US1152969A - Ware-manufacturing. - Google Patents

Description

C. E. QUIMBY.

WARE MANUFACTURING. APPLICATION FILED SEPT. I6. I9I2. v Lfg@ Patentedept. 7, N15.

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C. E. QUIMBY. WARE MANUFACTURING.

APPLICATION-FILED SEPT. 16. |912. Lggg, PatentedSept. 7, 1910.

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CLARENCE E. QUIIVIBY, 0F GENEVA, NEW YORK, .ASSIG-NOR, BY MESNE ASSIGNMENTS,

T0 )KRYPTOK COMPANY, OF NEW YORK, N. Y., A CORORATION OF NlWr YORK.

WARE-MANUFACTURING.

Specification of Letters Patent.

Patented Sept. '7, 1915.

To all whom it may concern Be it known that I, CLARENCE E. QUIMBY, a citizen'of the United States, residing at Geneva, Ontario county, New York, have invented new and useful W'areManufacturing, of which the following is a specification.

This invention relates to mechanism for use in the production of ware. f

This invention has utility when embodied iii-connection with a furnace, or furnace and oven, especially for the manufacture of lenses.

Referring to the drawings: Figure 1 is a fragmentary side elevation of an embodimen-t of the invention in a furnace, with the annealing oven partially broken away; Fig. 2 is a fragmentary plan view, on an enlarged scale of the furnace charging device; Fig. 3, is a sectional view of a portion of the way, showing features of the charging device; Fig. t is a transverse section of the way; Fig. 5 is a transversesection of the oven on the line V-V Fig. 1; Fig. 6 is a medial vertical section through a slidable block adapted to be charged in the furnace and oven; Fig. 7 is a slidable charging block for toric lens element dropping, instead of secondary lens element dropping as shown in Fig. 6; Fig. 8 is a slidable charging block for secondary lens element curving by plunger action upon the softened blank; Fig. 9 is a slidable charging block for lens element dropping-when centrally poised, instead of peripherally sustained as in Figs. G, 7, 8; Fig. 10 is a vertical section of a charging block for fusing two lens elements into a bifocal lens unit; Fig. 11 is a plan view, with parts broken away, of a pair of bifocal lens elements for fusing into a unit, together with the supporting block therefor; and Fig. 12 is a vertical section through the de- 'vice of Fig. 12 after the fusing action has occurred.

The motor 1 is connected through speed reduction transmission devices -to drive the worm shaft 2 having its worm in mesh with the Worm wheel 3 on the shaft 4 carrying the cam 5, which is mounted in the slot 6 of the Way 7. Rotation of the cam 5 through the opening in the plate 8 serves to actuate the plate in onel direction, while the line 9 passing over the pulley 10 to the weight 11 serves t0 hold the plate 8 against the cani and accordingly actuate the plate 8 in the direction opposite to the cam actuation. 'Slidable block or ware supports 12 may be supplied in quantity to the chute or bin 13, into the bottom of which the plate 8 extends in its reciprocations to force the bottom set of blocks through the opening 14 into the charging way 7. The magazine or bin 13 is shown of proportion to take two stacks of blocks, and thereby give the device double the capacity one series of blocks wouldrgive. The contour of the cam 5v is such that during the greater portion of the rotation the plate 8 is being gradually moved to steadily actuate the blocks forward, incidentally pushing the preceding blocks in the way 7 without concussion, vibration or disturbance. When the pair of blocks is fed out of the bin 13, the continued rotation of the cam permits the plate 8 to suddenlyrecede as actuated hy the .weight 11 to engage the next pair of blocks 12. Notwithstanding the return travel of the plate S is rapid and occurs through a minimum arc of movement of the cam 5, the actuation of the plates fed is slowly taken up by hevcam and these plates or blocks regular y-moved forward. By this automatic feeding or charging device the ware carrying blocks are lirst carried into the furnace 15 fortreatment, which may be such heating as desired, as heating to soften for forcing a dropping of a lensI element to a curve, for the softening of the lens element so itymay of its own weight drop to form a curve, drop directly to form, or for fusing as of 4the two elements of a bifocal lens into a unit. The furnace is shown as of the gas type, with reducing valve, indicator, pyrometer, and full equipment for accurate control. The transmission gearing between the motor 1 and the worm shaft 2 may be changed to different speed relations and. thus readily adjust the timing in the furnace 15.

The way 7 .is shown as continuous through the furnace 15 into and through the annealing oven 16, which in this instance is heated by the gases from the furnace 15 passing therethrough and out the flue 17. The oven 1G is made refractory and a non-conductor of heat by'the lirebriek lining and asbestos jacketing thereof. The gradual spending of the heat units of the gases from the furnace as they travel along the way 7 in theoven 16 permits of that uniform cooling of the ware essential to the properrelief of the ware from any internal strains and insures the production of a uniformly tough output with Ano trouble from manual handling of heated ware or any exposures to sudden temperature changes 'with its attendant fracture losses. incidentally there is a continuous and rapid production of a large output. The blocks are cool when handled for charging into the magazine 13, and are cool to be re-handled after having left the oven 1G in their continuous travel through the furnace along the way 7. |The blocks serve to transmit the charging and driving action of the reciprocable plate S throughout the extent of the way 7, for the blocks conveniently .in abutting relation and confined to travel in the direct line through the'furnace and annealing oven by the way 7. The timing of the plate 8, as well as adjustment of the furnace 15 may be such as to adapt to various operations as well as different wares. Oven door 1S may permit .access to the ware at once after heating. Removable plates or `aprons 19 may be placed adjacent the oven outlet and the furnace intake better to retain the heat in the mechanism and eliminate any objectionable cold air currents.

In charging of the ware, the blocks 20, similar to theblocks 12, are provided with the central recess 21 which may engage the periphery of a lens element 22 for dropping. To preclude dust in the region of the furnace, or from the furnace or oven being vdeposited on the softened lens blank during the treating operations, the cover 23 may to advantage be used, as shown in Fig. 6.

The 4dropping to form, as of blanks for toric lens elements, may be of a flat element placed on the block 12 provided with the seat or recess 24 therein, to which the element 25 is dropped (Fig. 7).

In the dropping above described, it isI entirely by heating to softening stageand then allowing the metal to assume the curvature of its own weight. The drop-- ping may be elfected by less heating in the disclosure of Fig. 8, in which instance it is preferable to have the lens element 26, which engages the walls of the recess 21 of the block 20, of thicker section centrally. The central portion' is accordingly more rigid, and with thepartial softening, access to the ware through door 18 for removal and action of the plunger 27 on the blank 26 for a definite travel, insures the production of the desired curve on the lower side of the element 26. In the instances of Figs. 6 and 8, there is produced a fire finished curved surface in a simple economical manner, and without grinding. Likewise in Fig. 9 the convex surface is produced without grinding. 1n this instance the block 28 is provided with the projecting seat 29 upon which the flat blank or lens element 30 is placed, and the softening action of heating causes the element to settle about the seat 29, thus giving the upper surface a lire-finished curve. Besides these curveforming operations in the furnace and oven treatment of ware manufactureherein, there may be most advantageously performed fusing operations in the manufacture of bifocal lenses. The block 31, Fig. 10, may carry the seat 32 for the torio lens element 33 provided with a seat for the secondary lens element 34, usually of softer, or rather more readily fusible glass, as iint glass, with the primary lens element 33 of higher melting or heat softening temperature material, as crown glass. The cover 23 has eX- cepiional 'utility in this operation, in preventing disturbance of the lens elements and not allowing any foreign material to settle into the elements or adjacent the fusion thereof. Plane, as well as toric biy focals may' be made, as shown in Figs. 11, 12, wherein the support of block 35 carries the lens element 36 having the flint glass element 37, which after fusion produce the integral bifocal lens having the primary section 38 and the secondary section 39.#

lVhat is claimed and it is desired to secure by Letters Patent is:

An apparatus for making glass articles comprising a continuous way; an automatic feeding device, a magazine, a furnace and an annealing oven located successively along said way, said way passing through thefurnace and oven, the magazine and furnace being spaced apart, the former carrying a quantity of blocks adapted ,to be successively moved from the magazine to the way by said feeding device, said blocks acting upon each other to communicate movement to all of the blocks along the way through the furnace and oven.

Intestimony whereof 1 hereunto set my hand in the presence of two witnesses.

CLARENCE E. QUMBY.

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