Zig-zag! Mechanisms for the ultimate stitching.
Personajes:
Tema: Transmission and transformation of movement.
Competencias
Competencia Matemática, en ciencia, tecnología e ingeniería
Competencia Personal, social y de aprender a aprender
Materias y cursos por Sistema Educativo
España > Tecnología y Digitalización > 1º ESO > Proceso de resolución de problemas. Herramientas y máquinas de taller
España > Tecnología y Digitalización > 3º ESO > Proceso de resolución de problemas. Herramientas y máquinas de taller
Enunciado
Complete the following tasks using the pictures of Helen Blanchard's zig-zag stitch sewing machine as a reference.
Identify the parts of the machine:
1. Motor component.
2. Mechanism.
3. Receiving component.
Note which of the following types of movement occurs in a sewing machine:
1. Linear movement.
2. Alternate movement.
3. Circular movement.
Identify the mechanisms of movement transmission and transformation in the following picture:
1. Levers.
2. Pulleys.
3. Wheel handle.
Source: https://www.inventricity.com/helen-blanchard-inventor (29/03/2022)
Observaciones y contexto
Helen Blanchard in addition to invente the sewing machine, also invented a pencil sharpener. This same activity can be adapted to that invention to make it simpler.
We can link this invention and its inventor, Helen Blanchard, to other everyday inventions made by women in the late 19th and 20th centuries: the dishwasher (Josephine Cochrane), the hypodermic syringe (Letitia Geer), the coffee machine (Melitta Bentz), the disposable nappy (Marion Donovan), the lifeboat (Maria Beasley), the ink pen (Bette Nesmith Graham) or the windscreen wiper (Mary Anderson).
Descripción
Analysis of technological objects. Its main goals are:
- Identifying different mechanisms for movement transmission and transformation.
- Analysing the sewing machine invented by Helen Blanchard.