Max Giese

Max Giese (* 1879 in Sigmaringen, † 1935 in Kassel; buried in Kiel ) was a German contractor and invented in 1928, the concrete pump. In Kiel, a street is named after him.

The invention

Shortcomings when dealing with the conventional casting tower brought 1927 the engineers Max Giese and Fritz Light on the idea to pump the concrete from the mixer directly to the point of use. It was especially important to keep the power consumption compared to the casting tower method to a minimum. The reduced water content of the concrete in the pumping process not only saved energy but also let the material quicker and firmer to set. Gravel or crushed stone material were used. Could be pumped up to 38 m in height and up to distances of 120 meters.

Business

Max Giese was also a founder of the Max Giese Bau GmbH, which developed into a major construction company, based in Kiel. Since 1951, the company produced precast concrete, in 1967 another factory was opened in Wankendorf. The production included initially mainly prestressed concrete poles and pre-stressed concrete piles. The piles were used as deep foundation elements and coastal protection for the construction of groynes. The masts were used as electricity, rail and lamp posts. 2003, the company had to file for bankruptcy.

Granted patents

The following patents, Max and Fritz Giese Light contact:

A method for conveying concrete to structures

Patent No. 553 060, December 25, 1927, published on June 2, 1932, claim:

A method for conveying concrete to structures in which the concrete is forced through piping from the mixer to the point of use, characterized in that the ready to use concrete flow to a feed pump and supplied therefrom in uninterrupted flow of the point of use.

Concrete mortar pump with seal wash

Patent No. 485 470 of 22 September 1928 published on 17 October 1929 claim:

1 concrete mortar pump with seal wash, characterized in that in order to free holding the intake and exhaust valves of Fördegut during the working strokes of the pump, the intake valve on the endigenden in the middle of the pumping chamber inlet port, the outlet valve on the projecting into the air chamber end of the connecting line from the pump room is located here.

2nd pump of claim 1 having between piston and cylinder the intended annulus, characterized in that the provided between the sealing ring compartment holds a measured amount of rinse water for piston and cylinder wall.

Patent rights abroad

The two patents were registered in the following countries or regions:

England, New Zealand, South Africa, British India, Egypt, Australia, France, Belgium, Switzerland, Italy, Spain, North America, Central America, South America, West Indies, Hawaii, the Philippines, Japan, the Union of Soviet Republics, Poland, Bulgaria, Austria, Hungary, Czechoslovakia, Yugoslavia, Romania, Norway, Denmark, Sweden and Others

Parallel developments

In Holland 1931 Mr Jacobus Cornelius Kooijman was on December 16 granted the patent No. 26113 for a concrete pump ( published February 15, 1932). When publishing the patents both parties had already manufactures and markets concrete pumps. Given the similarities of the inventions we adopted in June 1932 agreement on the joint use of patents by Giese / Light and Kooijman.

License rights

The engineers Giese and Hell has been granted licenses to their patents and pump your process patents to the following companies:

• 1931 Torkret mbH, Berlin, Germany
• From 1932 Société Allied maschinery Company SA, Almacoa, France
• From 1932 onwards, Chain Belt Company, Milwaukee, Wisconsin, United States

First use on construction sites

The concrete pump was first used at the following sites:

• Laboe naval memorial, pumping height 38 m
• Deutsches Haus ( Flensburg ), length of the pipe line 87 m

Prices of the concrete pump

In 1941, the concrete pump L7 cost under license from Torkret 12,600 Reichsmarks.

Further patent applications

Max Giese and Fritz Hell had the patents granted beyond the following patent applications:

• H.114 491 process for the production of concrete work, filed on December 23, 1928
• G. 76 658 device for supplying the material after concrete mortar feed pumps with reciprocating pistons, filed on June 11, 1929
• G. 76 937 method for the treatment of concrete, filed on July 11, 1929 or the like
• G. 77 807 pump for pumping mortar, concrete, filed October 30, 1929 and the like