baber/WOPTO huggingface dataset:
Patent GB-615475-A (GB)
Title: Electric heating oven with liquid resistance
IPC: F27D11/04
Filed: 1946-05-16
Abstract: 615,475. Electric furnaces. REYNERI, C. A. May 16, 1946, No. '14880. Convention date, March 2, 1945. [Class 39 (iii)] An electric oven has as its source of heat a plurality of tanks disposed about a hearth, each tank containing salts held in a state of fusion by the passage of an electric current through their mass. The oven may have a tank 2 on each side of a central chamber 1 and a third tank 2 at the back of the oven, the current for each tank being supplied by independent electrodes 3. Alternatively the oven may be tunnel-shaped with a central hearth, a tank being disposed along each side of the hearth. The Specification as open to inspection under Sect. 91 comprises also (1) an oven with a central hearth surrounded by a ring-shaped tank (2) an oven with a centrally disposed tank. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1342112-A (GB)
Title: Self-thermosetting unsaturated polyesters and method for preparation thereof
IPC: C08G63/553
Filed: 1971-05-14
Abstract: 1342112 Unsaturated polyesters ASAHI KASEI KOGYO KK 14 May 1971 [20 May 1970] 14887/71 Heading C3P [Also in Division C2] Addition polymers are obtained by curing in the presence of a peroxidic catalyst unsaturated polyesters of the formula wherein R represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, X represents a linear or branched alkylene or oxyalkylene radical having 2 to 12 carbon atoms, a cycloaliphatic radical having 4 to 6 carbon atoms or a group of the formula wherein R<SP>1</SP> and R<SP>2</SP> represent hydrogen atoms or alkyl radicals having 1 to 3 carbon atoms, and R<SP>3</SP> represents a linear or branched alkylene radical having 2 or 3 carbon atoms; Y represents an alkenylene radical having 2 to 10 carbon atoms, a phenylene radical, a cyclohexylene radical or a linear or branched alkylene radical having 2 or 3 carbon atoms, at least 20% of the radical Y being alkenylene radicals, Z represents a hydrogen atom, an alkyl radical having 1 to 3 carbon atoms, or a group of the formula wherein R and X are as defined above and n represents a number from 0 to 50 (see Division C2). Optionally vinyl and allyl monomers may be added to the curing composition. In examples: an unsaturated polyester obtained by reacting 2-hydroxyethyl norbornene carboxylate with maleic anhydride is heated with benzoyl peroxide (19) and glass cloth is laminated with an ester obtained by reacting maleic anhydride with ethylene glycol, isophthalic acid, and 1,3-propylene glycol and esterifying the product with 5-norbornene-2-carboxylic acid, in admixture with styrene and benzoyl peroxide (20).
Patent GB-501833-A (GB)
Title: Improvements in or relating to mercerised yarns and fabrics
IPC: D06M11/38
Filed: 1937-05-28
Abstract: 501,833. Treating textiles. CARP'S GARENFABRIEKEN N.V., J. A. May 28, 1937, No. 14899. Void. Convention date, May 29, 1936. [Class 15 (ii)] Mercerized yarns or fabrics are treated, while substantially not under tension, with a liquid exerting a shrinking action. The material is dried after removal of the liquid and stretched preferably under a slight tension. The material thus becomes stronger and acquires an enhanced elasticity which may be 25 per cent higher than that of the original yarn and retains substantially the gloss produced by the initial mercerization. The materials treated may be of cotton, linen or wool, and the shrinking liquid may be a strong alkali, e.g. caustic soda or a sotution of zinc chloride or sulphuric acid.
Patent GB-221550-A (GB)
Title: Improvements in electric converting apparatus
IPC: H02M7/54
Filed: 1923-06-07
Abstract: 221,550. Calverley, J. E., and Highfield, W. E. June 7, 1923. Commutator switching-arrangements.-In converting apparatus employing commutating gear rotated by a synchronous motor 11 receiving alternating current from the apparatus, the speed of the motor is maintained' within a defined range, thereby keeping the frequency of the alternating current approximately constant, by acting directly or indirectly on the excitation of the motor. In the arrangement shown, the motor is excited by a generator 12 mounted on the shaft 10 which carries the commutator brushes 17, the generator being provided with a shunt field winding 13 and a series field winding 15 in the direct-current supply mains 4, so that its excitation is proportional to the load on the converting-apparatus. In another arrangement, electromagnetic means depending on the current in the direct-current mains 4 or alternating- current mains 6 are employed for regulating the excitation of the motor or generator in accordance with the load. In another arrangement, a current transformer connected in the mains 6 may supply current to a rotary converter, the directcurrent side of which supplies de-compounding turns on the field of the motor 11 or exciter 12. Specifications 140.853 and 150,824 are referred to.
Patent GB-1216614-A (GB)
Title: Method of assembling a member in a support
IPC: B26F1/44
Filed: 1969-03-21
Abstract: 1,216,614. Cutting presses. DOVEY MFG. CO. 21 March, 1969 [25 March, 1968], No. 14961/69. Heading B4B. [Also in Division E2] A blade member 14 is releasably retained in a groove 34 of a support 10 by a resiliently deformable member 44. As shown, the blade member 14 is a rotary knife which is mounted for rotation on the support member 10 for cooperation with an anvil 18 mounted for rotation on a shaft 20. As shown, the member 44 is a coil spring, above which a second coil spring 46 is located. In another arrangement, Fig. 7 (not shown), the inner edge of the blade is formed with a right-angled extension which engages the base of the groove. In a further arrangement, Fig. 9 (not shown), the inner spring is replaced by a solid block (64) which engages the blade and a side wall of the groove.
Patent GB-1514906-A (GB)
Title: Cell culture reactor and method
IPC: C12N5/071
Filed: 1977-04-12
Abstract: 1514906 Apparatus for culturing tissue cells MONSANTO CO 12 April 1977 [12 April 1976] 14989/77 Heading C6F Tissue cells are cultured on a plurality of elongate fibres arranged in a shallow layer during a substantially uniform flow of culture medium though the fibre layer transverse to the plane of the longitudinal axes of the fibres. The elongate fibres may be hollow tubes or solid filaments ranging in diameter from 100 to 1000 microns. They can be disposed in parallel or in an ordered or randomly distributed mesh form. The fibre bed can be composed of up to 50 thicknesses of individual fibres. Separate layers of fibres can be interspersed with support plates or spacers. Alternatively, a continuous length of fibre can be folded or pleated in a suitable manner to form a plurality of elongate strands or segments, or wrapped around a screen or support plate. The reactor depicted in Figs. 2 and 3 consists essentially of the fibres held on a support plate 34 which in turn is mounted within a chamber defined by the interengaging parts 12 and 13 of the reactor. Culture medium is pumped upwardly past the fibres during passage from inlet ports 26, 27 to a single outlet port 28. Provision of a distributer plate 35 and a generally conical top wall 25, see Fig. 3, improves the uniformity of flow. An access port 29 can be used for inoculation and sampling. In further embodiments the fibre layer is sandwiched between an upper micrometallic filter (41) having a pore size of 10-100 microns and a lower micrometallic filter (40) of pore size 0À5-10 microns Fig. 4 (not shown). The latter replaces the distributer plate. The top wall of the chamber will in this case be planar. Air or oxygen may be passed through the interiors of hollow fibres from a manifold (50) Fig. 5 (not shown). The reactor may for example be constructed of moulded methyl acrylate plastic and the fibres spun from polyvinyl chloride - acrylic copolymer, polysulphone or polyacrylonitrile.
Patent GB-903208-A (GB)
Title: Improvements in time division multiplex systems
IPC: H04Q11/04
Filed: 1961-04-25
Abstract: 903,208. Multiplex pulse-code signalling. TELEFONAKTIEBOLAGET L.M. ERICSSON. April 25, 1961 [April 25, 1960], No. 14991/61. Class 40 (5). In a time division multiplex pulse code modulation system in which each channel comprises a plurality of pulse positions, signalling information, e.g. charging, trunk signalling, &c. is transmitted in each alternate multipled cycle by similarly positioned pulses in those channels over which signalling information is to be sent, and synchronizing signals are sent on predetermined channels in the same pulse positions as those used for signalling information during the remaining cycles. In the system described, there are eight pulse positions for each channel and the eighth position is available on alternate cycles for signalling information for such channels as require it. In the remaining cycles, synchronizing pulses are sent at the eighth pulse position of the first three channels of the cycle. At the receiver the incoming signals are decoded at DK and the eighth pulse, if present, of each channel is fed to the gate circuits GA, GB. The gate GA is opened only during the eighth pulse period of the first three channels on the alternate cycles during which synchronizing signals are transmitted and supplies a circuit Sy controlling the synchronization of the receiver. The gate GB is closed during the synchronizing pulse periods in the alternate cycles and open for the remainder of those cycles. It is also closed during the cycles in which signalling pulses may be received. Should any synchronizing pulses appear in an incorrect channel the output from the gate GB operates an alarm L.
Patent GB-1000246-A (GB)
Title: Memory arrays
IPC: G11C7/00
Filed: 1962-04-18
Abstract: 1,000,246. Matrix stores. WESTERN ELECTRIC CO. April 18, 1962 [April 24, 1961], No. 15005/62. Heading G4C. [Also in Division H3] Writing into a magnetic storage matrix is effected by coincident pulses of small amplitude, long duration, and slow time, while reading is carried out by high amplitude pulses of short duration, the write pulses being applied through low-pass filters, and the sense circuits incorporating high-pass filters so that the write pulses, due to their low-frequency harmonic content, are unable to block the sense amplifiers, and the read pulses, due to their high-frequency content, are unable to influence the write pulse generators. The arrangement enables a read operation to closely follow a write operation, or for reading and writing in the matrix to take place simultaneously. A matrix store of the " twistor " type as described in Specification 877,731 is shown in Fig. 1, the storage elements being constituted by discrete regions along magnetic conductors 10 having a helical flux paths 11, each region being defined by the intersection of a column conductor 9 with a magnetic conductor 10. A binary word is written into a selected magnetic conductor 10 by applying coincidence half-write pulses to one magnetic conductor 10 and selected column conductors 9. As the write pulses are essentially of low-frequency harmonic content, the column sense amplifiers 7 are each isolated by respective high pulse filters 8. Read out of a selected magnetic conductor is effected by a full switching pulse of opposite polarity which is applied by a read generator 14. As the read pulse is composed of high-frequency harmonics, the induced output in any column conductor due to field reversal of the adjacent portion of the energized magnetic conductor is able to pass to the associated sense amplifier 7 over a high-pass filter 8. The read pulse is without effect on the write pulse generators 5 and 12 due to the provision of lowpass filters 6 and 13. Annular cores 21 and a separate sense winding 20 are used in the second embodiment, Fig. 3. As previously described, half-write pulses are coincidently applied from write sources 26, 27 over low-pass filters 24 and 25 to record a bit in a selected core. Reading of any other core, even in a write-pulsed column or row, can take place simultaneously by applying coincidence half-read pulses having a highfrequency harmonic content from read source 28 and 29, since the sense amplifier 23 is connected by way of a high-pass filter 22 to the sense conductor and responds only to highfrequency stimulation.
Patent GB-671182-A (GB)
Title: Door opening means for use with a machine for peeling potatoes or the like
IPC: A23N7/02
Filed: 1950-06-16
Abstract: 671,182. Potato peelers. HARMER, E. Nov. 9, 1950 [June 16, 1950], No. 15018/50. Class 28 (ii). [Also in Group XXXII] The door 4 of a potato &c. peeling machine is automatically opened after a determined period to release the potatoes thus preventing more than the skin being rubbed away. The door 4 is swung to the left open position when released by a dashpot, by the action of a weight 15x at the end of a lever 14 pivoted at 15, the weight 15x acting through an arm 13, link 12, and arm 11 clamped on a shaft 5 which is thereby rocked to swing the attached door 4 away from the opening. The dashpot piston 18 descending slowly by gravity or spring pressure forces oil out of the cylinder 17 through a leak port 30 controlled by an adjustable needle valve 31. When the port 34 in the side of the hollow 33 in the piston 18 descends into register with a port 32 in the cylinder 17, the oil passes through freely and the piston 18 then descends rapidly. A plate 23, fixed on the piston rod 19, then strikes the end 24 of a pivoted latching lever 10 whereby recess 9 is raised out of latching position with the top of an arm 8 rigid with the shaft 5 thus allowing the weight 15x to pivot open the door 4 as above. During the fall of the weight 15x the end 25 of the lever 14 pulls up the piston rod 19, and so resets the piston in upper position, oil flowing freely back into the cylinder 17 through a bail valve 29. After removal of the potatoes the door 4 is closed by pressing down a hand lever 7 on the shaft 5 which is thereby rocked to swing the door shut, raise the weight 15x and swing the arm 8 so that its upper end slides along the latch lever 10 and finally engages in its end latching recess 9.
Patent GB-1456621-A (GB)
Title: Aironca inc air volume regulator for air conditioning systems
IPC: F24F11/75
Filed: 1975-04-11
Abstract: 1456621 Air distribution terminals AERONCA Inc 11 April 1975 [25 July 1974] 15084/75 Heading F4V [Also in Division F2] An air flow regulator in a distributing device of an air conditioning system has a pair of air foils 21, 22 which are pivoted at their leading edges and move with variations in upstream pressure to vary the flow gap between the opposed surfaces thereof. The air foils are interconnected by a central lever 25 and links 26, 27 and are biased apart over the central part of their movement by a spring 31 acting between the end of the lever 25 and a cam follower 33 moving over a fixed cam surface 34 and mounted on a link 32. The regulated flow valve is adjusted by a pair of gates 41, 42 having overturned ends 41a, 42a sliding in tracks 43, 44 and moved by a handle 50 acting via a screw 51 and nut 52 on a crank shaft 53 which rotates to actuate via links 55, 56, a central lever 45 connected via links 47, 48 to the gates. Alternatively the gates are moved by a thermostat controlling a pneumatic or electric motor.
Patent GB-295095-A (GB)
Title: Improvements relating to masts used in the transmission of high tension electric currents
IPC: E04H12/24
Filed: 1927-06-07
Abstract: 295,095. Berg, F. June 7, 1927. Posts, attachments for; systems of supporting cables and conductors.-The bracket arms for supporting high tension conductors are pivoted about a vertical axis so that differences of stress produced by abnormal conditions on the opposite sides of the posts are balanced by the conductors without the necessity for additional constructional provisions such as ties or struts. In the construction shown in Fig. 9, one or more arms e are mounted on the base of tubular members d adapted to swivel on spigots c. The arms are supported by ties f, f', and roller bearings may be provided on which the members d rotate. In a modification Fig. 5, the arms e are carried by a frame which has rollers g bearing on a ring h secured to the mast. Depressions h<1> detefimine the normal position of the arms. The ties supporting the outer ends of the arms are secured to a ring member similarly mounted.
Patent GB-382906-A (GB)
Title: Improvements in or relating to wood-boring tools
IPC: B27G15/00
Filed: 1932-05-27
Abstract: 382,906. Augers. WIEHAGEN, C., 9, Bergstrasse, Solingen Wald, Germany. May 27, 1932, No. 15117. Convention date, May 27, 1931. [Class 83 (iii).] An adjustable auger is characterized in that the cutter is in the form of a screw fitting into an inclined tapped hole in the body to which it is locked by a set screw. The cutter a, threaded into the shank of the tool b, is adjusted to cut different diameters by rotating it, for which a slot is provided in the end. The cutter is locked in working position by a set screw c passing through the shank and engaging a flat on the side.
Patent GB-1415665-A (GB)
Title: Rotary internal combustion engine
IPC: F02C5/04
Filed: 1972-04-04
Abstract: 1415665 Rotary I C engines - gas turbine plant D A KILLIP 4 May 1973 [4 April 1972] 15317/72 Heading F1G A rotary Internal Combustion engine comprises a rotor disc mounted on a shaft 12 and rotatably supported within a casing formed by a cup-shaped part 2 and a cover plate 10. A fan impeller 22 is also mounted on the shaft 12 and rotates within a casing 4 which is secured to the casing part 2, being formed with an inlet for an air/fuel mixture which enters as indicated by arrow A. The rotor disc is formed at its right-hand face with two circular recesses which define combustion chambers 8 and from which extend passages 36 in the form of discharge nozzles and which open out at the other face of the rotor disc. Three equi-spaced openings 28 are formed in the wall 2A of the casing 2 and three equi-spaced spark igniters 30A project through the wall 2A between the openings 28. Fuel/air mixture impelled by the fan 22 passes through an opening 28 into a combustion chamber 8. As the combustion chamber rotates past an igniter 30A the mixture is fired and the gases discharge through an outlet nozzle 36 into the space within the cover plate 10, the gases finally discharging through tangential outlets 46 as indicated by arrows C. The nozzles 36 are disposed tangentially so that the rotor disc is rotated by the discharging gases. The rotor disc is formed at its left-hand face with radial cooling fins 40 and cooling air is drawn through openings 44 in the cover plate 10 and discharges with the exhaust gases through the outlets 46. The combustion chambers carry liners 32 which engage against the inner surface of the casing wall 2A. The rotor disc is formed with raised arcuate lands 34 between the combustion chambers, the lands also engaging against the inner surface of the casing wall 2A.
Patent GB-1217038-A (GB)
Title: 3,4 disubstituted phenyl ethanolamines and method of producing the same
Inventor: PRATESI PIETRO
IPC: C07C67/00
Filed: 1968-03-29
Abstract: 1,217,038. Phenylethanolamine derivatives. P. PRATESI, A. LA MANNA and E. GRANA. 29 March, 1968 [1 April, 1967], No. 15338/68. Heading C2C. Compounds of the general formula (R,R<SP>1</SP> = H, C 1-5  alkyl, aryl, aralkyl; R<SP>2,3</SP> = OH, alkyl, alkoxy; R<SP>4</SP> = H, Me, Pr<SP>i</SP>, But) and their salts are prepared by catalytically hydrogenating a compound of the formula (R<SP>2,3</SP> = OH, alkyl, alkoxy, OCH 2 Ph; R<SP>5</SP> = Me, Pr<SP>i</SP>, Bu<SP>t</SP>, CH 2 Ph) in a chlorinated organic solvent, optionally followed by condensation with acetone under reducing conditions (when R<SP>5</SP> = CH 2 Ph) and/or salt formation. The preparation of the starting materials by the van Dyk and Moed reaction (R=H) or Grignard reaction (R = substituent) is described.
Patent GB-215608-A (GB)
Title: Improvements relating to heat and sound insulating walls
IPC: E04B1/74
Filed: 1923-06-12
Abstract: 215,608. Lindsay, H. B. June 12, 1923. Double walls. - A heat-insulating and sounddeadening wall comprises a hollow casing 1 of wood filled with an insulating material, such as kapok, that is supported by means of bars 3 carried at their ends on brackets 4 secured to the end walls. The bars are narrower than the width of the casing and are arranged on the opposing walls in staggered relation.
Patent GB-1216134-A (GB)
Title: Improvements in or relating to photosensitive compositions
Inventor: LEVINOS STEVEN
IPC: C08F2/50
Filed: 1968-03-29
Abstract: 1,216,134. Photopolymerization. GAF CORP. 29 March, 1968 [3 April, 1967], No. 15356/68. Heading C3P. A photopolymerizable composition comprises a monomer containing the grouping CH 2  = C < attached directly to an electronegative group, and a catalyst comprising (a) a diazonium compound which functions as an electron acceptor and has a peak absorption spectrum in the 260 to 325 millimicrons range, and (b) as photosensitive co-catalyst a complex ferric salt containing an electron-donating group, or a mixture of a single ferric salt with an organic polycarboxylic acid or salt, The composition may be used in the production of cathode-ray tube viewing panels. The exemplified compositions contain polyvinyl pyrrolidone, ethyl alcohol, hydrochloric acid, citric acid, water, zinc chloride, N,N<SP>1</SP>-methylene-bis-acrylamide, acrylic acid, ferric ammonium oxalate, ptoluene-diazonium chlorosincate, p-toluenediazonium fluosilicate, benzene-diazonium fluoroborate, 2,4,6-trimethylbenzene-diazonium hydrogen sulphate, and ferric ammonium citrate.
Patent GB-561113-A (GB)
Title: Improvements in piston pumps
IPC: F04B53/12
Filed: 1942-11-02
Abstract: 561,113. Reciprocating pumps. TURNER MANUFACTURING CO., Ltd. and GROVES, W. R. Nov. 2, 1942, No. 15369. [Classes 8 (i) and 102 (i)] A pump for liquids or gases comprises a handoperated two - armed lever E and a doubleacting differential piston C,with a relatively deep groove c<2> containing a shallower rubber packing ring K whereby the fluid passes the piston in one direction only. The piston C has an integral hollow piston rod c of half its cross-sectional area, the lower end of the rod forming a socket for the ball-end d of a connecting rod D pivoted to the short-arm e of the lever E, the bell-end d being secured in position by a retaining tube c<1>. The packing ring K is narrower than the groove c<2> which is connected to the upper and lower faces of the piston C by passages c<4>, c<3>. The inlet valve B rests on a rubber seating a.
Patent GB-770253-A (GB)
Title: Improvements in or relating to circuit arrangements for converting low voltages intohigh direct voltages
IPC: H02M3/338
Filed: 1955-05-27
Abstract: 770,253. Rectifying. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 27, 1955 [May 31, 1954], No. 15373/55. Class 38 (2). A circuit arrangement for converting a low voltage into a high voltage with the aid of a junction transistor 1 fed with a low voltage B and caused to self-oscillate by aperiodic feedback from a transformer 2 so that pulses of high voltage are produced across a winding 4 of the transformer 2, the pulses being supplied through a rectifier 6 to a load 7 which is decoupled by a capacitor 8 for the pulse frequency is characterized in that in order to facilitate the selfoscillation of the transistor a voltage source (as at 10) is included in the closed circuit comprising the transformer winding 4, the rectifier 6 and the capacitor 8, the voltage source having a polarity which is opposite to the pass direction of the rectifier 6. The voltage source may be the low voltage source B and in a second embodiment the transformer has only two windings, one of which is tapped. Specification 769,445 is referred to.