Jag köpte nyligen ett hus byggt 1920. Det har vackra gamla trÀ- och kopparregister. Till höger om ett register Àr en ratt med en skÀrmkedja som gÄr ner i kÀllaren. Skivan lÀser "Holland Warm Friend" och det finns en instÀllning för "draft" och "check." Den gamla ugnen Àr lÄngt borta, sÄ jag undrar vad den hÀr dialen var för.
- David, Lisle, IL
EN:Richard Trethewey svarar: Den ursprungliga uppvÀrmningsanlÀggningen i ditt hus var sannolikt en koleldad ugn tillverkad av Holland Furnace Company of Holland, Michigan. Enligt Joel Lefever, kurator för Holland Museum, fakturerade företaget sig som den största installatören av varmluftsugnar i vÀrlden; Det var i affÀrer frÄn 1906 till början av 1960-talet. Skivan och kedjan styrde mÀngden vÀrme ugnen producerade, utan att nÄgon skulle behöva göra en resa till kÀllaren. Uppringning av "utkast" öppnade en spjÀll som möjliggjorde mer luft att komma in i eldstaden. Om du vrider ratten, kommer den andra riktningen att minska, eller "kontrollera", luftflödet, minska flammen och sÀnka vÀrmen.
FAQ - 💬
❓ What is a Mystery dial?
👉 A mystery dial is a visual and modest structural change made for visual appeal and autotelic charm; an interesting look for the sake of, well, looking interesting. Thankfully, and for the most part, any observable changes aren't offset by a more troublesome time-telling experience.
❓ How does Mystery watch work?
👉 The term âmysteryâ (whether in English or French) as applied to a clock or watch means that some part of its mechanism or operation is hidden from the user. In this case it means that you can't immediately see how the hands are attached. Two watches in 2013 battle it out for your less than mystery dollars.
❓ What are the different types of watch dials?
👉 The most common dial indices are stick, Arabic, Roman and mixed. However, there are many more types, like diver, California, KonTiki and Flieger, to name but a few.
❓ Why is it called a mystery clock?
👉 The mystery clock. Mystery clocks derive their name from the rock crystal disc to which minute and hour hands are attached, and which hides a rack-and-pinion system. The hands appear to rotate without the assistance of any movements, in turn.
❓ What is sunburst dial?
👉 Also known as a âsunburstâ dial, this style is defined by ultra-thin, almost imperceptible lines emanating from the dial's centre. Like their namesake sun rays, these lines add a subtle texture and appear to change depending on the light.
❓ What is a cross hair dial?
👉 The pattern on the lens of a rifle scope . . . . . . is called a crosshair , from the intersection of two wires about as thin as human hair. Just as the crosshair allows a marksman to precisely place a shot, my guess is the dial pattern is a symbolic representation of the precision inherent in the wat...
❓ What is a Jefferson clock?
👉 One of Monticello's most memorable features is the Great Clock, designed by Jefferson, built by Peter Spruck in 1792, and fully functional today. The clock, with both an interior and exterior face, dictated the schedule of the entire plantation, inside the building and out.
❓ How does Jefferson electric clock work?
👉 A small counterweight of metal is attached to the rear portion of the hour hand. It is the same shape and can be seen behind the main counterweight near the bottom of the picture. It serves to hold the hour hand in proper position relative to the minute hand.
❓ What is watch bezel?
👉 The simple answer is that a watch bezel is a ring of material (usually either ceramic or metal) that secures the watch crystal in place. Watch bezels can be fixed, decorative pieces, or bezels can provide functionality like a countdown timer, GMT indicator or even a compass.
❓ What are crowns on a watch?
👉 Crown. The "little knob on the side of the watch" used to set time. May also serve additional functions depending on the watch. Example: Used to wind the mainspring on mechanical watches.
❓ How does a golden hour mystery clock work?
👉 A gear was hidden in the metal ring that held the clock face, and a tiny wire on the minute hand fit into the gear. Gears attached to the minute hand drove the hour hand. The minute hand is obviously touching the rim, so the mystery was easier to solve.
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