baber/WOPTO huggingface dataset:
Patent GB-762837-A (GB)
Title: Web positioning device
IPC: B65H23/038
Filed: 1954-12-07
Abstract: 762,837. Automatic control systems for moving webs. GOODYEAR TIRE & RUBBER CO. Dec. 7, 1954 [June 29, 1954], No. 35385/54. Class 38 (4). [Also in Group XL (b)] In a system for automatically centring a moving web on a required line of travel a pair of photo-cells independently follow the irregular edges of the web, and an electrical signal representing the sense of the relative displacement of the cells from the required line of travel, and hence the sense of the deviation of the centre of the web from that line, initiates the necessary lateral displacement of the web to reduce the deviation to zero. The photo-cells 13, 14, Fig. 1, have associated light sources 3, 6, energized from a supply 8, and identical bridge circuit 15, 16 respectively. The latter are energized from a D.C. source B and comprise tapped potentiometers 19, 28 and pairs of triodes 17, 18 and 24, 25 respectively, the output of cells 13, 14 being applied respectively to the grids of valves 18, 24. The web is initially centred on the required line of travel, and the cells are aligned with the web edges and hence equidistant from the required line. The potentiometers 19, 28 are then adjusted to balance the bridges, the balance being indicated on ammeters 23, 29. Subsequent lateral movements of the web edges result in changes in the cell outputs with consequent out-of-balance outputs from the bridges, these being applied over choppers 31, 34 and phase-sensitive amplifiers 36, 37 to energize the reversible two-phase motors 38, 39 in a sense as to move the cells back into alignment with the web edges. Rotation of the motors 38, 39 also causes adjust. ment of tappings on potentiometers 42, 43, the latter being energized over a rectifier 46 and variable resistors 44, 45, 47 from the supply 8. The resulting current in winding 48 of a relay MP, having a direction depending on the sense of the relative displacement of the cells from the required line of travel, causes closing of one or other of relay contacts MP1, MP2. One or other of relay windings 51, 52 are thus energized over a rectifier 53 and resistors 54, 55 to close one of contacts 63, 64, and thus energize a reversible two-phase motor 61 over a changeover switch 65. Rotation of motor 61 causes an alteration in the angle of a teeter-roll in a correct sense as to restore the centre of the web to the required line of travel. With switch 65 in the MANUAL position, motor 61 may be controlled by a switch 66 for an initial setting of the web. Rectifiers 58, 59, connected across relay windings 51, 52, respectively, prevent arcing across contacts MP1, MP2. Each photocell unit, Fig. 2, comprises a cell housing 67, a light source housing 68, adjustable lenses 69, 70 for beam focusing, lead screws 74, 75 driven from a motor assembly 78 through gearing as shown, and a potentiometer 80 adjustable by motor 78. Units 78, 80 correspond to the motors 38, 39 and potentiometers 42, 43 of Fig. 1 respectively.
Patent GB-1273095-A (GB)
Title: Rotational impact tool
IPC: B25B21/02
Filed: 1970-07-22
Abstract: 1,273,095. Impact wrench. NITTO KOHKI CO. Ltd. 22 July, 1970 [30 July, 1969], No. 35451/70. Heading B3N. An impact tool comprises a motor, a driving member 16, a hammer body 22 pivotably mounted on a pin 21 to be tiltable, and an output shaft 13. Preferably, the hammer body has two hammers 23, 23<SP>1</SP> and the output shaft 13 has two anvils 11, 11<SP>1</SP> which have cam surfaces 11b, 11<SP>1</SP>b. Tilting is caused by the hammer body having a projection 24 which engages in a recess 15 in the driving member 16. In operation, for fastening a screw, rotation of the driving member causes hammer 23 to be tilted away from the anvil 11. During further rotation, cam surface 11<SP>1</SP>b co-operates with a cam surface 23<SP>1</SP>b on the hammer body to pivot the hammer 23 into an impact position with anvil 11. The motor is air driven and has a control valve for the direction of rotation and an on/off or speed control valve, neither valve being shown.
Patent GB-864847-A (GB)
Title: Method and apparatus for sheathing a structural member with a synthetic thermoplastic material
IPC: B29C48/06
Filed: 1959-10-20
Abstract: 864,847. Extruding coated building elements. S.A.S. LAVORAZIONE MATERIE PLASTICHE (L.M.P.) DI M. I. COLOMBO & C. Oct. 20, 1959 [Oct. 20, 1958], No. 35487/59. Class 87(2). A process of coating with thermoplastic material a member 22 having at least one concave angle comprises advancing the member 22 through an extrusion head 20, whilst applying vacuum to the inlet for the member in the head 20, and tightly clamping the layer 24 against the member 20 on its emergence from the head 20. The clamping means may be a rubber block 27 forced against the coating by a rubber band 28. In addition to the vacuum applied at the inlet of the machine a hollow needle 30 may be inserted in the emerging end of the coated member and vacuum applied from both ends. The member may be cooled by water sprays and advancement of the member and extrusion stopped before the whole of the member enters the head to ensure adherance of the coating, the uncoated portion being subsequently trimmed.
Patent GB-1477553-A (GB)
Title: Continuous casting mould for rods or bars
IPC: B22D25/02
Filed: 1975-08-28
Abstract: 1477553 Continuous casting LOUIS JÍRG GmbH 28 Aug 1975 [28 Aug 1974] 35606/75 Heading B3F A continuous casting mould has a number of through-cavities 10 interconnected by smaller through-cavities 11 so that rods or bars cast therein are joined by webs and (as a safeguard against their breakage during withdrawal) the two outermost rods or bars (although the drawing does not indicate it) have a larger cross-section than the others so that the rods or bars cast therein are correspondingly larger. The cavities 10 may converge in the direction of casting (which is vertical). The mould may be formed in two halves 1, 2 pressed together, with copper cooling plates 3 4, by screws 9 in at least one frame 8. Coolant is passed through the plates 3, 4. To finish the withdrawn rods, the webs are removed by sawing.
Patent GB-349100-A (GB)
Title: Improvements in softeners for plastic materials
IPC: C09D127/06
Filed: 1929-11-21
Abstract: Esters of phthalic acid are used as the plasticizer in coating compositions, such as spraying lacquers, in which the sole binding material is a vinyl ester polymer.  The phthalic ester may be dibutyl, dicyclohexyl, diethyl, cyclohexyl-butyl, or cyclohexylamyl phthalate and the esters of high boiling point are the more efficient.ALSO:Esters of phthalic acid are used as the plasticizer in plastic and coating compositions in which the sole binding material is a vinyl ester polymer.  The phthalic ester may be dibutyl, dicyclohexyl, diethyl, cyclohexyl butyl, or cyclohexyl amyl phthalate and the esters of high boiling point are the more efficient. Examples are given of films, moulded articles, and spraying lacquers prepared from polymerized vinyl chloride.ALSO:Esters of phthalic acid are used as the plasticizer in plastic and coating compositions in which the sole binding material is a vinyl ester polymer.  The phthalic ester may be dibutyl, dicyclohexyl, diethyl, cyclohexyl butyl, or cyclohexyl amyl phthalate and the esters of high boiling point are the more efficient.  Examples of films, moulded articles, and spraying lacquers obtained in accordance with the invention are given.
Patent GB-970179-A (GB)
Title: Improvements relating to digital transmission systems
Inventor: FOULKES RONALD MITFORD
IPC: H04Q9/14
Filed: 1962-09-19
Abstract: 970,179. Electric selective signalling systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 12,1963 [Sept. 19,1962], No. 35675/62. Heading G4H. In a field station system a central station cyclically calls upon each field station in turn to transmit indications of the states of switches thereat and while such indications are being transmitted back to the central station the central station can call and transmit control signals to any field station whatever its position in the cyclic sequence. A complete scanning cycle comprises a plurality of field station cycles-one per field station-each of which comprises Fig.1 eight blocks B1 to B8 each comprising eight bit periods p1 to p8. The data transmitted in each cycle by the central station is as follows:- B1 (block 1): the identity of the field station that is being called to transmit its indications; B2: the identity of the field station which is to respond to control signals; B3: the inverse of B1 for checking purposes; B4-B8: con-  trol signals. Thus in every cycle block 1 is used but the other blocks are only used when it is desired to transmit controls. The second bit in block 1 is a sync bit and every eighth bit in every block is a parity bit for the block. The central station comprises Fig. 2 an oscillator and counter producing bit p1 to p8 and block B1 to B8 clockpulses, a counter C stepped at B1, p1 time for sequentially calling the field station, and a switch SS for selecting a field station to which control signals set on contacts CS are transmitted. At the field station Fig. 4 called to transmit its indications by block 1 from the central station, the first block is received RX, staticised, and recognized DIC, thereby initiating the transmission back to the central station of indication signals as to the state of various contacts at the field station. These signals are shown in Fig. 3. Block 1 is empty because it corresponds to the period when the call is transmitted. At the field station which is called for control purposes (assuming that one is so called) the cell in block 2 is recognized and verified by block 3 by a circuit D.C.C. which causes the subsequent blocks 4 to 8 to be registered R4 to R8 to effect the required controls.
Patent GB-1523753-A (GB)
Title: Two-way data transmission system for cable television network
IPC: H04N7/173
Filed: 1975-08-29
Abstract: 1523753 Selective signalling; educational apparatus RAI RADIOTELEVISIONE ITALIANA 29 Aug 1975 [16 Sept 1974] 35719/75 Headings G4H and G5G In a communication system, an answer format signal initiates counting to a characteristic count to define a time for sending a reply. In a cable TV system in which TV programmes are sent by cable from a central station to subscriber stations, the central station can also send repeated digital messages over the cable to the subscriber stations. A subscriber station demodulates a message and passes it down a series of shift registers connected by jumpers to define a first delay and then to a word decoder (involving shift registers and diode matrices). A "fast" clock (bit clock) derived from the message, drives all the shift registers. The word decoder feeds data and commands to external apparatus and a display on a keyboard unit, and provides sync, reset and answer format (i.e. one of two possibilities for answer length) signals. The "fast" clock is divided down and used, inter alia, to provide a "slow" clock to drive a subscriber counter which is reset by the reset signal, counting starting on appearance of either answer format signal. When the counter reaches a predetermined count, respective to the subscriber, an answer gate signal is produced, of duration dependent on the answer format (length). The subscriber counter thus defines a second delay. The answer gate signal is used to gate out multiplexed information (from the keyboard and the external apparatus, and including indications of the subscriber predetermined count, see above, and the TV channel in use and the commands from the word decoder, and parity bits, as appropriate) for transmission (after modulation) over the cable to the central station, which thus receives the information from the different subscriber stations in turn, due to differing first and second delays in the different stations. The central station can allow for the different answer lengths by adjusting the time at which it sends its answer format information (arrival of which starts the subscriber counter). Application to voting, teaching (question and answer), meter reading, purchasing, alarm systems and pay TV is mentioned.
Patent GB-938989-A (GB)
Title: Insolubilisation of further-polymerisable methylol-phosphorus polymeric materials
Inventor: COATES HAROLD
IPC: C08G79/02
Filed: 1960-10-19
Abstract: A process for increasing the extent of polymerization and insolubility of a further polymerizable methylolphosphorus polymeric material containing at least one free methylol group attached to a phosphorus atom comprises reacting in solution the polymeric material and an alkali metal hydroxide and treating the resulting product with ammonia.  In the treatment of cellulosic materials (the most important application) the process comprises impregnating a cellulosic material with a further polymerizable methylolphosphorus material containing an alkali metal hydroxide, drying the treated material, preferably at 85 DEG  to 120 DEG C., treating the dried material with gaseous ammonia, and further treating with an aqueous ammonia system or by steaming in the presence of ammonia gas.  The aqueous ammonia system may be aqueous ammonia or a salt of a weak acid, e.g. ammonium carbonate or carbamate. In an example (18) a tetrakishydroxymethyl phosphonium chloride (THPC)-urea precondensate is mixed with aqueous sodium hydroxide solution.  Ammonia is added to precipitate a resin which, after washing with hydrogen peroxide, is filtered off and dried.  The polymer is flame-resistant.  Other examples describe similar reactions in which the resin is produced on a cellulosic textile or on paper.  Specification 906,314 also is referred to.ALSO:A process (applicable in the treatment of cellulosic materials) for increasing the extent of polymerization and insolubility of a further polymerizable methylolphosphorus material containing at least one free methylol group attached to a phosphorus atom comprises reacting in solution the polymeric material and an alkali metal hydroxide and treating the resulting product with ammonia.  A cellulosic material is impregnated with a solution of further polymerizable methylol-phosphorus material containing an alkali metal hydroxide, the treated material is dried, preferably at 85 DEG  to 120 DEG C., and the dried material is treated with gaseous ammonia and then further with an aqueous ammonia system or by steaming in the presence of ammonia gas.  The aqueous ammonia system may comprise aqueous ammonia itself or a salt of a weak acid, e.g. ammonium carbonate or carbamate.  In typical examples (1) cotton drill fabric is impregnated with a solution of a condensate of tetrakis hydroxymethyl phosphonium chloride and urea, a non-ionic wetting agent and sodium hydroxide.  The fabric is dried at 85 DEG -90 DEG C., then exposed to an atmosphere of ammonia gas and finally impregnated with aqueous ammonia.  After washing in soap and aqueous hydrogen peroxide solution the fabric is dried and shows increased flame resistance; (13) a similar process is applied to a filter paper, resistance to burning being imparted. In Example (5) cotton wool which has been similarly treated is dyed and found to have a deeper shade than when the treatment is p  omitted.  Specification 906,314 also is referred to.
Patent GB-1149243-A (GB)
Title: Improvements in and relating to the manufacture of peracetic acid
Inventor: HAGGER MICHAEL JAMES
IPC: B01J10/00
Filed: 1965-08-24
Abstract: 1,149,243. Peracetic acid; acetic acid. COURTAULDS Ltd. 23 Aug., 1966 [24 Aug., 1965], No. 36229/65. Heading C2C. [Also in Division B1] Peracetic acid (together with acetic acid) i<SP>S</SP> obtained by continuously injecting oxygen and acetaldehyde vapour into an endless path round which the reaction mixture is circulated and from which the products are removed downstream of the injected oxygen. The temperature is maintained at 120-220 C. by removal of the reaction heat and the residence time is 5-30 sees., during which the circulating gases preferably complete 10-40 cycles of the path. The reaction is performed either in the presence of a diluent (permanent gases, solvent vapours, e.g. the acetone containing acetaldehyde used in recovering the peracetic acid) or of an excess of acetaldehyde vapour, and the surfaces contacting the reaction mixture are of aluminium. As shown in the Figure, acetaldehyde is injected into the closed path 5, 6 at 13 and oxygen at 14; heat exchangers 1, 2 remove the heat, fan 11 drives the gases and products are removed at 15. In the examples, the product comprises about 1 part acetic acid and 3 parts peracetic acid.
Patent GB-939340-A (GB)
Title: Improvements in or relating to bearing arrangements
Inventor: MACPHERSON GORDON
IPC: H02K5/167
Filed: 1960-10-21
Abstract: 939,340. Bearings. RANCO Inc. Jan. 19, 1962 [Oct. 21, 1960], No. 36253/60. Class 12 (1). In a bearing arrangement for a rotary shaft 12, the shaft is carried at each end in a spherical bearing 13 mounted in a recess 14 of a frame 11 and retained therein by a bearing-cap 15 having a pair of teeth 22 which extend inwardly therefrom to engage the spherical bearing and thus prevent rotation but permit limited alignment thereof. The bearing cap is formed from a strip of phosphorbronze plate; has an arcuate portion 20 with a rectangularlyshaped aperture 21 therein, each end of the aperture 21 being formed with the teeth 22 which bite into the bearing 13; and is held to the frame 11 by screws 17. The spherical bearing 13 is of porous bronze and has been soaked in oil.
Patent GB-1015371-A (GB)
IPC: B60P1/28
Filed: 1962-09-25
Abstract: 1,015,371. Toggle clamps. METZELER A.G. CO. Sept. 25, 1962 [Sept. 29, 1961], No. 36333/62. Heading E2B. [Also in Division B7] A catch for securing the tipping body 7 of a tipper vehicle to the vehicle chassis consists of a cranked lever 3 and a rubber stop 6a secured thereto, movement of the tipping body itself being used to swing the lever through a dead-centre position between its stable locking (broken lines) and unlocking (full lines) positions. The arm 3a of lever 3 is pivoted at 11 to one end of an elongate member whose other end is pivoted at 2 to a fixed bracket 1 on the vehicle chassis. The lever 3 is itself also pivoted to this bracket at 5. The lever is clad in rubber 6, part of which forms the stop 6a, the rubber being faced with metal at its ends 8 and 9 and the metal facings being surmounted by a housing 10 which encloses one end of the composite lever.
Patent GB-846158-A (GB)
Title: Improvements relating to transmission belt fasteners
IPC: F16G3/02
Filed: 1957-11-21
Abstract: 846,158. Belt fastenings. HISCOCK, R. S., and HISCOCK, F. R. Aug. 18, 1958 [Nov. 21, 1957], No. 36344/57. Class 80 (1). In a belt fastening comprising a hinge-pin, interconnecting two interlaced strip-metal halves formed with prongs clinched into the belt ends, wherein each fastener half comprises a metallic strip which is mutilated to provide two or more rows of staggered prongs A, B, connected by a continuous bar C, and is bent to a V-section to provide a row of hinge eye elements D, the strip is also formed with a row of lugs E serving to locate a fitting or gauge-pin G. The pin G is used during the clinching operation to straighten the strip and prevent deformation of the eyes D. The lugs E may be such that the pin G is held frictionally in the fastener half. As shown, the lugs are so positioned that they locate the belt end. Alternatively they may be so positioned that the belt end is located by the fitting-pin G. It is stated that lugs may project from the edges of one or both rows of prongs. The bar C is scored with weakening lines H to facilitate breaking off a required length of strip.
Patent GB-954899-A (GB)
Title: Improvements relating to heat exchangers
Inventor: DICKSON RONALD
IPC: F28D7/08
Filed: 1960-10-25
Abstract: 954,899. Tubular heat exchangers. MARSTON EXCELSIOR Ltd. Oct. 25, 1961 [Oct. 25, 1960], No. 36644/60. Heading F4S. A heat exchanger comprises sinuous tubes, each of which has straight parallel portions lying in a common plane, and joined together by U-bends, these tubes being arranged in a nest in the common plane with the first straight parallel portions laid side-by-side in order, followed by the second portions in order, and so on, the U-bends being sufficiently offset from the plane of the parallel portions to accommodate overlapping of the bends. As shown, Fig. 2, the space between successive parallel portions of any tube, e.g. 4, is an exact multiple of the tube outer diameter, this space being filled by other tubes 5, 6, so that successive tubes are contiguous over substantially their whole length. Fig. 1a shows the offset positions of the U-bends to allow overlapping. The tubes in one nest are connected in parallel between headers 12 and 13, and a number of nests may be arranged one above the other in parallel planes served by common headers. Between each pair of nests is sandwiched a pair of corrugated plates 9 with a dividing plate 10 between them, to form paths for the second heat exchange fluid, the whole assembly being secured totogether by dip-brazing within a frame 11.
Patent GB-875257-A (GB)
Title: Improvements in or relating to straight pull breech mechanisms for fire arms
IPC: F41A3/46
Filed: 1957-11-25
Abstract: 875,257. Automatic firearms. MAUSERWERKE A. G. Nov. 25, 1957 [Nov. 24, 1956], No. 36714/57. Class 92. Relates to fixed-barrel automatic guns in which the opening of the breech by blow-back action is temporarily delayed by locking means until the pressure has fallen in the barrel. According to the invention the gun has a three-part breech block assembly comprising front and rear parts which are connected so as to permit limited relative longitudinal movement, the front part being adapted to close the breech and to be locked thereto temporarily, in which position the rear part abuts the front part. The breech block assembly also comprises a control member supported in a bore in the rear part and slidable within the front part to effect the locking and unlocking thereof and a spring-urged inertia member is mounted in the rear part for displacement forwardly thereof into a position for delaying rearward movement of the control member after breech closure. Spring means are provided to urge the breech block assembly to the closed and locked position. In one form, in a hammefired firearm, the breech block assembly comprises front and rear portions 20, 12 Fig. 2 and a the tool, a spring 8 on the movable section to return it to the normal position, a slot 10 for the muzzle in the movable section and a cam slot 14 which maintains the slot covered with assistance from the spring. In the construction shown in Fig. 1 the section 2 slides in channels 6 of guides 7 which house the springs 8. In that in Fig. 4 the section 2 slides in grooves in the ram 16 of the section 1 operating against a lock spring 19. In both constructions the cover 11 which carries the slot 10 is pivoted at 12.