baber/WOPTO huggingface dataset:
Patent GB-629073-A (GB)
Title: Improvements in or relating to polarised electromagnetic devices
IPC: H01H51/22
Filed: 1947-10-28
Abstract: 629,073. Electromagnetic relays. ERICSSON TELEPHONES, Ltd., and DISTIN, L. S. Oct. 28, 1947, No. 28722. [Class 38(v)] In a polarized relay the armature consists of two magnetic portions 2, 3 separated by a non-magnetic portion 4 and is arranged between the poles 6, 7 of a permanent magnet 8 with the bifurcated poles 11, 12 of an electromagnet 10 on either side of it. Thus the flux from pole 6 passes through portion 2 and then splits into two parts through the poles 11, 12 reuniting to pass through portion 3 to the other pole 7. The armature is mounted on a blade spring 5 which may hold it normally in a central position. It will then be deflected one way or the other according to the direction of current through the electromagnet. In a practical construction, Fig. 4, the armature, here mounted on a blade spring 14 fixed at its ends carries a contact 34 movable between two fixed contacts, not shown. In a modified construction, the contact 34 may normally engage a fixed contact so that the armature is unsymmetrically mounted and current in one direction produces no effect.
Patent GB-1393140-A (GB)
Title: Bladder for rotary actuator
IPC: F15B15/10
Filed: 1972-08-09
Abstract: 1393140 Rotary actuators GREER HYDRAULICS Inc 9 Aug 1972 [5 May 1972]  28826/74 Divided out of 1393139 Heading F1F A bladder for a rotary actuator forming the subject-matter of this Specification is identical to that described in Specification 1393139, and the claims are concerned with such a bladder having a substantially cylindrical body portion and a closed curved end portion, which moves in the direction of its curved axis on expansion of the bladder by pressurized fluid.
Patent GB-659565-A (GB)
Title: Improvements in or relating to the electrolysis of alkali-metal salts
IPC: C25B1/36
Filed: 1949-11-10
Abstract: 659,565. Electrolysis of alkali-metal salts. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. Nov. 10, 1949, No. 28879. Convention date, Dec. 27, 1948. [Class 41] In the electrolysis of alkali-metal salts, using a mercury cathode, the mercury runs over an inclined substantially flat base which is parallel with an inclined anode and a diaphragm, the inclination with respect to the horizontal being between 1/ 50  and <SP>1</SP>/ 5 , and preferably being <SP>1</SP>/ 10 . As shown, a slightly-inclined rectangular iron base 1 is provided with a supply pipe 2 and a discharge pipe 3 for mercury 4. Longitudinal strips of insulating material support a diaphragm 5 which may consist of a fabric impregnated with rubber latex. Above the diaphragm is a perforated lead anode 6. A collecting tank 8 is connected to the base 1 by screws. The electrolyte may be supplied through an inlet 12 and discharged through an outlet 10. Part of the electrolyte may also be discharged through an outlet 11 beneath the diaphragm. Alternatively the electrolyte may be introduced through the opening 13, and discharged wholly or partly through the outlet 10. The base 1 may be formed with grooves at right angles to the flow of mercury to facilitate distribution thereof. Specification 471,912 and German Specification 701,771 are referred to.
Patent GB-1397934-A (GB)
Title: Pulverizer with satellite spacer assembly
IPC: B02C15/00
Filed: 1972-06-20
Abstract: 1397934 Edge-runner mills FOSTER WHEELER CORP 20 June 1972 [28 April 1972] 28882/72 Heading B2A The rollers 26 of an edge runner mill 10 are mounted on shafts 42 Fig 2 fixed to a centre preferably annular yoke 44 formed with a central opening. The shafts 42 extend radially outwardly from the yoke, which is itself supported by the rollers. The outer end of each shaft 42 includes a keyed revesible bearing block 66 cooperating with a bearing surface 80 in each roller 26. The yoke section 44 is supported by members 46 Fig 3 which are integrally formed with a ring plate 48, and the shafts 42 are received in bores 50 and welded at 52 and further supported by gusset plates 54. Pressure is applied to the rollers by springs 36 and a thrust ring 34 Fig 1 formed with an annular lip 38 which cooperates with a groove 32 in each roller. The grinding table 20 is rotatably driven by a motor (not shown).
Patent GB-908898-A (GB)
Title: Improvements in or relating to apparatus for severing adjustable lengths of sheetmetal from a strip or the like
IPC: B23D33/10
Filed: 1959-08-24
Abstract: 908,898. Shearing. UNGERER, F. Aug. 24, 1959 [Nov. 4, 1958], No. 28905/59. Class 83 (4). Apparatus for severing strip 1 into lengths comprising a straightening device 4, 5, a flying shear 6, 7, electrical contacts 20, 21, Fig. 3, operable by the leading end of the strip to control the shear, and a guide between the shear and a member 11 supporting the contacts for preventing arching of the strip, the member 11 being supported by and movable with the shear. In Fig. 2, the member 11 is supported adjustably by a rod 10 in guide-rolls 12, 12<SP>1</SP>, 13, 13<SP>1</SP> and is connected for movement laterally but not vertically with the upper shear blade 7. Restraint of the strip-feed by member 11 until this and the shear are accelerated to the strip feed-speed causes humping of the strip over a table 14. The contact lever 17 engaged by the strip-end may be biased by a spring or weight towards the open position; instead of using the lever 17 the strip may act as a conductor. Retraction of the member 11 may be by a spring &c. returned electromagnet 28, Fig. 6, on a support 24 clamped at 25 to channel members 26, 27 connected to the shear and having rolls 30 guided in tacks 32. The members 26, 27 are interconnected by yokes 29, and non- metallic guides 33 on the tracks 32 hold the strip against a table (not shown) during feed by the rolls of the straightener 4, 5. After shearing the strip the shear operates the electromagnet to withdraw member 11 and returns to its starting position where it opens withdrawal contacts in series with others on the shear and in circuit with the electromagnet 28. Thus the member 11 returns to operative position and the withdrawal contacts close automatically when the shear again moves forward. Contacts 20, 21 may also operate a clamp (not shown) to grip the work close to the shear. In a modification, Fig. 7, the straightener 4, 5 is mounted on rolls 35 and moved away from the shear under the control of a follower roller or photo-electric device (Fig. 9, not shown), which senses the height of the strip-hump over table 14<SP>11</SP>. The device may operate a regulating resistance for an electric motor, withdrawing the straightener at a speed depending upon the height of the hump which is wholly or parly converted into a sag at 36. Alternatively, a spring-returned pneumatic or hydraulic piston (Fig. 8, not shown) may move the straightener. The blanks may be stacked or removed by a conveyer.
Patent GB-285168-A (GB)
Title: Improvements in or relating to rubber tyres and their attachment to wheels
IPC: B60C7/12
Filed: 1926-11-17
Abstract: 285,168. Killen, E. B. Nov. 17, 1926. Non - metallic elastic bodies and cores.-A onepiece cushion tyre A is formed with a continuous cavity D and a divided base vulcanized to metal foundation bands B, B<1> which, together with the inner wall portions, abut when the tyre is fitted to a wheel and seal the cavity D. The tread, which is of substantial width compared to the base, may be formed with triangular cavities F.
Patent GB-409276-A (GB)
Title: Treatment of cellulose-ester or -ether textile materials
IPC: D06M13/02
Filed: 1932-10-19
Abstract: Cellulose-ester or-ether textile materials are delustred by uniformly impregnating with a solvent or solute for the cellulose-ester or -ether, which solvent or solute is insoluble or difficulty soluble in water, and thereafter subjecting the impregnated material to the action of a hot or boiling aqueous medium or moist steam.  The time of contact, which may be of the order of 30 seconds, enables the textile materials to be delustred in a continuous manner, for example, on a jig.  Examples of suitable solvents or solutes for the cellulose-ester or -ether are organic bases, phenolic bodies, terpene alcohols, esters, ketones, hydrocarbons, and ethers, a number of which are specified.  The impregnation may be effected by applying the solvent or solute as an aqueous suspension or dispersion, prepared for example, by means of soap, turkey red oil, or the dispensing agents described in Specifications 219,349, 224,925, 242,393, 242,711, 269,960, 273,819, 273,820, 322,737, and 323,788, [all in Class 15 (ii)]. The compounds may also be dispersed by mechanical means in the presence of a protective colloid, with or without a solvent for the compound, e.g. benzene, and xylene.  The impregnation may be effected by padding, after which the materials are preferably allowed to stand for some time.  The treatment with hot aqueous media may be effected by steeping, by the use of a machine of the jig type, or by passing the materials through a hot aqueous bath. The aqueous bath may contain substances adapted to modify the delustring action of the bath, as described in Specification 260,312, [Class 2 (ii)].  Removal of the solvent or solute may be effected subsequently, for example, by subjecting the fabric to a steaming treatment.  In an example, a cellulose acetate woven fabric is padded with a dispersion obtained by heating diphenyl with xylene and turkey red oil, rolled up and allowed to stand overnight, and then passed through a tank containing water at about 95 DEG  C.  According to the Provisional Specification, any delustring accelerator may be employed.  Specifications 165,164 and 266,777, [both in Class 2 (ii)], also are referred to.
Patent GB-804642-A (GB)
Title: Improvements in catalysts for the catalytic production of polymers
IPC: C08F2/00
Filed: 1955-01-20
Abstract: A catalyst for the polymerization of olefins comprises chromium oxide deposited on or otherwise associated with alumina, silica, alumina-silica, thoria, or zirconia, at least part of the chromium being in the hexavalent state, and the catalyst also containing strontium oxide which retards the decomposition of hexavalent chromium compounds.  The chromium content of the catalyst is preferably 0.1-10 per cent and the amount of strontium oxide may be equivalent to 0.2-4 gram atoms of strontium per gram atom of chromium.  Suitable carriers are synthetic alumina gel, bauxite, activated alumina, silica gel, acid-treated clays, and silica-alumina cracking catalyst.  The catalyst may be prepared by treating the carrier with aqueous solutions or suspensions of chromium and strontium compounds, either successively or simultaneously, and then heating and calcining; dispersion media other than water, e.g. ethanol, pentanol, or acetone, may be used.  Another method of preparation is coprecipitation of the oxides with the support. Chromium and strontium compounds which may be used are the oxides, nitrates, and acetates, chromic acid, chromic chloride or sulphate, and strontium carbonate, hydroxide, chromate, or dichromate.  The catalyst may be activated by treatment with dry air at 750-1000 DEG F.  After use the catalyst may be washed with a paraffinic solvent to remove deposited polymer, treated with an inert gas, e.g. nitrogen, at 700-1100 DEG  F. for 1 hour, and then with an oxidizing gas to burn off carbonaceous deposits.  Specification 790,195 also is referred to.ALSO:Olefins are polymerized in the presence of a catalyst comprising chromium oxide (at least part of the chromium being in the hexavalent state) deposited on or otherwise associated with alumina, silica, alumina-silica, thoria, or zirconia, and containing strontium oxide as a stabilizer, in order to avoid or retard decomposition of the hexavalent chromium compounds (see Group III).  The olefins polymerized and the conditions of polymerization are as disclosed in Specification 804,641. Specification 790,195 also is referred to.
Patent GB-657076-A (GB)
Title: Improvements in or relating to automatic switches as used in telephone systems
Inventor: TAYLOR REGINALD
IPC: H04Q3/00
Filed: 1948-11-11
Abstract: 657,076. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Nov. 11, 1948, No. 29305. [Class 40 (iv)] A group selector which is set in response to the odd impulses only of a received train is provided with a pair of wipers effective alternatively in association with all the other wipers according to whether the digit is odd or even and serving to control wiper selection at a succeeding switch. In a final selector which may be the succeeding switch and in which wiper switching is effected according to the route of access to the switch, separate test leads are provided for each access route, the remaining leads being common for both routes. Group selector. A penultimate group selector, Figs. 3, 4, has 5 levels of 10 outlets in each of two groups FS1, FS2 which are searched simultaneously. As shown, a pair of private wipers EP1, OP1, EP2, OP2 is provided in each wiper set for controlling wiper switching in the final selector. Alternatively, one of the line wipers may be duplicated and a single private wiper only, be provided. In response to the hundreds digit, the first release of A shunts B to apply full potential to the vertical magnet VM which lifts the wipers to the first level. When A reoperates, a circuit is completed through the centre winding of OH which actuates to connect the wipers OP1, OP2. The release of A during the second impulse leaves OH dependent on its left-hand winding which the succeeding make connects in series with B. Relay OH thereupon releases. Thus, during the digit OH is operated and the wipers are lifted by the odd impulses and OH is released by the even impulses. When the dialling relay C falls back, the selector hunts over the two groups of outlets FS1, FS2 under the control of relays HA, HB until an idle outlet (group FS1 has preference) is seized. Final selector, Fig. 5. If OH of the group selector is operated the incoming private leads EP, OP are bridged and a wiper switching.relay WS remains back. If OH is back the final selector is seized over lead EP and WS operates. Specifications 451,362 and 588,790 are referred to.
Patent GB-1143956-A (GB)
Title: Process for the vulcanization of polymers
IPC: C08G75/06
Filed: 1965-07-10
Abstract: 1,143,956. Vulcanizing unsaturated polyethers or polythioethers. DUNLOP CO. Ltd. (R. T. Woodhams). 17 June, 1966 [10 July, 1965], No. 29337/65. Heading C3R. An unsaturated polymer containing ether or thioether linkages is vulcanized by heating the polymer in the presence of a salt of an N- substituted dithiocarbamic acid of general formula RHN.CSS-. +NH 3 R<SP>1</SP> wherein R and R<SP>1</SP> are the same or different and are alkyl, aralkyl or aryl groups or of general formula (-R<SP>2</SP>HN CSS-.+NH 3 R<SP>3</SP>-) n  wherein  n  is an integer of more than 1 and R<SP>2</SP> and R<SP>3</SP> are the same or different and are selected from alkylene, aralkylene and arylene groups. In addition sulphur may be present during the vulcanization process. Suitable vulcanizing agents include methyl ammonium methyldithiocarbamate, isopropyl ammonium isopropyl dithiocarbamate, methyl ammonium isopropyl dithiocarbamate and n-butyl ammonium n-butyl dithiocarbamate and are usually used in amounts of from 1 to 10 parts by weight per 100 parts of the polymer. Examples of unsaturated polymers are copolymers of one or more saturated episulphides or epoxides, such as the alkylene sulphides or oxides ethylene sulphide, propylene sulphide, propylene oxide or butylene sulphide, with unsaturated episulphides or epoxides, e.g. alkyl thioglycidyl ether, vinyl thiirane, 1,5- hexadiene monoepisulphide, dimethyl butadiene monoepisulphide, piperylene monoepisulphide, allyl glycidyl ether, 1,4-pentadiene monoepisulphide cyclopentadiene monoepisulphide, limo - nene monoepisulphide, 1,3-cyclohexadiene monoepisulphide, para-methylene-cyclo-hexyl thiirane, thioglycidyl methacrylate and thioglycidyl acrylate. The amount of unsaturated monomer present in the copolymer may be from 0À1 to 20 mole per cent of the total polymer. Preferred polymers include unsaturated copolymers of propylene oxide or propylene sulphide. The polymer composition may contain inert fillers such as carbon black, silica and whiting. Other compounding ingredients may include zinc oxide, zinc sulphide, stearic acid and diethylene glycol.
Patent GB-535319-A (GB)
Title: An improvement in steering controls for use with retractable undercarriage landing wheels
IPC: B64C25/50
Filed: 1939-11-04
Abstract: 535,319. Aircraft landing carriages. O'NIONS, A. E. Nov. 4, 1939, No. 29375. [Class 4] A device for steering the landing wheels of retractable undercarriages which becomes operative without any additional manipulation by the pilot as the undercarriage is lowered comprises a link H movable by the usual rudder bar, the link being connected by a ball joint to a yoke A pivoted on trunnions, on the undercarriage leg, normally in the longitudinal plane of the aircraft. The leg is pivoted in a member E which can be turned about a transverse axis to raise the wheel out of use. During this movement the yoke A is turned into a vertical plane after which movements of the link H merely turn the yoke about it trunnions. The link H is guided by a bearing C so that the ball joint is maintained at a constant level to ensure the centring of the wheel as it is raised. The link H is connected as shown to the rudder-bar I.
Patent GB-1380515-A (GB)
Title: Combined herbicide
IPC: A01P13/00
Filed: 1973-06-20
Abstract: 1380515 Mixed herbicides SUMITOMO CHEMICAL CO Ltd 20 June 1973 [23 June 1972] 29413/73 Heading ASE A herbicidal composition comprises as active ingredients 0-methyl or 0-ethyl-0-(3-methyl-6- nitrophenyl)-N-secondary-butyl - phosphorothioamidate, and a sym-triazine herbicide represented by the formula: wherein R 1  represents a chlorine atom, a methoxy group or a methylthio group, and R 2  and R 3  each represent an ethyl group or an isopropyl group. The triazine herbicide may be simetryne.
Patent GB-1473844-A (GB)
Title: Synchromesh mechanisms
IPC: F16D23/06
Filed: 1974-05-02
Abstract: 1473844 Synchronizing clutches VAUXHALL MOTORS Ltd 2 May 1974 [21 June 1973] 29504/73 Heading F2C In a synchronizing clutch for a vehicle gearbox the synchronizing friction force between frusto-conical surfaces of a synchronizing ring and a gear to be clutched to a shaft is supplemented by an additional friction clutch energized by the friction force between ring and gear. In the embodiment illustrated in Figs. 1 and 3 axial baulk pins 24 are provided, mounted in a cage 18, initial movement of a coupling sleeve 14 moving the pins 24 and cage 18 through a ball 20 (acted on by a ridge 22) and a spring, the cage pressing a synchronizing ring 16 against a frusto-conical surface of a gear 10. The ring 16 has a clutch element 26 splined to it, a further clutch element 34 being slidably mounted on pins 24. The drag torque between the ring 16 and the gear 10 causes relative rotation of clutch elements 26, 34 to thereby cause cam surfaces 30, 32 of the elements (Fig. 3) to separate them and cause them to engage the gear 10 through surfaces 36, 38 to provide the additional synchronizing action. A spring 39 biases the clutch elements together so that they are inoperative when synchronization is complete and movement of the pins 24 circumferentially permits axial movement of sleeve 14, and clutch engagement. Rollers could also be used in the embodiment shown to reduce friction between the cam surfaces 30, 32, and the spring 39 may be replaced by a series of compression springs.
Patent GB-370378-A (GB)
Title: Hanger for wearing apparel of all kinds
IPC: A41D27/22
Filed: 1930-10-03
Abstract: 370,378. Garment loops or hangers. WEINBERG, G. A., 86, Am der Heerstrasse, Charlottenburg, Berlin. Oct. 3, 1930, No. 29602. Convention date, Aug. 19. Void [Published under Sect. 91 of the Acts]. [Class 141.] A garment loop or hanger comprises a strap or chain a provided at each end with stop members b. A plate c of celluloid or like material secured under the lining of the garment has holes e at its ends, through which the members b are pushed.
Patent GB-1021872-A (GB)
Title: High temperature heating of metals
IPC: C21D1/74
Filed: 1962-08-13
Abstract: 1,021,872. Continuous metal-heating furnaces. STEIN & ROUBAIX. Aug. 13, 1962 [Nov. 13, 1961], No. 29780/62. Heading F4B. In a rotary hearth furnace, divided into heating zones by radial partitions 1-6, metal workpieces are preheated by the secondary combustion of the reducing atmosphere withdrawn from a burnerless heating zone C through passages 11a near the commencement of zone C, Fig. 3, and through passages 13 from the preheating zone B, Fig. 4. The workpieces are heated in zone C only by the hot reducing atmosphere produced by burners 10 in the following heating and equalizing zones D, E, F. The combustion products from the zone B are burnt with air supplied at 18, cooled by additional air supplied at 21 and fed through heat exchangers 44, 43 and 40 to the flue. The fuel gas, primary air and secondary and tertiary combustion air are heated in exchangers 40, 43 and 44 respectively. The total combustion air, supplied from a single blower is regulated in accordance with the fuel supply, and the fuel and air supplies to the equalizing zone F and heating zones D, E are controlled in accordance with the temperatures in these zones. The secondary air supply to preheating zone B is also controlled in accordance with the temperature in this zone, the remaining air being fed to the flues for tertiary combustion. A separate blower supplies the cooling air to the flues.
Patent GB-305286-A (GB)
Title: Improvements relating to apparatus for delivering liquid in different quantities measured by volume
IPC: B67D7/16
Filed: 1927-11-07
Abstract: 305,286. Risbridger, W. A., Risbridger, J. A., and Wayne Tank & Pump Co., Ltd. Nov. 7, 1927. Fixed-chamber apparatus with counting apparatus.-A container 1 supplied with liquid from a bulk source by means of a pump 5 and pipe 6 is provided with an overflow pipe 7 determining the maximum quantity deliverable at one operation, and discharge pipes 8 having their upper ends at different levels corresponding to lesser amounts it may be required to deliver. The pipes 8 deliver into a common discharge chamber and single delivery pipe. Each discharge pipe has an adjustable end 9 whereby the amounts to be delivered may be exactly determined, and is fitted with a lift valve the stems of which pass down the pipes and end in rollers for engaging cams 19 on a transverse shaft 18. The cams 19 are in alignment at their rear edges but extend for differing circumferential amounts. They may, however, be arranged to act in succession. A further cam 20 situated at a point of the circumference remote from the cams 19 controls the inlet valve of the pipe 6. A small depression in each cam accentuates the correct position of the shaft for delivering a particular quantity of liquid. Indicating discs 28 are mounted in the casing at each end of the shaft 18. A notched plate 31 is mounted on the shaft 18 near the handle 27 and the notch 32 may be engaged by one arm 37 of a lever secured on a pin 33. Outside the casing an arm 34 mounted on the pin 33 carries a lock 35 the bolt of which may be run into a recess in the casing. In this position the arm 37 prevents the handle 27 from being turned and the other arm of the lever opens a drain valve in the base of the container. At the other end of the shaft 18 is a counting mechanism actuated through a disc 39 having five pins 40 for engaging a lever 41 pivoted on the casing. A slidably supported rod 42 pivoted at one end to the lever 41 is at the other end associated with the actual counting mechanism.