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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 4333484 | Modified cellulosic smoking material and method for its preparation An improved smoking material affording reduced particulate matter and puff count yet having the flavor and aromatic qualities of natural tobacco, which comprises cellulosic material having incorporated therein a metal salt from the group consisting of cal... | 06/08/1982 |
| 4322067 | Article transfer apparatus Apparatus for transferring articles between a storage location and a point of use location in which a carrier arm fitted with suction cups is rotated and elevated from one position to bring its suction cups into engagement with the lowermost article in a ... | 03/30/1982 |
| 4301817 | Method for selective denitration of tobacco A process for treating tobacco to reduce the delivery of various gas phase components, during combustion of tobacco products is disclosed. The process comprises contacting tobacco material with an aqueous solution to form a tobacco extract. After separati... | 11/24/1981 |
| 4296804 | Corrosion resistant heat exchanger element and method of manufacture A heat exchanger element is provided with small-bore copper tubing jacketed with perfluoroalkoxy resin wherein the ends of the jacketed copper tubing are each telescoped over the end of a stainless steel nipple having a raised shoulder at its end and an a... | 10/27/1981 |
| 4292872 | Apparatus for perforating hollow cylinders Hollow cylinders of relatively rigidized paper are perforated in closely spaced circularly extending, axially spaced rows by perforating adjacent ones of the rows from opposite sides on the cylinders. Apparatus for perforating the cylinders uses a fixed r... | 10/06/1981 |
| 4293583 | Process for debittering a protein hydrolysate and the debittered hydrolysate obtained by this process The invention relates to the treatment of protein hydrolysates with a view to reducing their content of bitter substances. This process comprises contacting the hydrolysate with a solid ligneous adsorbent of vegetable origin, for example based on carob, and co... | 10/06/1981 |
| 4292381 | Battery construction for uniform electrode current density A battery construction comprising positive and negative electrodes provided with tabs, the tabs of the positive and negative electrodes being arranged relative to one another and being of sufficient extent to enable the promoting of uniform electrode curr... | 09/29/1981 |
| 4281321 | Surveillance system employing a floor mat radiator A floor mat consisting of a conductive grid laminated to a conductive sheet with a layer of dielectric material therebetween to form a capacitor is disposed between the pedestals that house means for radiating a microwave signal through a surveillance are... | 07/28/1981 |
| 4279978 | Battery separator employing zinc selective additive materials A separator for use in an alkaline battery having a zinc electrode wherein the separator comprises a polyamide constituent, a wettable polymeric constituent and a filler material reactive with zinc.... | 07/21/1981 |
| 4278100 | Method and apparatus for separating tobacco from rejected cigarettes Tobacco in cigarettes rejected in the cigarette manufacturing operation is recovered by subjecting the cigarettes to a series of ripping actions which open the wrappings to expose the tobacco and a series of screening operations which result in effective ... | 07/14/1981 |
| 4278696 | Deacidifying coffee extract with chitosan The invention relates to a process for deacidifying a coffee extract without the introduction of foreign products by selective absorption with a natural material, chitosan. In this process, the extract is contacted with chitosan in divided form and the de... | 07/14/1981 |
| 4277250 | Methods for detecting and quantifying occult blood A method for detecting occult blood in aqueous samples of human specimens, particularly aqueous suspensions of fecal matter is disclosed. The method comprises acidifying an aqueous test sample, which in the case of fecal matter has been treated with lysoz... | 07/07/1981 |
| 4276356 | Matrix member for containing fuel cell acid electrolyte A matrix member for carrying the acid electrolyte of a fuel cell comprised of a first layer containing a carbon material and a second layer containing a silicon carbide material. A further matrix member is disclosed wherein the mean pore size of the membe... | 06/30/1981 |
| 4274427 | Method of increasing filling power of tobacco products Through interaction with the pectinaceous materials of tobacco smoking products, increased filling power of tobacco constituents is accomplished, in accordance with the present invention, by means of maintaining the tobacco, usually in shredded form, in a... | 06/23/1981 |
| 4273404 | Resiliently supported electrical floor installation An electrical installation in a floor of a building for providing electrical power to telephones, computer terminals and other electrical equipment has a floor plate mounted substantially flush with the floor of the building. The installation comprises an... | 06/16/1981 |
| 4273791 | Taco shell manufacturing process featuring ageing tortillas by tempering for relatively short time in low pressure steam chamber A process for making fried taco shells. Disc tortillas are formed from a sheet of ground corn masa dough, and the formed disc tortillas are passed laterally through a heated baking oven on laterally moving open web support means in successive, appreciably... | 06/16/1981 |
| 4272553 | Process for preparing coated fried vegetables The invention is concerned with a process for the preparation of fried vegetables, particularly fried vegetables to be frozen. The process comprises coating pieces of the vegetable with a starch-containing product, blanching the coated pieces with steam and de... | 06/09/1981 |
| 4271201 | Manufacture of cheeses Cheese is produced by a process wherein milk is subjected to partial ultrafiltration, heat denatured serum proteins are added to the milk before or after ultrafiltration, the milk is coagulated to form a curd wherein 1/4 to 1/2 of the total serum proteins... | 06/02/1981 |
| 4268002 | Mould for packaging desserts The invention relates to a mould of the type shown in FIG. 3. The mould for packaging desserts, particularly ice-cream cake with coating syrup, is in the form of a cup comprising an opening through which the dessert is introduced into and removed from the... | 05/19/1981 |
| 4266562 | Process for puffing tobacco Tobacco having at least about 6 percent moisture is impregnated with ammonia and carbon dioxide to introduce into the tobacco preferably from about 3 percent to about 6 percent by weight of ammonia and from about 3 percent to about 8 percent of carbon dio... | 05/12/1981 |
| 4265924 | Whey protein recovery The present invention relates to a process for recovering proteins from lactoserum. This process comprises subjecting a lactoserum to a heat treatment to denature the proteins present in it and then separating the denatured proteins from the other non-fat... | 05/05/1981 |
| 4263773 | Beet topping device A beet topping device transportable over the ground, comprising a frame, a polygonal construction, in particular a quadrangular construction or quadrangular linkage movably connected to the frame, via at least one pivot shaft and variable in position rela... | 04/28/1981 |
| 4262576 | Percussion instrument striking apparatus A foot-operable striking apparatus for actuating a beater to strike a percussion instrument. The apparatus includes a pivotally mounted pedal having a toe-retaining clip overlying its toe portion. The pedal is pivotally mounted at its heel portion, so tha... | 04/21/1981 |
| 4263450 | Process for separating leucine, isoleucine and valine A solution of leucine, isoleucine and valine is concentrated at a pH-value of from 1.5 to 2.0 to produce a mother liquor enriched with isoleucine and valine and a solid phase enriched with leucine. Concentrated hydrochloric acid is added to the mother liq... | 04/21/1981 |
| 4261790 | Apparatus for stripping filter paper from filter rod The sheath covering of a composite structured article is removed from the filler it encircles by slitting the sheath longitudinally at plural locations, the sheath thereafter being vacuum drawn away from the filler for discard while the filler is advanced... | 04/14/1981 |
| 4259017 | Methods for use in definition of object surfaces In a method for defining the spatial location of points comprising an object surface, radiant energy is projected onto the object in successive steps with the energy projected in each step having a unique change in intensity with distance along an axis ex... | 03/31/1981 |
| 4258729 | Novel tobacco product and improved process for the expansion of tobacco A novel tobacco product comprising tobacco containing gaseous carbon dioxide in an amount of at least 1 part of gaseous carbon dioxide per 100 parts of tobacco. The product, when rapidly heated is converted to expanded tobacco. An improved process for the... | 03/31/1981 |
| 4259053 | Apparatus for agglomerating powder-form material The invention provides an agglomeration apparatus comprising an agglomeration chamber, a distributor for particles to be agglomerated feeding said chamber, means for projecting a stream of moistening fluid onto the particles and into the chamber, a fixed ... | 03/31/1981 |
| 4257494 | Safety brake for elevators and aerial cableways A safety brake is provided for elevators, aerial cableways and the like which prevents unchecked downward travel of the cable car or the elevator cabin in case the lifting or drive cable breaks, or the transmission gear mechanism or the drive motor fails.... | 03/24/1981 |
| 4256216 | Apparatus for ejecting objects from a conveyor line On a conveyor belt, an ejection mechanism ejects objects travelling thereon which do not fulfill predetermined requirements as detected by a detecting device. To speed up the return of the ejection mechanism to its home position, the ejection cycle is div... | 03/17/1981 |
| 4256123 | Smokable material containing thermally degraded tobacco by-products and its method of preparation A method of producing a smokable material containing tobacco by-products, such as stems or stalks, having reduced particulate matter, particularly, tar and nicotine, and which additionally has no undesirable "woody taste" is disclosed. The method for prod... | 03/17/1981 |
| 4256126 | Smokable material and its method of preparation A method of producing a smokable material having reduced particulate matter, particularly tar, nicotine and puff count, while still maintaining the desirable characteristics of a smoking material is disclosed. The method comprises pyrolyzing a carbohydrat... | 03/17/1981 |
| 4254868 | Enclosure for a security tag and extraction implement An enclosure of tough tear resistant plastic accepts a rectangular lamelliform electronic surveillance component through a slot in a paper panel and secures same by pressure sensitive adhesive to a flat surface of an article such as a phonograph record ja... | 03/10/1981 |
| 4253910 | Ornamental mirror and apparatus and method for making same Linear means, particularly for producing a mirror having a discrete transparent portion of a desired shape, configuration or ornamentation and having a backing which may have a discrete image of corresponding shape, configuration or ornamentation affixed ... | 03/03/1981 |
| 4253929 | Method for denitration of tobacco employing electrodialysis A process for denitrating tobacco with minimal losses of desirable tobacco solubles employing electrodialysis is disclosed. The process comprises subjecting an aqueous tobacco extract to membrane electrodialysis such that nitrate salts are extracted, with... | 03/03/1981 |
| 4251977 | Method of automatically packing end closures for cans in paper bags End closures for cans fed horizontally at given intervals at a high speed are shifted in direction, one after another, to be substantially perpendicular to a support passage extending substantially horizontally, received separately by the passage rapidly ... | 02/24/1981 |
| 4252585 | Method for making a plastic container Plastic containers include a shell an open end of which is sealably closed by a closure member having a peripheral hinge portion secured to the shell and an inner expanse which may be bowed axially of the shell. The closure member is unfolding or deformab... | 02/24/1981 |
| 4250679 | Frame structure having reinforced joints A framing structure comprises a vertical post of hollow metal tubing having an aperture for receiving a horizontal cross-member also of hollow metal tubing. A slot is formed near one end of the cross-member to hook onto the bottom edge of the wall definin... | 02/17/1981 |
| 4251559 | Decaffeination process Caffeine is extracted from solutions thereof with supercritical carbon dioxide having a density of at least 0.85 g/ml.... | 02/17/1981 |
| 4250898 | Carbon dioxide impregnation of tobacco by super cooling A process for impregnating tobacco with carbon dioxide is provided. The process comprises: (a) contacting tobacco with carbon dioxide gas at relatively low pressure (b) rapidly cooling the tobacco-carbon dioxide system until the carbon dioxide condenses a... | 02/17/1981 |
