US1328686A - Support for furnace-pokers, &c. - Google Patents

Description

J. PAVLIK.

SUPPORT FOR FURNACE POKERS, &c

APPLICATION FILED JULY 29,1919.

Patented Jan. 20, 1920.

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JOSEPH PAVLIK, OF NEW YORK, N. Y.

SUPPORT FOR FURNACE-POKERS, &o.

Specification of Letters Patent.

Patented Jan. 20, 1920.

Application filed July 29, 1919. Serial No. 314,040.

To all whom it may concern:

Be it known that I, JOSEPH PAVLIK, a citizen of the United States, residing in Astoria, Long Island, in the county of Queens, city and State of New York, have invented certain new and useful Improvements in Supports for Furnace-Pokers, &c., of which the following is a specification.

This invention relates to rests for pokers and other tools used in trimming the fires of boilers, furnaces, etc. Such rest or support is arranged at the furnace door and extends across the door opening, and is a convenience for the stoker in manipulating the poker.

It has been proposed to employ a rest in the form of a roll mounted upon long rods that form roller bearings, but it is one of the objects of my invention to provide antifriction bearings for the revoluble member of the rest, that will not be liable to warp because of the heat, and therefore will not require constant lubrication.

Another object of the invention is to secure both economy and convenience by constructing the rest so that it is shiftable for use with each one of the several fire doors or openings of a boiler. I construct the rest in the form of a hanger preferably having the shape of a bail, which is provided with hooked ends to catch upon supports at the front of the boiler or furnace. One of the hooks may catch upon the usual hinge lug which projects from the front of the boiler to supportthe swinging door; the other of said hooks catches upon a bracket which may be permanently attached to the front of the furnace between the fire. doors. When either door is open, therest may be hung at one end upon the hinge lug and at the other end upon said bracket. The bracket is placed midway between the doors, to afford asupport for the rest when the latter is shifted for use with the other door or opening. The ends of the bail rests are alike, so that the bail may be hooked with its lefthand end upon the hinge lug on the lefthand door, or with its right-hand end upon the hinge lug of the right-hand door; and in either case said midway bracket will serve to support the other hook.

It will thus be seen thatn y improved rest, since it does not need to be permanently attached to the boiler, may be used first at one door and then at the-other, and also that it maybe. used upon different boilers; and inasmuch as fires need to be trimmed only at infrequent intervals it results that a single rest may be used for a large number of boilers, thus substantially reducing the cost as compared with rests which are designed to be permanently attached to the boilers, which require one such device for each door of each boiler.

Another feature of the invention which also conduces to economy and convenience, consists in the provision of means whereby the rest may be adapted for use with different heights of doors or fire openings, some of which are substantially higher than others. Since one end of the bail has to be hung upon the upper door hinge, and since the other end of the bail must be hung upon a bracket at about the level of said hinge, and since the bottom edges of the door openings are of various distances from said upper hinge in different boilers, it follows that individual rests would" have to be constructed for the dilferent boilers, as such rests have heretofore been proposed, in order to 'bring the horizontal member of the rest down low enough. One of the objects of my invention is to avoid this difficulty, and to provide a rest which is adaptable to different heights of fire openings. To this end I provide means for detaching the horizontal or roller member of the rest from the sides thereof, and for re-connecting said horizontal memher to said sides at different heights. Three different positions are illustrated for the poker-supporting roller. The arms of the bails are rigidly connected by a tie rod, which may be inserted at different heights in any selected pair of holes in the side arms, so that said roller may hang at the desired height in front of the fire-opening in the boiler. Each tie rod carries at its ends ball bearings, upon which the roller turns freely Without danger of binding because of the heat, and without the necessity of frequent lubrication. The tie-rod with its ball bearings forms a unit, the end of which may be readily inserted in selected holes in the side arms, and the whole structure may be made rigid by means of nuts threaded upon the projectingends of tie-rods. If the roller is once adjusted in this way to they proper height, the adjustment need not be disturbed so long as the rest is; used for the, same boiler. It will thus be'seen thatv av single structure has a great range of usefulness.

Other features and advantages will here inafter appear.

In the accompanying drawings,

Figure 1 is a front elevation of a portion of a boiler-front having two doors, with my improvements applied thereto; the right hand door of the two being open, and the poker rest arranged in front of the fire opening. There is also shown in dotted lines the position of the poker rest when shifted over to the other fire opening.

Fig. 2 is a plan of parts seen in Fig. 1.

Fig. 3 is an elevation of the improved rest.

Fig. 4; is a front elevation thereof, partly in section, and shows the manner of supporting the poker rest upon ball bearings in a way to permit the raising or lowering of the roller or rest.

Opposite fire doors for the boiler or furnace 10 are indicated at 11 and 12. The poker or tool for trimming the fire rests upon a horizontal roller 13, carried in front of fire opening 14 by a bail-like hanger com prising side arms 15, 16 connected by a tierod 17, Fig. 1. Said arms are formed at their upper ends with hooks 18, 19. Hook 19 catches over the lug 20 provided upon the front of the furnace for the door hinge 21, and the other hook 18 catches over a bracket or catch 22 which I fix to the front of the furnace midway between the doors, so that my improved support or rest may be used foreither fire opening 14L- or 23, by merely shifting the support from one to the other. The position in front of fire opening 23 is indicated by dotted lines at Fig. 1. One of the hooks may be provided with a handle 24 for convenience in shifting the support or rest.

The roller 13 revolves upon two sets of ball-bearings, the roller having at each end a cup 2 1, and the tie-rod 17 having a cone 25 to cooperate with the cup to form a raceway for bearing balls 26, the cone being threaded for adjustment upon the tie-rod, to take up play of the balls, and a lock-nut 27 being provided for retaining the cone where adjusted; this nut also serving to make a rigid joint between the tie-rod and the arm 15 (or 16), since the arm is confined between the cone and the nut. Each set of balls may be provided with a retaining washer 28.

It will be understood that the heat from the fire tends to warp the lengthy roller 13, but that such tendency will not tend to in terfere with the rotation of the roller, inasmuch as the latter is only supported. at its ends; and it will be seen that a considerable advantage is gained over a roller which is carried upon rods to serve as bearing rollers, such rods being also apt to become warped by the heat and thereby interfere with the necessary easy motion of the supporting roller, and making it necessary to supply undue amounts of lubricant; and

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the middle portion of the lengthy roller being especially difiicult to lubricate.

A further advantage is gained in that the tie-rods, ball-bearings and roller may be shifted from one position up or down to another position upon the hanger. To this end the hanger arms are provided each with a series of holes 29, the holes in one "arm being paired with those in the other arm, and the tie-rod 17 being inserted in the holes in any pair. .A single construction or support can thus be supplied for a variety of styles of boilers, or furnaes, having doors and door openings of different heights; and economy is effected by eliminating the necessity of manufacturing and supplying a different shape and size of support for each different type or size of boiler.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. A poker rest for fire-openings comprising a pair of arms and a tie rod having a supporting roller thereon, said tie rod mounted for adjustment and connectible to said side arms at different heights.

2. A poker rest for fire-openings, comprising a pair of arms and a tie rod having a supporting roller thereon, said tie rod mounted for adjustment and connectible to said side arms at different heights, said side armshaving each a series of holes, the holes in one arm being paired with those of the other arm, and means being provided for rigidly connecting the said arms with the ends of the tie rod. I

3. A poker rest for fire-openings, comprising a pair of arms and a tie rod having a supporting roller thereon, said tie rod mounted for adjustment and connectible to said side arms at difierent heights, said side arms having each a series of holes, the holes in one arm being paired with those of the 11 other arm, and means being provided for rigidly connecting the said arms with the ends of the tie rod, said tie rod having ends which project through said holes, and nuts threaded upon said ends; shoulders or collars being provided upon said tie rod, against which the nuts clamp said arms.

1. A poker rest comprising a bail and a roller, said bail having side arms and a tie rod, and ball bearings being provided to support the roller by its ends.

5. A poker rest comprising a bail and a roller, said bail having side arms and a tie rod, ball bearings being provided to support the roller by its ends, and means being provided for adjusting-the ball bearings.

6. A poker rest'comprising a bail 'and'a roller, said bail having side arms and a tie rod, ball bearings being provided to support the roller by its ends, and means being provided for securing rigidly the ends of the tie rod to the arms.

7. A poker rest comprising a bail and a roller, said bail having side arms and a tie rod, ball bearings being provided to support the roller by its ends, means being pro vided for securing rigidly the ends of the tie rod to the arms, said arms having each a series of holes through which the tie rod projects to cooperate with said securing means, and said holes permitting variation in the height at which the roller is carried by the side arms.

8. A poker rest comprising a bail and a roller, said bail having side arms and a tie rod and ball bearings being provided to support the roller by its ends, cups in the ends of said roller, and collars threaded upon said rod and having cones to cooperate with said cups to form ball-races, and nuts threaded upon the projecting ends of the tie rod to clamp said arms to said collars, to make rigid joints between the ends of the tie rod and said arms, and also to secure the collars where adjusted.

JOSEPH PAVLIK. WVitnesses:

J. M. PAVLIK, G. W. A. KING.

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