Location History:
- Heidelberg, DE (1987)
- Nussloch, DE (1989 - 1991)
Company Filing History:
2 out of 3 
1 out of 6 
1 out of 13 Years Active: 1987-1991
Title: Gustav Rohr: Innovator in Industrial Sewing Machine Technology
Introduction
Gustav Rohr is a notable inventor based in Nussloch, Germany. He has made significant contributions to the field of industrial sewing machines, holding a total of 4 patents. His innovative designs focus on enhancing the functionality and efficiency of sewing machines.
Latest Patents
One of Gustav Rohr's latest patents is a device for determining the angular position of the drive shaft in a position indicating device, particularly for industrial sewing machines. This device features a slotted wheel and a first track of slots that allows for null-point synchronization over a small range of rotational angles. It also establishes definite angular positions through a second track with slots of various widths. The first track is associated with two light barrier arrangements, while the second track is linked to one light barrier arrangement. Evaluating systems connected to the receivers determine the rotary angle position based on the number of slots and the size of the slots passing through.
Another significant patent is for an electric motor drive specifically designed for sewing machines. This drive allows for the needle to be reciprocated between upper and lower end positions by the sewing machine's main shaft. The drive is in direct connection with the main shaft and can be controlled at variable speeds through a control system. This innovation improves the dynamic performance of the sewing machine by incorporating an input switch for command pulses, enabling precise control over the movement of the drive.
Career Highlights
Gustav Rohr has worked with notable companies such as Frankl & Kirchner and Frankl & Kirchner GmbH & Co. KG Fabrik für Elektromotoren und Elektrische. His experience in these organizations has contributed to his expertise in developing advanced technologies for sewing machines.
Collaborations
Throughout his career, Gustav has collaborated with talented individuals, including Gerd Nohl and Thomas Schmidt. These partnerships have fostered innovation and the development of cutting-edge solutions in the sewing machine industry.
Conclusion
Gustav Rohr's contributions to the field of industrial sewing machines through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the efficiency and functionality of sewing technology.