baber/WOPTO huggingface dataset:
Patent GB-755852-A (GB)
Title: Improvements in or relating to the production of gamma ferric oxide
IPC: C01G49/06
Filed: 1953-09-08
Abstract: Gamma ferric oxide powder is obtained by mixing ferrosoferric oxide of a particle size of 1 micron or less with an inert liquid, such as water, to form a slurry which is spread on a metal surface and thereafter heating, and if necessary cooling as the reaction proceeds, to maintain the metal surface between 100 DEG  and 350 DEG C. and to prevent the temperature of the oxide exceeding 450 DEG C., and finally removing the gamma ferric oxide so formed from the plate. The metal surface, preferably heated from below, may be aluminium, copper, chromium plated copper or stainless steel. The initial slurry layer is preferably less than 1/8 inch in thickness.  The ferrosoferric oxide may be obtained by heating iron oxalate or formate as in Specification 648,494 or by reducing alpha ferric oxide as in Specification 650,607.
Patent GB-249473-A (GB)
Abstract: 249,473. Capdeviolle, J. M. March 18, 1925, [Convention date]. No Patent granted (Sealing fee not paid). Watch holders.-In a watch holder of the kind comprising a rubber cup B with means for securing it in position, the flange of the cup is formed with a cut away portion or recess C for the passage and retention of the watch stem. The holder may be secured in position by a screw passing through a central hole in a metal plate A, or the cup may be formed with an integral band clip for attachment to a circular bar &c.
Patent GB-1517598-A (GB)
Title: Apparatus for depositing pulverulent substances on surfaces
IPC: B05B5/16
Filed: 1976-06-16
Abstract: 1517598 Powder supply system for spray gun INSTITUT FRANCAIS DU PETROLE 16 June 1976 [18 June 1975] 24955/76 Heading B2L Apparatus for powder spraying an object comprises (a) means 1 for disaggregating the pulverulent powder, adapted to subject it to a sudden pressure drop, and to deliver a fluid formed by the powder particles suspended in a carrier gas (b) a storage chamber 24 for said fluid which receives it from means (a) above, (c) means 23 for spraying particles of the fluid, being connected to chamber 24 through a pipe 37, and (d) means 32 to control the flow of fluid in the pipe. The apparatus is suitable for spraying PTFE powder, which tends to form agglomerates. Power is fed to hopper 12, which is vibrated and passes through a variable aperture gate valve to a horizontal chute which is also vibrated; it procedds to the funnel of apparatus 1, and on falling into the base of the funnel is subjected suddenly to a pressure drop caused by a venturi fed by pressurized air (pipe to left of 1); disaggregated powder is sprayed towards baffle 34 and falls into chamber 24. Chamber 24 is vibrated by means 36 and fed with fluidizing gas via 28 and porous membrane 25; fluid from the resulting fluid bed passes via outlet 31 to control 32. Control 32, described in detail in Fig. 3 (not shown) comprises a cylindrical channel of equal diameter to pipe 37, said channel being provided with two annular injector nozzles, one facing upstream and the other downstream; a source of gas supplies selectively the downstream injector to cause powder to flow to gun 23, or the upstream injector to cause powder flow to cease. Spraying may be electrostatic; the gas feed rates. and the nozzles both at means 1 and control 32 are adjustable.
Patent GB-753503-A (GB)
Title: Improvements in or relating to devices for heating and liquefying organic materials
IPC: B29C45/58
Filed: 1953-09-09
Abstract: 753,503. Electrically heated melting vessels. KINS, G. H. Sept. 9, 1953 [Sept. 10, 1952], No. 24983/53. Class 39(3). [Also in Groups V and XIII] A vessel 1 in which an organic material e.g. in the form of a powder, is liquefied, see Group) XIII,) for a subsequent moulding operation such as injection or die-casting, is heated by electric heating elements (not shown) embedded in the wall of the vessel or contained in passages 10 in internal ribs on the wall.
Patent GB-719693-A (GB)
Title: Loom with stationary weft supply
IPC: D03D49/46
Filed: 1950-10-14
Abstract: 719,693. Looms with stationary weft supply. ASPDEN, C. S. Oct. 10, 1951 [Oct. 14, 1950], No. 25098/50. Class 142(2) A loop of weft is inserted in the shed by a dummy shuttle, the weft being presented to the shuttle by a weft guide mounted on the slay and which moves upwardly and downwardly to lay the weft across the top of the shuttle. The dummy shuttle B has a hook that engages the weft A that passes from a stationary supply through a tube C on the slay and through an eye E on a rod E<SP>1</SP> that is raised and lowered by a rod E<SP>3</SP>, and springs E<SP>6</SP>, Ex. A rod F is moved towards and away from the front of the loom by a rod F<SP>4</SP> actuated by a cam F<SP>2</SP> and carries a brush G that engages the weft and draws it forward. After picking, the brush rotates and frees the weft. A member K, which may be a spring having a flexible core member, or may be a serrated strap, thread or wire, is moved downwards by a guide eye K<SP>3</SP> connected to the rod E<SP>3</SP>, The member K engages a slot D<SP>2</SP> in the slay and on its downward movement removes the weft from the shuttle hook. The ends of the weft loops may be cut or drawn aside by a suction nozzle. Patterns may be made by using different wefts. The dummy shuttle may be made of wood, metal or plastic.
Patent GB-1532293-A (GB)
Title: Pyroelectric vidicon targets and a method and machine for reticulating them
IPC: B24B19/02
Filed: 1977-06-14
Abstract: 1532293 Abrading DEFENCE SECRETARY OF STATE FOR 14 June 1977 [17 June 1976] 25243/76 Heading B3D [Also in Division H1] In the formation of a pyroelectric vidicon target, a pyroelectric platelet 31 is grooved by a cutting tool 19 having a series of parallel cutting ridges (23) (Fig. 1, not shown), the tool 19 and platelet 31 being supported by an inclined plate 7 provided with a reference shoulder 15 and the platelet 31 or tool 19 being supported by a shoe 33 abutting the reference shoulder and mounted on a linearly moveable rod 39. After a first series of grooves have been cut the platelet is turned through 90 degrees to cut a second series of grooves extending at 90 degrees to the first series.
Patent GB-997775-A (GB)
Title: Compositions comprising petroleum wax and copolymers of ethylene
IPC: C09D191/00
Filed: 1963-06-25
Abstract: A wax composition comprises a major amount of petroleum wax and a minor amount of a copolymer of ethylene with propylene and/or butylene-1, the copolymer having an ethylene content of less than 80 mol. per cent and an intrinsic viscosity as measured in decahydronaphthalene at 135 DEG  C. of at least 1.5 dl/g.  The copolymer may be partially replaced by one having an ethylene content of 80-95 mol. per cent.  The wax portion may consist of 40-60% of normal crystalline paraffin wax, 25% of heavy distillate wax, 5-20% of microcrystalline wax and 0-40% of plastic paraffin wax. Proportions of 55-85% wax and 45-15% copolymer are specified.  The composition may also contain filler, e.g. kaolin, pigments and/or other colouring matter. Specification 997,776 is referred to.ALSO:A wax composition comprises a major amount of petroleum wax and a minor amount of a copolymer of ethylene with propylene and/or butylene-1, the copolymer having an ethylene content of less than 80 mol. per cent and an intrinsic viscosity as measured in decahydronaphthalene at 135 DEG  C. of at least 1.5 dl/g.  The copolymer may be partially replaced by one having an ethylene content of 80-95 mol. per cent. The wax portion may consist of 40-60% of normal crystalline paraffin wax, 25% of heavy distillate wax, 5-20% of microcrystalline wax and 0-40% of plastic paraffin wax. Proportions of 55-85% wax and 45-15% copolymer are specified.  The composition may also contain filler, e.g. kaolin, pigments and/or other colouring matter. Specification 997,776 is referred to.
Patent GB-600448-A (GB)
Title: Improvements in or relating to the packing of safety razor blades
IPC: B65B25/00
Filed: 1946-08-24
Abstract: 600,448. Packaging-machines. FAIREST, Ltd., M., FAIREST, M., and DICKINSON, E. V. Aug. 24, 1946, No. 25345. [Class 94(i)] In a machine for attaching a razor blade 117 to a backing sheet 126 the sheet is flexed longitudinally and the pressed out tongues 176 pass through apertures formed in the blade, gripping it on the side remote from the sheet when the flexing pressure is released. Sheets and blades are removed from magazines 124 and 116 respectively by feed plates 131 and 113 and are each picked up by one of a number of suction heads 53 mounted on a cam-operated horizontally oscillating slide 21. The travel of the slide is such that the suction heads 53 pick up in turn a sheet and a blade and deposit them on an anvil 139 having a concave upper surface 140. Vertical movement of the suction heads is due to the tappets 69 of cam-operated rocker arms 66-68. The sheet is first pressed into the surface 140, being gripped there by hooked arms 155. Spring - loaded plungers 149 are forced upwards by the plunger head 171 to force up the tongues which pass through the apertures in the blade as it descends onto the anvil. Downward movement of the rod 170 trips the arms 155 and allows the blade and sheet to spring flat with the tongues gripping the back of the blade as the nozzle 53 is raised. The anvil is then tilted about pivots 143 depositing the sheet and blade onto a greased wrapper 187, which is folded over it by guide rails. The folded strip is then passed through rollers 200, 201 to a greasing device 218. Specification 600,443 is referred to.
Patent GB-532566-A (GB)
Title: Improvements relating to road vehicles steering mechanisms
IPC: B62D7/22
Filed: 1939-09-07
Abstract: 532,566. Steering-mechanism for motor vehicles. MORRIS MOTORS, Ltd., and ISSIGONIS, A. A. Sept. 7, 1939, No. 25365. [Class 79 (v)] Relates to steering-mechanism of the kind in which the steering shaft is connected to the road wheels through a rack and pinion. According to the invention, a frictional damping device is associated with the rack, and the steering shaft has torsional flexibility, in order to minimize the transmission of shock or vibrations from the road wheels to the driver. A pinion on the lower end of the shaft engages a rack a, Fig. 2, which slides in a housing b that prevents lateral movement of the rack relatively to the pinion. A plunger d is mounted at right angles to the housing and is pressed against the rack by a spring e. Both plunger and spring are contained in a hollow cup f which preferably screws into a boss g in the housing, the damping effect of the plunger being adjustable by means of the cups. The steering shaft h, Fig. 3, is attached by a coupling i to the spindle of the pinion, and the shaft is sufficiently flexible to minimize shocks. Lateral stiffness is imparted to the shaft by enclosing it in a tube l the upper part of which is secured to the boss of the steering wheel while the lower end is supported rotationally on a spigot m on the coupling i. The upper part of the tube is supported in a bearing n which may consist of a block of rubber or resilient material having a metal bush through which the shaft passes.
Patent GB-317733-A (GB)
Title: Process and apparatus for the optical compensation of picture movements in cinematograph apparatus
IPC: G03B41/10
Filed: 1929-08-20
Abstract: 317,733. I. G. Farbenindustrie Akt.- Ges., (Assignees of " Amfa " Apparatebau Ges.). Aug. 20, 1928, [Convention date]. Void Published under Sect. 91 of the Acts]. Kinematograph apparatus.-In continuousfeed apparatus, the film images are illuminated by a uniform cone of light from a condenser, in conjunction with an aperture moving with the film image. As shown, the film 1 is drawn by a sprocket 2 over a curved track 3, the sprocket being driven from a shaft 7 carrying a cam disc 15 which rocks a compensating mirror 4 through an arm 10. The light beam passes through a condenser 9 to the mirror 4 and lens 5; the surface of the condenser facing the film is curved so that lines joining the central point of the mirror and the central point of the image are normal to it in all positions of the image. A helical slot 14, in the curved wall 13 of a drum 6 mounted on the shaft 7, forms, with the longitudinal edges of an opening in the track 3, a film aperture which moves with each image. The slot 14 may be interrupted to provide shutter sections, and the axis of the shaft 7 is so placed that the parts of the edges of the slot forming the aperture are perpendicular to the remaining edges of the aperture. The disc 15 may be replaced by a groove in the disc 12 of the drum 6.
Patent GB-923421-A (GB)
Title: Process for the production of new derivatives of colchicines and thio-colchicines
IPC: C12P15/00
Filed: 1959-06-30
Abstract: The invention comprises new colchicine derivatives, C21H23O6N, m.pt. 176-8 DEG C., [a ]D25-196 DEG  \sB 2 DEG  (c = 1%, methanol) and C21H23O5NS, m.pt. 182-4 DEG , ([a ]D20-281 DEG  \sB 2 DEG  (c = 0.5%, methanol) and a process for the preparation of new colchicinic derivatives by subjecting a colchicinic compound of the general formula:- <FORM:0923421/IV(a)/1> in which R1 is a hydrogen atom or the grouping OR (where R is a hydrogen atom or an alkyl, acyl, or glycosyl radical), R2 is a hydrogen atom or an alkyl group, R3 is a hydrogen atom or an alkyl or acyl group, R4 is an O-alkyl, S-alkyl, or S(-->O) alkyl group, or the grouping -NR5R6 (in which R5 and R6 each either represent a hydrogen atom or a lower alkyl group) to the action of a well developed culture of Streptomyces, Fusarium, Saccharomyces, Curvularia, Corynebacterium, Cunninghamella, Aspergillus or Streptococcus micro-organisms for at least 24 hours. Particularly suitable compounds include colchicine, colchiceine, 2-demethylcolchicine, N-methyldesacetylcolchicine, their tropaminones, thio derivatives thereof, the sulphoxides of thiocolchicines and their corresponding N-desacetylated, N-alkylated and N-acetylated derivatives.  The process is preferably effected by introducing the colchinic derivative into a buffered aqueous suspension of a 30-72 hour culture of the microorganism at a pH between 5 and 8, isolating the new derivative by solvent extraction and purifying it by chromatography and crystallisation.  The process is illustrated by detailed examples.  The new compounds exhibit anti-mitotic activity and may be formulated with an inert solid or liquid carrier.ALSO:Anti-mitotic compositions for use in agriculture and horticulture comprise a colchicinic derivative prepared by subjecting a compound of the general formula:- <FORM:0923421/I/1> (in which R1 is a hydrogen atom or the grouping -OR where R is an alkyl, acyl or glycosyl radical, R3 is a hydrogen atom or an alkyl group, R4 is a hydrogen atom or an alkyl or acyl group, R1 is an O- alkyl, S- alkyl or S(-O) alkyl group, or the grouping -NR5R6, in which R5 and R6 each represent a hydrogen atom or a lower alkyl group), to the action of a microorganism from the class Streptomyces, Fusarium, Saccharomyces, Curvularia, Corynebacterium, Cunninghamella, Aspergillus, or Streptococeus, dispersed in a solid or liquid carrier.
Patent GB-646416-A (GB)
Title: A compound gas steam turbine
IPC: F01K23/10
Filed: 1948-09-30
Abstract: 646,416. Steam and gas turbine plant. JAMESON, J. L. Sept. 30, 1948, No. 25461. '[Class 110(iii)] A gas turbine D drives an axial-flow compressor B and a device G which converts the available power into heat which is given up to water admitted at H. The heated water or steam is passed to a flash boiler F where it takes! up the heat of the turbine exhaust and the steam is collected in a chamber L. Thence it passes to a steam turbine M providing useful power at a shaft T. A reverse-running turbine N may be provided.
Patent GB-481895-A (GB)
Title: Multi-speed lathes
IPC: B23B3/16
Filed: 1936-09-19
Abstract: 481,895. Lathes. HERBERT, Ltd., A., LLOYD, A. H., and TIPPLE, E. W. Sept. 19, 1936, No. 25500. [Class 83 (iii)] In a capstan or like lathe, having a turret mounted for step-by-step rotation on a manually-controlled reciprocatory slide, and a spindle driven by a multi-speed electric motor, the rotation of a speed-changing switch 8 is initiated by the sliding of the turret slide 13, independently of any rotary motion of the turret, either when the slide is being withdrawn or during an early part of the forward movement thereof. A shaft 21, which may be the selector stop-bar for limiting the movements of the turret slide, carries projecting fingers 14 at its end which are adapted to strike spring-pressed pins 10, on a carrier 9 fixed to the rotary switch shaft, on the backward movement of the turret slide. The switch shaft is rotated a limited amount controlled by the spring-pressed roller 15 and the star wheel 17, Fig. 2, fixed to the switch shaft. The fingers 14 ride over the bevelled ends of the pins 10, depressing the springs 11, on the return forward movements of the slide.
Patent GB-726809-A (GB)
Title: A new or improved seal for relatively slidable members
Inventor: REDMAYNE LEONARD
IPC: F16J15/32
Filed: 1952-10-11
Abstract: 726,809. Piston packing; stuffing-box substitutes. GIRLING, Ltd. Sept. 23, 1953 [Oct. 11, 1952], No. 25525/52. Classes 122 (1) and 122 (5). A seal for relatively slidable members, such as a piston and cylinder, comprises a rubber or like ring a of rectangular cross-section in its free state and received in an annular groove having a frusto-conical base c provided in the piston or cylinder, the depth of the groove at one end being substantially equal to the radial thickness of the ring and at the other end less than the radial thickness so that when the ring is positioned in the groove its outer surface is frusto-conical and projects beyond the piston or cylinder at one end. The end e of the groove is at right angles to the base and the end f may be radial or oppositely-inclined to the end e.
Patent GB-1537157-A (GB)
Title: High repetition frequency side-looking pulse radar system
IPC: G01S13/90
Filed: 1976-06-21
Abstract: 1537157 Sideways looking radar THOMSON-CSF 21 June 1976 [24 June 1975] 25736/76 Heading H4D A spacecraft (or airborne) mounted sideways looking radar requiring a high p.r.f. such that echo signals are not received for several pulse repetition periods, is provided with means for correcting range ambiguity introduced by, for example, relative motion between spacecraft and earth by using monopulse techniques to detect echo returns from targets situated along the radar antenna boresight and controlling the length of the pulse repetition period to maintain these echo signals at the mid-point of the pulse repetition period, whereby echoes not returned from targets within the non-ambiguous range zone are continually discriminated against. In Fig. 1(a) the antenna beam of vertical aperture #v illuminates the ground over an interval #Rs, corresponding to an area #Rg, Fig. 1(b), illuminated by the horizontal antenna aperture #h, which area becomes the strip T due to the motion of the spacecraft with velocity vector V and corresponds to the non-ambiguous distance interval bounded by marks Bn and Bn+1, which correspond to transmission time slots during which reception is not possible. Echoes emanating from the direction of the axis of the antenna are therefore received at the mid-point of a pulse repetition period n periods after transmission, where n is the number of ambiguous range intervals between radar A and illuminated area #Rg, that is, the number of distances C/2fr, where C is the velocity of light and fr is the pulse repetition frequency. In Fig. 2 antenna 1 has a sum # and difference # pattern as per a monopulse radar (Fig. 3, not shown). The transmitter 3 is coupled to the sum antenna pattern via circulator 2 and transmits a "chirp" pulse signal. The receiver 4 receives and converts to I.F. the sum and difference echo signals. The sum signals are then applied to conventional processing circuits which pulse compress the echo signals, perform the known correlation processing techniques and display or record the two-dimensional synthetic map so produced. The # and # signals are also supplied to a conventional monopulse combination circuit and the resulting quadrature signals are fed via limiters 8 and 9 to phase detector 10. Gate 11 receives the off-axis error signal information from phase detector 11 and is gated on by synchronizing circuit to select the signal # which represents the off-axis angular deviation of the echo at the mid-point of the contemporary pulse repetition period. Error signal # is applied through amplifier 12 and filter 13 to control the frequency of V.C.O. 14, which controls the p.r.f. from TX3 whereby error signal # is retroactively controlled to zero since the alteration in p.r.f. is arranged to retro-actively maintain the mid-point echo signal on axis as explained above.
Patent GB-624307-A (GB)
Title: Improvements in apparatus for delivering a spray of liquid
IPC: B05B9/08
Filed: 1945-10-04
Abstract: 624,307. Coin - freed spray producers. SALMON, L. G. Oct. 4, 1945, Nos. 25826/45 and 27554/46. [Class 27] [Also in Group XXXV] Compressed air for producing a scent or disinfectant spray is generated by the motion of a manually displaced pistin in a cylinder, the spray producer, which is connected by a flexible pipe being mounted on the inside of the door of the cabinet containing the pump mechanism. In the form shown, which incorporates a coin freed mechanism, a mannually operated lever 7 is pivoted at 8 on a supporting plate 6 and projects through a slot in the cabinet 1. On the other side of the supporting plate an arm 11, also pivoted at 8, carries a pivoted member 10 which, when tilted by a coin 21, Fig. 2, presents a nose 10a to a pin 12 projecting through a slot 13 from the lever 7. Depression of this lever thus also depresses the arm 11 which in turn rotates a drum 14 against an internal spring by means of a system of levers 16. When the lever 7 is allowed to return. to its position shown, the pawl 19 which holds the drum is tripped and the piston 5a moves up the cylinder to drive air along the flexible pipe 24 to the spraying device 4 the liquid being drawn from the bottle 3 and sprayed through an aperture in the door. A modification is described in which the piston is directly coupled to the operating lever without coin-freed mechanism.
Patent GB-510057-A (GB)
Title: Method for the production of oxalic acid by the oxidation of carbohydrates with nitric acid
IPC: C07C51/27
Filed: 1938-09-05
Abstract: 510,057. Oxalic acid. ZJEDNOCZONE FABRYKI ZWIAZKOW AZOTOWYCH W MOSCICACH I.W. CHORZOWIE. Sept. 5, 1938, No. 25898. Convention date, Sept. 8, 1937. [Class 2 (iii)] Oxalic acid is prepared by the oxidation of carbohydrates with nitric acid under reduced pressure and/or with simultaneous passing of gases, indifferent to the reagents, through or over the reaction liquid, which may be simultaneously boiled. In the examples molasses are oxidized with nitric acid in the presence of vanadium pentoxide (1) under vacuum or (2) with passage of nitrogen through the reactants. Nitric acid is added during the reaction.
Patent GB-294802-A (GB)
Title: Improvements in or relating to fur skins having cut out patterns thereon
IPC: C14B15/12
Filed: 1927-10-01
Abstract: 294,802. Waag, H. Oct. 1, 1927. Furs.-A device for producing cut-out patterns in furs comprises a template apertured according to the pattern to be produced which is moved past the cutting knife as the cutting of the fur progresses. The furs are secured to a traveling belt b by which they are conveyed to a cutter comprising a fixed blade c and rotary blades d. The template f is of resilient but sufficiently stiff material and may be in the form of a flat plate moved in guides g, during the cutting of the fur, by friction with the fur or belt or by gearing. A counter-balance i is provided which may be heavy enough to return the template after the cutting of a fur, or this may be effected by gearing. Alternatively, the template may be, as shown in dotted lines, in the form of a continuous band passing over guide rollers m and driven by a roll n.