baber/WOPTO huggingface dataset:
Patent GB-751085-A (GB)
Title: Improvements in or relating to a process of manufacturing two-slab structural elements
IPC: E04B5/36
Filed: 1954-10-11
Abstract: 751,085. Ceilings; walls. PRIGNITZ, H. Oct. 11, 1954 [Oct. 9, 1953], No. 29303/54. Class 20(4). A method of constructing a sound and thermally insulated ceiling comprises supporting on temporary shuttering, not shown, two superposed light weight slabs 1, 3 loosely interconnected by yieldable strip material e.g. wire loops 4, with or without the interposition of spacer blocks 5, 6 which when used are loosely placed in position or rigidly connected to one of the slabs 1 or 3 and are preferably made of a more compressible material than the latter, and pouring concrete 2 onto the upper face of the block 1 preferably having a reinforcement 8 placed thereon. The temporary shuttering is removed when the concrete 2 has set. Layers of rock wool, or paper, may be inserted between the slabs 1, 3 to act as sound dampers. The connecting means may be surrounded with, and be bonded to, vibration damping material which may be of tubular form pushed onto the connecting material with, or without, an air gap. Alternatively the connecting strips may be formed at intervals from vibration damping material. In one embodiment the connecting means is loosely disposed in a recess in the under slab 3, the recess having a covering. This method may also be used for constructing walls.
Patent GB-205354-A (GB)
Title: Improvements in or relating to diaphragms for dry gas meters
IPC: G01F3/22
Filed: 1922-10-28
Abstract: 205,354. Shaw, A. G., and Shaw, A. G. Oct. 28, 1922. Gas meters. - In a dry gas meter each side of the dividing partition B is provided with a central feed chamber A and throat piece C in communication with the valve chamber, the diaphragm pan E being attached to the chamber A and in communication therewith by means of a screw-threaded nipple and socket joint D, F. The chamber A also serves to collect gas liquor. Reference has been directcd by the Comptroller to Specifications 1400/86, 10770/01, and 2058/04.
Patent GB-991894-A (GB)
Title: Hypodermic injector
IPC: A61M5/20
Filed: 1961-08-15
Abstract: 991,894. Surgical injection appliances. R. P. SCHERER CORPORATION. Aug. 15, 1961 [Aug. 15, 1960], No. 29444/61. Heading A5R. A needleless hypodermic injector provides a two-stage injection, the first of which is at relatively high pressure and is achieved by a pre-loaded spring which, on release, drives the plunger forward in advance of the main propelling means. Medicament is received in a chamber 18 from a storage bottle 34 through an adjustable three-way valve 40. The plunger head 74 is attached, with slight lost movement Y, in the end of a plunger rod 72 which is connected to a piston 70 through a pre-compressed spring 78 and adjusting bolt 90. The piston is sealed by a looped diaphragm 69 and is arranged to be driven towards the left by compressed air received through a union 136, the air supply being automatically switched on when the valve 40 is turned 90 degrees clockwise from the position shown, to connect the medicament chamber 18 with the outlet nozzle 52. In use, the valve 40 is first set to the position shown, whereupon the air supply is cut off and a spring 94 returns the plunger assembly to the limit of its travel, at which point a latch 132 engages behind the cup-shaped spring housing 76 and is held by a trigger 126. Retraction of the plunger head 74 draws in medicament from the container 34 and when this operation is complete the valve 40 is rotated to its discharge position. As stated above, this automatically switches on the air supply which consequently advances the piston 70 through the distance X, so compressing the already stressed spring 78. The injection is made by using the trigger 126 to release the latch 132, whereupon, initially, the spring 78 drives the plunger rod 72 forward to strike the head 74 to give a first high pressure stage of medicament injection. Immediately thereafter the piston 70 is advanced steadily by the air pressure, driving the plunger head 74 to the limit of is travel, for the second stage of injection.
Patent GB-801216-A (GB)
Title: Improvements in or relating to road rollers
Inventor: LINKE JOSEF
IPC: E01C19/41
Filed: 1956-09-27
Abstract: 801,216. Road rollers. HAGELSTEIN, H., and HAGELSTEIN, E. [trading as HAGELSTEIN MASCHINENFABRIK, A.]. Sept. 27, 1956, No. 29575/56. Class 6(1). [Also in Group XXI] A vibrating roll 5 is fitted between the front and rear rolls 2, 4 of a road roller 1. As shown the roll is provided with a shaft 6 with unbalanced weights 7 the shaft being driven from a countershaft 13 by belt gearing 11. The shaft 13 is driven from the transmission shaft of the roller through bevel gearing 14 and a carden shaft 15. The roll 5 is mounted on arms 8 pivoted to the roller frame and the arms are acted upon by adjustable springs 17. The roll 5 is raised by a hydraulic jack 19. In a modification the roll 5 is replaced by a vibratory plate (see Group XXI). ).
Patent GB-830742-A (GB)
Title: Polymerisation process
Inventor: RAUM ALARIC LOUIS JEFFREY
IPC: C08F10/00
Filed: 1955-10-18
Abstract: Catalysts for the polymerization of ethylene (see Group IV (a)) are formed by mixing lithium borohydride with a titanium, zirconium or vanadium halide, e.g. a chloride such as the tri- or tetra-chloride, and preferred molar ratios are specified.  The catalyst formation is preferably effected in an inert medium such as pentane, hexane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, paraffins, benzene, xylene, dichlorobenzene, chlorinated naphthalene, petroleum ether or mixtures thereof. After polymerization the catalysts may be destroyed with ethanol, hydrochloric acid or ethanolic hydrochloric acid.  Specification 827,464 also is referred to.ALSO:Ethylene is polymerized with a catalyst formed by mixing lithium borohydride with a titanium, zirconium or vanadium halide, e.g. a chloride such as the tri- or tetrachloride, and preferred molar ratios of the catalyst components are specified.  The catalyst formation and the polymerization are preferably effected in the absence of oxygen, carbon dioxide and water and desirably in an inert medium such as pentane, hexane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, the higher paraffins, benzene, xylene, dichlorobenzene, chlorinated naphthalene, sodium dried petroleum ether or mixtures thereof. The polymerization may be batchwise or continuous and optionally the catalyst may be formed in situ.  In examples ethylene is added intermittently, and catalysts are destroyed and the products purified with ethanol, hydrochloric acid or ethanolic hydrochloric acid.  The products are linear and may be formed into films, fibres or moulded articles.  Specification 827,464 also is referred to.
Patent GB-227966-A (GB)
Title: Improvements in hydraulic bituminous cement in powder and process for its production
IPC: C04B18/02
Filed: 1924-09-10
Abstract: 227,966. Coletta, G. D. Sept. 10, 1924. Compositions containing bitumen and Portland cement consist of 15--20 per cent of asphaltic bitumen, 80-75 per cent of Portland cement, 3-4 per cent of lime, and 2-1 per cent of inert substances such as silica. The lime, silica, and part of the cement are added to the melted bitumen, and the mixture after cooling is crushed and ground in cooled mills with the remainder of the cement, to which a little cement clinker may be added. The product is used in the same way as Portland cement.
Patent GB-1196957-A (GB)
Title: Improvements in or relating to the Purification of Photographic Emulsions
IPC: G03C1/015
Filed: 1967-06-28
Abstract: 1,196,957. Purifying silver halide emulsions. FUJI SHASHIN FILM K.K. June 28, 1967 [June 29, 1966], No.29814/67. Heading G2C. Gelatine silver halide emulsions are purified by flocculation, desalting by mixing with water, followed by centrifugation at a temperature of 5-25‹ C. and a centrifugal force from 10-1000 G. Flocculation maybe affected by (i) adding Glaubers salt (ii) adding the condensate of formaldehyde with sodium naphthalene sulphonate, sodium polyethylene sulphonate, condensate of N-acryloyl morpholine and sodium styrene sulphonate or sodium polystyrene sulphonate and lowering the PH or (iii) employing an emulsion comprising phthalated or carboxymethylated gelatin and lowering the pH. The pH may be adjusted to 2À5 to 5À0 with sulphuric boric or salicylic acid prior to flocculation.
Patent GB-712643-A (GB)
Title: Improvements in or relating to electrical gas discharge tube circuits
Inventor: BRANCH MAURICE CHARLES
IPC: H03K17/52
Filed: 1951-12-20
Abstract: 712,643. Digital electric calculating apparatus. STANDARD TELEPHONES & CABLES, Ltd. Dec. 20, 1951, No. 29858/51. Class 106 (1). [Also in Group XL(c)] Fig. 2 shows a storage element in which the condition to be stored is represented by a positive pulse applied at I which is of sufficient amplitude to fire the trigger electrode-cathode gap only of the gas-filled cold cathode tube V2. To verify whether the stage is in the stored condition a positive pulse is applied at P to the anode of the tube via rectifier MR1, if the tube is in the stored condition the main anode/ cathode gap fires and a positive pulse is produced at the cathode. The cathode potential is prevented from becoming more negative than -50 volts by the "catcher" rectifier MR2, so that until the cathode voltage rises above 50 volts the impedance of the cathode load is equal to the forward resistance of rectifier MR2. When the tube is in the stored condition and is tested the anode pulse applied at P is gated through the stage, rectifier MR2 is blocked and the cathode impedance is equal to that of resistor R2. Thus the stage has effectively a variable cathode load so that it is possible to obtain a large amplitude output pulse whilst still keeping within the operating limits of the tube. In a modification shown in Fig. 3 four storage tubes VI-V4 have their cathodes connected via rectifiers to a common load R4 and a "catcher" rectifier MR2: Each tube has a separate input to its trigger electrode and the "storage" state of a tube is tested by applying a positive pulse to its anode via rectifiers at inputs P1-P4. The circuit may be used for storage in a binary code of a single decimal digit a discharging tube representing the binary digit 1 and a non-discharging tube the digit 0 so that on testing the tubes in sequence a pulse train is developed at the output 0 which represents the binary coded value of the digit. Fig. 6 shows a stage of a binary counter in which tubes B1, B2 are connected by capacitor C2 to function as a binary pair the output " carry pulses from which are gated through an interstage coupling tube B3, when it is rendered conductive. In a modification (Fig. 7, not shown) the " carry" " pulse is taken from the cathode circuit of one tube of the binary pair. Fig. 8 shows part of a counting chain comprising two tubes having a common anode load R8 in which when an incoming pulse applied to a trigger electrode fires a tube the previously fired tube is extinguished by the voltage drop in resistor R8. The driving pulse is gated to the cathode of the previous tube via rectifier MR5 as well as to the trigger electrode of the tube to be fired.
Patent GB-445879-A (GB)
Title: Improvements in and relating to machines for filling collapsible tubes
IPC: B65B3/16
Filed: 1934-10-18
Abstract: 445,879. Filling collapsable tubes. TENNANT, W. J., 111, Hatton Garden, London.-(Stokes Machine Co., F. J.; 19th Street, Philadelphia, U.S.A.) Oct. 18, 1934, No. 29894. [Classes 94 (i) and 125 (ii)] A machine for filling collapsable tubes, comprises a fixed filling nozzle 5 having a cut-off valve at its discharge end, and an intermittently operated rotary pump 21 for feeding the filling material to the nozzle, a byepass for returning surplus material to the inlet side of the pump, and mechanism for lifting the tubes in succession to the filling nozzle. A reciprocative lifter 6 works through openings in a rotary tube 1 for raising the tubes to the filling nozzle 5 and a lifter 19 to the clip forming mechanism. The tubes are creased by a reciprocative dart 15 mounted in a slide 16. Metal strip a is fed in ribbon form to the clip forming mechanism and is clinched over the creased tubes by the jaw 46. Means are provided to prevent the filling nozzle from operating in the absence of a tube. An ejector 20 throws out the finished tubes.
Patent GB-945862-A (GB)
Title: Gas turbine by-pass engines
Inventor: INGRAM JOHN
IPC: F02K1/38
Filed: 1961-08-18
Abstract: 945,862. Gas turbine jet engines. ROLLSROYCE Ltd. Aug. 10, 1962 [Aug. 18, 1961], No. 29960/61. Heading F1J. A gas turbine by-pass jet engine comprises a by-pass duct also an ancillary air duct each of which is arranged to receive air compressed by the engine compressor, there being conduit means for introducing air from the by-pass duct into the jet pipe to mix with the turbine exhaust gases therein. Further means are provided which are operable when compressed air is being drawn off through the ancillary air duct, for altering the ratio of effective flow areas of the conduit means and of the turbine exhaust duct so as to maintain the by-pass ratio substantially constant. In the engine shown, the low pressure compressor 13 and the low pressure turbine 21 are mounted on a common shaft 23, and the high pressure compressor 16 and the high pressure turbine 20 are mounted on the common hollow shaft 24. The by-pass air duct is indicated at 15 and the ancillary air duct at 25, the latter being controlled by a valve 26. Air tapped from the high pressure compressor may be supplied through the duct 25 for example for boundary layer control to assist landing and take-off of an aircraft in which the engine is mounted. A number of shoots 27, 28 are provided through which by-pass air flows to mix with the turbine exhaust gases flowing through the duct 22, two of the shoots 28 being relatively short as shown while the remainder of the shoots 27, of which there may be eight, are deeper. The two shoots 28 have associated therewith valve members 31 each of which is pivotally mounted at 32 and operable by a double-acting ram 35 through a rod 33. When the valves 31 are in the open position, by-pass air flows through shoots 27 and 28 into the turbine exhaust gas stream, but when the valves 31 are in the closed position shown by broken lines, by-pass air flows only through the shoots 27. When valves 31 are closed so reducing the effective area of the by-pass duct, the effective area of the turbine exhaust duct is increased. The valves 31 are arranged to be closed when the valve 26, which controls flow through the ancillary air duct 25, is open.
Patent GB-1395357-A (GB)
Title: Detergent composition
IPC: C11D3/20
Filed: 1972-06-27
Abstract: 1395357 Detergent compositions KAO SOAP CO Ltd 27 June 1972 [1 July 1971] 29982/72 Heading C5D A detergent composition for washing agricultural products such as vegetables and fruit comprises (A) 5 to 50 parts by wt. of a surfactant consisting essentially of 5 to 95% by wt. of a water-soluble polyoxyethylene sorbitan fatty acid monoester and 95 to 5% by wt. of a fatty acid alkylolamide, and (B) 1 to 50 parts by wt. of an organic acid salt having a chelating ability. The fatty acid moiety of surfactants (A) contain 8 to 22 carbon atoms. Salts (B) may be alkali metal or ammonium salts of gluconic acid, citric acid, malic acid, tartaric acid, oxalic acid or lactic acid. Solid compositions may also contain Na 2 SO 4  and liquid compositions may contain a C-C alcohol, a C-C alkyl benzene sulphonate or urea.
Patent GB-841278-A (GB)
Title: Improvements in or relating to data storage equipment
IPC: H04L13/08
Filed: 1958-09-19
Abstract: 841,278. Electric digital-data-storage apparatus. STANDARD TELEPHONES & CABLES Ltd. Sept. 19, 1958 [Sept. 21, 1957], No. 30053/58. Class 106 (1). Equipment for storing binary data includes a magnetic core matrix controlled by a chain of magnetic switches through which a " 1 " condition is stepped and having a control lead interconnecting all even switches and another control lead interconnecting all odd switches, each adjacent pair of switches being associated with a column of the matrix, the arrangement being such that each pulse applied to one control lead causes a positive half-current in the column wire associated with the magnetic switch in the " 1 " condition, and each pulse applied to the other control lead causes a negative halfcurrent in the column wire associated with the magnetic switch in the " 1 " condition. In the magnetic core matrix shown, the columns are sequentially selected by a magnetic counting chain comprising cores 4, 5 which are alternately driven to " 0 " by pulses A, B. Assuming the first (left-most) core 4 to be in the " 1 " condition, when it is restored to " 0 " by the first pulse A, a positive half-write current will be induced in the first column of the matrix and the " 1 " will be stepped to the next core 5. The first pulse B will similarly cause the core 5 to be restored to " 0 " and the second core 4 to be set to " 1 ", thus inducing a negative halfread current in the second column. When the second pulse A is received, this column will receive a half-write current from the second core 4, and so on. The matrix may be employed as a buffer store, characters, e.g. sensed from a magnetic tape, being applied in succession in binary-coded form by transistor current generators 3 in synchronism with the column half-write currents. The characters thus stored in successive columns are read out by applying pulses to common wire 10 in synchronism with the column half-read currents; if this information, read out via amplifiers 13, is to be retained, it is applied to generators 3 so as to be written back in synchronism with the rest following half-write currents. The information may be read out to a drum or an arithmetic unit. In a modification (Fig. 2, not shown), the positive and negative half-currents are obtained from alternate cores of the counting chain.
Patent GB-989629-A (GB)
Title: Improvements in or relating to electrical circuit assemblies
IPC: H01R12/70
Filed: 1961-08-21
Abstract: 989,629. Circuit assemblies. SCHWEIZERISCHE WAGONS - UND AUFZUGEFABRIK A.G. SCHLIEREN-ZURICH. Aug. 21, 1961 [Sept. 2, 1960], No. 30139/61. Heading H1B. A logical switching assembly comprises a four-sided frame, opposite sides 3, 4 of which have slots at their upper edges to receive a plurality of parallel strip-like conductors 7 and the remaining sides 5, 6 of which have slots at their lower edges to receive a further plurality of parallel strip-like conductors 8, interconnection being made between selected ones of the conductors 7 and 8 where they cross by components whose terminal leads engage in retaining clips 15 formed in the material of or attached to the strips 7 and 8. The assembly is completed by a further structure comprising an insulating block 25 housing a plurality of transistors, the emitter leads of which are all connected to a common conductor 34 and the collector and base leads of which are connected to selected ones of the strips 7 and 8 respectively. The retaining clips in the strips are preferably formed as shown in Fig. 5, the leads 16 engaged thereby being shown in section. The strips 7 and 8 are provided with holes at their ends and these are aligned with holes running within the sides 3 and 4 along their length so that the strips 7 and 8 may be retained within their slots by means of rods 9 and 10 placed within the holes. The side 3 of the frame, Fig. 4, is provided with a plurality of apertures each of which contains a connecting member which has a part projecting within the frame. Those passing through the lowest apertures 28 are bent downwards to make connection with the common connector 34, those passing through the highest apertures 26 are bent upwards to make contact with respective strips 7 and those passing through apertures 27 make contact with respective conductors of a cableform 37 leading to respective strips 8. The transistors are housed in recesses within the block 25 which is attached to the side 3 and the collector, base and emitter leads therefrom are taken to respective ones of the connecting members within apertures 26, 27 and 28 respectively. Components may be secured in position after insertion by dip-soldering or high-frequency heating. A plurality of these assemblies may be stacked vertically one upon another and held by suitable fastening members. This produces a chimney effect within the assemblies to aid cooling by ventilation. The strips 7 and 8 may alternatively be arranged so that all the strips of one set are turned to lie in the plane of the set, i.e. horizontally in the Figure shown instead of vertically. In this case the clips 15 are replaced by tapering slots in the strips through which the leads 16 pass and are wedged in place.
Patent GB-229416-A (GB)
Title: A new or improved variable electric condenser
IPC: H01G5/06
Filed: 1923-11-30
Abstract: 229,416. Turner, M. R. Nov. 30, 1923. Condensers.-A variable condenser utilizing two of the three condenser variables (viz., overlapping area, distance, and dielectric constant) for fine and coarse adjustment, is provided with means for obtaining any desired relationship between the position of the condenser control and the capacity value. In the form shown, the coarse adjustment is obtained by varying the distance between the plates 3, 4 carried by a rotary spindle, and plates 1, 2. For this purpose a slide 14, mounted on a plate 13 carried by the spindle, is connected by links 19 to the plates 3, 4, the links being kept under tension by springs 20. A roller 15 on the slide engages a cam 21 mounted between the portions 5, 6 of the casing, which are secured together by bolts 7. The spindle is provided with a control knob 10, and the cam may be designed to give any desired relation between the movement of the control knob and the capacity variation. The plate 1 is mounted on a sleeve 8 which carries the spindle, the sleeve and plate normally rotating with the spindle by virtue of the friction between the parts, reinforced by a spring washer 31. A fine adjustment of the capacity may be effected by rotating the plate 1 in its own plane by means of an arm 11 provided with an operating knob 12 extending through a slot in the scale disc 29 carried by the main control knob 10. The plates 1, 2 are each in the form of concentric semicircles of different diameters, so that the fine adjustment affects the main capacity to the same extent proportionately. whatever the position of the main control knob. A small plate 27, which can be adjusted relatively to the fixed plate 2, is provided for compensating for stray capacities.
Patent GB-887827-A (GB)
Title: An improvement in or relating to agricultural machines
Inventor: ASHFIELD HERBERT EDWARD
IPC: A01F12/44
Filed: 1959-09-04
Abstract: 887,827. Rotary sieves. BROWN INDUSTRIES Ltd., DAVID. Aug. 26, 1960 [Sept. 4, 1959], No. 30186/59. Class 117. A harvester feeds grain, weed seeds, chaff &c. through a duct 11 to a rotatable cleaning drum comprising concentric cylinders 13, 14 and 15. The outer cylinder is plain except for a short perforated section 12 at its rear end, and the other cylinders are perforated, with the perforations in the inner cylinder 15 larger than those in the cylinder 14. Each of the cylinders 14 and 15 comprises accurate sections 21 of wire mesh with reinforced edges, or perforated sheet metal, slid into circumferentially spaced frame members 18 mounted on inwardly extending prongs 16 secured to the outer cylinder. The members 18 may be disposed parallel to the drum or helically. Grain and weed seed fall to the space between cylinders 13 and 14 and are displaced rearwardly by a helical ridge, and the seed falls through the perforations in the outer cylinder into a hopper 24. Grain falls into a trough 22 containing an auger 23, and the chaff &c. falls clear of the trough on to the ground. Specification 854,184 is referred to.