wheel 38 is removed and replaced with polishing-wheels of felt applied in the same manner in connection with a finer grit.

The oftice of the rack 12 and the shaft 13, with its ratchet and pinion and the pawl 15, is to adapt the height of the table 7 to the thickness of the glass and the diameter of the grinding and polishing wheels.

The lever57 is employed to increase or diminish the pressure of the grinding and polishing wheels on the plate of glass and to raise them in introducing it under them and removing it when polished.

Having thus described my invention, what I claim, and desire to secure by Letters Iatent, is-

1. In a glass grinding and polishing machine the combination of a supporting verti cal post, with a revoluble horizontal arm supported thereon, with means for moving and retaining said arm at different heights, and a revoluble table supported at the free end of said arm, and a horizontal arm revolubly supported on the top of said post bearing a carriage longitudinally movable thereon, with grinding mechanism supported in said carriage arranged to engage a plate of glass on said table, with mechanism for driving said grinding mechanism, andfor moving said carriage along said arm, substantially as shown and described.

2. In a glass-polishing machine having a supporting vertical post,with a revoluble horizontal arm supported thereon with means for moving and retaining it at different heights thereon, and a horizontal table revolubly mounted in the outer end of said arm, ahorizonta] arm revolubly mounted on the top of said post bearing a carriage adapted to be reciprocated lengthwise thereof, with grinding mechanism mounted on said carriage adapted to engage a plate of glass on said table, and revoluble on said carriage, with mechanism adapted to drive said grinding mechanism, and a clutch arranged to engage said driving mechanism to revolve said grinding mechanism and means for throwing said clutch into and out of engagement,substantially as shown and described. I

3. In a glass grinding and polishing machine the combination with a supporting-post of a horizontal arm revolubly mounted thereon and mechanism for raising, lowering and arresting said arm thereon, a horizontal table revolubly mounted in the free end of said arm to hold the glass, a horizontal arm mounted on the top of said post having sliding ways with a carriage mounted thereon, and means for moving said carriage lengthwise thereof, a frame horizontally revoluble on said carriage adapted to bear grinding and polishing machinery, and means for moving said frame vertically on said carriage, with driving mechanism mounted in said post and connected by intermediate mechanism to drive said grinding and polishing mechanism and means as a lever to regulate the pressure of said grinding and polishing mechanism with reference to a plate of glass on said table, substantially as shown and described.

4. In a glass grinding and polishing machine, the combination with a vertical post, a horizontal arm revoluble thereon provided with means for raising and lowering it, a table revolubly mounted on the free end of said arm, a horizontal arm revolubly attached to the top of said post, a carriage slidable on said arm, a screw for driving said carriage along said arm, a frame revolubly supported on and depending from said carriage to retain revoluble grinding and polishing mechanism above and adjacent to said table, driv ing mechanism mounted in said post connected by intermediate machinery with said grinding and polishing mechanism, means for raising and lowering said frame, and a clutch and intermediate mechanism to cause said driving mechanism to rotate said frame, and means for operating said clutch, substantially as shown and described.

5. An improved table for glass grinding and polishing machines consisting of a metallic plate with a raised rim having a band of wood within said rim and a bed of cement within said wood rim, said wood and cement having their tops in the same horizontal plane, substantially as shown anddescribed.

In testimony that I claim the above I hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM LAHODNY.

In presence of-- WM. 0. ROMPE, P. E. WELTON.