Electro hydraulic dredge Snake Valley 1909. J Mc Bennett, was an engineer back at the main base, at Dawson's dam on the Carngham Road, Between Linton and Snake Valley. These dredges were used for getting gold. The streams of water under high pressure just washed the hills and ground away. This dredge closed down early 1910. 200 H.P. motors were used and 10 in. pumps.Black and white image of three workmen, one beside mining building the other two at dredge pump outlet. Image mounted on dark brown card. Between 1904 and 1911 the Electro Hydraulic Company sought to extract gold in an area north of Linton known as the Hard Hills. By blasting water from high-pressure hoses into the hillsides, soil containing gold was washed out for sluicing. Two gravel pumps in Dawson's Dam pumped the wash through the sluices. Despite considerable investment in expensive equipment, the Company did not have a great deal of success, and the mining operation ceased in 1911.mining, gold, mining equipment, electro hydraulic dredge, dredging, sluicing, dawson's dam, snake valley, miners

Black and white image of workmen at electro hydraulic dredge Snake Valley mine site. Image has been mounted on dark brown card. Electro hydraulic dredge Snake Valley Victoria 1909. J.M.C. Bennett was an engineer back at the main base, at Dawson's Dam on the Carngham Road, bet Linton and Snake Valley. These dredges were used for getting gold. The streams of water under high pressure just washed the hills and ground away. This dredge closed down early 1910. 200 H.P. Motors were used and 10 in. pumps.electro hydraulic dredge, dredging, sluicing, mining, gold, miners, mining equipment, snake valley

With the advent of audio content available through i-phones and other small devices, the demand for a dedicated audio, easily portable player for the blind and vision impaired became louder and louder. Two organisations competed to deliver this and Canadian company Humanware developed the Victor Stream. A portable hand-held device that could deliver audio content from SD card and was small enough to fit into a pocket or handbag. It could read a variety of formats, such as DAISY, MP3 and txt files, and had a built in voice recorder via the inbuilt microphone or an external one. As part of the trial to introduce new deliver mechanisms for audio content, the Stream was in demand as books could be downloaded directly to it and were aimed at those who were comfortable using the technology with minimal support.Black and silver rectangle with silver buttonsaudio equipment, assistive devices

Designed to create an impression on paper, the stylus allows users to create Braille through the applied use of pressure that creates a depression on one size of the paper and a raised dot on the alternative side. However sometimes mistakes were made and rather than re-emboss the whole page, a Braille eraser was sometimes used by flattening out indentation on card, one dot at a time.1 wooden piece with blunted tipbraille equipment, association for the blind

In 1932, Edward Thomas Both invented the first portable direct reading electro cardiograph. This item is a three lead electrocardiograph tracing conducted on one of Dr Angus' patients in 1939. Dr William Roy Angus (1901-1970) came to Warrnambool in 1939, purchasing the general practice of Dr John Hunter Henderson. He was the last serving Warrnambool Port Medical Officer. A health problem after the war prompted a change from general practice to ophthalmology. Dr. Angus became an important ophthalmologist , pioneering the use of the intrascleral cartilage implant which resulted in cosmetically better artificial eyes. He was an Honorary Consultant Ophthalmologist at Warrnambool Base Hospital for 31 years. He was Secretary of the Victorian South West sub-division of the Australian Medical Association from 1949 to 1956 and Chairman from 1956 to 1958. His obituary in the Medical Journal of Australia (July 1970) stated he was "dedicated and devoted to both his profession and his patients" .This item provides a link to an Australian invention of medical equipment which improved diagnosis and treatment of heart conditions in the 1930's. It is an example of diagnostic recordings used by a Warrnambool doctor in 1939.This is a card record of a three lead "Both" Electrogram. The upper one third has places for the date patient details and diagnosis. There are three electrocardiogram tracings over graph paper in the bottom two thirds of the item. The reverse side has a handwritten in ink interpretation of the tracings.Front: BOTH ELECTRO-CARDIOGRAM No. Date July 4th 1939 Rate 130 Name Age Diagnosis The patient name has been blacked out. Dr. Angus is printed in the top right hand corner. Rear: The P wave in lead 1 is broadened and notched, and has a suggestive "plateau" top. This may indicate a mitral stenosis, auricular hypertrophy. E Bannondr william roy angus, both electro-cardiogram, dr angus collection