US1053020A - Furnace-feeding apparatus. - Google Patents

Description

J. T. FETHERSTON.

FURNACE FBEDING APPARATUS. 1

APPLIUATIONEILBD 312.11, 1910.

1,053,620. Patented Feb.11,1913.

2 SHEETS-SHEET l.

J. T. PETHERSTON.

PURNAGB PBEDING APPARATUS.

2 SHEETS-SHEET 2.

Patented Feb. 11, 1913.

APPLICATION FILED FEB. 2,1910.

LSE.

paratus.

UNITED 4STATES' 'PATENT OFFTCE.

JOHN T. FETHERSTON,.OF NEW- YORK. N. Y., ASLSIGNOR OF ONE-HALF TO POWER SPECIALTY COMPANY, 0F NEW YORK, N. Y., A] CORPORATION OF NEW YORK.

FURNACE-FEEDING APPARATUS.

Specification of Letters Patent.

Patented Feb. 11, 1913.

To all whom t may concern Be it known that I, JOHN T. FETHERs'roN, a citizen of the United States, residing at New York, in the county of Richmond and State of New York, have invented certain new and useful Improvements'in Furnace- Feeding Apparatus, of which the following is a full, clear, and exact description.

This invention relates to furnace-feeding apparatus, more particularly for so-called destructor furnaces in which household refuse and other waste materials are con sumed, and has for its chief object to provide power-actuated means for the purpose which shall be simple in construction and thoroughly effective lin operation.

To this and other ends the invention which I desire to cover consists in the novel features and combinations of elements hereinafter described. v

The preferred embodiment is illustrated in the annexed drawings, and referring now thereto, F' re 1 is a plan view of the ap# Fing. 2 is a side elevation, partly in section. Fig. 3 is a crosss section on a larger scale, taken on line 3 3 of Fig. 1,

but with the scraper or unloading device in an advanced position.

.'Thefurnace is shown diagrammatically at 4, and is provided with a suitable opening 5 through which the material is introduced, and back of this opening the feeding or charging apparatus is arranged.

The main element of the feeding apparatusA is a rectangular charging frame the sides of which are formed by two channel irons 6, 6, having their anges disposed inwardly. At the vfront the side members mentioned are connected by a bottom plate 7, so that the forward portion of the structure constitutes a receptacle or pan for the material which is to be introduced into the furnace. This pan, practically as wide as the furnace, is open at the front, and eX- tending across the pan is a movable wall or follower 8, normally resting against two.

stops or abutments 9, 9, mounted on the .inside ofthe side members near the back of the bottom plate 7, as shown in Figs. 1 and 2. At the rear side plates are connected by a transverse member 10, and the whole is mounted on a series of supporting frames 11, provided with rollers 12 on which the side members 6 rest, vand with rollers 13 bearing the sides of said members to pre `mechanism will now be readily vent sidewise displacement of the charging frame. The latter can therefore be run into the furnace, and withdrawn, through the opening 5, at will. If desired, rollers 13a may be provided, arranged over the side plates and carried by one or more of the frames 11.

At the rear of the charging frame is a ram 14 of any convenient and suitable type, having the forward end of its plunger 15 secured to a cross plate 16 the ends of which are secured to the side plates 6, 6. Movable longitudinally through this cross plate 16 are two rods 17, secured at their forward ends to the follower 8 and connected at their rear ends to suitable counterweights 18, 18, by means of cables or ropes 19, 19 running over pulleys 20, 21, The function of the counterweights is to retract the rods and the follower, as will be readily understood, but this movement of'retraction relative to the pan is limited by two stops 422, 22,

understood. On the frame 11 nearest to the furnace is a member 25 (not shown in Fig.

y1) extending across and above the charging the side plates 6, 6, a short distance from the forward ends thereof.

From the foregoing the operation of th understood. The parts being in the positlon shown in Fig. 1 and shown in full lines in Fig. 2, the pan is filled with the material which is to be introdiiced into the furnace land is started. The entire charging frame is thereby advanced, the follower 8 being adA vanced also by the transverse membery 16 engaging thestops 22, and the stops 26'being cammed inwardly vby the members 28 out of the way of the latter. As the pan moves to the position shown in dotted lines in Fig. 2, inside the/furnace, the fingers or catches 23 engage the stops 26 and are thrown back .as they pass under the stops, after which the catches 'are restored to their initial positions by the weights 24. When `the dotted line position is reached the ram is reversed and the entire charging frame is retracted, 'but the follower, arriving at the stops 26, vis arrested by the fingers- 23 engagingthe stops. The pan, however, continues its rearward movement, thereby causing the material to be scraped off over the forward edge ofv the pan into the furnace across the entire width of the same, by the now stationary follower or scraper. Finally, ,the camming devices 28 engage the lugs 27 and throw the stops inwardly out of the path of the fingers 23, thereby releasing the scraper; whereupon the latter is immediately retracted while the rest of the charging frame is completing its rearward movement. The parts are thus restored to -their initial positions, ready for another charge. y

, It will be observed that the charging pan conforms in sizeand contour to the 'plan of the furnace, so that the materials which are to be burned can be placed on the pan in the positions which they are to occupy in the furnace. Then as the pan is withdrawn the materials pour over the forward edge and settle gently ,into these positions.

It is to be understood that the invention is not limited to the constructionl herein specifically shown and'described, but may be embodied in various forms without departure from its proper spirit and scope,

I claim:

l. In a furnacefeeding apparatus, in combination, an open receptacle, a follower movable therein, retracting rods connected with the follower, a ram connected with the receptacle to advance and retract the same,

a member rigidly connected with the recep-v tacle, stops mounted on said rods and arranged to be engaged by the said member in the forward movement of the receptacle whereby to advance the follower, means arranged to engage the follower and hold the same stationary in4 its advanced position, means connected with said rods to retract the follower, and means for releasing the follower from said holding means to permit retraction of the follower by the said retracting means.

2. In a furnace-feeding apparatus, in combination, a 'receptacle having rearwardly extending side members, a cross member secured to the side members inthe rear of the receptacle, means connected with said cross member to advance and retract the receptacle, a scraper'movably mounted in the receptacle, rods connected to the scraper and extending rearwardly pastthe said cross member, stops mounted on the rods in front of the cross member and adapted to be engaged thereby to advance the scraper with the receptacle, releasable means for holding the scraper stationary in itsadvanced position, and means connected with the said rods to retract the same and the scraper upon release of the said holding means. y f l 3. In a furnace-feeding apparatus, a 4receptacle, means for advancing and retracting the same, a scraper mounted in the receptaf and movable therewith inl the forward movement of the same, rearwardly swinging fingers connected with the scraper, transversely swinging stopsv in the pathr of said lingers, and means carried by the receptacle for swinging said stops out of the path of the fingers.

In testimony whereof I affix my signature

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