baber/WOPTO huggingface dataset:
Patent GB-892340-A (GB)
Title: Improvements in or relating to silicon carbide bodies
IPC: C04B35/573
Filed: 1958-08-06
Abstract: Silicon carbide bodies of density exceeding 3,00 g. per cc and having a cubic and/or hexagonal crystalline structure are prepared by forming a mixture comprising at least 25% granular silicon carbide, e.g. of 60 mesh or finer, and a resinous carbonizable material in sufficient quantity to render the mix cohesive and adhesive, shaping the mixture, e.g. by pressing or extruding it, and firing it in contact with at least sufficient silicon to react with substantially all of the available carbon in said shape at a temperature to bring about this reaction.  The carbonizable material is preferably a thermosetting resin, e.g. a phenol-aldehyde resin such as resorcinolformaldehyde, and the mixture preferably also includes a carbonaceous material, e.g. charcoal, pitch coke, graphite, up to 3% of boron oxide and plasticizers such as cellulose ethers, e.g. methyl cellulose, and diglycol stearate.ALSO:In a process for making articles of dense silicon carbide bodies a mixture comprising at least 25% granular silicon carbide in finely divided form e.g. 60 mesh and finer, and a resinous carbonizable material in sufficient quantity to render the mix cohesive and adhesive is shaped, e.g. by pressing or extrusion, and fired in contact with at least sufficient silicon to react with substantially all of the available carbon in said shape at a temperature to bring about this reaction.  The carbonizable material is preferably a thermosetting synthetic resin, e.g. a phenol-aldehyde resin such as resorcinol-formaldehyde, and the composition preferably also includes a carbonaceous material, e.g. charcoal, pitch coke, graphite, up to 3% of boron oxide and plasticizers, e.g. cellulose ethers such as methyl cellulose, or diglycol stearate.  The resultant body has a free silicon content preferably below 8% by weight, a density exceeding 3,00 g. per cc and a cubic and/or hexagonal crystalline structure.  In uniting two parts of a refractory high temperature electrical heating element the composition is applied to the two parts as a joining layer which is then fired in the presence of silicon.
Patent GB-715053-A (GB)
Title: Improvements in or relating to mine air conditioning arrangements
Inventor: GREY JOHN CONSTANTINE
IPC: E21F3/00
Filed: 1951-10-29
Abstract: 715,053. Ventilating mines. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Oct. 2, 1952 [Oct. 29, 1951], No. 25281/51. Class 137. [Also in Group XIII] Air coolers 12 situated in mine workings comprise water or brine coils over which the air of the mine is blown by a fan driven by a motor 16, the coils being connected across flexible lagged pipes 15 leading to a heat exchanger 4 cooled by a closed-cycle air-expansion refrigerator 1, 2. The heat of compression of the air from the rotary compressor 1 is removed by a heat exchanger 5 in which circulates water supplied from the surface or cooled in a cooling tower situated near the bottom of the upcast shaft.
Patent GB-1153711-A (GB)
Title: A method for the Production of 5'-Ribonucleotides
IPC: C07H1/02
Filed: 1966-06-07
Abstract: 1,153,711. 5<SP>1</SP>-Ribonucleotides. TAKEDA CHEMICAL INDUSTRIES Ltd. 7 June, 1966 [11 June, 1965], No. 25385/66. Heading C2C. 51-Ribonucleotides are prepared by reacting the corresponding ribonucleoside with a phosphorylating agent in the presence of at least one phenol in an amount of not less than 10 moles relative to the ribonucleoside; and hydrolysing the compound. The phenols may be mono- or polyhydricphenols and may be used singly or in combination. The phosphorylating agents include PCl 3  PCl 5 , POCl 3  and pyrophosphoryl tetrachloride. The PCl 3 , PCl 5  and POCl 3  may be partially hydrolysed or alcoholysed with an alcohol containing 1-4 carbon atoms, e.g. t-butanol before use and the agents may be used singly or in combination. A suitable solvent, e.g. benzene, xylene or dioxane, may be used. Suitable ratios of reactants are 1-30 moles of the phosphorylating agent and 10- 100 moles of phenol or phenols per mole of nucleoside. Specified products are inosine-, cytidine-, guanosine-, uridine- and adenosine 5<SP>1</SP>-monophosphates. Nicotinamide ribonucleoside is included as a specified starting material.
Patent GB-290096-A (GB)
Title: Expanding tool for piston rings
IPC: B25B27/12
Filed: 1927-09-28
Abstract: 290,096. Madsen, T. Sept. 28, 1927. Piston packing.-A tool for expanding split piston rings comprises a flexible band, chain, wire, &c. 2 in two portions provided with hooks 3 for engaging the ends of the piston ring 1 and attached to lugs 5 threaded on a right-and-left hand screw 6 rotatable by means of a crank 9. In place of the screw the ends of the band may be drawn together by a toothed bar with driving gear or operating pawl or connected eccentrically to a roller or lever. The band may be kept away from the piston ring by lugs 10 flanged to engage the ring and eyed or grooved to engage the band and the lugs may be of different heights to distribute more evenly along the ring the stress due to the tension of the band.
Patent GB-864599-A (GB)
Title: Improvements in or relating to mineral mining machines
Inventor: ANDERSON JAMES
IPC: E21C29/00
Filed: 1957-08-14
Abstract: 864,599. Fluid-pressure servomotor control systems. ANDERSON, BOYES & CO. Ltd. Dec. 12, 1957 [Aug. 14, 1957], No. 25635/57. Class 135. In auxiliary hydraulic mechanism in a mineral mining machine as described in Specification 864,598, for operating the haulage gear and/or the slewing of the cutter jib of the machine, the electromagnetic means located between the electric motor (not shown) and the pilot valve device 6, comprises a small induction motor 50, the oscillating rotor 56 of which is connected through a cord 53 to a lever 52 loaded by a spring 59. The loading of the spring may be adjusted with reference to a scale 60 by a nut 61. Specifications 739,065 and 859,949 also are referred to.
Patent GB-1445058-A (GB)
Title: Process for reducing the hygroscopicity and for the free-flow properties of polycarboxylates
IPC: C08J3/00
Filed: 1974-06-10
Abstract: 1445058 Coated polymer particles DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 10 June 1974 [18 June 1973] 25642/74 Heading B2E A process for reducing the hygroscopicity of a polymer which contains a plurality of carboxyl or carboxylate groups and optionally aldehyde or hydroxy groups comprises introducing the polymer in powder form and in portions into a melt of a coating agent accommodated in a rotating mixer heated to a temperature of up to 140C the coating agent being such as to remain free flowing after equilibrium adjustment at 30C in an atmosphere of 40% relative humidity, showing an acid or neutral reaction in aqueous solution or suspension, melting at a temperature between 40C and 120C and in such quantity as to form 3% to 40% by weight of the mixture. Suitable coating agents include Japan wax tallow fatty acid, C 12-18  fatty acid mixture, maleic acid anhydride, paraffin, stearic acid, behenic acid, parmitic acid, myristic acid, lauric acid, other aliphatic carboxylic acids having 12 or more C atoms, aliphatic dicarboxylic acids, acid anhydrides, monohydric alcohols, esters, fatty acid polyglycol ethers, or mixtures thereof. Suitable polymers include Y + w/2 mole percent units of formula I  U-W mole percent units of formula II Z units of formula III, w/2 units of formula IV and V units of formula V  U is 12 to 47, V is 1 to 25, W is 0 to 4, Y is 100-(U + V + Z') and Z is 0 to 20.
Patent GB-655245-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A17/66
Filed: 1946-08-27
Abstract: 655,245. Automatic firearms. FABRIQUE NATIONALE D'ARMES DE GUERRE SOC. ANON. A HERSTAL-LEZ-LIEGE. Aug. 27, 1946. No. 25657. Convention date, Dec. 13, 1943. [Class 92 (ii)] In a gas operated firearm a slide operated by the plunger of the gas piston first unlocks the breech block, then operates a lever which withdraws the cartridge slowly and finally engages directly with the breech block and carries it back more rapidly. As shown, the rearward movement of the slide 2 against the action of a spring (not shown) is used to unlock the breech block 3 by the engagement of a ramp 2a carried at its rear with lugs 3a on the breech block thus carrying the lower part 3c of this block out of engagement with a fixed stop 4a against the action of a spring 32 situated between the breech block and the slide, and then to hold the block in its upper position as shown in Fig. 10. A cam surface 2b on the side of the slide now engages with a similar surface 5b on the longer arm of a lever pivoted on the breech chamber at 5a, forcing it to rotate about its pivot, its shorter end 5c engaging with an abutment 3d at the front of the breech block to move the block back slowly thereby extracting the cartridge. Further movement of the slide causes a face 2c of a lug running in a slot in the top of the breech block to engage with a face 3e of the breech block and carry it rearwardly with the slide. During the forward movement of the slide a curved face 2e on a part carried at the rear of the slide (Fig. 13) engages the steeply sloped surface 3f of the lug 3a and carries the breech block to its forward position when the spring 32 forces it down into engagement with the stop 4a. The curved surface of the slide then rides on the incline 3g of the breech block abutment 3a forcing the block into its fully locked position and holding it there. A safety device consists of a pin 32a carried by the spring which is forced through a hole in the breech block retaining the firing pin when the block is in any other than its locked position. The rearward projection of the slide when the breech block is unlocked prevents the hammer 33 striking the firing pin 31.
Patent GB-1197906-A (GB)
Title: Method of manufacturing Impregnated Stratified Materials
IPC: D01F11/12
Filed: 1967-06-02
Abstract: 1,197,906. Stratified carbon or graphite materials. SOC. LE CARBONE LORRAINE. 2 June, 1967 [20 July, 1966], No. 25671/67. Heading B5N. [Also in Divisions B3 and CI] ] An impregnated carbon or graphite stratified material is made by assembling a stack of sheets of a carbonizable material of animal, vegetable or synthetic origin, impregnated with a carbonizable thermosetting resin, polymerizing the stack by heat and at a pressure of 10 to 30 kg/cm<SP>2</SP>., carbonizing or graphitizing the stack and further impregnating it. The resin is polymerized at 180‹ to 220‹ C. followed by carbonization of the material at 1200‹ C. and, if desired, graphitization at 2700‹ to 3000‹ C. The further impregnant may be a metal, particularly Ag, Cu or Pb-Cu alloy. Other further impregnants include thermosetting and polyester resins and metal halide which can be included with or without the metals.
Patent GB-1202106-A (GB)
Title: Improvements in or relating to punch mechanisms
Inventor: HERNU MICHAEL JOHN RAYMOND WIG
IPC: G06K1/02
Filed: 1968-05-29
Abstract: 1,202,106. Punching. INTERNATIONAL COMPUTERS Ltd. 23 May, 1969 [29 May, 1968], No. 25672/68. Heading B4B. A punch mechanism for selectively punching a moving recording medium 10 comprises a punch element 7, mounted in a carriage 3 and movable perpendicular to the medium 10, a linkage assembly connected to the carriage 3 and the punch element 7, and means 1, 5 for reciprocating the carriage 3 parallel to the medium so that on selecting the punch element 7 a point on an arm 23 of the linkage is fixed, and motion of the carriage 3 causes the punch element to function. The medium 10, e.g. a tape, is driven by a capstan 31, the carriage 3 being reciprocated by a rotary cam 1 acting against a spring 5 at a uniform forward speed equal to the tape speed. At the start of a punching cycle the latch arm 23 of the linkage is engaged by a latch member 26 under the influence of a solenoid 27, and as the carriage 3 advances the punch 7 is forced downwards by a lever 13, pivoted at 14 to the carriage 3 and at 16 to a strut 15 depending through a swinging link 18 from the arm 23. At the end of the stroke the arm 23 engages a stop 36C, causing the punch 7 to be withdrawn, the solenoid 27 is de-energized and, the strut 15 and link 18 having pivoted out of alignment sufficiently to contact a latch member projection 29, the latch 26 is disengaged, so that the arm 23 can rise unhindered as the strut 15 pivots during the return stroke of the carriage 3. Several punch mechanisms may be operated selectively simultaneously, each solenoid 27 remaining de-energized during any non-punching cycle, and the tape 10 may be fed by frictional contact with the carriage.
Patent GB-747710-A (GB)
Title: Improvements relating to file folders, card separators, index cards and the like
IPC: B42F21/00
Filed: 1954-09-03
Abstract: 747,710. Filing papers. GUICHARD, R. A. E. Sept. 3, 1954 [Sept. 3, 1953; March .27, 1954], No. 25677/54. Classes 16 and 146(1) A file folder, card separator or index card adapted to be filed vertically with a visible side edge, is laterally reversible and its two side edges are wholly or in part inclined in the same direction to the bottom edge to enable a label attached to a side edge to be read from above or below according to the edge to which it is attached. As shown, each card 1 or folder 15 has edges 2, 3 or 18 inclined to the base so that a label 8, as shown in Fig. 4, is more easily read by an eye 14, the top card 1 being wrongly disposed. The corners 4, 5 may be removed along vertical lines. The side edges are formed with slots 6, 7 or series of slots 20 for engagement by label holders 8 or 21. The folders 15 are suspended by rods 16 riding on cross-rails 17 and they may be connected at their front edges, concertina fashion by the label holders 21, when each folder is provided with only one suspension rod 16. Tabs. The label holder 8 is of U-section with flanges 9 at right-angles thereto with upturned ends 10. An arm of the U is passed through the slot 6, or 7 and a transparent sheath 11 with inturned edges 12 is slid over the flanges 9 and rests on their ends 10. A strip label 13 may be inserted below the sheath. The label holder 21 is similar, but with one arm of the U cut away to leave tongues 22 with flanges 23 which are passed through the slots 20.
Patent GB-314721-A (GB)
Title: Improvements in or relating to gas or vapour burners
IPC: F23D14/48
Filed: 1928-09-07
Abstract: 314,721. Turner, I. Sept. 7, 1928. Atmospheric gas and vapour burners.-A gas or vapour regulator comprises an inner nozzle a, fixed in the outlet of the body f so that the gas or vapour can pass through and around it and an outer nozzle o screwed in the outlet for adjusting the annular space between the adjacent conical, conoidal or like surfaces of the nozzles. The nozzle a may be supported by a notched flange c held by a spring q against a shoulder n and may have a substantially uniform axial bore. The nozzle o may be adjusted by means of a square p or hexagon at the outer end. The body f is provided with oppositely-disposed threaded holes g for connection with a supply pipe, the hole not in use being closed by a plug e. The outer end of the body is fitted with a screw i carrying a member k adapted to control the inlet l of the bore m so as to provide a coarse adjustment of the regulator. The body f is threaded to engage a threaded eye t in the mixing-tube rand provided with a lock-nut s.
Patent GB-1281497-A (GB)
Title: Shift register
IPC: G11C19/28
Filed: 1971-04-19
Abstract: 1281497 Transistor switching and bi-stable circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [3 April 1970] 25775/71 Heading H3T [Also in Divisions G4 and H1] A shift register comprises a number of stages each including first and second transistors, e.g. T3, T4, Fig. 1. The emitters of the two transistors are connected together and fed with shift clock pulses. A reference potential is supplied to the base of the first transistor T3 and its collector is connected to the base of the second transistor T4. The collector of the second transistor T4 is connected to the collector of the first transistor T5 of the next stage. The register is formed as an integrated circuit and is stated to use less transistors and to have a better speed: power ratio than registers of the prior art. As described the base of each first transistor is connected to the junction of R1, R2 to receive the reference potential. Input data is applied at V1 and clock pulses at Cp. Transistors T16, T13, T14 cause complementary clock pulses to be applied to leads A, B supplying alternate pairs of transistors T1-T12. In one clock period T1, T2 (and T5, T6 &c.) are enabled so that T1 or T2 is made conducting, dependent on the bit state of the data at V1. In the next clock period T3, T4 (and T7, T8 &c) are enabled so that T3 or T4 becomes conducting, dependent upon whether T2 was or was not conducting during the previous clock period. Data is therefore transferred from stage to stage at each clock pulse. In order to prevent bottoming the voltage anoxide collector resistor is smaller across any one junction.
Patent GB-383349-A (GB)
Title: Improvements in adjustable-throw crank mechanism
IPC: F16C3/28
Filed: 1931-09-15
Abstract: 383,349. Adjustable cranks. UDAL, J. P., 91, Oakfield Road, Selly Park, and TAYLOR & CHALLEN, Ltd., Derwent Works, Constitution Hill, both in Birming- ham. Sept. 15, 1931, Nos. 25826 and 27949. [Class 80 (iii).] A shaft d is formed with eccentric discs c connected by a concentric pin b. A sleeve in halves a<1>, a<2> envelops the discs and pin and is formed with a central portion B eccentric to the pin and discs and adapted to act as a crank pin. On rotating the sleeve relatively to the discs, crank arms of varying eccentricity may be obtained. Diametral holes e pass through the discs and sleeve ends for the reception of bolts g which secure the sleeve in one of several possible positions. In a modified construction, the crank pin is formed integral with two eccentric flanges which are recessed to receive the discs on the shaft ends, the whole being bound together by the diametral bolts ; or the flanges may be on the shaft ends and the discs on the pin.
Patent GB-208772-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M31/18
Filed: 1922-09-25
Abstract: 208,772. Pickard, W. Sept. 25, 1922. Spray carburettors.-Cocks g, d are interconnected with the accelerator, the cock g controlling the slow-running nozzle f<1>, and the cock d being provided with two passages, one of which controls the flow of fuel to the nozzle c, and the other controls the flow of steam through an - exhaust-heated coil e to the nozzle c. The steam is generated as described in Specification 202,866. The sleeve valve i controlling the air inlets, and the valves controlling the inlet and outlet of the exhaust gases to the chamber l, may also be interconnected with the accelerator.
Patent GB-601841-A (GB)
Title: Improvements relating to dies for cutting-out and marking presses as used in the manufacture of boots and shoes
IPC: C14B5/00
Filed: 1945-10-05
Abstract: 601,841. Cutting-out dies for boots &c. BOSTOCK, G. S., and SHARPLES, T. G. Oct. 5, 1945, No. 25946. [Class 31(i)] [Also in Group VII] A machine for cutting-out and marking leather to form blanks suitable for boots and shoes of different sizes is constructed with a base 5 which is adapted to be mounted in a stamping press in known manner, and upon the base 5 is mounted by means of posts 6a and bolts 6b a platform 6 formed with a series of tapped holes 6c for receiving screws 9 bv means of which a cutting-out knife 8 adapted for shoes of different sizes is secured to the platform 6. A pad 8b for ejecting the finished blank is mounted near the knife 8. A marking-device 14a is secured to a spring-supported plate 14 mounted on a platform 12 secured to a plate 11 in the same manner as the platform 6 is secured to the base-plate, and the plate 11 is adjustably mounted in undercut guides 10 on the plate 5 so as to be adjustable in position for dealing with shoes of different sizes. This adjustment is effected by means of a link 15 and lever 16 operated by a lever 17 fitted with locking projections 17c. Fig. 4, engageable in notches 19c in a graduated arcuate guide 19. The plate 5 is fitted with spring-mounted plates 23 fitted with markers 23a for marking the counter portions, and the plates 23 are mounted and adjusted similarly to the plates 14. Marking-devices for ornamentation, as indicated by chain lines 25a, are mounted on platforms 25 secured to the base plate 5 similarly to the method of securing the platforms 14, 23, but these platforms 25 are not adjustable in position.
Patent GB-483910-A (GB)
Title: Improvements relating to permanent hair waving apparatus
IPC: A45D4/12
Filed: 1936-09-24
Abstract: 483,910. Two-part couplings. BONGERS, A. H. Sept. 24, 1936, No. 25980. [Classes 36 and 38 (i)] A supply-fitting a has a number of flexible conductors o leading to hair-waving appliances connected to it by plug fittings n that carry means for varying the effective length of the conductors by gripping each conductor at any suitable point in its length. The fitting a carries sets of socket contacts j into any of which the plug-members n can be inserted. Each plug member n is formed with a lateral groove n<1> to receive the lead o from any one of the plug members n so that the length of the chord along which the slack of the conductor lies can be varied. The groove n<1> is closed by a plate p carried by parallel links p<1> and the grip on the conductor therein may be increased by a spring-pressed plunger projecting into the groove. Other forms of gripping device may be used, such as a groove on the surface of the plug member that abuts on the fitting a, spring clips that may grip a sleeve adjustable along the conductor, or a groove with an enlargement into which such a sleeve can be slid to retain the conductor therein. An accessory fitting t<1>, t<2> by which all the conductors can be brought together near the centre of the fitting may also be provided. The sets of sockets j, Fig. 6, are secured by heads j<2> between the parts of a double outer wall e of an annular cavity f forming the periphery of the fitting. Within the cavity are ring-shaped bus-bars k and an earthing bar k<1> connected to the frame of the fitting. Each of the plug members n is provided with a switch q, and with dependent hooks for use by the operator. According to the Provisional Specification the gripping devices may be arranged upon the supply fitting instead of on the plug fitting.