This patent model demonstrates an invention for a book-sewing machine which was granted patent number 100407. The patent shows a system of supports for the long slender paper-sewing needles, which were apt to break in use.
This patent model demonstrates an invention for an intaglio plate printing and embossing press which was granted patent number 272878. The patent describes a machine with automatic inking and wiping, and the means to print in stripes of multiple colors. The patent was the latest in a series on plate printing machines taken out by Hewitt and was submitted after his death by Minnie Hewitt, administratrix of his estate.
This patent model demonstrates an invention for a method of making printed copies from handwriting on paper. Sulphate of iron was added to ordinary writing ink. The completed writing was pressed onto a plate coated with sensitized gelatine, which received the image in a form that could be printed like a lithograph. The invention was granted patent number 223873. The patent model consists of a coated plate with an image. Both coating and image have deteriorated badly.
This patent model demonstrates an invention for crystallotypes, textured printed surfaces made from crystalline surfaces, which were used for security printing; the invention was granted patent number 209521. This invention produced crystallotype plates by means of electrotyping. The model consists of an electrotyped block.
This patent model demonstrates an invention for a stretcher frame for holding sheets of paper while multiple stencil designs were cut in them with a jigsaw. That patent was granted patent number 211988.
This patent model demonstrates an invention for a hand-lever printing press which was granted patent number 10717. The press is a self-inking hand press with a fixed bed. The paper was carried into position by a double frisket carriage with inking rollers. The carriage was propelled by a crank handle turned continuously in one direction.
This patent model demonstrates an invention for a type breaker which was assigned patent number 86968. This device broke the jets from the bodies of newly cast type and was intended to be attached to a typecasting machine. The patent was granted to Philip Heinrich, proprietor of the Ph. Heinrich type foundry in New York.
This patent model demonstrates an invention for a strong, compact inking pad for canceling or dating stamps and other devices; the invention was granted patent number 135949. The elastic stuffing of the pad was saturated with ink, which penetrated the cloth or chamois covering.
This patent model demonstrates an invention for a signature holding and presenting device which was granted patent number 232446. The invention was to be used with David McConnel Smyth's book-stitching invention (Patent 220312, 1879). The model is incomplete, only the folding metal signature holder and wooden carriage rack survive.
This patent model demonstrates an invention for a double-ended press; it was granted patent number 2793. The invention included a method of bringing two alternating beds into printing position. The patent could be applied either to a bed-and-platen press or to another cylinder press.
This patent model demonstrates an invention for an inking apparatus for platen presses where the platen gives a lateral motion to the ink-distributing plate. The patent is demonstrated on a platen jobber similar to one of Prouty's, patented in 1872. The new invention was granted patent number 141077.
This patent model demonstrates an invention for improvements to typesetting machines, specifically in the control of type traveling from storage channels to assembly point. The invention was granted patent number 244723. Both Patentees Lorenz and Johnson had a financial interest in the Burr typesetting machine (see Lorenz's earlier patents).
This patent model demonstrates an invention for a method of making perforated stencil sheets that were easy for the printer to read, and thus to use, by inking the edges of the puncture holes. The invention was granted patent number 192624.
This patent model demonstrates an invention for a system of hooks and springs for attaching pictures to their frames; the invention was granted patent number 59836.
This patent model demonstrates an invention for a press with a stationary bed which was granted patent number 15740. The cylinder followed an endless rack that lifted it for the return trip over the bed. This patent covered the Newbury Country Press, a small hand-powered printing machine that was popular with country newspaper shops in the 1860s.
This patent model demonstrates an invention for electroplating printers' type, electrotype plates, or stereotype plates with nickel; the invention was granted patent number 95053. The patent improved on a patent for nickel plating of type taken out earlier in 1869 by Isaac Adams, Jr.
This patent model demonstrates an invention for a web-fed cylinder press, printing on both strokes of the bed; the web of paper was fed intermittently to match the printing motion, then rewound on a receiving cylinder at the other end of the machine. The invention was granted patent number 9993.
This patent model demonstrates an invention for producing embossed letters on paper for communication between blind people; the invention was granted patent number 62206. Raised letters on plungers on a disk above the table were matched with sunken letter plungers below it. The paper was squeezed between the two types of plungers by treadle force.
This patent model demonstrates an invention for a crank-operated, self-feeding card press which was granted patent number 20039. A press based on this patent was produced for sale, and was demonstrated in the offices of the Scientific American in I860.