baber/WOPTO huggingface dataset:
Patent GB-808728-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F7/02
Filed: 1955-09-16
Abstract: <PICT:0808728/III/1> <PICT:0808728/III/2> <PICT:0808728/III/3> In a heat-exchanger block having openings 19 for one or more fluids particularly in gas absorption apparatus involving exothermic and endothermic reactions where it is desired to heat or cool the reacting media and/or the products of reaction, e.g. hydrochloric acid in aqueous solution, and in which said openings extend through the block from one end face to the other, each of a plurality of such openings surrounding a central passage 15 is of increasing cross-sectional area over at least a part of its length and preferably a number of such blocks are stacked one upon the other so that the openings 19 together define ducts each having therein a plurality of annular ridges, formed, for example, at the junction between a tapered portion and a parallel portion of the opening (see Figs. 2 and 3).  In the form shown, passages 16 for one fluid extend from the central duct 15 to the outer surface of the block, another fluid passing through the ducts formed by the openings 19.  Annular recesses 17, 18 are formed at opposite ends of the block, the recess 18 being placed uppermost when the block is in use and its surface being formed with a large number of small grooves 29 to aid fluid distribution around the openings 19. Other grooves 22-23 are provided in the ends of the block to receive packing rings.  The Provisional Specification describes an apparatus employing heat-exchanger tubes extending between tube plates and each comprising a plurality of graphite tubular elements having inner and outer surfaces of frusto-conical form arranged coaxially, the smaller end of one element entering the larger end of the next element and packing-rings of rubber or other resilient material being interposed. Specifications 736,305, 756,327 and 756,420, [all in Group XIII], are referred to.
Patent GB-1249209-A (GB)
Title: Machine for transferring data between memories
IPC: G06F13/28
Filed: 1969-05-23
Abstract: 1,249,209. Computers. FUJITSU Ltd. 23 May, 1969 [25 May, 1968], No. 26570/69. Heading G4A. In an electronic computing system comprising memory means, and at least one central processor, a data transfer device is provided separately from the central processors capable of holding two memory addresses and data and transferring such data from one address to the other. In one embodiment, two processors each communicate with each of a plurality of memories and each of a plurality of I/O controllers, each I/O controller communicating with each memory and with I/O devices, and one or more I/O controllers each contain a transfer device as above, having a register to receive a transfer instruction from a memory under command of a programme in a processor, this programme being interrupted and another proceeded with until the transfer is complete, the instruction containing an operation code and specifying beginning source address, beginning destination address and number of words to be transferred, there being means for incrementing the addresses and decrementing the word count, and a buffer register being included through which each word transferred is passed. This buffer register is also used during I/O operations, connected between the I/O device and memory. As a modification, the I/O controller used for memory-memory transfers is not used for I/O. A second embodiment differs from the first in having channel controllers replacing the I/O controllers above, both with respect to interconnections between modules and location of the transfer devices, except that each channel controller is connected to its I/O devices (if any) via a respective plurality of I/O controllers.
Patent GB-241936-A (GB)
Title: Improvements in and relating to lubricant injectors
IPC: F16N3/12
Filed: 1925-10-23
Abstract: 241,936. Billeter, J. Oct. 23, 1925. Actuating by liquid pressure; single-acting bucket pumps; reciprocating - cylinder pumps; suction reservoirs.-Apparatus for injecting lubricants comprises a piston acting on the lubricant, and a differential piston brought into action when required to increase the pressure, the first piston being preferably arranged in a cylinder 1, Fig. 11, connected by a pipe 33 to a casing 4 containing the differential piston. The differential piston is acted on by a spring tending to hold it up, and means for reducing the effective area of the piston in its upper position, or stops are provided. In the form shown in Fig. 2, lubricant contained in the cylinder 1 may be expelled by a piston 2 through a passage 11; when the passage 11 is closed by a valve 13, the pressure in the cylinder 1 operates the differential piston 6, 7 against the action of a spring 9. The passage 11 and valve 13 may be replaced by a passage through the differential piston provided with a spring-controlled valve. In other modifications, means are provided for holding the differential piston stationary; the piston is freed, when required, by rotating it until the pin 27, Fig. 5, on the piston is in alignment with the slot portion 26, by rotating the casing 4, Fig. 8, to bring apertures 24 opposite pins 23 carried by the piston, or by rotating a part of the casing to bring slots into register so that a pin on the piston is free to descend.
Patent GB-600690-A (GB)
Title: Improvements in light-polarizing bodies
IPC: G02B5/30
Filed: 1945-10-11
Abstract: 600,690. Glass manufacture. ABBEY, A. (American Optical Co.). Oct. 11, 1945, No. 26634. Drawings to Specification. [Class 56] [Also in Group XX] A polarizer in the form of a plate, the surfaces of which may be ground to spherical or other shape, comprises a transparent glass which has been stretched in a heated condition and in which are embedded dichroic crystals such as tourmaline or epidote oriented by the said stretching. Ordinary glass may be formed on the surfaces of the polarizer (see Group XX). Ultra-violet or infra-red absorbing glass may be used, an example of the latter comprising 72 parts by weight of SiO 2 , 14 parts Na 2 O, 1 part Na 2 SO 4 , 1 part NaCl, 8 parts CaO, 4 parts Fe 2 O 3  and a fraction of one part of As 2 O 5 .
Patent GB-1509211-A (GB)
Title: Digital counting arrangements
IPC: H03K21/08
Filed: 1975-06-24
Abstract: 1509211 Reading electronic counters LICENTIA PATENT - VERWALTUNGS GmbH 24 June 1975 [23 July 1974] 26688/75 Heading G4D The first decimal digit in a BCD counter is rounded to 0 or 5 during readout by arranging that only one binary stage in the first decimal stage feeds the decoder and thus the display. In Fig. 1 the lowest order decimal stage comprises bi-stables 8-9; each of the other decades has a Johnson ring counter which can be converted by switching to a shift register for read out. The counter counts pulses for a period determined by a control 19 and gate 7 thereafter shift pulses are applied to feed the counter states to a decoder from where they are applied in succession to a display by a multiplexing arrangement (not shown). The first 20 shift pulses (5 per decade for Johnson code) feeds to states of the four stages 13-16 to the decoder. The remaining five pulses reads the output C of stage 9 five times to the decoder. If the state of stage 9 is zero a strain of five zeros will appear at the decoder and the display will show "0". If stage 9 is at one then the decoder receives five ones which is interpreted to display "5". Another arrangement is mentioned using the ordinary 1-2-4-8 code instead of Johnson code. The arrangement is designed to give maximum accuracy for the minimum number of connections to for instance an MOS integrated circuit.
Patent GB-693507-A (GB)
Title: Improvements in or relating to machines for cutting shapes from sheet material
Inventor: COLLINSON FREDERICK BAKER
IPC: A43D27/00
Filed: 1950-11-02
Abstract: 693,507. Cutting-machines. COLLINSON'S PATENTS, Ltd. Nov. 1, 1951 [Nov. 2, 1950], No. 26720/50. Class 31 (i). A machine for cutting shapes from sheet material, e.g. shoe soles from leather, comprises a cutting member 20 having knives 28 arranged thereon to form a multiple pattern, and a pressing member in the form of a roller 23 which is geared with the cutting member so as to be rotated as the cutting member is traversed relatively to the roller. As shown in Fig. 2, the member 20 consists of a table which is reciprocated under the roller 23 and provided with a rack 24 meshing with a gear 25 on the shaft of the roller ; the peripheral speed of the roller may be the same as, or slightly greater than, the linear speed of the table. Alternatively, the rack 24 may be inverted as shown in Fig. 4 and mesh with a gear 29 which drives through idlers 30, 31, the gear 25 on the roller shaft. The surface of the roller may be of soft metal or other material, and it may be provided with a recessed pattern 27 with which the knives 28 register during cutting ; this pattern may be actually produced by the knives. Specifications 678,270, 678,284 and 678,289 are referred to.
Patent GB-1075263-A (GB)
Title: Automatic tensile stress regulating or control apparatus for winding arrangement
Inventor: WARWICK JOHN
IPC: B65H59/04
Filed: 1964-06-29
Abstract: 1,075,263. Braking supply reel. COMPENSATING TENSION CONTROLS Inc. June 29, 1964, No. 26788/64. Heading D1J. The tension in a thread being wound is controlled by braking the supply reel YP, the supply reel YP having a brakedrum 16 engaged by a brake band 17 anchored at one end via a tension spring 19 to a baseplate 10 and at the other end to a lever 25 adapted to be moved by a torsion device 38. The torsion device 38 consists of a main shaft (50) rotatably mounted on the baseplate 10, the shaft (50) carrying two guide pulleys 44 so arranged that when the winding material from the supply reel YP is looped around one pulley in one direction and around the other pulley in the other direction, the tensile force in the material causes an angular displacement of the torsion device against a torsion spring (41) (see Fig. 3, not shown) to control the effect of the brake band. To avoid excessive braking, the end 20 of spring 19 is yieldably connected to the base plate 10 through a pivoted double lever 29 which is loaded by an adjustable spring 35.
Patent GB-463924-A (GB)
Title: Improvements in or relating to bicycle drives
IPC: B62M1/24
Filed: 1936-10-03
Abstract: 463,924. Treadle driving-mechanism for cycles. LIENHARD, F., MAAG, P., and SCHUTZE, H. Oct. 3, 1936, No. 26868. Convention date, Oct. 4, 1935. [Class 136 (ii)] In driving-mechan. ism for bicycles, of the type in which vertically reciprocating treadles in the form of two-armed or equivalent levers are connected with the driving chain-wheel through intermediate cranks, the pedals 9 of the treadle levers 8 are given an approximately linear path (e.g. a narrow crescent-shaped path) by mechanism comprising two crank shafts 2, 4 mounted in a drive box 1 and geared together by wheels 6, 7 for opposite rotation, crank arms 3, 5 fixed to both ends of the shafts being arranged at 180‹ to each other, while the levers 8 are mounted with their intermediate parts pivoted to one pair of coaxial crank arms 3, and their rear ends connected, as by links 10, to the other pair of crank arms 5. A sleeve 11 is loosely mounted on the front crank shaft 2 and projects outside the box 1 to carry the chain wheel 12 connected by a chain to the rear wheel. A variable gear is provided by means of a hub 13 keyed for displacement along the sleeve 11 and provided with spurwheels 14, 16 for selective engagement with spur-wheels 15, 17 keyed to the crank shaft 4. In the direct-drive position shown, the sleeve 11 and sprocket 12 are driven through the hub 13 and pins 14a engaging the spur-wheel 7. In a modification, the treadle levers are connected to the crank arms 3, 5 by lazytongs links.
Patent GB-881857-A (GB)
Title: Improvements in or relating to the recovery of zinc from zinc-containing materials
Inventor: LUMSDEN JOHN
IPC: C22B19/04
Filed: 1958-08-21
Abstract: Zinc is recovered from zinc-bearing slag of low lead content, e.g. from a lead blast furnace, by blowing into the molten slag a pulverised carbonaceous fuel of low hydrogen content together with only sufficient air to produce a reducing mixture of CO + CO2.  The liberated zinc vapour is condensed, in for example, a lead-splash condenser of the type described in Specification 572,961.  Slag of high lead content may first be blown with a carbonaceous fuel and sufficient air to burn the fuel to carbon dioxide, the air being carefully controlled to minimise liberation of zinc while avoiding the formation of magnetite or zinc ferrite.  Lead is volatilised as lead sulphide; lead oxide dross or similar plumbiferous material may be added to the slag to promote sulphur removal and enhance the efficiency of condensation in the subsequent zinc recovery stage. Dross from the zinc condenser, which contains much lead, may be sintered with zinc-bearing lead concentrates, and charged to the lead blast furnace.
Patent GB-519306-A (GB)
Title: Improvements in fastening devices such as a button or tape
IPC: A43C9/04
Filed: 1938-09-15
Abstract: 519,306. Moulding buttons, tags, &c. FRIDOLPH, A. E. Sept. 15, 1938, No. 26899. [Class 87 (ii)] A fastening device is formed by lapping upon itself or tying upon itself part of a sheet or strip of flexible material, impregnating that part with plastic material and applying heat and pressure to solidify the plastic material. In the form shown in Fig. 1, a napkin folded along the line 21 is again folded at its end portion which is then impregnated with plastic material. The extremity 20b is then folded upon itself and heat and pressure are applied. In the form shown in Fig. 5, the end of a flat shoe lace is impregnated with plastic material and is folded inwardly on itself, as shown at 23. Heat and pressure are then applied. In the form shown in Fig. 6, a tape 25 has a button 24 moulded about a folded portion 25a. In the form shown in Fig. 9, a piece of gauze folded on itself at 30 is twisted at intervals through 360‹, a piece of tape 31 folded at its end being united to the gauze by plastic material. In another form, a tag of plastic material is moulded about a knot on the end of a cord.
Patent GB-871604-A (GB)
Title: Improvements in or relating to garbage incinerators
IPC: F23G5/00
Filed: 1958-08-21
Abstract: 871,604. Incinerators. DE ROLL S.A., L. Aug. 21, 1958 [Aug. 23, 1957], No. 26952/58. Class 51 (1). In a refuse incinerator, nozzles 7 direct air over the drying grate 1 from the side walls. The nozzles 7 may be fixed in the walls, or deflectable from outside. The volume of air delivered may be controlled from outside, and the air sweeps the entire space between the refuse on the drying grate and the roof of the incinerator. The outlet for the gaseous products of combustion is arranged so that these gases do not sweep the garbage in the drying grate.
Patent GB-915734-A (GB)
Title: Improved method for the recovery of chemicals out of waste lyes from the manufactureof cellulose
Inventor: AHLBORG NILS KNUT GABRIEL
IPC: C01D5/14
Filed: 1960-08-03
Abstract: <PICT:0915734/III/1> In the preparation of sodium sulphite from sodium carbonate and sodium sulphide in a solution of melt soda (melt soda is obtained by evaporating and combusting waste lyes from the digestion of cellulose-containing material with sodium sulphite and/or bisulphite solution), the solution is reacted with carbon dioxide to obtain a sulphide-free solution and a mixture of carbon dioxide and hydrogen sulphide; this gas mixture is reacted with sulphur dioxide to obtain a mixture of carbon dioxide, water vapour and elemental sulphur; the carbon dioxide is separated and reacted with further melt soda solution; the sulphur is burnt and a part of the sulphur dioxide obtained is reacted with further carbon dioxide and hydrogen sulphide mixture, while the remainder is reacted with a sodium sulphite solution to form sodium bisulphite, which is reacted with the sulphide-free solution to obtain sodium sulphite and carbon dioxide.  In an example melt soda solution from a plant 1 (see the drawing) is passed by a line 2 to a tower 4 and carbon dioxide is introduced by a line 5. Carbon dioxide and hydrogen sulphide are removed by a line 6, passed to a plant 14 and reacted with sulphur dioxide entering by a line 16, and the carbon dioxide returned to tower 4 by line 5.  Molten sulphur is removed by a line 17, burnt in a chamber 18, and sulphur dioxide-containing gas passed by a line 21 to a tower 22 where part of the sulphur dioxide is dissolved in water.  The water containing sulphur dioxide is sent by a line 23a to a storage vessel 25 and then to a distillation column 27, where sulphur dioxide gas is obtained and passed by line 16 to plant 14. Gas containing undissolved sulphur dioxide is removed from tower 22 by a line 29 to a tower 30 where it is reacted with a solution of sodium sulphite and bisulphite introduced by a line 31, to form a solution of sodium bisulphite which is passed by a line 32 to a tank 33.  Some of the solution from tank 33 passes by lines 34 and 36 to tower 4 to react with sulphide-free solution formed therein to release carbon dioxide and form sodium sulphite solution. Sodium sulphite solution formed in tower 4 passes by a line 39 to a storage tank 41, from where some is taken by lines 42 and 44 to a scrubber 49 where sulphur dioxide is recovered from flue gas entering by line 3 from plant 1, the solution of sodium sulphite and the bisulphite formed by reaction with the sulphur dioxide then passing through a storage tank 52 into tower 30 by line 31. Sodium sulphite solution from tank 41 passes by lines 42 and 43 to a vessel 37 where it is mixed with sodium bisulphite solution brought from tank 33 by lines 34 and 35, and passed to a tank 47 for further use in digesting cellulose-containing materials.
Patent GB-159256-A (GB)
Title: Improvements in and relating to reinforced-concrete floors
IPC: E04B5/29
Filed: 1919-11-03
Abstract: 159,256. Bowley, A. M. Nov. 3, 1919. Reinforced-concrete floors.-A floor is formed by suspending concrete slabs B from transverse beams A by twisting together the projecting ends C<1> of the slab reinforcements C, the ends being left extending, and filling in concrete over the slabs and beams. The beams rest at their ends on ledges or in recesses in the walls, or are supported by stirrups G from girders F. The lower parts of the girders are enclosed by slabs H, I, J having reinforcing-bars with the projecting ends pointing inwards, and alternate ends of these bars in the side slabs are twisted with those of the bottom slab, the remainder projecting from the bottom slab being bent to engage the girder. The meeting edges of the floor and beam slabs may interlock, and the ceiling faces may be smooth or corrugated or rough cast. Specifications 17660/03, 2597/08, 4116/08, 5667/08, and 113,669 are referred to.
Patent GB-534582-A (GB)
Title: Improvements in beverages
IPC: C12H1/052
Filed: 1939-10-02
Abstract: 534,582. Beverages. MUSHER, S. Oct. 2, 1939, No. 27041. [Class 14 (ii)] Spirits, wines, beers and unfermented beverages are matured or improved in flavour by treatment with flour obtained by grinding the press cake obtained after extracting oil from sesame or peanuts. The undissolved portions of the flour are removed by filtration, centrifuging, &c. A filter aid may be added. A portion of the beverage or alcohol may be used to form an extract which may be concentrated by evaporation and added to the beverage.
Patent GB-1105980-A (GB)
Title: New steroids and a process for their manufacture
IPC: C12P33/00
Filed: 1965-06-25
Abstract: The invention comprises 20-(11,41-dihydroxy-41 - methyl - pentyl) - D 7 - 5b  - pregnene - 2b ,3b  14a -triol-6-one, and a process for the manufacture of a compound of the general formula <FORM:1105980/C2/1> wherein, in a compound of the general formula <FORM:1105980/C2/2> a 14a -hydroxyl group is introduced by the action of selenious acid or by a biochemical method by the action of a 14a -hydroxylating micro-organism or enzyme, for example the enzymes from strains of the genera Curvularia or Heliocostylum or Absidia regnieri.
Patent GB-602635-A (GB)
Title: Improvements in or relating to neutralized high-frequency amplifiers
IPC: H03F1/16
Filed: 1945-10-17
Abstract: 602,635. High - frequency amplifiers. PHILIPS LAMPS, Ltd. Oct. 17, 1945, No. 27204. Convention date, June 14, 1940. [Classes 40 (v) and 40 (vi)] In a neutralized high-frequency amplifier for short waves, the leads connecting the cathodes and the leads connecting the neutralizing condensers to the grids are as short as possible and the input circuit is connected to such points in the grid leads that the ratio of the inductance between each point and the associated grid to the inductance of half the cathode connector is equal to the ratio of the anode-cathode and anode-grid capacities. Fig. 4 is the substitution diagram for the embodiment shown in Fig. 3. The neutradyne condensers Cn are so adjusted that which ensures that a voltage across the output circuit II does not produce voltage across G1F1, G2F2 respectively. The input circuit I is connected at points P1, P2 chosen so that in which LG1P1 represents the inductance of the lead between grid G1 and connecting point P1. This condition ensures that the input circuit is not affected by voltages across the output circuit II, and may be incorporated in the valve construction by providing two connecting terminals joined to the control grid by a common lead which has an inductance related to the inductance of the cathode lead as the anodecathode capacity is to the anode-grid capacity. Specification 383,545 is referred to.
Patent GB-780859-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F01C21/10
Filed: 1954-09-22
Abstract: 780,859. Rotary pumps. KIRKLAND, D.E. Dec. 20, 1955 [Sept. 22, 1954], No. 27438/54. Class 110 (2). In a rotary pump of the outwardly-sliding radial vane type at least a portion of the stator 14 is made of a resilient material such as rubber or synthetic plastic in order to prevent injury by jamming. The rotor is provided with scavenging pockets 21 as shown. Specifications 591,554, 605,740 and 717,273 are referred to.
Patent GB-1185487-A (GB)
Title: A Method of Reducing Tubes, Especially Thick-Walled Tubes, and Means for Practising the Method.
IPC: B21B19/06
Filed: 1967-06-14
Abstract: 1,185,487. Rolling. SVENSKA KULLAGERFABRIKEN A.B. 14 June, 1967 [16 June, 1966], No. 27502/67. Heading B3M. [Also in Division B5] A method of reducing thick walled metal tubes comprises axially rolling the tube between three co-operating rolls 2 without a mandrel such that the tube is reduced without any appreciable change in wall thickness, each roll having at least three zones, namely a feeding zone 3, a reducing zone 4 and a smoothing and rounding zone 5, 6. The rolling may be hot or cold with a reduction of 5 to 31%. The angle α is preferably 3-5 degrees and the angle # in excess of 40 degrees. The smoothing zone 5 is parallel to the axis of the tube at the point of contact. The zones 5, 6 may be combined into a single zone.
Patent GB-533110-A (GB)
Title: Improved hyper-sensitising process for photographic, cinematographic and x-ray plates or films
IPC: G03C1/09
Filed: 1939-10-09
Abstract: 533,110. Hyper-sensitizing silver halide emulsions. JANY, J. Oct. 9, 1939, No. 27532. Convention date, Oct. 8, 1938. [Class 98 (ii)] An emulsion is hyper-sensitized before or after exposure by treatment with mercury vapour from an amalgam with silver, copper, tin, potassium, or sodium. The plate or film may be placed in a glass receptacle at the bottom of which is a small vessel containing the amalgam, and the receptacle is hermetically sealed. The amalgam may be spread on blotting paper to increase the surface for evaporation. The treatment may be carried on for about 36 hours, and the temperature may be maintained at 18‹C. The glass receptacle may be enclosed in a light-tight receptacle. The Specification as open to inspection under Sect. 91 of the Acts referred also to the use of mercury itself as the source of mercury vapour. This subject-matter does not appear in the Specification as accepted.