baber/WOPTO huggingface dataset:
Patent GB-887405-A (GB)
Title: Improvements in or relating to electrical generator regulating systems especially for mechanically propelled vehicles
IPC: H02J7/16
Filed: 1958-05-01
Abstract: 887,405. Automatic voltage control systems. BOSCH G.m.b.H., ROBERT. May 1, 1958 [May 2, 1957], No. 13848/58. Class 38 (4). In an automatic voltage regulator for a shunt exciter D.C. generator of the kind in which a transistor is in series with the field winding, current limiting is effected in accordance with the voltage drop across a resistor in series with the load. In one embodiment, Fig. 1, a generator G having a field F supplies a load L and battery 10 over a rectifier D2 (which replaces the cut-out). The field F is in series with a transistor T2 which is controlled via a common emitter amplifier T1 in accordance with the voltage drop across series resistor R5 and the difference between the generator output voltage tapped off a potential divider R1, R2 and the breakdown voltage of a Zener diode D1. In a modification, Fig. 2 (not shown), the amplifier T2 is replaced by an NPN transistor operating in common-base connection. In another modification, Fig. 3 (not shown), the field F is shunted by a diode and further reactance is added to the circuit so that it forms a relaxation oscillator to give intermittent control of the field.
Patent GB-295083-A (GB)
Title: Volumetric gauge flask
IPC: B01L3/08
Filed: 1927-05-24
Abstract: 295,083. Haynes, H. M. May 24, 1927. Measures of capacity.-A volumetric flask is provided with a side tube a to facilitate reading of the liquid meniscus.
Patent GB-293945-A (GB)
Title: Improvements relating to electric batteries or accumulators
IPC: H01M50/204
Filed: 1927-05-24
Abstract: 293,945. Trotter, G. H. May 24, 1927. Cells.-A carrier for a battery consists of a metal strip 1, the upper ends 4 of which engage the cover of the battery as shown in Fig. 1. A handle 6 engages in openings 5 in the strip 1. The cells of the battery are provided with grooves or projections to receive the strip 1 and hold it in position. To prevent relative movement between the cells a bar 14 is passed into the channel formed by grooves in the adjacent walls of the cells. The upper end of the bar 14 is formed with a crosspiece 15 which engages in a recess in the battery cover. The lower end of the bar 14 is fixed to the strip 1 by a screw 16. To remove the carrier from the battery the upper ends of the strip 1 are forced apart. The handle 6 may be used for this purpose, one end of the handle being inserted in an opening 18 in the strip 1. Fig. 8 shows an alternative method of fixing the handle 6 to the strip 1 by means of bolts and nuts 17. The strip 1 instead of being made to spring into position may be composed of parts hinged together.
Patent GB-548643-A (GB)
Title: Method of, and apparatus for, producing a television picture with a cathode-ray tube and separate light-source
IPC: H04N5/74
Filed: 1941-10-29
Abstract: 548,643. Cathode-ray tube television receivers. GES. ZUR FORDERUNG DER FORSCHUNG AUF DEM GEBIETE DER TECKNISCHEN PHYSIC AN DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE. Oct. 29, 1941, No. 13941. Convention date, Nov. 30, 1940. Addition to 543,485. [Classes 39 (i) and 40 (iii)] Relates to cathode-ray tube television receivers in which a fluid screen is locally deformed by the scanning cathode-ray to modulate a light beam throwing the image on a viewing screen as described in the parent Specification. According to the invention, the fluid medium is caused to move continuously or in small steps through the scanning position so as to prevent accumulations of undesired distortion. As shown in Figs. 1 and 2, the fluid medium is on a disc 1, the part 13 of which is subject to the scanning action of the cathode-ray 12. The disc 1 is slowly rotated by a motor 2 through gearing 3. At the same time, the motor drives a roller 5 through gearing 4 and reciprocates a rake 7 to and fro and up and down by means of an eccentric 8. The rotation of the disc 1 in the direction of the arrow brings the fluid layer out of the scanning position, then under a cooling chamber 9; and from there to the roller 5 which ensures a correct level of the medium before it returns to the scanning position 13. Any fluid adhering to the roller 5 is scraped off by a knife 6, and the accumulation 15, Fig. 2, of fluid against the roller is checked and spread by the reciprocating movements of the rake 7. In a modification, the level of the medium is controlled by a fixed blade behind which an inverted trough-like chamber is provided to receive and spread the excess material at the back of the blade. In another modification, the medium is carried by a belt which unwinds from a reel in a vessel containing the medium and is wound up on another reel in another vessel after passing through the scanning position. In another modification, the fluid medium is picked up by a vertical rotating disc, the lower edge of which dips in a vessel containing the fluid. Rollers may be provided to level the layer on one side and to remove the medium from the other side of the disc. In still another modification, the fluid is made to flow in a layer along a fixed wall, the flow being produced by gravity or by pumping.
Patent GB-310976-A (GB)
Title: Tube
IPC: B65D35/00
Filed: 1929-05-04
Abstract: 310,976. Boruss, S. May 4, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Tubes or containers, collapsable.- Collapsable tubes or containers are made of transparent flexible material, so that the colour of the contents may be seen. Any material made of cellulose. such as celluloid, or the. material known under the registered Trade Mark Cellophane, may be used. The tubes may be formed by cutting pieces from a long tube, or by rolling plates of the material over a mandrel and sticking the edges of the plate together. The tube body 1, Fig. 1, may be closed at both ends by metal strips 2, or may have at one end an outlet part 3, Fig. 2, provided with a screw cap 6. The outlet end of the tube may be closed by a cork.
Patent GB-1377904-A (GB)
Title: Chipboard
IPC: D21J1/08
Filed: 1973-03-22
Abstract: 1377904 Waterproofing wood E A ELO 22 March 1973 [4 April 1972] 13964/73 Heading D1P Water-proof chip board comprises wood impregnated under vacuum with an aqueous solution, dispersion or suspension of an elastomer of MW less than 500,000. The elastomer may be natural rubber or isoprene or butadiene homopolymers, acrylonitrile, styrene, ethylene or propylene copolymers, or terpolymers with a terpene. The elastomer may include dyes, preservatives and bitumen. The elastomer can be applied to a preformed phenol- or polyurethane-impregnated chip board.
Patent GB-167332-A (GB)
Title: Improvements in and relating to folding and collapsible seats or the like
IPC: A47C4/16
Filed: 1920-05-21
Abstract: 167,332. Heller, W., and Heller, H. J. May 21, 1920. Folding and collapsable seats. - Folding and collapsable seats of the type collapsing into bar or stick-like form comprise front and back frames hinged together at one end and parallel companion side members supporting a flexible seat and adapted to fold against the back frame or lie supported at their free end from the front frame. The back frame b comprises side members d<2>, d' connected by the folding link and pivoted at c to the corresponding side members d, d<1> of the front frame a, which are connected by the folding cross links l, the upper ends of which have sliding connections with the front of the side members d, d<1>. The members f, f<1> carry the seat e and in the open position engage notches m<2>, m<3>, in the links l which carry fastening- hooks 3. In a modification, the arms f, f<1> are notched for engagement with notches in the links l. A flexible back-rest o and detachable or permanent swinging or fixed arm rests q may be provided.
Patent GB-1495813-A (GB)
Title: Vehicle with an engine shield assembly
IPC: B62D49/06
Filed: 1975-04-07
Abstract: 1495813 Vehicle engine shields DEERE & CO 7 April 1975 [19 April 1974] 14120/75 Heading B7B A vehicle engine shield comprises a fixed hood 54 and two side doors 98, 144 hinged at their lower edges by hinges 100 and 146, respectively, the doors being held closed by latches arranged so that the latch on the top door 98 is accessible to an operator only when the lower door 144 is open. Similar doors 98, 144 may be provided on the opposite side of the engine. The engine is shielded in the vicinity of the gap between the doors 98, 144 by a V- shaped baffle 90. The door 144 is held in its  closed position by spring-loaded latches 152, 166 engaging apertures in fixed upright members 84, 88. The adjacent ends of latches 152, 166 are bent upwardly to form handles 148, 150 accessible through the gap between the doors 98, 144. A hooked-shaped member 182 is pivotally mounted on upright member 88 and projects through an opening 186 in the door 144 to receive a padlock securing the door in its closed position. The upper door 98 is held closed by latches 110, 112 having cranked ends 106, 108 engaging slotted latch plates 140 on the upper edge of the door. The latches 110, 112 are rotatable about vertical axes by handles 142 when the lower door is open. The lower door 144 is provided with a step 200 and foot rail 196 on its inside face which are brought into their operative positions when the lower door is opened.
Patent GB-640366-A (GB)
Title: Improvements in presses for the manufacture of footwear
IPC: A43D35/00
Filed: 1947-08-28
Abstract: 640,366. Presses for moulding soles and heels on to footwear uppers. SPENCER & SON (WATERFOOT), Ltd., W., and SPENCER, T. Aug. 28, 1947, No. 14150. [Class 87 (ii)] In a press for moulding a sole or sole and heel of a mouldable composition, with or without an insertion, and bonding it to a pre-formed upper, the bottom of the mould consists of a former or last D<SP>1</SP> adapted to receive the upper d<SP>1</SP>, the sides of the mould comprise a member El having an aperture corresponding in size to the sole &c. and secured to a sliding plate E, and the top of the mould F<SP>1</SP> corresponds in contour to the wearing surface of the sole &c., the last D<SP>1</SP> being secured to a rod C<SP>2</SP> which is actuated by hydraulic, pneumatic or other means to move the last into engagement with the member El and then to carry the last and member E<SP>1</SP> to the top F<SP>1</SP> of the mould, the sides of the member E<SP>1</SP> passing over the edges of the top F<SP>1</SP> so that pressure is applied to the sole &c. H in the mould (Fig. 6). The plate E carries vertical guides e co-operating with the edges of a platform D to which the last D<SP>1</SP> is secured. Correct location of the last is ensured by a spigot d. The top pressing member Fl is connected to a hollow plunger F which is slidably mounted in a fixed crosshead F<SP>2</SP> and houses the end of a spring G. The final moulding pressure may be varied by varying the strength of the spring G. Springs a which are compressed during the moulding operation assist in the subsequent opening of the mould when the plate E and last D<SP>1</SP> are lowered. Alternatively, the finished article may be ejected upwardly. The mould can be made to open to assist ejection. The members Fl and El are hollow, so that heating and cooling media may be circulated in them.
Patent GB-438274-A (GB)
Title: Improvements in and relating to bricks
IPC: E04B2/14
Filed: 1934-05-10
Abstract: 438,274. Bricks. LINCOLN, R., The Oaks, Beechcroft Road, Golders Green, London. May 10, 1934, Nos. 14172 and 21518. [Class 87 (i)] A brick of the size of two ordinary bricks placed side by side has a cavity 6 extending through from one square face to the other and intersected by a channel or aperture 7 extending through the brick in a plane at right-angles to the axis of the cavity 6. The channel 7 may be as shown, and a similar channel may be formed in the lower face of the brick, or a circular hole may extend through opposite sides of the brick. Frogs 8 may be provided.
Patent GB-765228-A (GB)
Title: Improvements in or relating to automatic control systems for high voltage direct current supply to electrostatic precipitators and transformers especially suited to use in such systems
IPC: B03C3/66
Filed: 1954-05-14
Abstract: 765,228. Transformers; automatic control systems for electrostatic precipitators. RESEARCH CORPORATION. May 14, 1954, [July 2, 1953], No. 14173/54. Classes 38 (2) and 38 (4). The voltage applied to an electrostatic precipitator is controlled by supplying the main rectifier from a saturable transformer, the saturation of which is controlled in accordance with the sparking rate in the precipitator and/or the electrode current. The transformer, Fig. 1, has one limb 4, carrying both primary and secondary windings; two limbs 6, 8 having a total cross-section equal to limb 4 and carrying a non-inductive D.C. saturating winding; and a gapped limb 10. As the flux in limbs 6 and 8 is increased, so A.C. flux is diverted into the gapped limb 10 and the secondary voltage is reduced. In a modification, Fig. 2 (not shown), the positions of the limbs 4 and 10 are interchanged. As applied to precipitator control, Fig. 6, the electrode current is detected by a resistor 28a in the lead between the main rectifier 22 and the earthed electrode of the precipitator. A voltage tapped off resistor 28a controls the grid of a gas-filled triode 32 energizing the saturating winding on the supply transformer (not shown). The high-tension supply for the triode is also tapped off resistor 28a. In a modification, Fig. 7 (not shown), the triode has an auxiliary anode supply; in a further modification, Fig. 8 (not shown), a pair of triodes act as a full-wave rectifier to supply the saturating winding; and in a still further modification, Fig. 5 (not shown), the saturating winding is simply connected across the resistor. In a further embodiment, Fig. 9, the saturating winding 18a is connected in series with the electrode supply but is variably shunted by a rheostat 40 operated by a motor 44 in response to sparking rate detected by a capacity probe 60. Each spark detected triggers a gas-filled triode 64 controlling the current in a heater 66 which controls a temperature-sensitive bridge consisting of temperature-sensitive resistor 54, ambient temperature compensating resistor 58, manual setting potentiometer 52, resetting potentiometer 56 and a pair of relays 48, 50 which control the motor 44. Thus increased sparking increases the value of the shunt rheostat 40 to reduce the electrode voltage.
Patent GB-1472864-A (GB)
Title: Method of preparing cephalosporins
IPC: C07D501/08
Filed: 1975-04-05
Abstract: 1472864 Cephalosporins SOC FARMACEUTICI ITALIA SpA 30 March 1976 [5 April 1975] 14241/75 Heading C2C A process for the preparation of cephalosporin derivatives of the formula wherein R is hydrogen, (C 1 -C 4 )alkyl, t-butoxy, benzyloxy, cyanomethyl, thienylmethyl, furylmethyl, naphthylmethyl, phenylmethyl, phenoxymethyl, phenoxyisopropyl, pyridyl- 4 - thiomethyl or tetrazolyl - 1 - methyl; R<SP>1</SP> is (C 1 -C 4 )alkoxy, benzyloxy, p - methoxybenzyloxy, p - nitrobenzyloxy, benzhydryloxy, triphenylmethoxy, phenacyloxy, p - halophenacyloxy or trichloroethoxy; and Z is hydrogen, bromine, chlorine, iodine, hydroxy, alkoxy, acyloxy, azido, amino, aminocarbonyloxy or an -S-mononuclear nitrogen heterocyclic ring, comprises reacting a compound of the formula or a mixture thereof, wherein R<SP>2</SP> and R<SP>3</SP> are (C 1 -C 4 )alkyl, a mononuclear aryl or heterocyclic ring, cyano, -COR<SP>4</SP>, -COOR<SP>4</SP>, wherein R<SP>4</SP> is (C 1 -C 4 )alkyl or a mononuclear aryl or heterocyclic ring, or R<SP>2</SP> and R<SP>3</SP> together represent a residue of the formula in solution in an anhydrous organic solvent at a temperature of from - 100 to + 120 C., with a strong base to a compound of the invention that is a mixture of # 2  and # 3  cephem-derivatives, and separating the # 3  cephem-derivatives therefrom. The base is suitably a metal alcoholate or thioalcoholate, a metal phenate or thiophenate optionally substituted in the aromatic ring, a metal amide, an organometallic compound, lithium hexamethyldisilazane, an alkali metal hydride or a conjugate base of a dialkyl sulphoxide.
Patent GB-283514-A (GB)
Title: Improvements in and relating to earth boring drills
IPC: E21B10/20
Filed: 1927-05-27
Abstract: 283,514. Reed, C. E. Jan. 12, 1927, [Convention date]. Borchole apparatus.-An earth-boring drill of the roller cutter type comprises a one-piece drill head 1 with a V-shaped recess in its lower end receiving a pair of rolling cutters 3 which cut the entire area of the bottom of the hole; the cutters are supported on spindle members each comprising a shank 2c and a base 2d, the cutters having rearward stems 3b with tapered or cylindrical flanges 3c cut away on one side and the spindle members being longitudinally divided so that they may be connected to the cutters by insertion of the two halves in turn into engagement with the flange 3c. After assembling each cutter on its spindle, the shank of the latter is inserted in a direction parallel to the axis of the drill head into an aperture 1f therein; the shank is then secured in position by a lock 4, the lock and shank having similar guide ways and lugs to form a bayonet joint and being held in locked position by retaining means inserted in the guide-ways. The tool may be slush-lubricated or each spindle may be provided with a conduit g and each cutter with a cavity f and passages j, the conduit g and cavity f being filled with lubricant before the parts are assembled and a plunger h being inserted in the conduit g ; in use, flushing fluid from passage 1c flows through a vent i to cause plunger h to feed the lubricant to the cutter.
Patent GB-910518-A (GB)
Title: Acidic partial esters as lubricating oil additives
IPC: C07C69/34
Filed: 1960-04-25
Abstract: Lubricants comprise a synthetic ester lubricating oil to which is added 0,01-2% by weight of the oil of a partial ester obtained by reacting 1,2-2 mols of a C4-C12 alkandioic acid with 1 mol of a C2-C36 glycol.  The ester oil may be a diester, polyester or complex ester, e.g. the diesters obtained by esterifying a C4-C10 alkandioic acid with a C6-C13 alkanol especially oxo alcohols or of esterifying a glycol or polyglycol with a monocarboxylic acid, polyesters obtained from tri- and tetra-hydric alcohols and monocarboxylic acids and complex esters obtained from a dicarboxylic acid, a glycol or polyglycol and an alcohol and/or a monocarboxylic acid.  The acid used in the formation of the partial ester may be adipic, sebacic, azelaic or isosebacic (mixture of C10 acids) acid and the glycol may be ethylene, propylene, butylene, pentylene, hexylene, octylene, polyethylene or polypropylene glycol.  Optional ingredients are 0,0-10% of each of phenothiazine or phenyl-a -naphthylamine or p-aminodiphenylamine, a polymethacrylate or polystyrene and dimethyl silicone polymers.
Patent GB-438136-A (GB)
Title: Improvements in or relating to articles made of ebonite
IPC: D01D7/02
Filed: 1934-05-12
Abstract: 438,136. Moulding spinning pots. INDIA RUBBER, GUTTA PERCHA, & TELEGRAPH WORKS CO., Ltd., Thames House, Millbank, and HARDING, H. L., India Rubber, Gutta Percha, & Telegraph Works, Silvertown, both in London. May 12, 1934, No. 14414. [Class 87 (ii)] [See also Groups II and IX] A spinning-pot is formed with a support of textile fabric 1 impregnated and coated with ebonite. Layers of the fabric may be coated on one or both sides, cut to shape, and built up on a former to present inner and outer ebonite walls 2, 4 and base portions 3, 5. The pot is vulcanized in a mould and the ebonite mixture is preferably such that low temperature vulcanization is possible. The fabric may be fine cambric. The side walls 2, 4 may have a larger number of fabric layers than elsewhere and the ebonite may be applied more thickly as at 6. The base may have an extension 13 with a flange 11 and a central recess carrying a boss 7 and a washer 12. The bore of the boss may be conical to give grip on a spindle for rotating the cup. A grooved recess 9 may be provided on the inner side of the wall 2.
Patent GB-542477-A (GB)
Title: Improvements in or relating to propellor shafts of self propelled vehicles
IPC: F16D3/28
Filed: 1940-09-21
Abstract: 542,477. Flexible joints LAYCOCK ENGINEERING CO., Ltd., and CHARLESWORTH, T. R. Sept. 21, 1940, No. 14437. [Class 80 (ii)] A coupling between one end of a propellor or like shaft 4 and a universal joint 6, 7, comprises the combination of (1) a telescopic joint freely permitting both relative axial and rotary movements of the coupled parts and maintaining them in alignment, and (2) a flexible joint which permits to a limited extent and cushions such relative movements. As shown, the telescopic joint comprises a spigot 9 freely engaging a bore in a socket 8 fixed to the part 7 of the universal joint. The socket 8 and shaft 4 have radial arms 17 carrying axial pins 18, the latter fitting into rubber bushes 22 carried by a floating member 20. The latter may be of the type described in Specification 387,178. One end of the bore in the socket 8 may be closed by a cap 23 formed with an air hole, and the other end by a flexible sleeve 24.
Patent GB-704687-A (GB)
Title: Improvements in liquid detergent compositions
IPC: C11D17/00
Filed: 1951-06-19
Abstract: Two or more soapless detergents are dissolved in water to give a clear solution, at least one of the detergents being present in an amount which, when dissolved separately under the same conditions in the same amount of aqueous solvent, would not yield a clear solution. Anionic detergents such as the alkyl aryl sulphonates, alkyl sulphonates, fatty alcohol sulphates, condensation products of fatty acids with taurine and its derivatives, and monoglyceride sulphates may be used.  Preferred anionic detergents are those of formula R.SO3M where M is an alkali or alkaline earth metal and R is either an aliphatic group containing at least 10 carbon atoms and an ester or amide linkage or an alkyl substituted mononuclear aromatic ring. Specified examples are the salts of oleyl methyl taurine, salts of fatty acid esters of isethionic acid and the sodium salts of dodecyl benzene sulphonates and dodecyl toluene sulphonates.  Non-ionic detergents such as the polyethylene glycol ethers of long-chain alcohols or of alkylated phenols and partial fatty acid esters of polyglycerol or polyglycol may also be employed in the compositions. The total detergent content of the solution may be at least 10 per cent. by weight, and frequently 20 per cent or more.  The solutions may be prepared by mixing aqueous pastes or solutions of each detergent, warming to effect solution if necessary, or by dissolving the mixed detergents in the desired amount of water.  In an example 20 parts by weight of a paste containing 35 per cent. of the sodium salt of oleyl methyl taurine, 8 per cent. of sodium chloride and 57 per cent. of water are mixed at 40 DEG -50 DEG C. with 40 parts by weight of a solution containing 30 per cent. of an alkyl sulphonate, 2 per cent. of sodium chloride and 68 per cent. of water to give a solution containing 32 per cent. of soapless detergents.
Patent GB-295777-A (GB)
Title: Driving aggregate for use in connection with self-propelled electric vehicles
IPC: H02P9/00
Filed: 1927-05-30
Abstract: 295,777. Gelinek, M. May 30, 1927. Drawings to Specification. Electric power transmission systems.-Power plant for a vehicle comprises a prime-mover coupled to a self-excited generator, or a generator excited by a self-excited machine, in which magnetic circuit of the self-excited machine remains unsaturated throughout its working speed range and the machine operates always on an unstable or inclined characteristic. The output of the generator remains constant whilst its voltage varies inversely as the load current taken by the series motor or motors which it supplies. The vehicle is controlled entirely by the fuel supply and the power-speed characteristic of the prime-mover is adapted to the characteristic of the self-excited machine. The effect of armature reaction may be counteracted by a comparatively large air-gap and a small compound winding.