US398007A

US398007A - story

Info

Publication number: US398007A
Authority: US
Publication date: 1889-02-19
Anticipated expiration: 1906-02-19

Description

2 Sheets-Sheet 1.

(No Model.)

E. J. STORY. FIRE GRATB.

Patented Feb. 19, 1889.

@7&1

(No Model.) l 2 sheets-sheet 2..

E. J. STORY.

PIRE GRATE.

No. 898,997. s Patented Peb. 19, 1889.

UNTTE STATES PATENT Fries.

EPHRADI J. STORY, OF FASHINGTON, DISTRICT OF COLUMBIA.

FIRE-GRATE'..

SPECIFICATION forming part of Letters Patent No. 398,007', dated February 19, 1889. Application filed August 6, 1885. Serial No. 173,699. (No model.)

To all whom it may conventi Be it known that l, EPHRAIM J. STORY, a citizen of the United States, residingin Vashington, in the District of Columbia, have invented certain new and useful Improvements in Fire-Grates, of which the following is a description.

The invention relates particularly to a grate which is adapted to be applied to use in a lire-place or in a lire-place stove.

In the drawings, Figure l is a front elevation of my improved grate as applied in a replace, the covering-screen and drat`t-regulator being broken out. Fig. 2 is a horizontal sectional plan view on the line w w of Fig. l. Fig. 3 is a perspective view showing the grate-frame, the grate-sections being removed and the vertical front bars being broken away. Fig. 4 is a vertical transverse section trom front to rear on the line .r of Fig. 2. Fig. 5 is a vertical section, drawn to an enlarged scale, of a portion of the parts which are represented in Figs. 3 and 4:. Fig. 6 is a vertical section,drawn to an enlarged scale, on the line y y of Fig. 2. Fig. 7 is adetail perspective view, enlarged, of a portion of the grate-frame detached. Fig. 8 is a detail elevation of the front and rear grate-frames, showing a modiiication in the construction of the Securing arm or knee. Fig. 9 isa detail elevation showing the interior overhanging grateclearing projection upon the two sections of the grate-frame. Fig. l0 is a detail showing the central or intermediate longitudinal bar as cast separately and subsequently attached to the end bars.

' AThe invention consists in certain novel elements and combinations of elements, as will clearly appear from the following description and claims.

A is .the front section of the grate-frame, consisting. ofvertical end supports or standards, A2, whichterminate downwardly in legs d3, an upper jcurved horizontal connectingbar, Cefa coincident lower curved horizontal connecting-bar, a', downwardly-projecting guide-loops at and a6, pivoted and weighted stops a5 and al, lugs a8 as and ai a, bearings d10 and @16, and a series of vertical bars, a2, which latter, in connection with the connecting-bars aand a andthe standards A2, constitute the basket portion of the grate-front.

The rear section, B, of the grate-frame is composed of a rear longitudinal horizontal supporting-bar, t, which is provided, preferably at its mid-length, with a leg, b', and with end bottom supporting hooks or sockets, bl t7, transverse overlapping end bars, b2 and b3, each, preferably, oppositely inclined from its ends downward toward the center, as shown, and a central or intermediate longitudinal horizontal supporting-bar, b4, opposite to and parallel with the rear bar, Z), and which is provided with bottom operating-loops, b5 and h6, bottom hooks or sockets, 118 bs, front agitating-iingers, Z910, rear agitating-iingers, bl?, rear supporting-lugs,f2, and an upwardly-proj ecting longitudin al ridge, hl?.

At their front extremities the overlapping end bars, b2 and b3, are provided with upwardly-extending knees or arms Z113, in each of which is a perforation, blt, to receive a bolt, bk", which extends rearwardly through the end supports, A2, of the front section, and is secured by' a nut, bm.

The intermediate longitudinal supporting bar, b4, is preferably cast in one with the transverse overlying end bars, b2 and h3; but it may be cast separately and then attached by any suitable means, and the supporting hooks or sockets hl and 128, instead of being cast upon the bottom ot' this rear section of the gratetrame, may be formed separately and subsequently applied in the manner indicated in Fig. 7, or in any other suitable way.

The rear grate section, (l, and the front grate-section, D, rest by their bottom hooks, c and d, respectively, in the supporting hooks or sockets bl t7 and t8 lig, the vertical extent of the grate-sections and their hooks being slightly less than the space between the upper surface of the supporting hooks or sockets and the bottom surface of the transverse end bars, so that when the grate-sections are reciprocated their ends will extend beneath the end bars and be cleared thereby of any accumulations of coals, clinkers, or cinders. The grate-sections C and D are reeiprocated by means of the operating-rod E, which, being inserted within the loop a6, engages the loop b upon the central longitudinal bearing or supporting bar, and the depending lugs f4, f5, and f6 upon the section C and upon the section D, respectively. The pivoted stop a7 be- IOO ing in its locking position, as seen in full lines in Figs. l., 3, 4, and 5, the movement of the operating-rod will be insufficient to pass the cross-bars f or j' of the grate-sections beyond the vertical plane of their front supportinglugs, j" and f. XVhen it is desired to dump the front grate-section, the stop a7 will be lifted and the operating-rod will be moved to the left extremity of its slot, thus carrying the ends ot the cross-barsj beyond the edge of the supporting-lugs '/i and permitting the grate to fall. ly a similar operation of the operating-rod in connection with the loop CL4 the rear grate-section may be dumped in the same manner.

The air casing or screen G, detachable, as shown, has at its upper extremity an inwardly and downwardly inclined chute, G', and it is provided also with operating-openings g and g for the rod E, which are coincident, respectively, with the loops (t4 and a6 upon the front section, A, of the grate-frame, and are closable by means ot covering-plates g2 and g3.

Below the operating-openings g and g are openings g, in any desired number, for the admission of draft-air, and a slidable registerplate, r/i, is applied to iegulate such admission. Qrdinarily this air-casing and dustscreen G will be placed in close contact with the front of the grate, so that the draft may be effectually controlled; but when in the process of combustion ashes and cinders have accumulated upon the chute the casing will be withdrawn to such extent as to permit the accumulation to be discharged into the space below.

The provision of the outward bend or enlargement in the front supports, A?, of the grate-frame, formed, it is, in the plane of the front grate-section, affords space within the crate-frame and beneath the projections A for the reciprocation of the grate-sections without uncovering the ends thereof, so as to permit clinkers or other substances to become engaged between the section and the projection, the limit of movement being such, as clearly indicated in Figs. 2 and G, that a vertical opening is under no circumstances produced between these parts. This construction also affords space for the insertion and y withdrawal of an ash-pan of an area greater than the area ol' the grate-sections, so that no portion of the waste products of combustion will fall outside such ash-pan.

As best seen in Figs. :2, 3, G, and 9, the front section, A, of the grate-frame and its vertical supports A2 are provided with an overhanging projection, A3, which is coincident with the under surface o t' the transverse end bars, h2 and b3, and which in the reciprocation of the grate-sections C and D acts in conjunction with such end bars to clear the fuel-surface of the front grate-section, D, of refuse matter and of coals or other substances.

In Fig. 2, f4 and f5 are lugs which project from the bottom of the grate-section C, and

f are similar lugs upon the grate-section D.

These lugs are coincident with the loops upon the horizontal bars h4 and ct and with the operating-openings in the screen or air-casing G.

lt will be understood that in the practical use of this grate a suitable casin or firebasket may be placed upon the rear section thereof and attached to the front section, as indicated in dotted lines in Fig. -l, or that the rear section may be placed directly in contact with the masonry of the fire-place, so that the tire-back and jambs of the fire-place will constitute the rear and end walls of the firechamber.

Preferably the front vertical face of the arm or knee o is provided with a groove or recess, b", and the rear face of the vertical standards A2 is provided with a corresponding tongue, insuring a secure connection of the front and rear sections of the grate-frame.

It is apparent that instead of the arm or knee Z913 extending upwardly from the parts h2 and h3 of the grate-frame an arm, a, might extend rearwardly from the standards A2, as seen in Fig. S, along the upper surface of the frame, and be secured to the same by vertically-placed bolts bw; but I prefer the construction tirst described.

The upper surface ot' the central or intermediate longitudinal supporting-bar, D, is in Figs, 2 and t represented as substantially in the same horizontal plane as the adjacent grate-sections; but it is apparent that the character of the invention would not be changed, while the strength of the bar would be greatly increased, if it were made to extend upwardly somewhat farther, and in some cases it may, as seen in Fig. l0, terminate upwardly at the top instead of at thebottom of the transverse end bars.

In Figs. l and 2, A31 designates the fat-ings or pilasters of the {ire-place front I` do not herein broadly claim a grate which is composed of a front section and a rear section which are secured together, nor an aircasing or dust-screen which is provided with registered draft-openings and is applied to the front of a tire-place grate, for I am aware that these constructions are old.

I do not herein broadly claim two gratesections which are each pivoted at the rear, so as to discharge their contents toward the front; nor a central or intermediate longitudinal bearing-bar which is provided with a perforation for the reception of an operating-rod; nor grate-sections which are provided with depending engaging-lugs and with downwardly-projecting hooks; nor two forwardlydischarging grate-sections which in the operation of dumping are actuated successively through different operatiiig-openings; nor a grate the ends oi' which are ovcrhung by a projection which in the operation of the grate clears the ends of coals, ashes, and clinkers,

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such constructions being shown and described in United States Patent No. 346,830, issued to me August 3, 1886.

Having described my invention, I claim l. The combination, in a grate, of a rear longitudinal supporting-bar, a longitudinal supporting-bar opposite to and parallel with the rear longitudinal supporting-bar, transverse end bars which overlap such longitudinal supporting-bars and are rigidly connected thereto, and a grate-section which at its ends is overlapped by the transverse end bars.

The combination of the rear longitudinal supporting-bar, b, the central longitudinal supporting-bar, h4, the end bars, b2 and b3, eX- tending across and rigidly connected to the upper surface of the longitudinal bars, anda grate-section, C, the upper surface of which at its ends is overhung by the end bars, substantially as and for the purposes set forth. 3. A grate-frame which consists of a front longitudinal bar, a rear longitudinal bar, an intermediate longitudinal bar, and end bars which extend across such rear and intermediate longitudinal bars, in combination lwith grate-sections which are supported by bottom projections upon the rear and intermediate longitudinal bars and by rear projections upon the front and intermediate longitudinal y bars, whereby when the grate-sections are reciprocated coals, clinkers, and ashes are cleared from the sections at their ends.

4. The combination of the grate-frame elnbracing bar c', having a support, f3, bar b, having support l, bar b4, having supports L8 and bs, and end bars,b2 and h3, with the gratesections C and D, provided, respectively, with the bottom hooks, c and d, for the purposes specified.

5. A rearlongitudinal supporting-bar, transverse end bars which rest upon and are rigidly connected to the rear longitudinal supporting bar, a longitudinal supporting bar which at each end is connected to the under surface of the transverse end bars, hooks or 1 sockets which project from the undersurface of the longitudinal supporting-bars, and a grate-section having engaging-hooks, in combination, substantially as described.

6. A [ire-place grate the frame of which embraces'a longitudinal. supporting-bar, b, transverse end bars, h2 and b3, which rest upon and are rigidly connected to the longitudinal supporting-bar, a longitudinal supporting-bar, b4, which at each end is connected to the under surface of the transverse end bars, b2 and h3, and downwardly and upwardly turned hooks or sockets bl hf, which project from the under surface of the longitudinal support-ingbars b and b4, as and for the purposes set forth.

7. A front grate-section which consists of end vertical standards the lower portions of which are curved outwardly, as described, an upper curved horizontal connecting-bar, and a series of vertical bars which extend from the -upper horizontal connecting-bar to the lower horizontal connecting-bar, in combination with a rear grate-frame which embraces two lower longitudinal supporting-bars and two upper transverse bars, the rear longitudinal supporting-bar having a single bottom support placed at about its mid-length, as described.

8. The front grate frame or section, A, which consists of the standards A2, curved outwardly, as shown, the upper connecting-bar, a, the lower connecting-bar, a', and the series of vertical bars a2, in combination with the rear grate-frame, B, which embraces the two longitudinal supporting-bars b and b4, the transverse superposed bars h2 and b3, and the single bottom support, b', upon the longitudinal supporting-bar b, substantially as set forth.

9. -The combination of a' front grate-frame and grate-section embracing a vertical basket portion and vertical outwardly-bent end standards, and a rear horizontal grate-frame, the front vertical grate-frame and grate-section and the rear horizontal grate-frame being secured together, substantially as described.

10. The combination, with the rear horizontal grate-frame and grate-section, of the front vertical grate-frame or basket-section provided with the left and right operating-loops, CL4 and a, substantially as and for the purposes set forth.

1l. A fire-place grate which embraces a rear horizontal grate-frame and grate-section and a front vertical grate-frame or basket-section which is provided with the right operatingloop, a, and with left operating-loop, aigwhereby the grate-section upon such rear horizontal grate-frame may be dumped, as described.

12. In a fire-place grate, a front vertical grate-frame or basket-section, A, which is provided with left and right operating-loops, d4 and a, as and for the purposes described.

13. The combinat-ion of the front section,A, having vertical portions a?, longitudinal portions a and a', and operating-loops a4 and c, with the rearsectiomB, having grate-supporting hooks and connected to the frontsection, substantially as described.

14. The front section, A, having vertical bars a2, longitudinal bars a and a', and loops a4 and d6, in combination with the rear frame, B, and with the rear and 'front grate-sections, C and D, substantially as and for the purposes spcciiied.

15. A tire-place grate which embraces a front section, A, which has vertical portions c?, longitudinal portions aand a', and operatingloops a4 and a", a rear grate-supporting frame, B, and rear and front grate-sections, C and D, which are provided with engaging-lugs.

16. The combination, with the front frame and section, A, having the loops a4 and a6, of the pivoted locking-stops a5 and c7, whereby the limit of movement of the operating-lever may be either enlarged or restricted at the will of the operator, substantially as and for the purposes specified.

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1T. The combination, with the front section, A, of the grate-frame, of the outwardly-bent supports or standards A?, located it the eX- trelnities ol the grate, described, an d curved beyond the plaines of' such extremities, whereby spnie is :iiiorded in nself-supportinggrate for the insertion :ind removal of" nin nshpnn which hns grenier width than the grate.

1S. The front A, hniving conn-ceti]ig-bnr u', provided with loops u" o, the casing (i, halving` openings g und g', :ind the grate having bottoni lugs, in combination, :is set forth.

li). The conibinmiion, with n lire-pince grate, ol n detachable :tir-casing, G, provided with un :ish receiving and discharging chute, G', :ind resting upon the hearth or floor, subsi :1ntiallv :is shown and set forth.

20. The combination, with n fire-place gratte, of n detachable air-casing, G, having at the top a chute, G',t'or receiving and discharging ashes, and having also zt series oi' .registered openings, g4, for the admission of draft-air.

2l. The combination, with a fire-place grate, of the detachable nireasing or dustscreen G, provided with ash-chute G', operating-openings g and g, and registered draft-openings g, substantially ns sind for the purposes specilied.

The' combination, with the front sec tion, A, having connecting-bnr a and loops a* md CLG, of the dust-screen or nir-casing G, having operating-openings g and g', provided with closing-plates gl and g3 and correspond ing with the loops u" und a, substantially as set forth.

23. The combination, with the gratte con sisting oi' the self-supporting frzunesections and the front und rear grate-sections, of the detachable air-easing G, having openings g, g', and g", and closingplates g2, g3, und g, i

substantially and for the purposes specined.

24. The combination, in a. fire-place grate, of L front Vertical grate-frame and t rear horizonhl grate-'frame which is fitted to the front grnitedirmne, :in nrin or knee upon one oi the ginie-frames extending along the other grate-freine, :uid n securing-bolt extending through one ot' the g nte-frames sind through the firm or knee upon. the otherI grate-frame.

rlhe combination of the 'front grate- Vtraine and basket-section, A, the rear grate- .i'rmne, B, having upwnrdly-extending arm or knee il, :uid the securing-bolt bm.

2o. The combination, with the gratte, of the grate-'iframe having the outward bend in the plane ol the grate und the inward projection extending over the ends of the gra-te,substan tially as shown and described, sind for the purposes set forth.

27. The combination,with the grate, of the rear grate-frame having end bars, b3, overhztnging the rear grzttesection and :t portion oi.' the. front grate-section, and the front grate- 'frmne having project-ion A, overhnnging a portion of the front grate-section, substantially es and `for the. purposes specified.

2S. The front gra-tefraine having the outxvnrd bend and theinwstrd projection, in conibinntion with the rear gratte-frame having overhanging end bars in continuation of the inward projection upon the front grate-frame, the rear gratesection supported upon the rear grate-traine, :1nd the front grate-seetion supported in part upon the rear and in part upon the front grate-freine.

EPHTtAIM J. STORY.

Witnesses:

G. S. LYLEs, J. A. HARVEY.