baber/WOPTO huggingface dataset:
Patent GB-248548-A (GB)
Title: Improvements in or connected with shop windows, show cases and the like
IPC: A47F3/00
Filed: 1925-02-21
Abstract: 248,548. Pritchard, J. Feb. 21, 1925. Showcases.-A movable tray or platform 4 in a show case &c. is adapted to be withdrawn by a weight 15 on breakage of the glass. The tray is carried by rollers on rails 9 and part of the roller-carrying brackets 5 embraces the rail. A bolt 12 secures the tray to the glass on breakage of which the tray is withdrawn and tilted by the cord 13 and attached weight. In a modification, the tray is retained by means of a hook on a pivoted lever which is actuated to release the tray by breakage of the glass. The lever is pivoted by a collar on a glass rod fixed to brackets &c. on the frame.
Patent GB-687227-A (GB)
Title: Improvements in or relating to the dyeing of human hair
IPC: A61Q5/06
Filed: 1951-02-28
Abstract: Human hair is dyed at a moderately raised temperature with an aqueous suspension of a synthetic organic dyestuff which does not oxidize on exposure to air and which is soluble in acetone or ethyl acetate.  A thickening agent such as ammonium polyacrylate may be present.  The dyeing may take place at 40 DEG  to 55 DEG  C. and at a pH value below 8.  Suitable dyestuffs are the dispersed dyestuffs of the following types-aminoanthraquinones, alkylaminoanthraquinones, aminohydroxyanthraquinones, alkylaminohydroxyanthraquinones, azo dyes containing a nitro and/or alkanol group, and nitrodyestuffs.
Patent GB-333522-A (GB)
Title: Improvements in or relating to the electrical transmission and reception of pictures and other representations
IPC: H04N1/23
Filed: 1929-02-13
Abstract: 333,522. Fulton, O. Feb. 13, 1929. Copying-telegraphs. -A copying-telegraph. receiver comprises a picture-tracing device 22 and a record-cutting device 21 and means for operating either from the received signals at will. Two rotating drums 10 co-operate respectively with the devices 21, 22 and a switch 25 connects the signals to either or both devices. By connecting the devices in parallel by the switch a picture may be produced on the lower drum corresponding to the recorded signals on the upper drum. According to a modification, a single drum is used, and the devices 21, 22 are mounted on a carrier so arranged that either device can be brought into operation (Fig. 1, not. shown).
Patent GB-597631-A (GB)
Title: Improvements in or relating to self-regulating motor generator sets
IPC: H02P11/00
Filed: 1944-03-16
Abstract: 597,631. Rotary converters; regulation. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 16, 1944, No. 4917. Convention date, May 16, 1941. [Classes 35 and 38 (iv)] A motor alternator set 4, 1 run from a battery 6 or other variable voltage source, has its excitation automatically controlled from the A.C. side of the set in such a manner as to stabilize the output frequency and voltage. The motor has a main shunt winding 7, a differential compounding winding 10 fed from the A.C. side through a current transformer 38 and rectifier 19, ,and a cumulative winding 9 energized by the.A.C. volts over a rectifier 17 and saturable reactor 21, the saturation of which is dependent upon the difference between the battery volts and an opposing voltage derived from the A.C. volts by a transformer 31 and rectifier 18. By these means the motor speed is rendered independent of changes of battery volts and alternator load current. The main excitation for the alternator is provided by a winding 12 energized by the battery, and fall of output voltage with increasing load is avoided by a cumulative winding 15 carrying the motor current. Preferably, a differential winding 14, in parallel with the motor winding 9, also excites the alternator to reduce variations of excitation of the latter with varying battery volts. Variation of resistance of -the motor shunt field 7 with temperature is compensated by a thermal device 42 which cuts out a portion of a rheostat 8 when the field reaches a predetermined temperature.
Patent GB-646028-A (GB)
Title: Improvements in or relating to means for obtaining a reciprocatory movement for grinding, lapping or polishing machines
IPC: B24B47/16
Filed: 1947-02-20
Abstract: 646,028. Grinding and polishing machines. TAYLOR, D. Feb. 20, 1947, No. 4924. [Class 60] [Also in Group XXIX] Means for effecting axial reciprocation of a rotating member of a grinding, lapping or polishing machine comprises a member mounted to rotate and reciprocate having a piston thereon which is mounted in a cylinder, means for intermittently applying liquid pressure on one side of the piston to force the piston in one direction and means for applying spring pressure to the piston for returning the piston in the intervals between the application of liquid pressure. As shown, toric lens runners 6 are driven by a belt (not shown) and pulley 7. On the shaft 5 of the runners is a piston 8 working in a cylinder 1. The arrangement is duplicated at the right hand side of the cylinder the parts at the right hand side not being shown in the Fig. At each end of the cylinder is a spring pressed member 11 having ports 14 which co-operate with ports 13 in the piston. Liquid under pressure is applied at a port 15. Each time a port 13 in a piston registers with a port 14 in the member 11 the space between the pistons is connected to exhaust at 16 and the springs force the pistons towards the middle of the cylinder. The ports 13, 14, are distanced apart so that the rotation of both pistons must have a period when all the ports are closed in both pistons to allow pressure to build up and both pistons will be moved outwardly against the springs 12. If any one set of ports 13, 14 on either side of the cylinder register with one another both pistons will move inwardly and the speed of movement and the stroke of the pistons will vary according to the number of ports open in either or both pistons. If one piston is rotated at a speed slightly faster than the other piston a variable total port opening will be obtained so that the stroke of the pistons will vary. The pistons reciprocate the shafts 5 and runners 6. Fig. 3 shows a toric lap 20 acted on through pins 22 with conical ends by a spring pressed member 21. A catch 24 holds the lap tool in a withdrawn position.
Patent GB-666889-A (GB)
Title: Improvements in or relating to regenerative heater exchangers
IPC: F28D19/04
Filed: 1949-02-23
Abstract: 666,889. Engine valve-gear. TERRELL, B. J., YATES, H. G., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Feb. 17, 1950. [Feb. 23, 1949] No. 4975/49. Class 122(ii). [Also in Groups XIII and XXIX] In a fluid-pressure motor which intermittently rotates a shaft a carrying the matrix of a regenerative heat exchanger (see Group XIII), a piston t is reciprocated by the pressure of oil or air applied alternately to its upper and lower surfaces through pipes v, w under control of the valve x with two pistons y. With the valve pistons in the position shown, the piston t moves downwardly, and a pawl q carried by the piston rod s engages and moves the chain p engaging a sprocket k on the shaft a. The shaft a rotates until a projection n, on a disc m which the shaft carries , engages a pin 10 on a lever 9 pivoted on a toggle bar 6, which is rotated about its pivot 7 so as to move the pistons y upwards until fluid is supplied to the lower side of the piston t. The piston t then moves upwardly, with the pawl q disengaged from the chain p, until the rod r engages the lever 12. This, through the rod 11, rotates the lever 9 so as to free the pin 10 from the projection n and then moves the toggle bar 6 and pistons y back to the position shown, for the cycle to start again. Non-return valves 14, 15 and adjustable byepass valves 16, 17 in the pipe v, w enable a quick drive stroke and slow return stroke to be obtained.
Patent GB-105912-A (GB)
Title: Improvements in Compounds for use in lieu of Rubber.
Inventor: FLINT JOHN
IPC: C08L89/00
Filed: 1917-04-10
Abstract: 105,912. Flint, J. March 21, 1916, [Convention date]. Plastic compositions containing gelatine, glycerine, sugar, &c, with or without india-rubber &c. -A substitute for rubber is made from a mixture of, for example, 24 parts of gelatine or glue, 28 parts of glycerine, glucose, or treacle, 10 parts of water, 8 parts each of rubber, zinc white, and diatomaceous earth or whiting,. 5 parts of sulphur, 3¢ parts of calcined magnesia, 2¢ parts of litharge, 2 parts of formaldehyde, bichromate, tannin, or like toughening-agent, and 1 part of colouring-matter. Calamine, pontanac, asphalting, coal tar or pitch also may be added. The mixture is subsequently moulded and vulcanized. It may be used as an inner core for tyres, for electric insulation, tilings, roofings, etc. The Specification, as open to inspection under Section 91 (3) (a) describes the employment of the coal tar, pitch, or like softening agent as substitutes for the gelatine or glycerine. This subject-matter does not appear in the complete Specification as accepted.
Patent GB-645436-A (GB)
Title: Improvements in radio telegraph transmitting systems
IPC: H04L27/12
Filed: 1948-02-20
Abstract: 645,436. Frequency modulation. WESTERN ELECTRIC CO., Inc. Feb. 20, 1948, No. 5100. Convention date, July 21, 1944. [Class 40 (v)] The two radio frequencies required in a frequency-shift telegraph system are derived as the sum and difference frequencies of a high carrier frequency and a low frequency, these frequencies being applied in predetermined phase relation to four double-grid valves arranged as two pairs of balanced modulators. Keying is effected by reversing the phase of the low frequency applied to one balanced modulator pair, which has the effect of changing the output frequency from the sum to the difference or vice versa. The high frequency from source 24 is applied in phase opposition to the inner grids of the valves 22, 23 forming the first balanced modulator, and is also applied through a quadrate phasing network 26 in phase opposition to the inner grids of the second balanced modulator valves 16, 17. The low frequency from the source 10 is similarly applied to the respective outer control grids of the valves 16, 17, 22, 23. Owing to the quadrature relationship of the inputs, the output frequency taken in parallel from the four anodes comprises either the sum or the difference frequency. A telegraph key 1 applying either positive or negative voltage to the lattice network of rectifiers 8, 9 reverses the phase in the transformer 19 feeding the low frequency to the valves 22, 23 and causes the output frequency into the aerial 35 to change over from the sum to the difference or vice versa. Balance of the modulators is produced by adjustment of the screen-grid potential dividers 38, 40.
Patent GB-1533095-A (GB)
Title: Device for the application of chemicals to field crops and/or other plant concentrations
IPC: A01M21/04
Filed: 1977-02-08
Abstract: 1533095 Applying liquids to plants by contact J A McKIRDY 8 Feb 1977 05126/77 Heading A1E Liquid chemical is supplied to the surfaces of plants by contact with tubes 27, 28 on which a film of the liquid chemical is maintained by supplying it via hose 30 from a tank 22, the tube assembly 26 being movable up and down on pivoted links 23 by hydraulic rams 27A and being angularly adjustable about pivot 38 by means of arcuate brackets 39. Each tube 27, 28 may be formed of a porous material, or comprise a drilled tube covered with porous material. Each tube 27, 28 may be rotatable about its own axis.
Patent GB-895002-A (GB)
Title: Improvements in and relating to high vacuum ion pumps
IPC: H01J41/20
Filed: 1959-02-13
Abstract: 895,002. Ion pumps. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Feb. 13, 1959 [Feb. 13, 1958], No 5142/59. Class 39 (1). In a magnetron-type ion pump having an annular discharge space between an anode and a hollow cathode, the cathode is apertured for the passage of ionised gas particles. In the arrangement shown, an anode structure 13 provided with cooling fins 14 has a cylindrical surface 11, surrounding a cylindrical cathode 12 preferably consisting, at least at its surface, of secondary electron emitting material and formed by bars 15 the ends of which are inserted in radial rests in support rings 16 and 17 which also carry electron reflecting shields 18 and 19. Gas entering an inlet port OP passes between three supporting arms (of which two, 23 and 24, are shown) of a conical auxiliary electrode 22 which is maintained at a positive potential and deflects ions arriving inside the cathode 12 to an outlet port OP where they are collected on the wall of a pipe 20 which provides connection to a primary pumping system or on a separate electrode provided for the purpose. Magnet poles N and S provide an axial magnetic field. A ceramic ring 21 closes one end of the cathode and insulates the auxiliary electrode 22 from the cathode. The anode 13 may be provided with cavities as in a conventional magnetron. A getter means may be provided instead of or in addition to the primary pumping system and Figs. 3 and 4 (not shown) illustrate two arrangements in which the gas particles are completely removed by gettering so that the outlet port OP is dispensed with and the auxiliary electrode 22 is replaced by a hollow cylindrical electrode located inside the cathode and having a gettering surface of tantalum, which is also a secondary electron emitter, or alternatively of titanium. In one arrangement an auxiliary thermionic cathode co-operating with the anode, and in the other arrangement an auxiliary electrode co-operating with a sharp ridge on the main cathode, is provided for starting purposes. The main electrode system may be energised by D.C. or by A.C. or by pulses. An alternative form of apertured cathode may be produced by winding one or more conductors in spaced helical turns.
Patent GB-596870-A (GB)
Title: Method of carrying out reactions in the presence of solid contact material
IPC: B01J8/18
Filed: 1945-03-01
Abstract: <PICT:0596870/III/1> In gas phase reactions particularly oil cracking processes carried out in the presence of solid contact material which is regenerated after use, the contact material of a size retained on a hundred mesh screen but having particles not larger than about 15 mm. in diameter is moved as a descending compact bed through both the reaction and regeneration zones and in a fluidised state outside the zones while being raised from a lower to a higher level.  In the apparatus shown, hydrocarbon oil from tank 1 passes through a heat exchanger 4 and a furnace 6 to the reactor 8 where it meets a descending bed of contact material 9 at a temperature of 800 DEG -1150 DEG F.  Cracked vapours pass through line 10 to a fractionating system from which a residue is removed at 12, a heavy naphtha fraction at 14, a light naphtha fraction at 18, and hydrocarbon gases at 19.  The contact material leaves the reactor via stripping zone 20 and is carried in the fluidised state through line 23 to the regenerator 29.  Oxygen-containing regeneration gas enters at 30 and 31 and leaves by line 32, passing to a cyclone separator 33 for recovery of contact material.  Regenerated contact material returns to the reactor through a stripping zone 36.  Excess heat of regeneration may be removed by heat transfer means arranged in the regenerator.  In a modification, Fig. 2 (not shown), the reactor and the regenerator are arranged on the same level and the contact material is passed from the regenenator to the reactor in the fluidised state.  In another modification, Fig. 3 (not shown), the contact material passes through two reaction zones in which a heavy naphtha and a gas oil, obtained by fractionation of crude oil, separately cracked; the reaction zones may be arranged above one another or at the same level.  The process may be used for the catalytic conversion of hydrocarbons in the presence of activated clays or synthetic gels, which may be in the form of pellets or spheres. Synthesis of hydrocarbons from carbon monoxide and hydrogen is effected at 390 DEG F using an iron group metal on kieselguhr catalyst activated with thorium or magnesium; wax is removed from the catalyst in the regeneration zone by treatment with a hydrocarbon gas or vapour.  Specification 558,946 is referred to.
Patent GB-119407-A (GB)
Title: Improvements in or relating to Sparking Plugs.
IPC: H01T13/46
Filed: 1918-03-23
Abstract: 119,407. Soc. Generale des Huiles et Fournitures Industrielles l'Oleo. Oct. 15, 1917. [Convention date]. Sparking-plugs.-The insulator is retained by an open or closed metal ring a.
Patent GB-577646-A (GB)
Title: A new or improved puzzle apparatus
IPC: A63F9/10
Filed: 1944-03-21
Abstract: 577,646. Puzzles. BROWN, W. March 21, 1944, No. 5243. [Class 132 (iii)] A puzzle comprises a recess' of the shape shown adapted to receive eleven squares 2 and three oblongs 3 which may be arranged in any order and slid parallel to the sides of the box to bring them into a predetermined order.
Patent GB-305830-A (GB)
Title: Improvements in toy building elements
IPC: A63H33/10
Filed: 1928-02-20
Abstract: 305,830. Benjamin, W. R. Feb. 20, 1928. Mechanical constructions, details for building up.-A toy building element comprises a U-shaped clamp, Fig. 3, having an opening in each of its two arms through which a rod 7 is adapted to be held loosely, a screw 8 passing through a perforation in the base of the clamp to engage another rod 7 by means of its thread. This clamp is described in conjunction with the known clamp, shown in Fig. 2, for building up various toy structures, the clamp in Fig. 2 comprising a U-shaped member 1 with a screw 5 which presses the rods 7 one against the other. The wheelbarrow shown in Fig. 6 comprises a series of joints as shown in Fig. 2 in which the rods 16, 18, 19 are secured together by screwed pins 5, and a wheel shaft 17 that is loosely mounted in the clamps constructed as shown in Fig. 3, the screws 8 penetrating the rods 16. A modified loose joint for a rod 7 is shown in Fig. 7, the screw 8 engaging in the end of the other rod 7.
Patent GB-250368-A (GB)
Title: Improvements in containers for toys and the like
IPC: A63H33/00
Filed: 1925-02-26
Abstract: 250,368. Foster, I. M. Feb. 26, 1925. Mechanical and like toys; detonating toys.- A box or container for toys is in the form of Santa Claus or other mythical figure and has an internal plate, &c., which, when the lid of the box is opened, rises and lifts the contents of the box to display same; means are also provided to prevent movement of the contents relatively to the plate &c. as the latter is raised. As shown the plate d, which may have upstanding walls d<1>, is secured to a rod c<2> provided at its lower end with diametrically opposed projections which normally engage under lips a<4> on the bottom of the box; the upper end of the rod c<2> carries a button c having detents c normally engaging lips a<2> on the two parts a<1> of the lid to hold them closed. By depressing the button c and rod c<2> against the action of a compressed spring e arranged between the plate d and the bottom of the box a, the parts of the lid are released and upon turning the rod to release the projections from the lips a<4>, the spring e raises the plate d and renders the contents of the box accessible; the contents are retained on the plate by a covering of paper &c. or by strips of material. The lid parts may be spring hinged and stops a<6> may limit their outward movement. The lid may be fastened by a device comprising two overlapping parts adapted to receive a detonating substance which is exploded when the two parts of the fastening are drawn apart; the lid may be hinged to the box by a pin comprising two similar overlapping parts. Toys may be suspended from arms, c<4> on the rod and the inside of the box may be roughened to retard the upward movement of the plate. The rod may be arranged within a tube carrying arms and trays for holding toys etc.; the hand or other part of the figure may be arranged to hold the lid closed and the plate in its depressed condition. The lid may be in one place and held by a removable pin, spring catch or bayonet joint.
Patent GB-1400122-A (GB)
Title: Doppler radar detector
IPC: H01Q1/24
Filed: 1973-02-02
Abstract: 1400122 Doppler radar; aerials SOC DE FABRICATION D'INSTRUMENTS DE MESURE 2 Feb 1973 [14 April 1972] 5403/73 Headings H4D and H4A A radar transmitter head includes a rectangular waveguide 1 supplied by a micro-wave source 2 at one end and closed by a short circuit 3 at the other, means for partially blocking the waveguide 1 while allowing controlled leakage therealong, a first cylindrical waveguide 17 connected to a transmitting aerial 9 and situated one half wavelength from the blocking means towards the supply, a second cylindrical waveguide 10 connected to a receiving aerial 12 and situated one half wavelength from the shortcircuit 3 and a crystal mixer 13 between the blocking means and the second cylindrical waveguide to provide output signals. The blocking means comprises two plates 5 which restrict the waveguide cross-section and a reactive screw 4. The Doppler frequency signals produced by mixing the leakage and received signals are output from the mixer 13 to a printed circuit amplifier 17 mounted on the assembly. The aerials 9, 12 are di-electric tapering rods. The radar may be mounted on a mast over a roadway for use in road traffic control.
Patent GB-582200-A (GB)
Title: Collecting container for refuse or the like
IPC: B65F3/22
Filed: 1940-03-27
Abstract: 582,200. Vehicle fittings for loading. LINDE, H. March 27, 1940, No. 5552. Convention date, April 1, 1939. [Class 78 (iv)] In a vehicleloading device in which a screw conveyer receives the material and propels it into the vehicle, the shape of the screw is modified so that the clearance between it and the casing varies at different points along its length. Fig. 1 shows a screw 9 of which the rear threads closely contact the casing 7 while much greater clearance is provided for the forward threads. The changes in thread may be more or less abrupt or continuously variable, forming a conical worm. The screw is fed by dust-bins discharged through the opening 6. For discharging, the screw, casing, and part of the rear wall lift up bodily about a'horizontal pivot out of the way. Fig. 6 shows a modified arrangement in plan in which the rear portion of the screw fits closely into a concentric portion of the casing, while the reduced forward'portion is enclosed in an eccentric part of the casing. In a further modification fixed helical bars are fitted into the forward part of the casing. -Specification 463,520 is referred to.
Patent GB-1256461-A (GB)
Title: Vulcanizable polymers and process for producing them
IPC: C08F8/20
Filed: 1970-02-05
Abstract: 1,256,461. Halogenated hydrogenated polymers. BRIDGESTONE TIRE CO. Ltd. 5 Feb., 1970 [8 Feb., 1969], No. 5578/70. Heading C3P. A polymer containing ethylenic, aromatic or acetylenic unsaturation is hydrogenated in solution in the presence of a catalyst which is a mixture of an organic compound of a transition metal and a reducing agent such as an organometallic compound or a hydride, the polymer solution is then halogenated by a halogen and mixed with water or a non-solvent for the hydrogenated halogenated polymer so as to transfer the catalyst residue to the water or non-solvent phase whereby the polymer can be recovered free from catalyst. The exemplified polymers are polybutadiene and butadiene-styrene copolymer and the preferred halogen is chlorine. The polymers are vulcanizable.