baber/WOPTO huggingface dataset:
Patent GB-551973-A (GB)
Title: Improvements in or relating to machines for drilling hard metals and stones
IPC: B28D5/02
Filed: 1942-03-27
Abstract: 551,973. Percussive drills. BOLD, H. March 27, 1942, No. 4050. [Class 124] A machine for drilling diamonds, tungsten carbide, or like hard stones or metals comprises a frame 1 having a fixed lower part carrying a work spindle 9 which is rotated by a drivable spindle 14 on the frame and which is aligned vertically with a non-rotary drill spindle 13 slidably mounted in a fixed upper part of the frame, operating means being provided to raise the drill spindle and allow it to fall freely at pre-determined intervals during rotation of the work spindle. The latter may be slidable vertically and may be held in its uppermost position by an adjustable spring plunger 20. The drill spindle may be raised by an axially adjustable arm or disc 29 acted upon by a face cain 26 also rotated by the spindle 14, and it may carry a pointer 31 which co-operates with a scale on the frame and which slides in guides 33 to prevent rotation of the drill spindle. The spindle 14 may drive the spindle 9 and the cam 26 by means of pulleys 6, 8, 24 and belts or cords 18, 25, whilst the force of the blows may be increased by attaching weights to the upper end of the drill spindle.
Patent GB-931043-A (GB)
Title: Plant extract
IPC: A61K36/00
Filed: 1962-02-02
Abstract: 931,043. Plant extracts; medicines. P. COUDERC. Feb. 2, 1962 [Feb. 4, 1961], No. 4098/62. Class 81 (1). An aqueous or aqueousalcoholic extract of Chrysanthellum Procumbens Pers. is prepared by treating the plant with water or aqueous alcohol. The entire plants are dried, cut into small sections and, if desired, pulverized and then (a) boiled with water for 1 hour or (b) heated at 60 C. with aqueous alcohol, e.g. 40% aqueous alcohol, for 1 hour. The mass is pressed to separate the extract which is filtered and dried at 45-50 C., and then in vacuo to produce the solid extract. The dry extract is a greenish-brown powder having a faint odour of liquorice; it is soluble in water and its solution has a pH of 7.0 and exhibits a blue or blue-green fluorescence under ultra-violet light; it contains 1.33% N, 0.34% Fe 2 O 3 , 0.6% Mg, 1.07% Na with traces of P and Ca; it is not an alkaloid; it exhibits the infrared spectrum shown in Fig. 1. It has tonic and sedative properties and is useful as a gastrointestinal sedative. It may be administered along with conventional pharmaceutical excipients, e.g. as pills, tablets or aqueous solutions. It may be administered with N<SP>1</SP>-p-chlorophenyl- N<SP>5</SP>-isopropyldiguanide hydrochloride.
Patent GB-668849-A (GB)
Title: Means for dividing pulverous material into desired fractions
IPC: B07B7/08
Filed: 1949-02-15
Abstract: 668,849. Centrifugal machines. AKTIEBOLAGET ENKOPINGS VERKSTADER. Feb. 15, 1949 [May 31, 1948], No. 4106/49. Class 23 A classifier for grading pulverulent material by the opposing actions of centrifugal force and an inflowing air current comprises a rotary casing 6 having a separating chamber 20, an inlet passage for the air including a plurality of guide members 10, an outlet 25 from the chamber for air carrying fine particles, feed means 19, 12, 13 for the supply of the material to the chamber, and a receptacle 4 for the collection of coarse particles. The air is drawn through the classifier by fan blades 17, and the quantity of air is regulated by a member 7. Fine particles are collected in a gulley 5.
Patent GB-1101462-A (GB)
Title: Improvements in or relating to carpets and the like
Inventor: WOODHEAD ALFRED HARDY
IPC: D03D27/00
Filed: 1966-01-31
Abstract: A carpet fabric has the pile made of crimped trilobal or other non-circular filaments of nylon or polyester that have internal cavities.
Patent GB-791910-A (GB)
Title: Speed control system for small electric motors
IPC: H02P25/18
Filed: 1956-02-10
Abstract: 791,910. Automatic speed control. SINGER MANUFACTURING CO. Feb. 10, 1956 [March 16, 1955], No. 4229/56. Class 38 (4). [Also in Group XXXVII] In an arrangement in which the speed of a small series motor 10, 11 is controlled by a pair of relay contacts 15, 16 providing an intermittent short circuit around a regulating resistance 14, a coil 17 for operating the contacts is connected to be energized by the voltage unbalance occasioned by a change in the motor B.E.M.F. in a bridge circuit comprising the field winding 10, armature 11 and a pair of resistors 12, 13. The voltage and motor speed at which the relay operates is determined by the tension in a spring 22 which may be foot controlled through a lever 23. A rectifier 20 is connected in series with the relay coil, and a condenser 19 serves as a filter. In the practical arrangement described with reference to Fig. 2 (not shown), a plug-and-socket coupling is provided to the motor, and the resistors are housed in a separate container. A modified bridge arrangement in which the regulating resistance is connected between the motor field and armature, and the relay is connected between a tapping on the resistor and the pair of resistors is described with reference to Fig. 3 (not shown).
Patent GB-558255-A (GB)
Title: Improvements relating to the moulding in situ of concrete constructions
IPC: E04G11/24
Filed: 1942-03-30
Abstract: 558,255. Moulding concrete walls in situ. SCHULTE, E. A. A. March 30, 1942, No. 4247. [Class 20 (ii)] In course - by - course moulding of concrete walls in situ, a vertical support rod 16 for the shuttering passes through a hole in the cast wall 19, and in order to facilitate the raising and supporting of the rod to various levels, rectangular section blocks are inserted in the wall at intervals as it is built up, and the rod passes through the blocks. Each block is formed in two parts 7, 8 which, when united, provide a central hole 9 for the passage of the rod, and access to the hole is provided by a T- shaped cavity 10, 11 leading inwardly from one side. After the rod is raised, it may be supported in its raised position by a plate 17 placed in the upper portion of the cavity while slurry can be run into the cavity 11 to fill the vertical cavity 18 left in the cast wall. The hole is cast in the wall by a sleeve 15 surrounding the rod and adapted to be raised with the shuttering on the rod as the wall is cast. The rod 16 is steadied in the blocks by wedges 20, 21 driven into the upper portions 10 of the cavity the tube 15 being slotted to allow the passage of the wedges. The portions of the block are tied together by a wire tie entering a central groove 13, 14.
Patent GB-535285-A (GB)
Title: Improvements in and relating to walls, fences and partitions
IPC: E04B2/56
Filed: 1940-03-11
Abstract: 535,285. Walls &c. STEWART, D. C. March 11, 1940, No. 4483. [Class 20 (iv)] A wall fence or partition comprises precast concrete stanchions B placed perpendicularly upon and secured to precast concrete foundation blocks A or footings by means of steel or iron stirrups C, precast concrete wall slabs D having their vertical side edges received in vertical grooves B<SP>1</SP> precast in opposite side edges of said stanchions, and a capping F composed of precast concrete slabs placed upon the top of and secured to said stanchions. Parallel grooves B<SP>1</SP> may be formed in the stanchion, to allow a cavity wall to be built. Internal boarding E or plaster may be applied to the internal face of the wall, bituminous felt being first fixed to the slabs.
Patent GB-555232-A (GB)
Title: Improvements in or relating to modulated high frequency carrier wave signalling systems
IPC: G01R29/06
Filed: 1942-04-03
Abstract: 555,232. Monitoring. DALGLEISH, J. W., and PYE, Ltd. April 3, 1942, No. 4489. Drawings to Specification. [Class 40 (iv)] [Also in Group XL] In a modulated carrier-wave transmitter, oral indication of over-modulation is given to the operator by supplying a monitoring sidetone to a telephone or loud-speaker, the sidetone being supplied through an amplifier whose gain rapidly increases when over-modulation occurs. The increased volume may be accompanied by non-linear distortion. At the same time the modulation amplifier may give a decreased gain when the permitted modulation is exceeded.
Patent GB-694493-A (GB)
Title: Improvements in or relating to motor cycles
Inventor: HOPWOOD HERBERT
IPC: B62M25/00
Filed: 1950-02-22
Abstract: 694,493. Gear cases. BIRMINGHAM SMALL ARMS CO., Ltd. Feb. 7, 1951 [Feb. 22, 1950], No. 4497/50. Class 136(i) A motor cycle has driving and rear-wheel sprockets mounted outside a wheel-supporting frame formed by sheet metal plates 3, 5, the plate 3 adjacent the rearwheel sprocket 9 forming the wall of a casing and co-operating with a cover plate 17. The sprocket 9 is driven by a crankshaft 11 of the engine through a primary chain 13 and a secondary chain 15.
Patent GB-414438-A (GB)
Title: An attachment for supporting a small electric lamp on one or more fingers, the thumb, or wrist of the users hand
IPC: F16M13/04
Filed: 1933-02-15
Abstract: 414,438. Attaching electric lamps to the hand or arm. RICHARDSON, M. H., 59, Bell Street, Wolverhampton. Feb. 15, 1933, No. 4577. [Class 43.] A portable electric lamp holder is formed from a single strip of soft sheet metal or other sheet material, bent into a circle to form a rigid socket 1 for a separate electric lamp holder 2, and extended to form an integral loop 3 or 3<a> (which may be hook-shaped with an outwardly directed lip 3b) and which grips the finger, thumb, wrist or adjacent part of the user's hand or arm. The parallel portions 4, 5, or 4a, 5<a>, are held together by a clip 6, lugs formed on the side of the portion 4, rivets or screws. The separate lamp holder may be a cylindrical socket carrying contacts. The lamp holder may be fitted with an eye shade or reflector.
Patent GB-1512342-A (GB)
Title: Apparatus for displaying numerical value information
IPC: G09F9/302
Filed: 1976-02-05
Abstract: 1512342 Displays and code conversions OMRON TATEISI ELECTRONICS CO 5 Feb 1976 [20 Feb 1975 (2)] 04604/76 Heading G4H Apparatus for processing numerical information comprises a storage device for storing a code representing a number to be displayed, converting means for converting the code into first and second signals, and a display device which displays the number in the form of characters belong to different numerical languages in response to the respective first and second signals. In e.g. an electronic desk-top calculator, a multi-digit decimal number can be displayed on either or both selected manually) of two multi-segment displays which display Arabic numerals and Arabian language numerals respectively, each digit in turn being supplied in binary-coded form to a first converter which feeds the "Arabic" display and feeds a second converter feeding the "Arabian language" display, each converter using a transistor matrix to convert from coded to 1-out-of-10 form followed by another such matrix to convert from 1-outof-10 form to appropriately coded form. A second embodiment feeds the binary-coded digits directly to two converters, one feeding one display and the other feeding the other display. A third embodiment uses one converter and one display capable of displaying in "Arabic" mode of "Arabian language" mode, as selected by a manual input to the converter. Nixie tubes can be used in place of multi-segment displays, in which case the conversion arrangements are simplified. Display of Roman and Chinese numerals is mentioned.
Patent GB-1168848-A (GB)
Title: Voltage Tuned Oscillator
IPC: H03B5/18
Filed: 1967-01-31
Abstract: 1,168,848. Voltage controlled oscillators. KRUSE STORKE ELECTRONICS. 31 Jan., 1967 [25 March, 1966], No. 4619/67. Heading H3R. A voltage controlled oscillator comprises a rectangular cavity resonator 15 includes a central tuning line 20 which includes a pair of oppositely poled variable capacitance diodes 25 and 26 the junction of which is connected by an inductance 30 to a tuning voltage terminal 31. One end of line 20 is connected to the base of a transistor 40, the emitter of which is connected by a choke and resistance 46 to a negative potential terminal 47 and the collector of which is connected to a positive potential and capacitively coupled to the casing 15. The base of the collector is earthed through choke 50 and parallel resistance 51, and the line 20 is inductively coupled to a short-circuited strip line 6 connected to a R.F. output terminal. The diodes 25 and 26 are forwardly biased for part of the tuning range, and reverse biased to act as variable capacitors in the rest of the range.
Patent GB-862511-A (GB)
Title: An improved hinging device
Inventor: FERNBERG ERIC BIRGER
IPC: F16B2/24
Filed: 1958-02-12
Abstract: 862,511. Hinges and pivots; spring clips; catch fastenings. F.T. PRODUCTS Ltd. Feb. 6, 1959 [Feb. 12, 1958], No. 4631/58. Classes 44 and 65(2). A hinging device, Fig. 5, for connecting two members 30, 33 is made from a single strip of resilient material and comprises a U-shaped portion 20-23 embracing the edge of the member 30 and an open loop having flat portions 27, 28 and a curved flange 29 which co-operate, respectively, with the edge of the member 33 and with a slot 38 in the member to constitute a hinge. The device makes frictional contact with the member 33. and, in virtue of its resilience, tends to spring the member 30, which may be a printed circuit panel, towards either its fully open or fully closed position. The position of the "dead centre" may be varied by a suitable choice of the shape, size and strength of the device. At least one limb of the U is formed with prongs 24, 25 to grip the member 30, and recesses 35, 37 are formed in the members to locate the device. A catch, Fig. 3, made from a single strip of spring metal, is also provided.
Patent GB-578269-A (GB)
Title: Electron discharge apparatus
IPC: H01J25/12
Filed: 1942-04-09
Abstract: 578,269. Electron oscillators. STANDARD TELEPHONES & CABLES, Ltd. April 9, 1942, No. 4653. Convention date, April 11, 1941. [Class 39 (i)] In an electron discharge device of the velocity modulation type, the velocity modulating gap 18, Fig. 2, and the output gap 21 are provided between disc - shaped electrodes 16, 19 and conical electrodes 26, 27 with their wide ends adjacent. A retarding electrode 22 is an annulus disposed between the adjacent ends of the electrodes 26, 27. A modified arrangement is shown in Fig. 4, in which the input and output gaps are formed between frusto-conical stems on the discs 16, 17 and 19, 20. The retarding electrode 22 may be cylindrical or curved in longitudinal section. The input and output tuned circuits may be in the form of hollow resonators.
Patent GB-920279-A (GB)
Title: Method for refining iron using commercially pure oxygen
IPC: C21C5/34
Filed: 1960-02-10
Abstract: A method of converting pig iron into steel comprises insufflating a suspension of powdered basic reagents in commercially pure oxygen into the bath below the level of the molten metal, the oxygen being at a pressure of at least 20 kgs. per sq. cm.  The suspension may be blown in from the bottom or side of the converter through copper tuyeres and may comprise oxides or carbonates of the alkali or alkaline earth metals.  Up to 25% by volume of CO2 may be included in the blast for temperature control and at least a part of the powder may be injected in an auxiliary gas, e.g. CO2.  U.S.A. Specification 2,855,293 is referred to.
Patent GB-971187-A (GB)
Title: Production of piperidine
Inventor: GARDNER CYRIL
IPC: C07D295/023
Filed: 1962-02-07
Abstract: Piperidine and its N-alkyl derivatives are prepared by heating a mixture of a dialkyl glutarate, ammonia and hydrogen to a temperature of from 150 DEG  to 400 DEG C. at a pressure of from 50 to 500 atmospheres in the presence of a hydrogenation catalyst. Specified catalysts are those containing one or more of the transition elements.  Inert diluents may be present or the reaction may be conducted in the presence of an alcohol ROH, in which case the product will contain a high proportion of the corresponding N-alkyl-piperidine, R being the alkyl group. Examples are given.
Patent GB-266129-A (GB)
Title: Improvements in or relating to non-skid devices and land-grips for the wheels of self-propelled vehicles
IPC: B60C27/08
Filed: 1926-02-19
Abstract: 266,129. Boys, S. J. Feb. 19, 1926. Tread bands, projecticns, and surfaces-A detachable tread band for use with twin tyres, or other tyres having a central tread groove, comprises a circumferential chain 1 and cross-bars 3 passed through spaced links of the chain. Further to increase traction, additional channel plates 5 having central apertures 6 to clear the chain links may be fitted under some of the bars 3. The device may be fitted without raising the wheel from the ground the ends of the chain being connected after assemblage, by an adjustable fastener 2.
Patent GB-775322-A (GB)
Title: Improvements in or relating to photography
IPC: G03C11/08
Filed: 1955-02-17
Abstract: A composition for use in photography comprises a vinylpyridine polymer, a hydantoinformaldehyde condensation polymer and optionally water, a water-msicible organic solvent, a salt of a heavy metal which forms an insoluble sulphide, and an acid.  The pyridine polymer may be poly-2, 3-, or 4-vinyl pyridine, poly-2-vinyl-6-methyl or 2-methyl-5 vinyl, or 2-vinyl-5-ethyl pyridine or a copolymer of 2-vinyl pyridine and methyl acrylate or methacrylate, methylvinyl ketone, or acrylamide.  The condensation polymer may be a dimethyl hydantoin formaldehyde condensate.  The heavy metal salt may be the acetate, sulphate, nitrate, or formate of zinc, cadmium, lead, manganese, germanium, ziconium, or tin.  Organic solvents mentioned are methanol, ethanol, propanol, dioxane, acetone, and methylethyl ketone.  The acid may be acetic or propionic acid.  Specifications 684,592, 703,231 and 746,565, [all in Group XX], are referred to.
Patent GB-1415391-A (GB)
Title: Thyristor rectifier for high voltage
IPC: H02H7/125
Filed: 1973-01-31
Abstract: 1415391 Controlling and monitoring thyristors ALLMANNA SVENSKA ELEKTRISKA AB 31 Jan 1975 [1 Feb 1972] 4803/73 Heading H2F In a rectifier, e.g. for H.V.D.C., having a plurality of thyristors 1 in series, a lightemitting semiconductor device, 28 is associated with each thyristor 1 to indicate when the anode/cathode polarity is correct and when a pre-determined voltage exists at a selected point in the control circuit. Each thyristor 1 may be bridged by a main voltage distributing circuit 7, 8 and auxiliary voltage distributing circuits 9, 10; 11, 12, 13. Capacitor 22 charges via diode 16 and transistor 23. from the positive voltage across thyristor 1, discriminator 20 giving an output to gate 19 when capacitor 22 is sufficiently charged. Discriminator 21 checks that the anode voltage is positive. When a light signal is received by photo-diode 3 together with outputs from discriminators 20, 21, gate 19 provides zero output so that transistor 23 is turned off and 24 turned on, dicharging capacitor 22 via diode 26 into the control circuit of of thyristor 1. LED 28 is also energized. The signals from the various LEDs may be counted and corrective measures taken if the count is too low. In Fig. 3 (not shown), a separate capacitor is discharged into the LED in response to the correct outputs from discriminators 20, 21, irrespective of the receipt of light signals by photo-diode 3.
Patent GB-137163-A (GB)
Title: Improvements in axle bearings
IPC: B62D55/10
Filed: 1919-02-26
Abstract: 137,163. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). Feb. 26, 1919. Roller bearings; dust, excluding; oil, retaining. -An axle bearing for the wheels and rollers of chain-track and other vehicles comprises two rows of conical rollers 22 having outer races positioned by shoulders in a hub 24, and inner races independently adjusted by split screw collars 29 acting on the races 21 through distance-sleeves 27. which are encircled by packing-washers 26 confined by screwed caps 28. The bearings can thus be adjusted without disturbing the packing.
Patent GB-384259-A (GB)
Title: Improvements in draught and like excluders
IPC: E06B7/23
Filed: 1931-02-16
Abstract: 384,259. Lids. SAENGER, W., 148, Tiergartenstrasse, Kirchrode, Hanover, Germany. Feb. 16, 1931, No. 4845. Convention date, Feb. 18, 1930. Void [Published under Sect. 91 of the Acts]. [Class 18.] A strip a of spongy rubber of any suitable shape is applied to trunks &c. as shown, to exclude draught, dust, or the weather, or as a silencer.
Patent GB-718695-A (GB)
Title: An improved system or arrangement for the control of dynamo-electric machines
IPC: H02P7/06
Filed: 1951-02-28
Abstract: 718,695. Automatic control systems for dynamo-electric machines. LAURENCE, SCOTT & ELECTROMOTORS, Ltd., SCHWARZ, B., and SCHWARZ, K. K. Feb. 28, 1952 [Feb. 28, 1951], No. 4882/51. Class 38(4) In a retroactive automatic control system for a dynamo-electric machine, a D.C. control voltage is derived from an A.C. scurce through a rectifier which is provided with a high impedance dummy load so that current may flow in either direction in the external circuit. In Fig. 1 an A.C. commutator motor 1 has its stator fed directly from three-phase supply mains and its rotor fed from the same mains through an induction regulator 2. An A.C. voltage is produced representative of motor speed by combining the motor armature voltage K with a fixed voltage from a mains transformer 14 and a voltage dependent on motor load from a current transformer 12 associated with the input to the motor stator. This voltage is applied to a bridge rectifier 10 connected in opposition to a bridge rectifier 8 supplied through an adjustable ratio transformer 7 from a mains transformer 6, the resultant voltage being applied to a field winding 3f of a reversible servomotor 3 adjusting induction regulator 2. Resistances 9 and 11 in parallel with rectifiers 8. 10 facilitate reversal of current in field winding 3f. The armature 3a of servomotor 3 is supplied with substantially constant current through a current transformer 4 and rectifier 5 from the armature circuit of motor 1. Servomotor 3 thus automatically maintains the speed of motor 1 at a value determined by the setting of transformer 7. The following features are introduced in modifications:- (a) Association of variable ratio transformer 7 with transformer 14 instead of transformer 6. (b) Derivation of a voltage representative of speed from a tachometer generator driven by motor 1. The field of this generator is energized through a rectifier from the mains. (c) Supplying the armature of the servomotor through a condenser and rectifier from the mains. (d) Controlling the supply to the armature of the servomotor instead of its field. (e) Controlling the servomotor through a magnetic amplifier. (f) Derivation of a voltage representative of motor horsepower, to maintain the latter constant, by energizing the field of the tachometer generator at (b) above from transformer 12. (g) Adjusting a resistance 13 across transformer 12 simultaneously with transformer 7.
Patent GB-812407-A (GB)
Title: Improvements relating to chromium copper alloys
Inventor: ASHTON ARNOLD BROADBENT
IPC: C22C9/00
Filed: 1955-02-18
Abstract: A copper-chromium alloy having good strength properties, for use as an electrical conducting material, has a composition within the following range in per cent by weight: Cr 0.5-1.5, Ti 0.05-0.5, Cu the remainder.
Patent GB-1534035-A (GB)
Title: Method for welding polyethylene sleeve label to a polyethylene bottle
IPC: B29C63/42
Filed: 1976-02-09
Abstract: 1534035 Labelling OWENS ILLINOIS Inc 9 Feb 1976 [10 Feb 1975] 4944/76 Heading B8F [Also in Division B5] A polyethylene sleeve label 20 is attached securely to a polyethylene bottle 5 having a neck 7, a body 9 and a base 10, by supporting the bottle 5 with the label 20 therearound and welding the label 20 to the bottle 5 by heating means 30 spaced away from the label. As shown, a plurality of bottles 5, each with a label 20 therearound, are fed by a conveyer 15 past heating means 30 comprising, on each side of the conveyer, an infra-red heating element 34 with parabolic reflectors 32. The elements 34 are spaced 1-2 inches, preferably 1À5 inches from the label, and welding is accomplished in less than 25 seconds, e.g. 20-21 seconds.