Headlight (Patent No: 301797)

Inventor: Fox, Burton Stafford

Location: Banff

Comments: b Prince Edward Island 1862; farmed in Ontario; came to Banff 1912; manager of fish hatchery; retired 1931; m Catherine; d 1951; see Crag and Canyon, June 22, 1951

Description: Burton Stafford Fox, Banff, Alberta, Canada, 8th July, 1930. Filed 26th July. 1929. Serial No. 353,500.

Claim.—1. A method of headlighting comprising in combination with a parabolic reflector of an electric lamp composed of a bulb having supported therein a central filament adjacent to the focus of said reflector, an offset filament on each side of said central filament, the offset filaments being on a plane above said central filament and a means for independently controlling the energization of each of said filaments.

2. A method of headlighting comprising in combination with a parabolic reflector of an electric lamp composed of a bulb having supported therein a central filament adjacent to the focus of said reflector, an offset filament on each side of said central filament, the offset filaments being on a plane above said central filament, one of said offset filaments being at a greater spaced distance from said central filament than the other of said offset filaments and a means for independently controlling the energization of each of said filaments.

3. A method of headlighting comprising in combination with a pair of parabolic reflectors of an etiectric lamp in each of said reflectors, each lamp comprising a bulb having supported therein a central filament adjacent to the focus of its respective reflector, an offset filament on each side of said central filament, the offset filaments being on a plane above said» central filament, the outer of said offset filaments in each of said lamps being at a greater spaced distance from its respective central filament than the inner of said offset filaments, a means for independently controlling the energization of said central filaments and a means for independently controlling the energization of pairs of offset filaments comprising the outer offset filament in one reflector and the inner offset filament in the other reflector.

Claims allowed, 8.