baber/WOPTO huggingface dataset:
Patent GB-1514617-A (GB)
Title: Power servomotor
IPC: B60T13/565
Filed: 1976-06-30
Abstract: 1514617 Vacuum servomotors BENDIX CORP 30 June 1976 [11 Aug 1975] 27278/76 Heading F2F A power servomotor comprises concentric pistons 96 and 112 which define first and second pressurizing chambers 104 and 120 respectively which communicate with each other until the total input force from servomotor and pedal 20 reaches a certain level (usually at "vacuum runout") when the fluid under pressure in chamber 104 passes to a relief chamber 106 whereupon communication between chambers 104 and 120 is ceased and the area effective to increase pressure in chamber 120 decreases from that of piston 96 to that of piston 112. In the vacuum servomotor embodiment shown in the Figure actuation of pedal 20 causes face 68 to engage seat 67 to isolate power chamber 32 from the vacuum in chamber 30 and also cause seat 69 to lift from face 68 to admit atmospheric air into chamber 32 via passage 86. The resulting pressure differential across wall 28 moves piston 96 to the left as viewed in the Figure, increasing the pressure in chamber 104 which subsequently becomes sufficient to lift valve member 134 from its seal to provide communication between first and second pressurizing chambers 104 and 120. At "vacuum runout", i.e. when chamber 32 is at atmospheric pressure, any further input force on pedal 20 is effective to move pistons 96 and 112 directly, the engagement of end 186 of a stem 182 on a star shaped bumper 180 being effective to move a valve body 152 to the left relative to piston 96 to open communication between chamber 104 and relief chamber 106 via passages 125, 127 around the periphery of the valve body, between its end 156 and a seat and a passage 129. The consequent reduction of pressure in chamber 104 allows spring 138 to close valve 130 so that chamber 120 is pressurized by movement of piston 112, the area acting to perform such pressurization being reduced from that of piston 96 to that of piston 112 causing an increase in braking force for a corresponding input force on pedal 20.
Patent GB-396242-A (GB)
Title: Improvements in or relating to devices for the surgical treatment of internal organs, in particular the uterus
IPC: A61M3/00
Filed: 1932-10-03
Abstract: 396,242. Surgical injection appliances. CHEMISCHE VERTRIEBS-GES. GERECO, Wiesbaden, Germany. Oct. 3, 1932, No. 27452. Convention date, Dec. 7, 1931. [Class 81 (ii).] An appliance especially suitable for injection of ointments into the uterus comprises a a tube in two parts 1, 3, of different diameters, both internal and external, and a medicament container, which may be a collapsable tube 6, connected as by screw-threading to the part 3. The tube 1 is provided with a rounded outlet end 2 and is preferably of a curved shape corresponding to that of the uterus. The tube 3 may be integral with, or screw-threaded to, the tube 1 and may be of transparent material such as glass.
Patent GB-485977-A (GB)
Title: Improvements in the production of metallic coatings
IPC: C23C18/08
Filed: 1937-10-09
Abstract: A metallic coating is produced on metal articles by applying to the surface a mixture of oxygen-containing metal compounds free from non-volatile reducing agents and capable of reduction at a temperature below 1000 DEG  C. to form an alloy melting below this temperature, the coated article being then heated in a reducing atmosphere to form the molten alloy.  The mixtures may be applied in the form of powder, or with suitable liquids as pastes, or with liquids such as volatile alcohols and esters in the form of "paints." The mixtures of compounds described in Specification 483,156, [Group III], may be employed, in which may be incorporated oxides of gold or of metals of the platinum group, or the metals themselves in finely-divided precipitated form, as for example with mixtures of two or more of the oxides of silver, copper, tin, zinc, or cadmium, to produce coatings of precious metal alloys for inexpensive jewellery. Tubes or other hollow articles may be coated internally by the process.
Patent GB-775736-A (GB)
Title: Improvements in or relating to speed governors
IPC: G05D13/00
Filed: 1955-09-27
Abstract: 775,736. Speed governors. TELEFONAKTIEBOLAGET L. M. ERICSSON. Sept. 27, 1955 [Sept. 27, 1954], No. 27510/55. Class 57. A speed governor for the dial of a telephone comprises a supporting member 1 mounted on a shaft the speed of which is to be governed, two pins 3 disposed on opposite sides of the shaft, an annular fixed brake member 12 the inner surface of which forms a friction brake, two brake weight arms 4 each pivotally mounted at one end on one pin 3 and having a prolongation 10, and spring means 7 arranged so that the ends thereof can be arranged to bear on the prolongations 10 at any required distance from the pins 3, the arrangement being such that on rotation of the shaft the arms tend to move centrifugally against the action of the spring means to co-operate frictionally with the member 12. The spring 7 has a semi-circular portion and two end portions 9 located in slots or apertures 8 in two projections 11 on an adjustment washer 6 which is resilient and placed with its central inner edge between a protruding portion of a gear wheel 2 and the supporting member 1. If the washer is turned, the ends of the spring 7 slide along the prolongations 10 so that the torsional moment on the brake weight arms caused by the spring may be varied. The weight arms 4 have slots in which brake studs 5 are riveted.
Patent GB-339617-A (GB)
Title: Improvements in shock absorbing or damping devices for use in vehicles
IPC: F16F7/02
Filed: 1929-09-10
Abstract: 339,617. Hurst, W. F. F. Martin-. Sept. 10, 1929. Vibration-dampers. Means by which the driver may adjust the pressure exerted upon and the frictional resistance exerted by the several vibration-dampers on a motor vehicle include fluid pressure elements in the form of flexible metallic bellows interconnected by pressure pipes. In the frictional-disc type of shockabsorber shown in Fig. 1, the frictional elements are forced together by fluid pressure in the interior of the metallic bellows h, which is secured at one end to the end plate of the casing d and at the other end to a movable plate i acting through thrust pins j on the friction discs. Pressure fluid is supplied through the pipe connection k. For the purpose of charging the pipe line with liquid an air release valve l is provided- The several shock-absorbers are each supplied with liquid from the apparatus shown in Fig. 3, the pipes being each connected to the interior of the metallic bellows 13. The free end of the bellows is adjusted to increase or decrease the fluid pressure by a hand-operated screw 15, a ballthrust bearing 16 being interposed between the end of the screw and the plate 14. In a modification the space between the outer casing and the bellows forms the pressure chamber. Two concentric bellows with the liquid pressure space between them are shown applied to a shockabsorber of the band type.
Patent GB-284763-A (GB)
Title: Improvements relating to plunger type electrical keys
IPC: H01H15/10
Filed: 1926-11-03
Abstract: 284,763. Siemens Bros. & Co., Ltd., and Baker, F. Nov. 3, 1926. Retractive switches; contacts. - Plunger type electric keys, particularly applicable for telephony, and adapted to return to normal when the operating pressure is removed, are so arranged that the spring contacts are operated during a first part of the travel and their resistance to motion is not effective during the rest of the travel (until arrested by a stop), thus minimizing shock. The push a, carrying a designating character, is mounted on a plunger b carrying a cam c, which is formed of live and dead parts c' - - c<3> for co-operating with contact springs m, n, the part c<2> being either straight as shown, or convex or concave. Secured to a mounting strip f is a bracket h, the short arm of which is slotted to receive a guide pin j screwing into, and guiding, the spindle, whereas the long arm is slotted at h<1> to accommodate the cam c and has a lug e wherein the base of the plunger slides. The springs m carry contact rollers o, but they can alternatively be operated by separate springs carrying rollers. To reduce noise and fatigue of operators, cushions q, r, for example of cork, are placed on the plunger, or a resilient block, shown in dotted lines in Fig 3, may replace the washer q. In operation, the truncated part of the cam forces contacts m into engagement with those n, and when the rollers run on the cylindrical part of the cam, the resistance of these contacts ceases. Further movement of the plunger increases the resistance of the returning spring d to afford a cushioning effect which is aided by the washer g at the end of the stroke. Keyboard switches. - A number of such switches may be assembled on a mounting strip f and bracket h (Fig. 1, not shown).
Patent GB-955711-A (GB)
Title: Tert.-carbinamine polyoxyalkylene surface-active agents
IPC: B01D19/04
Filed: 1960-08-09
Abstract: Surface active compositions comprising a mixture of polyoxyalkylene compounds of formula I and/or formula II below: <FORM:0955711/C3/1> <FORM:0955711/C3/2> where R1, R2 and R3 are alkyl groups whose total carbon atom content ranges from 7 to 23, (C2H4O)a and (C2H4O)c are chains of oxyethylene and (C3H6O)b and (C3H6O)d are chains of oxypropylene units, wherein the number of oxyethylene units a and c and the number of oxypropylene units b and d in the chains are such that there are an average of from 15 to 45 oxyethylene units and an average of from 15 to 67.5 oxypropylene units per mole of polyoxyalkylene compound with the proviso that the ratio of the average number of oxypropylene units to the average number of oxyethylene units lies within the range from 1:1 to 1.5:1 are made by reacting, in the presence of a basic catalyst, one mole of one or more tertiary carbinamines of the formula: <FORM:0955711/C3/3> firstly with from 15 to 45 moles of ethylene oxide and then with 15 to 67.5 moles of propylene oxide, the amounts of propylene oxide and ethylene oxide being such as to attain the above defined ratio in the product. Specified t-carbinamines are t-octyl p-amine, 2-amino-2:4:4-trimethyl pentane and t-tridecyl-p-amine. The examples describe the preparation of surfactants from ethylene oxide, propylene oxide and:-(I) to (V) and (VIII) a commercial mixture of C12 to C15 tertiary carbinamines; (VI) C18 to C24 tertiary carbinamine mixture and (VII) 2-amino-2:4:4-trimethyl pentane. U.S.A. Specification 2,871,226 also is referred to.
Patent GB-1430716-A (GB)
Title: Combined bridge and string anchoring device for stringed musical instruments
IPC: G10D3/04
Filed: 1974-06-21
Abstract: 1430716 Adjustable bridges G D QUAN 21 June 1974 [16 Nov 1973] 27618/74 Heading G5J A bridge for a stringed musical instrument such as a guitar comprises a bar 24 on which are mounted individual bridge sections 60 each of which may have its position along the length of its associated string adjusted from the front part of the bridge nearer the neck 12 (Fig. 1, not shown) in which part the strings are anchored after being passed around the rear part (Fig. 4, not shown). Bar 24 is engaged between head 38 (Fig. 6, not shown) and disc (40) of bolts 32, the bolts raising or lowering either end of the bar relative to the instrument when rotated in the fluted bushings (34) retained in the instrument body. The bar may be positioned in its own general plane by making screws 44a, 44b bear on the shafts of bolts 32. The individual bridge members 60 are adjusted by screws 66 removably retained by being lightly peened into U-recesses 68 in wall 59 (Fig. 5, not shown).
Patent GB-1277754-A (GB)
Title: 2-OXA-5beta-CYANO- AND A-NOR-5beta-CYANO-PREGNANE DERIVATIVES AND THEIR PREPARATION
IPC: C07J61/00
Filed: 1969-06-02
Abstract: 1277754 5-Cyano-2-oxa- and -A-nor-steroids E R SQUIBB & SONS Inc 2 June 1969 [19 June 1968] 27732/69 Heading C2C The invention comprises compounds of Formulae I and II wherein R is H, R<SP>1</SP> is OH, OCOCF 3  or C 1-12  hydrocarbon carboxylic acyloxy, or R and R<SP>1</SP> together represent oxo, and R<SP>11</SP> is OH, OCOCF 3  or C 1-12  hydrocarbon carboxylic acyloxy. Compounds I (R<SP>1</SP> = OCOCF 3  or acyloxy) are prepared from compounds II by reaction with a peracid (e.g. peroxytrifluoroacetic acid) and are convertible by hydrolysis and oxidation into other compounds I. Compound II (R<SP>11</SP> = OH) is prepared by reacting 20#-hydroxy-A-norpregn- 3-en-2-one with KCN and is convertible by esterification into other compounds II. 20#-Hydroxy-A -norpregn-3-en-2-one is prepared by reduction of A-norprogesterone with NaBH 4  or KBH 4 . Compounds I are said to possess antiandro. genie activity and may be made up into pharmaceutical compositions for oral and parenteral administration.
Patent GB-1371251-A (GB)
Title: Lock
IPC: E05B45/00
Filed: 1973-03-26
Abstract: 1371251 Touch-responsive system NOVELTY PATENT Ltd 26 March 1973 [14 June 1972] 27848/72 Heading G1N [Also in Divisions E2 and G4] A touch-responsive system in a lock comprises a touch plate 7, which is a metallic key-hole plate 2 surrounding the key-hole 3, and an amplifier connected to a switching device adapted to change state when the plate is touched. The amplifier includes transistors 8, 9, 10 in cascade and the switching device is a driver transistor 11 connected to a bell or alarm circuit 6 and to a light source 12 which illuminates the lock through a transparent plastics plate 4 when the plate 7 is touched. It is stated that instead of responding to changes in electrical capacitance the touch plate could be arranged to respond to a difference in temperature between ambient temperature and that of a member temporarily in contact with it.
Patent GB-1536147-A (GB)
Title: Data processing systems
IPC: G01R31/3185
Filed: 1975-07-02
Abstract: In the data processing device, the internal registers are formed by shift registers which are connected via a test register to form a loop. If someone wishes to view the contents of a required internal register, the contents of the loop are rotated until the desired register contents appear in the test register. The contents of the loop can be rotated via a secondary path (8) without passing through the test register (6). The contents of the loop can thus be rotated while the contents of the test register can still be viewed, thus saving time. <IMAGE>
Patent GB-519132-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G9/15
Filed: 1938-09-27
Abstract: 519,132. Condensers. BOSCH GES., R., (formerly BOSCH AKT.-GES., R.). Sept. 27, 1938, No. 28080. Convention date, Oct. 2, 1937. Drawings to Specification. [Class 37] Condensers with layers of semi-conducting materials on one or both sides of the dielectric proper, have these layers from 20 to 100 times thicker than the dielectric, which may be of a thickness ranging from one hundredth of a micron to ten microns. The semi-conducting materials may be carbonised cellulose or paper, graphite suspended in a lacquer, metal oxides or organic mixtures or compounds such as tricresyl phosphate. Specifications 426,135, [Group XXXV], and 454,847 are referred to.
Patent GB-1188886-A (GB)
Title: Process for the Preparation of a Furan Derivative
IPC: A23L27/20
Filed: 1968-06-13
Abstract: 1,188,886. 2,5 - Dimethyl - 4,5- dihydrofuran - 3 - ol - 4 - one; hexane - 3,4 - diol - 2,5 - dione. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH, and F. H. FIRMENICH, [trading as PIRMENICH & CIE]. 13 June, 1968 [16 June, 1967], No. 28100/68. Heading C2C. 2,5 - Dimethyl - 4,5 - dihydrofuran - 3 - ol - 4 - one is prepared by cyclizing hexane-3,4-diol- 2,5-dione in water at a pH of 6-9 at reflux temperature and in the presence of a cyclization catalyst preferably salts of organic carboxylic acids with organic nitrogen bases, e.g. piperidine acetate, or " normal " or " acid " alkali metal salts of mineral acids, e.g. sodium carbonate, sodium bicarbonate or a mixture of sodium orthophosphate, monohydrogen phosphate and dihydrogenphosphate. Hexane - 3,4 - diol - 2,5- dione, claimed per se may be prepared by reduction of pyruvaldehyde, preferably with zinc powder and aqueous acetic acid at 40- 50 C., by oxidation of 2,5-dimethyl-2,5-dimethoxy-3,4-dihydrofuran preferably in a water/ tetrahydrofuran solvent using potassium chlorate as oxidizing agent and osmium tetroxide as oxidation catalyst and at a temperature of 40-50 C., or by oxidation of acetol by means of air in an acid buffering aqueous medium preferably at 90 C. and a pH of 5-6.
Patent GB-642299-A (GB)
Title: Improvements relating to collapsible trestles
IPC: E04G1/34
Filed: 1948-10-29
Abstract: 642,299. Trestles. INGALL, PARSONS, CLIVE & CO., Ltd., and PURVES, W. A. Oct. 29, 1948, No. 28103. [Class 52 (iii)] The head of a trestle comprises two upwardly foldable arms 8 having a pin and slot connection 9, 8c with a housing 7a on the pedestal 7 and insertable therein when folded. Downward movement on insertion is communicated to the leg stays 14 by a rod 10b to collapse the legs 12. The arms may carry strips 8e or studs of rubber.
Patent GB-170595-A (GB)
Title: An improved building block or slab
IPC: E04C2/36
Filed: 1921-01-10
Abstract: 170,595. H÷fler, R., and Renyi, S. April 9, 1914, [Convention date]. Paper blocks and slabs; slabs.-Building blocks and slabs comprise two covering sheets 1, 2 of millboard, paper, or the like preferably corrugated as shown united by closed rings r of millbcard &c. placed on edge and preferably corrugated. Channels y of millboard &c. may be disposed around the edge to position the slabs on the wall &c. framing. The closed rings of millboard may be of angular form stiffened with cross strips. In a modification the slab is of hexa. gonal shape and in addition to the closed rings the corners of the covering sheets may be supported by half-rings. The slabs may be impregnated in known manner with tar, asphalt solution, paraffin &c.
Patent GB-771208-A (GB)
Title: Improvements relating to rotatable shelf structures for storage compartments
IPC: A47B49/00
Filed: 1955-07-28
Abstract: 771,208. Rotatable shelves. GENERAL ELECTRIC CO. July 28, 1955 [July 29, 1954], No. 21855/55. Class 52 (1). Rotary shelves 9, 10 are carried by a shaft 11 made in separate disconnectible sections 12, 13, 14 independently rotatable, the shaft being removably mounted in a refrigerator or other storage equipment. As shown the sections 12, 13 have spigots 18, 20 entering sockets on the adjacent lower sections each provided with a thrust ball bearing 21, 22. A dependent spigot on the underside of a removable shelf 16 locates the upper end of the shaft and bayonet slots in the shelf flange engage headed studs 42 on the compartment wall. The shelves rest on threaded collars 25, 26 adjustable on a screw thread cut on the shaft which has longitudinal flats 23 engaged by a spring plunger in each collar to prevent unintentional rotation of the collar. The rear edge of each shelf is notched to engage a spring-pressed locating rod 33 at the back of the compartment.
Patent GB-763309-A (GB)
Title: Improvements in or relating to the manufacture and construction of coin cups for coin-freed amusement apparatus
IPC: G07F9/04
Filed: 1954-09-30
Abstract: 763,309. Making coin cups for coin-freed amusement apparatus. GLOVER, T. W. Aug. 26, 1955 [Sept. 30, 1954], No. 28223/54. Class 83 (2). Coin-cup means for coin-freed amusement apparatus is made by stamping a flat apertured plate 1 from sheet metal, forming a cup portion 4 and securing it in the aperture in the plate. Fixing holes 3 are provided in the plate during its stamping. The cup portion 4, which is formed by spinning, is of hemi-spherical form and has a turned-over rim 5; it is secured symmetrically within the plate by soldering or brazing so as to project equally from each side of the plate. The latter is preferably of brass. The cup is finished by buffing and plating.
Patent GB-505894-A (GB)
Title: Improvements in and relating to means for controlling the supply of gas and water to geysers and the like
IPC: F24H9/20
Filed: 1937-10-16
Abstract: 505,894. Gas geysers etc.; valves; gas - igniting means. SAFETY GAS DEVICES, Ltd., RABINOWICZ, M., and KESTENBAUM, I. Oct. 16, 1937, Nos. 28235/37 and 4395/38. [Class 136] [Also in Group XI] In a gas geyser &c., the supply of water and gas respectively is controlled by taps a, i, Fig. 1, the spindles c, h of which are provided with interengaging coupling members f, p having sufficient play to permit opening of the water tap, by a handle on the coupling member f, without opening the gas tap, but preventing independent opening of said gas tap ; the geyser is also provided with gas igniting means adapted to be operated by an actuating member or disc m associated with the gas tap. The igniting means, Fig. 5, comprises flint 16, located in a spring-pressed housing 16<1>, and a knurled friction wheel 13, or a roughened segment or rod, which contacts with the flint and is actuated, by an arm 14 in driving connection by a rod 15 with the disc m, when the gas tap is opened. The gas tap is preferably provided with a spring n tending to close it when open, one end of the spring being fixed and the other end attached to the disc m which is loose on the spindle k and is formed with dogs or teeth m<1> for engagement with teeth l on the said tap, sufficient play being provided between the teeth ml, l to permit the tap to be closed manually. The disc m is also provided with a notch o which, when the gas tap is open, is engaged by a tooth 3 on a lever 1 controlled by a thermostat 7 associated with the pilot burner of the geyser in such a manner that should the latter become extinguished the thermostat will disengage the said tooth and notch and permit the spring to close the gas tap. In order to prevent the spring n closing the water tap, the coupling member f is provided with a co-operating spring catch f<1> which arrests the rotary movement of the water tap as soon as the gas tap is closed but permits the tap to be closed by hand. Overheating of the thermostat is prevented by an arm 12 associated with the lever 1 which deflects the mixing tube 9 of the pilot burner away from the thermostat when the tooth 3 and notch o are in engagement. In a modification, the water and gas taps are coupled by a displaceable link which is hingedly suspended from the operating lever of the water tap and normally projects at its lower end between two lugs of different size on the operating lever of the gas tap; in this arrangement the link in normal position may be actuated to open and close both taps, or, alternatively, it may be displaced to actuate the water tap only. Specification 505,893 is referred to.