A method and apparatus for determining and indicating the flame quality, or efficiency of the air-fuel ratio, in a fixed firing rate heating unit, such as an oil burning furnace, is provided. When the flame brightness falls outside a preset range, the flame quality, or excess air, has changed to the point that the unit should be serviced. The flame quality indicator output is in the form of lights mounted on the front of the unit. A green light indicates that the flame is about in the same condition as when the burner was last serviced. A red light indicates a flame which is either too rich or too lean, and that servicing of the burner is required. At the end of each firing cycle, the flame quality indicator goes into a hold mode which is in effect during the period that the burner remains off. A yellow or amber light indicates that the burner is in the hold mode. In this mode, the flame quality lights indicate the flame condition immediately before the burner turned off. Thus the unit can be viewed when it is off, and the flame condition at the end of the previous firing cycle can …

Patent for a casing spear, "to remove casing within a well or removing a tool which may be dropped within the casing," with accompanying illustrations of the patent.

Patent for a new type of fishing float with "ferrules or caps" (line 18) on the ends to prevent water from getting into the float, causing it to decay, including illustrations and instructions.

Patent for an insect-collecting attachment for cultivators and similar equipment, with an illustration. The attachment is designed to "shake loose the insects from the plant and to collect said insects for removal and destruction." (lines 16-18). Specific plants that are ridden with insects are particularly difficult to remove, hence the creation of this attachment which will shake the stems of the plants, dislodge the insects and collect them in a receptacle.

Patent for caliper style measuring instrument which may be used as a micrometer. This measuring instrument features legs that may be used for measuring the inside or outside dimensions of an object.

Patent for a folding milking device that prevents a cow from kicking over the milk bucket, from kicking the milker, and from switching the milker's face with its tail, including illustrations.

Patent for oil cup for wagon wheels that enables the lubrication of the wheels without the need of removal.

Patent for a plow hitch mechanism created by J. Butler and assigned by Parlin & Orendorff Company of Canton, Illinois with accompanying illustrations.

Patent for a new and improved process of distilling oil by inventor James E. Biggins.

Patent for a new, less expensive razor strop holder with a reversible strop, including illustrations.

Patent for wheels for automobiles which are resilient by introducing a cushioned and floating hub between the hub and the rim.

Patent for vehicle signal with accompanying illustrations.

Patent for a wrench that can hold round-headed fastening elements (bolts) so as to prevent from turning in the same direction. The wrench can be held while the jaws grip and hold the round heads of bolts.

Patent for a reusable comb cleaner which is cheap to produce.

Patent for a railway car door that is designed to assist with loading and unloading of grain

Patent for an automatic switch indicator. This invention is designed to "prevent accidents resulting from misplaced switches, due to the carelessness of the railroad employees or the inability of the engineer to see the customary track-signals" (line 14-19). Illustrations included.

Patent for an oar facing the bow side of the craft. The invention allows for the rower to sit facing the direction of movement of the boat and be able to apply greater amounts of exertion. Illustration included.

Patent for a corn harvesting machine. "This invention relates to corn-harvesting machines of that class which are provided with cutting apparatus for severing stalks, with carrying apparatus for conveying the stalks in a standing or upright position to the point of discharge, with binding apparatus for tying the stalks into bundles" (lines 8-14). Illustration included.

Patent for a double row planter carriage. Illustrations included.

Patent for a revolving kitchen cabinet. This invention is an adapted improvement to create economize space and save time in food preparation of food. Illustrations included.

Patent for rocking chair. Illustration included.

Patent for a signal lock for mail boxes. This "invention relates to devices for locking the signals used on house letter-boxes, and has for its object the provision of a signal lock secured to the inside of the mail-box" (lines 9-13). Illustrations included.

Patent for a crustacea trap. This device is designed for use in catching crabs, lobsters, and other crustacea. Illustrations included.

Patent for a wagon body lifter. Illustration included.