Kathryn Knitwear Collection A Psychrometer is an instrument used to measure humidity using two thermometers, one of which is wet and one is dry. A similar example is housed at laboratoire d'histoire des sciences et des techniques (LHST). Inventory number 603.0509 Kathryn Knitwear, founded by Robert Blake, manufactured high quality children’s knitwear in Melbourne from the 1940s – 1980s. Robert Blake began manufacturing children’s knitwear in his bedroom in Strathmore using a hand powered machine in the late 1940s. The operation moved to Ascot Vale and Essendon, before eventually establishing a factory in Moonee Ponds in the early 1950s. The business continued to expand, necessitating a move to a new factory in Broadmeadows. By 1962, the Broadmeadows factory was producing an average of 20,000 garments per month, which increased to 24,000 by 1964. Robert Blake’s Son, Brendan recalls that “The Kathryn brand was famous around Australia, anywhere children needed to keep warm and dress smartly. It also won a number of wool fashion awards”, including the 1969 Wool Awards, which was held by the Australian Wool Bureau and published in Women’s Weekly. The Kathryn range was designed for durability, comfort and care, without sacrificing style. They used patterning techniques that increase stretchiness, comfort and fit, as well as integrating decorative elements into the fabric to prevent them from being bulky, uncomfortable or tight. Making longevity of style a priority, Brendan Blake remembers that “there was one particular garment that was in the range for at least thirty years”. He also recalls “In the past, when women have found out that I was associated with Kathryn Knitwear, they would often relate to me the story of a garment they had purchased or received as a gift and, when their child had grown out of it, they would hand it on to another child. Several ladies have told me of purchasing garments for their daughters’ glory box, or saving a particular garment after their daughter had grown out of it. Brendan Blake: “At the peak of their operation they employed approximately two hundred people, mainly women and girls. A family would often seek to send their daughter to work in this company because they knew they would be looked after and safe. One lady wrote to me telling me that working at the Moonee Ponds Factory prior to getting married was the happiest time of her life.” In 1963, workers at the Kathryn factory earned £13 per week, which was 8 shillings and 8 pence higher than the minimum weekly wage for female workers in the textile manufacturing industry (£12 11s 4d). By 1970, the Kathryn Knitwear brand expanded from children’s knitwear into womenswear under the brand name ‘Lady Kathryn’, and for boys and men under ‘Robert Blake’. Continuing to diversify their distribution, they also began exporting ‘Kathryn’ garments to New Zealand, the Pacific Islands, and Japan. ‘Kathryn Knitwear’ was well-known for their early adoption of modern materials and techniques that had broad appeal to their customer base. This is shown in their early use of the acrylic fibre ‘Orlon’ in the 50s and 60s and ‘Superwash’ wool in the 1970s. Many of Kathryn Knitwear’s styles, particularly those that were long running staples of the brand, were available in both wool and Orlon to suit the consumer’s preference. Far from the humble origins of one man in his bedroom with a hand-cranked machine; at its closure in 1980, the Broadmeadows factory of ‘Kathryn’ housed more than 100 machines, including 53 sewing machines and 45 knitting machines. Robert Blake was “a passionate advocate for wool and Australian Made” throughout his whole life. A strong thread that ties through the lifespan of Robert Blake and Kathryn Knitwear is a balance between adopting new innovations without sacrificing the core values of durability, comfort, care and style that had made the brand so well known. Their legacy forms an integral part of both Australian social and manufacturing history.Black metal measuring instrument with clear window to view gauge for displaying humidity. Reference table listing values for different fibres is printed in red and white on a black metal plate that is screwed onto the front of the psychrometer. The instrument is housed in brown leather case with zip. It includes a printed paper instruction book with black text and greyscale figures.psychrometer, measuring instrument, humidity, textile manufacturing, fashion textile production

Bushfire behaviour is influenced by many factors including temperature, relative humidity (RH), forest type, fuel quantity and fuel dryness, topography and even slope. Wind has a dominant effect on the Rate of Spread (ROS), as well as fire size, shape and direction. Temperature and relative humidity have major impacts on fuel dryness and therefore upon the availability of fuel for combustion. The amount of fine fuel available can increase rapidly from nearly zero when fuel moisture content is more than 16% after rain or a heavy morning dew, to many tonnes per hectare as fuel dries out later in the day and the moisture content drops below 9%. This explosive escalation in the amount of available fuel can happen over a few hours on hot and windy days. A sling psychrometer is a simple device for determining air temperature and relative humidity. It contains two thermometers, one of which is covered with a wick saturated with ambient temperature liquid water. These two thermometers are called dry bulb and wet bulb. When the sling psychrometer is spun rapidly in the air, the evaporation of the water from the wick causes the wet bulb thermometer to read lower than the dry bulb thermometer. After the psychrometer has been spun long enough for the thermometers to reach equilibrium temperatures, the unit is stopped, and the two thermometers are quickly read. A psychrometric scale on the side of the instrument is then used to convert the dry bulb temperature TDB and the wet bulb temperature TWB into humidity information. The wet bulb temperature is approximately equal to the adiabatic saturation temperature. The thermometers fold back into the plastic handle when not in use. Used to measure temperature and relative humiditySling PsychrometerBACHARACH INSTRUMENTS - Pittsburg PAbushfire, forests commission victoria (fcv)

Victorian Institute of Occupational Safety and Health (VIOSH) Australia is the Asia-Pacific centre for teaching and research in occupational health and safety (OHS) and is known as one of Australia's leaders on the field. VIOSH has a global reputation for its innovative approach within the field of OHS management. VIOSH had its first intake of students in 1979. At that time the Institution was known as the Ballarat College of Advanced Education. In 1990 it became known as Ballarat University College, then in 1994 as University of Ballarat. It was 2014 that it became Federation University. VIOSH Australia students are safety managers, senior advisors and experienced OHS professionals. They come from all over Australia and industry. Students are taught active research and enquiry; rather than textbook learning and a one-size fits all approach. VIOSH accepts people into the Graduate Diploma of Occupational Hazard Management who have no undergraduate degree - on the basis of extensive work experience and knowledge. Instrument used to determine the humidity in a location. Made in England by Brannan. Established in 1913, Brannan are a global manufacturer of thermometers, pressure gauges & associated instrumentation productsBrown leather case with brass clip. Wooden frame with thermometer tubes. Black handle used to swing meter around. Gauge for temperature scale Made in England. Brannanviosh, victorian institute of occupational safety and health, brannan, england, thermometers, pressure gauges, humidity hydrometer