Gold Dredges New Zealand

By the 1890s Dunedin was at the forefront of gold-dredge design and it was not long before New Zealand-style dredges were being successfully used overseas. Boom years. Over the next 20 years hundreds of dredges recovered tens of thousands of ounces of gold from the beds of Otago's rivers and old river channels. ... New Zealand's total gold ...

From Auckland Libraries: Showing an old dilapidated gold dredge near the Buller River on New Zealand's West Coast, an area where gold dredges operated to a limited extent from the 1890s to around 1911, hampered by patchy returns and damage from floods. Masses of dead vegetation appear caught up high in the framework of the dredging arm.

Gold winning by bucket dredge is a New Zealand development that began in Otago. Gold dredging in the Clutha River [circa 1905], Ref; 1/2-019707-F, Alexander Turnbull Library, Wellington, New Zealand. By means of dredges, …

Gold dredging - New Zealand - Otago Region. Favourite. There are 14 related items to this topic ... Physical Description: Mottled black exercise book, entitled `Photographs. Dredges. Sluicing. Machinery. New Zealand. Australia'; 35 x 23 cm Provenance: Purchased from American Book Service, 1975. Favourite. Image. Burton brothers album 16. Date ...

What New Zealand acquired was a tidal wave of gold seekers, bringing with them a morass of rowdy democracy, ... Taramakau and the Rimu with steam-powered and electric-bucket dredges up until the 1950s. As one old-timer lamented, "the companies and engineers had turned those honourable, enterprising fellows into a labourer, more's the pity

The first successful gold dredge in New Zealand was built in 1894 in the Grey River, West Coast. It was the first of many dredges that would be used to extract gold from New Zealand's rivers and streams. Dredging technology continued to improve throughout the 20th century, with larger and more powerful dredges being developed.

Date: Between 1923 and 1928 From: Moore, Robert Percy, 1881-1948 :Panoramic photographs of New Zealand Reference: Pan-2257-F Description: Panoramic view looking down from the Rimu Gold Dredge over a wide swathe of river shingle in the centre of the image. Small portion of the dredge visible in the left and right foregrounds. Native forest all around the river banks, …

New Zealand has three main goldfields and each has its own geology. In Otago (and Marlborough) gold is found in quartz veins in schist and in river gravels which have weathered from schist. On the West Coast and at Golden Bay, gold is found in older Paleozoic greywacke and argillite rocks in ...

Other companies also manufactured variations of the New Zealand and California model gold dredges, including the Bucyrus Foundry and Manufacturing Company. Bucyrus started manufacturing rail and mining cars and machinery in 1882, then steam shovels, and in 1883, its first dredge (Williamson and Meyers 1955, 32). (Fig. 5).

Articles and information about the Gold rushes in Victoria, Australia and, New Zealand; including Gold Dredges around Alexandra Central Otago, New Zealand. A page for other web site links has been added. Our aim is to increase the interest in troy weights and gold scales in particular here in the Southern Hemisphere. Most importantly it is to ...

Reference: New Zealand Mirror, No. 7, 1951 . This item is licensed under a ... Wow they don't make gold dredges like that anymore, reminds me of a nz postcard with a bucket dredge on it, wonder if it's the same one.. Does anyone know what …

powered "New Zealand"-type dredges, with three-cubic-foot buckets, each with a capacity of one thousand cubic yards per day. These were the third and fourth dredges constructed by the Risdon Iron '(forks-the first two were employed in California-and were known in Breckenridge as the Risdon No. 1 and Risdon No. 2 dredges.

One of the most practical and enduring methods of gold prospecting involves the use of the Sluice Box, a piece of gold prospecting equipment that has been in continuous use for over a hundred years. Amazingly one of the very best gold mining devices on the market today is still the traditional hand or stream sluice box.

California style dredges in New Zealand. Rimu Gold Dredge, Rimu Flat, Hokitika / Margaret Mort. Rise and demise : operations of Austral New Zealand Mining Ltd. at Lowburn, Central Otago, 1940-1952 / John Barry and Royden Thomson. Large-scale bucket ladder dredges of the Grey Valley, West Coast, New Zealand / M.H. Pizey -- Group 6.

Gold dredges were used in New Zealand from the 1860s, although the earlier dredges were of primitive design and not very successful. [2] Much of the New Zealand dredge technology was developed locally. [3] The first really successful bucket dredge for gold mining was that of Choie Sew Hoy, also known as Charles Sew Hoy, in 1889. This dredge was ...

To Dredge for Gold you need a Gold Dredge. This is a machine on pontoons that has a water pump and sluice box on it. A suction hose is run from the gold dredge to the riverbed where the operator…

Date range estimated partly on dates that dredges were known to be operating. Arrangement: Negatives housed at 1/2-062522 to 062553, and also includes those in the vicinity of 1/2-062625 and 1/2-062630 Quantity: 1 album(s) Album(s). Physical Description: Mottled black exercise book, entitled `Photographs. Dredges. Sluicing. Machinery. New Zealand.

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The history of gold dredging in New Zealand, leading to the develop- ment of the `New Zealand Type' dredge is considered. Much of this infor- mation has come from contemporaneous …

Have a question about gold dredging or which suction dredge might be right for you? Call Gold Fever TOLL FREE: 1-888-985-MINE (6463) We have everything from lightweight portable 2" inch back pack dredges, highbanker/dredge …

Prospectors began using them in New Zealand in 1861. Dredges were first used in California during the 1849 California Gold Rush and quickly became popular worldwide as they proved their ... a placer mining machine that extracts gold from sand, gravel, and dirt using water and mechanical methods. The original gold dredges were large, multi-story ...

Operations of New Zealand style gold dredges. A New Zealand, and probably a world first : The construction and operation of the electrically powered Sandhills Dredge in the Upper Shotover …

Bucket-line gold dredges were first designed and placed in service in New Zealand in 1882. By 1898, when gold dredging first Started in California, New Zealand had thirty-six bucket-line dredges of six cu­ bic-foot capacity. Soon thereafter, dredges were ex-ported from New Zealand to Australia and Siberia.

Ladder-bucket dredges are made in great numbers both in New Zealand and in Western America. A typical New Zealand dredge is shown in Figs. 10 and 11. These figures are from drawings supplied to the Department of Mines of New Zealand by Mr. F. W. Payne, of Dunedin. He also gave the following description of the plant.

an estimated two hundred of these dredges were deployed to and worked in the various areas in North America with gold-bearing ore, both in the Southern gold belt that stretches from Maryland to Georgia, throughout the West, notably California, Oregon, Idaho and Colorado, and in the gold regions of Alaska as well as in Canada's Yukon. Not favored

This conclusion is confirmed by the fact that all the dredges in the Australian and New Zealand gold fields are of this type, and a large number of them are successfully in use there. The elevator, or chain-bucket dredge, is not new; …

2.5" Dredge. This machine was a trend setter when it first came on the market and it continues to be one of our best sellers many years later. When other 2.5" dredges were floating on inner-tubes, required a suction nozzle for producing dredge vacuum, and had limited depth capabilities, the Proline 2.5" dredge sat on sturdy pontoons and used a power jet for dredge vacuum.

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Panning for gold is an activity that has captured the imagination of many people over the years. From the California Gold Rush of the mid-1800s to modern-day enthusiasts, the thrill of discovering precious gold nuggets in streams and rivers has driven people to spend countless hours searching for the elusive metal. The process of panning […]

Bucket-line gold dredges were first designed and placed in service in New Zealand in 1882. By 1898, when gold dredging first Started in California, New Zealand had thirty-six bucket-line dredges of six cu­ bic-foot capacity. Soon thereafter, dredges were ex-ported from New Zealand to Australia and Siberia.