baber/WOPTO huggingface dataset:
Patent GB-626258-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/02
Filed: 1947-08-19
Abstract: 626,258. Exciting dynamo-electric machines. ENGLISH ELECTRIC CO., Ltd., and BALL, R. D. Aug. 19, 1947, No. 22952. [Class 35] The control winding of a cross-flux amplifying generator is divided into two sections 2, 3 connected into a bridge circuit 9 with a pair of similar impedances 10, 11, one diagonal of the bridge being connected to the control circuit 14 and the other connecting the secondary brushes 7, 8, and the load 12 in series, so that the load current passing through the field circuit neutralizes the armature reaction due to the load current. The primary brushes 5, 6 may be connected together directly or through a field winding and the brushes may be split to reduced circulating currents. The impedances 10, 11 may be separate or, as shown in Fig. 2, they may be wound non-inductively into the same slots in the field system as the field coils 2, 3. Fluctuations in the primary circulating currents may be damped out by a winding 21 connected to a resistance or by means of a condenser connected in the secondary circuit. Impedances in the bridge circuit, which may itself be shunted, may be inductive to improve the time constant of the machine, and commutation may be improved by reduction or removal of some stator teeth as shown in Fig. 2.
Patent GB-1352943-A (GB)
Title: Tyres
IPC: B60C9/26
Filed: 1971-04-19
Abstract: 1352943 Tyres CARL FREUDENBERG 19 April 1971 [24 April 1970] 22959/71 Heading B7C [Also in Division D1] The crown region of a tyre is reinforced by reinforcement ply including steel wires embedded in rubber, at least the edges of the ply being enveloped by a self supporting (or coherent) fleece fabric. The ply may comprise parallel steel cords, formed by twisting steel wires, extending transversely of the crown region and each edge of the ply may be enveloped by a rubber edging strip. When a rubber edging strip is provided the fleece fabric may be enveloped by the strip, may be contained in the strip or may envelope the strip. A tyre including a plurality of superposed reinforcement plies may include strips 5 of fleece fabric; each strip enveloping an edge of a ply (Fig. 2) or may include strips 10 of fleece fabric which totally envelope the plies (Fig. 3). The fabric is preferably formed of polyamide or polyester fibres and may be made by means of a Rands webber, or by means of a cord and cross lapper, followed by impregnating the fabric, after needling (if required), with an agent, preferably a latex of vinyl pyridine rubber, applied as a solution or dispersion. To promote adhesion between the fleece fabric and the rubber of the tyre, the vinyl pyridine rubber may include an adhesive for the rubber, preferably an incompletely condensed resorcinol formaldehyde resin.
Patent GB-168885-A (GB)
Title: Improvements in process of treating vegetables in preparation for canning
IPC: A23B7/00
Filed: 1921-08-30
Abstract: 168,885. Thermokept Products Corporation, (Assignees of Willison, W. W.). Aug. 30, 1920, [Convention date]. Washing vegetables.-Vegetables to be canned are placed in a chamber containing luke-warm water; the air is then exhausted and the vacuum suddenly broken. The water is then run off, clean water supplied, and the process repeated. The operation is stated to remove dirt, mucus,- &c. and also to have a bactericidal effect It replaces the ordinary methods of blanching.
Patent GB-749811-A (GB)
Title: Improvements in fumigating devices
IPC: A01M1/20
Filed: 1950-09-19
Abstract: 749,811. Fumigating devices; insecticidal compositions. MURPHY CHEMICAL CO., Ltd., and WALPOLE, J. L. Sept. 13, 1951 [Sept. 19, 1950], No. 23025/50. Class 81(1). A fumigating device comprises, in one modi. fication, a container of paper, fabric or other porous material, impregnated with pot. assium nitrate for ex. ample, to render it partially self-combustible, completely en. closing a mixture of a " partially self-combustible composition and a vaporisable heat-controlling substance, and a removable outer envelope of moisture resistant flexible material. Alternatively the outer envelope may be dispensed with if the " partially self-combustible " material forming the container is also a moisture resistant material. " Partially self-combustible " denotes that the material or composition concerned contains molecular or added oxygen in amount sufficient for it to burn slowly in ambient air but insufficient to burn in the absence of air. Figs. 1 and 2 respectively show the inner container and the outer moisture resistant envelope. The latter may be made of wax-or bitumen-impregnated paper or fabric, cellulose derivatives, synthetic resins, metal foil or a metal foil-paper composite sheet. The inner container may contain a length of ignition fuze 6 embedded therein, and the top may be folded and crimped at 9 and the flap 8 provided with a stapled ignition fuze 10. Alternatively a container and lid may be made of moisture resistant partially selfcombustible material such as a synthetic resin or cellulose derivative. The partially selfcombustible composition comprises a mixture of a combustible material for example, a cellulosic material such as saw dust or wood flour or a cellulose derivative such as the acetate and an oxygen yielding substance such as sodium, potassium or barium nitrates or potassium or barium chlorate. An absorbent material such as china clay or diatomaceous earth may be incorporated. The composition must be such that the heat generated on combustion will be sufficient to vaporize the pesticide but insufficient to decompose it.. Pesticides exemplified are insectidal polyphosphate or thiophosphate esters such as tetraethyl pyrophosphate, hexa- . ethyl tetraphosphate and diethyl p-nitrophenyl thiophosphate, or nicotine, pyrethrum, organo mercury compounds such as mercury phenyl acetate or mercury salicylate, or bis- (bis dimethylamino-phosphorous) anhydride. Two or more different pesticides may be employed together, or two different pesticides may be incorporated in separate porous containers enclosed in a common moisture-resistant envelope.
Patent GB-501137-A (GB)
Title: Improvements in or relating to shaving implements
IPC: B26B19/04
Filed: 1937-08-23
Abstract: 501,137. Dry shavers. GENERAL SHAVER CORPORATION. Aug. 23, 1937, No. 23065. Convention date, March 2. [Class 131] In a dry shaver wherein a reciprocating inner cutter 18 is mounted by pins 16 on a spring-pressed member 14, the outer facesof the fixed outer cutter bars 13 have each intermediate their ends a channel 22 therein forming a thinned-out portion 23 bounded at both ends by substantial portions of the cutter bars. Figs. 4, 5 and 6 show modified forms of the fixed cutter bars 9b, 9c, 9e and the movable cutter bars 12b. 12c, 12e. Spring-pressed balls 19 are confined in recesses in a casing block 5 together with adjustable screw plugs 21. Specification 490,971 is referred to. The Specification as open to inspection under Sect. 91 comprises also the constructions of cutters shown in Figs. 1, 4 and 8 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-962097-A (GB)
Title: Piston rod seal
IPC: F16J15/3284
Filed: 1963-06-11
Abstract: 962,097. Lip seals. GOETZEWERKE FRIEDRICH GOETZE A.G. June 11, 1963 [June 13, 1962], No. 23234/63. Addition to 960,130. Heading F2B. A seal for the piston rod of a pneumatic shock absorber is connected to a supporting plate 2 and includes a sealing lip 1 made of fluorinated rubber, the remaining part 4 of the seal being made of another material, e.g. nitrile rubber. The lip 1 is connected to the plate 2 before the part 4. The lip and the part 4 are vulcanized to each other and to the plate.
Patent GB-946997-A (GB)
Title: Hatch cover
Inventor: HAMILTON WALLACE
IPC: B63B19/19
Filed: 1961-06-27
Abstract: 946,997. Hatch covers. PNEUMO DYNAMICS CORPORATION. June 27, 1961, No. 23281/61. Heading B7S. [Also in Division E2] A hatch cover includes a pair of panels 12 and 14 pivoted together at 16 and to the coaming 10 at 22 through links 19 hovering pivots 21 and 23. The pivot 23 is vertically spaced above and horizontally spaced toward the panel 12 from the pivot 21, e.g. a line through the axes of the pivots is disposed at 45 degrees to the horizontal, so that a force in the direction of the link 19 during the cover opening causes the link to pivot about the pivot 21 as indicated in Fig. 3. The link 19 also automatically adjusts for manufacturing tolerance variations in the lengths of the paired panels, in the vertical stowed position. The panels are moved by power jacking means (not shown) and rollers 17 move along coaming rail. A resilient seal (not shown) extends along the abutting edges of the panels.
Patent GB-1391203-A (GB)
Title: Heating element
IPC: H05B3/14
Filed: 1972-05-18
Abstract: 1391203 Resistance heating elements AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 18 May 1972 [19 May 1971] 23329/72 Heading H5H An oxidation resistant heating element is made of a refractory material which is non- conducting when at a temperature below the operating temperature, the element being generally parallelepiped in shape and having between the two major parallel faces F 1 , F 2  a non-homogeneous area which reduces heat transfer between faces F 1 , F 2  such that when in operation edge F 1  is electrically conducting and edge F 2  is electrically insulating. The non- homogeneity may be formed by through holes 2 and channels 3, or by variation in the porosity between parts A and B of the structure, Fig. 4. The temperature gradient between the ends of edge F 1  may be varied by shaping the channel portions, altering the cross-section of the element or varying the shape of the portion to be heated. Individual heaters may be assembled with spacers to form various furnace shapes, Figs. 7-10 (not shown). The element may be partially or entirely of "stabilized" zirconia (cubic form), obtained by the addition of lime, yttrium oxide, rare earth oxides, magnesia &c. The element may comprise a compound based on Zr 2 T 2 O 5 , T being a metal, preferably a rare earth. The terminal plates, e.g. 6, Fig. 1, may be platinum, bonded under pressure or moulded. Grooves 7b in the edge F 1  reduce the chance of element failure by cracking and the lattice structure absorbs stress &c. The ratio of cavity to solid should be in the range of 0À1-3À0. In the embodiments relating to Fig. 4 arrangements, the portion A of low porosity may be of stabilized zirconia, as above, and the high porosity portion B may alternatively be a ZrO 2 -Al 2 O 3  eutectic, alumina or another suitable refractory material. Part A may be attached to part B by; for example, projection melting using a plasma torch. Part A will have a density of the order of 4À5 and Part B of 2.
Patent GB-155646-A (GB)
Title: Improvements in or relating to means for transmitting motion
IPC: F16H7/08
Filed: 1919-09-23
Abstract: 155,646. Weller, J. Sept. 23, 1919. Tension arrangements.-A chain for driving the cam-shaft of an internal-combustion engine is tensioned by a blade spring 5 pressing on a considerable length of the chain. The spring is adjusted by a screw 7.
Patent GB-1386832-A (GB)
Title: Storage device
Inventor: GUIGAN J
IPC: B65G59/06
Filed: 1972-05-18
Abstract: 1386832 Storage systems J GUIGAN 18 May 1972 [21 May 1971] 23536/72 Heading A4T [Also in Division B8] Articles a stacked between partitions b in a container c slidably mounted in a cabinet 20, may be successively removed by the action of pushers 82. The latter are reciprocated by a linear motor mechanism. The container is also projected by linear motor mechanism to a position corresponding to the pair of partitions between which discharge is to be effected. After ejection, each article is delivered by a shoot 85 to an endless conveyer belt 86. In a modification Fig. 1 (not shown), the articles are ejected directly on to the belt 86 by a pusher (8) on the belt which enters the base of the space between the partitions. In another modification Figs.9 and 10 (not shown), subsidiary slides (93), each partitioned for individual articles) are slidable vertically between each pair of partitions b so that each separate article can be retrieved selectively. Endless belts (71), (72) Figs.6 and 7, (not shown) may be provided for transferring a complete container c to another location. The endless belts may be replaced by a linear motor mechanism Figs. 3-5, (not shown). The partitions b may be replaced by racks 135, 136 Figs.13 and 14 on which articles 144 are suspended. The container c is projected to a selected position corresponding to a desired article and the latter is removed by the action of a conveyer pusher 138. In Figs.11 and 12b, containers 101 (corresponding to containers c in Fig. 8) are selectable from cabinets 100, 104, on either side of a conveyer 108 so as to discharge articles on to the latter. The articles are fed into pockets 115 which are formed as shown in Fig.12b. The pockets are labelled at 126, are sealed at 127, and are severed at 128. The operations are controlled by a computer 109 having a control panel 110.
Patent GB-1390167-A (GB)
Title: Device for dispensing dishware
IPC: A47B81/04
Filed: 1973-05-17
Abstract: 1390167 Counterbalancing PETERS & CO Inc 17 May 1973 [18 May 1972] 23550/73 Heading B8B A dispenser for progressively dispensing units of round dishware 60 from a single stock thereof comprising a platform 12 mounted on a spring 14 and slidable within a housing 10, the housing being arranged such that the edges of a stack of plates can engage a wall of the housing and of such an interior size that a hard access opening is provided along the side of the stock to enable the first unit in a stack to be grasped even when lying below the top of the housing. The platform 12 is connected to the upper end of the spring by means of a screwthreaded adjustment means 16, 18, 20 having left and right hand threads; the member 18 can be rotated by a screwdriver via a slot 19. To prevent the member 18 from being adjusted beyond a certain limit, a flexible tether 24 is provided. In a modification, Figs. 5, 6 and 6a (not shown), the screw-threaded adjustment means are replaced by a scissors-like lever arrangement which can be locked in various adjusted positions. The housing is inclined to the vertical such that the stack of dishware rest with their adjacent edges against a rear wall 66 of the housing. In a modification, a heating unit (76), Fig. 9 (not shown), may be secured to the rear wall in order to warm the dishware by conduction. The interior face of the rear wall may be lined with a plastics material (68), Fig. 10 (not shown), to reduce wear.
Patent GB-494280-A (GB)
Title: Improvements in diagnostic optical instruments
IPC: A61B1/227
Filed: 1937-08-27
Abstract: 494,280. Surgical optical instruments. TENNANT, W. J. (American Optical Co.) Aug. 27, 1937, No. 23573. [Class 81 (ii)] An instrument for use in examination and treatment of body cavities, of the type having a speculum-holder in spaced relation to a source of light and means for deflecting the light into the speculum, is characterized by an observing device having a sight opening in the axis of the speculum and the arrangement of the light-deflecting means is such that the deflected light intercepts the speculum axis substantially at the end of the speculum. As shown the instrument comprises a base part 1 detachably carrying, in a ring 5 on a bracket 4 secured by a screw 7, a speculum 6, and having mounted on it a housing 8 enclosing a lamp 9 connected through a terminal 18 to a dry battery in a handle 3. The top of the housing 8 carries a ring 11 in which a lens 12 is mounted in the axis of the speculum. Beneath the ring 11 is a prism or mirror 13 which has an opaque backing for example of metal and which reflects light into the speculum at a small angle to its axis. The position of the reflector and the backing prevent the scattering of light into the observer's eye. The handle 3 has a rheostat switch 17 and is secured to the base 1 by a bayonet joint 29 covered by a ring 21. A lens 15 is slidable over the lamp in a sleeve mounting 16.
Patent GB-406985-A (GB)
Title: Improvements in the manufacture of films, sheets and the like
IPC: C08L1/12
Filed: 1932-08-23
Abstract: Films, foils, sheets, and like products are made from solutions of cellulose esters or ethers in organic solvents with the aid of coagulating baths comprising aqueous, alcoholic, or aqueous alcoholic solutions of aliphatic polyhydroxy compounds or esters or ethers thereof which compounds have no solvent action at ordinary temperatures on the cellulose derivatives.  The coagulating baths may contain low concentrations of solvents for the cellulose derivatives. The use of baths containing emulsifying agents, and processes in which at least part of the coagulating medium moves so as to exert a drag on the films, are excluded.  The polyhydroxy compound may be glycol, glycerol, sugars, acetates or benzoates of sugars, erythritol, mannitol, sorbitol, mannitan diacetate, water-soluble starch esters, or cellulose degradation products.  The composition, or concentration of the spinning solutions and of the coagulating baths may be adjusted so that the differences between the specific gravities are not so great as to cause interference in the process of film formation.  The film-forming solution may contain solvents of high or low boiling point, plasticisers, and nonsolvent diluents. Stretching may be performed during coagulation.  Coagulation may be effected in stages or the films may be extruded into a liquid containing a high proportion of a polyhydric compound and having a low solvent power for the solvent of the film-forming solution, and liquid which is a solvent for the solvent of the film-forming solution may be added at points along the path of the film so as progressively to increase the coagulating power of the bath.  In an example, cellulose acetate dissolved in acetone, triacetin, and ethylacetate is extruded in the form of a film which is received on a drum rotating in a coagulating bath of glycerol and water.  The film is washed with salt solution and then with water before being dried. Specifications 343,062, 375,424, 400,589, and 405,692 are referred to.
Patent GB-790618-A (GB)
Title: Improved speed responsive device drive
IPC: F16H61/00
Filed: 1956-07-31
Abstract: 790,618. Gear pumps. GENERAL MOTORS CORPORATION. July 31, 1956 [Aug. 24, 1955], No. 23653/56. Class 110 (2). [Also in Group XXIV] A gear pump incorporated in an hydraulically controlled automatic transmission has a centrifugal governor 44 rotatably coupled to its driven gear 32 and discharges through a conduit 82 and a groove 70 in the body 42 of the governor. The governor is provided with two valves 90, 104, the valve 104 being similar to the valve 90 except that it is supplied with oil under pressure from the delivery line 120 of the valve 90 and does not incorporate the spring 100 and weight mechanism 98 thereof. The discharge conduits 120, 134 of the governor communicate with grooves 70 in the body portion 42 whilst the conduits 124, 140 constitute exhaust conduits, the arrangement being such that the delivery pressure in the discharge conduits 120, 134 remains constant. The gear pump is mounted on the transmission casing and is driven by an I.C. engine, see Fig. 1 (not shown). The governor is driven by a U-shaped connector which is received in an arcuate recess 60 in the body portion 42 and has leg portions received in opposed recesses in the gear, see Fig. 2 (not shown). Specification 790,617, [Group XXIV], is referred to.
Patent GB-281047-A (GB)
Title: Improvements in or relating to the hafting of knives, forks, tools and the like
IPC: B26B3/02
Filed: 1926-09-25
Abstract: 281,047. Priestman, E. Sept. 25, 1926. Hollow-end handles; locking catches, toothed holding-devices, and lug attachments for socket and tang fixings.- Knives, forks, tools &c. are secured to their handles by engaging a slotted locking plate in a notch at the junction of tang and blade by a relative sliding movement, then inserting the tang into the handle and securing one or more extensions of the locking plate to the exterior of the handle. The locking plate, Fig. 1, has a central portion 10 corresponding to the shape of the end of the handle 9 and is formed with a slot 14 large enough to admit lateral enlargements 15 of the tang 8, which enlargements 15 enter a slot in the handle to prevent rotation. The rear edge of the slot 14 engages a rear notch 16 at the junction of the knife blade 7 and tang 8, and the locking plate is secured to the handle bv means of teeth 13 on extensions 11. Other extensions 12 on the locking plate engage the other faces of the handle, and the extensions 11 or 12 may be secured to the handle by pins instead of the teeth 13. The portions of the cylindrical hole in the handle not occupied by the flat tang may be filled by a lead &c. plug 18 slotted at 19, which also serves to balance the handle. The end 10 of the locking plate is preferably recessed at 17 so that the blade shoulder adjoining the tang are sunk below the level of the locking plate. In the modification shown in Fig. 6 a slotted thimble 20 takes the place of the locking plate; the thimble is secured to the handle by pins 13, and a rubber &c. washer 21 is enclosed by the thimble to form a liquid tight joint around the tang.
Patent GB-614877-A (GB)
Title: Improvements in venetian blinds
IPC: E06B9/384
Filed: 1946-08-09
Abstract: 614,877. Venetian blinds. JORGENSEN, W. F. E. H., and ORTH, P. E. Aug. 9, 1946, No. 23694. Convention date, April 18, 1942. [Class 20(iii)] A Venetian blind has cords 4 and 5 secured to the bottom slat and hingedly fastened to the rear and front edges of the other slats by means of mountings 6 and 7 which consist of a short metal, wood or plastic tube pinched round the cord and having edges 8 in which the staples 9 engage, the upper end of the rear cord 4 being fastened to the window frame 10, the cord 5 providing means to adjust the angle of the slats. In a modification, both cords are arranged to be raised or lowered.
Patent GB-293231-A (GB)
Title: Improved method of and apparatus for coking hydrocarbon oils
IPC: C10B55/00
Filed: 1927-09-09
Abstract: 293,231. Wade, H., (Standard Oil Co.). Sept. 9, 1927. Materials for making coke; oil gas.-Oils, par. ticularly heavy residues such as those produced by distillation of petroleum oils to bottoms of 10 per cent or less on the original crude, are deposited as a coating on a nickeliferous or chromiferous surface and heated to drive off volatiles and leave a coke layer which is mechanically removed. An apparatus comprises a closed conical chamber . 5 terminating in a discharge well 6, a jacket 7 having an opening 8 for passage of a heating medium such as combustion gases from a burner 9. The chamber may alternatively be heated by mercury vapours, lead or salt baths or be placed in a furnace setting. Heavy residue is supplied through a rotatable pipe 13 and distributor 18 on to the inner wall of the chamber and the coke deposit is removed by a scraper 19 secured to a projection 14 of the pipe 13. The inner wall of the chamber is composed of nickel or alloy containing at least 50 per cent of nickel such as the metal known under the registered trade mark " Monel " metal and alloys of nickel with cobalt, chromium, and iron. Chromium alloys such as iron-chromium alloys containing from about 12 to 30 per cent of chromium may be used. The sur. face is heated to at least 850‹ F. and preferably over 900‹ F. Vapours and gases pass through a conduit 12 to condensing apparatus. Alternatively the oil is supplied from a stationary pipe to a moving surface.