thomas. Backhoe. June 04th , 2018.
With the advent of hydraulic powered attachments such as a tiltrotator breaker a grapple or an auger the backhoe is frequently used in many applications other than excavation and with the tiltrotator attachment serves as an effective tool carrier. Many backhoes feature quick coupler (quick-attach) mounting systems for simplified attachment mounting dramatically increasing the machines utilization on the job site. Backhoes are usually employed together with loaders and bulldozers. Excavators that use a backhoe are sometimes called "trackhoes" by people who do not realize the name is due to the action of the bucket not its location on a backhoe loader.
The patent for the first reversible seat was developed at Wain-Roy by Carroll Arnold and Vaino Holopainen and then filed by Vaino under patent #2784768 and in June 1954 Vaino filed patent # 2781927 for individually controlled outriggers. John S. Pilch of Ware Machine Works Ware MA developed the first 4-bar linkage to achieve greater bucket digging and dumping rotation. Pilch filed for patent #2678741 in September 1950. The 4-bar linkages were also used on the Wain-Roy backhoes after 1954.
The first and much more popular Case Corporation introduced their backhoes in 1957. The design of the Case backhoes from the straight arm boom assembly to the "Extendahoe" design which can extend the dipper from four to eight feet longer are all registered with the U.S. Patent Office along with the chassis design. JCB also brought their range of backhoe loaders tractors and other products to the North American market in 1960.
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