US849914A - Grate. - Google Patents

Description

- PATENTED APR. 9, 1901,

w. MOGLAVB. v

GRATE.

urmoulon FILED snr'r.e,1a06.

2 anus-sum" 1.

110,849,914. BATENTBD APR. 9, 1901.

W.M0QLAVE.

GRATE.

APPLICATION 211.31) SEPT. 8,1906.

2 SHEETS-SHEET 2- UNITED STATES PATENT OFFICE,

WILLIAM McOLAVE, OF SORANTON, PENNSYLVANIA, ASSIGN OR TO MOCLAVE- BROOKS COMPANY, OF SORAN TON PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

GRATE.

Specification of Letters Patent.

Patented April 9, 1907.

Application filed September 6, 1906. Serial ll'ox 333.485.

To @671 whom it may concern.-

Be it known that I, WILLIAM MoOLAVE, a citizen of the United States, residing at Scranton, in the county of Lackawanna and v State of Pennsylvania, have invented certain new and useful Improvements in Grates; and I do hereby declare the following to be a full, clear, and tion, such as art to which it appertains to make and use the same. v

This invention relates to improvements in grates, and more particularly, to the j ournalbearing bars thereof.

The object in view is the provision of I means for facilitating the ready positioning of the journal of a grate-bar in the bearing of the journal-bearing bar and the effectual retentionthereof without the employment of wedges or other auxiliary locking devices.

With these and other objects in view the invention comprises certain novel constructions, combinations, and arrangements of parts, as Will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a longitudinal vertical section through a furnace structure, the grate-bars being omitted and a journal-bearing bar bein illustrated in elevation. Fig. 2 is a view 0 a fragment of the j ournal-bearing bar seen in elevation. Fig. 3 is a similar view of the same with the sectional journal-caps removed. Fig. 4 is a top plan view of a fragment of the bar. Fig. 5 is an inverted plan view of the sectional cap.

In carrying out the invention the journalbar 1 is formed with as many j ournal-bearings 2 as are required for accommodating the journal ends of the grate-bars, and the journal-bearing bar is formed with an opening 3, leading through the upper edge of the bar of each bearing 2, so that the journal of the grate-bar may be dropped readily into the bearing. It is of course desirable to prevent vertical play of the bar, and to accomplish this result I propose to employ asectional locking-cap, which may be readily positioned for closing the o ening 3 and may as readily be removed, i desired. Furthermore, this invention contemplates the production of a cap which does not necessitate the use of key-plugs or wedges at any time, each cap for each journal-bearing consisting simply of the two sections 4 and 5. The

exact description of the inven will enable others skilled'in the I low the termination journal-bearing bar 1 at each side of each opening 3 is formed with inclined recesses 6 6, leaving a central web 7, and each of the sections 4 and 5 is bifurcated, so as to fit snugly over the respective web 7 and be held thereby against lateral play. The section 5 is formed with an overhanging which is preferably curved to con curvature of the journal, and the upper end of the section 5 'is beveled off in such manner that the upper end of the section 4 overhangs the beveled portion of the section 5 and sungly contacts therewith, so that the section 5 cannot be moved upwardly whenin position without also moving wardly. The recesses 6 are arranged approximately at right angles, and the incline of said. recesses of course results in the lower ends of the recesses being farther apart than the upper ends, and hence the lower bifurcated ends of the sections 4 and 5' are spread apart, while the upper end of the section 4 overlaps the section 5, and therefore any pressure exerted on the overhanging portion 5 of section 5 will tend to draw both sections 4 and 5 upwardly, which operation is impossible in view of the'fact that the lower ends of the sections are farther apart than the width of the opening 2 at its upper end. In other words, the overhanging walls produced by the recesses 6, against which the outer edges of the bifurcated sections 4 and 5 contact, prevent vertical movement of the said sections 4 and 5, the only movement which is permitted being the movement longitudinal with respect to the particular section, and as section 4 overlaps section 5 section 5 cannot be removed until section 4 has been removed, and this later operation cannot be accomplished by any pressure exerted by the journal against the overhanging portion 5. It is thus to be observed that the sectional caps not only form a closure for the j ournalhearing, but form an effectual lock for preventing the journal from lifting, and the looking action is accomplished without the aid of any auxiliary devices.

By preference the lower end of each of the recesses 6is beveled outwardly, as at 8, be-

of the bifurcated end of the respective sections 4 and 5. This facilitates the introduction of a tool beneath the respective section for driving the section upwardly should the same become firmly fixed orm to the ortion 5, I

- at the sides of the opening,

bearing, and an opening extending from said 1 cap for the journal and a wedge for locking same in place. As I employ no wedge in connection with my journal-cap, but instead employ simply a sectional cap, I contemlate forming a notch or mesh 9 in the journal-bearing bar between each two of the jour nals 2, so that the upper edge of the journalbearing bar may expand freely longitudinally in spite of the fact that the sectional cap fits snugly in place. At the lower end of the notch 9 by preference the material of the journal-bearing bar is beveled in opposite directions from the central point, so that ashes or other foreign material falling into the notch 9 will be directed to one side.

I claim- 1. In a grate structure, the combination with a journal-bearing bar formed with a bearing and an opening leading therefrom to the upper edge of the'bar, the bar being formed with a recess at each side of the opening inclined toward the opening, and a sectional cap forclosing said opening, the sections of the cap engaging the said recesses and extending across the opening.

2. In a grate structure, the combination with a journal-bearing bar formed with a bearing and an opening leading therefrom to that portion of the bar designed to be subjected to the greatest amount of heat, recesses being formed in the material of the bar said recesses be ing inclined and extending toward the outer portion of the opening, a grate-bar formed with a journal engaging the bearing of said journal-bearing bar, and a sectional cap having its sections engaging the said recesses and extending into said opening to retain the journal in its operative position.

3. In a grate structure, the combination with a journal-bearing bar formed with a bearing and an opening extending therefrom to the edge of the bar, the material of the bar at the sides of the opening being recessed and l the recesses having their longitudinal axes l disposed in planes converging in a direction toward the edge of the bar, a grate-bar formed with a journal engaging said bearing, and a sectional cap having its sections engaging the said recesses and extending beyond the same into said opening for retaining the journal in its operative position.

4. In a grate structure, the combination with a journal-bearing bar having a journalwith a journal-bearing bearing to the edge of the bar, of a sectional cap for closing said opening, the sections of the cap being arranged to extend in inclined planes and one of the sections to overlap the other.

5. In a grate structure, the combination with a journal-bearing bar having a journalbearing, and an opening extending therefrom to the edge of the bar and formed with recesses on both sides of said opening, of a sectional cap formed of overlapping sections adapted to be locked in position by engagement with said recesses.

6., In a grate structure, the combination with a journal-bearing bar formed with a bearing, and an opening extending therefrom to the edge of the bar, of 'a sectional cap for closing said opening, one of the sections of the cap engaging a portion of the bar for being retained in position and the other section of the cap engaging the first-mentioned section of the cap and also engaging a portion of the bar for being retained in position.

7. In a grate structure, the combination and an opening extending therefrom to the edge of the bar, and inclined recesses arranged at the sides of the opening, of a sectional cap formed with overlapping sections engaging said inclined recesses.

8. In a grate structure, the combination with a j ournal-bearing bar, having a journalbearing and an opening extending therefrom to the edge of the bar, of a sectional cap for closing said opening, one of said sections overlapping the other, and means formed integral with the bar and coacting with the overlapping section for locking the cap in position.

9. In a grate structure, the combination with a journal-bearing bar having a bearing, and an opening leading therefrom to the edge of the bar, of a sectional cap for closing said opening, one section of the cap overlapping the other and the sections of the cap bearing angular relation with respect to each other, and means formed integral with the bar for preventing simultaneous removal of the sections of the cap.

10. In a grate structure, the combination with a journal-bearing bar having a journalbearing, and an opening leading therefrom to the edge of the bar, said bar being formed with undercut portions contiguous to said bearing, of a sectional cap for closing the opening, one of the sections of said cap engaging one of the undercut portions, and the other section of the cap overlapping the first section of the cap and engaging the other undercut portion.

11. In a grate structure, the combination bar having a journalbearing, and an opening leading therefrom to the edge of the bar, the said bar being formed with undercut portions contiguous to the journal-bearing, of a sectional cap for closing the said opening, one section of said cap engaging one of the undercut portions and having an overhanging portion above the journal-bearing, and the other section of the cap engaging the other undercut portion and extending above the overhanging portion of the first-mentioned section.

12. In a grate structure, the combination with a journal-bearingbar having a journalbearing and formed with an opening leading from said bearing to the edge of the bar, the said bar being provided with an inclined recess in each face at each side of the bearing leaving an intermediate web, of a sectional cap for closing said opening, the sections of said cap being bifurcated and positioned for inclosing the respective Webs one of the sections of the cap overlapping the other.

13. In a grate structure, the combination I I l l l I with a journal-bearing bar having a journalbearing and formed with an opening leading from said bearing to the edge of the bar, the said bar being. provided with an inclined recess in each face at each side of the bearing leaving an intermediate web, of a sectional cap for closing said opening, each section of said cap being bifurcated and positioned for inclosing the respective web, the recesses being beveled off below the bifurcated ends of the sections of the cap for exposin said ends for facilitating the application of a re- 1noving-tool.

In testimony WhereofI afliX my signature in presence of two Witnesses.

WILLIAM MOOLAVE.

I/Vitnesses:

W. W. BURLEW, EDGAR M. KITCHIN.

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