baber/WOPTO huggingface dataset:
Patent GB-985392-A (GB)
Title: Improvements in or relating to propellent compositions
Inventor: RUMBEL KEITH ELLIS
IPC: C06B45/10
Filed: 1961-06-08
Abstract: A propellent composition comprises a vinyl chloride polymer or copolymer, an organic plasticizer for the polymer, ammonium perchlorate in amount sufficient to maintain active combustion of said polymer and plasticizer and a minor proportion of a metal chromate or metal chromite in an amount which increases the burning rate of the composition.  The chromates and chromites may be those of copper, iron, zinc, cadmium or magnesium and may be made by dissolving the appropriate nitrate in water, adding ammonium dichromate and then adding ammonium hydroxide and filtering off the chromate which may be converted to the chromite by strong heating. Mixed salts of magnesium and copper; and of cadmium, copper and zinc may be obtained similarly by starting with the appropriate mixture of nitrates.  Preferred plasticizers are dibutyl sebacate and dioctyl sebacate; dioctyl phthalate, dibutyl phthalate, di-(methoxyethyl) phthalate, dioctyl adipate, di-(3,5,5-trimethylphenyl)-adipate and glycol esters of higher fatty acids may also be used.  A preferred composition consists of 60-80% of the perchlorate, 12 1/2 % of plasticizer and 12 1/2 % of polyvinyl chloride or vinyl chloride-vinyl acetate copolymer and up to 2% of the catalyst. Specification 853,320 is referred to.
Patent GB-718905-A (GB)
Title: Improvements in and relating to methods of preparing organopolysiloxane elastomers
IPC: C08K5/55
Filed: 1951-09-03
Abstract: A polysiloxone rubber is made by polymerizing a heat-curable liquid polysiloxane containing 1.75 to 2.25 hydrocarbon radicals per silicon atom, using benzoyl peroxide or ferric chloride as polymerization catalysts, until a gum is formed, mixing the gum with a filler and 0.1 to 5 per cent. by weight of the gum of a boron hydride as curing catalyst, moulding the mixture to a desired shape at 100 DEG  to 300 DEG C. under pressure and curing it by further heating at 150 DEG  to 300 DEG C.  Siloxane starting materials that may be used are disclosed in Specifications 592,018 and 594,481.  Boron hydrides specified are decarborane (B10 H14), pentaborane (B5 H9), hexaborane (B6 H10), the ammonia complex of diborane, B2H5. 2NH3, complexes of decaborane with hexamethylenetetramine or with p.p1-diaminodiphenylmethane, and organic derivatives of boranes, e.g. diphenyl decaborane.  Fillers such as lithopone, ferric oxide, titania, talc and zinc oxide may be added in amount of 0.1 to 3 parts by weight per part of siloxane.  Examples are given.  The products are useful as insulation materials for electrical conductors, gasket material and shock absorbers. Specification 618,453 also is referred to.ALSO:Amine salts are prepared in the form of addition compounds from decaborane (B10H14) and (1) hexamethylenetetramine, and (2) p,p1-diamino-diphenylmethane.
Patent GB-597198-A (GB)
Title: Improvements in electric signal transmission systems
IPC: H04B3/00
Filed: 1945-08-13
Abstract: 597,198. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Aug. 13, 1945, No. 20754. [Class 40 (v)] In a broad band amplifier, distortion due to the broadening of an input pulse, together with the ringing effect on the trailing edge, is reduced by the use of a large number of amplifying stages having a band-width substantially greater than that of the signal to be transmitted and a small number of stages having a band width equal to that of the signal. One or more of the narrow band width stages may be connected to the output terminals of the amplifier. The bands passed by the stages may extend from zero to a cut-off frequency or the signal may be heterodyned before application to the amplifier and demodulated at the receiving end.
Patent GB-226576-A (GB)
Title: Improvements in coated fabrics
IPC: B41N10/04
Filed: 1923-08-15
Abstract: 226,576. Decker, A. F. Aug. 15, 1923. Drawings to Specification. Paints; varnishes.-A composition for coating a flesible base to make a printer's blanket comprises a cellulose ester and a solvent. Vegetable oil such as castor oil, animal oil such as lard oil or lanolin, and pigments such as zinc oxide or metallic powders may be added.
Patent GB-943659-A (GB)
Title: Improvements relating to waterstops for concrete
Inventor: FIELD-SMITH JOHN FIELD
IPC: E04B1/62
Filed: 1961-06-08
Abstract: 943,659. Sealing joints in concrete structures. EXPANDITE Ltd. May 17, 1962 [June 8, 1961], No. 20808/61. Heading E1V. A waterstop 5, for concrete structures such as the wall shown, having corrugations of dovetailed cross-section is nailed to shuttering 4 during pouring of concrete on the near side of the stop, the shuttering is removed and the concrete then poured on the far side of the stop keys into the dovetailed sections. The stop is of flexible resilient material, preferably p.v.c.
Patent GB-1184010-A (GB)
Title: Automatic Machine for Inserting Groups of Bottles into Packing Cases or the like
IPC: B65B21/18
Filed: 1968-05-02
Abstract: 1,184,010. Stacking bottles in cases. A. GUERZONI and R. GUERZONI [trading as F. LLI GUERZONI SOC. DI FATTO DI ALESSANDRO E RENATO GUERZONI). 2 May, 1968-[2 May, 1967], No. 20850/68 Heading B8C. Apparatus for inserting, bottles in a packing case comprises two parallel conveyers 3, 4, driven, in opposite directions, an endless conveyer 7 carrying a plurality of gripping heads 12 for lifting bottles from the conveyer 3 and placing them in packing cases on the conveyer 4, a first member 13 reciprocating alongside the conveyer 3 and having pivoted arms 117, 118 movable across the conveyer for positioning the bottles prior to lifting, and a second member 14 reciprocating alongside the conveyer 4 and having pivoted arms 19, 20 movable across the conveyer for positioning the packing cases before the bottles are inserted. The arms 117, 118 and 19, 20 may move in synchronization or one after the other to position the bottles and packing cases, respectively. The arms 19, 20 carry upwardly extending plates 24 co-operating with a plate 21 on the member 14 and a fixed plate 22 to form a guide for the bottles. The reciprocating members and arms may. be driven mechanically from the endless conveyer 7 or hydraulically or pneumatically.
Patent GB-971726-A (GB)
Title: Porous product and method of manufacturing
IPC: C08J9/24
Filed: 1962-05-30
Abstract: A method of manufacturing a porous product having interconnected cells comprises the steps of compressing finely divided plastic particles to a predetermined shape and heating at a temperature sufficiently high to sinter adjoining particles together but sufficiently low to create a reticulated structure within the material, at least 94.8% by weight of the particles ranging from 44 to 297 microns in diameter.  A thermally unstable blowing agent may also be included in the mixture.  The particles may consist of polyethylene, polyvinyl chloride, epoxy resin, polyvinyl formal or polyvinyl acetate.  A typical blend comprises by weight polyvinyl chloride 45%, polyethylene 25% and phenol-formaldehyde 30%.  As a specific application a printing roller is made by this process, which is of retaining up to 50% of its weight of ink.  In the modification dinitrosopentamethylene tetramine is used as the blowing agent.  A typical analysis of particle sizes (% by weight) in the materials to be used is: greater than 297 microns, 0.8%; greater than 149 microns, 20.8%; greater than 74 microns, 62.4%; greater than 44 microns 10.8%; under 44 microns, 4.4%.  Specification 754,707 is referred to.
Patent GB-256402-A (GB)
Title: Improvements in or relating to baby carriages
IPC: B62B9/12
Filed: 1925-08-22
Abstract: 256,402. Simpsom, B., and Dow, W. B. Aug. 22, 1925. Parcel-holders; seats and seat backs, arrangement of.-In a perambulator of the " Victoria " type adapted to accommodate one child in a sitting or a recumbent position or two children in a sitting position, the seat 16 normally covering the well 3 may serve as a back-rest as shown in Fig. 3,while the seat 17 is hinged at its forward end and may serve as a backrest for the seat 16, the space behind the back rest 17 serving to hold parcels &c.
Patent GB-942724-A (GB)
Title: A foresight assembly for rifles or the like
IPC: F41G1/033
Filed: 1962-06-01
Abstract: 942,724. Foresights for rifles. R. NUNAN, June 1, 1962, No. 21152/62. Heading F3C. A foresight assembly comprises a sleeve 1 which is soldered or screwed by internal threads 2 on to the muzzle end of a rifle barrel and a foresight 24 carried by a foresight bed 15 fixed on an outer sleeve 8 which is rotatable on the sleeve 1, the sleeve 1 being fitted with an end collar 4 formed with diametrically opposed recesses 22 which can be releasably engaged by a locking catch 17, 21 slidably mounted on the foresight bed 15. The foresight can thus be displaced angularly about the barrel axis from an " in use " position to an " out-of-use " position where it extends vertically downwards from the underside of the barrel and be retained in each position. The outer sleeve 8 is also positively located on the sleeve 1 in either of its two alternative positions by means of a spring- loaded ball catch 10 which is associated with a ball catch 19 for locating the sliding catch 17, 21 in the engaged and released positions. A sight cover 25 is pivotally mounted on the foresight bed 15 and can be retained in the " in use " position or in a forwardly pivoted " out-of-use " position by means of a sliding catch 37 adapted to engage recesses 42 formed on the cover 25.
Patent GB-1302713-A (GB)
IPC: B63B73/40
Filed: 1970-05-01
Abstract: 1302713 Building ships ZJEDNOCZENIE PRZEMYSLU OKRETOWEGO 1 May 1970 [2 May 1969] 21154/70 Heading B7S During the welding together of separate floating sections of a ship, or other floating structure, the joint area is sealed from the sea by a submersible pontoon having towers 1 and a transverse member 2 defining a working space 3 which is surrounded by inflatable sealing strips 13. In use the pontoon is partially submerged, moved along the bottom of the hull to the joint area, then urged into sealing contact with the hull by increasing its buoyancy.
Patent GB-300305-A (GB)
Title: Improvements in and relating to variable electric inductances
IPC: H01F21/00
Filed: 1927-08-11
Abstract: 300,305. Hesketh, B. Aug. 11, 1927. Inductances.-In variable inductances having pairs of D- shaped coils, one pair being fixed and the other movable. each coil is situated partly in a peripheral groove and partly in a transverse slot in an insulating support the depth of the grooves being sufficient to prevent the coils from projecting above the surface. The rotor consists of an ebonite &c. disc 1 formed with a peripheral groove 2 and two oblique transverse grooves 3. A stud 4, secured at the upper end by a nut, passes through the disc and is screwed at 7. Soldering tags 8 are secured by screws 9 in a shallow groove. The stator 11 is formed with grooves 12, 13 similar to and correspondingly situated with regard to the grooves 2, 3, and is mounted on a screwed bush 14. Soldering tags are carried by the disc 11. In assembling the variometer, the bush 14 of the stator is secured to the panel 17 by a nut 18, the stud 4 is passed through the bush and supported therein by a cylindrical nut 20, a spring washer 19 being inserted between the end of the bush and the nut 20. A dial 23, having a turning-knob 26, is secured to the stud 4 by a nut 24. Movement between the rotor and stator is limited by a lug 29 on the former engaging a pin 28 on the latter, or stop members may be arranged on the dial and panel respectively.
Patent GB-567198-A (GB)
Title: Improvements in or relating to pyrophoric lighters
IPC: F23Q2/40
Filed: 1943-12-17
Abstract: 567,198. Pyrophoric lighters. BROWN, C. A., and BROWN, A. H. S. Dec. 17, 1943, No. 21241. [Class 75 (iii)] The snuffer 17 pivoted. at 18 to the flint carrier block 6 secured to the top plate of a pyrophoric lighter is formed with two recesses 19, 20 co-operating with a spring-pressed ball 21 on the block 6 to hold the snuffer in the closed or open positions. The snuffer is also formed with a tapered recess 25 to engage the conical end 26 of the wick tube and with a projecting lip 24 to facilitate its operation. The friction wheel 12 and its operating head 13 are mounted on a spindle between the recessed end of the block 6 and the top plate, the wick tube 27 being preferably recessed to provide clearance for the head 13.
Patent GB-136881-A (GB)
Title: Improvements in or relating to Means for Securing Rubber and like Rotary Heel Pads to Boots and Shoes.
Inventor: PLOWRIGHT WILLIAM
IPC: A43B21/433
Filed: 1918-12-19
Abstract: 136,881. Plowright, W. Dec. 19, 1918. Protectors, securing.-Rotary rubber and like heels are secured by a leather or like central piece e nailed to the permanent heel at f and bearing against a metal inset b. An additional metal plate g may be used. Reference has been directed by the Comptroller to Specifications 3560/03, 21671/04, and 429/06.
Patent GB-460663-A (GB)
Title: Improvements in or relating to sound film reproducers, and cinematograph projectors
IPC: G03B31/00
Filed: 1935-07-26
Abstract: 460,663. Kinematograph apparatus. MODREY, H. J. July 26, 1935, No. 21270. [Class 97 (i)] [Also in Group XXXVIII] Relates to sound-film or kinematograph apparatus in which the film has recorded thereon in succession a number of separate items (i.e. records or series of pictures), and consists in an arrangement whereby any item may be selected and reproduced by dialling a predetermined number of impulses by means of a transmitter of the type used in automatic telephone systems. In the sound-reproducing apparatus shown, a film 1 has musical or other items recorded on successive lengths such as 52, 53, these being separated by sets of perforations or conductive insets 3, 4 corresponding respectively to the " tens " and "units " impulses which can be dialled by a transmitter 21. To select any particular item, the digits of the number allotted to it are dialled at 21, causing by well-known means the contact arm 20 of a selector switch 10 to move to a position corresponding to the number of impulses transmitted. The operation of the switch 10 completes the circuit of a motor 2 which drives the film at a very high speed. As the film is running, the perforations or insets 3, 4 coact with the contact members 6, 7 to transmit periodic sets of impulses to a second selector switch 9. The drawing does not show the actual arrangement of the parts 3, 4, 6, 7 which would be adopted in practice. The rows 3, 4 in each set, or the contacts 6, 7, should be spaced longitudinally. When, by the operation of the impulses transmitted from the film, the contact arm 19 of the switch 9 has been set to a position corresponding to that of the arm 20, the selected item on the film has been reached and is in position for being reproduced. At this time, by means of a control device diagrammatically shown at 22, the switches 9, 10 cause the motor 2 to be slowed down to the proper playing speed, the " soundhead" is switched in, and reproduction is effected. After the selected item has been reproduced, the motor 2 stops. A reversing switch may be provided to enable a lower numbered item to be next reproduced; or alternatively the film may be automatically wound back to the beginning. The invention may be similarly applied to kinematograph apparatus, the projector light source being in this case switched on when projection of the pictures is to be effected.
Patent GB-749165-A (GB)
Title: Improvements in or relating to housings for enclosing and mounting rotating parts
IPC: A47L5/24
Filed: 1954-07-21
Abstract: 749,165. Joint-making packing. SCHEID, A. M., and SCHEID, E. M., [trading as VORWERK & CO.]. July 21, 1954 [July 29, 1953], No. 21274/54 Class 122(3) [Also in Group XXVIII] In a housing for enclosing rotating parts, such as the motor 5 and impeller 6 of a vacuum cleaner, and formed by two parts 7, 8 connected, on a plane transverse to the axis of rotation of the rotating parts. by a spigoted joint packed by a rubber sealing ring 12, the ring is accommodated in the space provided by two annular grooves 13, 14 one in each of the opposed joint faces, offset from one another at least in respect to their inner edges. The outer diameters of the grooves are the same but the inner diameter of groove 14 is greater than that of groove 13 so that when the parts 7 and 8 are pressed together the sealing ring 12, which may be tubular or of cellular rubber, is deformed to the shape shown at the left-hand side of the Figure. The parts 7 and 8 are radially aligned by the spigot 9 and axially located by facial contact of the joint faces.
Patent GB-637932-A (GB)
Title: Improvements in or relating to lubricants
IPC: C10M169/06
Filed: 1947-08-05
Abstract: A lubricating grease contains a grease-forming lubricant base and a lithium soap of one or more hydroxy- or poly-hydroxy-stearic acids, the content of the lithium soap being not more than 50 per cent of the total weight of the grease.  The lithium soap may be of 12-hydroxy stearic acid, hydrogenated ricinoleic acid, hydrogenated castor oil or hydrogenated castor oil fatty acids; 10-hydroxy and 9.10-dihydroxy-stearic acids are also mentioned. The lubricating base may consist of mineral oil, animal oil or vegetable oil, or mixtures thereof.  Mixtures of mineral oil and hydrogenated fish oils or rosin may also be used.  The lubricating grease may also contain other lithium soaps, sodium, calcium and aluminium soaps, metalloid soaps such as those of antimony and bismuth, soaps formed from organic bases such as ethanolamines, butylamine, ethylene diamine and morpholine, and an oxidation inhibitor for example m-phenylene diamine.  The grease may be neutral or slightly basic.  The lithium soap may be formed in situ in the lubricant base and the grease may be agitated while it is cooling from a fluid to a solid state, for example from 425 DEG  F. to about 275 DEG  F.  The greases are preferably dehydrated by heating to 400-425 DEG  F., and may be milled by the method described in Specification 632,527.  Various examples of grease compositions are given.  Specification 575,544 also is referred to.
Patent GB-516207-A (GB)
Title: Improvements in or relating to grillers of cooking stoves
IPC: A47J37/06
Filed: 1938-07-18
Abstract: 516,207. Grilling-stoves; hot-plates; perforatedtube gas-burners. EMSCOTE FOUNDRY CO., Ltd., and HARVEY, F. July 18, 1938, No. 21295. [Classes 75 (i) and 126] A gas griller which radiates heat principally downward comprises a pair of hollow heatradiating elements 23 forming together an inverted V the limbs of which are each inclined to the horizontal at an angle of less than 45 degrees, each element having along its lower edge an aperture in register with a burner 19, 20, the hot 'gases from which pass into the interior of the element 23 and escape at its upper part. The elements 23 are of fireclay, heat-resisting wire, cast or sheet metal, or other material, They have openings in their bottom walls and are disposed within an inverted V-shaped metal envelope 24, 25 which has an outlet 34 for hot gases along its ridge, and has an opening in its bottom surface for the radiation of heat. This envelope is composed, of upper and lower parts 24, 25 clamped together at their apices. Ribs 33 on the top surface of the upper part 24 divert liquid droppings from the hot-plate 10 above, away from the burner nozzles. This hot-plate 10 has ribs 11, an opening 12 for hot. gases from the griller, and a protective portion 13. The burner tube extends around all four sides of the elements 23 the end of the tube being closed and joining to the beginning. Two opposite parts 19, 20 of the tube have longitudinal ribs containing burner holes 22. According to the Provisional Specification, each radiating element may contain more than one conduit for hot gases.
Patent GB-1132305-A (GB)
Title: Improvements in or relating to processes for the monitoring of data channels
IPC: H04L25/04
Filed: 1967-05-08
Abstract: 1,132,305. Transmission quality measurement. SIEMENS A. G. May 8, 1967 [May 9, 1966], No. 21310/67. Heading G1U. The transmission quality of an idle data channel is determined by applying test signals to the channel input and comparing at the receiving end of the channel the peak interference amplitude occurring during the intervals between the periods when test pulses should be received with the peak received pulse amplitude occurring during the periods. This is achieved by having two gates at the receiving end, one of which is opened only during the periods when the signal pulses should be received and the other of which is opened only during the intervals between periods. The outputs from the gates are measured and compared.
Patent GB-1002655-A (GB)
Title: Improvements in or relating to stacking boxes or trays
IPC: B65D5/00
Filed: 1963-05-29
Abstract: 1,002,655. Stacking trays. N.V. MAATSCHAPPIJ TOT EXPLOITEREN VAN OCTROOIEN EN LICENTIES " MATEPA." May 29, 1963 [Sept. 20, 1962], No. 21392/63. Heading B8P.  The four walls of an open box formed by folding up the sides 2 of a cardboard blank are joined at the corners by a corner joint consisting of a bent strip 4 fitted into slots 3 cut in the box walls and a block 6 inserted into the space defined by a corner and its bent strip. For extra rigidity a clasp may be fitted on the outside of the corner and engaging with the bent strip. The strip 4 is placed in the slots 3 with the folded ends 5 bearing against the exterior of the walls. A solid block 6 forms the corner post and is inserted into the space formed by the two sides 2 and the strip 4. For increased rigidity the folded ends 5 may be engaged with a corner clasp 7 held against the outside walls of the corner and forming an integral part of the strip 4. The post 6 may be longer than the walls to provide a clearance when stacked. If the walls 2 are deep rigidity is improved by a second similarly shaped strip 4 and external clasp 7 fitted into two additional slots located in the lower half of the walls.
Patent GB-1045234-A (GB)
Title: Embossing device
IPC: B41J3/39
Filed: 1965-05-21
Abstract: 1,045,234. Selective embossing devices. DYMO INDUSTRIES Inc. May 21, 1965 [Jan. 21, 1965], No. 21529/65. Heading B6F An embossing device comprising handle members 12, 13 pivotally articulated to one another by means of an actuating lever 31 is provided with an embossing character selector disc 23, having female embossing dies 29, Fig. 5 (not shown), disposed axially about its periphery, and a deformable button 33 co-operating with a selected die. In operation, an embossing tape 15 is guided along the handle member 12 and the selected character embossed thereon by the button 33 which is resiliently deformed into the shape of the selected female die. To prevent damage to the button 33, which is made of urethine rubber, during cutting-off, the selector disc 23 is provided with a recess 37, Fig. 5 (not shown), disposed adjacent a cut-off die 34 having a pair of knife blades 36. The selected die 29 is indicated by a corresponding alpha-numerical character 27, Fig. 5 (not shown), displayed in a window 28.
Patent GB-487813-A (GB)
Title: Improvements in closure means for drums and like containers
IPC: B65D45/34
Filed: 1937-08-05
Abstract: 487,813. Closures for drums &c. ROWLEY, H. E. C. (Wilson & Bennett Manufacturing Co.) Aug. 5, 1937, No. 21602. [Class 125 (iii)] The clamping - ring 15 for the cover 12 of a drum &c. is compressed on to the rim of the cover by means of a lever 18 pivoted to the ends of the ring or to attachments 17, 23 rigidly connected thereto. By the use of these attachments in conjunction with a lever of arcuate form, the latter is when the drum is closed, brought snugly within the recess of the cover, being there held by a projection 24 on the ring.