An exercise device includes a right and a left belt part arranged in connection with the right and the left pedal part. The belt parts are arranged to travel as an endless loop around sheaves. A right and a left rod part, each has a first end and a second end. The right footrest is fastened to the right belt part and the left footrest to the left belt part. The first end of the right rod part is fastened to the right belt part and the second end is pivoted to the frame structure. The first end o...

A method wherein a sour natural gas stream can be treated to produce formaldehyde from methane and methyl mercaptans, (primarily methanethiol (CH.sub.3 SH) and a small amount of dimethyl sulfide (CH.sub.3 SCH.sub.3)) from hydrogen sulfide, and the methyl mercaptans preferably are passed in contact with a catalyst comprising a supported metal oxide or a bulk metal oxide in the presence of an oxidizing agent and for a time sufficient to convert at least a portion of the methyl mercaptan to formald...

A method wherein a gas stream containing hydrogen, a carbon oxide and hydrogen sulfide is first passed in contact with a catalyst comprising a porous alumina supported sulfided metal selected from the group consisting of molybdenum (Mo), chromium (Cr), tungsten (W), manganese (Mn), nickel (Ni), iron (Fe), zinc (Zn), cobalt (Co), copper (Cu), tin (Sn), vanadium (Va) and mixtures thereof, optionally promoted by an alkali metal sulfide, to convert said hydrogen, carbon oxide and hydrogen sulfide to...

The present invention provides a frame that supports a pair of simulator skis above a floor surface. Rear ski ends are pivotally mounted to a rear ski support in rolling contact with a track surface on a rear frame portion. Front ski ends are pivotally mounted to a front ski support in rolling contact with the floor surface. Non-parallel, equal length bars are disposed on opposite sides of the pair of skis, extending from rear bar ends pivotally mounted to the base to front bar ends pivotally mo...

A variable stride exercise apparatus is described. The apparatus may include a frame. A crank system may be coupled to the frame. The crank system may include crank rollers. In certain embodiments, arm links may be coupled to the frame. The apparatus may include foot members that travel in multiple paths. The foot members may be coupled to the arm links. The foot members may be coupled to the crank system through cam devices. The crank rollers may be located below the foot members such that at l...

An arm motion assembly for an exercise device includes a first link which is pivotally affixed to a frame portion of the exercise device at a first pivot point so as to be capable of reciprocal motion thereabout. The assembly includes a second link which is pivotally affixed to a second frame portion of the exercise device at a second pivot point separated from the first pivot point so that the second link is capable of reciprocal motion about the second pivot point. The assembly includes a conn...

A carriage for use in a reformer exercise apparatus is disclosed that has a pair of upwardly extending folding shoulder stops mounted thereto at one end and a headrest between the shoulder stops that extends outward from the carriage toward the head end of the frame. A pair of roller wheels at the head end and a pair at the foot end of the carriage support the platform. A single common axle supports the head end pair of rollers from the carriage, forms a pivot support for the folding shoulder st...

A treadle assembly of an exercise equipment including a mounting seat, a treadle, a bearing bracket. The mounting seat includes a supporting groove in the middle thereof and two indentations in the middle of both sides thereof. The treadle includes a rigid cylinder at the bottom thereof. The inside of the rigid cylinder is filled with soft filling material. A screw bolt is fitted in the middle of the soft filling material for securing the mounting seat to the treadle by fixing the screw bolt in ...

The invention is an exercise device comprising (i) a frame, (ii) first and second foot supports operably associated with the frame for traveling in a forward and backward direction along a closed loop path relative to a transverse axis defined by the frame, (iii) a means effective for sensing the direction of travel of the foot supports along the closed loop path as between the forward and the backward directions, and (iv) a means for automatically adjusting the stride length and/or stride heigh...

A treadmill includes a front leg frame and a connecting arm. The front leg frame has a front end pivoted to a support base. The connecting arm has a lower end pivoted to the leg frame. An upper end of the connecting arm is connected to a threaded sleeve connected telescopically to a motor-driven screw rod disposed at a top side of a tread base. A hydraulic telescopic unit is pivoted to the leg frame and the support base. When the threaded sleeve is driven by the screw rod, the tread base is incl...