UNITED STATES PATENT OFFICE.
WARREN MOARTHUR, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE R. E. DIETZ
     COMPANY, OF NEW YORK, N.Y., AND THE STEAM GAGE AND LANTERN
     COMPANY, OF SYRACUSE, NEW YORK.
                                       TUBULAR LANTERN.
        SPECIFICATION forming part of Letters Patent No. 465,598, dated December 22, 1891.
                            Application filed March 5, 1891, Serial No. 383,828, (No model.)
    To all whon, it may conce7n: ,                            tral collare, through which the neck of the oil- 5o
       Be it known that I, WARRENMICARTHUR, a                 fount projects upwardly into the air-chamber.
    citizen of the United States, residing at Chi                F represents a filler which is secured to the
    cago, in the county of Cook and State of Illi             top of the glass fount, and which projects up
  5 nois, have invented a new and useful Improve              wardly through an opening in the metallic
    ment in TubularLanterns, of which the follow              top plate E. This opening is preferably made 55
    ing is a specification.                                   somewhat larger than the filler, so that the
       This invention relates to improvements in              approach of the oil-level to the base of the
    the oil-fount and connecting parts, and has               filler can be more readily observed as the
To for its object to provide the lantern with a               fount is being filled. The metallic top plate
    glass oil-fount which is exposed all around its           E is provided with a depending marginal 6o
    sides, so that its contents can be readily ob             flange g, which embraces the top portion of
    Served.                                                   the glass fount and prevents lateral displace
       In the accompanying drawings, Figure 1 is              ment of the plate on the fount. This flange
I5 an elevation of the lower portion of a tubular             is preferably beaded, as shown, to stiffen the
    lantern provided with my improvements. Fig.               edge of the top plate and form a smooth finish. 65
    2 is a vertical section at right angles to Fig.              H represents a metallic bottom, which is ap
    1 and in line acac. Fig. 3 is an elevation at             plied to the bottom of the glass fount and
    right angles to Fig. 1. Fig. 4 is a side eleva            provided with a depression in which the bot
2 o tion of the lower corner of one of the air                tom of the glass fount is seated, so that these
    tubes provided with a notched seat for the                parts cannot change their relative positions 7 O
    brace. Fig. 5 is a similar view showing a                 laterally.
    slightly-modified construction of the seat.                  I represents braces, which are attached with
    Fig. 6 is a perspective view showing a modi               their lower ends to the metallic bottom and
25 fied construction of my invention.                         with their upper ends to the tubular lantern
       Like letters of reference refer to like parts          frame. These braces are preferably Con- 75
    in the several figures.                                   structed of wire, as shown in the drawings,
       A represents the upright portions of the               each brace being bent of a single length of
    air-tubes; C, the lower horizontal branches               wire in the form of an elongated loop, which
3o thereof; B, the air-chamber with which these               is secured with its lower ends to the metallic
    branches communicate, and C the burner                    bottom by soldering or otherwise, while its 8o.
    cone resting on the air-chamber.                          upper horizontal bar or portion is seated in
       D represents the glass oil-fount, provided             notches or recesses formed in the Outer sides
    in its top with a central neck, in which the              or backs of the upright portion of the air
35 burner is seated. This neck is provided with               tubes. When it is desired to make the glass
    a metallic burner-seat d, which is fastened in            fount detachable, so that it can be removed 85
    the open upper end of the neck by cement or               in case of breakage, the braces are, simply
    by a screw-thread, or both. As shown in Fig.              sprung with their upper horizontal bars into
    2, the neck is provided with an external screw            these notches, while when a permanent at
4o thread and the burner-seat is provided with                tachmentis desired the braces can be soldered
    an outer overhanging flange, on which a screw             to the tubes.                                   9o
    thread is bent and which is screwed down                    J represents a guard-ring which encircles
    upon the neck, Suitable cement being prefer               the glass fount and is arranged about mid
    ably applied to the screw-threads of the neck             way between its top and bottom and at a
45 and flange.                                                short distance outwardly from the cylindrical
       E represents a top plate of tin or other               side wall of the glass fount. This guard- 95
    thin metal, upon which the air-chamber and                ring is preferably constructed of Wire and se
    the horizontal branches of the tubes are se               cured to the braces by clips or Solder. This
    cured, and which is provided with a short cen             guard-ring protects the glass fount, but does
   2                                            465,598
   not cover the fount sufficiently to interfere tom detachably with the lantern-frame, sub
   With the free observation of its contents.    stantially as set forth.
       When the braces are detachably secured to      2. The combination, with the tubular-lan
   the tubes, the glass fount can be removed from
                                                tern frame, of a glass fount on which the
 5 the metallic top plate and from the metallic frame rests, a bottom applied to the under 35
   bottom upon springing the braces out of the  side of the fount, and braces secured with
   notches of the tubes. The horizontal top     their lower ends to the bottom and engaging
   bars of the braces close the notches in the  with their upper ends removably in seats in
   tubes Sufficiently to prevent the ingress andthe tubes of the frame, substantially as set
 O egress of air to and from the tubes through  forth.                                            4o.
   these notches; but, if desired, the tubes need  3. The combination, with the lantern-frame,
   not be notched, and separate seats K for the of a glass fount, a topplate secured to the lower .
   braces can be secured to the backs of the    portion of the frame and embracing the top
   tubes, as represented in Fig. 5. The metallicof the glass fount, a separate bottom applied
   top plate can be dispensed with and the glassto the under side of the fount, and a guard- 45
   fount can be held against lateral displacement
                                                ring arranged between said bottom and top
   on the air-chamber and the lower branches of plate and surrounding the fount at a distance
   the tubes by providing the top of the glass  from its side wall, substantially as set forth.
   fount with ribs L., which bear against the sides
                                                  4. The combination, with the lantern-frame,
   of the tubes and air-chamber along the lower of a glass fount, a bottom applied to the un
   portions thereof, as represented in Fig. 6.  der side of the fount, braces connecting the
   The tubes and air-chamber form the lower bottom with the lantern-frame, and a guard
   part of the lantern frame, against which the ring secured to the braces, substantially as
   glass fount is held by the metallic bottom set forth.
   and the braces.                                Witness my hand this 26th day of February, 55
     I claim as my invention                    1891.
     1. The combination, with the lantern-frame,                   WARREN MICARTHUR.
   of a detachable glass fount upon which the         Witnesses:
   lantern-frame rests, a bottom supporting the           JOS. LUDES,
3o glass fount, and braces connecting said bot            G. C. MCARTHUR.