baber/WOPTO huggingface dataset:
Patent GB-784148-A (GB)
Title: Improvements in or relating to servo-assisted brake-operating mechanisms for road vehicles
Inventor: HEACOCK FREDERICK HENRY
IPC: B60T13/24
Filed: 1954-11-19
Abstract: 784,148. Fluid-pressure brakes. CLAYTON DEWANDRE CO., Ltd. Nov. 11, 1955 [Nov. 19, 1954], No. 33596/54. Class 103 (1). In order to prevent delay in the return of the high pressure liquid from the auxiliary cylinder of a servo-assisted brake operating mechanism due, for instance, to the servo-piston becoming sluggish, a valve member 1 is interposed between the auxiliary piston 2 and the forward end of the thrust rod 3 of servo-piston 4. The valve member 1 is slidably mounted in a rearwardly extending cylindrical skirt 5 formed on the auxiliary piston and the front surface 6 of the valve member is engageable under the action of the thrust-rod 3 with a raised annular seating 7 on rear face of head 8 of auxiliary piston. In operation, when the brake pedal is depressed, liquid under pressure passes from a master cylinder 11 through openings 9 and 10 in valve member 1 and auxiliary piston 2 respectively, into the auxiliary cylinder to take up the slack in the brakes. This pressure also acts on plunger 17 to actuate the control valve 16 to eventually open valve and bring the servomotor into operation; the servopiston moving the thrust-rod 3 forward to seat against coned valve seat 13 on valve member 1 to seal opening 9 and then to move the valve mechanism into seating engagement with seating 7 of auxiliary piston to close opening 10 and advance auxiliary piston 2 in its cylinder 12 to boost the pressure output. Upon release of the brake pedal, the auxiliary piston is returned to the position illustrated and the residual pressure in the auxiliary cylinder acts to unseat the valve member 1 and escapes through flutes 1a. The pressure on the valve member 1 also augments the force of the servo-piston return spring 20 to ensure the continuity of the servo piston's return movement.
Patent GB-828751-A (GB)
Title: Means for mounting vapour arc lamps within light transmitting envelopes
IPC: H01J61/30
Filed: 1957-10-29
Abstract: 828,751. Metal-vapour lamps. HACKBRIDGE & HEWITTIC ELECTRIC CO. Ltd., and KANEY, J. W. Aug. 21, 1958 [Oct. 29, 1957], No. 33679 /57. Class 39(1). A vapour arc lamp 11, Fig. 1, is mounted in an outer protective envelope 10<SP>2</SP> by means of metal sleeves 12 fitted over the lamp 11 and provided with prongs 14 which extend outwards to the ends of the envelope 10<SP>2</SP> and are bent back over its outer surface and held in position by a clamping ring 15<SP>1</SP>. The ends 18 of the lamp are inside the ends of envelope 10<SP>2</SP> and may be provided with quartz shields 19.
Patent GB-409616-A (GB)
Title: Improvements in water tube boilers
IPC: F22B37/22
Filed: 1933-12-01
Abstract: 409,616. Making steam generators. YARROW, SIR H. E., c/o Yarrow & Co., Scotstoun, Glasgow. Dec. 1, 1933, No. 33801. [Class 83 (ii).] Overlapping drums A, B of a water tube boiler are united by cutting slots A<1>, B<1> therein, interlocking one member with the other, driving in a key C, and then welding along the meeting line D.
Patent GB-1504274-A (GB)
Title: Electrical connectors and contacts therefor
IPC: H01R13/434
Filed: 1976-08-16
Abstract: 1504274 Contacts BUNKER RAMO CORP 16 Aug 1976 [14 Aug 1975] 34034/76 Heading H2E A contact assembly comprises a contact member one end 26 of which is adapted to mate with a complementary contact member and the other end 28 of which is adapted to receive a conductor, the contact member having a collar 30 and an annular groove at the end of collar 30 closest to end 28 of the contact member, the assembly further comprising a frusto-conical clip 20 of flexible synthetic resin, the clip 20 being mounted on the contact member with an inwardly directed flange 22 at its smaller end engaging the annular groove and the smaller end abutting the collar 30. As shown, the contact member is a male member and is retained in the body 40 of a plug by insertion of the assembly into a hole 38 of the body, the clip 20 being deformed on entry and expanding into an internal space 44 to effect retention, Fig. 9. The clip may in order to improve retention have a thickened wall, in which core the wall is internally fluted, Fig. 11 (not shown) or externally fluted, Fig. 13 and Fig. 15 (not shown). A slot may be provided at the small clip end for ease of fitting of the clip on the contact member.
Patent GB-194431-A (GB)
Title: Improvements in date and time printing stamps applicable for use in workmen's time recorders
IPC: G07C1/06
Filed: 1921-12-19
Abstract: 194,431. Roberts, A. H., and Willmot, A. S. Dec. 19, 1921. Date and fine printing. - An apparatus for stamping the time on cards, tickets, &c., operated by electric impulses transmitted from a master clock, comprises an electromagnet 1 electrically connected to the master clock and energized at prearranged intervals and provided with an armature 2 carrying a pawl 4 adapted to actuate a ratchet wheel of a gear train 3, 3A, and 5 adapted to close the circuits of auxiliary electromagnets 13, 13A and 13H arranged to actuate step-by-step timetype wheels 18, 18A. and 13B. The completion of the circuit is effected by pins 7 and 9 on the gear wheel 3 and a pin 11 on they wheel 5, which are arranged to make contact with projections on contact springs 8, 8 and 10, and 12 respectively. A single auxiliary electromagnet may be employed to operate the units wheel of a recording counting-mechanism. To record the time on a card or chart 21, an ink-ribbon 22 is pressed against the type-wheels by a rubber-covered platen actuated by a cam-lever or other operating means.
Patent GB-607975-A (GB)
Title: Improvements in and relating to electric tunnel furnaces
IPC: F27B9/30
Filed: 1945-12-17
Abstract: 607,975. Tunnel kilns. AKT. - GES. BROWN, BOVERI, & CIE. Dec. 17, 1945. No. 34158. Convention date, Oct. 31. [Class 51(ii)] In an electric tunnel furnace for firing ceramic ware, a portion of the crown 3 has offsets 4 with upwardly conically tapering fume-vents 5 disposed in the recesses so formed. Several vents may be disposed side by side in each recess.
Patent GB-798467-A (GB)
Title: Recovery of components of complex esters
Inventor: FOWLER BENJAMIN THOMAS
IPC: C07C69/34
Filed: 1955-11-30
Abstract: A mixture containing complex esters of the general formula A-(Glycol-Dibasic acid-)x-B, where A is a monobasic acid residue or a monohydric alcohol-dibasic acid residue, and B is a monohydric alcohol residue or a monobasic acid-glycol residue, with x about 1-6, wherein the components are linked by ester linkages, is heated with a monohydric alcohol and an esterification catalyst until at least a portion of the complex ester is transesterified to a free glycol and a diester, whereupon water is added, and the layers are separately distilled to recover diester and glycol.  The alcohol used in the reaction may be the same as that originally used in the manufacture of the complex ester; preferably at least about 2 mols. of alcohol per dibasic acid unit is used.  A temperature of 70-300 DEG  C. may be used, preferably about 150-250 DEG  C.  The reaction time is generally 0.5-10, preferably about 2-6 hours.  Suitable esterification catalysts are specified.  The complex esters may be those claimed in Specifications 659,103, 662,650 and 680,438, and lists of suitable components from which they may be prepared are given, including monobasic thioacids and glycols containing thioether linkages.  Specification 789,905 also is referred to.
Patent GB-940283-A (GB)
Title: Improvements in or relating to jigs for use in grinding
Inventor: SMITH PETER HAROLD
IPC: B24B41/06
Filed: 1961-09-25
Abstract: 940,283. Grinding electrical contacts. A. F. FLETCHER. Sept. 25, 1962 [Sept. 25, 1961], No. 34302/61. Heading B3D. A jig for grinding the surfaces of electrical contacts, particularly the " points " of contactbreakers, comprises a base 1 carrying two rollers 3 mounted on parallel spigots 2 and mounting means for supporting the contact member or arm 8 such that its contact surface 10 lies in a plane parallel to the spigots and tangential to the rollers so that an abrasive block or the like 11, Fig. 2, may be moved across the rollers in contact with the surface to be ground. The mounting means comprises an L-shaped support of metal or plastic, the " upright " member having a cut-out portion, to accommodate one of the rollers, and a recess 6 in which a block 5 may be positioned by screws 7 and to which the contact-carrying member 8 is clamped under the head 12 of a bolt 4, by a wing-nut 9. Alternatively the member 8 may be secured under the wing-nut on the opposite face of its supporting member. In a modified embodiment, the block 5 is adjustable slidably in the upright member of the support by screw-and-nut means. In further modifications, the bolt 4 is replaced by clips or clamps for holding the contact member 8, the rollers 3 are adjustably mounted, and additional rollers are provided aligned with the rollers 3.
Patent GB-988706-A (GB)
Title: Improvements in or relating to the production of concrete piles
Inventor: HOLMES ARTHUR BRANNAM
IPC: E02D5/50
Filed: 1961-09-26
Abstract: 988,706. Reinforced concrete piles. HOLMPRESS PILES Ltd. Sept. 26, 1961, No. 34362/61. Addition to 884,810. Heading E1H. An improvement in or modification of the method of forming a reinforced concrete pile according to the parent Specification consists in making a bore, with or without the aid of a lining or driving tube locating a reticular and tubular reinforcement 13 within the bore upon a hard standing, charging the bore with concrete, then effecting a consolidation of the concrete by driving a succession of members 15, 16, 17, 18 of reduced length down the centre of the concrete-charged bore, each succeeding member after the first in the series being used to drive home its predecessor, alignment between successive members being maintained by using the reinforcement as a guide, and leaving the succession of members encased within the consolidated concrete as a permanent part thereof. The members may be solid or hollow, the adjoining ends of successive members being provided with means (rebate 15a and flange 16a) to effect a mating union. Specification 621,450 also is referred to.
Patent GB-623423-A (GB)
Title: Improvements in or relating to gyratory crushers
IPC: B02C2/04
Filed: 1946-11-20
Abstract: 623,423. Crushers with gyratory heads. BJARME, J. A. Nov. 20, 1946, No. 34363. Convention date, Nov. 20, 1945. [Class 59] In a gyratory crusher, the upper crushing member 6 is supported by a member 7 secured to pistons 12 in a plurality of circumferentially-disposed cylinders 11, and to pistons 9 in a plurality of similarly-disposed cylinders 10. The member is normally urged downwardly, to an extent limited by adjustment bolts 8, by compressed-air in the cylinders 12, but if a large piece of material becomes jammed between the member 6 and head 5, the cylinders 12 are exhausted and compressed-air admitted to the cylinders 10 to raise the upper crushing member. The head 5 is driven by centrallylocated driving means 4.
Patent GB-931299-A (GB)
Title: An improved gear assembly
IPC: F16H37/02
Filed: 1960-10-10
Abstract: 931,299. Change-speed gear. KARL HULLER G.m.b.H. Oct. 10, 1960 [Aug. 24, 1960], No. 34604/60. Class 80 (2). Change-speed gearing for machine tools comprises a shaft 24 driving through a train of gears 33, 42, 43, 45 when a clutch 38 is engaged to transmit torque at a relatively high speed to a shaft 80 for rapid traverse in the machine tool, and a second train including the shaft 24 and a continuously variable-ratio expanding-pulley gear 50 driving through gears 56, 60, 73, 74, 75 when a clutch 70 is engaged to transmit torque to the shaft 80 for the normal tool feed. A motor 22 drives the shaft 24, through an overload clutch 30, and the expanding-pulley gear 50 is controlled by a hand wheel 55.
Patent GB-507436-A (GB)
Title: Improvements in prong paper-fasteners for use in binders, folders and the like
IPC: B42F13/08
Filed: 1937-12-14
Abstract: 507,436. Paper-fasteners. VOGEL, M. Dec. 14, 1937, No. 34634. Convention date, Sept. 8. [Class 44] [Also in Group XV] A flexible metal paper-fastener for use in binders, folders, and the like, has its prongs formed with transverse corrugations to strengthen them and prevent the formation of permanent kinks. The corrugations 12 are provided at the edges as shown or extend completely across the width, and may be provided only at the centre parts of the prongs. Longitudinal corrugations 15, 14 may be provided in the ends 13 of the prongs and in the central part 10 of the fastener respectively. The central part 10 is of greater width than the prongs. Locking slides mounted on a binding strip are associated with the fastener, each slide having a corrugated part and a projecting lip to engage the corrugations in the prongs.
Patent GB-823426-A (GB)
Title: Hydrocarbon conversion process
IPC: C10G15/10
Filed: 1956-11-13
Abstract: A petroleum oil having a boiling range within the range of 430 DEG to 1200 DEG  F., is subjected to irradiation by neutron and gamma rays, the neutron flux being from 1011 to 1014 neutrons/cm.2/sec., and the gamma ray flux being from 107 to 6 X 108 roentgens/hour, at a temperature between the range of -50 DEG  to 1000 DEG  F. in the presence of a subdivided metal and/or metal oxides for a period of 1 to 107 seconds, 20 to 50% of the neutrons being preferably fast neutrons.  The metals used are those, which upon neutron bombardment, form radioactive isotopes having half lives of less than 24 hours and the fraction of the given metal in said solids times its neutron capture cross-section is less than one barn. The subdivided solids have a particle size up to one inch preferably up to 1000 microns. Examples of the solids are the metals aluminium, magnesium, titanium and vanadium and their oxides silica, silica-alumina, platinum on alumina, boria on silica alumina, boria on alumina nickel on alumina, chromium on alumina.  Silica-alumina.-This catalyst contained 13% alumina on silica and was used in the form of 3/16 -inch diameter by 3/16 -inch high cylinders.  The fresh catalyst was calcined just before use and had a surface area of about 500 square meters per gram.  Platinum on alumina.-The platinum on alcoholate alumina catalyst was commercial Davison Type 1000 and contained about 0.6 wt. per cent and 0.6 wt. per cent chlorine on alcoholate alumina.  The catalyst was used in the form of 3/16 -inch diameter by 1/8 -inch high cylinders and had a surface area of about 300 square meters per gram and a pore size of about 50 to 80 angstroms.  The alumina was 99.95+% pure alumina prepared from aluminum alcoholate, used in the form of 1/8 -inch diameter granules.  The alumina was calcined just before use and had a surface area of about 300 square meters per gram and a pore size of from 50 to 80 angstroms.  Boria on alumina.-The boria on alumina catalyst was prepared by impregnating alcoholate alumina granules (Example III) with a water solution of boric acid, drying at 600 DEG  F., and calcining for 4 hrs. at 800 DEG  F.  The catalyst was used in the form of 1/8 -inch granules having a surface area of about 300 square meters per gram and a pore size from 50 to 80 angstroms.  The catalyst contained about 0.01 wt. per cent boron. Boria on silica-alumina.-The boria on silica-alumina catalyst was prepared by impregnating the silica-alumina catalyst used in Example I with a water solution of boric acid in the same manner as described above for boria on alumina.  The catalyst was used in pill form and contained about 0.01 wt. per cent boron.
Patent GB-428306-A (GB)
Title: Appliances for radio-active treatment of the face or body
IPC: A61M36/14
Filed: 1933-12-11
Abstract: An appliance for radio-active treatment of the face or body comprises a fabric envelope, secured to the body by rubber or other straps, or incorporated in corsets, brassieres or bodybelts, the envelope containing in separate pockets, a piece of material impregnated with radio-active substance and covered with sheet rubber, and a pad or plate of sponge rubber positioned on the outer side of the radio-active pad.  Between the two pads and in the outer pocket a piece of material impregnated with ethereal oils may be inserted. The radio-active pad is preferably smaller than the sponge rubber pad and its pocket is preferably stitched to the larger pocket.
Patent GB-1308841-A (GB)
Title: Alkoxy dinitroaniline compounds and their use as herbicides
IPC: A01P13/02
Filed: 1971-07-22
Abstract: 1308841 Dinitroaniline derivatives UNITED STATES BORAX & CHEMICAL CORP 26 July 1971 [5 Aug 1970] 34889/71 Heading C2C The invention comprises compounds of the formula where R 1  is alkyl of at least 2 carbon atoms, alkenyl, alkynyl or aryl and R 2  is H, alkyl, alkenyl or alkynyl or R 1  and R 2  represent a chain including 2-6 carbon atoms with which the nitrogen atom forms a heterocyclic ring, R 3  is alkyl of 1-6 carbon atoms, Y is O or S and Z is alkyl of 1-6 carbon atoms, halo or trifluoromethyl. The compounds may be prepared by reacting in substantially equimolar amounts an alkali metal alkoxide or thioalkoxide and the appropriate 3-halo-2,6-dinitro aniline or by aminating the appropriate 6-substituted 1,3- dialkoxy-2,4-dinitro benzene. The compounds may be used as herbicides.
Patent GB-1414873-A (GB)
Title: Apparatus for ion exchange type water softening
IPC: A47L15/42
Filed: 1973-07-23
Abstract: 1414873 Water softening EUROPE MFG TRUST REG 23 July 1973 [22 July 1972] 34899/73 Heading B1J Apparatus for ion exchange type water softening comprises a body of moulded plastics material defining a first chamber A for containment of regeneration salt and a plurality of side by side column like further chambers B, C, D for containment of ion exchange particles, successive ones of said further chambers opening to one another, a plurality of filter and partition elements of plastics material assembled in the body by interengagement of parts thereof, the filter elements 9, 21 arranged to act as retaining members for retaining salt and particles in the appropriate chambers while allowing flow of water therethrough, the partition elements 17, 17' serving with the walls of the further chambers to define a flow path whereby water will flow upwardly through each of the further chambers, conduit means 34 for supplying untreated water directly to the lower end of the first of the further chambers and 16 for removing treated water from the upper end of the last of the further chambers and further conduit means 38 for supplying water to the lower end of the first of the further chambers via the first chamber. The latter conduit is used for bringing about regeneration of the particles. The unit is intended for fixing inside the casing of a clothes- or dishwashing machine.
Patent GB-1525262-A (GB)
Title: Zwitterionic compounds of phosphinic acids
IPC: C07F9/30
Filed: 1975-08-22
Abstract: 1525262 Zwitterionic salts of phosphinic acids HOECHST AG 22 Aug 1975 [22 Aug 1974] 34977/75 Heading C2P The invention comprises (a) zwitterionic compounds having the general Formula (I):- wherein R is a non-aromatic hydrocarbon radical, R 1 , R 2  and R 3 , any two or more of which may be the same or different, each represents a hydrogen atom or a non-aromatic hydrocarbon radical and B 4  is a non-aromatic hydrocarbon radical which is unsubstituted or substituted by one or more aryl groups, and (b) zwitterionic compounds having the general formula:- wherein R, R 1 , R 2 , R 3 , any two or more of which may be the same or different, are as defined above, and R 5  is a non-aromatic bivalent hydrocarbon radical which is unsubstituted or substituted by one or more aryl groups and/or interrupted by one or more arylene groups. The compounds I and II may be obtained by reacting a compound:- with a compound of the formula B 3 R 4 NH or a compound of the formula R 3 NHR 5 NHR 3  respectively. The invention also includes salt derivatives of the defined compounds, e.g. the hydrochlorides. Examples are given for the production of compounds I in which R is CH 3 , R 1 , R 2  and R 3  are each H and R 4  is cyclohexyl and of compounds II in which R is CH 3 , R 1 , R 2  and R 3  are each H and R 5  is derived from bis-(4-amino-cyclohexyl)-methane, 1,3-diaminopropane and hexamethylenediamine respectively. An example is also given in which the hydrochloride salt (V) of the formula:- is obtained by reacting the 1,3 diamino propane derivative (IV) of the formula:- with ethanolic hydrochloric acid, the compound V being reconverted to compound IV by treatment with alcoholic KOH. The products I and II are useful as anti-static agents, primers for metallic surfaces, as disinfectants, and as flotation and emulsifying auxiliaries.
Patent GB-1006281-A (GB)
Title: Photoconductography using solid electrolytes
IPC: G03G9/06
Filed: 1961-09-29
Abstract: 1,006,281. Electrophotographic materials. EASTMAN KODAK CO. Sept. 29, 1961 [Oct. 25, 1960], No. 35097/61. Drawings to Specification. Heading H1K. [Also in Division G2] For use in electrolytic electrophotography using a solid electrolyte, a ZnO-in-resin photoconductive layer on an aluminium foil covered paper is overcoated by chemical or vapour deposition with a thin almost invisible layer of silver or aluminium having no appreciable lateral conductivity. The metal layer is used to improve contact with a layer of solid electrolyte during electrolytic development.
Patent GB-1433515-A (GB)
Title: Method of and apparatus for forming an accurately dimensioned metal strip
IPC: B21H8/00
Filed: 1973-07-24
Abstract: 1433515 Making profiled strip; rolling ANACONDA CO 24 July 1973 [30 Aug 1972] 35115/73 Headings B3M and B3A A profiled strip 12, Fig. 2, whose cross-section is substantially the same before and after rolling, is rolled between profiled work rolls 16 and 17, Fig. 3, supported by backing rolls 23 and 24, a raised portion 18 of one of the work rolls being accommodated in a recess 22 in the associated backing roll. A similar arrangement, Fig. 7, employs two work rolls 33 and 34 each having a raised portion 32 or 35. The initial strip may be formed from portions 13 and 14 welded together, or may be formed by rolling, skiving, routing, swaging, or partial machining. One or both work rolls, or one or both backing rolls, may be driven.
Patent GB-1359109-A (GB)
Title: Interchangeable-blade type razor
IPC: B26B21/08
Filed: 1972-07-27
Abstract: 1359109 Razors FEATHER SAFETY RAZOR CO Ltd 27 July 1972 [4 Sept 1971] 35164/72 Heading B4B An interchangeable-blade type razor comprises a blade holding portion 2 connected to a handle 1, a blade clamping member 10 connected by a hinge device 3b, 4, 12, 13 to the portion 2 and pivoted by a slider member 24 mounted in a guide way 9, 16 which is tapered such that upon movement of the slider the clamping member is pivoted to securely retain a blade 22 in the razor. The two parts of the hinge are held together by means of a threaded pin 3b screwed into a portion 4 of the hinge at one end, a pin 20 at the other end of the hinge engaging in a hole 3a in the handle 1. The guide way is of generally V-shaped cross-section adapted to accommodate a corresponding-shaped block (18), Fig. 5 (not shown), of the slider. The member 10 is moved to a non-clamping position by means of a spring 5. A new blade may be fitted into the razor by inserting a pin on an injector device, an alignment pin on the device being engaged in a hole 21, Fig. 1, provided in the razor.