PRINTED BY GEORGE E. EYRE AND WILLIAM SPOTTISWOODE, PUBLISHED AT THE OFFICE OF THE COMMISSIONERS OF PATENTS FOR INVENTIONS, 1871. 176. i. 88. WATCHES, CLOCKS, AND OTHER TIMEKEEPERS. 1857. A.D. 1857, February 10.-No 389. WATSON, JOHN FORREST.-Constructing an outer case for a watch. The case consists of a ring, round which is made a rib or projection, which forms a rest for a circular enlargement or flange on the inner case, which, when placed there, is held fast by a bolt or catch or other suitable fastening. On the ring is hinged at one side a metal back, and at the other an open ring. The watch can be placed either with its face or back to the open ring, so as to form an ordinary or a hunting watch. The handle or pendant is fixed on the outer case. [Printed, 6d. Drawing.] A.D. 1857, February 20.-N° 501. GLOVER, JOSEPH, and BOLD, JOHN, the younger.--Printing by photographic means on substances suitable for dials and tablets. Enamelled glass, metals, or other suitable mineral substances are operated upon in the following manner :-The surface of the material is first washed with fluoric acid to destroy the gloss, and then with water. The material thus prepared is ready to receive the collodion or other sensitive substance, and to be subjected to the ordinary photographic operations of receiving the image, and developing and fixing the same. "Translucent or transparent "tablets and dials may be taken on glass or other transparent, "semi-transparent, or opaque substances by the above process. By thus preparing the enamelled or other surface, pictures or subjects printed thereon are rendered capable of receiving water colors, oil colors, dry colors, and varnish colors." 66 66 [Printed, 4d. No Drawings.] WA. A This volume is a continuation of the "Abridgments of "Specifications relating to Watches, Clocks, and other "Timekeepers," already published, and brings the Abridgments to the end of the year 1866. From that date the Abridgments have not been published in classes, but will be found in chronological order in the quarterly volumes of the "Chronological and Descriptive Index" (see List of Works at the end of this book). It is intended, however, to publish these Abridgments in classes as soon as the Abridgments of all the Specifications from the earliest period to the end of 1866 have appeared in a classified form. Until that takes place, the reader (by the aid of the Subject-matter Index for each year) can continue his examination of the Abridgments relating to the subject of his search in the Chronological and Descriptive Index. The present series of Abridgments contains those inventions in which clockwork is employed to indicate time, either by visible or audible means, or in which horological apparatus is actuated by other means than clockwork. Compound instruments, one part of which is a watch or clock (for instance, where a barometer, compass, thermometer, and clock are placed together for facility of reference) have been admitted; but not mathematical instruments used in conjunction with a stop watch for the registration of certain times or isolated periods of time, in order to ascertain speed, or for similar purposes. Inventions relating to all the following subjects are included:The separate parts of a watch or clock, and the tools for manufacturing the same; scales for a new division of time; time teachers; toy watches; and swivels, bows, pendants, or knobs, when intended to form part of a watch or watchkey, but not when described only as part of a chain, watch guard, or property protector. Inventions relating to the following subjects (excepting a few which also belong to some of the above included classes) are excluded from this work :-Tell-tales and indicators for recording the arrival of workmen, &c.; nautical and astronomical instruments by which time can be ascertained through celestial observations; clockwork mechanism as a part of various machines, wherein it has no reference to the separate and distinct indication of time horologically, but is used mainly as a motive-power, moving by means of regulating apparatus at a determined and uniform speed-for example, in electric telegraph transmitting or receiving machines, musical instruments, and machines performing certain actions at fixed intervals, often styled "automatic.” The Abridgments marked thus (**) in the following pages were prepared for another series or class, and have been transferred therefrom to this volume. B. WOODCROFT. May, 1871. |