here's my list of 180 fave free online patents related to record making - fascinating reading. Inspiring for the DIY'er.
They won't lay out a step-by-step plan for how to build your own cutterhead & lathe, but they do offer many
assorted details, clues, and generally interesting reading - for any DIY hobbyists/metalworkers so inclined to "take
the ball & run with it" there's plenty of potentially useful info on ideas for crafting all kinds of fun experiments.
The links require you register with the following website, but it's Free, and immediate: Click the "Create Free Account" link
at top right & follow instructions:
http://www.freepatentsonline.com/
Following are some pics from diff't ones listed here, then the links. Enjoy, feel free to note any additional patents you
find you think of interest,
- Bob
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(The dates are when they were filed, not granted)
1895: disc trimming machine (Pat. 0670636)
1903: record press die (Pat. 0879363)
1906: phono disc pressing apparatus (Pat. 0847338)
1907: funny grammophone couldve been stereo (Pat. 0908778)
1908: Victor record stamper construction (Pat. 0941291)
1911: Edison Diamond Disc pressing process (Pat. 1146413)
1912: phono disc pressing apparatus (Pat. 1190072)
1913: Victor record press complete (Pat. 1251851)
1914: Edison Diamond Disc composition (Pat. 1146414)
1915: stereo grammophone separate vertical lateral movement (Pat. 1342442)
1917: laminated record making recipie (Pat. 1283450)
1917: record press Camden NJ probably Victor (Pat. 1290105)
1918: Columbia phono disc pressing apparatus (Pat. 1372992)
1918: record press stamper assembly (Pat. 1307812)
1919: Columbia record press stamper assembly (Pat. 1447183)
1919: Pathe record press (Pat. 1442856)
1919: record press sprayed heating and cooling (Pat. 1358577)
1920: bizarre ripple shaped record idea (Pat. 1455886)
1920: laminated record making (Pat. 1500698)
1920: lead-out groove cutting gadget (Pat. 1342872)
1920: process for molding wax master disc blanks (Pat. 1394034)
1920: simple amateur method of making wax blanks (Pat. 1455129)
1920: stereo acoustic grammophone cutter and reproducer (Pat. 1520378)
1920: stereo grammophone separate vertical lateral movement (Pat. 1522949)
1921: Columbia record press not using heating and cooling mediums (Pat. 1481743)
1921: dies for molding phono records (Pat. 1399817)
1921: Pathe record press (Pat. 1370185)
1921: Pathe record press (Pat. 1436941)
1921: record press (Pat. 1520214)
1921: record press (Pat. 1573769)
1921: record press die (Pat. 1407130)
1921: stereo dual groove grammophone records (Pat. 2126370)
1922: record press die holder (Pat. 1571929)
1923: Brunswick record press stamper assembly (Pat. 1576642)
1923: record press stamper assembly (Pat. 1582704)
1923: Western Electric lathe and electr cutterhead (Pat. 1661539)
1924: Brunswick record press stamper assembly (Pat. 1504422)
1924: Columbia record press awkward perhaps due to laminated process (Pat. 1569002)
1924: electromagnetic cutterhead (Pat. 1663885)
1924: Western Electric electromagnetic cutterhead (Pat. 1709571)
1925: steam platen (Pat. 1574175)
1926: Cameo records stamper construction (Pat. 1737619)
1927: magnetic cutterhead unique looking (Pat. 1776045)
1928: RCA record press (Pat. 1930931)
1929: eccentric trip groove cutting gadget (Pat. 1801404)
1929: lathe (Pat. 1711690)
1929: magnetic recording and playback head (Pat. 1833070)
1929: steam platen for press (Pat. 1790114)
1930: Durium paper record making process (Pat. 1822508)
1931: Columbia magnetic cutterhead (Pat. 2016622)
1931: magnetic cutter and reproducer (Pat. 2037255)
1932: Bell Telephone process for creating wax master discs (Pat. 1960025)
1932: interesting early dual-groove stereo cutting (Pat. 2014528)
1932: RCA magnetic cutter and reproducer (Pat. 2092884)
1932: steam platen (Pat. 1884612)
1933: RCA record pressing matrix assembly (Pat. 2092880)
1934: novel record duplication process (Pat. 2106623)
1934: Western Electric plating of laquer master (Pat. 2018471)
1936: 45 45 stereo cutterhead (Pat. 2114471)
1936: cutterhead (Pat. 2033824)
1936: cutterhead (Pat. 2173051)
1936: electroplating method of making press molds (Pat. 2258579)
1936: RCA magnetic cutting and reproducing head (Pat. 2155469)
1937: cutterhead w feedback from bell telephone (Pat. 2161489)
1937: RCA wax master disc improvement (Pat. 2216970)
1937: v-shaped recording stylus shape (Pat. 2187512)
1937: variable depth lathe (Pat. 2112699)
1938: RCA ideas for higher quality record material (Pat. 2269267)
1939: electroplating apparatus (Pat. 2181490)
1939: general method of forming press dies (Pat. 2327762)
1939: lathe (Pat. 2241622)
1939: Soundscriber cutterhead (Pat. 2222342)
194x: device for faceting jewel cutting stylii (Pat. 2444795)
1940: Brush cutterheads (Pat. 2286178)
1940: Dow embossed record blank coating composition (Pat. 2308676)
1940: ideas for higher quality record material (Pat. 2335986)
[Post trimmed for size to fix a technical glitch.... see continuation of blacknwhite's post under "Steve E." below --Admin]