baber/WOPTO huggingface dataset:
Patent GB-541928-A (GB)
Title: Improvements relating to recording or registering mechanism for weighing apparatus
IPC: G01G23/18
Filed: 1939-06-23
Abstract: 541,928. Weighing-apparatus. BERKEL AUTO SCALE CO., Ltd. (Maatschappij van Berkel's Patent N.V.). June 23, 1939. No. 18323. [Class 143] Printed records, apparatus for giving; indicating-mechanism. In a weighting apparatus wherein printing or indicating mechanism is set by feelers investigating stepped or notched measuring discs rotated to an equal extent in accordance with the load, the investigating movement of the lower-denomination feeler imparts a lateral movement to the higher-denomination feeler (or feelers) to ensure its accurate engagement with the correct step of its measuring disc. As shown, the disc 1 of lowest denomination has a toothed and subdivided edge investigated by a feeler 4 having an inclined or stepped extremity 4a. The discs 2, 3 of higher denominations are investigated by feelers 5, 6, passing through a guide 7. The guide 7 is coupled to the feeler 4 by a pin 8 and inclined slot 9 so that on an investigating movement of the feeler 4, a lateral movement proportionate to the depth of entry of the feeler 4 is imparted to the guide 7 thereby displacing the feelers 5, 6 laterally in a sense tending to ensure engagement of the feelers with the correct steps of the wheels 2, 3. The feelers 5, 6 are reciprocated by parts 10, 11 connected by pinions 12 to the recording or indicating mechanism.
Patent GB-1300715-A (GB)
Title: Working head of a rotary swaging machine
Inventor: KOOST OLIVER AUGUSTOVICH
IPC: B21J7/16
Filed: 1971-06-01
Abstract: 1300715 Rotary swaging machines TALLINSKY ELEKTROTEKHNICHESKY ZAVOD IMENI MI KALININA GLAVPOCHTAMT TALLIN 1 June 1971 18329/71 Heading B3H A working head of a rotary swaging machine comprises a set of strikers 2 slidable radially in a rotor 1a of an arbor 1 and a set of taper rollers 4 freely rotatable on axles 7 mounted in a casing 3 coaxial with the rotor. The casing is reciprocated axially as the rotor is rotated by a kinematic drive linkage. The linkage comprises a gear 8 mounted on the arbor and driving a freely rotatable gear 11 on the casing through gears 9, 10. The gears 8, 11 have opposed cams 12, 13 urged together by a spring 14 so that relative rotation of the gears 8, 11 causes the casing to reciprocate. The casing is prevented from rotating in its housing 5 by keys (6), Fig. 2 (not shown). The arbor is driven from an electric motor by belting engaged with a flywheel 17. The strikers 2 have dampers (16) to reduce the noise.
Patent GB-782035-A (GB)
Title: Improvements in semiconductor devices and methods of fabricating same
IPC: H01L21/24
Filed: 1955-06-24
Abstract: 782,035. Coating with metals. GENERAL ELECTRIC CO. June 24, 1955 [June 29, 1954], No 18356/55. Class 82(2) [Also in Group XXXVI] A PN junction is produced by pressing activator material against the surface of a semiconductor wafer of one conductivity type so that the material adheres to the wafer, and heating to diffuse the activator into the semiconductor to form a PN junction. Fig. 1 shows a wafer 11 of germanium or silicon. Ribbons 13 and 15 which consists of donor or acceptor (e.g. indium or a lead acceptor containing alloy) material according to whether the wafer is P or N type respectively, are placed parallel to the surface of the wafer. Punches 17 and 19 in co-operation with nylon bushings 42 and 44 are arranged to punch out a section of the ribbon and press it so that it adheres to the surface of the wafer. The wafer is then heated to diffuse the impurity into the semiconductor and form a PNP (or NPN) device which may be used as a transistor. The procedure is said to result in a more uniform depth of penetration of the. impurity into the semiconductor. Specification 728,129 [Group XXXVI] is referred to.
Patent GB-421649-A (GB)
Title: Improvements in or relating to the manufacture of waterproof and oilproof material
IPC: D06M13/224
Filed: 1933-06-28
Abstract: Paper, leather, sheet cellulose, cotton, and other materials are waterproofed and oilproofed by coating or impregnating them with a derivative of a saturated oxygenated fatty acid, the derivative having a melting point preferably not below 50 DEG  C. Driers, drying oils and resins may be incorporated in the coating material which is applied in the molten state.  The following examples are given.  (1) Castor oil is hydrogenated by agitating it with hydrogen and reduced nickel as catalyst under high pressure and temperature.  The filtered oil melts at 84 DEG  C. and renders paper waterproof and oilproof. (2) Oxygen is blown into chinawood oil and the blown oil is hydrogenated to form a wax-like substance melting at 65 DEG  C.  (3) A grease-proof paper for wrapping meat is made by impregnating fabric with a composition prepared by heating hydrogenated castor oil with glycerol.  Other substances that can be used are waxy esters of hydroxystearic acid such as stearyl alcohol or the reduction products of hydrogenated castor oil or its esters and ethers.  The esterification products of hydrogenated oxygenated fatty acids with polyhydric alcohols such as glycol, diethylene glycol, sorbitol, pentaerythritol can also be used.  Instead of hydrogenated castor oil or blown chinawood oil other hardened oxygenated oils may be used such as hydrogenated blown linseed oil, menhaden oil or sunflower seed oil.  Brittleness in the products may be avoided by the addition of softeners such as soap, gums, resins and waxes.  Drying oils such as linseed or chinawood oil and semi-drying oils like castor oil may be added, also resins, dammar, vinyl resins, acetone-formaldehyde, urea-formaldehyde and chlorinated diphenyl resins.  Containers of wood, hemp, flax, silk &c. may be impregnated with the waterproofing materials or the elementary fibres may be treated before being made up into sheet form.  The coated articles may be air dried or heated or drying accelerators may be added to the waterproofing material. Containers and wrappers may be used for holding lubricating oils, paints, latex, milk, butter, fish, sardines in oil, and other food products.
Patent GB-595001-A (GB)
Title: Improvements in or relating to the catalytic conversion of hydrocarbon oils
IPC: C10G11/18
Filed: 1944-09-26
Abstract: <PICT:0595001/III/1> Catalyst which has become contaminated in the conversion of hydrocarbon oils is withdrawn from the convertor, subjected to two stripping treatments, regenerated and then returned to the convertor.  The first stripping is carried out with a large volume of steam and removes hydrocarbons absorbed on or associated with the catalyst.  In the second stripping a small volume of a gas which is not deleterious in the regeneration zone is employed; this ensures that harmful quantities of steam are not introduced into the regeneration zone.  The diagram shows a cracking plant. Gas oil or reduced crude, preheated if necessary, is introduced into the system through line 1, and mixed with hot finely-divided regenerated activated clay or synthetic silica/alumina gel from column 2 so as to form a suspension of the catalyst in oil vapour. The suspension is passed through distributing cone 6 into convertor 5 wherein the vapour velocity is controlled to allow of the formation of two fluid layers, the lower layer containing the bulk of the catalyst.  The products of the cracking pass through p  cyclone 8 and are then fractionated in tower 11.  Catalyst is continuously withdrawn from the body of the convertor 5 through the annular space surrounding the distributing cone 6 where it is stripped with steam introduced through line 22.  The hydrocarbon-free catalyst then passes through zone 19 where it is stripped with a small volume of light hydrocarbon gas or air which is introduced through lines 23 and 24.  The stripped catalyst passes down standpipe 18 and is then carried through line 26 by a stream of regenerating gas, introduced through line 21, into the base of regenerator 27 wherein the velocity of gas is controlled so that two fluid layers are maintained.  Spent gas is withdrawn from the regenerator through cyclone 29, cooled to a temperature within the range 300 DEG -600 DEG F. in cooler 33, freed from the last traces of catalyst in electrical precipitator 34, and vented to the atmosphere through stack 35.  Regenerated catalyst is withdrawn from the body of the regenerator through column 2.  The hydrogenation, dehydrogenation, polymerization, isomerization, alkylation and reforming of hydrocarbons are also referred to.
Patent GB-763829-A (GB)
Title: Improvements in or relating to line identification in telecommunication systems
Inventor: BRAY FREDERICK HARRY
IPC: H04M15/08
Filed: 1953-07-03
Abstract: 763,829. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. June 25, 1954 [July 3, 1953], No. 18491/53. Class 40 (4). Line identification means comprises a plurality of decoupling devices per line, permanent connections between the lines and their respective sets of decoupling devices and between the decoupling devices and means for registering the identity of the line, means for applying an identifying potential to any line, so as to operate the registering means, complete operation of the registering means removing the identifying potential from the line. Local calls are metered by 50 v. marking, Fig. 2, in known manner. For long distance calls the identity of the calling line is recorded automatically by the junction circuit, Fig. 5, applying 10 v. to the P wire. Precedence is given in any group of 1000 lines to metering signals. Seizure of a junction circuit energizes JA which operates guard relay JB to earth the P wire and fire gas tube JP, so requesting line identification. A junction-hunting circuit, Fig. 6, is arranged as a cyclic counter stepped by pulses applied to terminal DP. Firing of JP raises the potential of its cathode so that when the related tube in the junction-hunting circuit fires JQ fires to operate ID and common relay T, so halting the junction hunting circuit. JQ also quenches JP. ID applies + 10 v. to the P wire, said voltage being transferred over the rectifier circuits of Fig. 3 to fire the appropriate thousands, hundreds, tens and units gas tubes VM, VC, VD, VU, Fig. 4, representative of the calling line's designation. This circuit also energizes relays RM, RC, RD, RU to energize start terminal ST, so causing the recorder to punch the number of the calling line. The recorder then energizes relay R to restore the circuit of Fig. 4. Meanwhile, relays RM, RC, RD, RU restore T, JQ, ID so that the junctionhunting circuit resumes its cyclic operation and the circuits of Figs. 5 and 6 are restored to normal. If two or more gas tubes fire in any one series VM, VC, VD, VU, a fault exists and the corresponding marginal relay FM, FC, FD, FU energizes to prevent operation of the recorder circuit and maintain T, JQ, ID. R is also operated to restore the gas tube circuit so that a further attempt is made to identify the calling number. The presence of a metering pulse, +50 v. at contact j, Fig. 2, operates the BG relay in the thousands group to prevent operation of the line identifying circuit for the duration of the metering pulse.
Patent GB-202805-A (GB)
Title: Improvements in fuels for internal combustion engines
IPC: C10L1/06
Filed: 1922-07-06
Abstract: Motor spirit consists of a mixture of one or more hydronaphthalenes with one or more aliphatic hydrocarbons part of which boils below 100 DEG  C.  Mixtures of 50 lbs. of tetrahydronaphthalene or of decahydronaphthalene with 50 lbs. of light petrol, or with 40 lbs. of heavy petrol and 10 lbs. of gasoline, are specified.  Other fuels such as 50-100 lbs. of benzol may be added.
Patent GB-1511681-A (GB)
Title: Hydraulic ram mechanism
IPC: A01D85/00
Filed: 1975-05-23
Abstract: 1511681 Hydraulic reciprocating motors BRITISH LELY Ltd 23 May 1975 [3 May 1975] 18611/75 Heading F1A An hydraulic ram mechanism comprises a doubleacting ram 1, a reversing valve 5 for directing the output of a pump 7 alternately to lines 3, 4 connected, respectively, to the lower and upper ram chambers, and a pressure relief valve 14 arranged to open when the pump delivery pressure rises at the end of the ram's downward stroke and thereby direct the output of the pump 7 through lines 13, 16 to a piston and cylinder actuator 17, the operation of the latter causing changeover of the valve 5. Reciprocation is initiated by withdrawing a catch 18 so that a spring 22 moves the valve 5 from its neutral position to its downward position. The resulting downward stroke of the ram 1 allows a spring 23 to changeover a valve 11 and thereby disconnect the pump delivery lines 6, 13, 15 from a tank 9. After subsequent changeover of the valve 5 as previously described, the ram 1 performs an upward stroke until a piston-rod 1 A thereof returns the valve 11 and thus connects the lines 15, 16 downstream of the relief valve 14 to the tank 9. This de-actuates the actuator 17 whereby the valve 5 changes over and the cycle is repeated. Reengagement of the catch 18 causes the ram 1 to stop in its upper position. A manually operable cam 20 is arranged to co-operate with the valve 11 to enable the ram 1 to be stopped elsewhere in its cycle.
Patent GB-637390-A (GB)
Title: Improvements in and relating to guides for rolling members in microscopes
IPC: G02B21/24
Filed: 1947-07-14
Abstract: 637,390. Microscopes. REICHERT, C., [trading as OPTISCHE WERKE C. REICHERT]. July 14, 1947, No. 18629. Convention date, Jan. 21, 1946. [Class 97 (i)] [Also in Group XXXIV] In a microscope in which the tube is mounted on a guide movable on a fixed guide by means of interposed rolling members, e.g. balls, the pressure of the movable guide on the rollers is maintained by a pressure member engaging an additional roller connected with the movable guide and adjustable in a direction inclined to the direction of movement of the guide. As shown, the microscope tube b is carried on a guide c movably engaging rollers h which also engage a fixed guide on the body a; the guide c has an extension i having a bearing surface k against which a roller l carried by the housing is pressed by the surface p of a spring-urged member o whereby the guides and the rollers are held together. The rollers h are held in a cage supported by a weak spring to allow movement and engage pyramidal grooves in the guides, and the roller l is similarly supported in a cage m. The slide c has a follower v engaging the cam u of a fine adjustment mechanism. In a modification, the roller l is pivoted to the extension i, a spring being provided to hold the cam u and follower v in contact. The member o instead of being spring-pressed against the roller l may be adjusted by a screw.
Patent GB-1514019-A (GB)
Title: Catheter device
IPC: A61M39/00
Filed: 1976-05-06
Abstract: 1514019 Catheter assemblies GIST-BROCADES NV 21 April 1977 [6 May 1976 20 Aug 1976] 18638/76 and 34831/76 Heading A5R A catheter assembly comprises a tubular body I having a forward end 2 for introduction into a blood vessel, a side tube 8 projecting from the body and communicating with the interior thereof, a plug 9 of resilient material, such as porous expanded PTFE, disposed within the side tube and having a passage 10 through which a catheter 11 can be passed into the body 1 for projection from the forward end thereof with clearance being left between the walls of the body and the catheter, and a cap 12 for compressing the resilient material in the side tube to reduce the cross-section of the passage 10, thereby forming a seal around the catheter. The cap 12 may be removable by means of a bayonet-type connection or may be fixed onto the end of the side tube, Fig. 11 (not shown). In a modification, Fig. 8 (not shown) the plug 9 is omitted and the cap has an inner tube (43) of resilient material through which the catheter passes, said resilient tube being urged against the catheter by the pressure of liquid in the side tube.
Patent GB-926853-A (GB)
Title: Process for the manufacture of colourless or only slightly coloured addition products of alkylene oxides
IPC: C08G65/26
Filed: 1959-06-01
Abstract: In the reaction of alkylene oxides with organic compounds containing a reactive hydrogen, e.g. an acid, amine, alcohol or phenol, up to 2% of an oxidation inhibitor or reducing agent is present in order to prevent or reduce undesired colouration.  The reducing agent is colourless or has only a slight colour, and in the form of the oxidation product thereof, or in the form of an alkylene oxide addition product thereof has no or only a slight colour and does not form an insoluble precipitation.  Specified are hydrazine hydrate, hydroxylamine, phosphorous and hypophosphoric acids, the salts of the compounds, the esters of the acids, or a mixture of two or more of these compounds, and hydroxylamine chlorohydrate, thiourea and sodium hyposulphite. Examples describe the reaction of (1) ethylene oxide (30 mols.) with stearic acid in the presence of hydrazine hydrate and hypophosphoric acid; (5) ethylene oxide (10 mols.) with stearylamine in the presence of hydrazine hydrate; (7) and (8) ethylene oxide (20 mols.) with oleylamine and coconut oil amine respectively in the presence of hydrazine hydrate; and also the preparation of polyethylene, polypropylene and polybutylene glycols.ALSO:In the reaction of alkylene oxides with organic compounds containing a reactive hydrogen e.g. an acid, amine, alcohol or phenol, up to 2% of an oxidation inhibitor or reducing agent is present in order to prevent or reduce undesired colouration.  The reducing agent is colourless or has only a slight colour, and in the form of the oxidation product thereof, or in the form of an alkylene oxide addition product thereof, has no or only a slight colour and does not form an insoluble precipitate, and hydrazine hydrate, hydroxylamine, phosphorous and hypophosphoric acids, the salts of the compounds, the esters of the acids, or a mixture of two or more of these compounds, and hydroxylamine chlorohydrate thiourea, and sodium hyposulphite are specified.  Examples describe the reaction of ethylene oxide with (1) stearic acid in the presence of hydrazine hydrate and/or hypophosphoric acid (2),(3) and (4) triethanolamine in the presence of hydroxylamine chlorohydrate, hydrazine hydrate, thiourea and sodium hyposulphite (5) and (6) stearylamine in the presence of hydrazine hydrate (7) oleylamine and hydrazine hydrate (8) coconut oil amine and hydrazine hydrate (10) diethylene glycol with hypophosphoric acid; a - and b -butylene oxides with 1.3 butylene glycol in the presence of hypophosphoric acid and hydrazine hydrate; ethylene oxide with (13) tributyl phenol with hypophosphoric acid and (14) oleic acid with hypophosphoric acid and (16) oleyl alcohol with sodium hypophosphite; and (15) propylene oxide with coconut oil fatty acids with sodium hypophosphite.
Patent GB-744502-A (GB)
Title: Improvements in or relating to flow boxes for paper making
IPC: D21F1/02
Filed: 1953-07-07
Abstract: 744,502. Flow-spreaders of paper-making machines. WALMSLEYS (BURY), Ltd., and LORD, H. July 6, 1954 [July 7, 1953], No. 18749/53. Class 96. A flow-spreader for a paper-making machine may be constituted as part of a flow-box, and comprises a vertical or sloping down-passage 12 connected, by a series of pipes 15 or openings, with an up-passage 14, the pipes &c. being so positioned, i.e. at varying depths, that the total length of the paths of flow from the centre of the inlet pipe 11 to any part of the slice outlet 16 is the same. The pipes &c. 15 are equi-spaced horizontally. Doors 20 are provided for cleaning.
Patent GB-141987-A (GB)
Title: Improvements in plastic compositions
IPC: C08L89/00
Filed: 1919-07-29
Abstract: 141,987. Deleglise, L. July 29, 1919. Plastic compositions containing fibres, plaster, &c.-A plastic composition which is a non-conductor of heat and electricity and is incombustible is formed by mixing fibres of paper, wood, rag, &c. plaster, and a solution of gelatine containing stannic oxide. The mixture is heated with a solution of formaldehyde or of sodium bichromate. Colours may be added. An example of proportions is 25 parts of fibre, 175 parts of plaster, 45 parts of gelatine, 10 parts of tin dioxide, and 110 parts of water mixed with 5 parts of formalin or sodium bichromate in 30 parts of water.
Patent GB-672169-A (GB)
Title: Improvements in or relating to electric wave amplifiers
Inventor: HARGREAVES THOMAS FREDERICK ST
IPC: H03G3/22
Filed: 1950-07-28
Abstract: 672,169. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd. July 28, 1950, No. 18892/50. Class 40 (vi). In an amplifier comprising a pair of similar valves having a high common cathode impedance, the grid of one valve being earthed and the grid of the other being driven by a preamplifier, the output is derived from the anode of one valve of the pair and a negative feed-back connection is provided between the cathode of a valve of the pre-amplifier and the anode circuit of one valve of the pair. As shown, three pre-amplifier stages 1, 2, 3 feed the grid of the first valve of the cathode coupled pair. The output is taken from the anode of the second valve of the pair and negative feed-back is applied from the anode of the first to the cathode of the first valve of the pre-amplifier. It is explained that the circuit has the advantage of freedom from even order distortion normally associated with push-pull circuits and provides an unbalanced feed-back connection. If an even number of pre-amplifier stages is used, capacitor 6 may be connected to the anode of valve 5 or the input may be applied to the grid of valve 5, the grid of valve 4 being earthed.
Patent GB-1300747-A (GB)
Title: Engine fuel control apparatus
Inventor: SOLTAU JOHN PETER
IPC: F02D1/00
Filed: 1969-04-14
Abstract: 1300747 Regulating I. C. engines JOSEPH LUCAS (INDUSTRIES) Ltd 31 March 1970 [14 April 1969] 18905/69 Heading F1B Control apparatus for a shuttle-type fuelinjection metering pump 77, Fig. 1 comprises a three-dimensional cam 39 whose angular and axial positions are respectively alterable in accordance with first and second engine operating conditions, e.g. throttle setting, inlet vacuum or speed, a first cam follower 52 co-acting with the three-dimensional cam and moving a twodimensional cam 55 which is engaged by a second cam follower 8 and movable thereto in response to a third engine operating condition, the position of the second cam follower being transmitted to a control stop 77a on the metering pump. In use the inlet manifold vacuum is communicated by connection 26 to act on the left hand side of diaphragm 12 (in Fig.1), ambient air pressure being communicated through connection 79 to act on the other side of the diaphragm. With increasing inlet manifold vacuum the diaphragm assembly moves against spring 27 and rotates the three-dimensional cam 39 via link 37, plate 33, sleeve 31 and setscrew 41 to give an anticlockwise rotation of cam follower 52. Lever 49 is connected to the engine throttle control so that when the engine is accelerated the threedimensional cam 39 is moved axially via shaft 48, arm 49 and a roller engaged between flanges 44, 45, Fig. 2 (not shown) to give a clockwise rotation of cam follower 52 (as seen in Fig.1). Lever 64, Fig. 2 (not shown) is connected to the engine choke control so that movement of the latter to its starting position causes cam (62), Fig.5 (not shown), to rotate lever 60 against spring 61 and rotate bracket 66 clockwise, in Fig.1. Downward movement of member 75 permits increased fuel delivery. The angular position of the first cam follower 62 is transmitted to a cam 55 via bracket 54 and the position of the cam follower 8 depends on the position of the choke. The positions of roller 74 and member 75 depend on the positions of the throttle and choke controls and the pressure in the engine inlet manifold. In a modification the diaphragm assembly 9 responds to a pressure signal derived from engine speed.