A French made carriage clock by Gay, Lamaille and Company made in Paris. It is a five minute repeater and features the Patent Surety Roller.

The Patent Surety Roller refers to a mechanical device that is intended to ensure the accuracy of the strike work in a carriage clock. The strike work in a carriage clock can be substitutable to be bumped out of sequence (star wheel) when the clock is being transported. Moritz Immisch address this concern and patented a spring-operated lever device, sometimes referred to a jumper, that puts pressure on the star wheel and prevents the inadvertent change. This device becomes known as the PSR and is introduced in 1879. The Paris clockmakers, Gay, Lamaille and Company acquired the patent in 1880. It is evident that this firm also made and supplied movements for others, including Dent, Frodsham, and Parkinson & Frodsham.

This case cased example features very unusual side columns. They are turned smooth and are decorated with 9 textured bands. This band detail is repeated in the design of the carrying handle. The rest of the case design has classic features. The four glass side panels and the viewing window at the top of the case all feature beveled edges. One can access the movement by opening the rear door. This clock features a well made and very interesting brass made movement that is designed to run eight days on a full wind. This clock will strike the hour on a coil gong which is located and mounted to the back of the movement. It also has two repeat buttons located at the top of the case. Depress the forward button and the clock is designed to strike the last hour. Depress the rear button and the clock is designed to strike once for each of the last five minute markers the minute hand has past. This is done through the design of the star wheel which is located on the back plate. This repeat feature was incorporated into clocks like this so that one could place the clock on the night table. If you were to wake from sleep in the darkness hours, you could simply press these repeat buttons and the clock would strike the approximate time. This would be much more convenient than having fumble in the darkness, looking for a match to strike in order to light a candle to visually read the dial. The back-plate is Stamped “G.L.” in an oval that is located in the lower left hand side. The serial number, “3932” is die-stamped just below it. The “PATENT SURETY / ROLLER” is also stamped in an oval located in the center of the plate. This clock is currently in good as found condition. We have not had a chance to service the movement. This service will be preformed when the clock is sold. The dial presentation is very clean. The circular time dial features Roman style hour numerals and an open minute ring. Blued steel hands depict the time. The dial is framed in a brass mat. The mat is polished smooth. It is also framed with beveled edge moldings on all four sides.

This clock measures 7 and 3/8ths inches tall with the handle in the up right position. The base is 4 inches wide and 3 and 5/8ths inches deep. This clock was made circa 1890.

For additional information about this Clockmaker and their Patent, please read Tom Wotruba’s excellent article, “The story behind PATENT SURETY ROLLER stamped on carriage clocks.” It is published in the Antiquarian Horological Society, June, 2017.

For more information about this clock click  here .