baber/WOPTO huggingface dataset:
Patent GB-843699-A (GB)
Title: Improvements in or relating to semi-conductor devices
Inventor: KAYE JOSEPH BLAMIRES
IPC: H01L23/40
Filed: 1957-10-11
Abstract: 843,699. Semi-conductor devices. PAINTON & CO. Ltd. Oct. 13, 1958 [Oct. 11, 1957] No. 31923/57. Class 37. Semi-conductor devices such as transistors and rectifiers are mounted in heat conducting relationship in a carrier or on a block'of sintered alumina or a ceramic material including a high proportion of alumina. As shown, Fig. 2, a transistor comprising a germanium disc 1 is mounted in a carrier 5 of sintered alumina, which is screwed to a metal base plate 15, the base electrode 4 and the collector 3 of the transistor being soldered to areas 7 of silver on an annular ridge 6 of the carrier, and inside the annular ridge, respectively. The latter area extends through a gap 10 in the ridge, and leads 8, from the areas 7 and the emitter 2, pass through a sealed cover plate 13 mounted on a second annulus 11. In an unsealed embodiment Fig. 1, (not shown) the lead from the area 7 associated with collector 3 is taken through a hole in the carrier 5. In Fig. 3 (not shown), one electrode of a germanium diode is soldered to the single silver area on an alumina slab. The areas of silver may be deposited in the form of a silver-glaze paste on the alumina, which is then fired to at least 500‹C, alternatively a silver resin mixture may be applied and heatcured or chemically cured.
Patent GB-394313-A (GB)
Title: Improvements relating to electric furnaces
IPC: F27D11/02
Filed: 1931-11-18
Abstract: 394,313. Tunnel furnaces. MARLE, M. VAN, Deringham, Summerhill, Kingswinford, Staffordshire, and G.W.B. ELECTRIC FURNACES, Ltd., North Road, Holloway, London. Nov. 18, 1931, No. 31998. [Class 51 (ii).] In an electrically-heated furnace for the continuous treatment of metallic strip, wire, &c., and the firing of pottery &c., comprising a preheating-section E, a main heating-section H, and a cooling-section L, the preheating and cooling sections are connected by go and return ducts p<1>, p<2> for the circulation of a gaseous heat-carrying medium. The ducts p<1>, p<2> are arranged beneath the heating-section H and are connected to the preheating and cooling sections of the furnace by uptakes Ul, U<2> with fans F<1>, F<2>, and downtakes D<1>, D2. Flexible flaps of laminated metal, or metalreinforced material are preferably arranged to rub on the upper and lower surfaces of the strip being heated. In the case of pottery the upper flaps are profiled to allow passage of the articles with the minimum clearance.
Patent GB-406431-A (GB)
Title: Method of producing high emission thermionic cathodes
IPC: H01J9/04
Filed: 1932-11-14
Abstract: 406,431. Electrolytic production of barium tungstate. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, andWALDSCHMIDT, E., 49, Klingsorstrasse, both in Steglitz, Berlin. Nov. 14, 1932,No.32082. Convention date, Nov. 16, 1931. [Class 41.] The Specification as open to inspection under Sect. 91 comprises a method of making a thermionic cathode in which a coating of barium tungstate on a tungsten wire is formed by electrolysis in a bath containing a barium salt, the tungsten wire forming the anode, the tungstate being produced by the combination of tungsten oxide with barium hydroxide, either formed at the cathode or contained in the bath. The tungstate is subsequently split up into tungsten and barium oxide by treating. Chromium, molybdenum or other metal of the sixth group may be used instead of tungsten and calcium strontium, magnesium or other metal of the second group instead of barium. This subject-matter does not appear in the Specification as accepted.
Patent GB-947699-A (GB)
Title: Sterilization method and apparatus
IPC: A61L2/025
Filed: 1961-09-07
Abstract: 947,699. Sterilising by sonic energy. BENDIX CORPORATION. Sept. 7, 1961 [Oct. 3, 1960], No. 32171/61. Headings A5E and A5G. [Also in Division A4] Articles are sterilised and cleaned by immersing said articles in a germicidal solution in a pressure vessel, cavitating said solution by the application of sonic or ultrasonic energy e.g. at 50 kc/s. frequency or less and subjecting the articles to a sterilisation temperature and pressure by increasing the temperature of and the pressure on the germicidal solution. The germicidal solution may be drained from the vessel after cavitation and refilled with a fresh germicidal solution or water prior to sterilisation. After sterilisation the liquid in the vessel may be drained off and the articles rinsed with water. The germicidal solution may contain a bactericidal agent, a wetting agent and water. Specified bactericidal agents are sodium hypochlorite, iodiform, bactericidal quaternary ammonium salts, zephiran chloride and sodium thiosulphate. Specified wetting agents are mixtures of sodium lauryl sulphate and sodium hexametaphosphate; sodium orthosilicate and trisodium phosphate; sodium metasilicate, sodium bicarbonate, tetrasodium phosphate and sodium lauryl and sodium lauryl sulphate and ammonium hydroxide. The invention also relates to an apparatus for cleaning and sterilising articles comprising a pressure vessel 10, with means for supplying and withdrawing liquid from the vessel at port 65 and valve 68, with a plurality of sonic or ultrasonic transducers 48 and 49, fixed to transducer plate 21 disposed in opening 20 sealed by means 24, attached in wave transmitting relation to the pressure vessel and with an electric heater device (31, 32, 34 and 35) disposed in said vessel for increasing the temperature of liquid therein. The apparatus may have a means for spraying rinsing water 42. Specified articles treated are medical and dental instruments.
Patent GB-466174-A (GB)
Title: Improvements in the preparation of rubber mixtures stable to light
IPC: C08L7/00
Filed: 1935-11-20
Abstract: Wax-like products obtained by reducing the carbonyl groups of aliphatic ketones containing at least one carbon chain with at least 10 carbon atoms, preferably the hydrogenation products obtained according to Specification 410,087, [Group III], are incorporated with rubber together with the usual rubber compounding ingredients. The products may be obtained by condensing high molecular fatty acids such as myristic, palmitic, stearic, oleic, ricinoleic, train oil fatty acids, montanic acid, or their esters or fatty oils such as tall oil and seal oil, montan wax or oxidized paraffin wax in the presence of decarboxylating catalysts such as iron at 100 to 450 DEG C., and reducing the resulting mixtures of ketones by treatment with hydrogen in the presence of a catalyst such as nickel: the hydrogenation may also be carried out by means of sodium and alcohol or zinc and hydrochloric acid.  The ketones may also be prepared by heating the calcium salts of high molecular fatty acids.  French Specification 45129 is referred to.
Patent GB-815371-A (GB)
Title: Improvements in or relating to liquid metering devices
Inventor: SHERLOCK JOHN EDWARD
Filed: 1955-11-10
Abstract: 815,371. Regulating fluid How; valves. BRITISH THERMOSTAT CO. Ltd. Nov. 2, 1956 [Nov. 10, 1955], No. 32220/55. Class 135. Liquid, such as fuel, flows from a tank 4, Fig. 1, via an orifice 1, Fig. 2, in a tube 9 and a conduit 2 to an outlet valve assembly 3, one end of the conduit 2 being pivoted to the tube 9 by a hollow pin 12 whilst the other conduit extremity is similarly pivoted on the valve assembly 3. A float 5, with a filter 6 covering inlet apertures 11, supports the tube 9 and conduit 2; the position of the tube relative to the float and hence the liquid level is adjustable by means of a flexible tape, cord or chain 13 attached at one end to the float 5 and passing round the pivot pin 12, the other end of the tape passing along the outside of the conduit 2 to a drum 15 on the assembly 3, which drum is connected by gears 16, 17 and a rod to a manual control knob, not shown ; the tape may be thermostatically actuated. The tube has a vent opening 19. The assembly 3 comprises a valve element 20 carrying a light ball 21 spring-urged against its seat. The valve is opened upon depressing a spring-loaded plunger 23 and maintained in this position by a thermostatically controlled latch, if a burner to which the fuel is supplied has been ignited; in the event of non-ignition or flame failure the latch is withdrawn and the valve closes under the action of its spring. Excess flow forces the ball 21 off the element 20 on to its seat. A pin 25 protruding from the pivot 12 slides in a seat 26, the length of which defines the limits of tube movement; with the tape fully wound up the orifice 1 is above the liquid surface and the fuel flow is cut off. Should the tape break, the tube 9 drops until the pin 25 engages the bottom of the slot 26, whereupon another tube orifice 27 becomes submerged and the resulting increased flow causes the ball 21 to seat. Specification 720,618 is referred to.
Patent GB-753199-A (GB)
Title: Improvements in or relating to electrostatic machines
IPC: H02N1/10
Filed: 1954-11-08
Abstract: 753,199. Electrostatic generators. SOC. ANON. DE MACHINES ELECTROSTATIQUES. Nov. 8, 1954 [Nov. 6, 1953], No. 32251/54. Class 35. Charge transfer from one member to another in an electrostatic generator having insulating or conducting charge carriers is facilitated by ionizing the insulating gas by means of radioactive material, so that the machine voltage may build-up at starting. As shown for a mutually exciting pair of generators 1, 8 having charge carriers 3, 10 and charge-inducing plates 6, 7, 13, 14, radio-active sources 2, 4, 9, 12 are fixed adjacent to the ionizers 5, 15, 16, 12 through which the charge is transferred. In modifica. tions the plates of the two separate machines may be carried on a single H-shaped rotor or in succession on a multi-polar rotor. In order to prevent recombination of the ions produced by the radio-active material and to establish the polarity of the machine, a fixed potential may be applied to one of the charge-inducing plates. The radio-active material, e.g. polonium, may be screened from its insulating mounting by a metal cup. Specifications 702,421 and 719,687 are referred to.
Patent GB-780725-A (GB)
Title: Improvements in or relating to thermoelectric devices
IPC: H01L35/16
Filed: 1953-11-20
Abstract: 780,725. Refrigerating. GENERAL ELECTRIC CO., Ltd., and GOLDSMID, H. J. No. 8, 1954 [Nov. 20, 1953; April 28, 1954], Nos. 32264/53 and 12333/54. Class 29 [Also in Group XXXVI] A refrigerator utilizing the Peltier effect comprises a set of thermocouples each consisting of bars 3, 4 of P and N type bismuth telluride respectively joined by low resistance copper strips 5 and moulded in a wall 6 of insulating material. The junctions are connected in series across a direct current source, the heat evolved at the hotjunctions which are adjacent a finned metal outer wall 7 being dissipated while the cold junctions which are close to the internal surface of wall 6 absorb heat from the refrigerator chamber. The impurity content of the Bi2,Te3 is chosen to give materials with thermoelectric power of between 200 and 350 uV/C. For maximum efficiency the bar dimensions and the current intensity must satisfy certain theoretical conditions which are discussed in the Specification. One element of each thermocouple may be replaced by a metal element. Specifications 587,360 and 588,369 [both in Group XXXVI] are referred to.
Patent GB-631960-A (GB)
Title: Improvements in or relating to radio receivers and other receivers of electrical oscillations
IPC: H04B3/23
Filed: 1946-10-30
Abstract: 631,960. Radio receiving systems. SADIRCARPENTIER. Oct. 30, 1946, No. 32267. Convention date, Nov. 2, 1945. [Class 40 (v)] In a receiver for electrical oscillations transmitted over a radio or other channel wherein parasitic echoes produced in transmission are compensated by artificial compensating echoes which are produced by a bridge network, the network comprises a multi-sectioned delay line 1 having irregularities for producing artificial echoes of the required delays and amplitudes relative to the principal signal. The delay line 1 is fed by a transformer 2, and comprises an equal nimber of sections, consisting of identical inductances 7 and variable condensers 8, on each side of a central point 5 which is connected to the control grid of a valve 6. The delay line is connected to a slider 10 on a potentiometer resistance 11 connected across the secondary of the transformer 2, the slide 10 being also connected through conductor 12 to a grid bias source for the valve 6. When the slider 10 is in its middle position and all the condensers 8 are equally adjusted the bridge is balanced, but when the slide 10 is shifted slightly an alternating voltage is developed between the point 5 and earth which is amplified by the valve 6. When however, one of the condensers 8 is adjusted an irregularity occurs in the line and a reflection or artificial echo of the incoming signal is produced. the delay and magnitude of the echo being dependent upon the position of the condenser, the delay line and the extent to which it is adjusted. The artificial echo appears on the grid of the valve 6 where it is utilized to cancel the real echo. The necessary irregularities in the line may be obtained by using fixed condensers at 8 shunted by adjustable resistances. In a modification for effecting compensation when the delay amplitude of the real echo vary, synchronizing signals are combined with the corrected output of previous signals to actuate threshold elements in the form of a series of valves acting as variable resistances across the condensers 8, the compensation of each signal echo being in accordance with the delay and magnitude of the echo preceding it (Figs. 2 and 3, not shown). Specification 523,434 is referred to.
Patent GB-660825-A (GB)
Title: Improvements in or relating to aircraft control members
IPC: B64C13/04
Filed: 1948-12-14
Abstract: 660,825. Controlling aircraft. MORANESAULNIER. Dec. 14, 1948 [Dec. 16, 1947], No. 32337/48. Class 4. A combined control device for aircraft rudders and landing wheel brakes is provided with means for adjusting the position of control members, even in flight, without interfering with the setting of the individual controls. The control member comprises a horizontal tube 11 rigidly attached to the aircraft structure and enclosing an axially movable internally threaded fitting which engages with the threaded end of a shaft 12 to which is attached a handwheel 18. The movable fitting supports, by means of a spherically seated ball bearing, the upper end of a torque tube 5 which is attached at its lower end to the aircraft structure by means of a similar bearing so that rotation of the handwheel 18 causes the tube 5 to rock in a fore and aft plane about an axis W-W. Two members 2a, 2b are suspended from the tube 11 and are free to pivot about an axis x-x, each respective member being connected by a link 3a or 3b to the extremities of a lever 4a fast with the tube 5 so that swinging movement of the arms 2a, 2b will effect rotation of the tube 5 and a lever 7 attached thereto to actuate the rudder control rod 8. The position of pedals 1a, 1b, is adjusted to suit an individual pilot by rotation of the wheel 18, the resulting fore and aft movement of the pillar 5 causing a magnified movement of the arms 2a, 2b through the arm 4 and the links 3a, 3b. The pedals la, 1b are pivotally mounted for rocking movement on the lower ends of the members 2a, 2b and are each respectively connected by a rod 20a or 20b to one arm of a bell crank 21 each pivoted on the axis x-x and formed with another arm 22a connected to a hydraulic distributing valve 19a to control the application of the wheel brakes. A further arm on each bell crank is formed with a toothed sector 28 which is engaged by one of a pair of connected pawls pivoted to the tube 11 and controlled by a push-pull rod and a button 33 so that all brakes may be locked in selected positions for parking purposes. In a dual control arrangement the rudder control systems are interconnected by a rod 9 and bell cranks 10 and the brake control mechanisms are interconnected by torque tubes 24a, 24b attached to the respective bell cranks 21.
Patent GB-649268-A (GB)
Title: Improvements in and relating to blinds or awnings
IPC: E04F10/04
Filed: 1947-12-08
Abstract: 649,268. Hinges. COOPER, A. R. Dec. 8, 1947, No. 32344. [Class 65(ii)] [Also in Group X] A hinge unit for the stretchers of blinds or awnings comprises a plurality of sockets 10 for receiving the end portions of the stretchers 1, and the sockets are pivctally connected together at 9 in series for relative movement about parallel axes, from a position in which the axes of the sockets are at right angles to a plane containing all the pivotal axes, to positions in which the socket axes are in angular relation to each other. Each socket is made from two parts welded together, and is formed with pointed tongues 16 adapted to be bent inwardly to penetrate the stretcher contained therein.
Patent GB-662729-A (GB)
Title: Improvements in centrifugal pumps
Inventor: HARLOW WALTER FRED
IPC: F04D29/22
Filed: 1948-12-16
Abstract: 662,729. Centrifugal pumps. INTERNATIONAL COMBUSTION, Ltd. Dec. 16, 1949, No. 32400/49. Class 110(i) In a centrifugal pump of the type described in-Specification 564,305, in which an impeller comprises a disc 4 with main blades 11 on one side and auxiliary blades 12 of larger diameter than the main blades on the other side, the boss or hub 4a is of a relatively soft grade of iron and the remainder of the impeller is of a relatively hard grade. A tubular metal shell 7 which separates the boss from the disc has screw-threaded portions 7a and 7b and annular grooves 7c and 7d to prevent rotation of the boss and disc relative to the shell.
Patent GB-1358799-A (GB)
Title: Dermatome with a reciprocable knife
IPC: A61B17/322
Filed: 1972-07-12
Abstract: 1358799 Dermatomes VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT KHIRURGICHESKOI APPARATURY I INSTRUMENTOV 12 July 1972 [15 Oct 1971] 32512/72 Heading A5R A dermatome has a knife 5 reciprocable along guides 4 by means of a crank 17 associated with a drive shaft 16 extending through the handle of the dermatome, and a counterweight 13 reciprocable along the guides 4 in a direction opposite to that of the knife 5 whereby vibration of the dermatome in use is reduced, means being provided for adjusting the thickness and width of the skin transplant being cut away. As described the counterweight is located below the knife and is in the form of a panel connected via rod 21 with a crank pin 19 of crank 17 which is diametrically opposed, with respect to the axis of the drive shaft, to a crank pin 18 connected to a backplate 6 of the knife 5. The means for adjusting the width of the transplant comprises a pair of members 23 independantly adjustable along a calibrated support bar 2 of the dermatome housing. The thickness of the transplant is determined by a bar 26 which is adjustable with respect to the knife blade 9 by a screw mechanism, the thickness of the transplant being indicated on a dial on the support bar 2.
Patent GB-266848-A (GB)
Title: Improvements in or relating to telescopic backsights for smallarms
IPC: F41G1/387
Filed: 1925-12-28
Abstract: 266,848. Birmingham Small Arms Co., Ltd., and Norman, G. Dec. 28, 1925. Sights.- A telescope sight is detachably and adjustably mounted on a smallarm by a swivel attachment at the front permitting of rotation about a vertical axis and a bearing at the rear permitting of lateral adjustment of the rear end of the telescope, this bearing comprising a part on the telescope having an undercut arcuate slot concentric with the swivel axis and a part on the gun having a rib engaging the arcuate slot. As shown, the swivel attachment comprises a ring 2 on the telescope having an ur.dercut stud 6 and a ring 3 on the gun formed with an open-ended slot 7 with which the stud engages. The rear attachment comprises a ring 8 having a base-part formed with a wide arcuate slot 9 and a seating 15 formed on or fitted to the upper side of the breech body and having front and rear ribs 11 engaging the arcuate slot. An adjustment screw 14 is mounted in each side of the base-part of the ring 8, the heads 13 of these screws engaging the sides of the seating 15 on the gun. One of the heads has a cut-away part 16 to facilitate dismounting of the sight.
Patent GB-775499-A (GB)
Title: Improvements in or relating to the production of moulds and cores
Inventor: SNELSON DONALD HORACE
IPC: B22C9/12
Filed: 1954-11-11
Abstract: 775,499. Moulding-processes. FOUNDRY SERVICES, Ltd. Nov. 9,1955 [Nov. 11, 1954], No. 32716/54. Class 83 (1). In a method of making a gas-hardened mould or core, there is placed in position in the unrammed mould or core, a hardening-gas supply-tube B, surrounded by a flexible and collapsible tube A, which latter is subjected, during ramming of the mould or core, to an internal gas-pressure not less than the maximum ramming-pressure. The flexible tube is then allowed to collapse while CO 2  or other hardening-gas is admitted through the interior tube B, and the tube assembly finally withdrawn.
Patent GB-765208-A (GB)
Title: A process for rendering textile materials water-repellent
IPC: D06M13/292
Filed: 1954-11-12
Abstract: 765,208. Waterproofing textile materials. BOEHME FETTCHEMIE GES. Nov. 12, 1954 [Nov. 14, 1953; Nov. 16, 1953], No. 32755/54. Class 140. A process for rendering textile material water - repellent comprises treating the material in an aqueous liquor which contains 1-20 grams per litre of an acid phosphoric acid ester of the formula in which R 1  and R 2  signify the same or different species of high molecular alkyl-, cycloalkyl-, alkylcycloalkyl- or alkylaryl residues, while R  1  or R 2  can also be hydrogen, squeezing off the material and drying it at a temperature above 90‹ C. By the term '' high molecular" is meant that the residues should contain at least 6 carbon atoms. Specified esters of phosphoric acid are the dihexyl, dioctyl, didodecyl, dioleyl, dimontanyl, dimethylcyclohexyl, dinaphthenyl, diabetyl, dibenzyl, dimenaphthyl and dialkylphenyl esters; or the corresponding mixed esters or mono-esters or ester mixtures. Where the solubility of the ester is insufficient, alcohols of low molecular weight such as ethyl or isopropyl alcohol, ketones such as methylethyl ketone, ethers such as glycerine monoalkyl ether or ether-alcohols such as tetrahydrofurfuryl alcohol may be used as solution agents. The acid phosphoric acid esters may be partly neutralized with basic substances such as ammonia or alkylamines or alkylpiperidines of low molecular weight. Amino compounds which contain at least one amino group which is linked to a CO. CS, C(NH) or CN group and which possesses at least one replaceable hydrogen atom may also be dissolved in the impregnating liquor. Specified amino compounds are urea, thiourea, alkylureas, methylenediurea, urethane, guanidine, alkylguanidines, cyanamide, dicyandiamide, dicyandiamidine, methyldiaminotriazine, triaminotriazine, melam, melem, mellon and ammeline. The textile material may be after-treated with dilute solutions of salts of di-, tri- or tetra-valent metals such as aluminium salts or by simple rinsing with hard water. Examples disclose the treatment of textile materials with the following esters of phosphoric acid: the monocetyl, dioctylphenyl, monododecyl, monoalkyl and dialkyl esters. The treatment is applicable to all textile materials, natural or synthetic, in the form of threads, ropes or woven or knitted fabrics.