baber/WOPTO huggingface dataset:
Patent GB-885260-A (GB)
Title: Holders for stick form materials
Inventor: JOHNSON JOHN
IPC: A45D40/20
Filed: 1958-11-27
Abstract: 885,260. Chalk and like holders. STADIUM CHALK & CRAYON CO. Ltd. Nov. 27, 1959 [Nov. 27, 1958], No. 38285/58. Class 146(3) [Also in Group XVII] A holder for consumable stick material, e.g. chalk, comprises two telescopic members 1, 2, the outer member 1 being adapted to grip the stick 3 near the end used and the inner member 2 having a series of resilient steps 8 each adapted to abut the other end of the stick 3 in turn, the stick being advanced from one step to the next successively as the stick is consumed. The members 1, 2 are flexible and may be made from polythene or nylon. Projections 7 on member 2 engage slots 5 in member 1 to limit relative movement between the members. The member 1 is dimpled at 6 to grip the front end of the chalk stick 3. The stick is inserted in the holder from the rear end thereof and is pushed through two members until its own rear end abuts against the rearmost steps 12 in the member 2, as shown. When the front end of the stick has been worn down by use the members 1, 2 are gripped adjacent to the dimples 6 and at a flange 10 respectively and pulled apart to the extent allowed by the slots 5 whereby the rear end of the chalk is brought into abutting relationship with the first of the steps 8. The members 1, 2 are then returned to the position shown and the chalk is advanced relatively to the dimples 6 so as to be ready for further use. This operation is repeated until the chalk is used up.
Patent GB-812588-A (GB)
Title: Improvements in or relating to transmission measuring sets for electric communication circuits
Inventor: FROST IAN BARRY VAUGHAN
IPC: H04B3/48
Filed: 1956-12-14
Abstract: 812,588. Voltage, transmission level, measuring. STANDARD TELEPHONES & CABLES Ltd. Dec. 14, 1956, No. 38288/56. Class 37. In the receiver of a transmission measuring set, the A.C. signal is applied to the input 1, 2 of a two-stage transistor amplifier having a negative feedback path which includes a rectifier bridge 19 with a D.C. meter 20 across it. The negative feedback increases the output impedance so that the output is substantially independent of the input frequency over the range. Reference has been directed by the Comptroller to Specification 787,691.
Patent GB-1099307-A (GB)
Title: Dye mixture for dyeing fur skins black
Inventor: GRUENLER SIEGFRIED
IPC: C09B1/34
Filed: 1966-08-26
Abstract: Dye mixtures used for dyeing fur skins black comprise by weight 55 to 74% of a dye having the general formula <FORM:1099307/C4-C5/1> wherein R1 is a chlorine atom or a methyl, methoxy, amino, acetylamino or benzoylamino group which may contain halogen, methyl or a methoxy group in the phenyl group and R2 is hydrogen, a sulphonic acid or a sulphonamide group, 21 to 36% Acid Orange 7 (sulphonilic acid-->b -naphthol); 3.5 to 9.1% Acid Violet 15 and 1.5 to 3.9% Acid Violet 21 (triphenyl methane dyestuffs).ALSO:Fur skins, e.g. sheep, rabbit and musquash are dyed black using dye mixtures comprising by weight 55 to 74% of a dye having the general formula <FORM:1099307/D1-D2/1> wherein R1 denotes a chlorine atom or a methyl, methoxy, amino, acetylamino, or benzoylamino group which may be substituted in the phenyl group by halogen, methyl or methoxy, and R2 is hydrogen, a sulphonic acid or sulphonamide group, 21 to 36% Acid Orange 7; 3.5 to 9.1% Acid Violet 15 and 1.5 to 3.9% Acid Violet 21.
Patent GB-849715-A (GB)
Title: Improvements relating to dominoes
IPC: A63F9/20
Filed: 1958-11-28
Abstract: 849,715. Dominoes. FREEMAN, W.H., and PARDOE, W. H. May 26,1959 [May 28, 1958], No. 38405/58. Class 132(2). A domino consists of a plastic recessed body and a plastic closure for the recess, one part being transparent to make visible advertising matter in the recess. As shown in Fig. 2, a transparent closure 13 is adhesively secured in a longitudinal channel in the body 10. The long edges of the recess and closure may be formed with mating steps, the recess may have end walls, or the body 10 may be transparent, the domino pips 17 being on the outer surface of the opaque closure. As shown in Fig. 6, an I-shaped body 27 has two recesses one receiving a transparent closure 31 and the other a closure 28 having pips 29. As shown in Fig. 7, the transparent body 32 having pips thereon, has a longitudinal aperture 33 receiving body 34 forming the closure. The advertising matter may be impressed or engraved on one of the surfaces in the recess or carried on a paper strip in the recess.
Patent GB-815964-A (GB)
Title: Improvements in or relating to tape feeding apparatus
Inventor: WALLENS ANTHONY WALTER
IPC: H04L13/06
Filed: 1957-12-12
Abstract: 815,964. Electric telegraphy. CREED & CO. Ltd. Dec. 12, 1957, No. 38617/57. Class 40 (3). [Also in Group XVI] A tape feeding apparatus comprises a tape feeding device 3, means for charging a capacitor 8, control means operative when the tape is being fed for preventing the charge on the capacitor from reaching a predetermined value, and means operative when the charge on the capacitor reaches the predetermined value for operating an alarm. As shown, tape 2, unwound from a reel 1, is drawn by the feeding device 3 around a roller 4 and fed through a reperforator, not shown. The roller 4 is rotated during tape feeding, thus rotating a cam 5 which operates contacts 6 and 7 alternately. The capacitor 8 is charged through a resistance 10 and contact b1 from a power source 9. The contact b1 is closed by a relay B/1 energized during operation of the reperforator. The contacts 6 and 7 are shown by fixed contacts 12 and 13 and a movable contact 11 in Fig. 2, the contact 11 being actuated to and fro during tape feeding to connect a capacitor 15 alternately to the capacitor 8, and a resistance 16. The capacitor 15 is thus alternately charged from the capacitor 8 and discharged through the resistance 16. During normal tape feeding, the capacitor 8 does not become fully charged. However, if the tape stops, such that the contact 11 is disengaged from contact 13, the capacitor 8 becomes charged to a predetermined value and operates a gas-filled tube 17 connected to a relay A/I. Similarly, if the tape stops with contacts 11 and 13 engaged both capacitors 8 and 15 are charged and subsequently operate the tube 17. Actuation of relay A/1 causes closure of contact a1, thereby completing a circuit to a lamp 19, thus giving a warning of incorrect feeding. The relay A/1 is reset by manual operation of contacts 18.
Patent GB-1162487-A (GB)
Title: Integrated Circuit Planar Transistor.
IPC: H01L29/00
Filed: 1968-08-14
Abstract: 1,162,487. Semi-conductor devices. RADIO CORPORATION OF AMERICA. 14 Aug., 1968 [17 Nov., 1967], No. 38844/68. Heading H1K. In an epitaxial transistor comprising, on a substrate 2, a collector 4 contiguous with the substrate, a base region 12 formed in the collector and an emitter region 14 formed in the base, there is provided in the substrate a region 30 of higher conductivity than the adjacent material which is so shaped that it is disposed only opposite that portion of the base region over which the emitter region does not lie, thus preventing the formation of imperfections and the spread of impurities in the base region under the emitter during fabrication but reducing the collector path resistance. The transistor is of silicon with boron, and arsenic or antimony as impurities. Contacts 16, 18 and 20 are vapour deposited aluminium.
Patent GB-806423-A (GB)
Title: Improvements relating to frequency multipliers
IPC: H03B19/03
Filed: 1956-12-20
Abstract: 806,423. Changing frequency and wave shapes. GENERAL ELECTRIC CO. Dec. 20, 1956 [Dec. 23, 1955], No. 38872/56. Class 38 (2). A frequency multiplier for supplying a load 15 with a voltage wave which has an effective frequency which is a multiple of the frequency of the input voltage at terminals 16, 17, comprises an input section formed by a saturable inductor 11 and a capacitor 14 connected in series with load 15 across the input terminals and one or more succeeding sections each formed by a saturable inductor 19, 24, 29, 33, connected in series with a capacitor 22, 27, 32, 35 across the capacitor of the preceding stage. When the input is a square wave, Fig. 3a, the load receives each half-wave, a train of unidirectional pulses, Fig. 3b, equal in number to the number of sections, their direction reversing with the direction of the input wave. These pulses occurs a the inductors successively saturate to charge their associated capacitors. Variations in core characteristics, bias applied and magnitude and shape of the input wave alter the rate of occurrence of the pulses, and the envelope into which they fit. The train of pulses may be rectified and supplied to load 47 through bridge 43, 44, 45, 46, and the D.C. component may be removed by connecting a filter circuit 49, 50, 51 across the output of the rectifier bridge. The final high-frequency output wave at terminals 52, 53 may be shaped by an impedance connected across these terminals.
Patent GB-1285340-A (GB)
Title: Process for the manufacture of polyesters and polyurethane foams
IPC: C08G18/00
Filed: 1969-08-04
Abstract: 1285340 Liquid polyesters; polyurethanes INTER-POLYMER RESEARCH CORP 4 Aug 1969 [14 Aug 1968] 38973/69 Headings C3C and C3R A polyester which is liquid at 20-30‹ C. and which contains 10 to 70% by weight of the epsilon-oxycaproyl unit [-O-(CH 2 ) 5 -C(O)-] is prepared by reacting a material which will provide the epsilon-oxycaproyl unit with a dicarboxylic acid or anhydride, a glycol and a triol or tetrol, the proportions of the reactants being such that the resultant polyester has the required content of epsilon-oxycaproyl units. The epsilon-oxycaproyl units may be supplied by epsilon caprolactone or by 6-hydroxycaproic acid or an oligomer thereof. The dicarboxylic acid or anhydride may be adipic acid, succinic acid, glutaric acid, pimelic acid, azelaic acid, an anhydride or mixture thereof, and the glycol may be ethylene, propylene, diethylene, dipropylene, 1,3-butylene or neopentylene glycol. The triol or tetrol may be glycerol, 1,2,6- hexanetriol, trimethylolpropane, pentaerythritol or alpha-methylglucoside, and is preferably used in an amount of 0À1 to 5 weight per cent based on the total reactants. The reaction is preferably carried out in the presence of 5 parts per million to 0À3 weight per cent of an esterinterchange or polyesterification catalyst, and at a temperature of 100‹ to 300‹ C. A flexible polyurethane is prepared by reacting a polyester of the invention with at least one organic polyisocyanate, at least one blowing agent, at least one catalyst, and a surfactant. The polyisocyanate may be 2,4- or 2,6-toluene diisocyanate or a mixture thereof, a diphenylmethane diisocyanate, a polymeric condensation product of formaldehyde and aniline or orthotoluidine or a mixture of a diphenylmethane diisocyanate with its carbodiimide. The blowing agent may be water, a halogenated aliphatic hydrocarbon having a boiling point of - 40‹ to 70‹ C., a low-boiling hydrocarbon, carbon dioxide or a mixture of water with one of the other blowing agents. The catalyst may be a tertiary amine, a metallic catalyst or a mixture thereof. When the polyester contains 35 to 72% of the epsilon-oxycaproyl unit, the surfactant may be a siloxane-oxyalkylene copolymer containing 15- 30% of the polysiloxane, and when the polyester contains 10 to 35% of the epsilon-oxycaproyl unit, the surfactant may be a polyoxypropylene-polyoxyethylene copolymer, a nonylphenol-ethylene oxide adduct, an alkoxysilane, a polysilyl phosphonate, a polydimethylsiloxane, a metal soap or an alkali metal sulphonate.
Patent GB-1530849-A (GB)
Title: Deacidification of wine
IPC: C12G1/00
Filed: 1977-09-19
Abstract: Wine or must is deacidified by adding calcium carbonate as a result of calcium tartrate being formed as crystals which are separated off from the beverage. The crystallisation is assisted by adding crystal seeds on which the tartrate crystals can accumulate. For this process, which results in the reliable prevention of subsequent turbidity and crystallisation, to be carried out more rapidly, the crystal seeds are added, prior to the addition of calcium carbonate or essentially at the same time as this addition, as contact crystals in powder form in a quantity of at least 2 g per litre of beverage. These crystal seeds are maintained in suspension in the beverage for a contact time of at least one hour. In this way, the resulting calcium tartrate can accumulate on the contact crystals and subsequently be separated off in association with them. A suitable appliance for carrying out the process has, one after the other in the direction of flow and between a storage container (A) for the beverage and a recipient container (B) for the treated beverage, devices for adding the contact crystals (4) and the calcium carbonate (5), a reaction container (6) provided with stirring equipment, a temperature-determining system (8, 9) for heating or cooling, and a mechanical separation device (11). <IMAGE>
Patent GB-1514730-A (GB)
Title: Selector switch arrangement
IPC: H01H67/26
Filed: 1975-09-23
Abstract: 1514730 Electric selectors TELEFONAKTIEBOLAGET L M ERICSSON 23 Sept 1975 [27 Sept 1974] 39023/75 Heading H1N A contact arrangement of a selector switch has contact blades 2 with transverse contact members 3 thereon co-operating with members 6 transverse to the members 3 and mounted on a common member 7 which is retained in a frame 1 by its engagement in recesses 11, 12. The member 7 may be a strip (Fig. 2, not shown) or a wire with bars forming the crossmembers 6 or a wire bent to form the members 6 (Figs. 3 and 4, not shown).
Patent GB-1018120-A (GB)
Title: Improvements in the electrodeposition of copper
Inventor: SUCH TONY EUGENE
IPC: C25D3/38
Filed: 1963-10-03
Abstract: An acid copper sulphate plating bath includes two classes of compounds, (1) compounds having a group <FORM:1018120/C6-C7/1> e.g. thiourea or thocarbamic acid, and (2) compounds derived from triazine of formula in which R1=R2= an alkyl group of 4 C atoms or less and X=halogen.  Examples are: 2,4-bis-(ethylamino) 6-chloro-1,3,5-triazine, and the 4-isopropylamino-derivatives. Current densities of 8-50 A.S.Ft. are applied.  About 0.03-0.5 g. per litre of the second compound and substantially less of the first are used.
Patent GB-819624-A (GB)
Title: Methods of increasing the corrosion-resistance of soldered metal assemblies
IPC: C23C22/24
Filed: 1957-12-16
Abstract: A method of increasing the corrosion resistance of a composite assembly joined with a tin/lead base solder comprises treating the clean surfaces of the assembly with an aqueous solution containing 20 to 75 grams per litre of hexavalent chromium (expressed as CrO3) and at least 0.3 gram equivalents per litre of the anions of a mineral acid stronger than chromic acid, the solution having an acidity of from 0.2 to 1.0N to Brom cresol green.  The assembly may be cleaned by rinsing in hot water and then treating with a dilute mixture of hydrofluoric and nitric acids.  The hexavalent chromium may be supplied by chromic acid, or ammonium, sodium or potassium chromates or dichromates and the acid anions by hydrochloric, nitric or sulphuric acids or their soluble salts.  The assembly may be dipped into the solution, maintained at 70-80 DEG F., for 0.5 to 1.5 minutes.  The solution may be replenished with a different acid to that with which it was made up.  The process may be applied to an assembly of copper soldered to aluminium.
Patent GB-1191875-A (GB)
Title: Improvements in Suspensions for Crane Booms, Particularly Mobile Crane Booms
Inventor: THALIN GUNNAR
IPC: B66C23/82
Filed: 1967-08-24
Abstract: 1,191,875. Jib cranes. G. THALIN. 24 Aug., 1967 [31 Aug., 1966], No. 39115/67. Heading B8B. A crane comprises a boom 1 having connected to it tie cables 2 and having mounted on it a member 6 engaging the cables 2 so that any tendency of the boom to deflect laterally is counteracted by the cables. The member 6 may be detachably secured to and movable along the boom and is in the form of a frame having side portions for engagement with the cables 2. In a modification, Fig. 3 (not shown), each side portion of the frame forms a slit through which the associated cable 2 extends.
Patent GB-951878-A (GB)
Title: Improvements in or relating to agriculture machines
IPC: A01D27/04
Filed: 1962-10-16
Abstract: 951,878. Root-crop harvesters. M. C. WIELAARD, W. A. WIELAARD, and M. OSSEVOORT. Oct. 16, 1962 [Oct. 17, 1961], No. 39173/62. Heading A1F. A root crop harvester comprising two wheels 3, 4 for lifting crops on to conveyers 5, 6 is characterized in that the wheel 4 is positively driven from the power takeoff 22 of a tractor via a speed regulator 16. The wheels are adjustably mounted on a frame 10 adapted to be supported on the lift links of a tractor so that the wheels are disposed to one side of the tractor. A cleaner disc 21 with rubber spokes 20 cleans the heads of the crop before it is lifted. Specification 848,939 is referred to.
Patent GB-938832-A (GB)
Title: Process for the manufacture of aldehydes, ketones and carboxylic acids from olefines
IPC: C07C51/25
Filed: 1959-11-19
Abstract: Aldehydes, ketones and carboxylic acids are obtained by reacting an olefine with oxygen or a gas containing oxygen in a neutral to acid medium in the presence of water and a catalyst comprising a salt of palladium, iridium, ruthenium, rhodium or platinum, and a salt of a metal which can exhibit different valencies under the reaction conditions and which during the reaction conditions is reduced to another metal compound but not the metal itself, the gaseous and vaporous portions of the reaction products, after leaving the reactor, being contacted with one or more metals and/or metal alloys which have a potential in the electromotive series more positive than -1.7 and more negative than the noblest components of the catalyst. Salts of metals which may exhibit different valencies are, for example, those of copper, mercury, cerium, thallium, tin, lead, titanium, vanadium, antimony, chromium, molybdenum, uranium, manganese, iron, cobalt or nickel.  The metals or alloys of an electrochemical potential above -1.7 should have a large surface area and suitable ones are iron, iron alloys with carbon, silica or chromium or chromium alloys, cadmium or cadmium alloys, zinc or zinc alloys with copper, aluminium, chromium, or iron or magnesium alloys. The preferred salts of palladium, iridium, ruthenium, rhodium or platinum are the chlorides.  Specifications 922,694 and 938,831 also are referred to.
Patent GB-1445532-A (GB)
Title: Antenna assembly in motor vehicles
IPC: H01Q1/32
Filed: 1974-09-09
Abstract: 1445532 Aerials TOYOTA JIDOSHA KOGYO KK 9 Sept 1974 [24 Oct 1973] 39343/74 Heading H4A A motor vehicle has an engine, front and rear window glasses, an A.M. receiving means and an F.M. receiving means, respective aerials for said receiving means, aerial conductors for the F.M. receiving means being embedded in, or printed on, the window glass which is most remote from the engine, the A.M. aerial being embedded in or printed on the other window glass or is formed as a pole antenna. As described, a front-engined motorcar has a rear window glass 4, Fig. 2, in which a centrallydisposed vertical FM aerial 8 is embedded, its length being about a quarter-wavelength (say 50 cm.) at an operating frequency in the FM waveband. The aerial 8 is connected through a line 9 to an F.M. socket 11 of a car radio 10. Printed defrosting conductors 6 are provided on the window on each side of the aerial 8, and are connectable via terminals 7 to the car battery. The A.M. aerial 12 is T-shaped, and is provided in the front window glass 3 of the motorcar. It is connected through a lead 9<SP>1</SP> to an A.M. socket 11<SP>1</SP> of the car radio 10. In another embodiment, the F.M. aerial and the defrosting conductors are disposed horizontally in the rear window glass (Fig. 3, not shown). Instead of a window-mounted aerial, a rod-type aerial may be used for A.M. reception.
Patent GB-372339-A (GB)
Title: Utilizing absorption refrigerating machines for heat insulating purposes
IPC: F25B15/06
Filed: 1930-12-31
Abstract: 372,339. Refrigerating. SIEMENSSCHUCKERTWERKE AKT. - GES., Siemensstadt, Berlin. Dec. 31, 1930, No. 39365. Convention date, Jan. 9. [Class 29.] Absorption machines and systems.-The spaced absorption and evaporation surfaces of a continuously-acting absorption refrigerating machine are employed to separate and reduce the transmission of heat between two spaces at different temperatures. Further, an inert gas or gas mixture of higher molecular weight than the refrigerant vapour or baffles may be provided in the space between the absorption and the evaporation surfaces to prevent the formation of heat - transferring convection currents. The cold-storage space 31 is enclosed by spaced walls 34, 35 forming the evaporation and the absorption surfaces of an absorption refrigerating machine comprising an electricallyheated generator 48 disposed in a brickwork pit and connected to a vapour separator 50, the vapour from which passes to an air-cooled condenser 52 connected to a distributing trough 59, while the weak absorption liquor entrained by the vapour passing to the separator flows through a pipe 53 forming a heatexchanger with the strong liquor pipe 46 from the space between the walls 34, 35 to the generator and connected to a distributing trough 56. The production of convection currents in the space between the walls may be avoided by horizontal baffles or by using a mixture of inert gas, e.g. nitrogen and argon, therein. The quantity and proportion of the inert gas are adjusted until a vane mounted in the space between the walls and observable through an inspection glass in one of the walls ceases to rotate. A refrigerant such as eythyl chloride and an absorbent such as tetrachloroethane may be employed so as to maintain a pressure approximating to that of the atmosphere in the space between the walls. Further, ethylamine and acetaldehyde may be used as refrigerants. Instead of a condensing refrigerating machine, one in which the refrigerant is evolved from rich solution may be employed. By supplying the refrigerant and the absorption solution to the troughs 56, 59 respectively the refrigerating machine may be used to prevent the transmission of heat from a heated space 31.
Patent GB-855615-A (GB)
Title: Improvements in or relating to electric flue-gas testers
IPC: G01N27/16
Filed: 1958-12-08
Abstract: 855,615. Flue gas testers. LANDIS & GYR A.G. Dec. 8, 1958 [Dec. 10, 1957], No. 39506/58. Class 40 (1).  A flue gas, or CO 2  tester, of the type in which the resistivity of a heated wire exposed to the flue gases is compared with that of a similar heated wire exposed to air, is adapted for use in a corrosive atmosphere by mounting the wires in compartments in a synthetic resin block. The block is preferably moulded from ethoxylene with quartz powder filler in two portions, the lower portion containing two flow chambers and the upper portion two measuring chambers. Fig. 1 shows a longitudinal section through a flow chamber 12 and measuring chamber 16 separated by an acid proof and temperatureresistant grid 17, the gases entering and leaving the chamber by holes 13 and 14 and diffusing to the measuring chamber through grid 17. Fig. 3 is a view from the underside of the upper block showing the two measuring chambers in which a platinum wire 22 is welded at each end to platinum tipped terminals 20 moulded into the block, the loop of wire being tensioned by a platinum-iridium spring 24, the spacing between the wires being maintained by glass block 27 moulded into the casing. A boss 28 is cast on to the roof of the chamber in order that, during assembly, the same length of wire may always be used by attaching one end of the wire to one terminal, passing the wire round boss 28, and then welding the other end to the second terminal, the loop then being removed from boss 28 and suspended from the tension spring 24. Specification 818,761 is referred to.