US293258A - Furnace fire-grate and frame - Google Patents

Description

(N0 Model.)

.15: W." LOVE'L'A ND. I FURNACE PI-RE' GRATE AND FRAME.

1%.. 293.258. Patented Feb. 12, 1884.

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FURNACE FlRE-GRATE AND FRAME.

I SPECIFICATION forming part of Letters Patent No. 293,258, dated February 12, 1884.

Application filed May 21, 1883.

To aZZ whom it may concern.-

Be it known that I, HORACE W. LOVELAND, a citizen of the United States, residing at T- peka, in the county of Shawnee and State of Kansas, have invented a new and useful Furnace FireGrate and Frame, of which the following is a specification.

My invention relates to improvements in furnace fire-grates; and it consists in certain features of construction and in combination of parts hereinafter described, and pointed out in the claims.

' verse section of the same.

A and B are the sidepieces of the supporting-frame for the grate-bars, and are joined by the front and back pieces, 0 and G. The side pieces have lugs at each end extending below,

as at a, in which-are pivoted the oscillating cross-bars D and D. These oscillating bars have, respectively, the arms d and cl, and the bar D has also the lug cl, provided with a hole for engaging the removable lever (1 The side piece A has at the central partan arm, a, extending below and supporting the lever 1 E, that is pivotally attached thereto near the center thereof, as shown. The lower end of the lever E is connected by the rod 0 to the arm d, while the upper end ofthe lever is connected by the rod e to the arm cl. The grate-bars F, as shown in Fig. 2, are notched at one end on the lower side, to engage the upright leg of the oscillating bars, while the other end of the grate-bar has a lug, f, resting on the horizontal leg of the said oscillating bars. When in position, alternate gratebars have their notched ends at the right hand, while the intervening bars have their notched ends to the left hand.

The operation of the device is as follows: By means of the lever d the bar D is oscillated or rocked, and this oscillating motion by means of the lever E and the rods 6 and e is conveyed to the bar D, but in an opposite (No model.)

direction-to wit., when the upright leg of the bar D moves to the right the upright leg of the bar D will move to the left hand, and vice versa. The alternate grate-bars, whose notched ends engage the bar D, will reciprocate simultaneously with, but in an opposite direction from, the intervening bars, whose notches engage the bar D. The grate-bars reciprocated by the bar D are at each reciprocation raised and lowered at the other or lefthand end by means of the lugs f, engaging the horizontal leg of the bar D. In like manner the intervening grate-barsreciprocated by the lever D are raised and lowered at their right hand end by the engagement of the respective lugs f with the horizontal leg of the bar D. This movement endwise and in opposite directions of contiguous grate-bars, together with the vertical movement described of the opposite ends of the said contiguous grate bars, prevents the clinkers from attaching to the grate-bars, and also breaks and crushes the clinkers into such small fragments that they are, together with the ashes, readily discharged through the spaces between the said gratebars. This, too, is accomplished without open ing the furnace-doors or in any way retarding the process of combustion. The lever (l may be operated through a slot in the fire-front or through the open ash-pit door.

What I claim is- 1. In furnace grate-bars, oscillating cross bars, each provided with an upright and a horizontal leg, and so arranged that the respective horizontal legs extend toward each other, and provided with suitable connecting mechanism, so that the two cross-bars will oscillate simultaneously and the respective upright legs move in opposite directions, substantially as and for the purpose set forth.

2. Furnace grate-bars provided at one end with a notch adapted to engage the upright leg of the oscillating cross-bar, and the other end of the grate-bar provided underneath with a flat surface and a lug, the former adapted to slide on the contiguous crossbar, and the latter adapted to engage the horizontal leg of the said crossbar, so as to be actuated vertiopposite directions and will be actuated vertically at opposite ends, substantially as described, and for the purpose specified.

4:- The combination, with furnace grate-bars, substantially as described, of the cross-bars D and D, provided with the actuating mechanism E, e, and e, and-the lever (1 I HORACE XV. LOVELAND.

\Vitn esses:

. G. GREENWALD, FRANK HERALD.

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