baber/WOPTO huggingface dataset:
Patent GB-1291213-A (GB)
Title: Film cartridge attaching apparatus
Inventor: NUPNAU ARTHUR E
IPC: G03B21/32
Filed: 1971-04-19
Abstract: 1291213 Cassette cine projectors BELL & HOWELL CO 19 April 1971 [15 April 1970] 25992/71 Heading G2E An apparatus for aligning a number of film cartridges 16 with the projection station of a projector includes a frame 30 on which the cartridges 16 are supported, an attaching member 26 which can slide along the frame 30, has projections 36 which fit in openings in the underside of each cartridge 16, and a rotatable fitting 42 which by pivoting about its point of attachment 44 to the member 26 causes the lip 40 of the projections 36 to engage their respective cartridges 16 internally due to the cartridge being moved relative to the member 26. A sprung detent ball 60 acts against the fitting 42 so that when the latter is rotated back to the position shown the ball 60 disengages the cartridges 16 from lips 40. The cartridges 16 are provided with clips to facilitate stacking. The handle 70 connected to shaft 72 beneath the frame 30 operates pinion 74 engaging a rack on the member 26. Detent member 80 acted upon by leaf-spring 62 only permits the member 26 to occupy indexed positions separated by a cartridge's width. The member 26 is held in contact with the frame 30 by guide fingers 32.
Patent GB-401083-A (GB)
Title: Improvements in eye shades
IPC: G02C7/16
Filed: 1932-09-19
Abstract: 401,083. Eyeshades. SCHLUMBOHM, P., 13, Wittelsbacherstrasse, Wilmersdorf, Berlin. Sept. 19, 1932, No. 26003. Convention date, Oct. 3, 1931. [Class 97 (i).] An eyeshade comprises a diaphragm 1 extending over the eye and provided with a short horizontal tubular slot 2 on the level of the centre of rotation of the eye. The width a of the slot is from 3 to 10 mm. and its depth c is about equal to its width. The length b of the slot is sufficient to give unimpeded lateral vision. As shown the diaphragms, which may be pressed out of sheet metal, are mounted in spectacle frames. They may, however, be made of moulded Bakelite &c. and mounted in goggle frames. The openings 2 may be protected by transparent material, or, as shown in Fig. 8, the diaphragm 1 and tube 2 may be made from one piece of glass with the diaphragm extending across the inner end of the tube to form a shield 8, the surface 9 being rendered opaque. The diaphragms may be formed with clips by which they can be attached to the rims of spectacles.
Patent GB-506565-A (GB)
Title: Improvements in the treatment of rubber and similar oxidizable materials
IPC: C08K5/21
Filed: 1938-09-06
Abstract: 506,565. Preserving rubber, oils, etc.; antioxidant UNITED STATES RUBBER PRODUCTS, Inc. Sept. 6, 1938, No. 26008. Convention date, Sept. 11, 1937. [Class 70] [Also in Groups III and IV] Rubber and the like and other oxidizable materials, e.g. unsaturated fatty oils, essential oils, petroleum oils and their derivatives such as gasolines, soaps, aldehydes and synthetic resins, are preserved by incorporating a small proportion, e.g. À1 to 5 per cent, of an N- carbamyl derivative of an amino-diarylamine having the general formula where R1 is an aryl group, R2 is an arylene group, X is oxygen, sulphur or an imide radical and R is hydrogen or a hydrocarbon group. The compounds may be made for example by the reaction of a carbamyl halide on a primary-amino-substituted diarylamine. In examples: (1) 21 gms. of p-amino-diphenylamine are heated for 1¢ hours with an excess over the molecular equivalent of urea at 150‹ C. with evolution of ammonia. The molten mass is poured in water while agitating and the precipitate is washed with hot water and dried. The product is believed to have the formula, and may be called p-anilino-phenyl urea; (2) 23 grams-of p-amino-phenyl p-tolylamine are dissolved in 200 cc. of benzol, 17 gms. of phenyl mustard oil are added. On standing a gray powder separates which may be washed with benzol and dried. It is believed to have the formula and may be called p-(p-tolylamino) diphenyl thiourea; (3) “ mole of p-amino-phenylptolyl amine is refluxed for 72 hours with an excess over “ mole of carbon bisulphide in 300 cc. of alcohol containing a pinch of sulphur and 2 gms. of potassium hydroxide. The product is believed to have the formula and may be called p, p<1>-di(p-tolylamino) diphenyl thiourea. Lists of primary-secondary aromatic amines, carbamyl derivatives of which may be used, and of carbamyl groups, are given in the Specification. The compounds may be used in conjunction with other types of antioxidants, e.g. ketone-diarylamine reaction products.
Patent GB-502426-A (GB)
Title: Improvements in duplicating machines
IPC: B41L39/06
Filed: 1937-09-25
Abstract: 502,426. Copying documents; feeding sheets. FORD, F. R. Sept. 25, 1937, No. 26022. [Classes 100(i) and 100 (ii)] Sheets are fed automatically from a pile to a machine for copying docmnents such as is described in Specification 384,771, and is described in connection with a machine in which the master sheet 16 is clamped to the printing cylinder 1 by means of a clamp 15 as described in Specification 447,184, and in which the cylinder 1 is arrested once in each revolution by means of a recess 13 .and spring-controlled detent 12 as described in Specification 483,403. The cylinder 1 is driven by a gear 6 operated by a crank handle, and gear 6 drives the cylinder 1 through a mutilated gear 9, 11, which permit a pause in the motion of the cylinder 1 corresponding to a half rotation of the driving- crank. During this period a sheet is fed from the top of a pile 18 by means of a pair of friction rollers 28 which are reciprocated to and fro over the pile by means of a pair of oscillating arms 21 operated by linkwork 25, 26, 27 from a crank-pin on the mutilated gear 9. The rollers 28 are mounted in a fork 29 secured to a block 30 pivoted to a bar 23 connecting the arms 21. The fork is connected by a screw to the block 30 in such a manner that it can rock about the axis of the screw, and springs ensure that the rollers press evenly on the pile. Pawls 37 engaging ratchets on the rollers prevent rotation of the rollers when moving towards the cylinder 1. The block 30 can be set so that the feed rollers are held out of operation by a screw 33 when hand-feeding is required. The sides of the pile are controlled by adjustable side gauge members 41 fitted with strips 62 of sponge rubber &c. and held in place by a nut 45 which cause T-heads 47 on screws 43 to grip the underside of slots in the table 17. The end of the pile may be engaged by stops similar to the stops 41, 42, or by a spring-pressed presser ptate 53 carried by a lever 55 mounted on an upright post 49 which is adjustable longitudinally of the table 17.
Patent GB-468048-A (GB)
Title: Improvements in the cylinder heads of internal combustion engines
IPC: F02F1/36
Filed: 1935-09-20
Abstract: 468,048. Cylinders. LAWRIE, J. Sept. 20, 1935, No. 26048. Void. Convention date, Sept. 20, 1934. [Class 7 (ii)] A combustion chamber of a side-valve engine has a flat roof 9 and is bounded by a straight wall 8, transverse thereto, which forms a baffle across the top of the cylinder bore. The sparking - plug socket 13 is arranged at the centre of the chamber symmetrically with reference to the valves 11. The clearance space over the piston at 12 is 5 per cent of the capacity of the chamber.
Patent GB-1305638-A (GB)
IPC: H01R41/00
Filed: 1970-05-29
Abstract: 1305638 Two part couplings NOKIA AB OY 20 May 1970 [31 May 1969 21 Jan 1970] 26139/70 Heading H2E [Also in Division H1] A plug for a current supply bar 1 having at least three electrical conductors R, S, Mp comprises a like number of electrically conductive contact fingers 6 which are selectively displaced by respective cam surfaces i.e. 3f, 3e of a control shaft 3 to engage respective conductors of the bar. A common conductor Mp may be used with any of live conductors R, S, T by appropriate rotation of the shaft, the contact fingers for R, S and T being interconnected. Arms 5 may be hard to retain the plug in the bar by ends 5a engaging flanges 1a of the bar when the shaft is rotated from its rest position. An earth finger 4 may interact with the shaft by peg 3b and recess 4c to prevent the shaft being rotated, to engage the fingers, if the earth contact is not depressed by engagement with the earth conductor E. The peg and recess positions may be exchanged. The contacts may be normally biased towards the conductors and then lifted from them by the cam surfaces or may have cage sections (Fig. 16, not shown) surrounding the shaft and engaged with cam surfaces so as to be moved to or from the conductors when the shaft is rotated. A contact finger may have two opposed contact ends 16<SP>1</SP>, 26<SP>1</SP>( Fig. 14, not shown) to alternatively engage opposed conductors. The rail may be of metal with plastics inserts for supporting the conductors.
Patent GB-158313-A (GB)
Title: Improvements in means for raising and forcing liquids
IPC: F04F1/06
Filed: 1919-10-25
Abstract: 158,313. Highfield, J. S. Oct. 25, 1919. Direct air-pressure apparatus, automatic.-Consists in a pressure-andvacuum apparatus in which the controlling valve is actuated, automatically, through a relay device. The tank a has a suction pipe b and a delivery pipe c, and a connection s through which the air is exhausted and pressure-air supplied under the control of a piston valve i in a casing h. A motor t drives a shaft v which actuates the pumps supplying air under pressure to the tank g, and exhausting the tank e, respectively. The tank g is connected to the upper end of the casing h by a pipe f from which a branch 8 leads to a relay device z. The tank e is connected by a pipe d to the casing h between the flanges k, l on the valve i. The shaft v, through worm and belt gear, drives a cam x which bears on a roller 7 on a lever actuating the valve 10 of the relay device. When the valve 10 is in the position shown in Fig. 2, pressure-air passes through the pipes 8, 9 to the lower part of the casing h and, as the flange l is larger than the flange k, raises the valve i. The tank a is then exhausted through the pipes d into the tank e, and filled through the pipe b. When the valve 10 is raised by the cam, the pipe 9 is exhausted through the holes 11 and the valve i is depressed to allow pressure-air to pass through the pipe s to empty the tank a through the pipe c.
Patent GB-771752-A (GB)
Title: Method of converting methyl trichlorosilane to dimethyl dichlorosilane
IPC: C07F7/12
Filed: 1955-09-14
Abstract: Dimethyl dichlorosilane is prepared by reacting methyl trichlorosilane with the solid hydrolysis product of methyl trichlorosilane at an elevated temperature in an oxygen-free atmosphere.  Reaction temperatures of 450 DEG  tp 700 DEG  C. are employed and the atmosphere may be an inert gas, e.g. argon, or vaporized methyl trichlorosilane.  The process may be carried out in a silica tube which is packed with the dried methyl polysiloxane; oxygen is removed, the tube is heated and the trichlorosilane is passed through alone or with a carrier gas.  Examples are given comparing yields with different depths of polymer packing, rates of flow, &c.
Patent GB-997745-A (GB)
Title: Improvements relating to germinating pans
Inventor: LOWNDES DANIEL ERIC
IPC: A01G9/10
Filed: 1963-07-02
Abstract: 997,745. Seed boxes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 3, 1964 [July 2, 1963], No. 26269/63. Heading A1E. A seed box 1 has a corrugated base 2 and includes a partition 6 which divides the box into a soil compartment 8 and a water compartment 9 having access to each other beneath the partition by way of the corrugations. The partition 6 is removably located in grooves 4<SP>1</SP>, 5<SP>1</SP> formed on the sides of the box and drainage apertures 3, 3<SP>1</SP> or provided in the crests of the corrugations in the troughs at the end of the box away from compartment 9. Partition 6 has markings 10 to indicate soil and water levels and upstanding bosses 7 assist in positioning partition 6. The box is made of moulded plastics material.
Patent GB-368724-A (GB)
Title: Improvements in and relating to gyrostats
IPC: G01C21/18
Filed: 1930-09-03
Abstract: 368,724. Gyroscopic apparatus. BROULHIET, G., 201, Rue de Grenelle, Paris. Sept. 3, 1930, No. 26328. Convention date, Sept. 4, 1929 [Class 97 (iii).] In gyroscopic apparatus for stabilizing ships or other vehicles, a plurality of flywheels which may be clutched into rotational engagement with the precessional axis of the gyroscope at will are provided. As shown in Fig. 1, the precessional axis 1 of the gyroscope 2 may carry a toothed sector 3 driving the shaft 5 on which are placed flywheels 6 adapted to be engaged with the shaft 5 by clutches 7. Springs 8 may be provided to bias the flywheels towards an equilibrium position. The flywheels may be connected to the precessional axis through change-speed gearing. The other end of the precessional axis 1 may be geared through a sector 3a, Fig. 3, to damping means comprising a centrifugal turbine 12 adapted to pump fluid through the pipe 14, provided with adjusting valve 15, and the tank 13. Alternatively the precessional axis may carry a transverse bar connected by springs to a swinging bar integral with a pendulum which is damped by being connected to a centrifugal pump. The period of oscillation of the boat in calm water may be controlled by regulating the amount of water in two ballast tanks placed respectively at the top and bottom of the ship's hull.
Patent GB-1253627-A (GB)
Title: Two-part electrical couplings
Inventor: MCDONALD THOMAS VICTOR
IPC: H01R12/71
Filed: 1969-05-23
Abstract: 1,253,627. Two-part coupling. SMITHS INDUSTRIES Ltd. 15 May, 1970 [23 May, 1969], No. 26336/69. Heading H2E. An electrical coupling comprises two housings of plastics 1, 16 adapted to engage one another such that before electrical contact is made, a key 25 on part 16 (Fig. 7) and keyway 14 on part 1 (Fig. 2) must correctly be engaged. The key and keyway have a modified saw-tooth cross section. Pins 2 and sockets 17 are secured in the respective housings (see Fig. 1) by moulding or by sections thereof 5, 20 abutting shoulders in the housings and circlips 7, 22. A double-sided printed circuit board 11 may be supported in a channel formed in the transverse walls 9 of member 1 along the line of the wall 8. These walls also increase the leakage path. The board 11 is fastened to 1 using lugs (12, Fig. 3, not shown). Connection between pins and printed circuit is by lead wires wrapped round the pins with a tool (not shown). The edge of the key 25 may be bevelled slightly for easy location in the key-way and the holes for the connectors may be countersunk at the insertion ends. (For Figures see next page.)
Patent GB-1191113-A (GB)
Title: Production of Saturated Carbonyl Compounds
IPC: B01J31/08
Filed: 1967-06-07
Abstract: 1,191,113. Saturated carbonyl compounds. RHEINPREUSSEN A.G. FR BERGBAU UND CHEMIE. 7 June, 1967 [7 July, 1966], No. 26345/67. Heading C2C. Saturated carbonyl compounds, e.g. methyl isobutyl ketone are made from condensible -CO compounds, e.g. acetone by self- or intercondensation to yield inter alia, e.g. mesityl oxide which is hydrogenated to methyl isobutyl ketone both reactions being effected at 80-250 C. and elevated pressure by passing acetone and hydrogen downwardly over a fixed bed of strongly acidic catalyst containing Pd, Ru or Rh in divided form, the Pd, Ru or Rh having been introduced into the catalyst by impregnation with a salt solution of the metal and subsequent reduction of salt to metal at elevated temperature using hydrogen. Byproducts include iso-propyl alcohol and diiso-butyl ketone.
Patent GB-1208452-A (GB)
Title: Improvements in zinc-air batteries
Inventor: BROWN DENNIS COCKBURN
IPC: H01M12/06
Filed: 1967-06-07
Abstract: 1,208,452. Zinc-air cells. ASSOCIATED ENG. Ltd. 7 June, 1968 [7 June, 1967], No. 26359/67. Heading H1B. A zinc-air cell has a fluidized anode, the airsupply for which provides at least part of the air supply for the porous cathode. As shown, air passes through apertures 6 in the bottom of the porous Ni cathode 2 and porous insulating container 3 into the Zn particles 4 which are fluidized thereby. Air also passes directly through the base of the porous cathode 2 into the aq. KOH electrolyte 5. After discharge the zinc oxide can be removed and replaced by fresh zinc particles. The air pump can be powered by the cell after starting when it is separately powered, e.g. by a battery or manually.
Patent GB-340926-A (GB)
Title: A single acting fluid pressure engine with automatic control
IPC: F01L15/08
Filed: 1929-11-15
Abstract: 340,926. Engine valve-gear. PREPARATION INDUSTRIELLE DES COMBUSTIBLES SOC. ANON., 23, Boulevard de Strasbourg, Nogent-sur-Marne, France. Nov. 15, 1929, No. 26445/30. Convention date, Nov. 15, 1928. Divided on 343,157. [Classes 122 (ii) and 122 (iii).] In a single-acting fluid-pressure motor for conveying troughs in mining works, the distribution is controlled by differential fluid-actuated supply and auxiliary exhaust valves and the main piston. The valves are arranged vertically to reduce wear, and fall back on the failure of the pressure fluid to the admission position. The distribution may be automatically controlled by variations in the pressure of the fluid supply, or by variations of load. The piston stroke is adjustable. The admission valve moves in a chest 3 and has differential actuating-gears 4 .. 7. The upper and lower areas of the valve form cushioning-areas. The cylinder has ports 12, 13, 14 connected to a duct 15 leading to the face 7. The ports are controlled by heads 12a, 13a, 14a on a valve 16 subject to the supply pressure at one end and to a spring and the cylinder pressure at the other end. When the supply pressure is a maximum and the load normal, the port 13 is open. When the pressure is a minimum and the load a maximum, ports 12, 13 are closed and the port 14 is opened. When the load diminishes and the piston overruns, the valve 16 is moved to the left and effects the cut-off. The auxiliary exhaust valve 23 works in a vertical chest with cushioning-holes. When the port 29 is closed by the piston moving to the left, the compression raises the valve to close the exhaust port 26. The ports 30, 31, 32 which determine the piston stroke are controlled by collars 33 on leather straps operated by screw-and-nut mechanism, Fig. 2. Additional holes 36 open to the atmosphere are provided at the cylinder end. During working, after the main exhaust is opened, the weight of the trough returns the piston and closes port 29. The compression closes valve 23 and acts upon the admission valve face 6 and lowers the valve until the channel 2 is uncovered when the valve movement is completed under supply pressure. The piston is moved to the right and the valve 16 is moved to a position of balance. When a port 12, 13, or 14 communicating with the channel 15 is opened, pressure fluid passes to the surface 7 and effects the cut off. The piston continues its movement until the main exhaust is opened, after which the valve 23 opens and the piston moves to the left. Specification 343,157 is referred to.
Patent GB-1310304-A (GB)
Title: Multiplex apparatus with stage isolating means
IPC: H04J3/04
Filed: 1970-06-02
Abstract: 1310304 Transistor gating circuits NATIONAL SEMI-CONDUCTOR CORP 2 June 1970 [29 Sept 1969] 26446/70 Heading H3T A plurality of selectively switchable dual channel amplifiers are connected to common output terminals via respective diodes poled so as to isolate those amplifiers which are switched off. An object is to reduce the capacitance connected to the output, which would be the sum of the capacitances of all the amplifiers, by inserting the low capacitance of a diode in series with each, in addition to preventing input signals on the turned-off amplifiers reaching the output As shown, amplifiers T 10 ... T 24  having input terminals 40 ... 45 are switched in pairs to two output terminals 36, 38 by switching transistors S 1  ... S 3 . One pair only would be on at any time. The main isolating diodes are D 10  ... D 24  but further diodes D 4  ... D 6  provide isolation against negative input voltages. Preferably the circuits are in integrated form.
Patent GB-501300-A (GB)
Title: Improvements in air filters
IPC: B01D45/08
Filed: 1937-09-30
Abstract: 501,300. Dust separators. BAILEY, W. M. Sept. 30, 1937, No. 26528. [Class 8 (ii)] Dust is separated from air by apparatus composed of units such as are shown in the Figure, formed of side walls and connecting louvres. A number of such units are united to form a panel in which the louvres of adjacent units may point in different directions, and a number of such panels may be combined in paralled spaced relationship to form a cleaner. The units are replaceable and may be cleaned by dipping in soda, tricholormethylene, &c. In use, they may be coated with oil. Plates formed.of the muts may be circular.
Patent GB-1523433-A (GB)
Title: Electric cables
IPC: H01B7/285
Filed: 1975-09-15
Abstract: 1523433 Waterproof power cable DELTA ENFIELD CABLES Ltd 15 Sept 1975 [14 June 1974] 26529/74 Heading H1A A power cable comprises an insulated core 10, a corrugated metal sheath 12 and axially extending barriers of waterproof material 13 which completely fill sections of the space between the core and sheath. The material may be introduced into the space by discontinuous pumping, or may be formed as a cylinder on the core and separated into discs by blasts of air (Fig. 3, not shown). The material may be a wax-like mass impregnated non-draining compound.
Patent GB-1094153-A (GB)
Title: Improvements in and relating to precision speed control for cyclically moving bodies
Inventor: LESLIE WILLIAM HENDERSON PATER
IPC: H02P5/50
Filed: 1963-07-04
Abstract: 1,094,153. Automatic frequency control systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 16, 1964 [July 4, 1963], No. 26613/63. Heading H3A. [Also in Division G3] The speed of a cyclically-moving machine part is controlled by an apparatus comprising a pulse source, the frequency of which is dependent on a control signal, having an output for varying the speed of the moving machine part in dependence on the frequency, the output also being fed through a variable scale counter to a comparator having a second input from a source of reference frequency, the output from the comparator being dependent on the difference between the frequencies of the inputs and forms the control signal, the scale of the counter providing control of the speed of the machine part. As shown, an hydraulic or electric motor 12 is provided with a speed controller 13 which is controlled through an amplifier 14 by a signal from a differential counter or comparator 15. The speed of a shaft 11 driven by the motor is measured by a sensing head 17 generating a pulse train in response to the rotation of a grating 16 driven by the shaft. The pulse train, through a batch counter 18, is fed to an input of the comparator 15. A pulse generator 19 produces a pulse train, having a frequency related to the speed at which it is desired to rotate the shaft 11, which is fed to a second input of the comparator through a batch counter 27. The pulse generator 19 comprises a reference source 21 of constant frequency, the output of which is fed to a comparator 25, and a variable frequency source 22, the frequency of which can be varied in dependence on a voltage applied over a line 23. The output of the source 22 provides the output of the generator 19 and is also fed through a batch counter 24, of variable scale, to the comparator 25. The output of the comparator is smoothed to a D.C. voltage by a network 26 and applied to the line 23 to stabilize the frequency of the source 22, the setting of the batch counter 24 determining the relationship between this frequency and the reference frequency. In a modification for controlling the speed of the shaft 11 in dependence on that of a master shaft the source 21 is replaced by a pulse generator comprising a diffraction grating carried by the master shaft and a sensing head.