US700427A - Leer for annealing plate-glass. - Google Patents

Description

No. 700,427. Patented May 20, 1902.

w. n. KEYES. v LEER FOB ANN EALING PLATE GLASS.

' (Application filed Sept. 4, 1901.)

(No Mqdel.) v 2 Sheets-Sheet l.

WITNESSES. INVENTURP Rm: nzrzns ca. PHOTO-L|THO., WASHINGTON, I16.

Patented May 20, I902.

' w. n. KEYES. LEER FOR ANNEALING PLATE GLASS.

(Application filed SW. 4, 1901.)

2 Sheets-Sheet 2 (N0 Mudei.)

7 1, Q I 0. 1 O F Q Q g mm m MW ii I r. M m w 4 WM WITNESSES- NVENTEIR w. 2 magma I UNlTE-D, STATES 1 PATENT QQFF E.

WASHINGTON n, REYES, or 'iirihrnsvlLtn, PENNSYLVAN.IA;,-

LEERC' FOB 'AYNNEALLING" PLATE-G LASS'.

' srfincrrionrxon forming part er Letters Patent No. 700,427, dated May 2o, 19o2.

Application filed $eptember 4,1991. $eria1 No. 74.285. (No model.) Q

To all whom it may concern: v

' Be it known that WASHIN TON D. KEYEs,

in accordance with .my invention.

a citizen of the United-States, residing at Blairsville,in the county of-Indiana and State of Pennsylvania, have invented certainnew and usefullmprovementsin-LeersforAnnealing Plate-Glass, of which the following is a specification, reference being had therein to the accompanyingdrawings. r I This invention relates to lcers for annealing plate-glass, and has particular reference to certain improvements inithe construction of a circular'or other continuous leer through which the plates are 'carriedon cars from the casting-table to the cutting-table.

The invention consists in the novel features of construction and in the combination and arrangement of parts hereinafter fully described and claimed, and illustrated by the accompanying drawings, wherein- Figure Us a plan view of a leer constructed Fig. 2 is a cross-sectional view on line 2 2 otFig. 1, and

Fig. 3 is a cross-section taken on line 3 3 of the same figure. Fig. eis an elevation of the inlet portionof the leer, and Fig-5 is a sec: tional planview of the same. Fig". 6 is a vertical longitudinal sectional view of theo'utlet portion. Fig. 7 isa sectionalview on line 7 7 of Fig. 1.

Referring to the drawings, 2 representsa continuous tunnel, preferably circular in form and provided with tracks 3 on thefloor thereof, upon which move the circular or endless series of cars 4, coupled together at 5. The tunnel is closed its entire length, save for interruption 6 of segmental form to correspond to the segmental-shaped cars, which pass therethrough progressively, carrying the annealed plates, which are discharged onto cutting-table 7. The opposite ends or terminals of the tunnel at incision 6 are closed, save when the cars are moving, by vertically-moving doors 8, which are so spaced apart and arranged as to drop between the ears, the discharging-car being thus separated while at rest from. the ad: jacent cars to which it is coupled, as shown in Fig. 6. Secured to the under sides of the cars are the rack-sections 9, which form a substantially continuous rack,and engaging the same are pinions 10' on drive-shafts 10, ex-

to the circle of cars.

movementpasses a car to discharging posi-' tion; 1

Immediately beneath the floor of tunnel 2 is a flue 14.1 At the inner end of this flue, which is as near as practicable. to discharge openingt, is grate 15, upon which coke may be burned, or a gas-burner ;1na'y be provided where gas-is available. Flue 14 extendsun-v jacentjdischarge 6, where it'communicates with stack 16, WVith this grate and flue the portion of the tunnel between the discharge 6 and the casting-table or that'part which remay be substituted for grate 17, if desired. With this source of heat the upper portions reheated, ready to receive the freshly-cast plates, and also a further means is provided for maintaining a gradually-reduced temperature in the tunnel as the discharge-opening is five iann ealing'temperature, the same being highest-for reheating the empty cars while passing to charging position and of such gradually-reducing degree as the discharge is approached that the plates emerge perfectly annealed and ready for removal-to the cutting lei The'doors 8, which are notched, asshown,

and top surfaces of the cars are thoroughly tending from three or more motors 11-,ar-

ranged exterior of the leer, and by this means uniform intermittent movement is imparted] This movement occurs after-a freshly-cast plateis moved to position I oua carthroughinlet opening 12 from caste 7 ingtable 13, and'withdoors 8 raised the same.

interruptedly around thetunnel to a point ad-- ceives the cars immediatelyafter the glass is tween tunnel 2 and stack 16. Agas-burner approached. With proper manipulation the two grates combine to provide a most effect to move down over car-couplings 5 and rack I 9, effectually close the tunnel-openings at the point of discharge and prevent admission and circulation of cold air. The tunnel is thus substantially tight and the plates fully protected against injurious drafts. As the plates are not disturbed or manipulated in any manner during the annealing process, there is practically no waste.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. An improved leer comprising a tunnel having inlet and discharge openings, platecarrying means Within the tunnel, a flue beneath the tunnel-floor, a stack communicatingwith the tunnel and flue, and means for supplying heat to the tunnel and line, substantially as shown and described.

2. An improved leer comprising a tunnel having inlet and discharge openings, platecarrying means Within the tunnel, a fine beneath the tunnel-floor, means adjacent the tunnel-inlet opening for supplying heat to the tunnel and flue, and a stack adjacent the tunnel-outlet opening having separate connections with the flue and tunnel, substaniially as shown and described.

3. An improved leer comprising a circular tunnel having a transverse opening or inter ruption forming a discharging-space, the tunnel being provided with an inlet-opening and with heating means, an endless plate-conveyer within the tuunel and traversing the said discharging-space, mechanism for actuating the conveyer, and means for closing the tunnel at opposite ends of the discharging-space with a portion of the conveyer in said space, substantially as shown and deing the tunnel at opposite ends of the discharging-space, substantially as shown and described.

5. An improved leer comprising a circular tunnel having a transverse opening or interruption forming a discharging-space, the tunnel being provided with an inlet-opening and with heating means, an endless series of plate-carriers movable in the tunnel, means for actuating the carriers, and means for closing the tunnel at opposite ends of the dis charging-space with the dischargingcarrier intermediate theclosing means, substantially as shown and described.

6. An improved leer comprising a circular tunnel having an inlet-opening, an endless series of segm ental-shaped plate-carriers movable in the tunnel, means for actuating the carriers, means for heating the tunnel, the tunnel being formed with a vertical opening orinterruption corresponding in outline to any one of the carriers, and doors movable between the carriers for closing the tunnel at opposite ends of the said discharging-opem ing, substantially as shown and described.

7. An improved leer comprising a circular tunnel formed with an inlet-opening, an endless series of segmental-shaped carriers movable in the tunnel, means for actuating the carriers, the tunnel being formed with a transverse segmental-shaped opening or interruption corresponding in size to any one of the carriers, doors at opposite ends of said opening for closing the tunnel with a carrier positioned Within said space for discharging, a horizontal flue beneath the tunnel-floor having its inlet end between the tunnel inlet and outlet openings, a stack adjacent the tunneloutlet With which the tunnel and flue communicate, and means for supplying heat to the flue and tunnel, substantially as shown and described.

In testimony whereof I aflix my signature in presence of-two witnesses.

YVASHINGTON D. KEYES.

Witnesses:

J. M. NESBIT, ALEX. S. MABoN.

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