baber/WOPTO huggingface dataset:
Patent GB-1429772-A (GB)
Title: Control systems for fuel systems for engines
IPC: F02D41/38
Filed: 1972-04-04
Abstract: 1429772 Automatic control of speed CAV Ltd 21 March 1973 [4 April 1972] 15356/72 Heading G3R In a system for controlling the fuel supply to an I.C. engine a circuit is provided which cuts off the supply of fuel to the engine if the voltage of a battery supplying power to the system falls below an acceptable level, unless a speed transducer inhibits operation of the circuit when the engine speed is below a predetermined value. In the system shown the output of an A.C. tachogenerator supplies a first diode pump circuit forming part of the speed control system and a second diode pump circuit. Above a certain engine speed the voltage on output capacitor 29 holds transistor 31 off so that transistor 39 can conduct when detector 8 registers a low voltage. Under starting conditions the voltage on capacitor 29 will be low and transistor 31 will conduct so that transistor 39 is held non- conducting. Transistor 39 when it conducts operates safety circuit 9 to control amplifier 17 to cut off the fuel supply to the engine. In a modification the first diode pump circuit may be used to provide the signal allowing transistor 31 to conduct. The control system is similar to that shown in Specifications 1416861 and 1416862.
Patent GB-163921-A (GB)
Title: Note indicators for pianos
IPC: G09B15/00
Filed: 1920-06-08
Abstract: 163,921. Siegel, S. June 8, 1920. Chord and note indicators; notation.-A noteindicator to be laid on a pianoforte keyboard comprises a plate 5 which rests on the rear parts of the white keys and has forwardly-projecting depressible tongues 7 bearing different pictures of common objects together with, if desired, their names and the names and musical signs of the notes they indicate. The black keys 21 project through slots in the plate 5, which is extended vertically at 9 and has a part 10 folded over as at 11 lying across the rear parts of the black keys. The part 11 similarly bears pictures of other objects in alignment with the black keys. In connection with the indicator and in lieu of music, a card bearing a series of pictures is used, so that by striking the tongues 7 or the keys, in the order corresponding to the order of the pictures on the card, a simple tune can be played.
Patent GB-932921-A (GB)
Title: Improvements in or relating to receptacles for holding liquids
IPC: A47G19/14
Filed: 1961-04-28
Abstract: 932,921. Portable vessels. O. A. C. VON MYHRE. May 28, 1962 [April 28, 1961], No. 15437/61. Class 66. In a receptacle for holding liquids, such as a jug, coffee pot or teapot, and having a body portion made of a frangible material such as porcelain, glass or brittle plastic, an intermediate resilient layer is dipped, sprayed or painted on the body portion and an outer protective layer of metal is electro-deposited on the resilient layer and on the body portion at the edges of the resilient layer to completely enclose the resilient layer. As shown, a jug 1 having an integral handle 2 and a spout 3 is dipped in rubber or plastic which is allowed to cool to form the layer 5, Fig. 2, and impregnated with metallic pigment 6 on which the metallic finishing layer 7 of nickel, copper, brass &c. is electro-deposited, the layer 7 extending at 8 within the openings of the jug. An additional finishing layer 9 of gold or chromium may be electroplated on the layer 7. The surface of the jug may be covered with glaze 4 and silver or bronze heat conducting paint may be baked into the glaze on all or part of the outer surface of the jug, before the application of the resilient layer. More than one resilient layer may be provided, one of which is asbestos painted on in liquid form, and a lid for the vessel may be similarly provided with a resilient layer.
Patent GB-1504694-A (GB)
Title: Benzo-bicyclononene derivatives
IPC: C07C217/74
Filed: 1974-04-08
Abstract: 1504694 Benzobicyclononene derivatives AKZO NV 27 March 1975 [8 April 1974] 15558/74 Heading C2C Novel compounds of the Formula I wherein R 1  and R 2  are hydrogen, C 1-6  alkyl, C 2-6  alkenyl, aralkyl in which the aryl moiety may be substituted by hydroxy, C 1-4  alkyl or C 1-4  alkoxy, or acyl derived from a carboxylic acid or R 1  and R 2  together with the nitrogen to which they are attached forms a 5- or 6- membered heterocyclic ring and X and Y are hydrogen, hydroxy, halogen, C 1-6  alkyl or alkoxy, nitro, trifluoromethyl or acyloxy where acyl is as above, and salts thereof may be prepared by (1) reacting a compound of the Formula II with formamide, N-alkylformamide or N,N- dialkylformamide or an amine R<SP>1</SP> 1 R<SP>1</SP> 2 NH or a salt thereof, wherein R<SP>1</SP> 1  and R<SP>1</SP> 2  are as defined for R 1  and R 2  with the exception of acyl, in the presence of a reducing agent, (II) reducing an imine of the Formula IV or a salt thereof wherein R 3  is hydrogen, hydroxy, C 1-6  alkyl or alkoxy, or an ar-C 1-6 - alkyl in which the aryl moeity may be substituted by hydroxy halogen or C 1-4  alkyl or alkoxy, (III) converting the hydroxyl group of a compound of the Formula V into a suitable leaving group and then reacting the product with an amine R<SP>1</SP> 1 R<SP>1</SP> 2 NH optionally followed by hydrolysis of an acylamino group or reduction of the same moiety, or acylation of a primary or secondary amine, hydrolysis of alkoxy groups to hydroxy groups, methylation of a primary or secondary amine and/or forming an acid addition salt thereof, and at an appropriate stage, if required separating the diasteroisomers and/or enantiomers thereof. Benzo(b)bicyclo[3,3,1]nona - 3,6a(10a) - diene- 11-one is prepared by reacting #-tetralone with pyrrolidine to form #-tetralone pyrrolidine enamine which is reacted with acrolein to yield 4 - hydroxy - benzo(b)bicyclo[3.3.1]nonen - 11 - one either as a mixture of endo and exo epimers or as the pure exo epimer. The mixed epimers are esterified either with methane sulphonyl chloride or p-tolene sulphonyl chloride and the esters treated with base to yield the required compound. 11 - p - Tosyloxy - benzo(b)bicyclo[3.3.]nona- 3,6a(10a) - diene is prepared by reducing benzo(b)bicyclo[3.3.1]nona - 3,6a(10a) - dien- 11-one to the 11-hydroxy compound and esterifying this product with p-tosyl chloride. Pharmaceutical compositions of the compounds I with the usual excipients show anorectic and anti-depressant activity when administered orally or parenterally.
Patent GB-993667-A (GB)
Title: Preparation of improved soft cheeses
IPC: C11C3/04
Filed: 1962-04-24
Abstract: Soft cheeses of improved stability are obtained when there is added to the milk during their preparation a product obtained by transesterification of sucrose with an edible natural triglyceride or with a lower alky ester of an edible aliphtic acid containing from 6 to 30 carbon atoms.  The product is added to the milk in the proportion of 0.05%-1%, based on the weight of the milk. Specification 912,595 is referred to.
Patent GB-375961-A (GB)
Title: Improvements in pistons for single acting internal combustion engines
IPC: F02F3/00
Filed: 1931-05-28
Abstract: 375,961. Pistons. BLACKSTONE, G. M., CARTER, F., and CARTER, E., Rutland Engineering Works, Stamford, Leicestershire. May 28, 1931, No. 15607. [Class 122 (i).] In a piston wherein the head 1 is separated from the oval skirt 2 by a slot 8 and supported from the bosses by a structure 6 separated from the lateral walls of the piston, the lower end of the said structure is integral with an arcuate web 5 connecting the bosses. The structure 6 may be of H form. Heat is thus conveyed to the centre of the web 5 ensuring expansion of the skirt along its minimum diameter, the major diameter remaining approximately constant.
Patent GB-1254396-A (GB)
Title: Four-component objectives
Inventor: KINGSLAKE RUDOLF
IPC: G02B13/24
Filed: 1970-04-02
Abstract: 1,254,396. Objective lens system. EASTMAN KODAK CO. April 2, 1970 [April 2, 1969], No.15638/70. Heading G2J. An optical objective having a centrally located diaphragm D comprises, from front to rear, a biconvex element L 1 , a meniscus element L 2  concave towards the diaphragm and air-spaced from a biconcave element L 3 , the diaphragm, a further biconcave element L 4  air-spaced from a meniscus element L 5  concave towards the diaphragm, and a biconvex doublet L 6  with a cemented surface concave towards the diaphragm. The thickness of each biconcave element is at least 8À5% of the focal length of the objective, and its spacing from the corresponding meniscus element is at least 2% of the focal length. Each element has a refractive index greater than 1À6. A table of limiting data is given, together with three tables of specific data.
Patent GB-253945-A (GB)
Title: Improvements in and relating to the coating and filling of natural teeth or artificial teeth, or dentures, within the mouth
IPC: A61C5/50
Filed: 1926-06-21
Abstract: 253,945. Maurer, J. June 19, 1925, [Convention date]. Teeth, stopping; teeth, artificial. - Natural or artificial teeth are filled or coated, and dentures such as crowns and bridges are repaired in the mouth by spraying on to them, by means of an air current, powdered material, such as metal, porcelain, or celluloid, which has been transformed into a paste-like state by heating. The spraying apparatus provides an air current to take up the powdered material and pass it through the heating means, and a second, stronger, air current which mixes with and cools the first current, carrying the heated material, at the nozzle of the apparatus. In the form shown in Fig. 1 powder from a hopper 7 is passed, by compressed air issuing from nozzles 11, through a flexible tube 14 to a tube 15 heated by the passage of a current of electricity. The tube 15 is surrounded by an outer tube 19 through which a second current of compressed air is passed so as to mix with and propel the powdercarrying air from the heating tube. The heating tube is surrounded near its outlet by a hood 23, Fig. 4, having an insulating coating 24 and serving to prevent cooling of the tube 15 by the surrounding air current. A modified nozzle delivers the powdered material through an opening at right-angles to its main axis, and in a further modification the resistance tube 15 is replaced by a non-conducting tube surrounded by a high-frequency coil which serves to heat the metallic particles by induction. The supply of powder from the hopper 7, Fig. 1, is regulated by a valve 5 which is caused to vibrate by reason of its connection to an iron core 2 mounted within a coil 1 through which an alternating current is passed. The valve is normally held closed by a spring 4, and its operating rod 3 passes through a stuffing box 9. In a modified construction, Fig. 5, the valve-operating rod 3 is connected to an armature 34 mounted on a diaphragm 31 and actuated by an electromagnet 35. A pipe 32 may be provided to equalize the pressure on the two sides of the diaphragm. The Specification as open to inspection under Sect. 91 (3) (a) states also that instead of using powder the coating material may be used in the form of wire which is divided into fine particles by known, but unspecified. methods. This subject-matter does not appear in the Specification as accepted.
Patent GB-529849-A (GB)
Title: Improvements in anchor nuts and the manufacture thereof
IPC: B21K1/70
Filed: 1939-05-26
Abstract: 529,849. Forging and punching nuts. ELASTIC STOP NUT CORPORATION. May 26, 1939, No. 15724. Convention date, May 26, 1938. [Classes 83 (i) and 83 (iv)] A nut with one or more laterally projecting lugs is made by upsetting one end of a length of bar stock and trimming the flange so formed to the desired contour. The stock is fed through a die 136 and a blank is cut off and transferred to the upsetting position by a pivoted arm 148. The reciprocating head 52 of the press is provided with a transversely reciprocated holder 64 fitted with an upsetting-punch 100 having a countersinking-portion 104 and a trimming- punch 106. Projections 116 on punch 106 are forced into the upset flange when a working stroke is made with the punch aligned with the upsetting-die 70, the punch transferring the blank to a position of alignment with the trimming die 92 during the return stroke of the press. An ejector pin 76 located in the die 70 is operated by a cam 84 actuated in timed relation with the machine by a sprocket 90. The die 92 is fitted with a spring loaded ejector pin 94 and comprises shearing projections 118 for cooperating with the punch. A pivoted stripping fork 122 is operated by the projection 132 to eject the waste part of 'the flange. The nut may be provided with a locking washer of vulcanized fibre.
Patent GB-111839-A (GB)
Title: Means for Protecting Vessels from Mines.
Inventor: GERRIT LOUIS GOEDHART
IPC: B63G9/04
Filed: 1917-10-29
Abstract: . 111,839. Goedhart, G. L. Oct. 28, 1916. [Convention date]. Void [Published under Sect. 91 of the Act]. Protecting; torpedo screens.-To protect vessels from mines, a steel rope or cable 10, immersed near the level of the keel, is stretched between booms 1, 6, 7 by means of winches. Devices 13 are provided to render the mines inactive, or they may be detached from their anchoring chains by cutting gear. The booms may be of T-section and supported by pivoted arms; they are stayed laterally by systems of cables 3, 4.
Patent GB-1134514-A (GB)
Title: An improved rotary-scythe mower
IPC: A01D34/66
Filed: 1966-04-07
Abstract: 1,134,514. Rotary-scythe mowers. MASCHINENFABRIK FAHR A.G. 7 April, 1966 [9 April, 1965], No. 15765/66. Heading A1F,  A rotary-scythe mower for rear- or sidemounting on a tractor includes a plurality of rotary drums (10) with cutters (26) at their lower ends disposed in staggered formation on opposite sides of a supporting beam (7) carried by the tractor (1), the cutter-drums having V-pulleys (22) at their upper ends which are entrained sinuously by a belt having a V-profile on both sides so that alternate sides of the belt engage adjacent pulleys to drive adjacent drums in opposite directions. The drums rest on the ground through non-rotating domes (13). The belt (19) is driven by bevel gearing from a lay-shaft (8) on the machine, itself driven from a pulley (4) on the attachment frame (2), carried by the tractor hitchlinks, which carries the supporting beam (7). The pulley (4) is driven from the tractor.
Patent GB-1254929-A (GB)
Title: Improvements in or relating to digital computers
Inventor: SHARP JOHN JOSHUA
IPC: G06F12/06
Filed: 1969-03-26
Abstract: 1,254,929. Data processing. STANDARD TELEPHONES & CABLES Ltd. 5 Nov., 1969 [26 March, 1969], No. 15780/69. Headings G4A and G4C. In an electric digital computer data is stored in each memory as n-bit words, m such memories being provided, and the data processor is provided with an input register having a capacity which is an integral multiple, m, of n-bits, the interconnections between the memory and the register being such that, dependent on the requirements of the programme being executed, a single n-bit word or an integral number of such words less than or equal to the capacity of the register may be entered in the register for processing. In the case where more than one word is to be loaded in the register the words concerned are simultaneously called from different memories. Fig. 2 shows a decoder 10 which activates one of its output lines 11, 12 for selecting a memory in response to the address stored in the portion 8 of the register. The switch 13 may be used to interconnect the decoder output lines in order to simultaneously address two or more, up to m, of the memories.
Patent GB-794159-A (GB)
Title: Substituted piperidine-4-carboxylic esters
Filed: 1956-05-22
Abstract: The invention comprises compounds of the formula <FORM:0794159/IV (b)/1> and acid addition salts thereof, wherein R is a methyl or ethyl group and their preparation by reacting a 4-phenyl-4-carbo (methoxy or ethoxy) piperidine acid addition salt such as the carbonate with a b -phenylethyl halide, for example b -phenylethyl bromide, preferably in a lower alkanol such as ethanol.  The compounds and their acid addition salts are used as analgesics. Examples describe the preparation of (1) N - (b  - phenylethyl) - 4 - phenyl - 4 - carboethoxy-piperidine and its hydrochloride, sulphate, phosphate, citrate, oxalate and hydrobromide; and (2) N-(b -phenylethyl)-4-phenyl-4-carbomethoxypiperidine and its hydrochloride, sulphate, phosphate, citrate, oxalate and hydrobromide.
Patent GB-544925-A (GB)
Title: Improvements in driving means for reels on which material is coiled
IPC: B65H59/38
Filed: 1940-10-29
Abstract: 544,925. Transmitting mechanical power by electromagnetic clutches ; automatic control systems for winding reels. ENGLISH ELECTRIC CO., Ltd., and CARNEGIE, H. S. Oct. 29, 1940, No. 15831. [Classes 35 and 38 (iv)] Tension in winding strip and like material 1 on a reel 3 is maintained substantially constant as the diameter of the reel increases by driving the reel through a magnetic slip coupling 4 comprising a field system 4a rotating relatively to a secondary system 4b, having a polyphase winding of the squirrel cage type with incorporated high resistance, or of the slip-ring type with external high resistance the coupling having a drooping speed-torque characteristic approximating to a hyperbola over the working range thus being obtained by suitable relationship between no load speed, excitation and secondary resistance. One member may be geared to a mill and the other geared to the reel, or a separate motor may drive the coupling. A jockey roller over which the material passes may adjust the excitation or secondary resistance, or both, in accordance with any change in tension. The secondary circuit resistance may vary in accordance with reel speed. To eliminate the reaction of the secondary current on the primary flux a bucking exciter 9 may be included in the field circuit and driven at the speed of the secondary inducter ; the excitation may be increased with slip by a de-compounding winding 9b fed from the secondary circuit through current transformers and rectifiers. An over-compounded independently driven exciter may be used alternatively. A voltmeter 15 indicating strip tension may be connected across a  dynamo 14 driven by the secondary element of the coupling or the reel and excited by direct current similarly derived from the secondary circuit, its calibration being adjusted by a potentiometer 17 according to strip speed. Specification 544,941 is referred to.
Patent GB-1291663-A (GB)
Title: Road sweeper conveyor
IPC: E01H1/02
Filed: 1971-05-19
Abstract: 1291663 Road sweeping machines WAYNE MFG CO 19 May 1971 [4 Sept 1970] 15897/71 Heading E1G In a road sweeping machine debris swept up by brush 14 is elevated to a receptacle by a rotary elevator 26 comprising at least two flexible radially extending arms 33 spaced longitudinally of the drive shaft 27 and interconnected at their outer ends by a squeegee 38. The arms 33 are made of rubber and there is preferably one at each end of the shaft and one in the centre.
Patent GB-590936-A (GB)
Title: Improvements relating to laminated springs for vehicles
IPC: B60G11/12
Filed: 1944-09-07
Abstract: 590,936. Hinges. WOODHEAD & SONS, Ltd., J., and CARVER, H. R. Sept. 7, 1944, No. 15932/46. Divided out of Complete Specification of 590,887, [Group XXXII]. [Class 65 (ii)] [Also in Groups XXII and XXXII] Relates to a laminated vehicle suspension spring of the kind pivoted at each end about a fore-and-aft axis on a trunnion 2 carried by a block 1 pivotally mounted on a supporting pin fixed to the vehicle chassis. According to the invention, the trunnion block 1 consists of an unhardened metal core, e.g. of mild steel, on which is shrunk a metal casing 3 which is hardened during the shrinking process, and a bush 5, adapted to engage the supporting pin, is pressed into a hole 6 in the block 1 and extends through holes 4 in the casing 3 which are formed therein before the casing is hardened and are slightly larger than the outside diameter of the bush.
Patent GB-1416682-A (GB)
Title: Electric apparatus for supplying current pulses to a load  device
IPC: H02P7/29
Filed: 1972-10-19
Abstract: 1416682 Control of D.C. motors PRINTED MOTORS Ltd 19 Oct 1972 [9 Sept 1971] 16030/75 Divided out of 1416681 Heading H2J A low inertia motor 3, for example of the printed circuit type, is supplied with pulses of direct current from a rectified A.C. source 1, 2 by means of thyristors 6-13 and a capacitor 4 connected as shown, the arrangement being such that firing of thyristors 6, 13 or 8, 10 causes D.C. to pass through the motor 3 in one or other direction and charge the capacitor 4 until the thyristors turn off due to lack of holding current, after which thyristors 9, 11 or 7, 12 are fired to discharge the capacitor through the motor to produce current in the same direction as before, the charge/discharge cycle being repeated to give current pulses at a frequency determined by the trigger control unit 5 providing firing signals a-d for the thyristors. Unit 5, motor 3 and its thyristor-capacitor supply circuit may form part of the motor control apparatus of Specification 1,416,681, the firing signals being produced at a frequency up to 4 kHz and the capacitance of capacitor 4 being chosen with reference to the frequency and the resistance of the motor windings, typical values being given.
Patent GB-568472-A (GB)
Title: Improvements in or relating to commutators for dynamo electric machines
IPC: H02K13/00
Filed: 1943-10-01
Abstract: 568,472. Commutators for dynamoelectric machines. HOOVER. Ltd.. and WHITE, A. W. Oct. 1, 1943, No. 16100. [Class 35] A commutator is made from superimposed conducting laminµ held together prior to and whilst being set in a moulding composition or united by such a composition to a central core or bush.. In the form shown, the aligned annuli have projections A<SP>1</SP> which become embedded in the moulded material and the slots for separating the segments are cut between these projections. The annuli may have interengaging recesses G and projections F<SP>1</SP> to preserve their alignment, or they may be welded or soldered together.
Patent GB-529477-A (GB)
Title: Improvements in and relating to refrigerator cabinets
IPC: F25D23/08
Filed: 1939-06-01
Abstract: 529,477. Refrigerators. BRITISH THOMSONHOUSTON CO., Ltd. June 1, 1939, No. 16163. Convention date, June 1, 1938. [Class 29] Inner and outer metallic liners 13, 14 of a refrigerator cabinet are separated by spacers 20, and a breaker strip 15 connecting the liners is retained by strips 16 fastened to the liners by screws 21, which also serve to secure the spacers. The spacers of non-metallic, non- hygroscopic material are fastened between flanges 17, 18 on the liners which have depressions 22 for the heads of the screws 21. Each retaining strip 16 has depressions adapted to fit into the depressions 22 and the strips are secured by the screws 21 which come flush with the surface of the strips. Flanges 23 on the retaining strips engage the edges of the insulating breaker strip 15. In assembling, one of the retaining strips is secured in place with its flange 23 bent upwards as shown in dotted lines; the breaker strip is then placed in position and the flange bent into the engaging position. On the door the outer retaining strip 16 extends partly across a groove 24 extending around the edge of the. outer liner 14 to retain the anchoring bead 25 of a door sealing gasket 26.