Heinrich Brandenberger (engineer)

Heinrich Brandenberger

Heinrich Georg Brandenberger (born July 12, 1896 in Vienna , † August 10, 1964 in Zurich ) was a private lecturer at the Swiss Federal Institute of Technology in Zurich and a consulting mechanical engineer.

Life

Heinrich Brandenberger was born as the eldest son of Heinrich Brandenberger Sr. and Franziska Josepha Knoth, entitled to live in Winterthur ZH, and had 2 brothers (Wilhelm and Rudolf) and 2 sisters (Minna and Paula). On December 18, 1930 he married Dora Stierli from Dietikon ZH, in 1937 and 1942 birth of the sons Alfred and Walter.

Heinrich Brandenberger obtained a degree in mechanical engineering and a doctorate in technical sciences from the Technical University in Vienna . As early as 1919 at the age of 23, Heinrich Brandenberger, as a student at the Technical University in Vienna , had submitted a patent for the equipment on bevel gear planers for the production of helical teeth ( patent certificate no. 85983 of October 25, 1921 ). The spiral bevel gear planer was later manufactured by the Oerlikon machine factory in Zurich under the name "Spiromatic".

Heinrich Brandenberger's further professional career included:

• 1921–1924 head of the design office at the Oesterreichische Werke in Vienna.
• 1932–1939 construction engineer at Nova Werken in Zurich.
• 1928–1955 private lecturer with teaching position at the Swiss Federal Institute of Technology in Zurich for machine tools, workshop technology and transmission theory.
• 1940–1941 head of research at the machine tool laboratory of the Swiss Federal Institute of Technology (ETH) in Zurich.
• From 1941 owner of his own design office in Wipkingen near Zurich for machine tools, special machines and automatic machines.

Technical and scientific activity

Heinrich Brandenberger was the owner of numerous patents and published 5 specialist books (see below) as well as a large number of publications in specialist journals.

His primary field of activity and teaching included construction, machine tools, workshop technology, gear theory, gears and cutting.

Another subject area included materials testing and strength theory. He developed new foundations in the field of materials research, material testing and strength theory and developed a new theory on elasticity and strength (four main principles of elasticity and strength theory from elastic deformation to fracture) .

Heinrich Brandenberger was also a committed critic of Einstein's theory of relativity and published his “New Findings in Physics and Astronomy” in specialist journals.

Books

Tolerances, fit and construction

• Representation of the tolerances and their correct application in order to achieve suitable designs
• Construction in general, dimensional control, surfaces, surface accuracy, threads, roller bearings

Swiss printing u. Verlagshaus Zürich, 1946, 318 pages, 221 illustrations, 55 tables

New theory of elasticity and strength

• New principles of material testing and strength theory
• The flaw in the current theory of elasticity and how to remedy it
• New theory of deformation processes and stresses in solid bodies
• Calculation of the flow limit, the stress hardening and the permanent elongation in a simple tensile test

Schweizer Druck- und Verlagshaus, 1948, 216 pages, 65 illustrations, 6 tables

Construction suitable for production

• Introduction to the personal working technique of the designer
• Relevant aspects, rules and laws and the most important working methods used in industry are decisive for production-oriented design
• Workpieces made of cast iron, cast steel, malleable cast iron, cast aluminum and light metal, welded constructions, structural steel, structural strength, etc.
• Guidelines for checking the workshop drawings etc.

Schweizer Druck- und Verlagshaus Zürich, 1949, 404 pages, 692 illustrations, 64 tables

Kinematic gear models Miniatecnic

• Introduction to the basics of kinematics and gear theory
• Instruction book with 500 characteristics and tenets with over 280 illustrations
• Gear models as indispensable tools to illustrate the kinematics. Detailed construction drawings of the models for a detailed study of the structure of the individual gearboxes
• Moreover, every property is recorded as a proposition, in which every single thought appears as a special point.
• A new method that enables the most complicated relationships to be broken down into individual, simple findings that can be mastered and used with ease

Swiss printing and publishing house, 1955, 245 pages

Functional construction

• Findings, points of view, rules and laws about functional design
• Design of components and the structural development of devices

Swiss printing and publishing house Zurich, 1957, 341 pages

Individual evidence

1. ^ Patent certificate No. 85983 from October 25, 1921 ( PDF )
2. ↑ NASA publication, which Heinrich Brandenberger mentions on page 98 as the inventor and designer of the Spiromatic machines as follows: The Oerlikon company began early, in 1886, with the production of bevel gears by templates. Later developments are related to the names of inventors Brandenberger and Mamano and to Oerlikon-Bührle Company engineers who designed the Spiromatic machines and the head-cutters for them. ( PDF ( Memento of the original from December 29, 2006 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. ) 
3. ^ Biographical dossier Heinrich Brandenberger (1896-1964); PD for machine tools and gear engineering ETHZ [1]
4. ↑ Image archive of the ETH Library Zurich [2]
5. ↑ WorldCat; Publications database [3]
6. ↑ Details on the technical-scientific work [4]
7. ^ World Science Database; New findings in physics and astronomy [5]  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.  
8. ^ Special print Swiss machine market, 1962; New findings in physics and astronomy ( PDF )