baber/WOPTO huggingface dataset:
Patent GB-169890-A (GB)
Title: A gas cooking oven
IPC: F24C3/02
Filed: 1920-08-28
Abstract: 169,890. Taylor, G. Aug. 28, 1920. Gas cooking-stoves.-A gas cooking-oven comprises outer and inner casings a, b, the former of which may consist of double metal sheets with an asbestos lining m, whilst the latter is formed with an arched top c and a projecting portion b<1> on one side, at the bottom of which is the burner f. The hot gases after circulating round the oven pass at g into the space between the casings and finally leave through holes in the outer casing above the projection b<1>. The oven top forms a hot-plate and is provided with rings l.
Patent GB-634246-A (GB)
Title: Improved door lock with self-locking locking bolt
IPC: E05B55/00
Filed: 1947-09-10
Abstract: 634,246. Door latches. KORESKA, R. J., and AKTIESELSKABET RUKO. Sept. 10, 1947, No. 24891. Convention date, Sept. 11, 1946. [Class 44] A door latch comprises a casing 1, a spring shot bolt 2 and a rotatable cam member 11 adapted, when turned by an outside key or an inside knob, to engage projections 21 on the bolt plate to withdraw the bolt and in the centre position to prevent retraction of the bolt by co-operation with a shoulder 20. When the door is opened, an auxiliary spring-loaded bolt 5 is released so that a catch member 7 pivoted thereon contacts the casing edge and moves into a position to engage a shoulder 8 on the bolt 2 which is thereby retained in an intermediate shot position 21. A spring 17 is connected to draw together the ends of two levers 15, 16 adapted to engage between them a fixed pin 18 and a pin 19 carried on the cam member 11 which is thereby always returned to the centre position. When the bolt is retained in the intermediate position, the cam member 11 is prevented from returning to the centre position by the contact of the inclined side portions 13 with the shoulder 20. If the door is slammed the inward movement of the bolt displaces the cam member and the catch 7 is released by the inward movement of the auxiliary bolt as it engages the striking plate, allowing the bolt 2 to project to its full extent and the cam member to return to the central deadlocking position. Hooks 14 formed on the sides of the cam member are adapted to engage notches formed in the sides of the shoulder 20 to retain the bolt in the fully retracted position when it is forced back by finger pressure when the door is open.
Patent GB-534481-A (GB)
Title: Improvements in racks for neckties or other small articles
IPC: A47G25/74
Filed: 1939-08-30
Abstract: 534,481. Racks for neckties &c. PLATERS & STAMPERS, Ltd., and CRANDELL, P. A. Aug. 30, 1939, No. 24895. [Class 52 (v)] The centre bar 8 of the rack is mounted in a socket 4 on a wall member 1 by means of a stirrup part 6 which depends into the socket to hold the arm horizontal and may be raised to allow the arm to hinge and'drop to a vertical position. The arm is preferably formed of two lengths of wire and the socket part is notched at 12 to receive the inner ends. The cross bars 9 of the rack have ends bent upwards and rearwards to prevent articles from slipping off. The tongue may be formed on the wall plate and the socket on the centre bar, and a solid tongue may be employed. The rack may be of wood.
Patent GB-387270-A (GB)
Title: Strainer for milk and other liquids
IPC: A01J11/06
Filed: 1932-09-07
Abstract: 387,270. Filters. HANSEN, T., 74, Storegade, Jerne, KOHLER, E., 27, Storegade, Esbjerg, LAURIDSEN, H. P., 76, Storegade, Jerne, and CLEMENSEN, A., 98, Kongensgade, Esbjerg, both in Denmark. Sept. 7, 1932, No. 24906. [Class 46.] A strainer for milk or other liquids comprises two cylinders 1, 3 connected by an inclined annular plate 2 and supporting filter elements consisting of two cone-shaped platerings 4, 6, the lower one 4 extending to the wall of the cylinder], and the upper plate 6 being covered by a lid 7 carrying a perforated cylinder 8 open at the bottom and projecting into the cylinder 3. A stiffened wadding 5 is placed between the plates 4, 6 and is wider than the plate 6 so that the lid 7 rests on the wadding. The plate 4 has three rows of perforations, and the plate 6, two. Liquid passes through the outer perforations of the plate 4 into the space between the plates 2, 4, where coarse impurities collect. It then passes back through the plate 4, wadding 5, plate 6 and the perforated cylinder 8 down into the cylinder 3. The other impurities are deposited in the wadding 5.
Patent GB-887035-A (GB)
Title: Apparatus for making fibres from thermoplastic materials, particularly glass fibres
IPC: C03B37/04
Filed: 1960-07-18
Abstract: 887,035. Glass fibres. COMPAGNIE DE ST.- GOBAIN. July 18, 1960 [Aug. 7, 1959], No. 24922/60. Class 56. Thermoplastic material such as glass is projected in streams from rows of holes 3 in the the wall 2 of a hollow rotor 1 into a gaseous attenuating current confined between part of the wall 2 and an exterior wall 6. The walls 2 and 6 may converge downwardly to produce a tapered space between. In the form shown, the attenuating current emerges from a slot 5 in a combustion chamber 4. The wall 6 is cooled, The lower part of the wall 2 is heated by induction from a coil 9. An additional concentric blowing crown 7, with orifice 8, is provided. Specification 887,036 is referred to.
Patent GB-944345-A (GB)
Title: Development of electrostatic images
IPC: G03G9/00
Filed: 1960-07-18
Abstract: 944,345. Electrophotographic developing. KALLE A.G. July 18, 1960 [July 23,1959], No. 24970/60. Heading G2H. [Also in Division H1] A process for producing a developer element for use in developing electrostatic images, e.g. electrophotographic charge images, comprises charging a photoconductive coating on a conducting support, the coating containing 3 to 20% by weight of a wax reckoned on the weight of photoconductive material, completely discharging the coating or partially discharging it to a uniform extent and then applying an electrically charged toner to the coating. Preferably the photoconductive coating comprises one or more known organic photoconductors such as oxadiazoles, triazoles, oxazoles, imidazolones, pyrazolones, pyrazolines tetrahydroimidazole, benzanthrene, chrysene, stilbene derivatives,triphenyl derivatives of fluorene, thiophene or pyrrole, triphenylamine and its alkyl derivatives, and polymers such as polyvinyl carbazole, polyindene, polyvinyl naphthalene or quinoline, polyacenaphthene; and in addition to the wax which may be animal, vegetable, mineral or synthetic, the layer may also contain natural or synthetic resins such as colophony shellac, vinyl polymers, polyolefines, polyamides, polyesters, chlorinated rubber or condensation resins from formaldehyde and phenol, urea, melamine, or ketones. As an alternative to inclusion in the coating the wax may be applied as a thin film e.g. 0. 5 to 20Á, over the photoconductive layer. The conductive support may be any material having a resistivity not greater than 10<SP>12</SP> ohm-cms and may thus be of metal, paper, regenerated cellulose, polyvinyl alcohol, polyamides, polyurethanes or insulating synthetic plastic materials coated with or containing electrically conductive materials. The developer element may be used to develop an electrostatic image by simply pressing the element on to the image. The used element may be regenerated by blowing or brushing off the residual toner and again charging, exposing, and dusting with toner.
Patent GB-389105-A (GB)
Title: Improvements in and relating to devices for locking bolts, studs, set pins and nuts
IPC: F16B39/24
Filed: 1931-09-08
Abstract: 389,105. Locking washers. S U T - CLIFFE, G. E. and SUTCLIFFE, E. C., 113, West Side, Clapham Common, London. Sept. 8, 1931, No. 25138. [Class 89 (i).] Locking-devices for bolts, studs, and the like comprise a combination of a washer with hardened projections on both faces adapted to sink into the soft surfaces of opposing materials to full depth of the ribs or projections and a smooth soft washer adapted to be clamped or cupped against the side of the nut or bolt head. The hardened washer a is formed with projections b on both its faces of approximately symmetrical slope on opposite sides and with projections on each side opposite each other. These projections do not exceed À0005 of an inch in depth. The soft washer k may have a lip adapted to be turned up against the nut or the washer p be of dished form v the upstanding part of which may be clamped against the nut or bolt head by means of a clamp tool w. This tool has bevelled edges 20 with faces and slots of equal number to faces of the nut and when forced over the upstanding collar v crimps it into position. When assembled the hardened washer a is in engagement with the work and the soft washer g, the lip t being turned up against the nut n when the latter has been screwed down on the bolt i. Specification 359,961 is referred to.
Patent GB-311434-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60P1/24
Filed: 1928-07-23
Abstract: 311,434. Boyde, W. T. July 23, 1928. Tipping wagons.-In vehicles the body which may be tipped is mounted on the chassis by a pivot bolt 6 provided with washers 9, 15, and nuts 8. The bolt passes through concentric sleeves 10, 12 secured respectively to the chassis and body, balls or rollers being interposed between the sleeves.
Patent GB-684282-A (GB)
Title: Improvements in or relating to high frequency electric heating apparatus
IPC: H05B6/36
Filed: 1950-10-16
Abstract: 684,282. Induction heating. GENERAL ELECTRIC CO., Ltd., and SMITH, R. Sept. 7, 1951 [Oct. 16, 1950], No. 25181/50. Class 39(iii) A high frequency transformer secondary winding feeds a number of series connected workloops, and means are provided for short-circuiting one or more workloops while supplying high frequency current to the others. A secondary winding 10 is split axially and supplies workloops 11, 12 through connectors 13, and short-circuiting bars 15, 16 are connected across the splits alternately. The bars are connected at both ends to slider members 20 in guides 21, 22, and are moved in one direction or the other by an arm 25. The arm is secured to a spindle 26 which is connected at both ends to arms 27, 28 connected to compression springs 29, 30. The springs are attached to pivots on the slider members. The workloops may be disposed concentrically, and may be of different sizes. Specification 680,140 is referred to. Specification 672,017 also is referred to.
Patent GB-721508-A (GB)
Title: Improvements in or relating to portable internal combustion percussive tools
IPC: E21B1/34
Filed: 1952-10-08
Abstract: 721,508. Direct-acting two-stroke engines ; driving-gear ; starting. WAMPACH, A., and SOC. POUR L'EXPLOITATION DE MATERIEL DE TRAVAUX PUBLICS SOC. A.R.L. Oct. 8, 1952 [Oct. 12, 1951], No. 25188/52. Classes 7 (2) and 7 (5). [Also in Group XXIII] The working piston 1, Fig. 1, of a portable internal combustion percussive tool is returned by a tension spring 2 housed in a steel or other tube 3 disposed above the piston and secured thereto as by a pin 7 which also engages a cylinder slot 8 to prevent piston rotation. The tube 3 passes through a cylinder head stuffing gland 6 and may be reciprocated by a tool handle bar 10 for engine starting by operating pivoted catches 13 to release the bar from the tool body and to cause sliding catches 12 to engage the tube 3. The upper end of the spring 2 is secured to a bridge piece 14 as shown or via a bolt and nut connection adjustable to vary the spring tension. In a percussive drill, the drilling member 16 is partially rotated at each piston power stroke by a pawl 21, Fig. 2, engaging a ratchet wheel 20 splined to a sleeve 15 carrying the member 16, the pawl 21 being pivoted on a piston 22 intermittently moved as far as an adjustable stop 34 against a spring 24 by the combustion pressure of gases led off from the combustion chamber 4 through suitable ducting 23 from which the pressure also acts via a duct 29 to move a spring-loaded adjustable-stroke valve piston 27, and momentarily open a duct 26, Fig. 1, supplying a compressed air blast via ducts 31, 17 to the tip of the member 16.
Patent GB-968106-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: KNOTT RALPH DAVID
IPC: H01L21/304
Filed: 1961-07-12
Abstract: 968,106. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. July 4, 1962 [July 12, 1961], No. 25243/61. Drawings to Specification. Heading H1K. A semi-conductor device incorporates a wafer containing a plane PN junction parallel to the main faces of the wafer and formed between a first layer of one conductivity type and a second layer of the opposite conductivity type, the net significant impurity concentration in said first layer being greater than that in said second layer: there is present on the surface of the wafer a net electrostatic charge which is of the same polarity as the majority carriers in said first layer, and the surface of the wafer is bevelled at least in the region where the PN junction meets the surface in such a manner that the surface of the second layer contiguous with the junction makes an included angle of between 170 degrees and 180 degrees with the plane of the junction. It is stated that the surface charge on germanium devices is apparently dependent on the nature of the surrounding atmosphere, electronegative gases such as oxygen or ozone producing a negative surface charge while water vapour produces a positive arc. Thus the desired surface charge may be obtained by encapsulating the device in a suitable atmosphere. The charge on silicon devices is much less sensitive to the surrounding atmosphere and is normally positive. A silicon wafer for a silicon controlled rectifier, Fig. 5 (not shown), is also described in Specification 968,353, and may be produced by a lapping method also described in Specification 968,105. An etching method for producing the bevel is described with reference to the manufacture of a diode rectifier. A silicon wafer of N- type conductivity is provided with an allround diffused surface layer of gallium doped P-type material. One face is lapped so that the wafer contains only a single PN junction. A disc is cut from the slice and a circle of wax deposited on its P-type face leaving an annular outer region unmasked. The wafer is immersed for 5 to 9 minutes in a " slow " etch containing specified amounts of nitric, hydrofluoric, acetic, and phosphoric acids. This etch preferentially attacks the low resistivity P-type material and forms a shoulder such that the newly-formed surface subtends an angle of about 5 degrees with the plane of the junction. Ohmic contacts are applied in a conventional manner and the diode hermetically sealed in an envelope.
Patent GB-250111-A (GB)
Title: Improvements in or relating to burglary or fire alarms
IPC: G08B23/00
Filed: 1925-10-09
Abstract: 250,111. Barten, P., Woltman, J., and Kok, J. P. G. Oct. 9, 1925. Fire, police, and like alarm systems and apparatus.-Relates to burglary or fire alarms of the kind comprising an electromagnet 14 which is energized when contacts 17, 18 are closed by fire or by an intruder, and attracts an armature 13 connected to a clockwork mechanism which, when released, operates a signalling device such as the telephone spring device 24. The clockwork mechanism comprises a spring drum 2 and' a gear drive 3, the gear wheel 4 of which drives a gear wheel 5 carrying a pawl 6. The latter engages a pinion 7 on a pulley 8 normally held' to the left by a weight 9. The pulley 8 carries an arm 10 connected at one end bv a cable 11 to a rod 12 on the armature 13 and at the other end to a spring arm 20 which normally tilts an anchor member 19 about its pivot to a position to lock the clockwork mechanism. Driven by the gear drive 3 is a cam disc 22 which cooperates with a roller 23 to operate the signalling device 24. When the electromagnet 14 is energized the rod 12 is moved downwardly and the pulley 8 is rotated in a clockwise direction so that the arm 20 disengages the anchor 19 to release the clockwork mechanism, which then operates the signal. The gear-wheel 5 rotates in an anticlockwise direction so that the pinion 7 and pawl 6 act as a free-wheel device. The actuating mechanism may include a speed controller, and the cams of the disc 22 may cooperate directly with the contacts of the telephone spring 24, and may be so arranged as to transmit a predetermined signal.
Patent GB-408870-A (GB)
Title: Improvements in stuffing box packing
IPC: F16J15/20
Filed: 1933-09-12
Abstract: 408,870. Stuffing - box packing. BRIER, J. H., 102, Princes Road, Dartford, Kent. Sept. 12, 1933, No. 25266. [Class 122 (v).] A packing-ring A, of metal or alloy for use in stuffing-boxes is of dished or conical form with the edges C, D, E, F, shaped as in Fig. 1. A number of such rings are adapted for use as in Fig. 2, in conjunction with a gland nut of conical form, the shaped edges leaving grooves H in which oil may collect.
Patent GB-993342-A (GB)
Title: A process for improving the properties of polycarbonate films
IPC: B29C59/00
Filed: 1963-06-25
Abstract: 993,342. Polycarbonate films. FARBENFABRIKEN BAYER A.G. June 25, 1963 [June 25, 1962], No. 25281/63. Drawings to Specification. Heading B5B. At least partially crystalline films of a polycarbonate of 2,2<SP>1</SP>-di-(4-hydroxy phenyl) propane, which have been stretched in only one direction to a draw ratio of from 1: 2 to 1: 8 are shrunk, while free from tension, by at least 3% in the longitudinal direction either by heating to temperatures between the second order transition temperature and the melting temperature or by being treated with swelling agents and/or solvents in liquid or vapour form. The films should have a crystallinity of at least 10% and advantageously of 30-40%. Preferably the films are treated for sufficient time for them to have shrunk by between 10% and 30%. For the heat treatment, films may be heated to temperatures more than 20‹ C. above the second order transition temperature and more than 10‹ C. below the melting point, temperatures of 150‹ to 210‹ C. being preferred. Heating can be effected by air, inert gases, inert liquids, or by irradiation. Thus a film may be heat-treated while freely suspended in air or while being passed through a heating zone between supply rollers and withdrawal rollers. Specified solvents include methylene and ethylene chlorides, and specified swelling agents include acetone, aromatic hydrocarbons, ethers e.g. dibutyl ether, esters, ketones, and glycol. Mixtures of swelling agents and solvents may also be used. Films may be placed in liquid, or drawn through baths of liquid, or through vapour-filled chambers, if desired at elevated temperatures. Preferably solvent or swelling agent treatments are used at temperatures below the boiling point of said solvents or swelling agents. Treatment increases the edge tearing strength and the breaking elongation of the films, and reduces the dielectric loss angle, tensile strength being substantially unaffected.
Patent GB-518624-A (GB)
Title: Manufacture of pancreas hormone preparations
IPC: C07K14/625
Filed: 1938-08-29
Abstract: 518,624. Insulin preparations. GROVES, W. W. (I.G. Farbenindustrie Akt.-Ges.). Aug. 29, 1938, No. 25285. [Class 81 (i)] [Also in Group IV] The blood-sugar lowering hormone of the pancreas is reacted with a polypeptide or a decarboxylated derivative thereof and the product precipitated by a buffer solution to give insulin preparations. Thus, triarginylarginine is dissolved in a solution of pancreas hormone and treated with a decinormal solution of disodium hydrogen phosphate containing a small amount of zinc sulphate to give the tri-arginyl-arginine-zinc pancreas hormone compound. In a similar manner, the zinc pancreas compounds of N-#-phenylethyl-glycyldecarboxy-leucine, N-#-phenylethyl-glycyl-decarboxy-phenylalanine, N-(diethylaminethyl)- glycyl-decarboxy-leucine, N-diethyl-glycyldecarboxy-leucine, N-benzyl-glycyl-decarboxyleucine, decarboxy-phenyl-alanyl-acetyl-guanidine, and N-dibutyl-valyl-decarboxy-phenylalanine are prepared. Specifications 500,654 and 505,203 are referred to.
Patent GB-904162-A (GB)
Title: A new or improved tedding device
IPC: A01D78/10
Filed: 1958-08-07
Abstract: 904,162. Haymaking machines. PURSER, A. H. Aug. 7, 1959 [Aug. 7, 1958], No- 25297/58. Class 6(3). A method of tedding cut hay comprises sucking the crop up from the ground, stirring it, and spreading it laterally while it is airborne. A machine for performing the method consists of a horizontal disc 32, approximately 3 feet in diameter, arranged in a frame 10 mounted at the front on tractor hitchlinks 20 and rearwardly on a castor 13. The disc has cup-shaped projections 34 on its undersurface which stir the lifted crop and eject it laterally ; the cups may be replaced by blunt tines. The disc is of plywood faced on both sides with aluminium sheet, and is carried by rubber bushes 31 bolted to a smaller disc 28 at the bottom end of a vertical shaft 24 driven by level gearing 45 from the tractor. A cylindrical member 27 on the bottom of the shaft 24 has a vertical wall 39 which abuts a central aperture in the disc 32. In a modification the disc 32 has vanes to produce the suction and a further, foraminous, disc spaced below it to carry the stirring members. A skid may replace the castor wheel 13.
Patent GB-489250-A (GB)
Title: Improvements in or relating to vibratory mechanism
IPC: B06B1/16
Filed: 1937-09-18
Abstract: 489,250. Vibratory mechanism. AKTIEBOLAGET VIBRO-BETONG. Sept. 18, 1937, No. 25349. Convention date, Oct. 1, 1936. [Class 80. (iv)] In devices of the kind in which a weighted body rolls on a surface of revolution formed on a member to be vibrated, the former has the form of a conical pendulum 1 and is adapted to be actuated by a flexible shaft 7. The surface of revolution may be either external, Fig. 4, or internal, Fig. 5, to the weight 3. The casing 4 may be attached to an appliance to be vibrated. A device in which the relative frequencies of vibration of the pendulum and casing may be varied has conical surfaces 3a, 4a, Fig. 11 ; or the pendulum may be shaped to engage a V-shaped groove in the casing. The invention is specially intended for use in internal high-frequency vibrators for setting concrete.
Patent GB-1309926-A (GB)
Title: Hydraulic units
IPC: F04C2/344
Filed: 1970-05-27
Abstract: 1309926 Valves ROBERT BOSCH GmbH 27 May 1970 [28 May 1969] 25417/70 Heading F2V [Also in Division F1] A control and relief spool valve is exposed at one end to the fluid pressure output of a pump, the other end of the spool co-operating with a pair of springs arranged to act progressively on the spool. At very low output pressures, one spring holds a cap on the said one end of the spool against a main discharge orifice, and a pair of annular grooves and a longitudinal groove in the surface of the spool provide a by-pass for the fluid. Increased output pressure opens the main discharge orifice and closes the by-pass. Excess pressure moves the spool against the action of the second spring to establish direct communication with the by-pass outlet.