baber/WOPTO huggingface dataset:
Patent GB-811711-A (GB)
Title: Improvements in semi-conductor devices
IPC: H01L29/72
Filed: 1955-06-15
Abstract: 811,711. Transistors. GENERAL ELECTRIC CO. June 15, 1955 [June 17, 1954], No. 17299/55. Class 37. A transistor comprises a body of one conductivity type with a layer of material of opposite conductivity type on one of its surfaces, an ohmic electrode in contact with the body, and an ohmic electrode and a point contact electrode in contact with the layer. In the embodiment shown in Fig. 1 an N-type body 2 of Ge or Si is provided with a layer or coating 3 of P-type material, e.g. by vacuum deposition. Alternatively a body of iron pyrites which occurs naturally as N-type material with a P-type surface layer, or prepared bodies of Ge or Si which are of similar form may be used. Electrode 5 is ohmic and is a sprayed or vacuum deposited layer of Sn or Pb, or a layer formed by painting on silver powder mixed with a resin and solvent. The electrode 4 is a rectifying point contact of e.g. copper, molybdenum, phosphor bronze, or platinum and is preferably less than 0.005 inch from electrode 5. The ohmic electrode 6 is formed by a tin lead solder or by a solder doped with impurity which enhances the conductivity of the body e.g. with Sb, P, or As in the present case or if a P-type body and N layer is used with A1, Ga, In or Zn. The P-type layer is chosen to have a short diffusion length for minority carriers at least beneath electrode 5 which may be obtained by using special material exhibiting this property, e.g. iron pyrites, Se, CdS, or CdSe or by producing lattice defects by using a vacuum-deposited layer, by local surface grinding or by localized melting and quick freezing of the layer. To match the device to a high-resistance load long diffusion length material may be used under electrode 4. To prevent migration of minority carriers from electrode 5 to electrode 4 a layer of non-uniform thickness, e.g. 1Á thick beneath 4 and 100- 150Á thick beneath 5 may be used. In one modification electrode 5 is of ring form and surrounds electrode 4. In use, a negative bias is applied to electrode 5 relative to electrode 6 and a signal voltage superimposed on this. The load is connected between the positively biased electrode 4 and electrode 6. Where the body is P-type and the layer N-type the biases are of reversed polarity. Greater amplification is obtained when the conductivity of the layer is less than that of the body.
Patent GB-1092188-A (GB)
Title: Improvements in or relating to clothes washing and centrifuging machines
IPC: D06F37/22
Filed: 1966-04-20
Abstract: 1,092,188. Washing machines. FRAME SOC. ANON. April 20, 1966 [April 20, 1965], No. 17325/66. Heading D1A. A washing machine comprises a drum which is rotatable about a non-vertical axis and is rigid with two liquid-tight chambers partly filled with liquid, each chamber both containing at least two eccentric masses freely journalled on the driving shaft of the drum and also comprising a locking device which, below a predetermined speed, determines the position of the masses such that the centre of gravity of the combined masses is located on the axis of rotation of the drum, and which above the predetermined speed releases the masses under the influence of centrifugal force, whereby the masses take up positions for compensating the unbalance of the drum. As shown, the drum 1 is driven by a horizontal shaft 2, and at each end is rigid with a circular chamber 13 partly filled with oil and containing two semi-circular bodies 16 journalled side by side on shaft 2. A band 24, slidably and elastically engaging the inner periphery of chamber 13, carries four leaf springs 21 each of which is rigid with a block 20. The arrangement is such that two blocks 20 normally engage the respective ends of the diametrical side 23 of a body 16, the sides 23 being co-planar, whereby the bodies 16 constitute a disc, the centre of gravity of which is on the axis of shaft 2. Above a predetermined speed, centrifugal force carries the blocks 20 out of engagement to release the bodies 16. When the bodies 16 re-engage the blocks 20 band 24 moves relatively to chamber 13 to absorb shock. In a modification Fig. 5, not shown, a member (27), pivoted intermediately on a body 16, has one end (33) biased by a spring (32), mounted in body 16, into engagement with a recess in a block (34) carried by band 24. The other and weighted end (29) of member (27) moves outwardly under centrifugal force to release end (33) from block (34) above a predetermined speed. It is stated that the bodies 16 may be secured together by a first locking means, and the bodies as a unit are secured to the chamber by a second locking means, both locking means being released substantially simultaneously at a predetermined speed, and that the second locking means may be omitted. Shaft 2 is journalled in bearings 3 connected by flexible watertight members 5 to a stationary tub 4. The bearings 3 are connected to a stationary frame 6 by coil springs 7 and shock absorbers 8.
Patent GB-677486-A (GB)
Title: Means for sealing leakages between conduit flanges
IPC: F16J15/46
Filed: 1950-07-11
Abstract: 677,486. Stopping pipe leaks. PREHODA, E. C. July 11, 1950 [Dec. 30, 1949], No. 17372/50. Class 99 (ii) A plastic sealing medium is forced through passages 26, 3C and 28, 32 into opposed annular grooves 16, 18 in flanges 12, 14, of conduits such as those used in well drilling, by plungers 48 screwed into valves 42 which are screwed into the flanges and are adapted to close the passages. The valves may have an apertured conical nose that seats against shoulders 38 of the passages. To detect leaks between the flanges pressure gauges may be inserted into the plunger recesses.
Patent GB-273737-A (GB)
Title: Improvements in or relating to wireless sets
IPC: H05K3/10
Filed: 1927-06-30
Abstract: 273,737. Champion, L. June 30, 1927. Receiving sets, construction of.- A home constructor's set for making at will a variety of circuits comprises a panel 31, drilled with a large number of holes to receive terminals, valvesockets, and other components, and a series of rigid connecting plates, some rectilinear and others bent or shaped, and drilled at several points, such as those shown at 33 - - 40 and 42 - - 50; and dimensioned so as to co-operate with the holes. The transformers are fixed to a drilled wooden plate 41.
Patent GB-116648-A (GB)
Title: Device for Adjustably Raising and Lowering Railway Carriage Windows.
Inventor: WHITE MORTIMER
IPC: B61D25/00
Filed: 1917-11-27
Abstract: 116,648. White, M. Nov. 27, 1917. Window holders for sliding sashes.-A railwaycarriage window is provided with cleats b', b<2>, b<3> on the sash stiles to engage plates d on the hinged cross bar c to support the sash in the desired position.
Patent GB-197574-A (GB)
Title: Improvements in boat raising and lowering apparatus
IPC: B63B23/04
Filed: 1922-06-26
Abstract: 197,574. Maggi, D. June 26, 1922. Boat raising and lowering gear.-The luffing- davits 4 are provided at their outer ends with casings 16 containing sheaves 29, 31 the lower faces of the casings being curved at 41 and the sheaves being eccentrically disposed relatively to the curved faces. The davits are also provided with integral horns 17 disposed below the casing. The lowering-tackle 25 passes from a winch located at the base of the davits and is rove through the blocks 22, 23, the latter being shaped to engage with the curved surfaces 41 of the davit head, antifriction device 42 operating between the two surfaces. Hauling in on the tackle to recover the boat, thus causes the davits to be brought inboard in proper sequence, and during lowering operations the davits are carried outboard by the weight of the boat owing to a stop 20 on the tackle engaging with the horns 17. The chocking device comprises an eccentric keel holding device positively operated by worm gear.
Patent GB-712075-A (GB)
Title: Apparatus for the extraction of fibrous materials from a conveying stream of air
IPC: D01G23/08
Filed: 1952-07-11
Abstract: 712,075. Centrifugal separators. KASTRUP, E., and KASTRUP, W., [trading as POLLRICH & CO., P.]. July 11, 1952 [July 14, 1951; May 2. 1952], No. 17584/52. Class 23 In apparatus for separating fibrous material from air comprising a housing 1 of cylindrical or slightly conical form, a tangential inlet 2 at one end of the housing, an air outlet 4 adjacent the inlet, and a fibre discharge opening 7 spaced from the inlet and at the opposite end of the housing, the wall 6 of the housing adjacent the opening is formed to guide the fibres smoothly into a device 8 which permits discharge of fibres from the housing without loss of air. The device comprises a wheel 10 rotating within a casing 9. The blades 11 of the wheel have strips 12 of resilient material at their edges or, alternatively, may be formed from resilient material.
Patent GB-222086-A (GB)
Title: Improvements in shock-absorbing devices for thermionic valves
IPC: H01R33/74
Filed: 1924-07-23
Abstract: 222,086. Benjamin Electric, Ltd., (Assignees of Juergens, J., and Benjamin, R. B.). Sept. 17, 1923, [Convention date]. Holders.-A shock-absorbing socket comprises a shell 11 provided with a bayonet groove 16 and resiliently connected with a base member 10 by springs 12 - - 15. The springs are secured to the shell by eyelets 18 and have extensions 12b - - 15<b> fitted to the base member. The extension parts may be connected with the terminals 22. Flat contact - making portions 12<a> - - 15a of the springs are provided with stamped out slots 12<c> leaving edges which keep the terminals of the mounted device clean. The base is provided with an opening 19 and recesses 20, 21 forming a clearance between the base and shell. The Specification as open to inspection under Sect. 91 (3) (a) states that the holder may be applied with incandescent lamps. This subjectmatter does not appear in the Specification as accepted.
Patent GB-165739-A (GB)
Title: Improvements in or relating to coke ovens or the like
IPC: C10B5/00
Filed: 1920-09-08
Abstract: 165,739. American Coke & Chemical Co., (Assignees of Roberts, A.). Sept. 8, 1919, [Convention date]. Gaseous-fuel furnaces.-In a coke oven in which a network of intercommunicating passages is formed in the heating-walls, the gas is delivered through slits in burner blocks, and is mixed with air supplied at one or both sides of the blocks. As shown in connection with a coke oven having a partition wall 28 between the heating-walls of adjacent ovens, the gas supply to the slitted burner blocks 50 is delivered through vertical conduits 53 which extend in the walls 28 to the top of the oven. Each burner block extends from the heating-wall into the partition wall, and the semicircular gas passage therein is so formed and dimensioned that movements of the block owing to expansion and contraction will not affect the connection with the corresponding conduit 53. Air for combustion is supplied from regenerators through side passages 51, and the partitions 56 between adjacent passages are extended above the burner blocks to form combustion chambers 57. Specifications 1570/15 and 150,983 are referred to.
Patent GB-287371-A (GB)
Title: Insecticides and process of producing same
Filed: 1927-07-04
Abstract: 287,371. Marks, E. C. R., (Associated Oil Co.). July 4, 1927. Insecticides. - Nitrogenous basic compounds, which are to be used in insecticides, are obtained from the extract separated in the purification of hydrocarbon materials, such as petroleum or shale oils with liquid sulphur dioxide. The extract is treated with dilute sulphuric or other acid, the same acid being, if desired, used repeatedly to obtain a high concentration, and the acid solution is then neutralized with sodium hydroxide or other alkali, and the free bases distilled off, preferably in steam, and dried. As insecticides the bases may be employed together with a smothering agent composed of a refined petroleum oil, such as transformer oil, having an unsulphonatable residue of about 90 per cent, and an emulsifying agent for the oil, such as an ammonium salt of a fatty acid, for example cocoanut fatty acid. The nitrogenous compounds may be used in sulphate form to replace nicotine sulphate. They may also be used to impregnate fine clay, diatomaceous earth or other inert material, in free or sulphate form, alkali being added in the latter case to liberate the free bases slowly when in use. The bases may also be used with sulphur.
Patent GB-627155-A (GB)
Title: Cutter for vegetables and the like
IPC: B26B3/04
Filed: 1947-07-04
Abstract: A vegetable slicer consists of a multi-bladed knife with a block handle and finger recesses between the roots of the blades.
Patent GB-705163-A (GB)
Title: Improved screed for concrete surfaces
IPC: E01C19/40
Filed: 1950-07-18
Abstract: 705,163. Vibrating screed. WILLIAMS, W. P. (Barnes, R. G.). July 18, 1950, No. 17970/50. Class 107 A vibratory screed for cementitious surfaces comprises a beam of inverted-T section, a tubular member secured to the upstanding edge of said beam, a pair of longitudinally spaced brackets each mounted upon the tubular member solely by means of a clamp the jaws of which embrace only the said tubular member, the tightening means for which being disposed above said tubular member whereby upon slackening said tightening means without disconnecting same, sliding longitudinal adjustment of the brackets along the tubular member is permitted. A leaf spring is fastened to each said bracket and extends therefrom in a direction axial to said beam, and a foot of inverted U-shape is carried by each said spring and extends downward alongside said beam as a support therefor. The beam 13 carries the tubular member 16, the latter supporting the feet 26 by leaf springs 23. The clamp is secured to the member 16 by a screw 22. A vibratory motor 19 is secured to the beam, as shown, and a truss 36 and resilient links 45 control the flexing of the beam. The truss can be varied in length to control the camber imparted to the beam.
Patent GB-154265-A (GB)
Title: Rock drill or rock boring machine
IPC: B25D11/06
Filed: 1919-07-18
Abstract: 154,265. Morimoto, G. July 18, 1919. Percussive drills.-In a hand-driven Percussive rock drill, the blow-inducing cam is such that the forward stroke of the striker is divided into two steps, and a U-shaped rod carried by the striker has curved surfaces, which co-operate with a grooved pulley so as to control the feed of the drill. In the form shown, a mounting- clamp secured to a stretcher bar 97 by a screw 98, Fig. 2, pivotally supports a frame 95, the frame being locked after adjustment by a bolt 99 and carrying a cradle formed of side tubes 6, 7. The cradle supports the driving-gear 1, 2, the main shaft 10, feed-screw 11, and a rockshaft 12 and slidably carries the drill mechanism. The drill mechanism comprises slides 48, 49, sliding on the tubes 6, 7 and connected by ties 55, 56; the slides support the striker 62 while the slide 48 also supports the actuating-cam 46 which is slidably keyed to the main shaft 10 and the slide 49 also supports the feed-nut 64 which is in two parts, the parts being moved in and out of gear with the feed-screw by a cam-groove and pin device. A drill support 68 slidably engages the cradle tubes 6, 7 and rods 53, 54, connected to the slide 49 and carrying springs 51, 52 adapted to press the drill support forwardly; the drill 81 is threaded to a shrouded pinion 78 held in engagement with the drill support by a. spring 78 held in engagement with the drill support by a spring 128, Fig. 7. In operation, the shaft 10 is rotated through the gearing 1, 2, a cam 24 on the gear 2 simultaneously reciprocating a pump ram 89 working within the tube 7 to pump water through this tube, a flexible tube 83 and the hollow drill into the borehole. The shaft 10 rotates the actuating-cam 46 which engages a roller 144 on the striker to move the latter rearwardly against a spring 50; during the latter part of this movement, a U-bar 69 connected to the striker engages the drill support 68 to move this and so raise the drill from the rock, the drill then being rotated through a mutilated pinion 111 on the shaft 10 and the shrouded pinion 78. The two-step drop of the cam 46 gives a two-step return of the striker, the springs 51, 52 returning the drill to engage the rock during the first step and the striker advancing to strike the drill support during the second step. The feed is effected by an eccentric 35 on the shaft 10 oscillating a pawl which rotates a ratchet-wheel 20, this wheel rotating the feed-screw 11 through gearing 19, 18. The feed is controlled by a cam-surface on the U-bar 69 engaging a roller 74 carried by a pin 75 slidably keyed to the rock-shaft 12 and moving with the drill support; as the striker and U-bar reciprocate, the roller-carrying pin 75 is oscillated and acts through the rock-shaft 12 and an arm 13 to engage and disengage the pawl from the ratchet-wheel 20; when the rock is hard, the drill support 68 occupies a position nearer to slide 49 and the period of engagement of the pawl is consequently smaller and the feed is reduced.
Patent GB-1528296-A (GB)
Title: Microwave oven door window unit
IPC: F24C15/04
Filed: 1977-04-29
Abstract: 1528296 Microwave oven windows MILLS PRODUCTS Inc 29 April 1977 [29 April 1976] 18016/77 Heading H5H Microwave oven window units comprise two spaced parallel glass panes 12, 14 and a microwave shield 19 parallel to the panes mounted in a frame 18 with an outwardly extending mounting flange 42, the shield 19 being in electrical contact with the flange 42. Brackets 66 welded to door panel 58 support the window unit in window apertures of the panels. A single spacer 16 maintaining the panels 12, 14 spaced may be replaced by two such spacers (120, 122, Fig. 5, not shown) so that the microwave shield may be mounted midway between the glass panes.
Patent GB-166526-A (GB)
Title: Improvements in the manufacture of metal wheels
IPC: B21D53/26
Filed: 1921-07-02
Abstract: 166,526. Coumert, P. July 13, 1920, [Convention date]. Disc wheels.-A sheet-metal wheel is made from a rectangular blank, the length of which corresponds to the circumference of the rim or that of the hub, by first folding the blank into channel form and corrugating the side walls to produce spoke elements and the bending so that the bed of the channel forms the rim or hub member. Fig. 8 shows in section a wheel having a pair of corrugated discs and an integral rim with stiffening corrugations 5. Fig. 9 shows a modification in which the side discs are formed from separate, blanks with channelled edges bolted together at the mid-plane of the wheel. In all cases the tubular hubs fitted in the wheel centres have side plates shaped to engage the corrugations in the discs so as to prevent shearing of the connecting-bolts. Fig. 10 shows a form in which the rim is integral with one corrugated disc, a second disc 11 being riveted to the edge of the rim. In a modification, the second disc is omitted. Fig. 27 shows a further modification in which the blank is worked to produce two sets of spokes 19, 20 integral with the hub. Fig. 40 shows a modification of the wheel of Fig. 8 in which the side discs have struck-up webs 24 extending from the rim, intermediate swellings 23, and hub corrugations 29 which have driving engagement with the hub proper at 36, 37, 39. The construction shown in Fig. 48 is specially adapted for interchangeable twin-wheels, the corrugated centres interlocking for priving purposes as indicated.
Patent GB-196520-A (GB)
Title: Improvements relating to gas heated radiators
IPC: F24H3/00
Filed: 1922-06-30
Abstract: 196,520. Radiation, Ltd., and Ford, F. June 30, 1922. Radiators.-A filling- cap a for fitting into or over an aperture at the lower end of a gas-heated water-containing radiator is formed with inlet and outlet passages g, e respectively so disposed that water poured into the inlet g is delivered clear of the outlet e, while the maximum level of water within the radiator is determined by the upper edge of a lip d leading to the outlet e.
Patent GB-1278252-A (GB)
Title: Colortaion process
Inventor: MACHETA ZYGMUNT
IPC: C09B62/473
Filed: 1968-04-14
Abstract: 1278252 Dyeing with polymerizable dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 16 April 1969 [17 April 1968] 18118/68 Heading C3P [Also in Divisions C2 C4 and D1] Fibrous materials and polymeric films are dyed by treating with a solution of an azo dyestuff of the Formula I in which A is the residue of a diazo component of the benzene, naphthalene or stilbene series, E is the residue of a 5-pyrazolene, 5-aminopyrazole, or acylacetarylamide coupling component or of an ortho-coupled 2-naphthyamine, R 1 , R 2  and R 3  each independantly represents a hydrogen atom or a methyl group P which is directly attached to a carbon atom in the dyestuff is -O-, -NR 4 -, or -NR 4 NR 5 -, in which eases Q is a direct link or a linkage -CO-, -COO-, -CONH-, or -CSNH- or P is -CO- in which case Q is -O-, -S-, or -NR 4 -, in which R 4  and R 5  are each independantly hydrogen or optionally substituted lower C 1-4  alkyl, Y is an optionally substituted alkylene radical Z is a whole number, m is a whole number having a value at least 2, n is zero or 1, the treatment being carried out in conjunction with a polymerization initiator. Preferably P is -O- or -NR 4 -, Q is -CO-, and n is zero, R 2  and R 3  are H, R 1  is -CH 3  and m is 2 or 3. Substrates dyed include cotton, cellulose acetate, wool, silk, synthetic polyamides, polyurethanes, optionally modified polyacrylonitrile. The polymerization catalyst may be applied after the dyestuff or together with it after which the catalyst is activated. Polymerization catalysts include peroxides, peracids, peresters, percarbonates, azo compounds and redox systems. Reference has been directed by the Comptroller to Specification 1,046,751.
Patent GB-298522-A (GB)
Title: Improvements in rubber tiling
IPC: C08J5/12
Filed: 1927-07-08
Abstract: 298,522. Stevens, H. P. July 8, 1927. Composite tiles consist of a layer of plywood to which is secured by vulcanization at a low temperature and in the presence of a powerful accelerator a layer of rubber. In an example, a sheet of unvulcanized rubber compound consisting of rubber 75 parts, tyre reclaim 50, sulphur 4, zinc oxide 20, clay 50, mineral rubber 10, and zinc diethyldithiocarbonate ¢ part, is placed on a sheet of three-ply wood in a press, the lower surface of the wood being protected from the heat by a layer of non-conducting material. Two tiles may be simultaneously vulcanized in a double press, the two pieces of wood being placed back to back so that they are each protected from the heat. The process may be completed in 15 minutes at a steam pressure of 45 lbs. per square inch without damage to the wood. The wood surface may be first treated with a binding agent such as a coating of rubber solution or latex which may contain vulcanizing ingredients.