baber/WOPTO huggingface dataset:
Patent GB-539306-A (GB)
Abstract: 539,306. Calculating apparatus. UNDERWOOD ELLIOTT FISHER CO. March 15, 1940, No. 4894. Convention date, June 22, 1939. [Class 106 (i)] The auxiliary totalizers A, B, C, D of an accounting machine as described in Specification 401,904 are engageable with either of a pair of actuating racks 28, 29 so that subtraction as well as addition may be effected by depression of the appropriate keys. The wheels 26 are mounted in members 30, Fig. 4, slidable across fixed bars 31, by pin and slot connection 85 with arms on shafts 84 rocked by links 76 in the manner described in the prior Specification. Depression of the subtraction key after a register has been selected draws forwards an upstanding arm 131, Fig. 5, and the upper edge 133, Fig. 15, of this arm engages a transversely slidable bar 110 to displace a lug 112 on the bar from a slot in the adding cam lever 114 to a slot in the subtracting cam lever 135. At the end of the operation the sliding bar is restored by its spring 111. Detent bars 32, Fig. 4, for locking the wheels when in the disengaged position are mounted on pivoted plates 33 having pins 35 engaged in cam slots 37 in plates 38 so as to release the wheels as they are moved into engagement with the racks. The transfer mechanism includes dog teeth 55, 57 on the wheels adapted to lift lugs 54, 56, on slides 46, 45 located on opposite faces of each rack and connected together by pin shafts 52. As a slide 45 is lifted a shoulder 43 is moved clear of a flange 42 on a pivoted lever 49 the upper arm of which rises to allow the rack to move one tooth. The parts are reset by a bar 58. Totals and subtotals are taken in a manner similar to that described in the prior Specification.
Patent GB-1280718-A (GB)
Title: Device for locking an indexable carbide insert in a seat in a tool body
IPC: F16B2/14
Filed: 1969-11-05
Abstract: 1280718 Milling cutters FAGERSTA BRUKS AB 5 Nov 1969 [22 Nov 1968] 54179/69 Heading B3K A milling cutter has an indexable cutting insert 15 arranged to be locked in position by tightening a screw 20 having a head 21, a tapering portion 24 of which bears on the insert while a cylindrical portion 22 bears on a reaction surface 25 in the body 10 of the cutter.
Patent GB-1145929-A (GB)
Title: Reference voltage regulation e.g. in a radar receiver
IPC: G01S7/292
Filed: 1967-11-29
Abstract: 1,145,929. Pulse radar. TELEFONAKTIEBOLAGET L. M. ERICSSON. 29 Nov., 1967 [30 Nov., 1966], No. 54421/67. Heading H4D. In, for example, a pulse radar the receiver output U in  is compared with a voltage U 1  to give a pulse train U 2  which is fed to an AND gate 2 together with a clock pulse train, Fig. 2d (corresponding to ranging intervals) to afford the useful output U 3 ; voltage U 1  is derived by counting the number of pulses in a predetermined part of each radar pulse repetition period, U 4 , comparing the count with a pre. determined number N to provide a voltage U 5  and integrating voltage U 5  to produce voltage U 1 . The absolute value of the negative portion of voltage U 5 , corresponding to a count in the previous radar pulse repetition period less than N, may be greater than the positive portion. Nearby targets, e.g. ground echoes, do not affect the reference voltage, and the probability of detecting faint echoes is stated to be increased as compared with known arrangements.
Patent GB-1284836-A (GB)
Title: Educational device
Inventor: MORCHAND CHARLES A
IPC: G09B5/02
Filed: 1970-11-17
Abstract: 1284836 TV teaching machines DATAPLEX SYSTEMS Inc 17 Nov 1970 54614/70 Heading G5G Television video signals representing a primary and plural secondary visual images are transmitted together with a synchronizing signal to a receiver wherein selectively operable means are provided to control the transmission to controllable display means of control signals generated in the receiver in response to the synchronizing signal so as to selectively display said secondary images. As shown (Fig. 3), the frame sync. pulse signal in a television receiver is fed to a 4X frequency multiplier 32 coupled to a four stage ring counter 34 whereby the frame scan time is divided into four equal segments (one primary and 3 secondary). During each time segment a signal exists on one or other of the output leads 36, 38, 40 or 42 which are connected by way of AND-gates 44, 48, 50, 52 to an OR-gate 54 the output of which controls the bias on the control grid of the cathode-ray tube and thus controls whether a picture is displayed or not. Second respective inputs to the AND-gates are connected to switches 22, 24, 26 and 28 on a student control panel. In operation a switch 22 is normally closed to uncover the first or primary segment of the picture which includes a question and three possible answers. By selecting switches 24, 26 or 28 to represent his answer the student can uncover selected secondary segments to ascertain whether his answer was correct or not. Digital information to be displayed and derived from a keyboard, computer or printing telegraph machine are converted by known digital-tovideo signal conversion means. Alternatively a programmed slide projector and television camera could be used. Characters on the screen may be accentuated by flashing, underlining or colours and more or less segments may be provided. The signals may be transmitted to a plurality of receivers. If, say, one of the answers is too long to fit into one segment, then two complete frames may be transmitted a suitable interval apart. The switch 22 may be under the control of an instructor. As well as words, drawings can be displayed. A control signal detector 72 is provided whereby a whole frame question can be displayed followed by selection by the student of one out of four possible answers.
Patent GB-1329112-A (GB)
Title: Epoxy resin adhesive compositions
IPC: C08G18/69
Filed: 1970-11-17
Abstract: 1329112 Epoxy resins modified by polyurethanes or polythiourethanes DOW CHEMICAL CO 17 Nov 1970 [17 Nov 1969] 54692/70 Headings C3B C3P and C3R A curable resin composition comprises: (I) a polyglycidyl ether of a polyhydric phenol or of an alcohol, and (II) 5-50 parts by wt. per 100 parts of I of a modifier, compatible with I, having reactive terminal groups which is obtained from 2 moles of an organic diisocyanate (optionally in admixture with an organic monoisocyanate), 1 mole of a polymer, M.W. 500-5000, containing reactive hydrogen atoms and containing in its chain flexibilizing groups -O-, -S-, -CO-, -OCONH-, -CONH-, -NHCONH-, -SCONH-, -OSiO- or -C = C-C- and 1 mole of a material X-R-X<SP>1</SP> or in which each X and X<SP>1</SP> is independently SH, OH, NH 2  or COOH, R is an aliphatic or aromatic group; X<SP>11</SP> and X<SP>111</SP> each represent an organic radical containing an epoxy or thioepoxy group and R<SP>1</SP> is a hydrocarbon radical. Typical examples of II are prepared from: (1) propylene oxide-propylene glycol polyether polyol (M.W. 2000), toluene diisocyanate and 4-mercaptobutanol; (2) a polyester of adipic acid and tripropylene glycol, toluene diisocyanate and 4-mercaptobutanol; and (3) a hydroxyl terminated butadiene - acrylonitrile polymer (85 : 15), toluene diisocyanate, phenyl isocyanate and 4-mercaptobutanol.
Patent GB-1154868-A (GB)
Title: A method of Bonding a Discrete Body of Semiconductor Material to a supporting Substrate particularly for Electronic Devices
IPC: H01L21/762
Filed: 1966-12-07
Abstract: 1,154,868. Semi-conductor structures. INTERNATIONAL BUSINESS MACHINES CORP. 7 Dec., 1966 [6 Jan., 1966], No. 54787/66. Heading H1K. [Also in Division C7] A body is bonded to a substrate, either or both of which are of a semi-conductor material, by placing the body in a recess in the substrate and filling the space between the body and the substrate by epitaxially growing a bonding material on the body or the substrate. As shown in Fig. 2B, chips 21, 21<SP>1</SP> of gallium arsenide and germanium, respectively are placed in recesses 19 in a substrate of e.g. gallium arsenide, Si, Ge, sapphire, calcium fluoride, alumina, beryllia, aluminium nitride or glass, and germanium is deposited by decomposition of e.g. germanium iodide to form the bonding material 23. The surface may be lapped or etched (Figs. 2C, 2D, not shown). In a modification (Fig. 3, not shown) the substrate may be conductive, e.g. Mo, W or Ni, or semi-conductive e.g. Si, Ge or gallium arsenide, and an insulating layer of e.g. alumina or silicon dioxide is first formed on the substrate. In a further modification, Fig. 4C, the substrate 7<SP>11</SP> which may be of sapphire has through holes in which Si chips 21 are bonded by depositing Si. A layer 37 of silicon dioxide is applied subsequently by decomposing tetraethylorthosilicate, windows are cut in this layer, and thin film connections 41 are formed. In the final modification (Fig. 5, not shown) chips of N-type gallium arsenide are bonded in through holes in a substrate of e.g. Mo by depositing zinc doped gallium arsenide to form an electroluminescent diode matrix.
Patent GB-1198299-A (GB)
Title: Electrostatic Generator
Inventor: BRIGHT ALFRED WILLIAM
IPC: H02N3/00
Filed: 1967-12-04
Abstract: 1,198,299. Electrostatic generators. NATIONAL RESEARCH DEVELOPMENT CORP. 29 Nov., 1968 [4. Dec., 1967], No. 55101/67. Heading H2A. A movable charge carrier in an electrostatic generator is immersed in a dielectric liquid and purifying means are provided for removing ions from the liquid. In the embodiment shown in Fig. 1, at least one charge carrying disc 10 of glass, P.T.F.E. or barium titanate driven by a motor M is enclosed in an insulating housing 11 and has radially extending knife-edge charge supplying and collecting electrodes 12a, 13a, respectively, located adjacent the periphery thereof at angularly spaced positions. Polarizing electrodes 31 are located opposite the electrodes 12a, 13a on the other side of the disc. The dielectric liquid, which may be nitrobenzene, is circulated through the housing by a pump, the liquid circuit including an electrodialysis cell, for example as described in Specification 1,172,884 for deionizing the liquid. To reduce unwanted charge injection into the liquid and provide alternative or additional purifying means, the electrodes 31 may be formed of superimposed layers of glass sinter or porous plastics material. The electrodes may also contain a deionizing medium for example as shown at 49 in Fig. 4. The medium is enclosed in a housing 45 of inert plastics material between an electrode plate and a cover 48 of sintered glass or perforated or porous plastics material. The electrodes 12a, 13a may comprise a plurality of knife-edges extending tangentially of the disc, Fig. 5 (not shown) or they may be arcuate. Fig. 7 shows a further construction of the disc, 50, in which an axially extending flange 52 is used as the charge-transferring surface, the charge supplying and collecting electrodes 56, and the polarizing electrodes 31 being located on opposite sides thereof. Alternatively the portion 64 of the disc may be used as the charge transferring surface. The charge-supplying electrode may comprise a semi-conductor element (68), Fig. 8 (not shown), which may be a tunnel diode or a silicon carbon diode in which the charge is transferred by microdischarges.
Patent GB-1273245-A (GB)
Title: Device for the welding of plastics materials
Inventor: FORMA ANDRE
IPC: B29C65/00
Filed: 1969-11-12
Abstract: 1,273,245. Seaming non-metallic sheet material. A. FORMA. 12 Nov., 1969 [13 Nov., 1968], No. 55344/69. Heading B5K. A device for welding and cutting sheets of plastics material, e.g. polyvinyl chloride or polyethylene, comprises a heated bar 1, the active portion of which has two faces 2 which, in crosssection, form angles α of 15-35 degrees with a plane perpendicular to the axis of the bar between the active portion and the end opposite thereto and terminate, at their common apex, in a substantially triangular cross-section rib 3, the apex angle # of which is 80-110 degrees. Preferably, each angle α is 25-30 degrees, ideally 26-27 degrees, and the angle # is 85- 105 degrees, ideally 90Œ5 degrees. The width and height of the rib 3 are between 0.5 and 1.5 mm. and, preferably, the width is substantially double the height. The bar 1 is heated by electrical resistances and a strip of glass cloth impregnated or coated with polytetrafluoroethylene is interposed between the rib 3 and the sheets to be welded. The top of the holder for the bar 1 may be provided with a rubber lining (8), Fig. 3 (not shown), in the region where control elements are fitted.
Patent GB-1281192-A (GB)
Title: Improvements in or relating to bearer members for use in receiving stretchers
Inventor: STOLLENWERK HANS
IPC: A61G1/06
Filed: 1969-11-12
Abstract: 1281192 Ambulances H STOLLENWERK 12 Nov 1969 [13 Nov 1968] 55473/69 Heading B7B A vehicle is provided with two cantilever support spars 1 each of which has a fixed abutment 9 for the stretcher and a movable one 9 operated by the handle 8 against the tension of the spring 7. The tube 4 on which the movable abutment is carried is provided with a slot 13 engaged by the screw 14 to limit the telescoping movement of the abutment.
Patent GB-557145-A (GB)
Abstract: 557,145. Aminothiazole derivatives. SOC. OF CHEMICAL INDUSTRY IN BASLE. June 12, 1942, No. 8065. Convention date, June 14, 1941. [Class 2 (iii)] Cyclic aminothiazole derivatives, which are of therapeutic interest, acting on the blood presure, are prepared by causing thiourea or a derivative thereof or a compound capable of conversion thereto, e.g., ammonium thiocynate, monomethylthiourea, dimethylthioureas, ethyl-, propyl-, allyl-, diallyl-, ethylene-, trimethylene-, benzyl-, acetyl-, or benzoylthiourea, to react with a reactive ester of a substituted or unsubstituted cyclic ketol in which the ring carrying the keto group contains not more than 5 carbon atoms. Compounds mentioned are 2-chlorocyclopentanone, 2- bromocyclopentanone, p-toluene sulphonic acid ester of α-bydroxycyclopentanone, 2 - chloro - 1 - methyl - cyclopentanone - (3), 2 - chloro - 3:3 - methyl - ethyl - cyclopentanone, 2 - bromo-hydrindone-(1), and α-bromocyclobutanone. An example is given of a compound containing a cyclopentene ring having two carbon atoms in common with the thiazole ring, prepared from α-chlorocyclopentanone and thiourea.
Patent GB-559609-A (GB)
Abstract: 559,609. Trailer vehicles. RUSSELL, A. A'B. Oct. 28, 1942, No. 15136. [Class 108 (i)] A wheeled vehicle or carrier, with a forwardlyextending U- or V-shaped element 18 and adapted to be pushed or pulled by hand or to be coupled to a bicycle, has a flat floor and an inclined front endwall 7 together with vertical side-walls 6, the body being of angle-iron and secured to a frame-work 12 which is shorter than the body but wider so as to enable cycle wheels to be separately journalled between the sides of the body and of the frame-work 12. The V-shaped element 18 is connected to the saddle-pin 23, as shown in plan Fig. 4, by a chain 22, secured by a pivot 21 and a screw 24 with wing nut 26 to a bar 20 universally jointed to a member 33 having a spigot 35 mounted in a bearing carried by the element 18. A hinged stand 10 may be folded down to support the carrier.
Patent GB-1175330-A (GB)
Title: Electric Circuit Device for the Intermittent Operation of a Windscreen Wiper.
IPC: H01H61/06
Filed: 1968-11-27
Abstract: 1,175,330. Windscreen wipers. SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAVE RAU G.m.b.H. 27 Nov., 1968 [30 Nov., 1967], No. 56200/68. Heading A4F. [Also in Division H2] Closure of switch 19 energises relay 20 whereby contact 25 is closed and contact 24 is opened to switch on a shuntwound motor 12 driving a windscreen wiper. A cam 15 is rotated out of its parking position to close contacts 14, 16, and so connect the motor directly to a battery. At the same time, a heating coil 29 is energised through resistor 28 to open bimetallic switch 22 which releases the relay. When the motor moves into its parking position, the cam 15 separates the contacts 14, 16, to break the motor circuit and to discontinue heating of the coil 29. The stationary period of the motor depends on the cooling time of the strip 21 and varies in accordance with the value of the resistor 28. The switch 19 forms a structural unit with the resistor 28 which may have a logarithmic characteristic, so that, when the switch is closed, the complete resistance is in series with the coil 29 to prevent operation of the switch 22. Only when the resistor is adjusted through a predetermined angle, is the resistance reduced sufficiently for operation of the bimetallic switch. In another arrangement the resistor 28 is replaced by one having a linear characteristic associated with two successive contacts, one for starting the motor and the other for energising the coil 29, Fig. 2 (not shown). A metal sleeve is arranged around the bimetal 21 to act as a heat store for delaying opening of the contact 22. This allows the capacitator 26 to be omitted. An on-off switch enables the motor to be adapted for permanent or intermittent operation, Fig. 3 (not shown).
Patent GB-1397490-A (GB)
Title: Undershirts or similar sleeveless garments
IPC: A41B9/06
Filed: 1973-12-11
Abstract: 1397490 Underskirt W W ARTZT 11 Dec 1973 [25 Oct 1973] 57448/73 Heading A3V Sleeveless undershirt blanks 16 are cut from a tubular knitted fabric 10, oval openings 20, 22 are cut for arm and neck openings respectively, and the blank is then folded across the shoulder straps 28 and the edges are seamed at 32 to form the garment. The edges of the arm and neck openings and the waist are turned back and stitched with longitudinally stretchable stitching. The fabric preferably comprises a base of stretch nylon or other synthetic yarn, with a random arrangement of loops of cotton or synthetic yarns to give it a shaggy appearance.
Patent GB-1385960-A (GB)
Title: Root crop harvester
IPC: A01D17/00
Filed: 1972-12-14
Abstract: 1385960 Root crop harvester DEERE & CO 14 Dec 1972 [17 Dec 1971] 57844/72 Heading A1F A root crop harvester uses an auger conveyor to elevate roots from a lower conveyor to an upper unloading conveyor. The roots are dug by pairs of lifter wheels 50 and transferred to potato chain 70 by powered paddles 52. Horizontal auger conveyor 84, 86 transfers the roots to the foot of cylindrical housing 72 where a vertical auger conveyor raises the roots to a level where they are unloaded by conveyor belt 108. The trough below the horizontal auger conveyor is formed by a number of grab rolls which provide cleaning of the roots. The cylindrical housing 72 is perforated to provide further cleaning. The paddles 52, the potato-chain drive shaft 64, the horizontal and vertical auger conveyors and the grab rolls 78, are rotated by the drive shaft 124 connected to the power take-off of the towing tractor. The tractor also provides fluid pressure to power the hydraulic motor 110 which drives the unloading conveyor 108. In an embodiment, the grab rolls 78 are replaced by part of a cylinder made of perforated sheet metal situated below and in close proximity to the flight of the horizontal auger conveyor 86. For Figures see next page
Patent GB-1282663-A (GB)
Title: Bicyclo[3,1,0]hexan-3-one derivatives and the manufacture thereof
IPC: C12P31/00
Filed: 1970-03-10
Abstract: 1282663 Bicyclo[3,1,0]hexan-3-one derivatives UPJOHN CO 10 March 1970 [14 March 1969] 58027/71 Divided out of 1282661 Heading C2C The invention comprises novel bicyclo[3,1,0]- hexan-3-one derivatives of the Formula I wherein R 1  is H, C 1-8  alkyl, C 3-10  cycloalkyl, phenyl, phenyl substituted with 1 to 3 chlorine atoms or C 1-4  alkyl-, or ethyl substituted in the #-position with 3 chlorine, 2 or 3 bromine or 1, 2, or 3 iodine atoms; R 2  is H or C 1-10  alkyl substituted with 0 to 3 fluorine atoms; R 3  and R 4  are H or C 1-4  alkyl; A is C 1-10  alkylene substituted with 0 to 2 fluorine atoms, and with 1 to 5 carbon atoms between COOR 1  and V; V is R 10  arid R 11  are H or C 1-5  alkyl sulphonyl, with the provisos that when R 10  is alkyl sulphonyl, R 11  is also alkyl sulphonyl, and when R 1  is H, R 10  and R 11  are both H, and # indicates attachment of the CH 2 -V-A-COOR 1  radical to the cyclopentane ring in alpha or beta configuration, and the C(OR 10 )R 2 -C(OR 11 )R 2 R 3  radical to the cyclopropane ring in oxo or endo configuration, and their preparation. Compounds of the above formula in which R 1  is other than H and R 10  and R 11  are both H are prepared by esterifying the corresponding free acids, and those in which R 1 , R 10  and R 11  are all H by reacting compounds of the formula wherein R 12  and R 13  are C 1-4  alkyl, with acids with pK's less than 5. Compounds in which R 10  and R 11  are both C 1-5  alkylsulphonyl and R 1  is other than H are obtained by reacting the corresponding compounds of Formula I above in which either R 10  and R 11  are both H or R 10  is H and R 11  is C 1-5  allylsulphonyl with the appropriate alkylsulphonyl halides or alkanesulphonic anhydrides, and those in which R 10  is H and R is C 1-5  alkyl sulphonyl by reacting the corresponding disulphonic acid esters with water at temperatures of 0‹ to 60‹ C. or with a combination of water, bases characterized by their water solution having pH's 8 to 12 and sufficient inert water-soluble organic diluents to form basic and substantially homogeneous reaction mixtures at temperatures of 40‹ to 100‹ C. The alpha and beta isomers of those compounds in which R 10  and R 11  are both H may be converted into the corresponding beta and alpha isomers respectively by maintaining them in the presence of inert liquid diluents in the range of 0‹ to 100‹ C. and in the presence of alkali metal amides, alkali metal alkoxides, alkyl metal hydrides or triarylmethyl alkali metals.
Patent GB-1247566-A (GB)
Title: A motor-wheel with a stator-less electric motor
IPC: H02K7/14
Filed: 1969-11-27
Abstract: 1,247,566. Electric motor wheels. DSO BACKANCAR. 27 Nov., 1969 [27 Nov., 1968], No. 58130/69. Heading B7H. [Also in Division H2] In an electric motor wheel for an industrial truck, a fixed casing 1 houses a stator-less electric motor comprising an inductor 2 and armature 3 mounted for contra-rotation, a plurality of shafts 6 on the casing 1 carry gearwheels 7 which mesh with a pinion 17 connected to the inductor 2 and with an annular gear 14 connected by pins 13 to a rotatable cup member 10 carrying a ground wheel 12, and planet pinions 16 carried by shafts 15 on the cup member 10 mesh with a pinion 18 connected by a splined shaft to the rotor 3 and with a fixed annular gear 9 connected to the casing 1 by a toothed ring 8 carried by the shafts 6. Brake discs 20, 21 connected by splines to the inductor 2 and armature 3 respectively can be mutually engaged by axial pressure applied thereto to brake the ground wheel 12. Current is fed to the motor through brushes 5 carried by a cover 4 on the casing 1.