baber/WOPTO huggingface dataset:
Patent GB-291248-A (GB)
Title: Improvements relating to platens for typewriting machines
IPC: B41J11/24
Filed: 1927-06-21
Abstract: 291,248. Salter & Co., Ltd., G., Bache, E. W., and Bell, A. June 21, 1927. Paper-supports.-A removable platen-roller is secured in the carriage by means of detents each consisting of a sliding member 4, Fig. 2, which is held in engagement with the platen spindle 3 by a spring 12 and is so mounted that, after being withdrawn to release the platen spindle, it can be rocked and is then automatically locked in the released position, thus leaving the operator free to remove the platen roller. Preferably, the member is formed with a slot which engages studs 6, 7 on the carriage and has a recess 8 for cooperating with the stud 6 to lock the member when withdrawn.
Patent GB-871161-A (GB)
Title: Improvements relating to the production of junction transistors
Inventor: THOMAS ARTHUR DERRICK
IPC: H01L29/00
Filed: 1959-05-13
Abstract: 871,161. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 27, 1960 [May 13, 1959], No. 16446/59. Class 37. A transistor is provided with a low resistance surface layer which is etched to form troughs which surround the collector and emitter pellets and which penetrate completely the low-resistance layer. Fig. 2 shows a stage in the manufacture of a transistor of n-type germanium B which is provided with a low-resistance layer L by diffusing an n-type impurity such as arsenic or antimony into the whole surface of the wafer for example by exposing it to antimony or arsenic vapour. Pellets E and C of p-type material, e.g. indium, are fused to opposite sides of the wafer until they penetrate the surface layer forming PN junctions j<1>, j<2>; 10 minutes at 550‹ C. is suggested. The base contacts which may be in the form of a ring surrounding the emitter and soldered to the low-resistance layer is then applied. Finally, the indium pellets are made the positive connection in an electrolytic etching bath, the negative connection being constituted by electrodes in the bath, possibly by the stainless steel lining of the bath. This produces troughs T (Fig. 4) surrounding the indium pellets and penetrating the low-resistance layer. The effect of this is to make the emitter-base resistance independent of the relative sizes of the emitter pellet and the surrounding hole in the base connection S. Fig. 5 shows a construction in which a spiral emitter E surrounded by an etched trough increases the emitter periphery to area ratio. S<1> is the base contact. A zig-zag or simply rectangular emitter is also suggested.
Patent GB-1452169-A (GB)
Title: Hay preservativves
IPC: A23K3/02
Filed: 1974-04-16
Abstract: 1452169 Preserving hay FEED SERVICE (LIVESTOCK) Ltd 28 Oct 1974 [16 April 1974] 16505/74 Heading A2B Hay is protected from bacterial decay by applying sorbic acid to it, preferably in solution, with propionic and/or butyric acid in amounts of 0.4 to 2 lbs/ton of hay. Additionally the sorbic acid may be admixed with one or more of formaldehyde, acetic acid, benzoic acid, iso propanol, propylene glycol, an antioxidant or a flavouring. Such compositions usually contain 4-24% by wt. of sorbic acid and are applied in amounts of 5 to 30 lb/ton of hay.
Patent GB-170250-A (GB)
Title: Improvements in magazines for machine guns
IPC: F41A9/65
Filed: 1920-07-06
Abstract: 170,250. McCrudden, J. C. R. July 6, 1920. Cartridge magazines. - A segmental-shaped magazine 1 with cartridges arranged in laterallystaggered order is carried by a frame 6, 7 which fits detachably over a pin 9 on the gun, the delivery end 2 of the magazine being supported by a catch 4. The magazine has its inner wall 17 slotted to receive a spring-actuated arm 16 which acts on the platform 19 through a second spring 18 to force the cartridges upwards against lips 13 ready for insertion in the gun chamber.
Patent GB-582488-A (GB)
Title: Improvements relating to electron discharge devices of the velocity modulation type employing resonating chambers
IPC: H01J25/24
Filed: 1941-12-22
Abstract: 582,488. Yelocity-modulated tubes. BRITISH THOMSON-HOUSTON CO., Ltd., and SCOTT, W. J. Dec. 22, 1941, No. 16531. [Class 39 (i)] In electron discharge apparatus of the velocity-modulation type comprising an electron gun 9, a resonator chamber 2, with a resilient wall 8 which is distorted to vary the width of the gap 2<1>, and a reflecting electrode 10, a rigid portion 1 of the resonating chamber, the electron gun 9 and the reflecting electrode are all rigidly supported by the stem portion 3 of the envelope or in relation thereto, and the resilient wall portion 8 of the resonating chamber is connected to a flexible part 6 of the envelope at the end remote from the stem. As shown, the envelope comprises a glass portion 4, a rigid metal portion 5 and the flexible end 6. The resonator is formed by a cavity in the heavy disc 1 of metal such as copper, which is preferably brought into close proximity to the part 5 of the envelope, and thermally connected thereto by melting tin into the space therebetween during evacuation. The support for the reflecting electrode 10 is a stout wire 11 which is cranked to pass round the disc 1 through an aperture therein. A member 13 screwed in a vacuum tight manner through the wall 6 is secured to the wall 8 of the resonating chamber, and functions as the abutment for an external adjusting screw. A concentric line output lead passes through the envelope and is sealed by a glass bulb 20. Alternatively, the inner conductor of the concentric line passes through a glass seal. In another arrangement, Fig. 2 (not shown), the disc 1 is sealed between two metal parts of the envelope. Specification 579,412 is referred to.
Patent GB-1504947-A (GB)
Title: Rocking key assemblies
IPC: G10H1/34
Filed: 1975-04-22
Abstract: 1504947 Snap-action switches WURLITZER CO 22 April 1975 [19 June 1974] 16533/75 Heading H1N [Also in Division G5] A stop tablet assembly 24 including a switch for an electronic organ comprises a base 44, means, e.g. apertures 46 on the base for receiving a stop tablet, pivotal mounting means 48 on the base, a stop tablet 64, pivot means, e.g. notches 70 on the stop tablet co-operable with the mounting means 48, and a spring 124 acting between the base and the stop tablet biasing the stop tablet against the mounting means 48 and providing an overcentring action to rocking of the stop tablet. The movable contact is in the form of a spring 138 soldered to a printed circuit board 34, the spring 138 engaging a bus-bar 140 in the 'on' position.
Patent GB-1268382-A (GB)
Title: Improvements in and relating to apparatus for setting printed music
Inventor: FELLGETT PETER BERNERS
IPC: B41J3/34
Filed: 1969-03-28
Abstract: 1,268,382. Typewriters; music printing. NATIONAL RESEARCH DEVELOPMENT CORP. 15 June, 1970 [28 March, 1969], No. 16543/69. Heading B6F. Apparatus for taking a manual input of music and producing an output of printed sheet music includes a manual input device 11 operating in a similar manner to an electronic organ for passing digital music information to a computer 12. A graphic display device 13 presents on a cathode ray tube a display of the rough draft, and a graphic input device 14 allows for correction of the draft. The printer (Fig. 4) comprises an electronic spherical type head printer with a pen (27) as described in Specification 1,267,378. The musical keyboard of the input device is connected to a gating network (16, Fig. 2) and read buffer (18) via a plurality of micro-switches, one for each key. The read buffer is connected to the computer 12, which is programmed to obtain two separate sets of information: (a) the pitch of each note played, and (b) the time for which each key is depressed, so as to derive the note value of the note played. The time can be determined by measuring the difference between the times at which the key is depressed and released or alternatively clock pulses can be counted during the time which the key is depressed.
Patent GB-662373-A (GB)
Title: Improvements relating to electric switches and contact arrangements therefor
IPC: H01H23/12
Filed: 1949-06-22
Abstract: 662,373. Press-button retractive switches; tumbler switches. SCHOLES & CO., Ltd., G. H., PEARCE, F. J. and PEARCE, G. S. July 11, 1950. [June 22, 1949] No. 16547/49. Class 38 (v). The movable contact plate a is arranged to pivot about a fixed contact c into and out of engagement with a further fixed contact b, springs d, e acting on the plate a on opposite sides of its pivotal point. In one form, Figs. 2, 4, spring e is guided by a plunger h acted on by a lever g and dolly f, operation of the dolly to the Fig. 2 position compressing spring e to close the contacts and operation to the Fig. 4 position allowing spring d to open the contacts. In a double-pole switch, Fig. 5, four springs are arranged between two plates a and two operating plates g which have turned-over ends engaging in recesses i in the switch housing, a dolly being arranged to engage the parts g<SP>1</SP> of plates g to close the contacts. The contacts may, alternatively, be closed by a push-button or solenoid-operated mechanism.
Patent GB-1028281-A (GB)
Title: Improved process and apparatus for producing bulked yarns
IPC: D02G1/02
Filed: 1963-04-26
Abstract: In the continuous production of (modified) bulk yarn (or yarn in which latent bulk properties may be released or further developed at a later stage e.g. of knitting, weaving or fabric finishing) a false-twist crimped yarn is cold-stretched at ambient temperature in its passage between rollers at the exit of a twist-setting oven and the entrance to another oven (the two ovens being combined) and is hot-stretched between entrance and exit rollers of the second oven in its passage therethrough.
Patent GB-1505125-A (GB)
Title: Manufacture of cable envelopes from metal strip
IPC: B21C37/10
Filed: 1975-04-22
Abstract: 1505125 Making cable envelopes LIGNES TELEGRAPHIQUES ET TELEPHONIQUES 22 April 1975 [2 May 1974] 16629/75 Headings B3A and B3E [Also in Division H1] A method of making an electric cable envelope comprises corrugating a metal strip along its width and along its length with the depth of the lengthwise corrugations varying as their distance from the axis of symmetry of the strip and forming the strip into a cylindrical envelope over the cable core. The corrugations are formed by passing the strip between shaped rolls and the transverse and longitudinal may be formed successively or simultaneously. By varying the depth of adjacent longitudinal corrugations, buckling of the strip edges is prevented thereby improving the quality of the joint when the edges are welded together to form the cylindrical envelope.
Patent GB-467701-A (GB)
Title: Process for rendering materials moth-proof
Filed: 1936-06-15
Abstract: 467,701. Mothproofing. GEIGY AKT.- GES., J. R. June 15, 1936, No. 16637. Convention date, May 9. [Class 140] Textiles, furs, feathers, wool, hair, &c., are proofed against moth, by treatment with a solution or mixture containing thianthrene or a derivative or substitution product thereof, for example, by brushing, spraying or immersion. The thianthrenes may be dissolved in water, hydrocarbons, chlorinated hydrocarbons, alcohols, ketones, &c., or mixtures thereof, or emulsified in oils, fats or creams, or added to powders or used in any of the forms usual for mothproofing compositions. They may be used in combination with other mothproofing agents. Suitable thianthrene compounds are 2 : 6-dimethylthianthrene ; 1 : 3: 5: 7-tetramethylthianthrene ; 2-chlorothianthrene ; 2 : 7-dichlorothianthrene ; 2 : 7-dichloro-3 : 6 dimethyl thianthrene; 4: 5-dichloro-1 : 8-dimethyl thianthrene ; thianthrene dicarboxylic acid ; dimethoxythianthrene ; 2 : 3 : 6 : 7- tetramethoxythianthrene ; dinitrothianthrene ; 3 - nitro - 6 - methylthianthrene ; 3 - nitro - 8- methoxy - 5 - methylthianthrene; 6 - chloro - 3- nitrothianthrene 5 : 8 - dichloro - 3-nitrothianthrene ; 3-amino-6-methylthianthrene hydrochloride ; thianthrene sulphonic acid ; naphthianthrene ; thianthrene-S-oxide ; thianthrene- S - dioxide ; thianthrene monosulsulphone ; thianthrene disulphone; 2 : 6-dimethylthianthrene-S-oxides ; 2 : 3 : 6 : 7 tetramethoxythianthrene-S-oxides; 3 : 7-dimethoxy-2 : 6- dioxythianthrene disulphide.
Patent GB-706261-A (GB)
Title: Improvements in or relating to spanners
Inventor: ROBERTS HARRY ROBERT JAMES
IPC: B25B13/48
Filed: 1951-07-13
Abstract: 706,261. Spanners. BRITISH TRANSPORT COMMISSION. July 11, 1952 [July 13, 1951], No. 16704/51. Class 61 A spanner for turning nuts which have spaced radial holes or notches instead of flats comprises two jaws each having a projection adapted to engage diametrically opposed holes or notches, a handle and cam means acting between the jaws to effect, closing of the jaws on torque being applied to the handle. As shown in Fig. 1 a jaw carrier comprises two metal plates held in spaced relation by rivets 13, 11, 12 on which are pivoted respectively a handle 17 and a pair of jaws 14. Each jaw has an inward projection 15 and may be provided with side flanges for engaging the faces of the nut or a spring plunger to engage a third hole in the nut. The tails 16 of the jaws extend along the sides of the handle and are connected by a spring 18 which urges the jaws into open position. The side edges of the handle 17 and inner edges of the tails 16 constitute the cam means. In a modification, Fig. 5, a handle 24 is fixed to side plates 25 and the jaws 28 are slidable on a rectangular guide bar 26 pivoted on a rivet 27 extending between the plates. Pins 32 extending between the side plates engage cam surfaces 31 on the jaws. In another modification one jaw is integral with the handle the second jaw being connected to the handle by a pair of pivoted links, cam surfaces being provided on the handle and second jaw.
Patent GB-1192581-A (GB)
Title: Absorbent Dressing
IPC: A61F13/22
Filed: 1967-04-12
Abstract: 1,192,581. Diapers. JOHNSON & JOHNSON. 12 April, 1967 [20 May, 1966], No. 16733/67. Heading A3V. [Also in Division A5] A diaper comprises a carrier having incorporated in its structure a waterinsoluble cross-linked polyacrylamide which is capable of absorbing at least 15 times its weight of body exudate and in doing so swelling while maintaining its integrity. The polyacrylamide may be in the form of particles, fibres, thin film, or a cellular structure, and may be used in admixture with a cross-linked sulphonated polystyrene. The carrier may be an absorbent mass or pad of material conventionally used in absorbent dressings, e.g. textile fibres, paper.
Patent GB-545504-A (GB)
Title: Improvements in or relating to fuel tanks for aircraft
IPC: B64D37/06
Filed: 1940-11-22
Abstract: 545,504. Tanks. WILKINSON, B., and LE GOOD, K. M. Nov. 22, 1940, No. 16787. [Class 69 (i)] A rigid fuel tank for aircraft &c. has a self sealing covering comprising at least one layer of a rubber which swells on contact with petrol or oil, and an external layer, bonded to the rubber, of material such as leather, vulcanized rubber, doped fabric or treated asbestos cloth, which protects the rubber against contamination by fuel and gives added strength, the whole being bonded to the tank by a fuel-resisting cement which, on penetration of a bullet, will break away locally from the tank and stick to the covering. The rubber is preferably that known under the Registered Trade Mark " Linatex" and described in Specification 437,928, [Group V]. In Fig. 1, the metal wall 10 of the tank has a covering 11 of " Linatex " bonded by rubber solution to fabric 12 which is bonded to the tank by cement known under the Registered Trade ark " Cellon-Linatex," an outer layer 13 of doped 'fabric being bonded to the Linatex " ; the bonding of the " Linatex " to the layers 12, 13 of fabric may be effected by the cement known under the Registered Trade Mark " Solufix." In another form, two layers of " Linatex " are bonded together, while in a further form, a layer of sponge rubber is interposed between the layers of " Linatex " ; the sponge rubber is preferably of the kind containing air in separate cells. In Fig. 5, strips of fabric &c. treated on both sides with " Cellon-Linatex " ; are applied in lattice formation to the tank and a layer 12 of fabric attached thereto, layers, 14a, 14b, of sponge rubber, layers 11a, 11b of " Linatex and a layer 13 of doped fabric being then applied and bonded together. " Neoprene " cement may be used for bonding the covering to the tank.
Patent GB-699662-A (GB)
Title: Improvements in or relating to a vibrator
Inventor: ROUBAL ALEXANDER JOHN
IPC: B06B3/00
Filed: 1951-07-16
Abstract: 699,662. Reciprocating motors. ALLISCHALMERS MANUFACTURING CO. July 16, 1951, No. 16806/51. Class 35. [Also in Groups XXIV, XXX and XXXII] In a vibratory mechanism for reciprocating, for example, a material feeding pan 1 with respect to a frame 2, the reciprocable mass is connected by means of a spindle 6 to one or more spring diaphragm discs 17 secured at their peripheries to the frame 2. The number and strength of the discs is arranged so that the assembly is in resonance with the reciprocations of the motor unit which may be an electromagnetic one with its armature 29 secured to the spindle 6 and working between electromagnets 28. A leaf spring 32 may also be provided to support the armature in addition to the discs 17. The discs are preferably thickened at their centres and peripheries where they are secured, or alternatively, spacing rings may be provided with plain flat discs. The discs may have radial slots to allow of assembly transversely over the spindle 6.
Patent GB-1074052-A (GB)
Title: Aircraft having a fixed high-lift wing
IPC: B64C31/028
Filed: 1965-04-21
Abstract: 1,074,052. Aircraft. P. M. LEMOIGNE. April 21, 1965 [May 4, 1964], No. 16843/65. Headings B7G and B7W. [Also in Division F2] An aeroplane has slots extending rearwardly and upwardly through the wing, and a jet propulsion engine arranged with an air intake above the wing and downstream of the slots, to increase the airflow through the slots. The engine comprises a ducted fan and the intake is elongated in the chordwise direction. The wing may be of conventional construction, and formed with slots (Fig. 7, not shown) or comprise a framework carrying pieces of thin flexible material raised by air pressure at their rear edges to form a gap with a following piece. Alternatively the pieces may be thin and rigid, with raised rear edges. The trailing edge of the wing carries hinged slotted elevators, the leading edges of which carry flaps (521, Fig. 6, not shown) for varying the width of slots preceding the elevators. The forward part of the wing is delta-shaped, and its leading edges carry hinged surfaces (42, 42<SP>1</SP>, Fig. 2, not shown) for roll control. Lateral control and lift dumping may also be effected by pieces of material (66) provided with forward and rearward flaps arranged to form either forwardly facing or rearwardly facing slots. Horizontal and vertical control surfaces (38, 40) are provided in the engine exhaust, and further control surfaces extend diagonally from the wing to the rear of a fuselage suspended below the wing. This fuselage carries landing wheels and may also have a flying boat hull.
Patent GB-1503311-A (GB)
Title: Production of thermosetting phenolformaldehyde resins
IPC: C08L61/04
Filed: 1974-04-17
Abstract: A thermosetting phenol-formaldehyde resin is prepared by reaction of phenol with formaldehyde in a ratio higher than 1.7:1. The infrared spectrum of this resin exhibits high absorption peaks at 1230, 1060 and 1030 cm<-1>. The absorption at 1060 cm<-1> is decreased by at least 5 % and the absorption at 1030 cm<-1> is increased by at least 5 % by reacting the resin with a strong acid. The resin thus obtained can be employed for the manufacture of particle boards.
Patent GB-203641-A (GB)
Title: Improvements in float-controlled valve-operating mechanism
IPC: F16K31/26
Filed: 1922-03-10
Abstract: 203,641. Wade, H., (Nash Engineering Co.). March 10, 1922. Ball and float valves.-A float valve actuated by a pivoted float acting through toggle links has an arm 22 on the float lever .20 connected by a link 23 to the valve 17. The float lever is pivoted substantially in alignment with the axis of the valve member which is guided by legs 18 and by a link 25. Specifications 4430/82 and 8120/10 are referred to.
Patent GB-145528-A (GB)
IPC: H01R43/08
Filed: 1920-06-22
Abstract: 145,528. Bosch Akt.-Ges., R. April 29, 1919, [Convention date]. Commutators are formed from bushes of suitable insulating-material, such as Bakelite, steatite, porcelain, or the like, by covering the periphery with a metallic coating by an electrolytic or other process and then sawing through the coating to form the separate segments. In addition to the grooves b separating the segments, shallow grooves c are cut to take the armature wires. The metallic coating preferably also covers the ends and turned-in parts d, e of the bush a. Where the bush consists of a ceramic substance such as porcelain, the grooves b, c are formed in it while it is soft. The bush is afterwards baked and the grooves filled with a plastic material, such as cement, which is removed when the metallic coating is sawn through.
Patent GB-784902-A (GB)
Title: Improvements in or relating to alkaline electric accumulators
IPC: H01M4/80
Filed: 1953-06-18
Abstract: 784,902. Batteries. ACCUMULATORENFABRIK AKT.-GES. June 18, 1953 [June 23, 1952], No. 16926/53. Class 53. An electrode for an alkaline accumulator having a thickness not greater than 1 mm., comprises a metal carrier plate supporting a body of sintered metal, an intermediate layer having a roughened surface being provided to obtain firm adherence between the carrier plate and sintered body. The intermediate layer may consist of the surface of the carrier roughened mechanically or by chemical action. Alternatively metal powder may be applied to the carrier and sintered to produce a rough intermediate layer to which the sintered body will firmly adhere. In another method the carrier is superficially oxidized before the sintered intermediate layer is applied. The intermediate layer may also be applied by spraying. Another method consists in applying copper powder or an alloy of copper and nickel to the carrier, then applying the metal to form the sintered body and raising the temperature to sinter the three layers. Specification 695,854 is referred to.
Patent GB-275007-A (GB)
Title: Improvements in or relating to ironing machines
IPC: D06F65/02
Filed: 1926-07-06
Abstract: 275,007. White, A. E., (Potter, Inc., L.). July 6, 1926. Ironing-machines with rollers rotating against concave surfaces; returning work to the front of ironing-machines.-The roller 24 is supported by brackets 25, 26 that are so shaped that they lie outside the path of the material being ironed. The inner ends of the brackets are formed as racks which engage pinions 51 carried on the roller shaft 29 by friction discs 54 so that on switching the motor in or out, the roller is moved into or out of contact with the bed 22. A guard rod 60, Fig. 6, is provided which, when rocked by the operator's hand &c., switches out the motor. The clothes &c. are fed to the machine over a table 34 and discharged to the front by trays 31, 32. A thermometer 69 is provided and the whole apparatus may be pivoted to fold into a cabinet.