Posted: Fri Nov 02, 2007 3:31 pm
Post subject: Gilbert mantel clock
I'm not sure what you mean by "cables across the back of the movement".
A bim bam clock refers to the type of striking that it has. It strikes the number of hours on two gongs or chime rods in bim bam (or ding dong) pattern. This bim bam strike happens only on the hour and half hour. (some clocks only strike one note on the half hour to differentiate it from the hour strike). There are two hammers inside the clock to perform the bim bam striking.
Usually most older clocks only struck the hours on a coil gong. Some clocks distinguished the hour from the half by having the half hours strike on a bell instead of the gong.
A westminster chime clock on the other hand plays a portion of the westminster melody each quarter hour, progressing from four notes on the quarter hour, to eight notes on the half, twelve notes on the three quarter and finally sixteen notes on the hour, followed by striking the correct number of times for that hour. One easy way to tell if a clock has westminster chimes or not is to count the key holes in the dial. If it has three winding shafts it is probably Westminster. It may even have additional chimes. It would have four hammers or possibly more for the chimes and hour strike.
Two winding holes in the dial indicates that the clock is an hour/half hour strike which may or may not be bim bam.
Although Gilbert was in business for many years I don't often see Westminster chime models made by that firm show up for sale on eBay or elsewhere, although I'm sure they exist.
The "big seven" American clock manufacturers (of which Gilbert was one) that were in business for many years, all made a variety of clocks to suit every taste. All of them followed the fashions of the times. In some cases they tended to copy one another in styles and features too. Sadly, not a single one of those companies is still in business today.