US625711A - Apparatus for - Google Patents

Description

` No. 625,7". Patented Mayes, |399..

. N. STEVENS.

APPARATUS FOR APPLYITNG HEAT TOPAVEMENTS FR DISINFECTING UR'MELTING SNOW.

' (Application led Feb. 24, 1899.) (No Model.) v3 S u- L .s l I@ :um

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, m. 625,7, Patented my 23; |899.

.1.. N. STEVENS. y

'Mmmmssrw Mmm@ HEM ,m PAVEMENT?, Fam m SWW.

VAppliemcn led Feb. 24, 1899.) (H0 Budel.) c

SINFECTING OR MELTING 3 Sheets-Sheet 2.

Patented may 23,' |899.

R. N. STEVENS. APPARATUS FOB APPLYING HEAT T0 PAVEMENTS FDR DISINFECTING URMELTING snow. l (No Model.) Application md Feb. 24, 1599.)

a sheets-sheet a.

UNITED STATES ROBERT N. STEVENS,

PATENT OEETCE.

OF NEW YORK, N. Y.

APPARATUS FOR APPLYING HEAT TO PAVEMENTS FOR DISYINFECTING R MELTING SNOW.

SPECIFICATION forming part of Letters Patent No. 625,71 1, `dated May 23, 1899. Application tiled February 2.4, 1899. Serial No. 706.688. (No model.)

-to Pavements for Disinfecting or Melting Snow, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The present invention relates to that class of pavement-heating machines which can be' used for melting snow or destroying pathogenic animal germsg'and the objectof the' present invention is to furnish improved means for varying the internal capacity of the flame# 'box, for directing the :dame within the Iiamebox toward or from the pavement, for pre' venting the escape of the flame at the edges of the box, and for preventing the radiation of heat from the top and sides of the box.

The drawings illustrate a machine embodying these improvements.

Figure lisa side elevation of the apparatus; Fig. 2, a view of the rear end of the box; Fig.

. l 3, a longitudinal section of the box upon line 3 3 in Fig. 2; Fig. 4, the curtains for the rear end of the box; Fig; 5, a cross-section of the box on line 5 5 in Fig. l; Fig. 6, a front elevation of the machine; Fig.` 7, a plan of the machine 5 Fig. 8, a perspective view of one of the side curtains, and Fig. 9 a perspective view of the body or skeleton of the name-box without its attachments. l

The body is formed of vertical sides and ends A A', ystiiened at the top by a ange or angle-iron u, and braced across the top at the rear end by two cross-bars c. The box is carried by an axle B, supported by wheels C in the rear of the box and connected tothe crossl bars a by side rails Z), having a handle c for moving the apparatus.

The roof of the dame-box is formed of a top plate A2, secured movably with in the sides or body, so as to vary the internal height of the box at pleasure. The top plafifeI is held adj ustably within the body by chains Z, hooked upon pins m, which are projected upwardly at intervals from the iiange a upon the body,

but the top plate may be adjusted and` secured by any other suitable means.

The body A A is held by the side rails ant handle c a few inches above the pavement, and the sides and ends are provided with asbestos curtains D,which sweep upon' the pavement aud conform to its inequalities, so as to retain thelame in the box. The sides and ends are provided with rows of hooks e to sustain the curtains, and one of the side curtains is shown in Fig. 6 provided with two sets of eyelets d', either of which is adapted to engage the hooks e. fixed at different heights upon the body to conform to the inequalities of the ground or to compensate for wear upon their lower edges.

A platform b upon the rails b carries an oiltank E, and a series of burners dis shown mounted at the rear end of the iiame-box to project the flame forwardly into the same. The rear end A' isl formed with notches f to admit the flame, and the rear curtain (shown in Fig. 4) is formed with slots f for the same purpose.

' The so-called Wells burner is represented in Figs. l and 2,` which burner has a rectangle f tubes, through which the fiame is projected to vaporize the oil before combustion.

The burners are represented in Fig. 1 suspended or projected from the lower side of a pipe G, which is arranged to rock in bearings g upon the rear end A' of the flame-'box and is connected by hose g' and cock G with the tank E. By mounting the burners upon the swiveling tube G, which .supplies them with oil, they may be inclined toward the pavement, as shown in Fig. l, or toward the top plate A2, as shown in Fig. 3.

A series of apertures Il is formed in the front end of the body, and a damper-plate H is applied thereto for closing or opening the apertures, and a similar damper,` and series of apertures may be formed upon the top plate near the front end of the flame-box, if desired.

It will be understood from the above de-` scription that the four sides of the flame-box form a skeleton'body, which is fixed to the supporting carriage or axle, so as to be sustained above the pavement, while the fire- The curtains may thus be;

proof curtains applied to the sides ofthe box .serve to make a contact with the 'uneven sur- Y face of thepa'vement and to confine the flame inthe box far `lnore eiectually than'can bedone with sides of rigid material.

A set-screw lo is shown in one of the bearings g to clamp the burner-supporting tube G when adjusted with the burners in thei proper position, and the burners may thus be directed downwardly when the apparatus is Iused' in melting ice, which requires the most'.-

direet application of the heat.

The adjustability of the top plate A2 permits the internal capacity of the lamelbox to be increased when the apparatus is used for melting snow, in which case the box is directed upwardly by the depression of the handle c and then pressed downwardly upon j the snow to be melted.

Where the apparatus is used for destroying when operating upon a pavement of wood or asphaltum to prevent overheating the same. ln such case the adj nstability of the top plate Azpermitsv the lowering of the same closeenough to the pavement to radiate heat ef fectively upon the latter, vand the flame F is then directed upwardly, `as shown in Fig. 3,

to'heat the plate A for such'purpose and to avoid the impingement of the llame directly upon the pavement. To ntiliz'e the heat most effectively in thus sterilizing a pavement, I; prefer .to prevent radiation from the top and` sides of the vllamebox by arranging an asbes` tos blanket I over the entire llame-box, as

shown in Fig. 5 and as indicated by dotted'- lines I in Fig. 9. Such asbestos blanket -retains the heat in the top plate A2 and sides A, and thus secures the radiation of the heat to the pavement with the least possible loss.

It is obvious that the asbestos'blanket perv forms the same function as the asbestos curtains when placed over the flame-box and eX? tended down the sides of the same into con tact with the uneven surface of the pave-4 ment, and it may therefore be used in place of the curtains to confine the flame within' the flame-box when the' bottom of the flamebox does not conform with the pavement.

The essential features of the invention are the movability of the top plate A2 within the skeleton body, the-use of fireproof curtains to lcon tact with the pavement below the edgesl of the body, the pivoting of the burners to' i direct the llame upwardly and downwardlyfrom the planeof the llame-box, and the as bestes blanket applied over the whole flamebox to prevent radiation and to retain thev flame in the box when required by extending the blanket to the pavement. It is obvious tirata part of these improvementsmay bel pavement, the combination, with a liame-box body and'nieans for traversing it over 'the pavement, of curtains of flexible material -v applied to its sides to contact with the nneven surface ofthe pavement and thereby confine the flame, substantially as herein set forth. V

2. In an apparatus for applying flame to a pavement, the combination, with a supporting-axle having wheels upon its ends, of .a llame-box body sustained by the axle above the pavement, and flreproof curtains applied Ato the sides ofl the box to contact with the uneven surface of the pavement and thereby confine the llame, substantially as herein set forth.

3. An apparatus for applying flame to a pavement, comprising a supporting-axle with wheels at the ends, a flame-box body attached to the axle, and a top secured movably within the body, substantially as herein set forth.

4. An apparatus for applying flame to a pavement, comprising a supporting-axle with wheels at the ends, a llame-box body attached to the axle and sustained thereby above the pavement, a top secured movably within the'body, and ireproof curtains projected below the bottom of the body to contactwith the uneven surface of thepavement substantially and thereby confine the flame, as herein set forth.

5. An apparatusfor applying flame to a pavement, comprising a supportingf'axle with wheels at the ends, a flame-,box body formed" of vertical sides with stiifening-ilange at the top, a top plate secured adj nstably withinthe body, and lireproof curtains projected below the bottom of the body, as and forthe purpose set forth. e

6. In an apparatus 'for applying flame to a pavement, the combination, with a flame-.box bod y sustained above the pavement, and provided with supporting-pins, of asbestos curtains having two or more sets of holes adapted to lit the pins so as to project the curtain l a greater or less degree below the body, substautiallyas herein set forth.

7. In an apparatus for applying flame to a pavement, the combination, with a flame-box and a liquid-fuel reservoir, of means of sus-A taining the box above 'the pavementtand a series of liquid-fuel b rners hinged at the rear end of the box to. e inclined above or below the plane of the boX,and-suitable connectious. between the burners and reservoir, as and for the purpose set forth. l I

8. In an apparatus for-applying llame to a pavement, the combination, with a llame-box and a liquid-fuel reservoir, of means for sustaining the box above the pavement, a pipe swiveled horizontally upon the rear end of the llame-box and connected with the liquid-fuel reservoir, anda series of liquid-fuel burners attached to such pipe,whereby the llame may be directed above or below thev plane of the box, as and for the purpose set forth.

9. The combination, with an apparatus ICO ` 5 set forth.

having a `alne-box with burners for applying heat to a pavement, of an asbestos blanket applied to the top and sides of the ameebox to prevent radiation, substantially as herein 10. TheV combination, with an apparatus having a flame-box with burners for applying heat to a pavement, of an asbestos blanket applied removably to the top andrsides of the lo flame-box and als`to the adjacent pavement,

to confine thailame and also to prevent ra* dation, as and forthe purpose set forth.

In testimony whereof I have hereunto set my handuin the presence` of two subscribing witnesses.

- ROBERT NASTEVENSa Vlitnessesff 4)IL/LEE, THOMAS S. CRANE,

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