. Bulletin - United States National Museum. Science. PRIMARY SPARK COILS. FOR ELECTRIC c; \s UOHTIKO, Cat. No. 48304. 8 inch Price, each, " 50304. 10 " 52304. 12 " 54304. Detached Gas Lighting Relays For Spark Coils with Relay Attachment, add $2 50 to price f"r Spark ( toll. Figure 23.—Type of spark coil the Duryeas are believed to have used in their electrical circuit, as shown in a catalog illustration. (Smithsonian photo 46858 V *H 20 8 TO 4 SO mission, explaining the plan to Charles: "The three 1 on secondary shaft have friction clutches, the two bevel gears on sam
. Bulletin - United States National Museum. Science. PRIMARY SPARK COILS. FOR ELECTRIC c; \s UOHTIKO, Cat. No. 48304. 8 inch Price, each, " 50304. 10 " 52304. 12 " 54304. Detached Gas Lighting Relays For Spark Coils with Relay Attachment, add $2 50 to price f"r Spark ( toll. Figure 23.—Type of spark coil the Duryeas are believed to have used in their electrical circuit, as shown in a catalog illustration. (Smithsonian photo 46858 V *H 20 8 TO 4 SO mission, explaining the plan to Charles: "The three 1 on secondary shaft have friction clutches, the two bevel gears on same shaft are controlled by a clutch which frees one and clutches the other at will. This provides a ; I he Springfield E\ er the progress on their motor v. and discussed the transmission problem. They gave particular attention to everything relating to engines and motor carriages, and I tank recalls seeing a Daimler quadricycle that impressed him with it- Just what decisions the two might have made there are unknown, yet it is likely that they agreed to give the old transmission one more chance to prove itself. Returning to Springfield, probably in the first week of November, Frank gave the friction drive its final test, this time substituting a leather belt for the rubber one first used. -' Mr. Markham, though in- tensely interested in the experimi nts, apparently was dubious concerning the safety of the carriagi I1 I id no brakes, and fearing Failure of the transmission on a downgrade, he was reluctant to ride in the machine. ( >n November 9 he asked Will Bemis to try it for him. The follow in« day the Spring/fid Morning Union gave a description of the run: Residents in the vicinity of Florence street Hoiked to the windows \\ aftei noon astonished to see gliding by in the roadwa\ a common top carriage with no shafts \* actually constructed there are only two ceais on the secondary shaft. He obviously discovered that one gear 1 to two c
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
