This is the router plane that sent me on an interesting patent search odyssey. The thumbscrew is marked Pat June 9, 1925 on one side and Economy on the other. I believe that the thumbscew is patent¹ 1,541,518 Thumb or wing screw. This patent has also been entered into Datamp (Directory of American Tool and Machinery Patents).
¹Note: in order to view patents at the USPTO site you'll need a tiff plugin for your browser. Something like AlternaTiff- freeware from http://www.alternaTiff.com
Update: the uspto web site is using pdf's now! A tiff viewer is no longer required! I've updated the links on this page to show the pdf's instead.
Links relating to the search for this patent
- a picture of the thumb screw
- My post to oldtools about this
- An annotated page of patents issued on June 9, 1925. You'll be amazed at what patents were issued on this date!
- My shotgun¹(tm) page for utility patents issued June 9, 1925
- My shotgun(tm) page for design patents issued June 9, 1925
- Category 30 listing (hand planes etc.)
- My Shotgun(tm) web page - generates links to sequential patents from the starting point you specify.
- Shotgun2(tm) the sequal
- Shotgun3(tm) - son of the sequal. Save an advanced search locally then use this page to dynamically generate links to the patents your search found!
- ShotgunX(tm) - the early patents. You just can't kill Jason :-)
Other patent related links:
- MWTCA's patent searching page
- Missouri Valley Wrench Club's page on online patent searching
- My patent related display from the Fall 2005 mwtca national tool meet.
- My patented "shaper"
- patented tools sold at a recent auction
- Ralph Brendler's patent searching posts in the oldtools archive: messages 102975 and 114012
- Directory of American Tool and Machinery Patents: Datamp.org
- datamp's breakdown of patents by month, day and year
- Chuck Zitur's Geared Drill Patents
- A page of Emmert vise patents
- The US Patent web site and/or their advanced search page
- List of Withdrawn patents
- Us Patent Office's Seven step search quide
- A listing of the patent categories
- List of first patents issued each year
- A page of router plane patents
- The same information with links to the patent images
- Galoot Scott Grandstaff's father's patents:
- Galoot Mark van Roojen's father's patents:
- cabinet scraper sharpener/burnisher available from Woodsmith magazine
- The telegraph
- steam whistle
- Isacc Babbitt's metal
- punched cards and reader 1887
- circular saw blade sharpener shown in August 2002 Woodworker's journal
- Die filer I saw for sale 2,367,864 patented 1/23/1945
Patents from items found around my house
- ribbon slitter (gift wrapping) patent 4980942
- Hand punch 1,641,521 I bought for a quarter at a tool meet.
- Smucker's peanut and butter sandwich patent! ( 6,004,596)
- Guinness can - 11 pages worth! It's patent 4,832,968 issued issued May 23, 1989
- my Sensus water meter says it's patented. Their web site (www.sensus.com) lists the following four patents: 3,748,654, 4,132,981, 4,758,836 and 5,796,250 I'll need to figure out which patent applies to my meter.
- a box scraper 908,629 Patented 1/5/1909
- another box scraper I have (in case the other one is in the shop) 835,160 Patented 11/6/1906
- From a Lufkin tape measure I have. The first two are on the case the last one is on the tape itself: 1,964,280 1,973,843 1,828,401
- my conduit bender 4,442,695
- junction box for a ceiling fan 5,860,548
- Patent numbers from the toilet flapper I installed:
- The fire hydrants on my block. 1,561,167 patented November 10, 1925
Lead hammer related patents:¹"shotgun" refers to a particular screen layout I like to use. It's used in on a lot of my patent pages. On the left hand side are links you can click on. The results of these clicks are shown on the right side of the screen. The links are the patent number which brings up the first page of the patent, a [D] link which checks for the patent in the datamp.org database, a [U] link which will bring up a page showing the patent classification and a [S] link, when present, will bring up the patent specification page (generally the first non picture page showing among other things, the patentee's name, city and state). The [G] link will bring up the patent at google where a tiff viewer is not needed.