The table was compiled by Arleta Rodrigues. There is a lot of controversy over why there were two lots of numbers. All firearms sold to private individuals in the U. Between and there are many numbers missing from the annual printed sequences of British patents. Once you have the patent number and year, ask a librarian to request the patent from the offsite store for you.
- Impressed or print mark with several variations.
- The text of the patent document identifies the patentee and provides a technical description of the invention.
- Singer machine serial number dating Guide.
- Printed mark which appears on early Flambe wares, particularly smaller items.
- Figurals, nursers, and many styles of pharmaceutical and chemical bottles are listed.
Instructions for using our serial number look-up tables
You may like to search the Hathi Trust website further, as there are numerous digitised items here. Lest they were confused with other characters, I and Q were not utilised, heart dating login so the date letters to were as follows. The original enrolments of early English patents and any specifications are kept at the National Archives.
Rifles without modern proof still regularly appear on the market, having lain in store for decades. There is an inventor name index and detailed subject index at the front of each volume. Anschutz target rifles fall into this category, area and their system is given on the page for these rifles.
Original records relating to Irish patents have not survived but some records held by the National Archives contain references to Irish patents. During World War Two Singer had back orders for over three millions machines! Resources vary from library to library. Do not briefly glance over a page and assume that the information you require is not there. For instance they can search for the name of a single individual across all technical areas over a ten year period.
Finding and using the patents
If you have a manufacturer name then there might be some material from the company in our trade literature collection. If no specification was found, then just the details of the grant recorded in the Patent Rolls were transcribed. Please contact us for further details. Use the granted number when requesting these patents. There are a number of methods by which a rifle can be dated, or at least bracketed between certain years of manufacture.
Home Research Guides Patents Britain. The number and year of the patent are essential to know if you wish to view a patent. Found on Doulton Brangwyn wares either on its own or with the standard mark.
Royal Doulton Marks & Dating Doulton Ceramics
The simple guide to dating your early Singer sewing machines. Date marks for the London Proof House did not commence until and are therefore of limited value in dating classic rifles. Now to the dating All Singers up until have no letter prefix and came from several factories around the world.
Please note these are only for the British Singers. Small items only marked with the cicular section of the mark. Their catalogue is on this page. The machines were miles from completion, packing and delivery.
Company for many years and holds most of those records not destroyed in enemy bombing raids on the factories during the War, has been willing to help date a particular B. If a technical specification for any of these patents was found, then its text was transcribed in full and engravings were made of any drawings. Well that's it, I do hope you enjoyed my work.
Most British patents from onwards are available on the European Patent Office's Espacenet database which you can access free of charge on the internet. As far as we are aware, all B. That is not to say that your item was produced in that year but simply that the year indicated is the earliest the piece could have been produced. We also have a few examples of Scottish and Irish parchments. We do have paper copies of these patents but access to them is restricted for conservation reasons.
Dating Uk Patent Numbers Hookup Fest
Here are a few of the Singer factory letters around the world. In many cases drawings are also provided. Chronological and descriptive index of patents applied for and patents granted, containing the abridgements of provisional and complete specifications. On pre Singer machines if there are two serial numbers, always use the higher, longer, larger, serial number of the two.
Find early British patents - The British Library
All issuances were given a number and can be located in the Gazette by those numbers. For patents from to Use the indexes to find the patent number and year. Do remember, though, that date information coded with proof and Proof-House inspection, viewing or identification marks, does not necessarily coincide with the date of manufacture. The two markings are shown below, the International to the left, and Century to the right.
Early British trade marks are, unfortunately, very difficult to trace by number. Available instantly on Amazon and in paperback. When monopolies came to be granted for inventions, the grants were made with letters patent. All Alex Askaroff's books are now available instantly on Amazon.
Because of this regular repetition of numbers, it is important to provide the patent number and the year when ordering these patents from State Library staff. English patents English patents granted before October were first printed and published in a numbered sequence in the mids. Before English patents were not numbered. These letter are before the serial numbers. Singers have never manage to shed light on these two numbers especially as many have the last three digits the same!
Determine the Age of your Vintage Pocket Watch
All the information you need on visiting the library and applying for a pass to use our reading rooms is here. Subject matter index for the period to September the patents are grouped together by subject. Patents in Great Britain The British Library has the national collection of British patents and associated documentation.
- From the year of production should be impressed and there should also be an artists mark.
- Where your Singer has two serial numbers always choose the larger of the two to date your machine.
- Often a number will be found on a collectible.
- Dating Royal Doulton products from their Doulton marks means you sometimes have to check very carefully.
- Variation of standard impressed mark without the crown.
GB Patents Issued - Latest number issued by year
See the Digitised versions box on this page for the links to the digitised indexes. Doulton Marks Royal Doulton Marks, base marks, romantic pictures from russian dating pattern codes and trade marks. Where are the original enrolments of English patents held? In to an impressed shield is also present which includes a lower case letter. Using these you can look for patents by applicant name and also by the subject matter of the invention.
If you can limit the search to a specific technical area then they may be able to make a name search over a longer period of time. Thus they are usually very obviously stamped on the appropriate pressure-bearing parts where thay can easily be seen. This is nothing new, the dating and proof-house date marks from years past may still not indicate the rifle's date of manufacture. British patents From October onwards British patents covered the whole of the United Kingdom and were printed and published regularly each week in pamphlet form.