baber/WOPTO huggingface dataset:
Patent GB-1478257-A (GB)
Title: Benzoxazine and benzodioxane derivatives and pressure sensitive copying materials containing them
IPC: C07D319/08
Filed: 1975-07-08
Abstract: 1478257 Triphenylmethane derivatives HODOGAYA CHEMICAL CO Ltd and FUJI PHOTO FILM CO Ltd 8 July 1975 [8 July 1974] 28789/75 Heading C2C [Also in Divisions C4 and D2] Triphenylmethane derivatives of the formula wherein R<SP>1</SP> and R<SP>3</SP>, which may be the same or different, each represents, an alkyl group having from 1 to 4 carbon atoms, a benzyl group or a phenyl group, the aromatic nucleus of which is unsubstituted or substituted by an alkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms or a dialkylamino group having from 1 to 4 carbon atoms in each of the alkyl moieties thereof; R<SP>2</SP> and R<SP>4</SP>, which may be the same or different, each represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms, a benzyl group or a phenyl group, the aromatic nucleus of which is unsubstituted or substituted by a halogen atom or a dialkylamino group having from 1 to 4 carbon atoms in each of the alkyl moieties thereof; R<SP>5</SP> represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, a halogen atom, a dialkylamino group having from 1 to 4 carbon atoms in each of the alkyl moieties thereof, a dibenzyl amino group, an N-alkyl-N-benzyl group having from 1 to 4 carbon atoms in the alkyl moiety thereof or an N-alkyl-N-phenylamino group having from 1 to 4 carbon atoms in the alkyl moiety thereof, the aromatic nucleus of which is unsubstituted or substituted by a halogen atom, an alkyl group having from 1 to 4 carbon atoms, or an alkoxy group having from 1 to 4 carbon atoms; and X represents an alkyl group having from 1 to 4 carbon atoms, an alkenyl group having from 2 to 4 carbon atoms, a cyclohexyl group, an aralkyl group having from 1 to 4 carbon atoms in the alkyl moiety thereof or an aryl group, the aromatic nucleus of which is unsubstituted or substituted by an alkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, a dialkylamino group having from 1 to 4 carbon atoms in each of the alkyl moieties thereof, a halogen atom, a nitro group, and when the aralkyl group is a benzyl group, the aromatic nucleus thereof is unsubstituted or substituted by an N-alkyl-N-phenyl group having from 1 to 4 carbon atoms in the N-alkyl moiety thereof, are intermediates in the preparation of colour formers for use in colour-sensitive recording material. Several methods of preparing the triphenylmethane derivatives are described.
Patent GB-665078-A (GB)
Title: Improvements relating to liquid fuel injection pumps
Inventor: FENWICK JOHN ROBERT
IPC: F02M37/04
Filed: 1949-11-10
Abstract: 665,078. Fuel-injection pumps. C.A.V., Ltd. Oct. 26, 1950 [Nov. 10, 1949], No. 28803/49. Class 102 (i). A fuel injection pump c of the plunger type, which is supplied with fuel by a diaphragm feed pump a driven through a bell crank lever e from the injection pump cam shaft d, is provided with an additional reciprocating pump i, actuated by the lever e, for withdrawing excess liquid from the cam shaft chamber b. The liquid fuel discharged from the diaphragm pump is allowed to pass, by leakage or otherwise, into the chamber for lubricating the driving mechanism, and any excess liquid therein is sucked through a pipe o, which may be provided at its entrance with an adjustable weir, and is delivered by the plunger i through a pipe p leading to the fuel reservoir. The diaphragm pump is actuated on its delivery stroke by a spring f.
Patent GB-907998-A (GB)
Title: Improvements relating to testing circuits
Inventor: HICKS DONALD KEITH
IPC: H01H67/06
Filed: 1960-08-19
Abstract: 907,998. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 2, 1961 [Aug. 19, 1960], No. 28853/60. Class 40 (4). In a test circuit for stopping a selector on a free outlet, wherein a transistor Tr1 becomes conducting when a free outlet is reached, and the voltage developed across an emitter resistance R1 brings the test wiper to an initial busy potential, the consequent operation of a test relay T applies to the emitter of Tr1 a potential nearer (and in fact equal) to the final busy potential. As shown in a PBX final selector testing arrangement the trigger pair Tr1, Tr2 normally has Tr1 non-conducting and Tr2 conducting. When free potential is encountered the conducting conditions are changed over and current in R1 is reduced as described in Specification 873,523 to bring the P-wire nearer to earth potential. Transistor Tr3 is rendered conducting by Tr2 to operate test relay T which stops the switch and applies full earth to the emitter of Tr1, this earth being applied to the P-wire via the emitter-base circuit. The latter provision caters for the following, possible maloperation of the prior circuit. Suppose two selectors P1, PN are hunting over the same group of outlets with P1 slightly ahead of P N . Circuit TC1 responds to the first free outlet, Tr1 therein conducting. However, the bridging wiper of PN would immediately afterwards apply busy earth from the preceding outlet over the multiple of the free outlet and this applied to the base of Tr1 in circuit TC1 would restore the trigger pair Tr1 Tr2 so that the initial busy condition is removed. Both selectors will now try to seize the free outlet with the risk of simultaneous connection due to slight delay in the reapplication of busy potential due to stray inductance and capacitance of the multiple. In the present instance, according to the length of the bridging period, T may not or may be released. In the former case, as soon as Tr1 becomes conducting the full earth applied by t1 prevents TC N  from seizing the circuit. In the latter case relay T in TC1 has the advantage over relay T in TC N  and operates sufficiently more quickly to busy the outlet against seizure by TC N .
Patent GB-1007190-A (GB)
Title: Improvements in or relating to thermoelectric devices
IPC: H01L35/08
Filed: 1962-12-28
Abstract: 1,007,190. Thermo-electric devices. BORGWARNER CORPORATION. Dec. 28, 1962 [Jan. 4, 1962], No. 48853/62. Heading H1K. A carrier for thermoelectric elements comprises a thermally conductive, electrically insulating plate which has a metallic layer bonded to one side thereof with a further layer of metal electroplated on to the first layer and a third layer of metal alloy bonded to the second layer, selected portions of the metallic layers being subsequently removed, so exposing parts of the plate and providing a plurality of discrete, isolated conductive regions on the plate surface. In the embodiment described (Fig. 1), two stages of a thermoelectric cascade device are formed by the electrical series interconnection of alternately P and N-type semiconductor bodies. The stages are mounted between insulating, thermally conductive plates 32a, 32c, and separated electrically by a similar plate 32b. The elements may be of bismuth telluride or antimony telluride. The copper bridging members 24, joining the semi-conductor elements are thermally and physically connected to the plate 32b by junctions 30. These junctions 30 (Fig. 3) are produced initially by fusing a silver paste to one face of a sapphire or aluminium oxide plate 32b and then electroplating copper on to the silver surface, followed by the tinning of the copper layer by a leadtin solder. Selected portions of the composite metal layer are then removed, with a abrasive cutter, leaving regions 30 on the plate surface which are positioned so as to accommodate the bridging members 24 (Fig. 1). Use of the device in a radiation detection system in which the thermoelectric device is employed in an evacuated environment is also referred to. Reference is also made to cascade thermo-electric devices involving more than two stages and the use of the junction 30 fabrication may be extended to both sides of the intermediate plate 32b.
Patent GB-483501-A (GB)
Title: Improvements in or relating to ramming machines
IPC: E01C19/34
Filed: 1936-10-24
Abstract: 483,501. Grinding, crushing, &c. machines. SCHIEFERSTEIN, G. H. Oct. 24, 1936, No. 28933. [Class 59] [Also in Groups XXI, V, X, and XXII] A machine for crushing coal or other materials comprises two oscillating masses connected by energy storing means such as springs or rubber members, an actuating device loosely coupled to one of the oscillating masses and mounted, if possible, at the neutral point or oscillation node of the system. The whole machine is preferably suspended or supported on weak springs. In a, ramming machine, a mass 1, Fig. 1, and a heavier mass 2 are connected by springs 3, and a plate 4 is connected to the springs 3 so that its distances from the masses 1 and 2 are inversely proportional to the masses and carries a motor 5 which, by means of an eccentric, a connecting rod 6 and a spring 7, causes the mass 1 to oscillate. The machine may be suspended from a crane by springs attached to the mass 2 or to the plate 4, and the motor may be hung from the plate 4 by springs. Fig. 11 shows a crushing machine, mounted on springs 29, in which rammers 1 are suspended by springs 3 from a mass 2a which is oscillated by a rod 6 and spring 7.
Patent GB-319706-A (GB)
Title: Improvements in and relating to internal combustion engines or the like
IPC: F02B3/06
Filed: 1929-09-26
Abstract: 319,706. Hurum, F. Sept. 26, 1928, [Convention date]. Pistons, cooling; piston-rods. - In a single or double-acting internal-combustion engine the piston is made in two concentric parts 1, 2 slidable relatively to one another. The inner part drives through a piston-rod 18, and a connecting rod 20 on to a central crank pin 21; the outer part drives through a tubular piston-rod 6 and outside connecting rods 12, 13 on to crank pins 14. The contiguous sliding surfaces of the two piston parts have ports, which at the end of the power strokes place the upper or lower combustion chamber 4, 5 into communication with the tubular rod 6. The cross-head 9 has a central bore 26 open to the tubular piston rod. At the end of the down stroke this bore first allows scavenging air from the port 27 to pass through the tube into the cylinder and then combustible mixture from the supply port 28; on the return stroke a further supply of air from the port 27 clears the passages and piston interior of combustible. The air and mixture ports need not be in the same cross-head guide 11 but may be arranged on opposite sides as shown at 29 and 30 for use at the end of the up stroke. The rod 18 is shown connected to a gudgeon on the inner piston part, but it may be connected direct to the piston. For a Diesel engine air only is supplied through the hollow piston rod.
Patent GB-617449-A (GB)
Title: Straw wrapping machines
IPC: B65B19/34
Filed: 1946-10-01
Abstract: 617,449. Packing-machines. DEHN, S. G. (Maryland Paper Products Co.) Oct. 1, 1946, No. 29254. [Class 94 (i)] [Also in Group XXX] In a machine for packing straws the paper wrapping strip is fed around a mandrel 193 and beneath a folder 153 to form a tube, the longitudinal seam of which is crimped together by kurling wheels 195. Lengths of the tube are cut off by scissors 105 driven from a cam 151 on a shaft 81. The scissors are mounted on a bracket 101 secured to a rod 123 which oscillates in a block 4 secured to the machine bed 1 due to a lever 129 following a cam also driven from the shaft 81. Thus the scissors having severed a length of wrapper push it onto the wrapper catchers 76, secured to a rod 51. A cam mechanism causes the rod 51 to lower the catchers 76 so that the wrapper is picked up by bifurcated semi-tubular elements of the radially disposed rotating carriers 9 which convey the wrapper beneath a guide 79 where one or more straws are inserted into each wrapper. The ends of the wrappers are sealed by crimping rollers 40, 67 and the package is then picked off the carrrier 9 by rotating fingers 42 and discharged down a ramp 55. The straws are fed from the mouth of a hopper 63 which is so arranged adjacent to a series of discs 14, 17 that the straws can only be discharged when the discs bring round one of a number of sliding channel bars 19. Each bar 19 has a mouthpiece 27 and when the bar is advanced this guiding mouth-piece fits over the wrapper and the straws which have been deposited in the channel 19 are pushed into the wrapper by a plunger 21. Both the plunger and the channel are operated by cam wheels following threads on a rotating shaft. The distance between the hopper walls, 164, 167 can be varied to allow for differing lengths of straws. U.S.A. Specification 2,146,490 is referred to.
Patent GB-855319-A (GB)
Title: Mobile machine for collecting and distributing railway ballast
IPC: E01B27/02
Filed: 1958-09-12
Abstract: 855,319. Rail track ballast cleaning machines; endless conveyers. PLASSER, F.,and THEURER, J. Sept. 12, 1958 [Sept. 12, 1957], No. 29298/58. Classes 78 (1) and 104 (2). A mobile machine for collecting and distributing ballast has at least two endless bucket conveyers 6, 6<SP>1</SP>, one on either side of the machine, which are pivotable vertically and laterally so that the lower ends pass over the lateral ports of the permanent way. The conveyers individually rotate on pivots 5<SP>1</SP> on a carrier 5 on the chassis by adjusting links 11, 11<SP>1</SP>, and 11<SP>11</SP>. Belt drives 12, 12<SP>1</SP> driven by the motor operate the conveyer chains. The conveyers discharge the ballast into hoppers 13, 13<SP>1</SP> which deposit on to a central conveyer belt 14 delivering to a hopper 15 with four outlets 15<SP>1</SP> releasing the ballast to both sides of and beneath the rails. The hopper outlets rise above the rails to negotiate points, crossings or the like by operating an hydraulic linkage 17 connected to a pivoting frame 16 to which the hopper is secured. The buckets have a rear wall secured to the chain and lying in the plane of the chain and a dished front wall pivoting on an adjacent link of the chain to automatically discharge the contents of the buckets at the top of the conveyer. A tamping-plate and cleaning screens are provided. The outlets of the hoppers may be adjusted by remote control and fixed or shaking screens may be mounted in the hoppers. The tamping-plate is situated behind the bucket conveyers with the lower end outside the sleeper ends.
Patent GB-203942-A (GB)
Title: An improved bobbin or holder for silk, thread, cord or the like
IPC: B65H75/14
Filed: 1922-10-27
Abstract: 203,942. Clark & Co., Ltd., and McLintock, D. M. Oct. 27, 1922. Bobbins &c.-A bobbin or holder for silk, thread, cord, wool &c. consists of a central wooden or like member a, and relatively large end flanges b of cardboard or similar material which are held in place by means of a metal tube d, the said tube passing through the member a and having its ends riveted over the flanges b or over washers c which surround the tube and contact with the flanges. The ends of the member a are bevelled and the flanges b are given an inward camber so as to withstand the pressure of the thread or other material wound upon the bobbin.
Patent GB-786072-A (GB)
Title: Improvements relating to trays
IPC: A47B3/12
Filed: 1954-10-13
Abstract: 786,072. Tables. RHODES, G. C. Oct. 10, 1955 [Oct. 13, 1954], No. 29448/54. Classes 52(2) and 52(3) A tray has supporting means comprising shallow channel shaped attachment members 11 adapted when secured to the underside of the tray to form slots into which support members 14 having one or more legs 16 may be slid. The member 11 has notches 18 to receive the legs 16.
Patent GB-407125-A (GB)
Title: Improvements in or relating to apparatus for use in flying ballets and other similarstage effects
IPC: A63J5/12
Filed: 1932-10-21
Abstract: 407,125. Body harness. KIRBY, A. D., 4, Lodge Road, West Croydon. Oct. 21, 1932, No. 29449. [Class 141.] Apparatus for use in flying ballets and like stage effects includes a belt 59 for a performer provided at the back with a strap 60 and buckle 61, and at the front with an apron 62 carrying thigh-straps 63, 64 and a bib 65 having shoulder straps 66, 67 adapted to be fastened to buckles on the back of the belt. On the apron is riveted a plate 70 having a projection 71 on which is secured a device 72, by means of which the belt is attached to the suspension wire and which comprises a fork 74 through which is passed a bolt 75 hinged to a slotted arm 76 slidable on a pin 78. The suspension wire is passed through the jaws of the fork 74 and tied round the pin 75.
Patent GB-1440014-A (GB)
IPC: A01K13/00
Filed: 1973-06-21
Abstract: 1440014 Sheep dipping bath I LLOYD 17 June 1974 [21 June 1973] 29477/73 Heading AIM A sheep dipping bath 1, formed from glass fibre reinforced resin, comprises two descending ramps 4, 5 followed by an intermediate portion 6, which may be horizontal or ascending, and two ascending ramps 7, 8 enclosed between inclined side walls (not shown) tapered towards the bath base.
Patent GB-905348-A (GB)
Title: Log-splitter
IPC: B27L7/00
Filed: 1960-08-26
Abstract: 905,348. Splitting wood. BRUKNER, C. J. Aug. 26, 1960 [Aug. 27, 1959], No. 29533/60. Class 145. A log-splitting machine comprises a bed 22 for receiving a log to be split, an axe 55 having a cutting-edge to split the log, an hydraulic motor 33 having a cylinder 72 fixed to the bed and a ram 100 movable along the bed against the log upon application of hydraulic pressure, retracting means 115 to return the ram upon removal of the hydraulic pressure, and control means 44 operable to apply pressure hydraulic fluid to the motor and to allow the return of the ram by the retracting means. The cylinder 72 is provided with an inner open-ended cylinder 80 having slidably mounted around it a sleeve 34 which is fixed at one end to a piston 85 operating in the annular space between the cylinders and at the other end to the ram 100. The ram has a plate 106 having spikes 110 to engage with the log and is guided along the bed 22 by runners 103 fixed to the plate 106. The retracting springs 115 are attached to the runners 103 by a wire 122 passing around a pulley 123. The axe 55 is bolted to two plates 52, 53 which are fixed to the bed 22 and have bolted on top of them a wedge plate 60 to spread the halves of the split log. A gear pump driven by a petrol engine 38 draws oil from a supply tank 25, circulates it past the inlet 82 to the inner cylinder 80 and discharges it into the tank 25. On pulling a handle 43, the control means 44, in the form of a spindle valve, cuts off the discharge to the tank and the oil pressure builds up and acts, through the connection 82, on the end of the sleeve 34 to drive the ram 100 along the bed 22, oil being sucked from the tank 25 through a connection 95 and a valve 180 into the annular space between the cylinders 72, 34. If the axe 55 encounters a knot or other hard portion of the log, the ram 100 slows and the hydraulic pressure increases, this increase being detected by a device 190 which changes over the valve 180 to additionally supply the pressure oil through the connection 95 to the piston 85. When the resistance of the log drops, the valve 180 is once more changed over to its original position. At the end of its stroke, the ram trips a bar attached to the lever 43 which causes the valve 44 to discharge the oil from the pump to the tank again and shuts the engine 38 down to idling speed during the return stroke. At a suitable point in the return stroke of the ram, the runners 103 may strike an adjustable stop to initiate the working stroke. To shorten the stroke in manual operation, a notched rod is provided in a groove in a plate 243 and is arranged to abut the runners 103 at the required point in the back stroke. A platform at the level of the bed 22 may be fitted around the axe head 55 to collect the split logs. The machine is mounted on wheels 30 which are arranged to be raised for operation of the machine, and the body portion 29 is of sledge-like construction enabling the machine to be hauled over rough ground or snow with the wheels raised.
Patent GB-800278-A (GB)
Title: Plastic materials having a cellulose triacetate basis
IPC: C08L1/12
Filed: 1955-10-17
Abstract: Powdered cellulose triacetate is thoroughly mixed with a solution of a plasticizer in a solvent which may be a swelling agent for, but is not a solvent for, the cellulose triacetate; the solvent is evaporated and the mixture is heated to 60 DEG  to 80 DEG  C. for several hours.  The plasticiser may be an alkyl phthalate, aryl phosphate, alkyl phthalyl-glycolate or an alkyl p-toluenesulphonamide, dimethyl phthalate and mixtures thereof with triphenyl phosphate or ethyl-p-toluenesulphonamide being specified, and the solvent may be methyl, ethyl or butyl alcohol, benzene or a light petroleum fraction.
Patent GB-280235-A (GB)
Title: Improvements in or relating to directional wireless apparatus
IPC: G01S3/14
Filed: 1927-11-05
Abstract: 280,235. Telefunken Ges. f³r Drahtlose Telegraphie. Nov. 5, 1926, [Convention date]. Vacuum tubes.-The path of the electron stream from a cathoderay tube is controlled by voltages derived from a pair of directional aerials. The incoming signal voltages are applied across two pairs of control electrodes a, a, b, b, which may be either plates or coils. For a definite ratio of applied voltages, the path of the electron stream will strike a sector-shaped metal screen S. and will induce currents which may be detected in a suitable external circuit (not shown). Other ratios, corresponding to signals coming from directions other than that desired, will not be recorded in the external detecting circuit. A screening device may be incorporated in the tube further to protect the sector S against undesired signals. Alternatively the sector S may be replaced by a screen adapted to be illuminated by the impact of the electron stream, the luminescence, in turn, exciting a photoelectric cell inserted in series with a suitable indicating circuit. Or secondary emission created by the impact of the electron stream may be utilized to record the incoming signals. Specification 247,344 is referred to.
Patent GB-674013-A (GB)
Title: Power transmission flexible coupling
IPC: F16D3/68
Filed: 1949-11-21
Abstract: 674,013. Universal joints. HIRST, T. E. C. Oct. 24, 1950 [Nov. 21, 1949], No. 29711/49. Class 80 (ii). A torque-transmitting rubber unit 1 is axially compressed, with or without surface bonding, between driving and driven sheet-metal discs 2, 3 by adjustable axial loading of a part-spherical centring bearing 5, 6, 7, as by a nut 6A, and the discs have alternating pressed axial projections 4 which, during drive, stress the rubber in shear, compression and tension along D, C and Cl respectively. Tapped sockets 8 provide for attaching the discs to shaft-members.
Patent GB-712734-A (GB)
Title: A travelling device for picking up grass, hay or other material lying on the ground
IPC: A01D78/00
Filed: 1952-11-25
Abstract: 712,734. Hay-loaders. LELY, C. VAN DER. Nov. 25, 1952 [Dec. 3, 1951], No. 29757/52. Class 6 (3) In a machine for picking up grass, hay or other material lying on the ground comprising a pick-up mechanism and a rake, the rake comprises one or more rake wheels 8. the axes of rotation of which are convergent in a forward direction, the wheels being rotated by contact with the ground. As shown, the wheels 8 are provided with teeth and are mounted on spring- urged cranks (not shown). The rake wheels draw the material towards an elevator 1 which feeds the material to a vehicle 2. The machine is attached to a tractor by means of a coupling 6. The rake wheels may be raised from the ground in known manner. The wheels may be provided on one side only of the elevator and the elevator may be situated behind the vehicle 2. The elevator may be replaced by a short conveyer which feeds material to a cutting or chopping machine which delivers material pneumatically through a tube to the vehicle.