US1580330A

US1580330A - Furnace grate

Info

Publication number: US1580330A
Application number: US42558A
Authority: US
Inventors: Rezsny Koloman
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-07-09
Filing date: 1925-07-09
Publication date: 1926-04-13
Anticipated expiration: 1943-04-13

Description

A ril 13,1926; 1,580,330

, K. REZSNY FURNACE GRATE Filed July 9. 1925 K Rezsn INVEWI'UR Patented Apr. 13 1926.

UNITED i STATES PATENrr- F we g mma aEzsNY, or BUDAPEST, HUNGAR FURNACE GBATE.

Tom w hom it may concern:

Be it known that I, a citizen of Hungary, and residing at Budapest, 11, Hungary, have invented certain new and useful Improvements in and Relating to Furnace Grates, of specification.

This invention relatesto furnace" grates for fire boxes or fiues of locomotive-boilers of the kind in which stationary side portions are used in combination with a tiltable portion, the centre of gravity of which latter portion is eccentric with respect 'to its axis of rotation, and in whichno mechanical gear is required fortlpping thesaid movable part of the grate into the open position for the removal of the clinkerand then again into its closed position the usual fire'hook being sutficient for this purpose;

Furnace gratesofthe kind above referred to as hitherto constructed (see for instance Rezsnys Patent 1503767) have various drawbacks. Thus, the fire-bars are liable to break when striking against the stationary support or abutment during a violent closure; when use is made of coal containing tar the movable and stationary parts may cake together at the supporting points and thereby render the upward tilting of the tiltable portion of the grate more diliicultv and even prevent it altogether; the opened portions of the grate rest against the stationary parts thereof at an acute angle whereby a dead space is produced; the lifting of the arm of the tiltable portion is rendered diflicult by the weight of the clinker when the quantity of the residues is very large; the tilted arm projects into the fire box and interferes with the manipulation of the fire, etc.

The object of the present invention is to provide a construction in which these drawbacks are avoided.

The main feature of the invention consists in this that the weight of the tiltable portion or portions of the grate is so distributed with respect to the axis of rotation that for the opening operation a small movement wil suflice to cause the centre of gravity to shift from the one to the other side of the axis of rotation and automatically complete the opening.

Another feature of the inventionconsists in this that'the axis of rotation of the tilt: able portion of the grate is arranged to lie below the centre of gravity of the same.

The invention also-consists in limiting the Application filed July 9, 1925.

KoLo vrAN REzsNr,

which the following is a H long are.

' Referring to Figs. which illustrate in plan; view respectivelyfa'grate with two tiltable portions, 1 is a stationary part of Serial No. 42,558.

grate when'opemby' a rod, such'a rod being preferably used position of the said grate when closed.

still further feature of theinvention end position of the tiltable portion of the also for limiting the end consists. in constructing the tiltable portion of'the grate'preferably in the form or. an

are so that during the opening operationthe same essentially performs a sliding move.

ment with respect .to

The invention also those'inside surfacesof the stationary grate which face the tiltable portion of the grate in the direction of movement of the same, in

the clinker above it.

"such a manner as to allow the tiltable portion consists in tapering freely to be moved along a comparatively land 2 of the drawings sectional elevation and the grate which stationary part is constructed in the form of ordinary flat fire bars resting on the usualsupporting bars of the grate.

7 is the shaft of the tiltable portion 6 of the.

The bearings for the tiltable por- 8 serving as an abutment or the greater weight of one of its with the fire hook on one arm 1 the same until the centre of gravity has been shifted from the right hand side to the left hand side of the tiltable portion 6 shown on the drawing, the tiltable portion then automatically continuing its movement into the open position in which it is fixed by the rod or' pin 8 which now abuts against the right 1 hand side of the slot 9. When the tiltable ortion is in this position it is 0 en onboth sides relatively to the rotary sha 7 to allow the clinker to be removed. The tiltable portion remains in this open position until it is returned into its closed position by striking against the upper arm of the tiltable portion after the removal of the clinker.-

During the opening operation the tiltable portion of the grate essentially performs a sliding movement with respect to the clinker above it. This arrangement has the further advantage that when the Weight of the clinker above it is rather great the resistance encountered by the shifting action exerted upon the tiltable portion of the grate is not so large as the said tiltable portion only performs a sliding movement with respect to the clinker. The two end positions of each of the two @ti-ltable portions of the grate are determined hythepinsS engag ng in the slot-s :9 pronided iin ti1B g1 21Jt'B. it is however, to Joe understood that the .tiltable portions-0t the grate may bestopped in their end positions :by bolts ior pins 10 provided on the stationary 1 art @of the grate ,1.

.T-he ainside sartaces of the stationary part of the grate which .it'aee the .ti ltahle portions of the grate in :the direction (of the movement of the latter are tapered in such va manner as to allow the grate freely to :he moved along .a oomparatitel y long are.

What .1 {claim is 1. A fnmace grate ifor fire boxes or fines of .looomotive boilers comprising in combination with a stationary part a portion capable of Joeinggvtilted, the centre of gravity of which is eccentric with respect {to its axis of notation and the Weightof which is so {distri huted with :respect to the axis of rotation that for the opening operation a small movement willsufliceto cause-{the centre of gravity to shift from the one to the other side of the axis of rotation and automatically complete the opening.

2. A furnace grate as claimed in claim 1 and in which the axis of rotation of the tilt .ahle portions of the grate lies below the centre of gravity of the latter.

3. A furnace grate as claimed inclaim 1, having a rod for limiting the end position of the ztiltalole portion of the grate when .open.

.4. A 'tnrnace grate as claimed in claim 1, .and having .a ,rod forxlimiting the end position of the tilta-lole portion of the grate when iopenediand also its end position whenielosed.

5. A iturnacegrate as claimed in claim .1, and in which the tiltalole portionof the grate .is constructed in the form of an arc and the ,insidesurtaces of the .stationarypart of the grate which ,faoe the tiltable portions of the grate .are tapered so that during the opening operation .the :said portion of the grate essentiallyperiormsa sliding movement with respect to the clinker aho-ve it.

.In testimony whereof 'I have signed my name to this specification.

KOLOMAN REZSNY.