baber/WOPTO huggingface dataset:
Patent GB-1115776-A (GB)
Title: Liquid spring and a combined drawgear and buffer gear incorporating such a spring
Inventor: BITTEL KARL
IPC: F16F5/00
Filed: 1965-09-21
Abstract: 1,115,776. Combined buffer and draw gear. ZENTRALE ENTWICKLUNG UND KONSTRUKTION ZEK HYDRAULIK VEB. 21 Sept., 1965, No. 40219/65. Heading B7T. [Also in Division F2] If the housing 1<SP>1</SP> of a liquid spring in railway vehicle combined buff and draw gear is held stationary by limit stops and a buffing load is applied to the right-hand end of the gear shown, then a ram 5<SP>1</SP> is first moved by a surrounding yoke (not shown) to open valve 8<SP>1</SP> against pressure on the ram 5<SP>1</SP> or by a spring (not shown) providing communication between liquid chambers 16<SP>1</SP> and 15<SP>1</SP> via bores 21 and 22. When the load moves further then the plate 4 and the plunger 3<SP>1</SP> with its head 9<SP>1</SP> are moved into the chamber 16<SP>1</SP> to increase the resistance. The valve 8<SP>1</SP> may be a pressure reducing valve to alter the characteristics of the gear. If the housing 1<SP>1</SP> moves relatively to the plate 4 as in draw loading then the valve 8<SP>1</SP> is held closed by the pressure in chamber 16<SP>1</SP>, the ram 5<SP>1</SP> not being abutted and the chambers 15<SP>1</SP> and 16<SP>1</SP> remain separated from one another. Damping during draw loading can only be obtained it an additional damping plunger (not shown) is used. In the embodiment of Figs. 1-3 (not shown) the ram (5) does not extend to the surface of the plate 4 and is provided with a smaller area for the pressure to act upon than the valve (8) so that when the whole arrangement is compressed by the yoke (2) the valve (8) remains closed initially until the ram (5) reaches a position where it is flush with the surface of the plate 4. Further compression then moves the ram and opens the valve so that the chambers (15) and (16) are connected. Initial pressure is produced within the chamber (15) by adjustment of the screw (11).
Patent GB-958251-A (GB)
Title: Improvements in or relating to the preparation of steroid compounds
Inventor: LONG ALAN GIBSON
IPC: C07J75/00
Filed: 1959-11-26
Abstract: The invention comprises 21-acyloxy-2, 4-dibromo - 17a  - hydroxy - 16b  - methyl - 5a  -pregn - 9(11) - ene - 3, 20 - diones and a process for the preparation of 21-acyloxy-17a -hydroxy-16b -methyl - pregna - 1, 4, 9(11) - triene - 3, 20-diones by heating a 2, 4-dibromo compound in the presence of lithium, calcium, barium or strontium carbonate and an inert Lewis base containing a tertiary nitrogen atom and having a high dielectric constant (>15), said base being liquid at the temperature of dehydrobromination. The 2, 4-dibromo compounds are themselves prepared by dibromination of a 21-acyloxy-17a -hydroxy-16 b -methyl-5a -pregn-9(11)-ene-3, 20-dione with molecular bromine in an inert solvent. Specified Lewis bases include N,N-dimethylformamide, N, N-diethylacetamide, N,N-dimethyl valeramide, N-formyl piperidine, N-formylmorpholine, N, N, N1, N1-tetramethyl adipamide, N, N-dimethyl cyanamide, and N,N,N1,N1-tetramethylurea, and the dehydrobromination process is preferably carried out in the presence of an alkali metal halide or alkaline earth halide, particularly lithium, sodium or calcium bromide.  The mixture of 2,4-dibromo isomers that is obtained may be resolved by chromatography to give the 2a , 4b -dibromo isomer.  The invention is illustrated by thirteen detailed examples. Specification 956,272 is referred to.
Patent GB-1045196-A (GB)
Title: Filter device
IPC: B01D29/11
Filed: 1964-10-02
Abstract: 1,045,196. Mounting filter candles. W. MAYER, W. KOCH, K U. MEYER RUDOLPHI and H. H. MESSNER (trading as SCHUMACHERSCHE FABRIK). Oct. 2, 1964 [June 12, 1964], No. 40309/64. Heading B1D A filter candle 20 is held in position in a partition 12 of a filter casing 10 by means of a pressure member 48 forcing the portion of a flanged supporting member which is adhesively attached to the upper end of the filter candle and which lies within the aperture and which also may be expanded elastically, against the aperture wall. The portion within the aperture has a pair of flanges 36 within a packing ring in the groove therebetween. The edge 44 of an inner sloping shoulder 42 lies in the vicinity of the groove and the cylindrical portion 50 of the pressure member bears against, and effects deformation (see Fig. 1) of this sloping shoulder. A raised rim 56 of the pressure member prevents withdrawal after initial insertion which is possible due to slits 54 in the lower part. When the rims 46 and 56 are engaging, the portion 50 is raised away from and relieves the stress on the shoulder 42, so allowing removal of the candle and its associated members from the aperture. Rim 62 determines the expansion position and rim 60 is a gripping means. The supporting member is of plastics or rubber and the pressure member is of metal or plastics.
Patent GB-1368187-A (GB)
Title: Control of vibration in helicopters
IPC: B64C27/51
Filed: 1972-08-31
Abstract: 1368187 Helicopter TEXTRON Inc 31 Aug 1972 [18 Oct 1971 4 Feb 1972] 40422/72 Heading B7W  A helicopter comprises a main body structure 10 subject to vibrations induced by main rotor 14, and a load carrying structure, such as a cabin 50, secured to the structure 10 only at nodal points 40, 41 thereon so that it is isolated from vibrations. The nodes are chosen for a frequency which is the product of the number of rotor blades and an optimum rotor speed such as 300 r.p.m. The main body structure includes most of the fixed weight of the helicopter, such as engines 11, transmission 12, rotor pylon 13 and controls therefor, the cabin 50 housing cargo and passengers. The cabin may be attached to a beam 23 at nodal points 40, 41, Fig. 1, or to nodal points on weighted cantilevered beams (106- 109) mounted to a frame member (104); or a frame member 304, Fig. 8, may have cantilever beams 311-314 to which, in the region of points which are nodes for a dominant rotor-induced frequency, are attached further cantilever beams to which, at points 321-324, which are nodes for a harmonic of the said frequency, loadcarrying structure may be mounted. The connections between the main body structure and the load-carrying structure may be rigid, ball- and-socket or elastomeric.
Patent GB-1186659-A (GB)
Title: Improved Lubricating Composition
IPC: C10M161/00
Filed: 1968-08-23
Abstract: 1,186,659. Lubricant. LUBRIZOL CORP. 23 Aug., 1968 [20 Sept., 1967], No. 40489/68. Heading C5F. A lubricant composition comprises a major amount of a lubricating oil, a minor amount of at least one dispersant selected from the metal salts, amine salts, amides, imides, amidines and esters of substituted succinic acids having a substituent containing at least 50 aliphatic carbon atoms, and 0À01-5% by wt. of a demulsifier for water-in-oil emulsions. The dispersant is preferably a reaction product of a polyisobutylene-substituted succinic acid anhydride and a polyethylene polyamine and is present in amount 0À01-20% by wt. The base oil may be a mineral oil or a synthetic oil, e.g. dibutyl adipate, di-(2-ethylhexyl) sebacate and dilauryl azelate. The preferred demulsifiers are polyoxyalkylene polyols in particular block copolymers comprising a hydrophobic portion of groups and at least one hydrophilic portion of -CH 2 CH 2 O- groups. Other demulsifiers mentioned are alkylphenoxypoly- (ethyleneoxy) ethyl mono- and diesters of phosphoric acid, polyoxyethylated amines, amides and quaternary salts, and dodecylphenyl or nanophenyl polyethylene glycol ethers. Many optional additives are listed and those used in the examples are zinc dioctylphosphorodithioate, zinc di-n-hexyl-phosphorodithioate, a reaction product of Ba(OH) 2 , polypropylene, P 2 S 5  and sulphur; an overbased barium mohogony acid sulphonate, a copolymer of decylmethacrylate and diethylaminoethylacrylate, a chlorinated paraffin wax, dibutyltetrasulphide, sulphurized dipentene and oleylamide.
Patent GB-1245338-A (GB)
Title: A tap unit having concealed connecting means
IPC: E03C1/04
Filed: 1969-08-14
Abstract: 1,245,338. Pipe joints. FRIEDRICH GROHE ARMATURENFABRIK. 14 Aug., 1969 [14 Aug., 1968], No. 40764/69. Heading F2G. A tap unit comprises a pipe portion 8 slidably connected to a connecting pipe 11 and a casing 1 to conceal the connection therebetween and formed integrally with the portion 8. A spout (6) (Fig. 3, not shown) vents a mixture of cold and hot water supplies through two similar inlets 8<SP>1</SP>, the supply being regulated by control valves 4 and 5 respectively. The connecting pipe 11 is screwed into the supply pipe by means of the hexagonal portion 12. Sealing rings 9 are provided on pipe 11 at the connecting portion thereof with pipe portion 8. The pipe 11 includes a portion 13 of tapered cross-section so that with the parts positioned for assembly, the casing 1 is caused to be drawn to abut the wall 9<SP>1</SP> or the like by tightening the securing means 15.
Patent GB-944109-A (GB)
Title: Improvements in or relating to methods of forming junctions in semiconductors
Inventor: LEWIS DAVID THOMAS
IPC: H01L21/24
Filed: 1960-11-28
Abstract: 944,109. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. Nov. 27, 1961 [Nov. 28, 1960], No. 40816/60. Heading H1K. In a method of producing a PN junction in a semi-conductor device by an alloying process a pellet of the alloying material is placed in contact with the semi-conductor body and heated rapidly for a short time so that the amount of alloying is considerably less than the maximum achievable, a subsequent alloying process is carried out under thermal equilibrium conditions such that the amount of alloying is a maximum consistent with the temperature and the amount of alloying material present. The Figure shows the preferred embodiment in which a disc of N-type silicon 1 is placed in a graphite jig 2 between pellets 3 and 4 of alloying material, e.g. of eutectic alloy of silicon and aluminium, arid disc electrodes 5 and 6 of molybdenum which have their outermost faces nickel plated. The jig 2 is heated by an eddy current heating generator for a period of 6 seconds during which the outer surface of the jig is raised to 900‹ C. and the pellets 3 and 4 alloy with the wafer 1 to a depth of about 0.008 mm. and are bonded to the electrodes 5 and 6, when the assembly has cooled to 65‹ C. the semiconductor device is removed from the jig, etched and placed in a second jig similar to jig 2 but made of pyrophyllite and having provision for holding a ring of gold containing a small proportion of antimony in contact with the side of wafer 1 to which alloy bead 3 is attached to form the base electrode. The assembly is then heated in a reducing atmosphere to 850‹ C., the heating taking 15 minutes, and then allowed to cool over about 45 minutes, after which the device is etched, silver leads soldered to the electrodes, and sealed in an envelope.
Patent GB-923996-A (GB)
Title: Frying pan device
IPC: A47J37/10
Filed: 1961-11-15
Abstract: 923,996. Frying pans. J. J. MARAIS. Nov. 15, 1961 [Jan. 27, 1961], No. 40821/61. Class 66. One or two pairs of pan-like containers are hinged to a rod 3 with a handle 4, the containers of the or each pair being usable open or inverted one above the other.
Patent GB-1350463-A (GB)
Title: Inflation apparatus
IPC: F16K31/46
Filed: 1971-03-03
Abstract: 1350463 Valves SARGENT INDUSTRIES Inc 3 March 1971 40867/73 Divided out of 1350462 Heading F2V The disclosure is identical with that of the parent, but the claims are directed to the combination of a gas container and pressure regulator.
Patent GB-1299156-A (GB)
Title: Machine
IPC: B23Q1/66
Filed: 1970-08-26
Abstract: 1299156 Indexing ENGINEERING & AUTOMATION Ltd SA 26 Aug 1970 [2 March 1970] 40994/70 Heading B3B A machine includes rotary indexible machine table 1 has two index positions defined by rigid stops between which the table is indexable by an oscillatory drive which maintains torque transmission to the table in a given sense of rotation thereof until reversal. As shown, the table 1 is indexed by a couple Md applied through a shaft 9 which can be rotated in opposite directions by a pneumatically-operated rack-and-pinion mechanism controlled by a three-way, two-position valve. Rigid stops 5, 6 on the table housing 4 coact with a rigid finger 7 on the table to define the index positions. The couple Md is contained, until reversed, to maintain finger 7 in engagement with the respective stop 5 or 6. Workclamping devices (or tool-clamping devices) 2 are associated with the index positions. In a modification (Figs. 3 and 4, not shown), rotary work-holders can be located in bores (10) of the table. In a further modification (Fig. 5, not shown) the stops 5, 6 are on the table and finger 7 on the housing. The stops 5, 6 have screws 8 providing their stop surfaces; these allow adjustment.
Patent GB-1361833-A (GB)
Title: Coupled cavity slow wave circuit and tube using same
IPC: H01J23/24
Filed: 1971-09-03
Abstract: 1361833 Velocity-modulated tubes VARIAN ASSOCIATES 3 Sept 1971 [8 Sept 1970] 41144/71 Heading H1D In a coupled-cavity slow-wave structure, for a travelling-wave tube or a hybrid tube, in which the coupling slots are arranged in a plurality of N axially aligned arrays, with N greater than 2-, e.g. a cloverleaf structure-at least N of the cavity end walls have less than the full number of full-sized slots, and these end walls are so angularly disposed as to block off at least a portion of the line-of-sight path through each of the axial arrays, and thereby prevent undesired beamlets in the slot arrays interacting cumulatively with the fields in the slow-wave-structure. Preferably, each of these end walls lacks only one full-sized slot, the place of which is taken by a slot extending over only the radially outer half of the normal slot length, whereby the inner half, through which most of the beamlet passes, is blocked off. In a severed, forward-wave travelling-wave tube, the upstream end section, in which the field intensities are least, may be of normal construction. The slow-wave structure may be assembled by sliding the cavity members on to a set of aligning rods which pass through spaced holes adjacent the peripheries of the members (Fig. 3, not shown).
Patent GB-964688-A (GB)
Title: Improvements in the manufacture of orthopaedic foot supports
IPC: A43B7/28
Filed: 1962-10-31
Abstract: An orthopaedic foot support shaped to the foot of the wearer is fromed from a mixture of cork waste and a synthetic plastics material by injection moulding.  The mixture may comprise polyvinyl chloride and up to 80% cork waste, and a propellant, e.g. polystyrol, may be added to form a foam.  The mixture may be injected into a heated mould in which the plastics material gets so that the mixture solidifies, or molten mixture may be fed into unheated moulds under pressure.
Patent GB-1487215-A (GB)
Title: Method and apparatus for determining the potassium uranium and thorium contents of a geological formation
IPC: G01N33/24
Filed: 1974-09-23
Abstract: 1487215 Evaluating the geological formations of a borehole SCHLUMBERGER Ltd 23 Sept 1974 [1 Oct 1973] 41402/74 Heading G1A In an apparatus for evaluating the geological formations of a borehole, by investigating its natural radio-activity (gamma rays), to determine the Potassium Uranium and Thorium content of the formation, the number of gamma rays whose amplitudes fall within three contiguous energy "windows" (or ranges) containing the peaks 1À46, 1À76, 2À62 Mev. respectively Fig. I (not shown), are determined. The number of gamma rays whose amplitudes fall within at least one other energy window in the remaining low energy part of the spectrum is also determined. A probe comprises a photo-multiplier 10 and its associated scintillator 11 whose pulse output is amplified at 12 and fed to a pulse sorting logic circuit 13. The sorting logic circuit comprises six voltage comparators 14A-14F, five "NOT" circuits 15B-15F and five "AND" gates 16A-16E connected as shown. They provide an "emitter" 17 with five sets of pulses whose counting rates, are directly proportional to the number of gamma rays occuring in the various energy windows (there are two "reference" energy windows in the preferred embodiment). The pulses picked up by the emitter 17 are sent via a cable 18 to a receiving stage 19 on the surface. The receiving stage contains five counters 20A- 20E which are each respectively connected to a D/A converter 21 followed by a demultiplexer 22. The values stored in the counters 20A-20E are transferred every second under the control of a timing logic circuit 23 to a set of integrators 24A-24E via the converter and multi-plexer, as shown. The integration is performed over four seconds and the resulting integrated voltage is then introduced into analogue computer 25, that processes the integrated values according to either of two sets of equations disclosed in the description. The calculated results of the three concentrations is then fed to a recording system 20.
Patent GB-932210-A (GB)
Title: Improvements in and relating to printed circuits
IPC: H02K3/26
Filed: 1960-12-02
Abstract: 932,210. Printed circuits. DIELEKTRA A.G. Dec. 2, 1960 [Dec. 12, 1959], No. 41486/60. Class 37. The individual conductors of a printed circuit board are formed from metal foil clad to both sides of an insulating material and are separated from each other on the surface by etched grooves and at the edges of the board by notches; the metal foil on each side of the board being conductively connected by metallizing the cut edges of the insulating material between the two sides. A panel is punched from a sheet of insulating material 1 clad on both sides with metal foil and in the same process holes and apertures are punched in the panel where desired ; the insulating material being of any suitable material examples being given in the Specification. The cut edges of the panel are sensitized with a graphite or silver-powder layer 3, and then stacked in a copper electroplating bath where the cut edges are plated with a layer 4 of copper. The panels are then printed in negative form by a photographic method with the desired wiring pattern so that only the eventual separations between the conductors are covered with a plating resist; and are again immersed in a plating bath so that the parts not covered with the resist are electroplated with a different metal 7, Fig. 2, to that of the foils and the metallized cut edges; the different metal being preferably silver or nickel. After washing and drying the panels the resist is removed and the panels etched to form separations 6 in any known way. The board is completed by punching out notches 5 in the edges of the panel. If a different metal is used for metallizing the cut faces to that of the metal foil the panel may be photo-printed in positive form and also after metallizing the cut faces the notches for separation of the conductors on the edges may be cut out and only then is the printing and etching or printing in negative form, plating with the other metal and etching carried out. Figs. 5 and 6 (not shown) show a circular printed circuit with radially extending conductors. If a similar pattern is used on both sides of the boards the conductors may be closed in themselves and not interconnected. It is also possible not to have annularly closed conductors but to have a closed circuit which transcribes the panel as many times as there are radial conductors on the surface. Specification 758,688 is referred to.
Patent GB-973799-A (GB)
Title: Shim washer
Inventor: ADAMS JAMES EDWIN
IPC: F16B39/24
Filed: 1963-10-22
Abstract: 973,799. Washers. BISHOP & BABCOCK CORPORATION. Oct. 22, 1963, No. 41677/63. Heading F2H. [Also in Division B3] Washers, particularly to be superimposed and subjected to high pressure, have indentations 12, Figs. 1, 2, each with severed inner edge and sides to form a broad tongue with the inner edge forming a free end e, Fig. 6, overlapping the part from which it was severed. Figs. 5 and 6 show an intermediate and the final stage of pressing and forming the indentations.
Patent GB-1322555-A (GB)
Title: O-methyl-o-2,2,2-trihaloethyl o-2,2,-d balovinyl phosphates
IPC: A01N57/12
Filed: 1970-09-01
Abstract: 1322555 Pesticides containing phosphoric acid esters AGRIPAT SA 1 Sept 1970 [2 Sept 1969] 41756/70 Heading A5E [Also in Division C2] A pesticidal composition contains as active ingredient at least one phosphate of the formula: wherein X is F or C1 and Y is Cl or Br, and a carrier or diluent therefor. The composition may be in conventional solid or liquid form (including aerosols) and may include other insecticides, fungicides, bactericides, fungistatic and bacteriostatic substances, nematocides, plant fertilisers and trace elements. Other pesticides specified are phosphoric-, phosphonic-, thio- and dithiophosphoric acid esters and amides, halogenated hydrocarbons, e.g. 4, 4'-dichlorodiphenyl-trichloroethane, pyrethrins, halogenobenzilic acid esters, oxine carbamates, aryl carbamates and carbamates of heterocyclic compounds which are enolisable. Synergists such as dibutyl succinate, piperonyl butoxide, olive oil and peanut oil may also be present.
Patent GB-1019669-A (GB)
Title: Improvements in alternating-current electro magnetic hammers
IPC: B25D11/06
Filed: 1962-11-05
Abstract: 1,019,669. Electromagnetic hammers. P. A. MACCHIONI and L. MACCHIONI. Nov. 5, 1962 [Nov. 14, 1961], No. 41802/62. Heading B3H. [Also in Division B4] A solenoid-operated hammer using alternating current has its armature 9 secured to a striker 12 biased by a pair of springs 21, 23, and a resilient diaphragm 16 of synthetic material is provided between the hammer casing 20 and the striker for supporting and guiding the latter. The laminated armature 9 has an enlarged head 10 with a dovetail slot 11 for receiving the striker 12 which is surrounded by a sleeve 14 secured by a threaded collar 27 and providing an abutment 22 for the two compression springs 21, 23. Two resilient diaphragms 16, 25 are clamped to the striker and the casing 20, and a resilient buffer 28 cushions excessively long strokes of the striker. A collar or sleeve 14 co-operates with an annular member 19 to limit the instroke. The solenoid coil 1 is mounted on a laminated stator comprising two outer portions 5 and a central portion 6. Current is supplied to the coil through a switch 3 operated by a push button 4. Cooling holes 100, Fig. 3 (not shown), are provided in the hammer casing for a cooling air stream produced by movement of the diaphragms 16, 25. The striker actuates a tool U having a tapered end 30 fitting into a spool 29 of synthetic material. In other embodiments, Figs. 3, 5 (not shown), the outer diaphragm is omitted and the striker and the tool slides in a bush of synthetic resin or metal provided with lubrication holes communicating with a grease or oil-filled chamber in the casing.
Patent GB-1498786-A (GB)
Title: Process for preparing alkali metal dispersions
IPC: B01F27/91
Filed: 1976-10-08
Abstract: 1498786 Alkali metal dispersions JAPAN SYNTHETIC RUBBER CO Ltd 8 Oct 1976 [9 Oct 1975 7 Sept 1976] 41909/76 Heading ClA [Also in Division B1] An alkali metal dispersion is made by feeding molten metal, dispersing agent and inert liquid to a multipass emulsifier, and solidifying the metal on the resulting emulsion by (i) cooling the emulsion to at least 10 C. below the metal melting point while it flows non-turbulently through a tubular cooler at a linear velocity of 0À1 to 50 cm./sec., or by (2) passing the emulsion into sufficient agitated cooled inert liquid to cool the emulsion to at least 10 C. below the metal melting point. The liquid in (2) may be pre-formed dispersion or the dispersion medium in an externally cooled container. Alternatively, cooled liquid may be fed into a container continuously with the emulsion. The inert liquid may be a hydrocarbon, and the dispersant may be aluminium distearate or a higher fatty or sulphonic acid or ester. The particle size of the dispersed metal is usually 1-30 microns. Examples describe the preparation of(1) sodium dispersed in kerosene and (2) lithium dispersed in paraffin. A multipass emulsifier is also described.