Electricity: a large electro-static generator, on an isolating frame []. Engraving. https://www.rawpixel.com/image/13986833/image-frame-airplane-technologyFree Image from public domain licenseTextiles: an automatic scutching machine for cotton. Engraving by J. Scott after W. Ross. https://www.rawpixel.com/image/14001720/image-paper-pattern-technologyFree Image from public domain licenseWilliam Lee, uitvinder van de breimachine (1868 - 1912) by anonymous https://www.rawpixel.com/image/13774064/william-lee-uitvinder-van-breimachine-1868-1912-anonymousFree Image from public domain licenseBuilding with scaffolding, Place de La Madeleine by Hippolyte Bayard https://www.rawpixel.com/image/14312649/building-with-scaffolding-place-madeleine-hippolyte-bayardFree Image from public domain licenseBalance hydrostatic from Six Weeks Vacation by Paul Poire (1880). Original from the British Library. Digitally enhanced by… https://www.rawpixel.com/image/572601/scientific-apparatus-vintage-drawingFree Image from public domain licenseHoward's patent lever horse rake from The People's History Of Cleveland, And Its Vicinage, Etc. Pt. 1-4 published by… https://www.rawpixel.com/image/572505/agricultural-rake-mechanismFree Image from public domain licensePropeller from Six Weeks Of Vacation (1880) published by Paul Poiré. Original from the British Library. Digitally enhanced… https://www.rawpixel.com/image/573444/propellers-vintage-styleFree Image from public domain licenseWheel barometer from The Colliery Manager's Handbook... Fourth Edition, Revised And Enlarged published by Crosby Lockwood &… https://www.rawpixel.com/image/572414/machine-barometer-vintage-drawingFree Image from public domain license