baber/WOPTO huggingface dataset:
Patent GB-1175879-A (GB)
Title: Moulding process for the production of containers
Inventor: FELDMAN PETER BLANDFORD
IPC: B29C51/34
Filed: 1967-08-15
Abstract: 1,175,879. Sheet forming. MONSANTO CHEMICALS Ltd. 18 July, 1968 [15 Aug., 1967], No. 37519/67. Heading B5A. Easily de-nestable containers are vacuum and/or blow formed using a mould, the configuration of which is varied slightly between each forming operation. In this way a succession of slightly differently shaped containers is produced. The moulds may be male or female and are provided with one or more projections the position of which can be changed by reciprocating or rotating the projection carrying part of the mould, or the number of which can be changed. In one embodiment the base of one or more female moulds is provided with projections and is reciprocated relative to the mould sidewalls by a pneumatic cylinder device. In a second embodiment, the base of a female mould is covered by light movable particles themselves covered by a diaphragm. The positions of the particles are altered by alternately connecting the space below the diaphragm to, and releasing it from, a source of vacuum. Compressed air may be used to enhance the movement of the particles, the consequent bulging of the diaphragm assisting the ejection of the formed article.
Patent GB-619725-A (GB)
Title: Improvements relating to earth-carrying scrapers
IPC: E02F3/352
Filed: 1946-12-20
Abstract: 619,725. Earth scrapers. LETOURNEAU, Inc., R. G. Dec. 20,1946, No. 37564. Convention date, May 28, 1945. [Class 68 (i)] The frame assembly 10 of an earth scraper is pivotally connected to a two-wheeled tractor by a yoke 8 and comprises three frames 11, 12, 13, the rear frame 13 being supported by a structure 20 mounted on the axle of wheels 19. This frame 13 slides within a frame 12 itself sliding within the frame 11, movement being due to a screw unit connected at one end to the frame 11 and at the other end to the frame 13, the screw 40 of this unit being advanced or retracted within a sleeve 42 rotated by a reversible electric motor 43. Pivoted about the axle 39 of the wheels 19 is a frame 31 carrying the rear forwardly facing bowl 22 which is raised and lowered by an electrically-operated winch carried on the frame 13. The front rearwardly facing bowl 21 is carried by a frame 24 rigidly supported from the yoke 8, the raising and lowering of this bowl being controlled by a winch mounted on the frame 11. The tail gates 44, 45 of the bowls are pushed away from the digging ends by the earth during loading and are caused to eject the earth when the bowls are moved a certain distance apart from each other by the screw unit due to the limitation of movement between the rods 50, each attached to a tail gate. Either or both bowls may be filled by locking either the wheels of the tractor or the rear wheels 19 and then contracting the screw unit. The rear bowl may be filled on being towed forward by the tractor or the bowls may be filled by the tractor towing the scraper forward at the same time as the screw unit is contracted.
Patent GB-828338-A (GB)
Title: A method of forming films of chromium oxide
IPC: B29C65/42
Filed: 1956-12-10
Abstract: Films of chromium oxide are formed on glass or ceramic surfaces by heating the surface to a temperature above 800 DEG  F. and spraying the heated surface with a solution of an oxygenated chromium compound of the type CrO2X2, where X is a halogen, e.g. chromyl chloride.  The preferred solvent is acetic acid.  The chromium compound may be mixed with a tin compound so as to produce a mixed oxide coating or a layer of chromium oxide may be deposited on a layer of tin oxide formed by a similar process from stannic chloride.
Patent GB-904841-A (GB)
Title: Method of and apparatus for performing arithmetical operations
IPC: G06F11/08
Filed: 1959-11-06
Abstract: 904,841. Arithmetic matrices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 6, 1959 [Nov. 6, 1958], No. 37733/59. Class 106 (1). [Also in Group XXXIX] An arithmetic operation is performed by marking one input conductor from each of two sets of conductors thus selecting and switching one magnetic core of an array to mark a sense line which threads all cores which when switched represent the same numerical result of the operation. All cores are initially in a first stable state when a conductor of one set of cores is marked to switch the group of cores with which it is associated from the first to a second stable state. A conductor of the second set is then marked and one of the cores of the switched group is driven from the second to the first stable state, its output marking the sense line representing the result of the operation. Fig. 1 shows an addition matrix having eleven rows and ten columns. A row is marked by closing a switcn from Io to I 10  when generator G operates at time A, and a column is marked by closing a switch from I<SP>1</SP> 0  to I<SP>1</SP> 9,  when generator G<SP>1</SP> operates at time B. A sense line from the set S 1  to S 9 , S 0 , threads all cores for which the row co-ordinate M plus the column co-ordinate N equals K(mod10). An additional carry sense line (not shown) threads all cores for which M+N>9 9 and produces an output at gate ER. A carry is added to the first operand before the row is selected. The significance of selecting a particular core of the array depends entirely on the sense lines and a single core may have three sense lines representing respectively the sum, difference and product of the numbers represented by selecting the row and column to which the core belongs. The result may be sensed in binary-coded decimal form by having only four sense lines, each line threading those cores representing decimal numbers in which the binary one represented by the line exists in the binary-coded form of the decimal number. The operands may be entered as biquinary or 1-2-4-8-coded decimals either directly on input conductors or so as to select the appropriate decimal representing input conductor.
Patent GB-972109-A (GB)
Title: Shelf brackets
IPC: A47B57/04
Filed: 1963-09-25
Abstract: 972,109. Shelf brackets. H. DUSTMANN. Sept. 25, 1963 [Oct. 4, 1962], No. 37746/63. Heading A4B. A shelf support 1 has a vertical extension 2 with end plate 5 and a further plate 6 is welded to it at 7, the lower end of plae 5 having in a tapped hole an adjusting screw 4 which engages plate 6 which is resilient and causes spreading of plates 5, 6 so that when the support is mounted in a pillar 3 of rectangular cross-section the screw can be turned by a screw-driver inserted in a hole 9 and the angle of the support adjusted.
Patent GB-755500-A (GB)
Title: Process for agglomerating fine grained materials
IPC: C22B1/24
Filed: 1954-12-31
Abstract: Fine grained or pulverulent materials, particularly hygroscopic materials, are mixed with salts containing water of crystallisation which form coherent binding residues on removal of the water, the water being then split off, e.g. by heating, and the mixture being then shaped to the desired form.  The material to be agglomerated may be those containing oxides, hydroxide and for carbonates of alkali, alkaline earth or earth metals which are p  mixed with crystalline soda of grain size up to 1 m.m., the mixture being warmed to a temperature above 32 DEG C., e.g. 40 DEG -50 DEG C., and then immediately pressed to shaped bodies under a pressure of up to 300 Hg./cm2.  Pore forming substances such as fine raw coal or powdered lime may also be included in the mixture.  Mixing and heating may be effected in different apparatus, e.g. in a rotary mixing drum or worm and a rotary furnace respectively, or the mixing apparatus may itself be provided with means for heating the materials during mixing.  The shaped bodies may subsequently be heated for up to 3 minutes at temperatures above 100 DEG C., preferably 150-300 DEG C.
Patent GB-1191528-A (GB)
Title: Optical Projector.
Inventor: HABERLE KARLHEIZ
IPC: G09F19/18
Filed: 1967-08-17
Abstract: 1,191,528. Optical projectors; lamphouses. EASTMAN KODAK CO. Aug.17, 1967 [Aug. 23, 1966], No.37963/67. Headings G2E and G2J. An optical projector has a bi-metallic switch 5 which is directly heated by coil 4 and is located in the air-stream of a tangential cooling fan 1, failure of the fan thereby resulting in rapid heating of switch 5 which then cuts off the projector circuit until manually re-set by latch 6. The heating coil voltage may be taken from the motor circuit, the primary winding of the projector transformer, the lamp circuit, or from the motor and primary winding circuit.
Patent GB-1094163-A (GB)
Title: Improvements in and relating to textile machines
Inventor: MACKIE JOHN KAY PRINGLE
IPC: D01H1/10
Filed: 1963-09-26
Abstract: 1,094,163. Two-for-one twisting apparatus. JAMES MACKIE & SONS Ltd. Sept. 22, 1964 [Sept. 26, 1963], No. 37975/63. Heading D1D. In a two-for-one twisting machine having a let-off or take-up package carried in a bracket 32 around which the yarn is ballooned by a flyer, the bracket being normally held against rotation by a magnet e.g. 76, on the bracket or on the machine-frame and a cooperating member, e.g. 78, which may also be a magnet, on the frame or bracket respectively, a movable member e.g. 80 is carried by the frame or the bracket on the opposite side of the balloon to a magnet and remote from the cooperating member, so that on rotation of the bracket in either direction, the member is subjected to attraction of the magnet and is caused by said attraction or centrifugally to move across the balloon path and sever the yarn, and to engage either the magnet or the frame as the case may be to stop the bracket rotating, the member, once it has been attracted by the magnet, remaining in operative position even if it is no longer attracted by the magnet. The member 80 is pivoted at 82 and remains in position owing to its weight or because a latch 102 falls down behind it when it is moved. In general form, the apparatus is as described in Specification 948845 (Division D1, D2) and includes a thread-detector 94 (not shown) acting on thread failure to close a contact of a stop motion.
Patent GB-1242444-A (GB)
Title: Improvements in or relating to methods of enriching valuable raw materials
Inventor: SAUNAL R
IPC: B02C17/02
Filed: 1968-08-09
Abstract: 1,242,444. Screening ores; autogenous mills. SOC. DES MINES D'ANDERNY CHEVILLON. 9 Aug., 1968 [21 Aug., 1967], No. 38113/68. Headings B2A and B2H. In a method of enriching ores, e.g. of low iron content, the constituents of which have different degrees of friability and different contents of valuable components, the ore is submitted to a self-grinding treatment in a rotatable screening drum so that the softer constituent of the ore is ground to a predetermined particle size which is controlled by the discharge of the softer constituent through the perforations of the drum as it attains the predetermined particle size. The screening drum 1, Fig. 1, which is belt driven by an electric motor 5 is formed of longitudinal beams 9 and bracing and reinforcing rings 10 defining between them spaces for the reception of screening segments 2. The segments 2 may comprise spaced radial strips 6, Fig. 3, or perforated plates 7, Fig. 4. The segments may be detachable and may be removed from the exterior of the apparatus. The apertures formed in the segments may be adjustable in size and the size of the apertures may vary from one segment to the next in the direction of travel of the ore through the drum. The drum may be constructed of parts that can be readily disassembled. The ore to be treated is fed through a frusto-conical section 4 having an adjustable inlet passage provided by interchangeable collars. Discharge of the harder constituent takes place through a frustoconical section 8 in which may be fitted extraction blades 12. The drum is housed in an asymmetrical manner in a casing 13 to provide better discharge of the ground softer constituent on to a transfer mechanism, e.g. a conveyor belt, disposed beneath the casing. The beams 9 carry on their outer surface spaced pointed protuberances to prevent clogging of the zone receiving the screened softer constituent. The casing 13 is mounted on a supporting frame 3 the inclination of which may be varied between 0‹ and 10‹ by means of a screwjack.
Patent GB-342077-A (GB)
Title: Improvements in or relating to sheet metal containers
IPC: B65D43/02
Filed: 1929-12-12
Abstract: 342,077. Closures for sheet metal cans &c. SCHMIDT, E., 73, Augsburgerstrasse, Berlin. Dec. 12, 1929, No. 38163. Convention date, Dec. 14, 1928. [Classes 21, 66, and 125 (iii).] A can 1 having a detachable dished lid 3, with edges of inverted U-shaped cross section is 'characterized by the neck portion 2, which is fixed to the top of the can, being so shaped that the outer face of the inner rim 4 of the U aligns with the inner face 9 of the reduced portion of the neck, while the inner face of the outer rim 5 of the U aligns with the outer face 10 of the neck, so that an enclosed annular air space 11 is formed between the neck 2 and the lid 3, which air space is reduced in volume as the lid is pressed on to the can, thus forming a compressed air cushion between the neck of the can and the lid, which prevents any creeping action on the part of the liquid in the can. The free edge of the lid is turned or rolled over at 6 to facilitate removal of the lid and to avoid sharp edges.
Patent GB-1111715-A (GB)
Title: Mine roof supports
Inventor: MACRAE RONALD LOUIS JOHN
IPC: E21D11/18
Filed: 1964-09-18
Abstract: 1,111,715. Mine-roof supports. COAL INDUSTRY (PATENTS) Ltd. 14 Sept., 1965 [18 Sept., 1964], No. 38183/64. Heading E1E. A yielding arched mine roof support includes two roof-engaging members 1, 2, hinged at 3, having floorengaging hydraulic props 4, 5 and interconnected by a retractable strut 6, yieldable to shorten so that a member 1 or 2 can have limited pivoting about the other. Each prop 4, 5 is extensible and retractable and the shaft 6 is a hydraulic jack pivoting on each member 1, 2.
Patent GB-371398-A (GB)
Title: Improvements in apparatus for passing electric currents through gases
IPC: B03C3/38
Filed: 1930-12-18
Abstract: <PICT:0371398/III/1> <PICT:0371398/III/2> In apparatus for passing electric currents through gases, particularly for the removal of suspended particles, having at least two electric fields, one of which extends in the direction of the gas stream and produces ionization of the gases, and the other of which extends across the gas stream and causes migration of the ions across the stream and charges the suspended particles in the gas which are then precipitated by the charging field or by a separate field at the precipitating electrodes, the ionizing are electrodes are arranged to form a substantially plane surface. The ionizing electrodes may consist of a series of parallel rods 20, 21 as shown in Fig. 1 connected alternately to a source of voltage 13, preferably alternating.  The charging field is set up between electrodes 16, 17, which also serve as precipitating electrodes, fed by either alternating or direct voltage 18.  The ionizing voltage is preferably high in comparison with the non-ionizing voltage.  As shown in Fig. 4, the electrodes 46, 47 may be connected in parallel to one pole of the charging voltage, supplied by a transformer 60 and rectifier 62, the other pole being connected to one group 57 of the ionizing electrodes, thus giving two symmetrical charging fields, each between one set of ionizing electrodes and one electrode 46 or 47.  The ionizing electrodes are supplied by a transformer 61.  A condenser 67 is provided for smoothing the charging voltage.  The ionizing electrodes or some of them may be covered with insulating material such as glass, porcelain, rubber, mica, gums, &c., or with semiconductive material such as slate, concrete or paper compositions containing metals, for example one set of ionizing electrodes 56 may be so covered and the other set left bare. Specification 319,217, [Class 1 (i), Chemical processes &c.], is referred to.
Patent GB-915245-A (GB)
Title: Method of producing castings of explosive or propellent material which are free or substantially free from shrinkage cavities
Inventor: RIEDL HANS-JOACHIM
IPC: F42B33/02
Filed: 1961-10-25
Abstract: 915,245. Filling projectiles. WASAGCHEMIE A.G. Oct. 25, 1961, No. 38257/61. Class 9 (2). In the filling of projectiles and cartridges, castings of explosive or propellent material are obtained by heating the upper part of the cast melt or molten mixture during the period of solidification by thermal radiation from a heating cover or duct heated by steam or a circulatory liquid. Infra-red ray heating may also be used. The melt may be nucleated or cast in a semisolidified form. In one embodiment, 25 shell cases of 8.8 cms. calibre are placed in a water box in such a way that one-sixth to one-fifth of their length projects from the top of the box (see Fig. 2). Cylindrical feed heads of 1 cm. gauge are then screwed into the cases, and steam or oil at 110‹ C. is circulated for about 40 minutes while the molten T.N.T. in the shell case is slowly solidified by means of cooling water. In a modification (Figs. 3 and 4, not shown), shell cases in a water box are pushed on a roller bed underneath a quintuple heating duct 5 metres long, the duct being maintained at 120‹ C. and the period of residence in the duct being about 40 minutes.
Patent GB-978831-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
Inventor: HUNT MALCOLM FREDERICK
IPC: A44B19/30
Filed: 1961-10-26
Abstract: 978,831. Sliding clasp fasteners. AERO ZIPP FASTENERS Ltd. Sept. 28, 1962 [Oct. 26, 1961], No. 38314/61. Heading E2S. A slider for a sliding clasp fastener comprises a body 2 including a single slider shield 3 having inturned flange portions 4 for engaging fastener stringers, a neck portion 8, a locking member 24 carrying a locking finger 29 and arranged in pivotal engagement with the neck portion, the locking member serving also for attaching a pull member 32 of the slider, a spring member 18 having portions 21 which engage a formation 11 on the neck portion of the slider body and a portion 33 which bears against the locking member, the locking member being acted on by the spring member in such a manner that when the slider is provided on sliding clasp fastener stringers, the locking finger is normally urged into a locking position with respect to the stringers, the locking member being movable against the action of the spring member by operation of the pull member, the locking member having a recess or projection 26 which is pivotally engaged by a projection or recess 15 provided on the neck portion. As shown the formation 11 consists of two post members 12, 13 and on the sides facing away from each other these have recesses 16 which receive lugs 17 which are carried by the portions 21 of the spring member. The co-operation of the lugs and recesses fastens the spring member to the formation but permits limited movement of the spring member. The locking member is received between the post members and has a curved said projection 26 which pivotally engages a curved said recess 14. The spring member engages a step 34 of the locking member and it also has a portion 22 which resiliently engages the slider body to bias the locking member to its locking position. A cam surface 35 on the body is engaged by the pull member to move it into engagement with the locking member if the pull member is not gripped at a suitable angle by user. A projection 27 limits movement of the locking member. In modifications the recess 14 is replaced by a projection and the projection 26 by a recess to provide the pivotal mounting. The pull member is in two parts hingedly connected so that it can always be flat and the portion 22 instead of engaging the body can engage the locking member instead of the portion 33.
Patent GB-1457473-A (GB)
Title: Packing of a plurality of pneumatic vehicle tyres
IPC: B65D85/62
Filed: 1974-09-03
Abstract: 1457473 A packing of pneumatic vehicle tyres CONTINENTAL GUMMI-WERKE AG 3 Sept 1974 [31 May 1974] 38348/74 Addition to 1457472 Heading B8C A packing of a plurality of pneumatic vehicle tyres 5 in the form of several layers of tyres partly overlapping one another in the manner of roofing tiles and compressed to a fixed end state with a direction of overlap alternating between the layers, and secured against resilient recoil, is characterized in that the layers, extending between rigid end stops 8, contain, in alternating sequence, even and odd numbers of tyres. As shown in Fig. 1, a large number of identical tyres 5 are stacked, in the manner described above, on a pallet 4 the odd and even layers containing respectively six and five tyres. The packing may contain two, or more, sideby-side rows of tyres. Fixed, or removablymounted, walls 18 are provided at both ends of the pallet. The loosely stacked pile of tyres is subjected to a compression force P, Fig. 1, and compacted to an end state, as shown in Fig. 2, the individual tyres being so interembraced between the walls 8 that any recoil movement of the tyres is substantially negligible. A tension-resistant member 9 may be fitted between the upper ends of the walls 8. After compression the walls 8 may be folded away, the completed packet unit being supported exclusively against the four corner sections of the pallet 4.
Patent GB-1518832-A (GB)
Title: Lifting apparatus
IPC: B66C15/00
Filed: 1975-09-18
Abstract: 1518832 Safety devices in lifting apparatus DEMAG AG 18 Sept 1975 [16 April 1975] 38368/75 Heading B8H Lifting apparatus includes a motor 3 winding a rope 4 passing over a load pulley 5 and anchored at a cable traverse 7. Strain gauges 10a, b, c, d provide a continuous signal indicating deformation of the material of the traverse when the apparatus is under load, the motor 3 being cut-out when the signal indicates that the load exceeds a predetermined value. A single strain gauge may be used (not shown) and the term "strain gauge" is to be taken to include any device producing an electrical signal continuously indicative of the deformation of the part of the lifting apparatus to which it is attached.
Patent GB-820813-A (GB)
Title: Improvements in or relating to push-pull transistor oscillators
IPC: H02M3/338
Filed: 1956-12-17
Abstract: 820,813. Rectifying. GENERAL MOTORS CORPORATION. Dec. 17, 1956 [Jan. 12, 1956], No. 38376/56. Class 38 (2). [Also in Group XL (c)] A push-pull transistor inverter circuit of the type comprising a feedback transformer arranged to render the transistors alternately conducting, has a time constant circuit connected in the input circuit of each transistor to permit the input current to be initially high but to cause it thereafter to decrease. In the circuit shown the two transistors 10, 10<SP>1</SP> are connected to a transformer having a primary winding 36, 37, a feedback winding 62, 63 and an output winding 100. The feedback winding is connected to the bases of the transistors through time constant circuits 66, 68 and 74, 76 which permit the initial feedback current to be high but thereafter reduce it to a safe value for the transistors. A resistor 90 ensures that oscillation starts when the circuit is switched on. The output winding is connected to a fullwave rectifier 94 and smoothing circuit 108, 110, 112. The circuit may use junction or point contact transistors.