baber/WOPTO huggingface dataset:
Patent GB-411113-A (GB)
Title: Improvements in fuel injection devices for internal combustion engines
IPC: A43D69/04
Filed: 1932-11-24
Abstract: 411,113. Fuel - injection pumps. SCHAEREN, E., 38, Florastrasse, Solothurn, Switzerland. Nov. 24, 1932, No. 33246. Convention date, Nov. 25, 1931. [Class 102 (i).] A fuel-injection pump for internalcombustion engines of the kind having a loaded counter-piston is constructed so that the latter is of smaller diameter than the main piston. The main piston b is actuated by a cam i and has an axial bore v communicating with a circumferential groove w. At the appropriate time the groove registers with a port k leading to a delivery pipe m and injector nozzle s. The counter-piston p, of smaller diameter than the main piston, is under the restraint of a spring g and works in an enlarged diameter section d of the main cylinder and when in contact with the piston b closes the bore v.
Patent GB-1382759-A (GB)
Title: Erasing typewriter
IPC: B41J5/44
Filed: 1973-07-12
Abstract: 1382759 Correction with typewriters INTERNATIONAL BUSINESS MACHINES CORP 12 July 1973 [3 Aug 1972] 33255/73 Heading G4H An erasing typewriter has a keyboard, a printing mechanism to print keyboard-entered characters, a memory to store the characters, an erasing mechanism operable from the keyboard to erase characters previously printed by the printing mechanism, and control means operable to drive the printing mechanism to reprint previously-erased characters drawn from the memory in accordance with a selection from the keyboard of which are wanted for reprinting. The memory can store a line of characters. Keying of a character causes access of the memory location corresponding to its position in the line to check whether the location contains a character with a "symbol not appear' bit set to identify the character for later reprinting. If it does, this character and all subsequent ones in the memory are read and re-stored one location to the right, in turn, to make room for the keyed character, which is then stored in the memory. If the "symbol not appear" bit was not set, the keyed character is stored in the memory unless it is not a space and there is already a character stored in that location which is not a space: since this indicates that the operator is attempting to type over a character which has not been erased, printing and storing are inhibited. An erase key is depressed to erase one character, or depressed further against a spring to erase a whole word (the end of which is detected by a "space" in the memory), and if the key is still in the latter state when erasure of the word has been completed, erasure will continue back to the beginning of the line. (In a modification, a second depression can be used to interrupt the latter type of erasure). The system performs the erasures by "printing" the characters from the memory but with an erasure ribbon in place so that the ribbon lays down a white cover-up transfer layer or lifts the ink from the paper on an adhesive layer. (In a modification, rotary rubber erasers are used. A toggle switch on the keyboard controls whether or not the erasure is to be accompanied by deletion from the memory. If it is not, the "symbol not appear" bits of the erased characters in the memory are set. If it is, a further bit in each erased character in the memory is set to indicate that its location can be used for another character and the characters to the right in the memory are read and re-stored one location to the left. After corrections have been made, a retype key can be depressed to cause the system to reprint the characters erased but having the "symbol not appear" bit set, and to space over without reprinting any characters encountered which remain on the paper from previous printing, under control of the memory, with resetting of the "symbol not appear" bits.
Patent GB-601804-A (GB)
Title: Improvements in separators for lead acid accumulators
IPC: H01M2/16
Filed: 1945-12-10
Abstract: 601.804. Treating wood: acid-proof paper-board. CHLORIDE ELECTRICAL STORAGE CO., Ltd., and HAMPTON. H. J. Dec. 10. 1945, No. 33296. [Classes 96 and 140] [Also in Group XXXVI] Dried alkali treated material consisting of natural wood or wood in fibrous or powder form compressed into slabs or sheets such as fibre board is immersed in a dilute solution of an alkali salt and after draining and drying is impregnated with a solution in a volatile solvent of a resin, the solvent removed and the material then treated with an aqueous solution of a wetting agent and dried. The alkali salts specified are sodium or potassium carbonate or silicate. The resins may be polyvinyl chloride or polymethylmethacrylate. The treated material is suitable for use as accumulator separators.
Patent GB-628331-A (GB)
Title: Improvements in safety razors
IPC: B26B21/28
Filed: 1947-11-08
Abstract: 628,331. Safety razors. KEATES, W. D. Nov. 8, 1947, No. 33565/46. [Class 30] In a safety razor having a guard member B, Figs. 2 and 3, and an end cap A forming together a blade-clamping head rigidly mounted on'the handle I, the guard member is of inverted channel form and co-operates with a plate O mounted between its side flanges to define a cavity into which hair and lather may pass through openings M in the guard member, the plate being pivoted so as to be movable to a position facilitating cleaning of the cavity. The plate O is pivoted on a hinge pin Q and frictionally held closed by projections R engaging holes or recesses in the guard member, or vice versa. The handle must be unscrewed from the stem E of the cap and removed before the plate can be swung open. The guard member is of wedge form in side elevation, with an included angle of between 5 degrees and 40 degrees, which results in a shearing cut. The edges of the cap A may have dependent lugs to shield the corners of the blade C. The upper face of the guard member preferably has a greater radius of curvature than the lower face of the end cap. The guard may be externally rounded at L, or rebated or bevelled. The cap, guard and handle may be of metal or plastic material, the threaded socket H for the stem E may be a metal insert moulded in the plastic handle, and the stem E and locating pins J may be moulded integrally with the plastic cap.
Patent GB-1411312-A (GB)
Title: Process and bath for electrolytically producing micro-fissured chrome layers
IPC: C25D5/12
Filed: 1973-07-13
Abstract: 1411312 Electrolytically producing microfissured chromium LANGBEIN-PFANHAUSER WERKE AG 13 July 1973 [1 Aug 1972] 33640/73 Heading C7B A micro-fissured Cr layer (e.g. having 1500 fissures or more/cm) is produced on an intermediate layer of Ni, Co, Ni-Fe, Ni-Co or Fe-Co by (1) electrolytically depositing the intermediate layer from a bath containing (a) ions of the metal(s) of the intermediate layer, (b) Cl ions, (c) at least one aromatic and/or aliphatic carboxylic acid or a salt thereof and (d) one or more of the following fissure forming additives in a total amount of 0.01 to 8 g/l. Isonicotinic acid hydrazide, Pyridine-3-carbinol, Pyridine-4-aldehyde, L-Nicotine, 1-(3-pyridyl)-2-(4-pyridyl)-ethylene, 4-Pyridyl acrylic acid and Pyridine-3-aldoxime and (2) thereafter electrolytically depositing Cr on to the intermediate layer. An electrolyte for electrolytically depositing Ni may have the nickel present as chloride, sulphamate, sulphate, fluoboride, fluoride, citrate or acetate. The aromatic and/or carboxylic acid or salt thereof may be acetic, tartaric, phthalic or citric acid or CH 3 COONH 4  or CH 3 COONa. The electrolyte may contain butin-2-diol-1,4 and a wetting agent (unspecified). Specified conditions for a bath containing NiCl 2  and CH 3 COONH 4  are pH 1-6, current density up to 30A/dm<SP>2</SP>, temperature 20-70C and exposure time 10 sees-10 mins. Specification 1371172 is referred to.
Patent GB-395240-A (GB)
Title: Improvements in crop-gatherers for reaping machines
IPC: A01D65/04
Filed: 1932-11-28
Abstract: 395,240. Reaping-machines . BENECKE, P., Kraatz, near Arendsee, Altmark, Germany. Nov. 28, 1932, No. 33645. [Class 6 (iii).] A crop-gathering device for a reaping-machine comprises a number of rods 14 passing through guide eyes 15 on a frame 16 secured to a vertical shaft 8, said rods being pivoted to steering members 11 which are pivoted on a support member 13 secured on the shaft 8 and are provided with rollers 10 to engage a cam track 9. The shaft 8 is driven by bevel gearing from the shaft 17 that normally drives the reel and the shape of the cam is such that the rods 14 are caused to enter the grain on the stubbleward side of the machine in a radial direction and then to move in an approximately circular path across the width of the cutting mechanism, finally being withdrawn radially. The device may be adjusted vertically or to- and-from the cutting mechanism by the usual adjustments for the reel actuated by quadrant levers. In addition means is provided for tilting the shaft 8 to alter the angular relation of the gatherer rods 14 to the cutting mechanism.
Patent GB-467229-A (GB)
Title: New and useful improvements in the manufacture of obstetrical instruments for animaland human use
IPC: A61B17/44
Filed: 1935-12-05
Abstract: 467,229. Obstetric instruments. MARSHALL, G. A., and GALBRAITH, W. T. Dec. 5, 1935, No. 33679. [Class 81 (ii)] An obstetric appliance consists of a combined cervical dilator and forceps which can be used as one instrument or separated. The arms of the dilator F pass through a disc E carried by a threaded sleeve A, expansion of the dilator being effected by rotation of the handle or nut D. The forceps K extend from a threaded sleeve B and pass through a disc H carried by a rod C, screwed into a knob or handle J, closure of the forceps being effected by rotation of the handle G. The parts may be separated by removal of the handles G and J.
Patent GB-1112335-A (GB)
Title: Improvements relating to positional control apparatus
Inventor: RETZLAFF GUNTER
IPC: G05B19/416
Filed: 1965-08-06
Abstract: 1,112,335. Control of motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 6 Aug., 1965, No. 33710/65. Heading H2J. [Also in Division G3] In a positional control system the speed of a positioning motor is controlled in accordance with a quantity representing the product of the positional error and a multiplication factor which increases during the initial part of a movement and reduces during the latter part of the movement. As shown, a positional error Ra is derived as the difference between a nominal value Ls and an actual position value Li in a comparator S 1  and fed to a multiplying circuit MS, where it is multiplied by a factor Z, and fed as a nominal speed value Ns to a comparator S 2 . The output Nw of the comparator S 2 , which is also responsive to the actual speed value Ni from a tachogenerator DM controls the speed of positioning motor M. The factor Z is derived by feeding pulses from a position transmitter P coupled to the motor M to a main counter Zh and an auxiliary reversible counter Zv. The factor Z from the counter Zh increases up to a value dependent on a count set in the input Z 1  above which it is held constant. The counter Zv counts up to a value Z 4  at which a signal to an input Z 3  of the counter Zh reverses the count. The counter Zh counts down and the factor Z is held constant until the count falls to the count on input Z 1  after which the factor Z reduces to slow down the motor as the position error falls to zero.
Patent GB-808687-A (GB)
Title: High input impedance comparator
Inventor: STILLWELL HARRY F
IPC: H03K5/1536
Filed: 1956-11-05
Abstract: 808,687. Pulse generator circuits. COLLINS RADIO CO. Nov. 5, 1956, No. 33716/56. Class 40(6). A pulse generator for generating a pulse each time a sine wave passes through zero voltage comprises two series connected diodes associated with a transformer so that when the circuit is triggered by a negative signal it re-generates to produce an output pulse. The Figure shows the application to a circuit in which it is required to produce a train of output pulses, each of which has a position determined by a given position (the crossing of zero voltage line) on the cycle of a sinusoidal input voltage. The input signal, Fig. 2, not shown, is applied to the control grid of a pentode amplifying stage 11 to produce an amplified sinusoidal signal across the large value load resistor 18 so that the stage 11 produces a large input pulse voltage from a high impedance signal source. During the positive half-cycle of the signal voltage diode 10 conducts to ground and diode 21 is non-conductive. During the negative half-cycle diode 21 conducts and a feed-back path is completed through diodes 21 and 10 in series-aiding, resistor 34 and the primary and secondary windings of transformer 27, the regenerative effect builds up rapidly to produce a narrow output pulse across the cathode load of tube 32. The negative voltage during regeneration charges capacitor 36 and maintains the grid of tube 32 sufficiently negative to prevent the occurrence of re-generation during the remainder of the negative half-cycle. The time constant of network 34, 36 is sufficiently small to allow recovery before the next pulse, but large enough to maintain tube 32 below cut-off during the inter-pulse interval.
Patent GB-1334268-A (GB)
Title: Fluorescent lamp with shielded electrodes
IPC: H01J61/33
Filed: 1971-07-19
Abstract: 1334268 Fluorescent discharge lamps JOHN OTT LABORATORIES Inc 19 July 1971 [20 July 1970] 33729/71 Heading H1D Shields 20, 21 made of a material which will absorb X-rays are mounted on an elongated tubular fluorescent lamp 10 surrounding the electrodes 14, 15 to prevent emission of non- visible electrode radiation outwardly from the lamp envelope. The shields may be made of lead or of a material having a high lead content. In a modified construction (Figs. 2 and 3, not shown) the shields are extended around the ends of the lamp envelope. In a further modification (Fig. 4, not shown) the ends of the shields remote from the ends of the lamp are bent inwardly to enter circumferential grooves provided in the envelope. Foil strips may be wrapped around the lamp, or the shields may be preformed in tubular shape, slid over the ends of the lamp and secured by cementing. Alternatively a shield may comprise two half cylinders secured together by screw or clamping features. For large lamps the shields may be blackened, e.g. with a carbon coating, to avoid overheating, or may be provided with fins.
Patent GB-466799-A (GB)
Title: Manufacture of monoazo dyestuffs
IPC: C09B29/12
Filed: 1935-12-05
Abstract: Water-soluble monoazo dyes are made by coupling a diazotized p-aminophenyl sulphatoalkylether with p-cresol.  The phenyl residue may be substituted other than by nuclear sulphonic, carboxylic or nitro groups.  They are similar to the dyes described in Specification 441,089 and colour acetate artificial silk, wool, natural silk and tin-weighted silk.  In examples, p-aminophenyl BETA-sulphatoethyl ether, p-aminophenyl g -sulphatopropyl ether and 4-amino2-chlor- or 2-methyl-1-phenyl BETA-sulphatoethyl ether are specified as diazo components. Specification 266,940, [Class 2 (iii)], also is referred to.  The sulphatoalkyl ethers are made by treating the corresponding p-aminophenylhydroxyalkyl ether with a sulphating agent, e.g. sulphuric acid monohydrate.
Patent GB-416762-A (GB)
Title: Improvements in and relating to vibration and electric massage apparatus
IPC: A61N1/32
Filed: 1933-12-01
Abstract: 416,762. Electro-massage apparatus. HORSKY, M., 1816, Mladonovicova, Prague, and BRONNER, H., Orlova, both in Czecho- Slovakia. Dec. 1, 1933, No. 33769. [Class 81 (ii).] Apparatus for massaging the body while applying electricity thereto and comprising a known make and break massage hammer is provided with a screw 16 for connection to the casing or lamp socket 20 of an ordinary pocket torch containing a battery 10, and the coil 1 of the magnetic hammer is enclosed in a casing 3 of magnetisable material. A spring 4 is secured by plates 5 to the casing 3 and an armature 6 having a spring 8 co-operating with an interrupter screw 7. The hammer 9 may be a conductor or, as shown in Fig. 3, may consist of rubber or other insulating material on a metal base 14 from which wires 13 lead to the ends of the projections 15, which may be shaped to the part of the body being treated. The poles of the battery are connected one to the screw 7, the other to the coil 1 the other end of which is connected to the casing 3 or the armature 6. The torch casing 19 is held in the hand which serves for completing the circuit through the body. The connections to the battery may be reversed. Chemicals such as lactic or formic acids, or ointments may be applied simultaneously with the massage. An adjustable resistance or condenser may be interposed between the casing 3 and hammer 9. Fig. 4 shows a modified form of armature pivoted at 18 and having a projection 17 extending within the solenoid.
Patent GB-358766-A (GB)
Title: Improvements in ophthalmoscopes, retinoscopes and like sight-testing instruments
IPC: A61B3/12
Filed: 1930-11-10
Abstract: 358,766. Sight-testing instruments. BINSTEAD, H. C. and GOWLLANDS, Ltd., Morland Road, Croydon. Nov. 10, 1930, No. 33829. [Class 97 (i).] In order to allow the position of the body of an ophthalmoscope or retinoscope to be adjusted in relation to the stem the two parts are connected by a spring friction grip. The stem a is provided with a recess in which is mounted a spring tongue b, a curved portion of which bears outwardly against the body d which is slidably mounted over the stem. Relative rotation of the body and stem is prevented by a pin a<1> on the stem extending through a longitudinal slot d<1> in the body. To enable the parts a, d to be separated an inclined slot d<2> is provided extending from a point at or near the lower end of the slot d<1>.
Patent GB-924959-A (GB)
Title: Improvements in or relating to furnaces for intermittent combustion
IPC: F23C15/00
Filed: 1961-09-21
Abstract: 924,959. Generating combustion products under pressure; fluid-fuel combustion chambers. GUSTAVSBERGS FABRIKER A.B. Sept. 21, 1961 [Sept. 22, 1960], No. 33888/61. Class 51 (1). [Also Group XI] An intermittent combustion chamber has at least two nozzles to spray liquid, gaseous or pulverized fuel over the whole volume of the chamber and a three-dimensional lattice structure composed of a refractory material, which occupies a substantial part of the furnace, to cause substantially simultaneous ignition of the injected fuel throughout the chamber. A waterjacketed combustion chamber 1 with an outlet duct 2 has fuel nozzles 5 with different spray angles and a tangential air inlet 6 with a non- return valve 7. A square-section lattice 8 of a refractory material such as heat-resisting steel becomes incandescent and causes ignition of the fuel.
Patent GB-850344-A (GB)
Title: Improvements in or relating to machines for introducing or extracting bottles into or from bottle cases
IPC: B65B21/18
Filed: 1957-10-30
Abstract: 850,344. Gripping devices for handling bottles. CERTUS MASCHINENBAU G.m.b.H. Oct. 30, 1957 [Oct. 30, 1956; Sept. 13, 1957], No. 33889/57. Class 78 (4). [Also in Group XVII] A machine for filling or emptying bottle cases (see Group XVII) comprises manifold bottle-' gripping devices each suspended by a spring from a radial arm 15 which is mounted for vertical movement under the action of a cam in a rotary frame. Each device comprises a frame 22 supporting three shafts 24 on which are mounted pairs of spring-connected arms 44, 48 carrying grippers 26 adapted to engage the necks of the bottles. The arms 44, 48 have lostmotion connections with further pairs of arms 35, 36 and 351, 361 interconnected by links 40 so that the grippers are opened and closed simultaneously. The grippers are normally held in the open position by a strong spring 41 interconnecting the outer arms 35<1>, 36<1> and are moved to a closed position by rotation of a central cam acting on the arms 35, 36. After the cam has been rotated to close the grippers it is automatically locked by a latch 50, the grippers remaining closed until the latch is tripped.
Patent GB-177838-A (GB)
Title: Improvements in or relating to cast plate sleepers for flat footed rails
IPC: E01B3/24
Filed: 1920-12-01
Abstract: 177,838. MacMillan, G. W. Dec. 1, 1920. Sleepers integral with chairs.-Pot sleepers for flat-footed rails have integral rail and key jaws 1, 2, the inner jaw 1 being of less width than the rail seat 4 which has on its inner edge projections, ridges, beadings, or lugs to engage the inner flange of the rail. The rail seat may have a continuous ridge 5 or a projection 5<a> at each end. The key jaw 2 may incline from the rail jaw 1 both in plan and elevation, or the jaws may be canted at an inclination of 1 in 20. The sleepers are secured together by tie-bars 8 with adjustable gibs and cotters 11.
Patent GB-806749-A (GB)
Title: Improvements in and relating to fluid pressure displacement or force transmitters
Inventor: BERGEN STEPHEN ARCHBOLD
IPC: F15B5/00
Filed: 1955-11-28
Abstract: 806,749. Fluid-pressure servomotor-control systems. CAMBRIDGE INSTRUMENT CO. Ltd. Oct. 30, 1956 [Nov. 28, 1955], No. 33999/55. Class 135. A fixed pressure is supplied by a pipe 1, Fig. 1, to an amplifier 2 comprising concentric bellows 3, 4 having an outlet 6 controlled by a valve 7, the output being directed into a pipe 8. The displacement of a Bourdon tube, for example, is applied to a needle valve 10 controlling the output of a nozzle 11 mounted on two spring- urged bellows 12, 13 connected by an apertured plate 15 so that the bellows in a chamber 14 are subjected externally to nozzle pressure; amplifier output pressure is supplied to the inside of bellows 13 by a pipe 17 and the chamber 14 is open to the amplifier chamber around bellows 3, 4 by a pipe 18. The supply pressure to the nozzle 11 is taken from the amplifier output by a pipe 19 incorporating a fixed restriction 20. The amplifier is loaded by a spring 21 to ensure the transmitter is selfstarting. The effective area of bellows 4 is five times that of bellows 3. In a modification, the amplifier output is connected via a restriction 24, Fig. 2, to the chamber around the amplifier bellows as well as a fixed nozzle 25 controlled by a flapper 26 mounted upon bellows 27, the interior of which is open directly to amplifier output pressure by a pipe 28. The force to be measured is applied to a plate 29 on bellows 27 so that movement of the bellows 27 through the flapper 26 varies the back pressure in the nozzle 25 and hence the pressure in the amplifier chamber until the output pressure balances the applied force.