Search results
Results from the WOW.Com Content Network
The single-drum machine used a single drum for ink transfer to the stencil, and the dual-drum machine used two drums and silk-screens to transfer the ink to the stencils. The single drum (example Roneo) machine could be easily used for multi-color work by changing the drum – each of which contained ink of a different color.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Methods of copying handwritten letters Manifold stylographic writer, using early "carbonic paper" Letter copying book process; Mechanical processes Tracing to make accurate hand-drawn copies; Pantograph, manual device for making drawn copies without tracing, can also enlarge or reduce; Printmaking, which includes engraving and etching
When the solvent-impregnated paper comes into contact with the back side of the first sheet, it dissolves just enough of the pigmented wax to print the image onto the paper as it goes under the printing drum. One master can produce 40 or so good copies; after that, the copies gradually become paler as the colored wax is used up. [5]
The tabla consists of two small drums of slightly different sizes and shapes. [4] [12] Each drum is made of hollowed-out wood, clay or metal. The smaller drum (dayan/tabla) is used for creating treble and tonal sounds, while the primary function of the larger drum (baya/dagga) is for producing bass. They are laced with hoops, thongs and wooden ...
Rather than modeling writing as a creative process, the love letter algorithm represents the writing of love letters as formulaic and without creativity. [8] The algorithm has the following structure: Print two words taken from a list of salutations; Do the following 5 times: Choose one of two sentence structures depending on a random value Rand
A 33-inch drum can produce C 2 (the C below the bass clef), and specialty piccoli timpani can play up into the treble clef. In Darius Milhaud's 1923 ballet score La création du monde, the timpanist must play F ♯ 4 (at the bottom of the treble clef). Each drum typically has a range of a perfect fifth, or seven semitones. [6]
An 1844 patent replaced the reciprocating platforms used in earlier designs with a fixed platform served by rotating drums, and through a series of advances a complete rotary printing press was perfected in 1846, [5] and patented in 1847. It appeared in Edinburgh in 1851 and then traveled to London where it was used by the Times newspaper in ...