US718604A - Stove-grate. - Google Patents

Description

No. 'i1-8,604. PATBNTED JAN. 2o; 1903.

A. B. GLUNIBS.. y

STOVE GRATB.

APPLICATION FILEDAUG. 15, 1960. H0 MODEL'.

Q, r Q` TINTTBD STATES PATENT OFFICE.

ARTHUR B. CLUNIES, OF ROCHESTER, NEV YORK, ASSIGNOR TO THE SILL STOVE WORKS, OE ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

STOVE- SPECIFICATION forming part of Letters 'Patent No. 718,604, dated January 20, 1903.

Application iiled August l5, 1900. Serial No. 26,956. (No model.)

To @ZZ whom it may concern:

Be it known that I, ARTHUR B. CLUNIEs, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Stove-Crates; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked thereon.

My present invention has for its object to provide an improved grate for stoves or ranges embodying generally a grate-frame which is revoluble in a horizontal plane and carrying parallel grate bars or members journaled thereon and adapted to be revolved in opposite directions to cut out or remove the f ashes and clinkers from the center of the fire.

My invention further consists inhcertain means embodying a shaker in combination with the stove-frame, whereby the said grate bars or members' can only be operated in the right direction and that but once upon a single application of the shaking device.

To these and other ends my invention consists in certain improvements in construction and combinations or" parts, all as will be hereinafter described, the novel features being pointed out in the claims at the end of this specication.

In' the drawings, Figure 1 is a top plan ViewA of a stove-grate constructed in accordance with my invention; Fig. 2, a longitudinal sectional view on the line 2 2 of Fig. 1; Fig. 3, a cross-sectional view on the line 3 3 of Fig. l; Fig.' 4, a side elevation of the shakingdoor of the stove, and Fig. 5 a plan view of the shaking-handle.

Similar reference-numerals indicate similar parts.

Crates constructed in accordance with my invention may be designed to fit any stove, and in illustrating the device I have only shown such parts of a stove as are essential to its operation-namely, the ash-pit section 1, upon which the grate is supported, and a portion 2 of one side of the stove, having the aperture 3, through which the grate is operated.

The grate embodies the ring 4, upon which are journaled the transversely-extending rotary grate members 5, reversely curved or ogee-shaped in cross-section and having the trunnions 6, lying in open bearings 7, located upon opposite sides of the ring and prevented from removal therefrom by collars 8 upon said trunnions engaging beneath the overhanging edges of the lugs 9. These grate members are connected for operation in opposite direct-ions by gears 10, and one of the trunnions is provided with an angular extension 11, adapted to receive the operating handle, whereby the grate members maybe revolved toward each other at the center to remove the ashes or dead coals from the center of the fire. The ring 4 is supported upon a frame 12, which in turn is secured upon or attached to the ash-pit section 1. Suitable lugs or projections 13 are arranged upon the sides and ends of the frame 12 and 'extending inwardly engage beneath a iiange or rib 14, formed upon the lower side of the said ring 4, permitting the latter to be oscillated to shake the tire, suitable stops 15 (shown in dotted lines in Fig. 1) being adapted to engage alternately with two of the lugs 13 to limit the horizontal rotary movement of the grate. In order to center the grate and hold it in position on the frame, I provide notches or steps on the lugs 13, forming shoulders 50, engaging the outer edge of the rib 14.

The aperture 3 in the side 2 of the stove is arranged opposite the grate members 5 and is of suflicient length to allow the application of the shaking-handle and its movement horizontallyto oscillate the grate, and its upper and lower edges constitute stops 16 and 1'7, the former being arranged inwardly and out of line with the latter and adapted to coperate with the shaking device to control the operation of the grate members 5, as will be described. The members 5 when in normal position lie in a substantially horizontal plane, as shown, and when it is necessary to clear the fire they should be given but one-halfY of a revolution toward each other. To limit this movement and prevent an unskilled or careless operator from rotating the sections more than a half-turn at one operation, I providey IOO volved in one direction and for one-half a revolution.

The shaking device embodies a handle 20, having the head or engaging end 21, provided with an angular aperture adapted to fit the extension 11. Upon the upper side of this head are arranged the offset ngers 22 and 23, extending in opposite directions and having their upper faces lying in substantially the same plane, so that as the handle is applied to the extension at the end of the trunnions the finger 23 will lie below the stop 16, requiring the handle to be moved upwardly in the direction of the arrow, Fig. et, reversing the position of the iingers and bringing the finger 22 into engagement with the face of the stop 17, permitting the grate 5 to be revolved one-half of a revolution, a further movement of the grates in the same direction being impossible without removing the handle and attaching it, as before described. By forming the fingers 22 and 23 with their faces lying in the same plane the latter or inner finger resting against the stop 1G prevents an accidental turning of the grates while being oscillated and when it is rotated and will prevent the removal of the handle until the former finger engages the stop 17, bringing the grates into a horizontal position, thus insuring a completion of the operation and preventing the grates from being left open.

25 indicates a door or cover normally closing the aperture 3 when the operating-handle is removed.

By the employment of the two surfaces or stops 16 and 17 out of line and providing the handle with the two fingers or projections, also out of line, I am enabled to make the aperture 3 for the entrance of the handle comparatively small, so that dust and ashes are not liable to escape into the room when the grate is oscillated or dumped. The employment of two fingers projecting from opposite sides of the handle also provides a sliding bearing on the body to the right of the central axis of the handle, whether the Operator shakes the oscillatory grate before or after operating the revoluble grate members. In one instance the lug 23 engages the stop 16, as shown in Fig. i; but if the grate members are rot-ated the lug 22 will engage the stop 17 during the subsequent shaking operation, and as the operator usually employs the right hand for shaking the grate and the normal tendency being to bear down upon the operating-handle the tendency to tip the oscillatory grate is prevented whether said handle is turned to one side or the other. The use also of two rotary grate-sections movable toward each other to cut out the ashes is desirable in a grate that is capable of oscillation for shaking, as when the sections are rotated they will to a certain extent counterbalance each other and the grate-support will remain stationary, so that the cutting or dumping may be quickly accomplished without permitting a large quantity of the contents to be deposited in the ash-pit.

In Fig. 2 I have shown a cover-ring 30 arranged above the outer edge of the grate-ring 4 and having upon one side an extension 31, covering the operating-gears 10, and upon its opposite sides is provided a segmental rib 32, arranged above the outer ends of the trunnions to prevent the grate from being tilted during the shaking operation.

Grates such as I have described may be adapted for application to stoves of various sizes and designs without departing from the spirit of my invention and being simple and consisting of but few parts they may be easily and cheaply produced.

By employing the separate grate members and by providing apertures in the central portion and the lingers on their proximate edges, as shown, I am enabled to provide a grate that is light in construction and adapted to allow a free draft to the tire, serving also to keep the grate cool and prevent burning and warping.

l claim as my invention- 1. In a stove-grate, the combination with a frame having projections thereon, an oscillatory grate-section supported upon the projections, and stops upon said grate adapted to coperate with the projections to limit its movement, of the two reversible grate members journaled upon the said grate-section each having similar oppositely-arranged fuelsupporting surfaces, connections between the grate members for causing their operation in opposite directions, and means detachably connected to one of said members for rotating them upon their bearings and oscillating the movable section upon its supports.

2. In a stove-grate, the combination with a frame having the projections thereon, an oscillatory grate having the rib upon its lower side engaging the projections, of the separate grate members having the trunnions at their ends journaled in the said grate-section and each having similar oppositely-arranged fuelsupporting surfaces, operating connections between the grate members whereby they are caused to operate simultaneously in opposite directions, and means engaging one of the trunnions for operating said members and oscillating the grate upon its support.

3. In a stove-grate, the combination with a frame having the aperture, the inwardly-extending lugs or projections provided with the steps or notches, an oscillatory grate-section having the rib upon its lower side resting in the steps or notches on the said projections to center the grate-section on the frame, of the separate grate members having the trunnions at their ends journaled in the said gratesection and each having similar oppositelyarranged fuel-supporting surfaces, gears connecting the members for simultaneous operation, and means detachably connected to one of the trunnions for operating the Said IOO IIO

members in their bearings and oscillating the grate upon its support.

4. In a stove-grate, the combination with a frame having the aperture, the inwardly-extending projections having the steps forming shoulders, and the grate-section provided with the rib upon its lower side engaging the steps and held centrally upon the frame by the shoulders on the projections, of the separate grate members having the trunnions and each having the oppositely-arranged fuelsupporting surfaces, bearings for the latter arranged upon the grate-section and having the overhanging edges, the collars upon the trunnions engaging said edges to secure the grate members in their bearings, and an operating-handle engaging one of the grate members, whereby the latter may be revolved or the grate oscillated upon its support.

5. In a stove-grate, the combination with a frame, an oscillating grate supported thereon, separate revoluble grate members carried upon said grate-section each having oppositely-arranged fuel-supporting surfaces, of an operating handle, engaging one of the revolublecgrate members, having projections thereon, and stationary stops adapted to cooperate with said projections whereby the grate may be oscillated in a horizontal plane and the rotary movement lof the revoluble members limited.

6. In a stove-grate, the combination with a frame, an oscillatory grate supported thereon and separate revoluble grate members carried on the said grate each having similar oppositely-arranged fuel-supporting surfaces, of an operating-handle engaging one of the revoluble grate members, and having oset projections thereon, and stationary stops odset relatively to each other and adapted to engage alternately with the projections to limit the rotary movement of the members.

'7. In a grate, the combination With a grateframe and a revoluble grate member thereon having similar oppositely-arranged fuel-supporting surfaces, of an operating-handle connected to the grate, a projection thereon, and a stop engaging the latter permitting its movement in but one direction, a projection on the handle arranged out of line with the other projection, and a stationary stop offset from the rst-mentioned stop adapted to coperate with the second projection to arrest the rotary movement of the grate.

8. In a stove-grate, the combination with a frame, separate revoluble grate members mounted thereon each having opposite fuelsupporting surfaces, and intermeshing gears arranged between them for causing their simultaneous operation in `opposite directions, of an operating-handle detachably connected to one of the grate members, and having the offset projections upon one side, a stationary stop adapted to engage one of said projections to permit the operation of the handle in one direction only, and a second stationary stop adapted to engage the other projection to limit the rotary movement of the grate.

' 9. The combination with a support, a circular oscillatory grate mounted thereon, two rotatable dumping-sections journaled in the oscillatory grate each having opposite fuelsupporting surfaces connected for simultane- 1 ous operation in opposite directions, one of said sections having the irregular-shaped eX- tension, of a removable operating-handle adapted to engage said extension and having the two oifset stops thereon, and two stationary ofset stops with which the ones on the handle are adapted to engage.

10. The combination with a support, a circular oscillatory grate mounted thereon, two rotatable dumping-sections journaled in the grate each having opposite fuel-supporting surfaces and connected for simultaneous operation in opposite directions, of a removable operating-handle adapted to engage one of the rotatable sections having a projection thereon, and a stationary iiange or stop with which said projection engages, whereby the grate may be oscillated in a horizontal plane by the handle and the rotatable sections operated in but one direction.

ll. The combination with a support, a circular oscillatory grate thereon, a rotatable grate-section mounted on the oscillatory grate having similar oppositely-arranged fuel-supporting surfaces, of aremovable handle adapted to be applied to the rotatable section, having a stop thereon, and a stationary stop or flange with which the stop on the handle engages to prevent the rotation of the handle in one direction and with which the stop may be held in contact during the oscillation of the grate by means of the handle.

ARTHUR B. CLUNIES.

Witnesses:

G. WILLARD RICH, Gr. A. RODA.

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