In most saws the teeth are "set," ie, bent a little, alternately, to one side or the other, to produce a cut (kerf) wider than the blade, thus avoiding binding.
The saw was used primarily to produce boards.
A pit saw, ie, a long blade with large teeth and a handle at each end, was employed. It was operated by 2 men the log was propped up at one end or extended over a pit. When boards were available, the handsaw was the most important tool for cutting. There are 2 kinds of handsaw: the crosscut saw, a smaller saw, with finer, pointed teeth, intended for cutting across the grain of the wood and the ripsaw, which has larger teeth with chisellike points, for cutting with the grain. The keyhole saw, used for cutting circular openings or curved edges, has a very narrow tapering blade. The tenon saw, a short wide blade with the upper edge reinforced with a metal bar, is used for making fine cuts at various angles.
#MEDIATUBE BELL CARPENTER PLUS#
NorthVu and MediaTube are seeking a minimum $350-million "royalty" for "past infringement" of the 477 Patent, plus other unspecified damages and costs and an injunction to prevent Bell and Bell Aliant from providing their IPTV services in Canada by using methods to redistribute audio and video signals that they claim are covered by the patent.Framed saws have narrow flexible blades, kept rigid by a springy bow (bucksaw) or a twisted rope stretched between extensions of the handle (bow saw). Lawyers for the two plaintiffs declined to provide comment on the case. "MediaTube continued to seek capital to commercialize its IPTV service, but this effort has been impeded severely by the fact that Bell Canada is providing the same service in Ontario and Quebec (its licensed territory) in competition with MediaTube." Since the launch of Bell Fibe, "MediaTube's business prospects diminished considerably," reads the court filing. (Bell Canada's parent company, BCE Inc., owns a 44 per cent stake in Bell Aliant.) Since it uses equipment similar to Bell Canada's, the plaintiffs allege that it too is infringing certain claims of the 477 Patent. "We believe the claim is without merit and intend to strongly defend that position."īell Aliant offers IPTV services in Newfoundland and Labrador, New Brunswick, Nova Scotia, Prince Edward Island and parts of northern Ontario. "We are confident the claim is without merit and will strongly defend our position in court," said Bell Canada in an e-mailed statement on Wednesday. None of the allegations has been proved in court. (Bell latersigned a confidentiality agreement with another company that was working with NorthVu to commercialize IPTV that company was acquired by MediaTube in 2009.)įollowing those years of collaboration, which included the use of Bell's telephone lines for a prototype IPTV system in Ontario, the plaintiffs claim Bell Canada launched its own service marketed as Fibe in Ontario and Quebec starting in September, 2010, infringing on their patent. The telecom later began "confidential discussions" with NorthVu in early 2004 after it acquired the technology. The suit alleges that Bell Canada first approached the patent's inventor, Ross Jeffery, with an "unsolicited request to discuss his work" back in 1999.
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