Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Pratt or search for Pratt in all documents.

Your search returned 19 results in 6 document sections:

he beverage and mingling it with the flavoring syrups, etc. See soda-fountain. Warker's bottle for aerated liquids. In the bottle for aerated liquids, patented by Warker, March 18, 1862, the spout of the metallic fountain-head is lined with glass to keep the liquid from contact with the metal. The shoulder on the top edge of the neck, the alternate grooves, and the ridges on the neck are used to strengthen the attach- ment of the metallic cap to which the fountain-head is screwed. Pratt's aerator. In Pratt's apparatus for aerating liquids, September 10, 1867, the plunger has a concavity which carries down the air; the latter is expelled as the plunger reaches the convex bottom, and is driven through the holes in the tube and disseminated through the liquid in the outer vessel. Meglone, August 14, 1866. The tube is introduced through the cork; the liquid enters holes at its lower end, and is discharged at the goose-neck, when the stopcock is opened. The bottle may b
as it is dipped out, and allow it to drain into the kettles. In the illustration the pan bottom is double, forming a steam-jacket; the multiflue boiler forms a jacket around the fuel-chamber. The flame and heat, after direct passage through the flues, pass backwardly alongside the furnace-jacket and beneath the steam-jacket of the pan. The following United States patents may be consulted:— Guiteau1842.Garrison1862. Hull1855.Hull1863. Humphreys1856.Farrar1863. Heims1859.Platt1869. Pratt1862.Gilson1870. Chapin1862.Howarth1871. Brine-pump. (Steam-engine.) A pump worked by the engines to withdraw the super-salted water from the boilers mechanically, instead of by periodical blowing off. Maudslay and field's English Patent, 1824<, describes a brine-pump with a loaded dischargevalve worked by the engine, and so proportioned as to draw from the lower part of the boiler the quantity determined on, which may be regulated by a meter, showing the quantity driven off in t
d, heated, rolled, and annealed. No. 33,844, McDaniel and Harvey, 3, 12, 1861. Vacuum pressure in the removal of acid liquor, and subsequent alkaline treatment. No. 34,294, Dixon, 4, 2, 1862. Rolled plates scaled by acid bath; washed with adhesive, or rye-water; swabbed at less than a red heat with an enamel composition; kept at that heat for ten hours in an oven; sheets placed in an annealing-box with interposed charcoal-dust, and heated; rolled in packs and annealed. No. 46,974, Pratt, 14, 2, 1865. Sheet-metal immersed in acid bath at a prescribed heat; removed, scrubbed, and immersed in alkaline bath; brushed with rotary brushes while wet; heated to dryness; immersed in oil bath at 100° to 150° Fah.; dripped, and passed between polished steel-rollers; buffed by leather-rollers and chalk-dust; colored over charcoal furnace. No. 48,918, Ells, 25, 7, 1865 Sheets annealed; placed loosely in a cast-iron box, with scale of oxide, animal charcoal, coke, lime, or other decar
for reasons explained farther on. Fig. 4854. Pratt's running-stitch machine. Next in order ofr. 20, 1855. 12,798StedmanMay 1, 1855. 16,554PrattFeb. 3, 1857. 16,745PrattMar. 3, 1857. 17,930PrattMar. 3, 1857. 17,930HerronAug. 4, 1857. 18,000WatsonAug. 11, 1857. A. 1. (c.) Vibrating Loop-Taker (continued). ly 26, 1859. 24,937HaydenAug. 2, 1859. 25,043PrattAug. 9, 1859. 25,059TapleyAug. 9, 1859. 25,22pr. 23, 1867. 68,420DollSept. 3, 1867. 89,501PrattApr. 27, 1869. 91,149MillerJune 8, 1869. 101,June 9, 1863. 38,927CookJune 16, 1863. 40,853PrattDec. 8, 1863. 44,686DaleOct. 11, 1864. 127,571866. 65,052Booth et al.May 28, 1867. 111,678PrattFeb. 7, 1871. 116,113StrangeJune 20, 1871. 12. 9, 1858. 24,000BartholfMay 17, 1859. 26,537PrattDec. 20, 1859. 27,948CrossApr. 7, 1860. 29,13 21, 1871. 126,199GibbsApr. 30, 1872. 126,488PrattMay 7, 1872. 127,114SpeirsMay 21, 1872. 128,8st et al1872 59,103.Washburn et al1866123,508.Pratt1872 65,077.Harlow et al1867125,809.Grout1872 [3 more...]
7,771.EddyNovember12, 1850. 8,980.JonesJune1, 1852. 10,995.ThomasMay30, 1854. 14,907.CooperMay20, 1856. 14,919.JonesMay20, 1856. 15,164.BeachJune24, 1856. 18,504.FrancisOctober27, 1857. No.Name.Date. 22,423.HargerDecember28, 1858. 38,815.De MeyJune9, 1863. 39,296.LivermoreJuly21, 1863. 57,182.PeelerAugust14, 1866. 59,522.FlammNovember6, 1866. 62,206.JohnstonFebruary19, 1867. 65,807.HallJune18, 1867. 79,265.Sholes et alJune23, 1868. 79,868.Sholes et alJuly14, 1868. 81,000.PrattAugust11, 1868. 87,941.JohnsonMarch16, 1869. 94,329.MooreAugust31, 1869. 109,161.WashburnNovember8, 1870. 115,287.DraperMay30, 1871. 118,491.SholesAugust29, 1871. 124,437.HalsteadMarch12, 1872. 125,952.HansenApril23, 1872. 127,739.CadmusJune11, 1872. 133,841.EdisonDecember10, 1872. 139,914.PemberJune17, 1873. 140,921.HillJuly15, 1873. 144,450.GallowayNovember11, 1873. 148,946.GallyMarch24, 1874. 158,071.HansenDecember22, 1874. 168,898.HansenOctober19, 1875. 169,757.AlissoffNov
length of wire. Admirable examples are to be found in the American Watch Company's works at Waltham, where jewel and other screws are made by perfectly automatic operations from wire fed from spools. Fig. 7276 shows one on a larger scale by Pratt and Whitney, of Hartford, Conn. Wire-fence. Hurdles of woven wire, or wire stretched from post to post. Fig. 7277 shows one form in which the sections are strained between movable self-supporting posts. In Fig. 7278, the wires are att-bars at top, and a triangular trestle supports each corner transversely. The capstan-blocks are separate, so as to allow the independent tightening of each wire, and are turned by radial arms which are secured by wires to the nearest post. Pratt and Whitney's wire-feed screw-machine. Fig. 7279 is an iron post for wire-fences. The posts are made of strap-iron bent around at the top and spread at the bottom; the sides are connected by stay-rods, and are braced at the angle near the fo