US715842A

US715842A - Steam-boiler.

Info

Publication number: US715842A
Application number: US10988402A
Authority: US
Inventors: Robert Mckay
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-06-02
Filing date: 1902-06-02
Publication date: 1902-12-16
Anticipated expiration: 1919-12-16

Description

no. 7l5,842. v Patented Dec. l6, I902.

B. McKAY.

STEAM BOILER.

(Application fiIedJuno B. 1902.) (No Modal.)

4 Sheots-Shaet 2.

-Witnesss Q/gQ/{Qy lriventor,

Attorneys N0. 7l5,842. Patonted D6 0. I6, I902.

B. MGKAY.

STEAM BOILER.

(Appliution fllQd Juno 2, 1909.) (lfl'lflllam 4 Shack-Sheet 3.

JL M ifv Witnesses: fl g jg- K y Inventor,

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62 3/ Attorneys m: "hams PETERS 00v. Pnumumq. wuumzmm. D4 c.

Patented Dec. I6, I902. B. McKAY. STEAM BOILER. Application filed tuna 2, 1902.)

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Inventof,

Attorneys l ll I .l

No. 7l5,842.

(No Model.)

wltnesses: F$

UNrrnn STATES PATENT OFFICE.

ROBERT MOKAY, OF QUEBEC, CANADA.

STEAM- BOILER.

$PECIFIGATION forming part of Letters Patent No. 715,842, dated December 16, 1902.

Application filed June 2; 1902.

To aZZ whom it fitay concern;

Be it known that I, ROBERT MCKAY, a subject of the King of Great Britain, residing at the city of Quebec, Province of Quebec, Canada, have invented certain new and useful Improvements in Steam-Boilers; and I do hereby'declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to whichitappertains to make and use the same.

My invention relates to a steam-boiler of what is known as the vertical type, being of a generally cylindrical pattern, with a firechamber in the lower end, and arranged to have the gases of combustion pass through fire-tubes to a combustionchamber in the upper end.

The object of my invention is to produce a boiler of very largely increased steaming capacity over those now in common use-that is to say, one which shall evaporate a much greater quantity of water in a given time than any boiler of the same size now in use and yet at the same time which shall so fully utilize the heat of the gases of combustion as to allow a minimum of heat to escape into the air, thus adding to its merits that of a maximum of efficiency.

Another object of my invention is to produce a boiler which, while having a very greatly increased heating-surface, yet may be readily taken apart and cleaned, permitting of access to all parts of the boiler, which shall be constructible ata minimum of cost and be comparativelyfree from the necessity of frequent and extensive repairs, and which shall be to a certain extent self-cleaning and not liable to get out of order from differences in the expansion and contraction of the individual parts and other like causes, which are a frequent source of both expense and disaster with most types of boilers. g

The usual type of vertical boiler is' constructed with a cylindrical shell, capped at top and bottom by a pair of circular heads, between which pass a series of vertical tubes, and up these tubes the gases of combustion are adapted to pass on their way to the chimney. The water is contained within the shell, and owing to the fact that this water cannot entirely cover the tubes-that is to say, must stand at a certain level within the shell, so

as to leave the upper ends of the tubes unprotected-the latter are apt to become highly heated at their upper ends, which are not surrounded by water, and this causes frequent leaks and the escape of steam and pressure in a manner that is often wholly unaccountable by reason of the fact that these upper ends of the tubes are concealed within the smoke-box, so that the leak or leaks cannot be observed while the boiler is in operation. Moreover, this causes a corrosion of the tubes at the upper ends, so that they have to be taken out and replaced by others, and the expansion of the tubebeing greater than that of the boiler-shell tends to bulge and warp thehead unevenly, and thus increase the tendency to leak. It is my special object in'the present invention to avoid and overcome these defects by providing firetubes which'shall be completely covered with water and another set of fire-tubes through which the combustion-gases are adapted to pass subsequently to the passage of the first set and after they have been cooled down to a comparatively low temperature, and these last-named tubes are arranged to be free from water throughout nearly their entirelength.

Another defect of the present type of vertical boiler in use is that the combustion or socalled smoke-chamber, which is provided for the gases above the tubes, is located entirely above the water and steam to be heated, so that the eifect of these hot gases and the combustion thereof is practically lost, except so far as it is communicated by downward radiation to the upper tube-sheet of the boiler. It is therefore another important object of this invention to-remedy this defeet by providing a primary or intermediate combustion-chamber located in the midst of the boiler and surrounded on both sides by water, whereby during the full and complete combustion of the gases the heat thereof may be communicated not simply by radiation to the tube-sheet below the said smoke-chamber, but likewise by both radiation and convection also to the lower tube-sheet of the upper boiler-section on the upper side of the said smoke-chamber.

Another object of my invention is to combine the merits of the Water-tube and firetube types of steam-boiler by providing concentric water and fire tubes, the former arranged to be inclosed by and depend within and concentric with the latter, whereby the gases of combustion are caused to pass up in annular form between two bodies of water, thus as completely as possible extracting from them their contained heat.

To these and other ends, which will hereinafterappear,myinvention consists,substan tially, of a compound tubular shell, ordinarily cylindrical in outline, composed of three sections mounted end to end. The lower section of the shell is provided, preferably, with a fire-chamber in its lower end, having an interior concentric shell forming a water-leg for that purpose, and the two ends of the shell thus formed are capped by two circular heads, between which pass a number of vertical tubes in the same manner as in the ordinary vertical boiler, so that this lower section forms substantially a boiler in itself. Immediately above this and separated from it by an intermediate space is placed the third section, which is in the shape of a plain cylindrical drum capped by two heads, between which pass another series of fire-tubes; but the third section is operatively connected with the first section by a series of short connecting-pipes, so that the lower section is arranged to be completely filled with water, and the level of the water will stand close to the lower head of the upper or third section just mentioned, thus substantially separating the water-holding and the steam-holding parts into two separate chambers. Between these two sections is located the second section of the boiler, which is also a plain cylindrical drum, but without heads, and the three are thus joined end to end, the second section inclosing asmoke or combustion space between the first and third sections, and thus increasing not simply the heating area, but also the facility of combustion, while above the third section is attached an additional or secondary smoke-chamber, which leads to the chimney.

My invention further consists in providing a series of water-tubes depending from the lower side of the upper section of the boiler, which water-tubes are arranged to depend right through the primary smoke-chamber above mentioned and into and through the fire-tubes of the first section, so as to form water-tubes within the fire-tubes, and thus combine the merits of both types of apparatus in a manner which, so far as known to me, is entirely novel.

My invention further consists in the construction and combination of parts, which will appear from the following description and are more particularly pointed out in the claims.

In the drawings accompanying this specification I have shown the preferred form of my improved steam-boiler, and herein Figure 1 is a side elevation of the boiler. Fig. 2 is a vertical central section thereof.

Fig. 3 is a horizontal or plan section taken on the line 3 3 of Fig. 2-that is to say, just above the upper tube-sheet of the steam-section. Fig. 4 is a similar horizontal or plan section taken on the line 4 4 of Fig. 2-that is to say, just above the lower tube-sheet of the same section. Fig. 5 isasimilarhorizontal or plan section taken on the line 5 5 of Fig. 2-that is to say, just above the upper tubesheet of the lower or water section. Fig. 6 is a similar horizontal or plan section taken on the line 6 6 of Fig. 2that is to say, just above the crown-sheet of the boiler. Fig. 7 is a vertical central section of the lower or Water section of the boiler as separated from the remainder of the boiler during the process of cleaning, inspecting, or repairing the same. Fig. 8 is a vertical central section of the second or smoke-box section which connects the water and steam sections. Fig. 9 is a vertical central section taken through the upper or steam section as separated from the other section in the process of cleaning, inspecting, or repairing the same. Fig. 10 is a perspective view of the interior of the boiler with the front portion of the shell removed. Fig. 11 is an enlarged fragmentary view showing the junction of the first, second, and third sections of the boiler. Fig. 12 is also an enlarged fragmentary detail view of the hollow stay-bolts or water-pipes connecting the water and steam sections.

The same numerals of reference denote like parts in all the figures of the drawings.

The three sections of the boiler, as shown in the drawings, are designated, respectively, as 11, 12, and 13, the lower being the watersection, the middle one the smoke-box or connecting section, and the upper the steam-section. The two

sections

11 and 13 are each formed of a cylindrical shell or boiler-

plate

14 and 15 of the same diameter. Interiorly of the lower'seetion 11 and at the lower end thereof there is formed a fire-chamber 16 by means of a concentric shell 17, attached to the shell 11 at its lower end by rivets 18, but separated therefrom by a hoop 1.), thus forming a water-leg 20, surrounding the chamber 16, and this fire-chamber is provided with a suitable grate 21 and an opening 22 in the front side, provided with a hinged fire-door 23, mounted on a pintle 24 and provided with a latch 25. The upper side of the fire-chamber 16 is closed by the crown-sheet 26, which is bored with a number of holes for the reception of the lower ends of a series of fire-tubes 27, which are expanded or otherwise secured therein and whose upper ends are likewise expanded or otherwise secured in suitable apertures in the upper tube-sheet 28, which is attached to the upper end of the shell 14 by rivets 29, whose exterior heads are countersunk flush with the surface of the shell 14. As shown in Figs. 5 and 6, the boiler herein illustrated is provided with sixty-one of these tubes, arranged in the form of a regular hexagon.

The upper or steam section of the boiler 13 is formed, as aforesaid, of the cylindrical shell 15, which is in general considerably shorter than the shell 14 of the section 11 and is inclosed at its two ends by lower and upper tube-sheets and 31, which are connected by a series of vertical fire-tubes 32 in the same manner as the heads of the lower section and as shown in Figs. 3 and 4, there being provided herein, as shown, thirty of these tubes, twelve of which are located directly over the ends and coaxial with corresponding tubes 27 of the lower section; but the remaining ones are located around the margin of the sheet, so as to give room for the insertion of the water-tubes 33 in the lower sheet of the steam-section, as will be presently described, and, further, to check the passage of the gases in the space between the upper and lower boiler sections and cause the gases to pass horizontally in order to find exit, thus further commingling and becoming fully burned, as well as more thoroughly communicating the heat by radiation and convection to the adjacent heating-surface.

The upper and

lower sections

13 and 11 are furthermore connected by a series of hollow stay-bolts or water-pipes 34, which are threaded at both ends, as shown, and are in the boiler herein illustrated seven in number that is to say, one at the center and six around the margins of the

sheets

28 and 30. These tubular bolts 34 are threaded at their lower ends into the heads 28, as shown, or may be otherwise permanently fixed thereto and expanded therein, if necessary; but the upper ends of the bolts 34 are removably connected with the head 30 of the upper section by means of a pair of

hexagonal nuts

35 and 36, mounted, respectively, below and above the sheet 30, so as to clamp the same tightly between them, and to increase and solidify the strength and tightness of the joint I may insert asbestos washers 37. The nature of this joint is more clearly illustrated, on an enlarged scale, in Fig. 12.

In connecting the upperand

lower sections

13 and 11 to each other the bolts 34 are first screwed into the head 28 of the lower section, as shown in Fig. 7, after which the lower nuts 35 are ,properly placed upon the upper ends of the bolts. After this the lower head 30 is placed upon the ends of the bolts 34 and the upper nuts 36 screwed thereover, the proper asbestos washers having been of course inserted in the joint. To enable the nuts 36 to be adjusted and tightened, as well as removed during the operation of taking apart the boiler, I provide the upper head 31 with a series of seven apertures 37, each closed by a screw-plug 38, having a polygonal head 39, these plugs being located immediately over the respective tubes 34, so that by removing the plugs a socket-wrench may be inserted into each of the holes and the nuts 36 tightened in place, after which the plugs 38 are for the passage of the gases.

screwed in to close the apertures 37 and render the section 13 steam-tight.

As hereinbefore observed, the twelve cen' trally-located fire-tubes 32 of the steam-section are directly over the corresponding firetnbes 27 of the lower section, and the passage-ways through the lower tubes are thus open for their entire length and free from obstructions; but the remaining fire-tubes 27 of the lower section have each depending therethrough and concentrically therewith a water-tube 33, which is sufficiently small to pass through the corresponding tube 27, leaving an annular space between the two tubes The tubes 33 are properly expanded or otherwise fixed into suitable apertures in the tube-sheet 30, being, as herein shown, forty-eight in number, and they depend a certain distance below the crown-sheet 26, as shown in Fig. 2, their lower ends being closed. These tubes very greatly add to the efficiency and capacity of the boiler by assisting in the extraction of heat from the gases and spreading out the latter in their passage through the fire-tube into a thin annular sheet.

The water and

steam sections

11 and 13 are solidly connected together by the bolts 34 in the manner above described; but in order to inclose the space between the two

heads

28 and 30 thereof and form a combustionchamber I provide the intermediate inclosing section 12, which is in the nature of a simple cylindrical band or belt surrounding the inclosed space. As herein shown, this belt is formed of two

annular sheets

40 and 41, the inner one of which, 40, is of the same diameter as the

cylindrical shells

14 and 15 and forms a continuation thereof, being jointed thereto by the oblique joints 42 and fitting closely over the

flanges

43 and 44 of the

sheets

28 and 30, where they are joined to their respective shells by

rivets

29 and 45, both countersunk on their outer sides, so as to be flush with the surfaces of the

shells

14 and 15. The outer piece 41 of the section 12 is sufficiently long, as shown, to overlap a portion of the ends of the

shells

14 and 15, so that the latter will be solidly driven thereinto and engaged therewith when the boiler is set up and before screwing up the nuts 36. The two

sheets

40 and 41 are connected together by a series of rivets 46. This arrangement forms a substantially tight joint and prevents the escape of the combustion-gases around the edges of the joint, while at the same time permitting the sections of the boiler to be readily separated. The combustion-chamber, inclosed by the section 12 and the

heads

23 and 30, is designated by the numeral 47. To the upper end of the upper section 13 I may connect a suitable conicalshell 48 by means of the rivets 49, which join the tube-sheet 31 to the shell 15, thus forming a secondary smoke-box 50, at the upper end of which is connected a stack 51.

I have herein shown the usual appendages of a steam-boiler, consisting of a water-gage 52, attached to the steam-section, and an inlet and blow-

0E pipe

53 and 54, connected at the back of the water-section, as usual; but of course these do not form a part of my invention. The water-line, as illustrated in Figs. 1 and 9, is arranged to stand ordinarily near the bottom of the upper or steam section 13, so that the latter is filled almost completely with steam, while the lower section 11 is completely filled between the two heads thereof with water, and the steam that is generated therein passes up through the tubular bolts 34, which permit the circulation of the water. The depending watertubes 33 provide for an additional circulation of water independently of the watersection 11. The arrangement thus provided causes the lower series of fire-tubes 27 to be uniformly heated throughout their length and to extract the greater part of the heat of the combustion-gases before they pass into the combustion-chamber 47. \Vhile in this chamber the combustion is completed and the heat thereof radiated and conducted by convection to the water located on both the upper and lower sides of this chamber, after which the gases thus materially cooled pass through the upper fire-tubes 3:2, and thus while the last of the heat is enabled to be extracted from the gases at the same time there is no danger of overheating of the tubes. The upper tubes 32 are surrounded for their entire length, wit-h the exception of a small portion atthe lower ends thereof, by steam, so that they are uniformly heated, and the steam contained in the upper section is not only kept free from Water, but is enabled to be superheated, so as to evaporate any possible water which might be held in suspension therein. I have found by experience that the closed water-tubes 33 do not get overheated nor clogged with dirt, because the high heat to which they are subjected causes the water to be continually circulated through them, passing down through the center and up around the sides, and this circulation is so rapid as to prevent any dirt settling at the lower ends and keeping them clean and bright interiorly. \Vhen the boiler is taken apart, these tubes may be readily replaced when worn out. The lower section of the boiler may be cleaned through one or more suitable handholes 55, as usual.

While I have shown in the accompanying drawings the preferred form of my invention and have illustrated it as applied to boilers of the vertical type, it will be understood that, broadly speaking, the main features of the invention, especially that feature which relates to the water-tube located within the fire-tube, may be applied to any type of boileras, for instance, those having horizontal or oblique tubes-and other changes may be made which will not interfere with the principle of'my invention, and I therefore do not limit myself to the precise form shown nor to the details as described, for these may be changed in form or position without affecting the operativeness or the utility of my invention, and I therefore reserve the right to make all such modifications and'such as lie within the scope of the following claims or of mechanical equivalents to the structures set forth therein.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A boiler comprising a cylindrical watersection having parallel fire-tubes connecting the heads thereof, a cylindrical steam-section located above said water-section, a series of fire-tubes coaxial with said first-named tubes and connecting the heads of said steam-section and a series of connections between said sections whereby the tubes of said water-sections are completely surrounded by waterand the level of the water stands at a point within the said upper section.

2. A steam boiler comprising a vertical lower or water section adapted to be completely filled with water, a series of fire-tubes joining the heads thereof, a steam-section above said water-section, a series of fire-tubes coaxial with said first-named tubes joining the heads of said steam-section, and a series of water connections joining the adjacent heads of the water and steam sections.

3. A steam-boiler comprising a closed cylindrical vertical drum having upper and lower heads, a series of separate cylindrical water-tubes depending from secured to and supported by the lower head of said drum and having closed lower ends, and a series of fire-tubes connecting the two heads of said drum.

4. A steam-boiler comprising a lower upright water-drum having horizontal upper and lower heads, a series of fire-tubes connecting said heads, a second drum of equal diameter located above said lower drum, an independent series of fire-tubes connecting the heads of said upper drum, and a series of water-tubes depending from the lower head of said upper drum and passing through the fire-tubes of said lower-drum.

5. A steam-boiler comprising a lower upright water-drum having horizontal upper and lower heads, a series of fire-tubes connecting said heads, a second drum of equal diameter located above said lower drum, an independent series of fire-tubes connecting the heads of said upper drum, a series of water-tubes depending from the lower head of said upper drum and passing through the fire-tubes of said lower drum, and an'inclosing wall connecting the lower head of the upper drum with the upper head of the lower drum, whereby to form a combustion-chamber between them.

6. A steam-boiler comprising a vertical Water-drum having horizontal upper and lower heads, a series of fire-tubes connecting said heads, an upper vertical steam-drum above said water-drum andof equal diameter therewith and having also horizontal upper and lower heads, a series of fire-tubes connecting the heads of said steam-drum, and a series of tubular bolts at different radial distances from the center connecting the upper head of the lower drum with the lower head of the upper drum whereby to maintain the circulation of water between the two drums.

7. A steam-boiler comprising a vertical water-drum having horizontal upper and lower heads, a series of fire-tubes connecting said heads, an upper vertical steam-drum above said water-drum and of equal diameter therewith and having also horizontal upper and lower heads, a series of fire-tubes connecting the heads of said steam-drum, a series of tubular bolts connecting the upper head of the lower drum with the lower head of the upper drum whereby to maintain the circulation of water between the two drums, and a series of Water-tubes having closed lower ends depending from the lower head of the upper drum through and concentric with the fire-tubes of the lower drum.

8. A steam-boiler comprising a vertical water-drum having horizontal upper and lower heads, a series of fire-tubes connecting said heads, an upper Vertical steam-drum above said water-drum and of equal diameter therewith and having also horizontal upper and lower heads, a series of fire-tubes connecting the heads of said steam-drum, a series of tubular bolts connecting the upper head of the lower drum with the lower head of the upper drum whereby to maintain the circulation of water between the two drums, a series of water-tubes having closed lower ends depending'from the lower head of the upper drum through and concentric with the fire-tubes of the lower drum, and an inclosing wall connecting the walls of the two drums, whereby to form an i'nclosed combustion-chamber between the two drums, substantially as described.

9. A steam-boiler comprising an upright cylindrical lower drum having a fire-chamber formed at the lower end thereof, a crown-sheet closing the lower end of said drum above said fire-chamber, an upper tube-sheet closing the upper end of said drum, a series of fire-tubes connecting said crown and upper tube sheets, a cylindrical steam-drum of equal diameter to said water-drum and located above the same, said drum having also parallel upper and lower tube-sheets inclosing it, an independent series of fire-tubes connecting the two sheets of said steam-drum, and a cylindrical intermediate belt inclosing the space between the two drums, whereby to form a combustion-chamber.

10. A steam-boiler comprising an upright cylindrical lower drum having a fire-chamber formed at the lower end thereof, a crown-sheet closing the lower end of said drum above said fire-chamber, an upper tube-sheet closing the upper end of said drum, a series of fire-tubes connecting said crown and upper tube sheets, a cylindrical steam-drum of equal diameter to said water-drum and located above the same, said drum having also parallel upper and lower tube-sheets inclosing it, an independent series of fire-tubes connecting the two sheets of said steam-drum, a cylindrical intermediate belt inclosing the space between the two drums, whereby to form a combustion-chamber, and a series of tubular bolts removably connecting the adjacent heads of the two drums and permitting the circulation of water therethrough.

11. A steam-boiler comprising an upright cylindrical lower drum having a fire-chamber formed at the lower end thereof, a crown-sheet closing the lower end of said drum above said fire-chamber, an upper tube-sheet closing the upper end of said drum, a series of firetubes connecting said crown and upper tube sheets, a cylindrical steam-drum of equal diameter to said water-drum and located above the same, said drum having also parallel upper and lower tube-sheets inclosing it, an independent series of fire-tubes connecting the two sheets of said steam-drum, a cylindrical intermediate belt inclosing the space between the two dru ms,whereby to form a combustionchamber, a series of tubular bolts removably connecting the adjacent heads of the two drums and permitting the circulation of water therethrough, said upper sheet of said upper drum having a series of orifices therein immediately over the ends of said tubular bolts, and a series of plugs closing said orifices.

12. A steam-boiler comprising an upright cylindrical lower drum having a fire-chamber formed at the lower end thereof, a crown-sheet closing the lower end of said drum above said fire-chamber, an upper tube-sheet closing the upper end of said drum, a series of fire-tubes connecting said crown and upper tube sheets, a cylindrical steam-drum of equal diameter to said water-drum and located above the same, said drum having also parallel upper and lower tube-sheets inclosing it, an independent series of fire-tubes connecting the two sheets of said steam-drum, a cylindrical intermediate belt inclosing the space between the two drums, whereby to form a combustionchamber, a series of tubular bolts removably connecting the adjacent heads of the two drums and permitting-the circulation of water therethrough, and a secondary combustion-chamber or smoke-chamberinclosing the upper end of said upper drum and connect ing it with a stack.

13. In a steam-boiler, the combination of two cylindrical drums of equal diameter, pipes operatively and removably connecting the two drums and permitting the passage of water and steam between them, and a removable connection comprising a pair of annular plates one within the other arranged to telescope over the cylindrical walls of the two drums, substantially as described.

14:. A steam-boiler comprising a cylindrical water-drum adapted to be completely filled with water, and having upper and lower horizontal tube-sheets, a fire-chamber formed in the lower end of said drum andv surrounded by a water-leg, an upright cylindrical steamdrum of equal size with said water-drum and having upperand lower horizontal tube-sheets inclosing it, said steam-drum being mounted above and coaxial with said Water-drum and separated therefrom by a short intervening space, one or more independent tubes or flues connecting the two heads of each drum, an annular belt comprised of one or more concentric plates adapted to telescope over the adjacent ends of the two drums to tightly inclose the space between them, a series of short straight tubular connecting-bolts connecting the adjacent heads of the two drums, and an upper conical smoke-box inclosing the upper end of said upper drum and connected with the stack. a

15. Asteam-boiler com prising a cylindrical water-drum adapted to be completely filled with water, and having upper and lower horizoutal tube-sheets, a fire-chamber formed in the lower end of said drum and surrounded by a water-leg, an upright cylindrical steamdrum of equal size with said water'drum and having upper and lower horizontal tubesheets inclosing it, said steam-drum being mounted above and coaxial with said waterdrum and separated therefrom by a short intervening space, one or more independent tubes or flues connecting the two heads of each drum, an annular belt comprised of one or more concentric plates adapted to telescope over the adjacent ends of the two drums to tightly inclose the space between them, a series of short straight tubular connectingbolts connecting the adjacent heads of the two drums, an upper conical smoke-boxinclosing the upper end of said upper drum and connected with the stack, a series of removable nuts mounted on the upper ends of said connecting-bolts, a series of plugs mounted in apertures in the upper sheet of said steam-drum coaxial with said tubular bolts, whereby to permit the insertion of a socketwrench for turning said nuts, and a series of straight water-tubes connected with and depending from the lower head of said steamdrum through and coaxially with the fines or tubes of said water-drum and closed at their lower ends, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

ROBERT MCKAY. WVitnesses:

J. A. MARION, T. MYNARD.