Glue-heater.

Application filed July 24, 1909. Serial No. 509,414.

To dll whom it may concern:

Be it known that I, Charles M. Zimmerman, a citizen of the United States, residing at Cincinnati, in the county of Hamil5 ton and State of Ohio, have invented certain new and useful Improvements in GlueHeaters, of which the following is a specification.

My invention relates to devices for melt10 ing glue by the direct application of steam, and means for keeping the melted glue of a uniform temperature.

By the old method of applying either live or dry steam to glue in jacketed kettles for 15 the- purpose of heating the glue, much injury is done, in many cases the fibers of the glue being destroyed, and it is the purpose of my invention to eliminate all such disadvantages in such a manner as will 20 be hereinafter set forth.

Another object of my invention is to provide a simple and inexpensive means for keeping glue warm without the direct application of steam and at the same time 25 provide hot water which is constantly required and is an essential element in a glue room.

A further object of my invention is to provide means for keeping glue at a uni30 form temperature after said glue has been melted, by utilizing the hot water caused from the condensation of the steam in the glue melting apparatus.

With these objects in view, I provide a 35 glue melting apparatus, a. separate and distinct heating receptacle and a pipe connecting said glue melting apparatus with the glue heating receptacle. I also provide certain other parts and combinations of 40 parts as herein set forth.

In the drawing, the figure is a vertical section of the complete device.

In my preferred construction of the apparatus, 1 indicates an instantaneous glue 45 filtering converter, consistsing of a cylindrical jacket or kettle 2 having a lid or cover 3, and legs or stand 4. Placed inside of the jacket 2 and resting on the flange 5 at the top of the jacket 2 is another jacket or 50 casing 6, with perforated bottom 7, on which the soaked glue is placed. I provide a pipe 8 through, which steam passes with apertures properly placed therein to allow the steam to pass up into the glue, 55 thereby melting it. As the glue is melted, it drops down through the openings in the perforated bottom 7 into a catch pan 9 and is carried away by a pipe 10 and deposited into a jacketed receptacle 11, said receptacle resting on the top of the jacket 12 and the 60 jacket 12 in turn resting on supporting table 13. From receptacle 11 the glue may be dipped as it is needed. I provide a pipe 14 connected to the jacket 2 at one end and to the bottom of the jacket 12 at the other. 65 The purpose of this pipe is to provide means for allowing the hot water caused from the steam becoming condensed as it comes in contact with the outer walls of the glue filtering converter 1 to flow into the water 70 jacket or reservoir 12. As the jacket 12 becomes filled with said hot water, it heats the jacketed glue receptacle 11 which in turn heats the glue which has been deposited therein and keeps same warm and at a uni- 75 form temperature. In case the condensation of steam is of too great a volume for the jacket 12 to hold, I provide an overflow pipe 15. In shops where glue is used extensively, hot water is a most essential ele- 80 ment. Therefore, I provide a faucet 15^ain the jacket 12 in order that workmen may conveniently obtain hot water for their individual glue jackets from the water jacket 12.

In case the condensation of steam is of 85 insufficient volume to supply the jacket 12 with the required amount of hot water I provide an auxiliary supply pipe 16 through which I may add as much hot water as is necessary to maintain the proper tempera- 90 ture. For instance, when the apparatus is first put into operation it may be desired to first fill the jacket 12 with hot water and thereby prepare the receptacle 11 for immediate use. 95

There are various ways in which my invention might be modified without departing from its spirit and scope, and I do not wish to be confined to the exact detailsshown. 100