baber/WOPTO huggingface dataset:
Patent GB-923875-A (GB)
Title: Fuel control system for an internal combustion engine
Inventor: HAASE ELMER AUGUST
IPC: F02M69/28
Filed: 1961-07-28
Abstract: 923,875. Charge forming devices. BENDIX CORPORATION. July 28, 1961, No. 27492/61. Class 7(3) [Also in Group XXIX] A fuel system for an I.C. engine comprises an air inlet duct 12 and a fuel inlet 76, opening into an induction passage 22, in which a valve 74 controls the flow of fuel in response to air flow and fuel flow through a metering device 16. Fuel from a pump 32 enters the metering device through one or more passages 38, 40, 42 under the control of a manually controlled valve 44. Flow through passages 40, 42 are controlled by restrictors 52, 54 and that through passage 38 by a valve 48 controlled by upstream and downstream pressure acting on a diaphragm 56. Fuel then flows through a power jet 60 and a valve 62 to a passage 34. The valve 62 is controlled manually by an engine throttle control 64 which also acts on a valve 26 in the air duct. Flow from the metering device 16 through passage 34 to the induction passage 22 is controlled by valve 74 connected to a spring loaded diaphragm 70 which is subjected on one face to the metered fuel in chamber 66 and on the other face to a servo force in chamber 68, this force being determined by the flow of fuel in passage 38 through passage 92, valve 140 and passage 72. The flow of fuel from chamber 68 normally takes place through an orifice 142, passage 144, chamber 164 of an accelerator device 146, and passages 148, 150. The valve 140 is controlled by movement of diaphragm 100, subjected on opposite faces to air pressure from a throat 106 of a Venturi 24 and the pressure upstream of this Venturi and by movements of a diaphragm 84 subjected to fuel pressure upstream of the metering device 16, through passage 92, and the pressure of metered fuel through passage 90. The diaphragms 84,100 are connected by a lever 118, pivoted at 120, a lost motion connection 130,132 being provided between the diaphragm 100 and the lever. A device 18 may be provided to compensate for air density changes. The accelerator device 146 comprises a valve 154 connected to a diaphragm 156 and a second diaphragm 158 actuated by the throttle control to open the valve 154 to allow a by-pass leakage from chamber 68 thus allowing an increased flow of fuel.
Patent GB-992962-A (GB)
Title: Process for the manufacture of peptide derivatives
IPC: C07K5/06
Filed: 1961-07-28
Abstract: Peptide hydrazides, derivatives thereof with protected amino, hydroxyl, mercapto or carboxyl groups, or salts of such hydrazides or their derivatives are prepared from an N-aminoacyl-N1-aminoacyl hydrazine containing at least one unsubstituted amino group and in which further functional groups may be protected, by rearranging said hydrazine by means of an organic acid which does not form isolatable salts with the hydrazine derivative, in the presence of an organic solvent which contains the acid in solution, and, if desired, eliminating any protective groups.  The N-aminoacyl - N1 - aminoacyl - hydrazine may in turn be prepared by reacting an aminoacid hydrazide (which may contain a protected amino-group) with an amino acid-N-carboxyanhydride. Rearranging acids include glacial acetic acid, propionic acid and pivalic acid. Solvents include dimethylacetamide, tetramethyl-urea, tetrahydrofuran, dioxan, dimethoxyethane, carbonic acid diethyl ester, pyridine, piperidine, dimethylformamide and N-acetylmorpholine. The examples describe the preparation of carbobenzoxyglycyl-D,L-phenylalanine hydrazide, carbobenzoxyglycyl - D-phenylalanine hydrazide, carbobenzoxyglycyl - glycine hydrazide, carbobenzoxyglycyl - D - leucine hydrazide, carbobenzoxy-L - valyl - L - tyrosine hydrazide, carbobenzoxy - L - phenylalanyl - D - valine hydrazide, carbobenzoxy - D - valyl - D - valine-hydrazide, carbobenzoxy - D - alanyl - D-valine hydrazide, carbobenzoxy - D - valyl-L - phenylalamine hydrazide, carbobenzoxyglycyl - D - valine hydrazide, tosyl - glycyl-L - phenylalanine hydrazide, tosyl - glycyl-D - valine hydrazide, benzoyl - glycyl - glycine hydrazide, benzoyl - glycyl - D,L - phenylalanine hydrazide, benzoyl - glycyl - D - phenylalanine hydrazide, benzoyl - glycyl - glycyl-D,L - phenylalanine hydrazide, benzoylglycyl - D - alanine hydrazide, carbobenzoxyglycyl - glycyl - D,L - phenylalanine hydrazide, L - valyl - L - valine hydrazide, carbobenzoxyglycyl - L - proline hydrazide, carbobenzoxyl-L - valyl - glycine hydrazide, tosyl - glycyl-D - phenylalanine hydrazide and tosyl - L-prolyl - D - phenylalanine hydrazide. Specification 992,961 is referred to.
Patent GB-1109912-A (GB)
Title: Improvements in or relating to optical objectives of variable equivalent focal length
Inventor: MERIGOLD PETER ARNOLD
IPC: G02B15/14
Filed: 1966-06-29
Abstract: 1,109,912. Zoom lenses. RANK ORGANISATION Ltd. June 29, 1966 [June 29, 1965], No. 27526/65. Heading G2J. A zoom lens has a first stationary positive member, second and third negative movable members and a fourth stationary positive member, the minimum separation between the second and third members occurring when the focal length of the objective lies between half and three quarters of its maximum value in the range of variation, and the focal lengths is and f c  respectively of the second and third members each lie numerically between 3 and 6 times the minimum value of the ratio of the focal length of the objective to the f-number. The movable divergent second member consists of a divergent meniscus compound component with its air-exposed surfaces convex to the front having a focal length between 4f B  and 8f B  followed by a divergent simple component having a focal length between 0-75f B  and 2f B , the total axial movement (i. e. the axial distance between the positions occupied at the two ends of the focal length range) lying numerically between 1À5f B  and 2-5f B . The movable divergent third member consists of a divergent compound component having a focal length between 1À5f c  and 3f c  followed by a divergent simple meniscus component with its surfaces concave to the front having a focal length between 1À5f c  and 3f c  and performing a total axial movement which lies numerically between 0-5f c  and 0À75f c . Focusing for different object distances is effected by movement of the rear portion only of the front member i. e. S 1  is variable. Optical data are provided for the example shown which has a zoom ratio of 16.
Patent GB-807933-A (GB)
Title: Improvements in or relating to the production of metallic coatings on the surfaces of metals
Inventor: CUTCLIFFE JOHN EARL
Filed: 1956-09-10
Abstract: The process of the parent Specification is modified by the use of "spheres" of glass, porcelain or other hard non-metallic material, at least 10 per cent by weight of the spheres having a diameter not exceeding 1.5 mm.  The term "spheres" includes materials having a spheroidal, ellipsoidal or other smooth shapes. A non-electrical coating of copper from its sulphate may be applied before the imparting step.
Patent GB-767104-A (GB)
Title: Defective-earth-circuit indicator device for electrical appliances
IPC: G01R31/50
Filed: 1953-10-08
Abstract: 767,104. Protective arrangements. SHIMKIN, 1. Oct. 8, 1953 [Oct. 12, 1952; March 17. 1953; July 26, 1953], No. 27672/53. Class 38(5) [Also in Group XXXVI] A defective - earth - circuit indicator arrangement for an electric appliance has a glow discharge indicator lamp 7 connected in a circuit 6 extending between a voltage carrying main lead 3 and the earth circuit 5 through the body of the appliance 1. the resistance of the indicator circuit being such that the minimum voltage to keep the lamp alight is not less than 40-50 volts below the supply voltage. If the resistance of the lamp is not sufficient, a series resistor 8 may be provided and the indicator circuit may also include a potentiometer 9 in parallel with the lamp 7 and resistor 8. Figs. 3 to 12 (not shown) illustrate various arrangements in which the lamp is housed in a wall socket, in a plug, between sections of a flexible cord. in the socket connector of an appliance or in an adaptor. In further arrangements the lamp-may be housed on the body of an appliance, Figs. 13-15 (not shown). Specification 427,183 is referred to.
Patent GB-261009-A (GB)
Title: An improved process for the manufacture of artificial horn from albuminous substances
IPC: C08L89/00
Filed: 1926-11-04
Abstract: 261,009. Deutsche Kunsthorn-Ges. Nov. 4, 1925, [Convention date]. Addition to 247,955. Albumen.-The process of the parent Specification, in which hardening agents are added to albuminous substances before or during plastification, and become operative after moulding, is modified by allowing a period of quiescence after moulding, and before drying. The article may be placed in a closed vessel and evaporation prevented, the temperature being maintained to assist the solution of the hardening agent.
Patent GB-1078789-A (GB)
Title: Improved master cylinder construction
IPC: B60T11/22
Filed: 1965-06-30
Abstract: 1,078,789. Container closures. SOCIETE ANONYME D.B.A. June 30, 1965 [July 3, 1964], No. 27807/65. Heading B8T. [Also in Division F2] A removable cover 50 of plastics material for the reservoir 14 of a brake master cylinder (see Division F2) has a female threaded portion 52, to engage correspondingly a male portion 54 on the reservoir body, and is formed with a groove 56 which may have, as shown, a triangular section in which is engaged the outer edge of the reservoir when the cover is screwed on, the plastics material being distorted thereby so as to seal the reservoir. Atmosphere is communicated via a hole 62 in the cover to the interior of a bellows 60 which follows the level of the liquid and prevents contamination of the latter.
Patent GB-1027252-A (GB)
Title: A guitar-type musical instrument with vibrato device
IPC: G10D3/14
Filed: 1964-07-07
Abstract: 1,027,252. Vibrato devices. C. L. FENDER. July 7, 1964 [June 5, 1964], No. 27926/64. Heading G5J. A guitar has a string terminating bar 30 to which are affixed two levers 32 to form a member of inverted U-shape which is rockable manually by a crank 57 about pivoting points 29 against restoring springs 34, whereby the string tensions may be varied to produce vibrato effects. A metal base-plate 26, screwed to a guitar body 10, has two openings 28, formed with knife-edges by countersinking from each side, through which pass levers 32, having co-operating V-sectioned annular grooves 36. The upper ends 37, Fig. 7 (not shown), of the levers are screwed into the bar 30 and may be adjusted by means of socket spanner holes 42. The strings are wrapped under the bar 30 and their ends are secured therein (Fig. 4, not shown). They pass over a bridge 25 carried on legs 51 which pivot in sockets 52 as the string tensions are varied by the vibrato device. The lower ends 38 of the levers provide anchorages for the eyes 39 of the springs 34, which are secured at their other ends in lugs 56. The levers are normally adjusted to be perpendicular to the plate, with the axes of the springs forming an acute angle with them. A compensating action is then obtained, i.e. the restoring moments due to the springs increase as the guitar strings are tensioned, and vice versa, Fig. 8 (not shown). An electromagnetic pick-up 14 may be fitted, and tone and volume controls 15, Fig. 1 (not shown).
Patent GB-392062-A (GB)
Title: An improved process for the conversion of alicyclic ketones into unsaturated aldehydes
Filed: 1932-10-07
Abstract: Unsaturated alicyclic aldehydes are prepared from saturated alicyclic ketones by first condensing them with a formic acid ester, converting the resulting hydroxymethylene compound by condensation with orthoformic acid ethyl ester into the keto-acetal, reducing the latter to the hydroxyacetal, splitting off water to the unsaturated acetal by heat treatment of the xanthogenic ester, and finally hydrolysing the acetal group. Examples are given of the preparation of 1 : 1 : 7-trimethylcycloheptene-2-aldehyde-3 from 1 : 1 : 7-trimethylcycloheptane-2- one (obtained by heating the thorium salt of 2 : 3-dimethylheptane-2 : 7-dicarboxylic acid in vacuo), and of a mixture of 1 : 1 : 6-trimethylcycloheptene-3-aldehyde-4 and 1 : 1 : 6-trimethylcycloheptene-2-aldehyde-2 from 1 : 1 : 6-trimethylcycloheptane-3- one.  In each case isoamyl formate is used as the formic acid ester, sodium and aqueous ether as the reducing agent, carbon disulphide in the presence of potassium and amylene hydrate (followed by alkylation with methyl iodide) for producing the alkyl xanthogenate, and sulphuric acid as the hydrolysing agent.  The Specification as open to inspection under Sect. 91 describes also the production of the mixture of 1 : 1 : 6-trimethylcycloheptene-3-aldehyde-4 and 1 : 1 : 6-trimethylcycloheptene-2-aldehyde-2 directly from the corresponding hydroxyacetats by treatment with thionyl chloride in the presence of dimethylaniline.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1278478-A (GB)
Title: Structural assembly for furniture, walls, and the like
IPC: A47B91/00
Filed: 1969-06-03
Abstract: 1278478 Shelving S A POUR L'ETUDE DE LA PROMOTION DES ENTREPRISES 3 June 1969 [31 May 1968 4 July 1968 16 Sept 1968 17 Sept 1968 18 Sept 1968 27 Nov 1968(2) 10 Jan 1969] 27967/69 Heading A4B [Also in Division E1] A structural assembly for furniture or for building walls, partitions or false ceilings comprises a plurality of spaced, parallel, elongate first elements, e.g. uprights 10, 12, Fig.1 interconnected by second elements, e.g. cross-bars 14, 16, 18, 44, arranged transversely of the first elements, each first element comprising a pair of U-section channels 60, 62, Fig.3, nesting one within the other, as shown, the flanges of the channels 60, 62 being resilient so that they resiliently grip an adjacent flange either by direct engagement, as in Fig.3, or through an interposed member 202, as shown in Fig.18 in which the channels are referenced 198, 200. Each first element may comprise more than two nested channels, Fig.4 (not shown). The uprights 10, 12 may be provided on their webs with V-shaped embossments 58, Figs.2 and 3, which may be welded to similar formations on an adjacent channel section to form a double upright 48 including two spaced apart first elements 50, 54 and 52, 56. The embossments 58 may be engaged by the hooked ends 146 of cantilever brackets or supports 108, Fig.17, for beams 112. Alternative forms of hook engagement of the beams 112 or supports 108 with the uprights are described, Figs.10-15 and 19 (not shown). In another embodiment, Fig.16, opposed supports 108 each have spaced portions 110 forming jaws which grip the upright 106, a cover 134 being fitted over the supports 108. In a further embodiment, Fig.20, facilitating on adjustment of the angle of inclination of a beam 112 to an upright, a support 180 pivotally carries a disc 185 with hooking tongues 182, 184 for engaging the upright, the disc 185 having holes 187 having a ratchet type locking engagement with protuberances on the face of the support 180. In a further embodiment, Fig.18, a partition, which may serve as a false ceiling, comprises panels 204 defining the second transverse elements and pairs of channels 198, 200 defining the first elements, flanges 202 of the panels being gripped between the resilient channel flanges.
Patent GB-649429-A (GB)
Title: Improvements relating to fluid pressure braking systems for tractor-trailer vehicles
IPC: B60T15/46
Filed: 1948-10-28
Abstract: 649,429. Fluid pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd. Oct. 28, 1948, Nos. 27976 and 27977. Convention dates, Nov. 5, 1947, and July 28, 1948. [Class 103 (i)] In a fluid pressure brake system for a tractortrailer combination, a valve device 24 is fitted in the brake pipe 2, 5 on the tractor whereby the application of the tractor brakes is initially delayed with respect to the application of the brakes on the trailer (not shown). When the driver's valve 1 is actuated, pressure fluid from the reservoir 7 passes by pipes 2, 5 direct to the trailer brakes or to a relay valve operating same. Until the pressure in pipe 2 acting in chamber 20 'has increased to a certain value, which may be about 0.5 kg./cm.<SP>2</SP>, no pressure is transmitted to the tractor brake cylinders 9 and 10. Thereafter, however, the piston 12 in the valve device 24 which is open to atmosphere at its base, is pressed down against spring 15 and air passes by passage 21 and pipe 8 to the brake cylinders 9, 10 without suffering any reduction in pressure. A ball valve 19 ensures that air may escape from the cylinders 9, 10, although the piston 12 may have reclosed the port 20, when the brakes are released. In a modification, co-operating grooves in the side of the piston 12 and its cylinder allow air to escape from the brake cylinders direct to atmosphere.
Patent GB-1199774-A (GB)
Title: Process for the Production of 3,5-Dimethylphenol
Inventor: PAYNE KENNETH RICHARD
IPC: C07C37/04
Filed: 1967-06-16
Abstract: 1,199,774. 3,5-Dimethylphenol. COALITE & CHEMICAL PRODUCTS Ltd. 31 May, 1968 [16 June, 1967], No. 27978/67. Heading C2C. 3,5-Dimethylphenol is prepared by hydrolysing 3,5-dimethylbenzene sulphonic acid obtained by the sulphonation of m-xylene. The source of m-xylene may be xylene fraction comprising o-, m- or p-isomers of xylene. If the content of m-xylene is low in the fraction, the o-, and p-xylenes are isomerized into m-isomer by sulphuric acid treatment at a temperature below 130‹ C. The sulphonation is preferably carried out in two steps; in the first step the temperature is below 130‹ C. and in the second step it ranges from 140‹ to 220‹ C. In a modification, m-xylene or a xylene fraction comprising m-xylene is sulphonated at a temperature such as to yield 2,4-dimethylbenzene sulphonic acid, the latter is rearranged to 3,5- dimethyl benzene sulphonic acid which is then hydrolysed.
Patent GB-662039-A (GB)
Title: Cutter loader unit for use in coal-mining
IPC: E21C27/02
Filed: 1949-11-03
Abstract: 662,039. Endless-chain mining-machines. ANDERSON, A., and ANDERSON, BOYES, & CO., Ltd. Nov. 3, 1949. No. 28190/49. Class 68 (i). A cutter loader unit for use in mining of the type described in Specification 624,806 is characterised in that the drive 25 to the shearing chain cutter 20 includes gearing 22 enclosed in a box 31 normally projecting transversely of the conveyer 18, said box being pivoted at 24 to the unit and being adapted to be swung through 180 degrees into line with the conveyer for lifting purposes.
Patent GB-170753-A (GB)
Title: Improvements in pumps for inflating pneumatic tyres and the like
IPC: F04B33/00
Filed: 1920-10-05
Abstract: 170,753. Spencer, F. Oct. 5, 1920. Actuating pumps by foot power. - A toggle-actuated pneumatic pump having either a fixed cylinder or piston is provided with a pedal lever which rotates about a fixed pivot, the piston or cylinder being reciprocated through links pivoted to the lever and either the piston or cylinder. Fig. 1 shows a pump comprising a cylinder 1 formed of metal tubing and mounted upon a base-plate 19 and having a piston with a hollow rod 7. The rod is secured to a member 8, Fig. 8, having trunnions 9 carrying rollers 10 which work upon a guideway 11. The guideway may be formed by a continuation of the lower part of an extension of the tubing forming the cylinder. The rod is reciprocated by means of pedal levers 14 and links 12, the pedal levers being mounted upon a fixed pivot 15 secured to a bracket 18 which is mounted upon the base-plate and the links pivoted to the pedal levers and the trunnions on the member 8. The outward stroke of the piston-rod is accomplished by a spring 17 one end of which is attached to the piston and the other to the pivot 15. A stopbracket 22 having an opening 23 through which the piston rod passes is secured to the base-plate so as to prevent the piston from being drawn out of the cylinder. The cylinder is closed at one end by a casting 2 having an outlet valve 5 and a delivery nozzle 4, and at the other end by a supporting-bracket 21 which may have a rubber pad against which the pedal levers abut. In a modification, the base-plate is formed of a casting having guideways for the rollers and aligned seatings for the brackets, and the piston rod bracket is provided with stops for the rollers. In another arrangement, the piston rod is secured to a crosshead having guide-rods secured to a bracket which embraces the cylinder and has trunnions carrying rollers which work within guides fitted at the sides of the cylinder.
Patent GB-1439161-A (GB)
Title: Digital thermometer and method of manufacture
IPC: G09F9/30
Filed: 1973-06-13
Abstract: 1439161 Making microcapsules ROBERT PARKER RESEARCH Inc 13 June 1973 [15 June 1972 16 April 1973] 28219/73 Heading B8C [Also in Divisions B2 D1 G1 and G5] In a method for making microencapsulated temperature responsive liquid crystals for digital reading thermometers (see Division G1), acid extracted pigskin gelatin (1À25 g.), having a bloom strength of 250-305 g. and an isoelectric point of pH 8-9, and 1À25 g. of gum arabic, are stirred with 125 g. of distilled water at 55 C. in a Waring blender to yield a solution of about pH 4À5. The pH is initially adjusted to 6À0 when the solution is formed by the dropwise addition of 20 weight per cent aqueous sodium hydroxide. To the solution is added a solution of 2 g. of cholesteryl propionate in 8 g. of cholesteryl oleate. The cholesteryl derivative materials are emulsified in the Waring blender vessel to an average droplet size of 10-50 Á and the pH slowly reduced by the dropwise addition of 14 weight per cent aqueous acetic acid. The addition of the acid is continued until the single, liquid walled, capsules cluster to form aggregates having diameters at about 25-100 Á. At this time, the pH is about five. The mixture is then chilled with an ice bath to below 10 C., while the agitation is continued. At 10 C., 0À6 ml. of a 25 weight per cent aqueous solution of pentanedial, is added to the blender vessel and the system stirred for about 12 hours while slowly allowing the mixture to warm to room temperature. At the end of that time, the capsule walls are firm and hardened and the mixture is poured through a sieve having openings of 74 Á. The material passing the screen is suitable for use.
Patent GB-333083-A (GB)
Title: Improvements in or relating to wardrobe fittings and the like
IPC: A47B61/02
Filed: 1929-09-18
Abstract: 333,083. Cotton, F. M., Hickmott, H. E., Robinson, T., and Ebrey, R. T. Sept. 18, 1929. Garment racks.-A two-part telescopic garment rail e, f is linked to the doors b of a wardrobe so that as the rail is withdrawn the doors open. A pivoted depending handle j on the end of the rail holds the doors closed.
Patent GB-618280-A (GB)
Title: Vertical tubular heat exchanger
IPC: F28D7/16
Filed: 1946-09-20
Abstract: 618,280. Tubular heat-exchangers; regenerators. AKT.-GES. FUR TECHNISCHE STUDIEN. Sept. 20,1946. No. 28259. Convention date, Sept. 22, 1945. [Classes 64(i) and 64(iii)] In a tubular heatexchanger for preheating a fluid medium, e.g. combustion air, by flue gases in contraflow, a vertical shell 1 is provided at its upper and lower ends with inlet and outlet headers connected by a nest of vertical tubes 3 fixed into upper and lower tube plates 11, 9, and the lower header communicates with a chimney tube 5 which is coaxial with the tube nest and is surrounded by a second tube 6, the annular space between the tubes 5, 6 communicating with the space around the tubes 3. The hot gases flow from an inlet 4 at the top end of the heat exchanger through the tubes 3, bottom header, and chimney 5, and the fluid to be heated flows from a second inlet 2 down through the annular space and up over the tubes 3 to the outlet 8. The tube plates 9, 11 are made thin to withstand thermal stresses the lower being supported on columns 10 and the upper connected to the shell 1 of the heat exchanger by a flexible length of tube 12 to allow for expansion. A part 13 of the chimney tube 5 is similarly made flexible.