SLOW-BURNING LOG

Abstract

The invention relates to warming, heating, lighting devices, which represent a source of long-term stand-alone fire that can be utilized for using in fireplaces; in the field, in campings and in rest outside the city, in any touristic or other events. A slow-burning log is made of a solid-fuel material of a vegetable origin, the log having front, rear and side surfaces, through incisions, which are opened at the top of the side surface and which extend from the front surface to the rear one and, when penetrating into the log body, move apart at an angle with respect to each other and terminate in the log body. There are at least two through incisions made, at least two middle recesses, which intersect between each other at the top and intersect longitudinal incisions, are made at the top of the side surface, furthermore, the log has at least two longitudinal incisions at the bottom of the side surface, one of them begins at the bottom of the front surface in the middle section thereof, and another oneat the bottom of the rear surface in the middle section thereof, and which terminate in the log body in the region between the through incisions. At least two through incisions are made completely separated from each other by the log body. The middle recesses begin from the top section of the side surface and couple with the through incisions at a distance from the log center thereby forming a combined air channel with them, the channel having entrances for air on the front and rear surfaces and in the midsection of the side surface of the log. The longitudinal incisions are made vertically or concentrically, one of them extends from the front surface towards the rear one, while another extends from the rear surface towards the front one, and they are not coupled with each other. The log has an ignition agent that is arranged in at least one of the through incisions and/or in at least one middle recess, the log is made with a handle, with a flat surface at the bottom along the entire length. The technical effect lies in increase of the burning time of the device thereby providing uniform burning of the log along the entire length, elimination of breakage of the device into parts during burning with complete combustion of the device and, thus, provision of complete combustion.

Claims

1. A slow-burning log made of a solid-fuel material of a vegetable origin, the log having front, rear and side surfaces, through incisions, which are opened at the top of the side surface and which extend from the front surface to the rear one and, when penetrating into the log body, move apart at an angle with respect to each other and terminate in the log body, characterized in that there are at least two through incisions made, at least two middle recesses, which intersect between each other at the top and intersect longitudinal incisions, are made at the top of the side surface, besides, the log has at least two longitudinal incisions at the bottom of the side surface, one of them begins at the bottom of the front surface in the middle section thereof, and another oneat the bottom of the rear surface in the middle section thereof, and which terminate in the log body in the region between the through incisions.

2. The slow-burning log according to claim 1, characterized in that at least two through incisions are made completely separated from each other by the log body.

3. The slow-burning log according to claim 1, characterized in that the middle recesses begin from the top section of the side surface and couple with the through incisions at a distance from the log center thereby forming a combined air channel with them, the channel having entrances for air on the front and rear surfaces and in the midsection of the side surface of the log.

4. The slow-burning log according to claim 1, characterized in that the longitudinal incisions are made vertically or concentrically.

5. The slow-burning log according to claim 1, characterized in that one of the longitudinal incisions extends from the front surface towards the rear one, while another extends from the rear surface towards the front one.

6. The slow-burning log according to claim 1, characterized in that the longitudinal incisions are not coupled between each other.

7. The slow-burning log according to claim 1, characterized in that an ignition agent is arranged in at least one of the through incisions and/or in at least one middle recess.

8. The slow-burning log according to claim 1, characterized in that it is made with a handle.

9. The slow-burning log according to claim 1, characterized in that it is made with a flat surface at the bottom along the entire length.

Description

[0030] The essence of the claimed technical solution will be explained below referring to the illustrative material, which presents: FIG. 1an overall view of the slow-burning log; FIG. 2a front view of the slow-burning log; FIG. 3a rear view of the slow-burning log; FIG. 4a top view of the slow-burning log; FIG. 5a bottom view of the slow-burning log; FIGS. 6, 7, 8examples of embodiments of the slow-burning log: FIG. 6an overall top view, FIG. 7a front view, FIG. 8a fragment of the overall bottom view.

[0031] The proposed slow-burning log in one of possible embodiments that is not exclusive includes: a side surface 1; a front surface 2; a rear surface 3; middle recesses 4, which intersect with through incisions 5; longitudinal incisions 6, which begin on the front surface 2 and on the rear surface 3.

[0032] The through incisions 5, which are made along the entire length of the side surface 1 and extend from the front surface 2 to the rear surface 3, penetrate into the log body at an angle with respect to each other, symmetrically moving apart in different directions at the top form the central section of the log, and terminate in the log body.

[0033] The middle recesses 4, if there are two of them made, intersect between each other at the top in the middle section of the log such that the region of their intersection is arranged in the region of the through incisions 5. When the log is made with three or more middle recesses 4, they are distributed uniformly. The middle recesses 4 are made vertically and, when penetrating into the log body, may reach the lower section of the through incisions 5, couple with them thereby forming general air channels, which are coupled between each other, with entrances on the front, rear and side surfaces.

[0034] At least two longitudinal incisions 6 are made at the bottom of the log on the side surface 1, one of the incisions begins at the bottom in the middle section of the front surface 2 and terminates on the front surface in the region between the through incisions 5, while another one begins at the bottom in the midsection of the rear surface 3 and terminates in the region between the through incisions 5. The longitudinal incisions 6 are made horizontally, preferably there are two of them, each one on the front surface 2 and on the rear surface 3 respectively. If the log is made with more longitudinal incisions 6, they are preferably made in pairs on the front surface 2 and on the rear surface 3 respectively. The longitudinal incisions 6 are made preferably vertically. The longitudinal incisions 6, when extending from the front surface 2 towards the rear surface 3 but without reaching it, and from the rear surface 3 towards the front surface 2 without reaching it, are not coupled between each other.

[0035] The slow-burning log is preferably used in fireplaces, barbecues in any touristic events and in rest outside the city, in campings as a source of long-term stand-alone fire for warming, cooking or as a light source in the following way.

[0036] The slow-burning log is arranged horizontally on the lower flat surface thereof, wherein the middle recesses 4 and through incisions 5 are arranged at the top. The ignition agent arranged in the through incisions 5 or in the middle incisions 6 or a wick of this agent extending therefrom is scorched. Afterwards, gradual uniform slow inflammation of the slow-burning log occurs.

[0037] Air is delivered through the middle recesses 4 arranged in the midsection of the side surface 1 directly to the through incisions 5, while the air increases intensity of gas exchange in the burning zone and enables uniform ignition of the log with gradual distribution of flame along the through incisions 5 along their entire length that provides uniform burning of the log.

[0038] Furthermore, at the beginning of ignition of the device, air being delivered to the longitudinal incisions 6 and at the same time being flew out therefrom is delivered to the through incisions 5 due to stack effect that is created due to temperature difference of the air in the through incisions 5 and longitudinal incisions 6.

[0039] During burning of the device, the region between the through incisions 5 is combusted resulting in that the perimeter of the through incisions 5 is combined with the perimeter of the longitudinal incisions 6 thereby forming general through air channel along the entire length of the log. Afterwards, the flame is distributed to the lower section of the log that provides gradual combustion of the front and rear surfaces and, thus, ends of the log gradually with the midsection from top to bottom as well as non-breakage of the device till the end of the burning time.

[0040] The region of the flame distribution displaces uniformly and slowly from its upper section to the lower one along the entire length of the log until the final combustion of the log occurs.

[0041] Preferably, the slow-burning log is made from timber. Various wood species are used, preferably, birch.

[0042] It has been experimentally established that making the middle recesses, according to the claimed structural solution being proposed, leads to uniform distribution of the flame zone in the through incisions, since such structure allows provision of the air supply distribution, in contrast to the extension of the burning channels as made in the closest analogue as well as provides uniform distribution of the air in the through incisions that is delivered through the middle recesses.

[0043] Also as a result of the experimental study it has been established that the longitudinal incisions provide non-breakage of the log into parts during burning and complete combustion thereof, including lower section and ends thereof, due to extension of the burning zone and formation of the general through air channel. Extension of the burning zone opens free access for the fire to the additional fuel volume that is contained in the lower section of the log along the entire length thereof thereby increasing the burning time of the device and, thus, usage time.

[0044] Upon comparison of the proposed technical solution with the analogues known from the prior art, it is concluded that the slow-burning log meets the criterion of inventive step, since it is presented with qualitative structural changes of making the incisions and recesses thereby producing an improved uniformly distributed ventilation system with associated structurally effectively functioning airflows for supplying air to the burning zone that provides achievement of said technical effect being not established in the existing prior art earlier.

[0045] Structures of the slow-burning log having the claimed set of essential features have not been revealed from existing sources of patent and scientific and technical information, thus, the presented technical solution meets the criterion of novelty.

[0046] Also, the proposed technical solution is suitable for use, since it does not require development of supercomplex equipment and it is reproducible using known technical means and materials, therefore, the present technical solution is considered to be compliant with the criterion of industrial applicability.