baber/WOPTO huggingface dataset:
Patent GB-685081-A (GB)
Title: Improved anchoring device for insulated flexible electric cable
Inventor: ATKINS JOHN STUART
IPC: H02G3/06
Filed: 1950-08-10
Abstract: 685,081. Mechanical couplings for cable covering supporting cables. ALKALINE BATTERIES, Ltd. July 18, 1951 [Aug. 10, 1950], No. 19893/50. Classes 36 and 38 (i). An anchoring device for an insulated flexible cable c, Fig. 1, comprises a V- shaped member with inturned ends a adapted to embrace the cable, and a curved strip d adapted to be placed with its convex side against the cable and its ends under the inturned ends a so that when the arms of the V- member are bent closer together, the curvature of the strip is increased, whereby it exerts pressure on the cable either directly or through the intermediary of a curved guard-plate seating on the cable and which may be secured to the strip d. In a modification, Fig. 6, the V- member is deep enough to accommodate two or more cables f, g. The device may be located in a housing to prevent strain being transmitted to terminals therein, or, as shown in Fig. 6, the V-member may carry a lug i with a screw-hole therein whereby it may be attached to a wall.
Patent GB-780317-A (GB)
Title: Improvements in steam boilers and hot water boilers
IPC: F24H1/40
Filed: 1953-07-17
Abstract: 780,317. Steam and hot-water boilers. VORKAUF, H. July 17, 1953, No. 19912/53. Class 123(2) In a steam or hot-water boiler in which riser tubes 4, 5, 6 defining the walls of the combustion chamber are supported by a framework which is of substantially rectangular form and comprises unheated front and rear corner downcomers 1, 2 connected by upper and lower longitudinal and transverse headers 8, 9 and 10, 11 respectively, at least some of the intercommunicating downcomers and headers are welded together with their axes in different planes. As shown, the headers 8, 10 and 11 are eccentrically connected to the downcomers 1, 2 on the inner sides of the latter, and the headers 9 to the outer sides of the downcomers. In the case of a steam boiler, a steam-and-water drum 3 may be supported on the front downcomers 1 and provided with steam-collecting pipes 13, 13a leading, respectively, from the upper ends of the downcomers 2 and from a transverse header 12a connecting the headers 9. The rear wall tubes 6 are preferably branched at 7 and connected to sub-headers 7a extending rearwardly from a further transverse header 12 to which the front wall tubes 5 are connected.
Patent GB-867822-A (GB)
Title: Graft polymerisation process
Inventor: ROPER ALEC NORMAN
IPC: C08F279/04
Filed: 1960-06-07
Abstract: Graft polymers are prepared in aqueous emulsion by polymerizing a mixture of from 15 to 35 parts by weight of a vinyl cyanide and from 40 to 60 parts by weight of a vinyl aromatic compound in the presence of: (a) an aqueous latex containing 15 to 35 parts by weight of a preformed polymer containing at least 80% of a conjugated diene; (b) from 1,7 to 5 parts by weight per 100 parts by weight of monomer mixture of a C6 to C20 alkyl mercaptan; and (c) a radical addition polymerization initiator.  Vinyl cyanides and vinyl aromatic compounds specified are acrylonitrile and methacrylonitrile, and styrene, vinyl toluene, p-chlorostyrene and alphamethyl styrene; also present, in an amount not greater than 10% by weight of the vinyl cyanide-vinyl aromatic mixture, may be other monomers such as acrylic and methacrylic acids and methyl methacrylate.  Diene polymers specified are those of butadiene, isoprene and chloroprene, either alone or with one another or with piperylene, or in admixture with up to 20% by weight of acrylonitrile, methacrylonitrile, styrene, vinyl toluene or divinyl benzene. Polymerization initiators specified are heat, ultra-violet light, high-energy radiation, hydrogen peroxide persulphates, perbenzoates, peracetates, redox systems and aliphatic azo compounds.  The dispersing agent used may be of the cationic, anionic or nonionic type.  The resulting graft polymers are stated to possess good processing characteristics.
Patent GB-446051-A (GB)
Title: Improvements in resilient tyres having recesses under pressure and in the fitting up of these tyres on wheel rims
IPC: B60C7/12
Filed: 1935-07-12
Abstract: 446,051. Wheel tyres. PICARD, C. E. VEIL-, 1, Rue TrÚzel ProlongÚe, Levallois- Perret, Seine, France. July 12, 1935, No. 19932. Convention date, Aug. 16, 1934. [Class 144 (ii)] A rubber &c. tyre of the kind described in Specification 405,474, having inflated transverse cells 2, is formed with a base-portion which is adapted for use on ordinary wheel-rims and is reinforced by canvas &c. strips 17 extending to substantially the mid-height of the side-walls of the tyre.
Patent GB-744017-A (GB)
Title: Improvements relating to the packaging of articles, using packaging sheaths
IPC: B65B23/22
Filed: 1953-07-17
Abstract: 744,017. Sequential testing. DESHAW, Z., and ISMAY LAMPS, Ltd. July 17, 1953, No. 19959/53. Class 37. [Also in Groups XVII and XXX] A conveyer for transporting incandescent lamps past testing stations to a packaging device comprises a series of links 1 carrying removable sockets 11 for the lamps and contact pins 6 connected to springs 7 for engaging electrified rails during the conveyer's travel. The lamps are held in the sockets by arms 8 pressed inwardly by a rail adjacent the conveyer, carrying spring loaded pins 10. The arms 8 may be used to test for shorting between twin end contacts and the lamp cap. The sockets and rails may be adapted for single contact lamps. The lamps are sheathed at a packaging station (see Group XVII) and may be ejected by spring blades (not shown) passing beneath and pressing upwardly on the underside of the sheaths. Specification 744,040, [Group XVII], is referred to.
Patent GB-147948-A (GB)
Title: Arrangement for avoiding disturbing noises in listening devices caused by changing circuits associated therewith
IPC: H04M1/74
Filed: 1920-07-09
Abstract: 147,948. Signal Ges. March 20, 1917, [Convention date]. Subaqueous audible signals. - In systems in which a telephone 7 in the secondary circuit of a transformer 5, 8 can be connected by a switch 6 to any one of several microphones 1, 2, 3, clicking-noises in the telephone due to the switching-operations are prevented by a contact 16, 17, which short-circuits the telephone before the switch disconnects the first microphone and keeps it short-circuited until connexion has been made with the next microphone. In the arrangement illustrated, the short-circuiting contact is operated through levers 12, 14 by a cam disk 11 on the switch 6.
Patent GB-223682-A (GB)
Title: Improvements in watchmen's watches and the like
IPC: G07C1/20
Filed: 1923-08-04
Abstract: 223,682. Liewellin, W. M. Aug. 4, 1923. Watchmen's clocks. - In apparatus in which the station number and time is printed on a record-band contained therein a device is provided into which the workmen's key is inserted and a portion thereof surrounding said key is manually rotated to effect the printing and the advance of the record-band. The device as shown comprises two plates A, A<1> carrying the operating parts and suitably arranged in the clock casing in relation to the time-type wheels, inking-ribbon, and record-band. The plate A has mounted thereon a spring-controlled sliding member E and two toothed wheels B, B<1> for feeding the record-band and ink-ribbon, and detents C, C<1>. The plate A and member E are slotted as shown at G and the plate and member respectively have projections F, K, the projection F being provided with a rubber insertion P and the projection K with a slot through which the key Q passes. The member E is also provided with an anti-friction roller M. On the plate A<1> is mounted a rotatable knob T with a slot W shaped to the outline of the end of the key Q and provided with one-toothed disc V which is adapted on the rotation of the knob T to feed the record-band and ink-ribbon and to depress the sliding member E, through engagement with the roller M, to cause the surface P to press the band against the record surface of the key and the time-type wheels. The completion of a revolution brings the slot W ino coincidence with the slot G so that the key can be withdrawn.
Patent GB-875149-A (GB)
Title: Multi-phase electrical generators
Inventor: FORREST ROBERT HENRY
IPC: H03B27/00
Filed: 1959-06-11
Abstract: 875,149. Automatic phase control systems; transistor amplifier circuits. AVIATION, MINISTER OF. June 8, 1960 [June 11, 1959], No. 20009/59. Classes 40(5) and 40(6) In a multi-phase generator employing a transistor amplifier for each phase each amplified phase is stabilized in amplitude and phase by employing the vector difference of the input and a portion of the output of each amplifier as a control voltage which, after amplifying, may be injected into the output of the amplifier to reduce any amplitude or phase change. As shown one of three phases is taken from a transistor oscillator C 1 , T 1  of frequency, e.g. 400 c.p.s., by a phase splitting network C 2 , R 1  and amplified by pushpull transistor amplifier stages Q 3 -Q 8  also acting as limiters, but the final output from a tuned output stage W 5 , C 3  being sinusoidal, A fraction of the output voltage of the amplifier is compared with the input to the amplifier in a transformer T 6  whose output is normally zero but after amplifying forms pulses varying in duration and timing depending on amplitude or phase change in the main amplifier Q 3 -Q 8 , and after amplifying in auxilliary amplifier Q 3 <SP>1</SP>-Q 8 <SP>1</SP> is injected by transformer winding W 8  into the main amplifier output as a correction voltage. In a modification the auxiliary amplifier is dispensed with and a portion of the main amplifier output is applied as negative feedback to the amplifier input, to vary as and if necessary the width and timing of the rectangular wave output of the amplifier stages for phase and amplitude stabilization of the final sine wave output.
Patent GB-1463960-A (GB)
Title: Dot matrix printer
IPC: B41J2/515
Filed: 1975-05-13
Abstract: 1463960 Printers INTERNATIONAL BUSINESS MACHINES CORP 13 May 1975 [25 July 1974] 20012/75 Heading G4H A dot matrix printer includes a print head carrying a plurality (e.g. a column) of individual dot printing means to print data on a series of parallel print lines on a record medium movable relative to the head, and means to control the dot printing means to print dots of a series of columns transverse to the print lines, a full-size character requiring dot printing in both the two end print lines, the control means being operable to provide a shortened (in height) printed character by excluding dot printing for the character from one only of the two end print lines. Fig. 13 shows the column of dot printing wires 124a-124h, all used for a full-sized character, full-sized characters usually using 7 columns of dots and having a 3-column blank space between them, as indicated by the wording. Fig. 13 also shows two shortened characters "5" and "8" as part of the fraction "#", the two lowest lines not being used for the "5" and the two highest not being used for the "8" but the slash spans the "blank space" and intrudes into the normal character areas as shown. Successive 8-bit columns of data to control the print wires are read from a ROS print matrix table addressed with an address formed by concatenation and logical combination of the bits of a print option counter (i.e. a column counter), the output of a print line buffer and a signal indicating whether or not the system is in an intercharacter space in which a slash is required (a slash decoder responding to the output of the print line buffer). The record medium is a ticket or continuous strip of tickets, two print heads being provided side by side with their print wires in line acress the ticket/strip. Two print line buffers are provided, use of the ROS print matrix table being time-division-multiplexed between the two heads, which are dealt with in turn for each column of dots. A mieroprogramme control unit, using an ALU and main, local, external and control stores, is also described as a replacement for most of the electronics of the embodiment above. Information can also be recorded on the ticket(s) magnetically (and read for checking).
Patent GB-572455-A (GB)
Title: Improvements in and relating to the production of synthetic resins and of coating compositions derived therefrom
IPC: C08G8/30
Filed: 1943-12-01
Abstract: A synthetic resin is prepared by polymerizing at above 180 DEG  C the addition product from b -naphthol and maleic anhydride.  The ingredients may be reacted below 180 DEG  C. if desired by refluxing with a lower boiling liquid, e.g. butanol, xylol or xylol in admixture with glycerol and then heated for at least one hour at a temperature between 180 DEG  C. and 260 DEG  C. to bring about polymerization and to distil off water of reaction and other uncombined liquid.  The acid value of the resin may be reduced and its colour improved by esterification with one or a mixture of more than one mono- or polyhydric alcohol, which may be present during the resin formation.  The reactions may be performed in an inert atmosphere, e.g. of carbon dioxide.  In examples: (1) maleic anhydride and b -naphthol are mixed in molten condition and the temperature raised to 220 DEG  C. and maintained for 1/2 -1 hour. The product is soluble in acetone; (2) a resin is formed by heating together maleic anhydride, b -naphthol and glycerine.  It is soluble in acetone or acetone-butyl alcohol mixtures, is compatible with nitric-cellulose and plasticized with tricresyl phosphate.  Films may be formed from the butanol-acetone solution by spreading on a surface and air-drying or stoving; (3) an oil is formed from maleic anhydride, b -naphthol and ethylene glycol. The product is compatible with acetone and butanol.  Films from the oil dry on stoving at 140 DEG  C. for 1 hour; (4) an oil which is soluble in xylol is formed from b -naphthol, maleic anhydride and butanol; (5) an oil is formed by reacting a mixture of maleic anhydride, b -naphthol and glycerine and butanol.  It is soluble in xylols, the solution yielding a film when stoved; (6) an oil which sets to a gum is formed by refluxing maleic anhydride and b  - naphthol in presence of glycerol and xylol. The gum is soluble in acetone and butanol, and the acetone solutions tolerate xylol and yield films on stoving; (7) a mixture of maleic anhydride, b -naphthol, glycerol and butanol was refluxed in carbon dioxide for 3 hours, butanol and water were distilled off and the residue heated to 230-240 DEG  C. for 1 hour, cooled to 140 DEG  C. and mixed with xylol to give a varnish containing 80 per cent resin; (8) maleic anhydride, b -naphthol and glycerol were heated in carbon dioxide with distillation of water.  The mass is cooled to 120 DEG C. and butanol added with stirring.  Cloudiness is cleared by addition of acetone; (9) maleic anhydride, b -naphthol, glycerine and butanol were refluxed for 5 hours.  Butanol and water are then removed by distillation in an atmosphere of carbon dioxide, and the residue heated at 240 DEG  C. for 3 hours.  The mass is cooled to 140 DEG  C. and xylol added to form a varnish.
Patent GB-1044642-A (GB)
Title: Process and apparatus for removing water from coal slack
IPC: B01D33/21
Filed: 1964-05-14
Abstract: 1,044,642. Filters. HARPENER BERGBAUA.G. May 14,1964 [May 16,1963],No.20154/64. Heading B1D. Coal slack and the like has its water content removed by rotating a drum or disc filter, with a sub atmospheric pressure within the filter, through a bath containing a sludge of coal slack so causing some slack to adhere to the circumferential surface thereof and undergo water removal as the filter rotates, the slack on the filter also being treated by steam at between 1.2 and 1. 5 atmospheres and between 120‹ and 135‹C. The steam penetrating the slack reaches condensation point directly above the filter. The steam is introduced through a connection 5 into a hood 4 which is arranged above the filter further from the feed side than from the side where the sludge is drawn off by scrapers 7. The slack is therefore preliminary drained in the zone B before passing into the steam treatment zone C. When the filter comprises a plurality of discs mounted on a hollow axle 9, (Fig. 3, not shown) a hood covers each disc and steam distributing chambers 14 are formed and provided with steam through connection 15. The steam passes on to the slack on each individual disc through holes in a sector displaced in direction of scrapers 17.
Patent GB-667558-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/18
Filed: 1950-08-15
Abstract: 667,558. Razors. FAHMI, R. Aug. 15, 1950. No. 20240/50. Class 30. In a safety razor a double-edged wafer blade 4 is flexed between the concave face 10 of the head 1 and a guard 8, the edges of the guard being plain bevelled at 11, 12 to recede from the edges of the blade and one edge of the guard is provided with terminal teeth 13, 14 and narrower, equally spaced central teeth 15, 16, 17 and the other edge of the guard is provided with terminal teeth 18, 19 and one narrower central tooth 20. The teeth project beyond the edge of the blade to prevent injury to the face during shaving but allow faster shaving than the normal guard with a continuous row of spaced teeth. Hair and soap pass freely over the bevelled edges of the guard so that the razor may be cleaned without dismantling.
Patent GB-1305303-A (GB)
IPC: H04R19/04
Filed: 1970-04-28
Abstract: 1305303 Microphones AKG AKUSTISCHE U KINO-GERATE GmbH 28 April 1970 [30 April 1969] 20285/70 Heading H4J A capacitor microphone capsule 2 may be detachably mounted directly on an amplifier 1, or indirectly through an attenuator unit 3, as desired. A pin 10 on the microphone 2 connects electrically with socket 9 or 9<SP>1</SP>. Plug 8, which may be screw-threaded, co-operates with socket 7 or 7<SP>1</SP>. The attenuator may be merely a capacitor shunting the microphone capacitance, the pin 5 and socket 9<SP>1</SP> forming an unbroken line. Alternatively, the attenuator is an R.C. circuit printed on a replaceable disc 6 and electrical connection between the socket 9<SP>1</SP> and plug 5 is interrupted by an insulator 11. The attenuator unit 3 may be marked to indicate whether attenuation is variable with, or independent of, frequency. To this end the attenuator housing may be painted, have a coloured plastics cover or be silver-plated, goldplated or anodized.
Patent GB-756804-A (GB)
Title: Cam-operated electric switch
IPC: H01H19/62
Filed: 1954-07-12
Abstract: 756,804. Switches held set and freed mechanically. NAIMER. H. July 12, 1954 [Aug. 5. 1953], No. 20373/54. Class 38(5) The switch of Specification 710,788 is modified in that the contact bridge 15 has, a forked part 42 engaging a pin 41 carried by an extension 40 of the member 8, the ends of the pin 41 being guided in the recesses 20 in the casing 1.
Patent GB-1338117-A (GB)
Title: Plastics thermoforming machine
IPC: B29C51/18
Filed: 1971-04-19
Abstract: 1338117 Sheet forming KOEHRING CO 19 April 1971 [27 Jan 1970] 20377/71 Heading B5A A sheet forming apparatus comprises an oven O having banks of heaters (135), Fig. 13 (not shown), disposed above and below a sheet P, the oven being adjustably supported independently of a main frame F on rails 132, to heat the sheet before it is passed to moulds M1, M2, by incrementally movable spiked chains C whose relative lateral position can be adjusted, the upper mould M1 being connectable to a source of vacuum, and the lower mould M2 to a source of pressure, the moulds being relatively movable by fluid cylinders 49 and 80 supported respectively on cross-members 48 and 43 and locked by toggle mechanisms 66, and the position of the member 48 can be adjusted by a screw-andnut mechanism 46a actuated by a hand wheel 64 to allow precise location of the upper mould in its closed position.
Patent GB-930138-A (GB)
Title: Improvements in apparatus for mixing hot and cold liquids
IPC: F16K31/365
Filed: 1959-06-15
Abstract: 930,138. Fluid-pressure servomotor control systems. R. LEDUC. June 15, 1959 [June 20, 1958], No. 20423/59. Class 135. Hot and cold liquid mixing apparatus in which the temperature of the mixed liquid is maintained substantially constant, comprises needle valves 6, 7, Fig. 1, located in separate hot and cold liquid supply ducts 2, 3 respectively and connected to a common operating piston 9 slidable in a cylinder 49 so that when one valve is closed the other is opened. The piston 9 is under the control of a slide valve 39, Fig. 2, slidable in a housing 21, having a connection 10 receiving operating liquid from a selector chamber 13 selecting from upstream of the valves 6, 7 the liquid which is at the higher pressure, connections 10a, 10b to opposite ends of the cylinder 40 and connections to a common drain outlet 24. The slide valve 39 is connected to a diaphragm 17 whose opposite sides are subjected to the pressures downstream of the valves 6, 7 transmitted through ducts 14, 15 respectively. On, e.g. an increase in pressure downstream of the valve 6 the diaphragm 17 and slide valve 39 move rightwardly to supply liquid to the left-hand end of the cylinder 40 and expel it from the righthand end so that the piston 9 moves to decrease the opening of the valve 6 and increase the opening of the valve 7 to equalize the pressures in the ducts 2, 3 downstream of the valves. The amount of liquid discharged from a mixed liquid outlet 8 is controlled by a cock 23 which also controls the amount of liquid passing through the drain outlet 24 and the temperature of the mixed water may be further controlled by a manually-adjustable doubleheaded valve 43, 44. The movement of the piston 9 is also hydraulically damped to avoid " hunting " by the fitting of a calibrated restriction 25 in the connection 10b, the pressures on the opposite sides of the restriction being applied to the opposite sides of an auxiliary diaphragm 28 connected to the slide valve 39. In a modification, a further diaphragm, elastically returned to its neutral position by springs is fitted in parallel with the auxiliary diaphragm 28 to correct, it is stated, phase delays. In a further modification, the auxiliary diaphragm and the further diaphragm are replaced by a single diaphragm, the damping of the piston and the phase delay being accomplished by a system of springs between the single diaphragm and the slide valve. In another embodiment, the damping of the piston is achieved by fitting a restriction between one or other of the supply ducts 2, 3 downstream of its needle valve and a cylinder in which moves an auxiliary piston connected to the piston 9. The outlet from this cylinder is then connected to one side of the diaphragm 17. The other side of the diaphragm being connected to the other of the supply ducts downstream of its needle valve.
Patent GB-737763-A (GB)
Title: Improvements in rubber mixtures containing acid fillers
IPC: C08K5/17
Filed: 1953-07-23
Abstract: Mixtures of light-coloured fillers of acid reaction, e.g silica from silicic acid, alumina and acid bentonites, with synthetic rubbers exemplified by copolymers of butadiene and styrene or acrylonitrile, polymers of chloroprene and copolymers of butadiene or isoprene and isobutylene contain a secondary amine having a branched alkyl, hydrogenated aromatic or benzyl radical and of basicity not substantially less than that of dicyclohexylamine, e.g. dicyclohexylamine, N-ethylcyclohexylamine, benzylcyclohexylamine, tetrahydronaphthylisoamylamine, dibenzylamine, perhydroquinoline, decahydroisoquinoline, perhydrocarbazole, diisobutylamine.ALSO:Rubber mixtures containing light-coloured fillers of acid reaction such as silica from silicic acid, alumina and acid bentonites contain also a secondary amine having a branched alkyl, hydrogenated aromatic or benzyl radical and of basicity not substantially less than that of dicyclohexylamine, e.g. dicyclohexylamine, N-ethylcyclohexylamine, benzylcyclohexylamine, tetrahydronaphthylisoamylamine, dibenzylamine, perhydroquinoline, decahydroisoquinoline, perhydrocarbazole, diisobutylamine.  Other basic vulcanization accelerators, e.g. hexamethylene tetramine, diphenylguanidine and di-o-toluylguanidine, may be added.