Chelsea Clock Museum

Joseph H. Eastman, 1843-1931     Joseph H. Eastman Obituary

E. Howard     Harvard        Boston         Waltham         Eastman         Chelsea

Chelsea Clock Company Precision Regulators

Harvard Register     Eastman Register

Fairhaven MFG & Vermont Clock Companies

Little & Eastman & Derry MFG Companies

U.S. Navy, U.S.L.H.E., U.S.L.S.S., U.S. Coast Guard

Chelsea & the Decorative Arts         100 Years

Chelsea Advertisements     Catalog Sequence

Chelsea Catalog 1906      Chelsea Catalog 1911      Chelsea Catalog 1923

Chelsea Leaflet A 1926

Serial Numbers      Large Dial Chelsea Clocks     Record Book One

Patent Documents

Vintage Chelsea Clocks For Sale

Links      Home      Contact

Chelsea Clock Company, The First Hundred Years  

U. S. Patent and Design Patent Documents

Starting with the Harvard Clock Company and their first U. S. Patent, dated December 28, 1880, many inventors and the family of companies that followed the Harvard Clock Company produced designs that would set the foundation for the marine clocks of the next 125 years.  The following table lists patent and design patent numbers, inventor, date, title and assignee. These patents can be viewed by clicking on the patent or design patent number links and scrolling down to view all pages. The Google Patent Search link below can be used to do your own patent searches, using patent/design number, inventor, patent date, patent title or assignee. 

 

 

Patent/Design #      Inventor                 Patent Date                 Patent Title                              Assignee

 

236,016                       James H. Gerry                December 28, 1880             Clock                                                    Harvard Clock Co.

 236,017                       James H. Gerry                December 28, 1880             Winding Attachments for Clocks            Harvard Clock Co. 

343,629                       Joseph H. Eastman          June 15, 1886                       Tandem Wind Movement                      Boston Clock Co.

 343,947                       Joseph H. Eastman          June 15, 1886                       Clock winding mechanism                      Boston Clock Co. 
                                  Abraham Craig

 360,648                       Charles Bickford             Apr 5, 1887                           Device for letting down Boston             Boston Clock Co./C. Bickford
                                                                                                                          Tandem Wind Mainsprings

 374,142                       Abraham Craig                Nov 29, 1887                       Mode of Finishing Wheel Blanks            Boston Clock Co.

 394,816                       Charles Bickford             Dec 18, 1888                        Remontoire for Boston Tandem             Boston Clock Co./C. Bickford
                                                                                                                          Wind Movement

 482,393                       Benjamin F. Stockford    Sept 13, 1892                       Speed & Whistle Recorder for               Boston Clock Co./B. F. Stockford         
                                                                                                                          Locomotive Engines                                

500,717                       John S. Negus                 July 4. 1893                          Ship's Bell Clock                                   Boston Clock Co./John S. Negus

 533,581                       Abraham Craig                Feb 5, 1895                         Clock                                                   A. Craig

613,183                       George W. Adams          Oct 25, 1898                        Clock Striking Mechanism                     Chelsea Clock Co./C. H. Pearson

 633,257                       George W. Adams          Sept 19, 1899                       Clock                                                    Chelsea Clock Co./C. H. Pearson

650,979                      Walter K. Menns             Jun 5, 1900                          Ship's Bell Clock                                    Chelsea Clock Co./C. H. Pearson
 
664,886                      George D. McMillan        Jan 1, 1901                          Ship's Bell Clock                                    Vermont Clock Co./G. D. McMillan

 689,899                      Walter K. Menns             Dec 31, 1901                       Ship's Bell Clock Case                           Chelsea Clock Co./C. H. Pearson

 D037411                      Walter E. McGraw          Apr 18, 1905                        Design Patent M&M Base                     Chelsea Clock Co.

 D37587                      Walter E. McGraw          Oct 24, 1905                        Design Patent B&B Case                       Chelsea Clock Co.

 D37736                      Walter E. McGraw          Dec 19, 1905                       Design Patent Car Clock Case                Chelsea Clock Co.

 D38187                      Walter E. McGraw         Aug 21, 1906                        Design Patent Library Case                     Chelsea Clock Co.

1,001,668                  Walter K. Menns             Aug 29, 1911                        Automatic Ship's Bell                              Chelsea Clock Co.

 1,025,821                  Walter E. Mcgraw           May 7, 1912                         Device for Improving Tone of Gongs       Chelsea Clock Co./C. H. Pearson         

1,037,952                  Walter K. Menns             Sept 10, 1912                       Speed Indicating & Recording Device     Chelsea Clock Co.
 
 1,089,246                  Walter K. Menns             Mar 3, 1914                          Speed Indicating & Recording Device     Chelsea Clock Co.

 1,094,582                  Walter K. Menns             Apr 28, 1914                         Stem Winding & Setting Mechanism       Chelsea Clock Co.

 1,099,307                  Walter K. Menns             June 9, 1914                          Car Clock Wind & Set                          Chelsea Clock Co.

 1,331,163                  Walther K. Menns           Feb 17, 1920                         Stem Wind Car Clock                             Chelsea Clock Co.

 1,354,674                  Walter K. Menns            Oct 5, 1920                            Recording Timepiece                               Boston Clock Co.(Chelsea)

 1,360,308                  Walter K. Menns            Nov 30, 1920                         Time Controlling Mechanism (gaslight)      Boston Clock Co. (Chelsea)

 1,583,954                  Frederick W. Bold          May 11, 1926                         Time Controlled Motor                            Boston Clock Co. ( Chelsea)

 D82,389                    Walter E. Mutz                Oct 28, 1930                          Design Patent Outside Auto Ship's Bell     Chelsea Clock Co.

 D96676                      George J. King                Aug 27, 1935                         Design Patent for Clock Dial (radioroom) Chelsea Clock Co.

 3,921,383                   Anselm James Leone     Nov 25, 1975                          Mechanism for Tide Clock                       Bunker-Ramo Corporation

 D302137                    Richard F. Leavitt           July 11, 1989                           Design Patent for Quartz Clock               Chelsea Clock Co.  
 

Back     Home