Today in 1909, two patents were issued: US Patent 938577 A for “Process of Bottling Beer” and US Patent 938578 A for “Machine For Bottling Beer.” Both were patented by Rudolf Gull, and the drawings filed with each application are identical, except for the titles. There’s no Abstract for either patent, although in the description it includes this summary:
Patent 938577 A: Process of Bottling Beer
1. The improvement in the method of bottling beer consisting in maintaining in the bottles while they are being filled with beer, and independent of the flow of the beer, a higher gaseous pressure than on the surface of the suplly or column of beer with which the bottles are filled, and changing such hi her pressure at predetermined intervals during the time the beer is entering the bottles, substantially as set forth.
2. The improvement in the method of bottling beer consisting in maintaining successively in the bottles while they are being filled with beer two or more distinctly different gaseous pressures each one of which is successively maintained in a substantially constant proportion to the gaseous pressure on the column of beer, substantially as set forth.
3. The improvement in the method of bottling beer, consisting in maintaining in the bottles while they are being filled a higher gaseous pressure than that on the column of beer from which the bottles are filled, and in maintaining such higher gaseous pressure within the bottles at such a’ proportion to the gaseous pressure on the column of beer that the surplus of pressure in’ the bottle over the gaseous pressure on the column of beer balances the weight of the column of beer above the level of beer in the bottle as soon as the beer in the bottle reaches a predetermined level.
938578 A: Machine For Bottling Beer
Bottling the beer to flow from the tank into the bottles and permitting also the passage of air from the tank, above the beer, to the bottles, so as to have the same air pressure in both tank and bottles at or before the time the valves are opened, thus permitting the beer to flow by gravity from the tank into the bottles the height of the beer column above the end of the filling spout, the width of the filling spout and the size of the air vent through which the air escapes from the bottles when the beer enters regulating the flow of the beer into the bottles.
