Activity

Zig-zag! Mechanisms for the ultimate stitching.

Characters:

Helen Augusta Blanchard

Theme: Transmission and transformation of movement.

Competencies

Mathematical competence in science, technology and engineering

Personal, social and learning to learn competence

Subjects and year by Educational System

Spain > Technology and digitisation > 1st ESO > Troubleshooting process. Workshop tools and machines

Spain > Technology and digitisation > 3rd ESO > Troubleshooting process. Workshop tools and machines

Enunciation

<img title="Women's Legacy logo" src="//inclusion.womenslegacyproject.eu/images/LogoWL.svg" /><hr />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. &nbsp;
2. Pulleys.
3. Wheel handle.
<img style="display: block; margin-left: auto; margin-right: auto;" title="Pregunta 3" src="//inclusion.womenslegacyproject.eu/uploads/resume/attachment/973/Blanchart_pregunta_3.png" alt="Pregunta 3" width="479" height="445" />
Source: <a href="https://www.inventricity.com/helen-blanchard-inventor">https://www.inventricity.com/helen-blanchard-inventor</a> (29/03/2022)&nbsp;
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Observations and context

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.

Observaciones

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).

Description

Analysis of technological objects. Its main goals are:

- Identifying different mechanisms for movement transmission and transformation.

- Analysing the sewing machine invented by Helen Blanchard.

Zig-zag! Mechanisms for the ultimate stitching.

Enunciation

Observations and context

Description

Answer

Documents