US1274095A - Fire-polishing apparatus. - Google Patents

Description

M. A. SMITH. FIRE POLISHING APPARATUS.

APPLICATION TILED AUG. I7. 1916- RENEWED JUNE 17. I918.

1 ,274,095. Pateqted July 30, 1918. mmum 4 *evzilll/lllz w afmm Tut Noll": Finn: cm, wAsmuoran, n. 4.

N E STATES PATENT OFFICE. f

name A; MITH, OF emanates, PENNSYLVANIA.

x 'FIRE POLI'SHI'N APP-ARATUSIQ s ecification qt Least Patent? A plication mea'xu m 17, 1916, Serial No. 115',41a-.-Renewea June-17; 1 1a. -Seria1No. 240,5 23.-"

To all wkomit may concern:

Beit known that-I, MAURICE A. SMrrH, a citizen of the United States, and resident of Jeannette, in' the county of Westmoreland and State of Pennsylvaniayhave invented a new and useful Improvement in Fire-Pol.- ishing Apparatus; and-I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to fire-polishing apparatus;

My invention -relates more particularly to that type of -fire po'lishing .apparatus inwhich'airand gas-are delivered to' a burner, the combustion chamber being; soshaped as to direct the flame downwardly so as 'tofirepolish theinterior or exteriorof anarticle on the principleof'the-Qwens' Patent No. 628,027, July.4-, 1899, whereby a pressed cutglass blank is fire-polished upon. the interior to remove any defects or' imperfections caused by the action of the-plunger in pressing the glass in the mold.

The object of-myinvention is'to provide a simple form of apparatus by which thear ticle to be polished is quickly brought into position for polishing, and withdrawn therefrom and lifted from the support which holds it during the polishing operation, so that it may be conveniently removed therefrom.

In the accompanying drawing, Figure 1 is a plan view of my improved apparatus; Fig. 2 is a longitudinal section; Fig. 3 is a view of a portion of the apparatus where the article is supported in position to be polished on the exterior.

Referring to the drawing, the numeral 2 designates a suitable table or platform mounted on a frame 3, which in turn is preferably mounted on wheels 4 for convenience in transporting the device from one part of the factory to another.

A burner 5 of well-known construction is supported on the adjustable bracket '3 carried by the table 2. This bracket is secured to the slidable member 7 which telescopes with and is'adapted to move up and down on the post 8. The adjusting screw 9 is adapted to raise andlower the member 7 to bring the burner to the desired height according to the article to be operated on.

Air is supplied from the tank 10 located below the table in the .frame 3, said air being conducted by the pipe 11 to the burner where it is mixed with the gas introduced by the pipe- 12. The' construction ofthe burner 5 is such that the air'and. gaswhen ignited in the combustion. chamber, form a hot flame which is directed downwardly and confined within a comparatively small area. Resting upon the table 2 are the formers 13 and 14, the-former 13 being concave in form to receive correspondingly shaped arhole and the former14 is convex so as to re'-' ceive the articlewhen inverted for the purpose fully hereinafter set forth.

Theformers 13 and 14 haveeacha valveconnected to said frods by the links '20. The upper ends of the rods extend through open ing's-21 in the table-and said? rods are provided' with the collars 22"which rest on the shoulders 23 formed inthe table; p ro-iection 24 on the, upper end of the rod enters a recess 25 forinedfin the valve l5when the rod'and said valve are brought 1nto reglster with each other.

The formers 13 and 14 are provided with suitable handles 26 for moving said formers on the table.

The article to be fire-polished, which for illustration may be the bowl 27, after having been pressed and removed from the mold, is moved along the table in position to bring it under the burner 5. The hot blast is directed from the burner onto the interior of the bowl, while supported in the former and the fire-polishing action takes place. \Vhen this is completed, the operator moves the former 13 back along the table until the valve 15 is brought into register with the lifting rod 16 whereupon the operator-moves the lever 18 to lift the rod 16, and the upper end of said rod engaging said valve is lifted together with the bowl supported thereon to the position indicated in dotted lines Fig. 2. In this manner the bowl is quickly removed from the former and elevated in position for lifting and transferring to the former 14, where the exterior of the article is to be fire-polished, the bowl being inverted and supported on the frame 14 in the manner indicated in full lines Fig. 3. The former 14 is then moved over into position to be subjected to the action of hot blast, and is then withdrawn and brought into register with the rod 17 whereupon by operating the lever 18 the bowl is lifted by the rod to the position in dicated by dotted lines Fig. 3 to be removed therefrom and taken to the leer.

By my invention, while one bowl is being fire-polished the other is being removed from the former, and in this way one operator can manage two formers. All he has to do is to move the former under the blast, withdraw it therefrom, and by operating the lifting lever, the article is lifted from the former in convenient position to be taken away. 1

The movable valve orsection 15 not only provides for the lifting of the articles from the former, but at the same time opens up a passageway for the circulation of air through the former, thereby cooling the same and preventing its overheating.

What I claim is:

1. In fire-polishing apparatus, the combination of a suitable frame, a table, a hot blast device supported above said table, a former carried by said table and movable thereon, a movable central portion in said former, and lifting means detached from and adapted to register with said movable portion.

2. In fire-polishing apparatus, the combination of a suitable frame, a table, a hot blast device supported above said table, a

former carried by said table and movable thereon, a movable central ortion in said former, a lifting rod detadlied from and adapted to register with said movable por tion, and means for raising said rod.

8. In fire-polishing apparatus, the combination of a suitable frame, a table, a hot blast device supported above said table, a former carried by said table and movable thereon, a movable central portion in said former, a lifting rod passing up through an opening in said table detached from and adapted to register with said movable portion, and means for lifting said rod.

4. In a fire-polishing apparatus, the combination of a suitable frame, a table, a hot blast device supported above said table, a former carried by said table and movable thereon, a movable central portion in said former, a lifting rod extending up through an opening in said table and normally be low the level of said table, said rod being detached from and adapted to register with said movable portion, and means for lifting said rod. 7

In testimony whereof I, the said MAURICE A. SMITH, have hereunto set my hand.

I MAURICE A. SMITH. Witnesses:

I. BEULCKE, E. B. STERN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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