baber/WOPTO huggingface dataset:
Patent GB-167051-A (GB)
Title: Improvements in or relating to regulating mechanism for refrigerating apparatus
IPC: F25B49/02
Filed: 1920-06-15
Abstract: 167,051. Kilburn, B. E. D., (Sulzer Akt.- Ges., Geb.). June 15, 1920. Closure members, compound.-In a compression refrigerating machine a receiver in the form of a rotary valve member e, Fig. 1, is employed to supply the evaporator coil with a mixture of liquefied gas from the condenser and from a separator on the suction side of the evaporator, the receiver chamber being put into communication successively with the vapour space of the separator by pipes d<1>, d<2>, when it is drawing in liquefied gas first from the separator and then from the condenser, and with the compressor discharge by a pipe d<3> when discharging liquefied gas into the evaporator. The valve member e is continuously driven by worm gearing f, g, from the compressor or from a separate motor, and may be formed with packing ribs n engaging grooves in the body and cover of the casing. A port h in the base of the valve successively registers with the liquid inlet ports c<1>, c<2> and the delivery port c<3>, and a port i at the top registers with the passages d<1>, d<2>, d' leading to the vapour spaces. Lift valves k<1>, k<2>, k<3> located in these passages are actuated by a cam surface l on the valve member. A pressure gauge may be connected on the pipe o.
Patent GB-718654-A (GB)
Title: Device for making calculations relating to combustion processes
IPC: G06G1/14
Filed: 1952-06-27
Abstract: 718,654. Calculating-apparatus. SOC. FRANCAISE DES CONSTRUCTIONS BABCOCK & WILCOX, VERON, M., and DUMEZ, A. June 27, 1952 [June 30, 1951], No. 16307/52. Class 106 (1) A device for making calculations relating to combustion comprises a disc having an inner circular area A bearing Archimedean spirals re- )ating to the content of carbon dioxide in combustion gases and an outer annular area B bearing two groups of Archimedean spirals crossing each other and relating to the carbon monoxide and oxygen contents in the combustion gases, a bar 11 centrally pivoted on the disc and a slide 12 bearing a scale 13 of the contents of carbon dioxide in the neutral combustion gases slidable along the bar and carrying a cursor 15. The equations for the spirals are derived and it is shown that the radial distance from an inner curve representing a particular carbon dioxide content to the intersection of the outer curves representing particular oxygen and carbon monoxide contents corresponds to the carbon dioxide content in the neutral combustion gases. The scale 13 may bear index marks for this constant for certain selected fuels. A further scale 14 on the slide 12 enables the radial distance from point of the intersection of the outer curves representing particular oxygen and carbon monoxide contents to the circle dividing the areas A and B to be measured, this distance corresponding to the latent heat loss. The sensible heat loss is represented by the angular position of the point of intersection which is indicated on a peripheral scale. Further spirals in the outer area relate to the excess or lack of air. The arm 11 is transparent and rotatable about a hub 01, which is pierced to enable the device to be suspended. A friction clip 17 prevents accidental rotation. Blocks 18 protect the under surface of the disc on which are marked relevant data.
Patent GB-802053-A (GB)
Title: Improvements in or relating to the deposition of nickel on dielectric surfaces
Inventor: MARGOLIS DAVID SAUL
IPC: H01B1/00
Filed: 1956-05-25
Abstract: A method of applying a coating of nickel containing nickel phosphide to a surface of a dielectric material comprises first sensitizing the surface by depositing thereon by vacuum evaporation a thin layer of a metal, and then chemical depositing on the sensitized surface a coating of nickel/nickel phosphide from a hot bath containing an aqueous solution of a nickel salt and a hypo-phosphite, the vacuum evaporated metal being one which serves as a catalyst in the chemical deposition process. Aluminium, copper, silver, iron and nickel are suitable catalysts: in the case of copper or silver, it may be necessary to touch the sensitized surface with e.g. an iron rod to initiate the deposition.  The vacuum evaporation may be preceded by a surface cleaning as by ionic or electronic bombardment under vacuum. Specifically disclosed are the production of (i) electrodes on ceramic-type capacitors, (ii) electrodes on P.T.F.E. foil dielectric capacitors, and (iii) printed circuits; in the production of these articles, the dielectric surface may be appropriately masked during the sensitizing stage.
Patent GB-353161-A (GB)
Title: Display device
IPC: G09F3/04
Filed: 1930-05-27
Abstract: 353,161. Displaying. WASSER, J. J., 1012, South Grand Boulevard, St. Louis, Missouri, U.S.A. May 27, 1930, No. 16346. [Class 3 (ii).] A device for displaying advertisements &c. on bottles comprises a flat strip 1 of paper or other flexible material formed into a hollow open-ended tapered body with overlapping ends. The ends may be held together by a tongue 6 at one end engaging a curved slot 4, 5 at the other end. Alternatively both ends may have tongues, or be stitched, stapled, glued, or crimped together. The device may be conical or polygonal in form.
Patent GB-716350-A (GB)
Title: Improvements in or relating to the ismerisation of alkyl-aromatic hydrocarbons
IPC: C07C5/27
Filed: 1952-06-30
Abstract: Alkyl aromatic hydrocarbons containing at least 2 alkyl carbon atoms and not more than 3 carbon atoms in an alkyl group are isomerized by contacting, in the presence of a silica, alumina or silica-alumina base cracking catalyst containing 0.02-0.65, preferably about 0.1-0.3, per cent of platinum, at 300-540 DEG  C. and 2-75 atm., with at least 1 mol. of hydrogen per mol. of alkyl aromatic, the said reaction conditions being correlated so that the product contains 5-30 per cent of naphthenes.  Xylenes and dimethyl naphthalenes may be isomerized to their dimethyl isomers, xylenes to ethyl benzene, dimethyl naphthalene to ethyl naphthalene, trimethyl benzene to methyl ethyl benzene, and vice versa.  It is preferred to treat a single hydrocarbon or a mixture of two or more isomers removed from the equilibrium composition. Thus, a commercial xylene is fractionated to remove part of the o-xylene, part of the p-xylene is then separated by crystallization, and the residual mixture treated to isomerize m-xylene to further o and p which are separated. Non-isomerized and hydrogenated material may be recycled.  The cracking catalyst may be an acid-treated montmorillonite-type clay or a synthetic silica-alumina or silica-magnesia which may also contain boric oxide, aluminium phosphate, aluminium or magnesium fluoride. The platinum should be incorporated as by impregnating with a platinum salt, drying, and reducing, and not by mere admixture.  The amount of hydrogenation and consequent naphthene content increases with increasing partial pressure of hydrogen and decreasing temperature.  Naphthenes in the product may be determined by mass spectography and the reaction conditions regulated as required. In examples, ethyl benzene and commercial o-xylene are isomerized using alumina containing 0.31 per cent Pt, 0.17 per cent F and 0.42 per cent Cl, the products containing about 40 per cent of total xylenes in the first case, and of isomers of o-xylene in the second, and naphthenes equivalent to about 19 and 17 per cent. Temperatures are 470 DEG  and 465 DEG  C., pressures 50 atmos., liquid hourly space velocities 1.75 and 1.87, and hydrogen: hydrocarbon mol. ratios 5.9 and 6.3.
Patent GB-555483-A (GB)
Title: A tool for use in thatching ricks or for other operations
IPC: A01F25/10
Filed: 1941-12-19
Abstract: 555483 Thatching ricks RUSSELL'S (KIRBYMOORSIDE) Ltd and RUSSELL G E 19 Dec 1941 16415 [Also in Group VII] Index E1A 296 A tool for inserting wooden or other anchorage members 7 in a hay or corn rick comprises a tube 1 with handles 2 and a spring-restrained plunger 5 which may be depressed to expel the anchorage member after the tool has been driven into the rick. To make the anchorage member take up a transverse position the end 12 of the tube is bent, and the thatching cord 13 is wound round the anchorage to one side of the middle. The Provisional Specification is not restricted to ricks. Specification 440557, [Group VII], is referred to.
Patent GB-271275-A (GB)
Title: Improvements in connection with tins or like metal containers
IPC: B65D45/28
Filed: 1926-06-30
Abstract: 271,275. Gaynor, P. J. June 30, 1926. Lids; handles. - Relates to securing means for the covers of tins or can s provided with pivoted bail handles. A strip A of metal &c. of length slightly greater than the diameter of the tin and provided with holes E spaced apart a distance equal to that between the points of attachment B of the handle 0 is threaded thereover and the lid D placed in position with the strip drawn up against the handle as shown in Fig. 1. To secure the lid D, the strip A is forced down towards, it and the handle turned down into the position shown in Fig. 2.
Patent GB-246721-A (GB)
Title: An improved method of and means for keeping fresh, refreshing, preserving and cleaning rubber and guttapercha
IPC: B29C37/00
Filed: 1925-06-25
Abstract: 246,721. Strecker, O. June 25, 1925. Printing-surfaces ; impression-surfaces ; set-off, preventing. - Indiarubber or guttapercha sheets, rollers, &c. used in printing-processes are cleaned and preserved by rubbing with or immersion in castor oil, with or without the addition of other substances. Emulsions of the oil in water or solutions of it in alcohol are suitable for use. Specification 177,495, [Class 70, Indiarubber &c.], is referred to.
Patent GB-239006-A (GB)
Title: Improvements in and connected with locks
IPC: E05B63/04
Filed: 1924-07-09
Abstract: 239,006. Parkes, S. R. July 9, 1924. Locking sliding latches; latches, slidi n g ; reversible latches.-A latch-bolt is provided with a second spring at the end of its shank in addition to the ordinary shooting spring, to enable the latch head to be pulled forward beyond the foreend plate and turned through 180‹ for use with doors of either hand. The latch-bolt shank b<1> has a shooting spring b<2> and a second stronger spring b<3> at the end, operating between the head at the end of the shank and a relatively fixed projection d'. In the form shown the projection d<1> is on a slider D by which the bolt is retracted by the follower E. The spring b<3> enables the latch-head B to be pulled forward into the position shown in dotted lines and reversed. The latch-bolt is blocked by a key-operated bolt F sliding on pins f<1>, f<2> and having a tumbler H pivoted on it at h<1> and co-operating with the pin f<2> by means of its gate h<2>.
Patent GB-919420-A (GB)
Title: Improvements in or relating to apparatus for detecting the presence of a railway train
IPC: B61L1/18
Filed: 1960-05-10
Abstract: 919,420. Train detectors. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 10, 1960 [May 11, 1959], No. 16501/60. Class 105. The presence or absence of a train on an insulated rail section R 1 , R 2  is detected by apparatus comprising an A.C. supply source WB connected through the rails to a transformer T whose output is rectified, smoothed and controls the frequency of a generator G 1  which forms part of an indicator circuit. A mixing stage M mixes the output of G 1  with that of a stable generator G 3 , the output then being fed via a low-pass filter F 1  and a rectifier K 2  to the gate circuit P 1  which is included with the gate circuit P 2  in the energizing circuit of the relay VR. The relay H is energized by the output voltage of the filter F 1  so that the contact h is closed. The output voltage of the mixing stage M and the voltage of the generator G 2  are compared by the discriminator D 2  which supplies via the delay device V1 a control voltage to stabilize the frequency of the generator G 1 . The indicator is thus not sensitive to slow variations of P.D. between the track rails, but abrupt short-circuiting of the rails by a train entering the section causes the frequency output of the mixing stage M to rise rapidly to a value higher than the cut-off frequency of the low-pass filter F 1  de-energizing the relay H, thus increasing the frequency of the generator G 2  and blocking the gate circuit P 1 , de-energizing the indicating relay R 1 . Similarly abrupt deshorting of the tracks when a train leaves the section causes the relay h 1  to energize. For a D.C. supply source between the rails a pulse from a discriminator (Fig. 1, not shown) is fed to a bi-stable triggger circuit which controls a gate circuit to energize the indicating relay. In a further modification (Fig. 4, not shown) two absolute frequency discriminators tuned to two different frequencies are used alternately, the change over being effected by blocking or unblocking of gate circuits when a train enters or leaves the section.
Patent GB-1168930-A (GB)
Title: Improvements in Ink Webs
IPC: B41J33/518
Filed: 1968-04-05
Abstract: 1,168,930. Ink ribbons; ink webs. GUNTHER WAGNER PELIKAN - WERKE. 5 April, 1968 [8 April, 1967], No. 16569/68. Heading B6F. An ink ribbon or web 1, Fig. 2, for a typewriter or accounting machine is provided at its end with feed reversing actuators formed, respectively, by a pair of bars 2, 3 disposed on opposite sides of the ribbon and provided with staggered lugs 4 by means of which the bars are welded together, the welds forming beads 7 Fig. 6. In another embodiment (Fig. 1) only the bar 2 is provided with the lugs 4. In a further embodiment (Fig. 7) the welded bars 2, 3 are given an arcuate configuration which corresponds to the curvature of the spool.
Patent GB-1075197-A (GB)
Title: Toolcarrier adjusting device
IPC: B23B47/04
Filed: 1965-04-20
Abstract: 1,075,197. Boring bars; machine tool details; hollow spindles. KARL HULLER G.m.b.H. April 20, 1965 [April 17, 1964], No. 16641/65. Headings B3B, B3C and B3T. An adjusting device for tool carriers, particularly for boring bars for fine-boring machines, includes a boring spindle 4 journalled in a head-stock 40, a tool carrier 2 having a core portion 5 journalled in the end of the boring spindle 4 and eccentrically arranged therewith, and an adjusting bar means 8 for rotating the tool carrier 2 relative to the boring spindle 4 for adjusting the eccentricity of the tool 7 relative to the boring spindle axis 41. Adjustment is effected by a pressure-operated " pliers " lever device 13 which pushes adjusting bar 8 against springs 10 to free the core whereupon bar 8b is rotated the required amount. The rotation of the bar 8b may be manually operated or operated by a mechanism 21 which includes an electromagnet operating levers and pawls to turn incrementally ratchet wheels 22, 23. Limit switches and a time-delay relay may be used to control the whole operation. The joint between the adjusting bar 8b and the core incorporates a hinge which allows the tool 7 to be moved away from the work surface on retraction to prevent scoring of the said work surface.
Patent GB-145472-A (GB)
Title: Improvements in or relating to shutterings for concrete or masonry work
IPC: E04G9/02
Filed: 1920-06-19
Abstract: 145,472. Rabut, C. Sept.. 3, 1918, [Convention date]. Drawings to Specification. Reinforced-concrete walls.-Centerings of sheet metal, fibro-cement, reinforced concrete, &c. used in coasting in situ are left to form the final face of the structure. The inner surfaces of the centering may be provided with ribs or grooves to strengthen its connection with the structure, and the main centering may be connected by cross connections. The outer face of the centering may be previously covered with a coating to protect it from chemical action.
Patent GB-166968-A (GB)
Abstract: 166,968. British Thomson - Houston Co., Ltd., (General Electric Co.). April 24, 1920. Protective arrangements; thermal switches.- Electrical machines and apparatus are protected against small sustained overloads and heavy instantaneous overloads resulting in heating of the machines &c. by a thermal relay energized by the current carried by the machine &c. or a current proportional thereto and provided with thermally related elements having different thermal characteristics which co-operate to produce a resultant characteristic which is the same as that of the machine &c. to be protected so that the relay operates when any part of the machine &c. reaches the maximum allowable temperature. As shown in Fig. 1, the relay consists of two thermal contact strips 7, 8 secured to metal masses 3, 4 heated internally by coils 5, 6 carrying the load current. The heavy mass 3 corresponds to the iron parts of the device to be protected and the light mass 4 to the windings thereof. With small overloads, the iron slowly heats up and the mass 3 heats up correspondingly causing the strip 7 to bend slowly towards the strip 8. The conductors also heat up slightly and the mass 4 is correspondingly heated causing the strip 8 to move towards the strip 7 until, finally, the two strips engage one another, the relay is closed and the machine &c. disconnected. With heavy overloads, the strip 8 contributes the greater part of the closing movement. In a constructional form, in Fig. 4, the strip 8 and mass 4 are dispensed with, the strip 7 itself being given the same thermal capacity as the mass 4 and carrying the load current. The aluminium mass 13 corresponding to the mass 3 is in two parts 11, 12 insulated from one another by asbestos and the thermal strip 15 of V-form bridges the two halves. The load current passes through an internal coil 14 the other end of which is connected to the half 11 whence the current passes through the thermal strip to the other terminal on the half 12. The thermal strip co-operates with an adjustable screw contact 16 the position of which is indicated by a pointer in accordance with the maximum allowable temperature. The relay is enclosed in a casing open to the atmosphere and, with a low initial temperature, takes longer to operate.
Patent GB-905463-A (GB)
Title: Test sample carrier
IPC: A61B10/00
Filed: 1961-05-08
Abstract: 905,463. Urine sample carriers. MILES LABORATORIES Inc. May 8, 1961 [May 6, 1960], No. 16714/61. Class 49. A carrier for urine test samples comprises a folder having front and back sheets (3, 4) on the inside of each of which is a layer of moisture-absorbing material (6, 7) covered by a non-wettable porous screen (8) and a bibulous sampleabsorbing sheet (13) adapted to be folded between the non-wettable screens and having a preservative material deposited thereon. The numerals refer to Fig. 1 in which the sample-absorbing sheet 13 is divided by means of waterproof barriers 16 formed by impregnating the sheet with cellulose acetate or other plastic material dissolved in acetone. The moisture-absorbing material 6, 7 may be a sheet or package of porous cellulose or a pad of desiccant, e.g. silica gel. The screen may be of plastic or glass cloth. The sampleabsorbing sheet may be of cellulose. The preservative material may be phenyl-mercuric acetate, nitrate or carbonate and may be deposited by impregnation as a 0.1% aqueous solution and drying. The folder may be placed in a metal foil or plastic container and an envelope for mailing. In use, a diagnostic stick or tablet may be placed on a moistened section of sheet 13 or a section thereof may be cut off and the sample extracted with water for testing.
Patent GB-339294-A (GB)
Title: Improvements in anti-aircraft prediction apparatus
IPC: F41G5/08
Filed: 1929-05-31
Abstract: 339,294. Tristram, G. H., and Buckle, C. May 31, 1929. Gunnery-calculators; computing scales.-Antiaircraft data predicting apparatus of the clockcode type consists of a plotter a having a pivoted arm b moving over a clock dial furnished with a series of ellipses each representing for a given angle of sight the projection on a plane at rightangles to the line of sight of a, closed path in which the distance of any point from the centre represents to scale the distance through which the target travels at a given speed and for a given future time of flight; the centre of the ellipse representing the future position and the ellipse itself being the locus of the present position. To enable the vector arm to be laid on the future clock course, prediction clock-curves are provided on the outer annulus of the dial these being calculated on the assumption that the " dead " time is constant. A speed-comb f, adjustable about a pivot x on the arm b for speed of target, has a tooth corresponding to the. future angle of sight set to the appropriate clock-curve. The horizontal and vertical deflections are then obtained through the medium of a grid y by noting the intersection of a pointer e with the future angle-of-sight ellipse. To correct the future fuze-time and for speed of target, seeing that the ellipses are plotted for a particular fuze-time and speed, the pointer e is attached to a lazy tongs d carrying several pointers to suit higher or lower speeds and corresponding fuze-times. Instead of using the grid shown in Fig. 1 for obtaining the horizontal and vertical deflections, rollers mounted along and at right-angles to the vector arm may carry deflection charts, the speed and fuze correction being then obtained by adjusting a pointer to curves on a separate drum mounted on an extension of .one of the rollers. The future angle of sight, future fuze, and clock-course of target are obtained with the apparatus described in Specification 339,322, and the speed of target is estimated with the apparatus described in Specification 339,361.
Patent GB-597055-A (GB)
Title: Improvements in the production of hydrides of alkaline earth metals
IPC: C01B6/04
Filed: 1945-07-02
Abstract: Alkalne earth metal hydrides are produced by heating an alkaline earth metal, which may be in the form of ingots, in the absence of air and in the presence of a limited amount of hydrogen in a reaction zone to a temperature sufficiently high to initiate the reaction between the elements but insufficiently high to cause the metal to fuse, gradually feeding regulated amounts of hydrogen into the reaction zone as conversion of metal to hydride progresses and removing the latter from the zone in its unfused condition. Alternatively ingots of calcium may be confined in a container filled with hydrogen and a part of the charge heated (externally) until the reaction is initiated after which external heating is discontinued and the temperature regulated to maintain it between 300 DEG  and 750 DEG C.  Where hydrogen contains a gaseous diluent, e.g., carbonmonoxide or dioxide, or hydrocarbons, the conversion is conducted at such temperatures that hydrogen is selectively absorbed. According to one example in the production of calcium hydride, ingots of calcium are placed on a conveyer and moved through a furnace, provided with an atmosphere of hydrogen, at a speed sufficient to heat the surface of the ingots within the above temperature range, further moving the ingots into a cooler zone and regulating the dissipation of heat generated inside the ingots to maintain the above temperature range.