US751445A - Mo model - Google Patents

Description

'PATENTBD PEB. 9,1904.

. BAKER.

DRAW PLATE OVEN.

APPLICATION FILED SEPT. 1a. 1902.

3 SHEETS-SHEET l.

No MODEL No. 751,445. PATBNTED 3513.9, 1904.

- G.S;BAKER.

DRAW PLATE OVEN., l

APPLIGATION FILED SEPT, 18.1902.

No. 751,445.A PATENTED FEB. 9,1904.

` v l l D A LATE OVEN.

- APPLI T N FILED SEPT. 18. 1902.

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Patented February 9, 1994.

Erica.

GEORGE SAMUEL BAKER, OE LONDON, ENGLAND.

Y pRAw-PrArE OVEN.

SPECIFICATION forming part of Letters Patent No. 751,445, dated vIelzoruaryy 9, 1904.`

Application filed September 18,1902. Serial No. 128,931. (No model.) V

To all whom zit/may concern:

l Be it known that I, GEORGESAMUEL BAKER,

Aa subject of the King of England, residing at London,- England, have invented certain new and useful Improvements in or Relating to4 Draw-Plate Ovens,lv of which the following is a specification.

This invention relates to draw-plate ovens having two decks; and it'consistsin certain improvements in construction 'for the purpose ot iaclhtating the lworking and increasing the y eiiiciencvof the oven, hereinafter fully de- 4scrlbed with reference to the accompanying drawings, ofy which- Figurel is a'frontelevation of the improved Fig. 2 is a vertical longitudinal section oven. l on the line A A of Fig. 1. Fig. 3. is a hori- Zontal section of th'e'front of the oven on the line B B of Fig. 1, and Fig. 4 is a.perspective view of a modified form of construction.

Like reference-numerals indicatelike parts in all the figures.

The general form of the oven and of the. `iiues 1s .of known construction and arrangeknown manner of a metal plate lined with tirebrick and strengthened by cross-girders, and each occupies the whole supericial iioor area of its baking-chamber. They lare numbered 2 and 3 in the upper and lower chamber, .respectively. v

The back end of each draw-plate rests on an axle-6, carrying a free wheel 5" on each end, these wheelstrunning on vrails .4, the wheels andv rails being positioned in a chase or groove formed in each side wall of the chambers. These chases or grooves are continued beyond the front by hollow eitensions 7 ,i formed integralwith or secured to the front frame of the o ven, enabling the draw-plates to be drawn entirely outside the oven. l

The front of each draw-plateis formed of a strong girder or plate. VReferring now to the lower draw-plate 3, its front .frame 8 isformed with a ledge 9, which forms a rest for the door 10. The door isfarranged to slide in guides 11 and is operated by apairof pinions 12, engaging vertical `racks-13 and carried on a rod 14. lThe doorsv are provided with -counterweights 15,

.and preferably these are carried, asv shown,

in recesses formed in the-front of .the oven.

Near eachl end of the frame 8 is a leg 16, fixed A on the front "of the said frame and bent outwardly,' so as to be free of the front of the f oven, and having its free end forked to receive afwheel 17, running on a rail 18 onthe bakehouse-oor. i

The draw-plate 2 of the upper chamber has' l a frame 19 similar to that of the lower drawplata-andthe upper chamber has Ia sliding door.24 rack and pinion worked similar tol that above described. The frame19 also provided Vwith two supportingflegs 20; but

each of these is vcarried on: they outer side ofan o'set or lug 21, extendingin front, one at each end ofthe frame. The legs are straight-4 that is, not curved athwart theboiler-and are so arranged that the distance between them` is not less than the greatest width of the drawf plate. The free ends of the legs 20 are forked to receive' wheels 22, running on rails 23 on the floor of the bakery. The legs 20 are made hollow and open at the back, so as to receive the hollow vextensions 7 which fit into them.

In the above-described form (shown in Figs. 1,. 2, and '3) each draw-plate proper is lintegral with its front gil-der or plate. It is evident that the latter might form part of aframe on which an independent f draw-plate movablyQ rests. Such a construction is shown in Fig.

4, inl which the draw-plates 28 are provided with short legs 25, having wheels-26, running y on rails 27, which are rigidly secured to the front plates 8 and 19, respectively and are' connected by cross-girders forming a frame, the back end 4of which rests on the running axles 6'.

By the construction and arrangements of parts above described while the whole available bakingspace of each chamber is occupied -by its draw-plate these canvbe withdrawn completely out of the chambers either separately or together.

' What I claim as my invention, and-desire -IOO to secure by Letters Patent, is

In a two-decker oven and in combination, two baking-chambers of equ'al width one above the other, a traveling carriage and a drawplate for each chamber, the draw-plates being of equal width, means to support the carriage Within the oven, and two legs with wheels supporting each carriage outside the oven, each leg of the upper carriage being carried `on a'lateral offset formed on the front plate of the said carriage, each leg being straight, that is not 'curved athwart the oven and with a distance between the two legs atany point not less than the greatest width of a drawplate, substantially as described. A

In testimony whereof have signed my name to this specification inthe presence of two Subscribing witnesses.

GEORGE SAMUEL BAKER.

Witnesses:

GEO. J. WV. FRANKLIN, T. J. OsMAN.

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