{"id":531,"date":"2011-08-31T21:46:29","date_gmt":"2011-08-31T21:46:29","guid":{"rendered":"http:\/\/bollerandchivens.com\/?p=531"},"modified":"2014-05-29T13:24:09","modified_gmt":"2014-05-29T13:24:09","slug":"glass-photo-plate-assembly","status":"publish","type":"post","link":"https:\/\/bollerandchivens.com\/?p=531","title":{"rendered":"Glass Photo Plate Assembly"},"content":{"rendered":"<p>Boller and Chivens developed a program for generating glass photo plates for large optical encoders.<a href=\"https:\/\/bollerandchivens.com\/wp-content\/uploads\/2011\/09\/BC.unknown.testing.console.-w.encoder.papers.300dpi.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-792\" title=\"B&amp;C.unknown.testing.console.-w.encoder.papers.300dpi\" src=\"https:\/\/bollerandchivens.com\/wp-content\/uploads\/2011\/09\/BC.unknown.testing.console.-w.encoder.papers.300dpi-1024x782.jpg\" alt=\"\" width=\"584\" height=\"445\" srcset=\"https:\/\/bollerandchivens.com\/wp-content\/uploads\/2011\/09\/BC.unknown.testing.console.-w.encoder.papers.300dpi-1024x782.jpg 1024w, https:\/\/bollerandchivens.com\/wp-content\/uploads\/2011\/09\/BC.unknown.testing.console.-w.encoder.papers.300dpi-300x229.jpg 300w, https:\/\/bollerandchivens.com\/wp-content\/uploads\/2011\/09\/BC.unknown.testing.console.-w.encoder.papers.300dpi-392x300.jpg 392w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/a><br \/>\nThe assembly as built up :<br \/>\n1. Rubber Pads on Slab.<br \/>\n2. Steel Pads on Rubber Pads.<br \/>\n3. Heavy Steel Support Frame.<br \/>\n4. Thick Rubber Pads on frame.<br \/>\n5. Large Granite Surface Plate<br \/>\n6. Small Granite Surface Plate Bonded to Large Surface Plate<br \/>\n7. Precision Rotary Table operated by electronic Servo System from the control console.<br \/>\n8. Heavy support frame<br \/>\n9. Heavy cross beam<br \/>\n10. Optical Line Projection Assembly<br \/>\n11. Air Tubes scavenging projection lamp hot air away<br \/>\nThe Operating Console.<br \/>\nThe control panel would program the rotary table to index to many angular positions and produce.<br \/>\nshort multiple radial lines at different radii.<br \/>\nWith each revolution of the rotary table it was required to have absolute identical separation between<br \/>\neach of the hundreds of rotational lines that were being projected onto a glass photographic plate.<br \/>\nThe temperature-controlled room was a positive clean\u2013room environment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Boller and Chivens developed a program for generating glass photo plates for large optical encoders. The assembly as built up : 1. Rubber Pads on Slab. 2. Steel Pads on Rubber Pads. 3. Heavy Steel Support Frame. 4. Thick Rubber Pads on frame. 5. Large Granite Surface Plate 6. Small Granite Surface Plate Bonded to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-531","post","type-post","status-publish","format-standard","hentry","category-specialty-instruments"],"_links":{"self":[{"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=\/wp\/v2\/posts\/531","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=531"}],"version-history":[{"count":6,"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=\/wp\/v2\/posts\/531\/revisions"}],"predecessor-version":[{"id":2663,"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=\/wp\/v2\/posts\/531\/revisions\/2663"}],"wp:attachment":[{"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bollerandchivens.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}