baber/WOPTO huggingface dataset:
Patent GB-1517566-A (GB)
Title: Multipoint data communication system
IPC: G06F13/00
Filed: 1975-10-27
Abstract: 1517566 Data transmission; common channel systems XEROX CORP 27 Oct 1975 [31 March 1975] 44096/75 Heading H4P In a data communication system having a plurality of transceivers utilising a common channel interference with signals already on a channel is avoided by comparing each receiver input with the associated transmitter output so that if there is a discrepancy (i.e. if there is another station transmitting), the transmitter is muted. The arrangement is applied to a message packet system. Simultaneous restart of two transmitters is avoided by delaying the restart for a time dependent upon a random number generator having a mean value weighted according to the number of data bit collisions occurring during a packet. The network may comprise one or more channels, e.g. terminated coaxial cable, connected to a plurality of stations which may include a computer, memory or input/output terminal. Transmitter 301 and receiver 302, have connected thereacross a monitor 113 which gates a counter 455 controlling a weighting circuit 453 receiving an output from a continuously driven counter/oscillator combination 451, 453 being connected to enable transmitter 117. Station 125 may include a microprocessor, and station 126 a computer this being able to perform weighting etc. functions hence components 451, 453, 455 are omitted and conductors c, r, are rerouted. Channel 10 may be connected to other channels 20 for example through a repeater 50 incorporating transceivers 211, 212, channel 20 having remote control 227 and auxiliary memory 228 connected thereto. As transmissions are by message "packets"each device transmits at its own rate which may be different from other device rates, differences in such rates being buffered by interface stages incorporated at each station. The comparing circuit Fig. 2 (not shown) includes an exclusive OR (308) having a delay (307) matched to delays in 301, 302 in one input whereby OR (307) inputs will be approximately identical with no data present other than from the respective station. With other data present lead c gives a 1 which is clocked into a register (455). An 8 stage counter (461) operated continually by a clock (462) having a rate faster than and unsynchronized with any other clock in the system, is connected to a corresponding number of AND gates (464) also receiving inputs from (465); this is clocked accumulatively each time interference occurs between incoming and outgoing data. Gates (464) are connected to up/down counter (467) enabled by signal c and clocked to zero by a restart clock (468) after which retransmission is initiated. The most significant bit (e) from (465) indicates an abnormal condition when appropriate. Fig. 5 (not shown) gives a suitable transistor circuit for the transceiver which incorporates a line isolating transformer feeding a transistor circuit incorporating protective diode (563) and cable protection circuit (600). Parity or other error checking arrangements may be incorporated in the packets and use of other codes e.g. Manchester, NRZ etc. is contemplated.
Patent GB-1130933-A (GB)
Title: Electrotherapeutic treatment head
IPC: A61N1/06
Filed: 1966-10-03
Abstract: 1,130,933. Treatment head for electrotherapy. L. B. SMITH. 3 Oct., 1966 [11 Oct., 1965; 29 April, 1966], No 44121/66. Heading A5R. A treatment head for applying electromagnetic energy comprises a hollow housing 18 in which is supported a radiating member 20 and a primary coil 28 supplying energy to the member 20 from an electrotherapeutic supply, the primary coil being flat, loop-shaped and parallel to the radiating member 20, and the member 20 being formed as a spiral in one plane and flat, the width of at least part of the member 20 being greater than half the pitch of the spiral. As shown, the treatment head includes dielectric laminates 52, 54 supporting the radiating member and the primary coil in the housing, leads 34, 36 connecting the primary coil to an electric pulse circuit having a frequency of 27 Mc/s., and a tuning condenser connected across the radiating member 20. The housing may be of metal with a dielectric cover 22 and the radiating member 20 is also of metal and may be formed by painting, spraying, or printing, on the surface of the dielectric 52. The tuning condenser 38 may be positioned outside the housing 18 and the separation between the member 20 and the primary coil may be adjustable. In an alternative embodiment (Figure 7, not shown), the member 20 and the primary coil 28 are arranged on the opposite surfaces of a single dielectric (64) and a shield (66) is provided between the dielectric and the condenser. The member 20 may be in the form of an oblong spiral (Figure 8, not shown) and the width of the spiral may vary from the centre of the spiral out towards its periphery (Figures 6, 12, not shown), As in Figures 9, 10, 11, 15, and 16 (not shown), the member 20 may be secured to plastics supporting members (70) which are shaped to radiate from the centre of the spiral, the member 20 being held to the supporting members by plastics webs (68) interwoven with the coils of the spiral. Bolt heads provide protuberances on the member 20.
Patent GB-892204-A (GB)
Title: A lock for cycle tyre inflators
Inventor: PURDEN ROBERT HESKETH
IPC: B62J11/02
Filed: 1959-12-30
Abstract: 892,204. Releasable fastenings; locks. LUCAS (INDUSTRIES) Ltd., JOSEPH. Dec. 22, 1960 [Dec. 30, 1959], No. 44202/59. Class 44. A lock for hindering the removal of a cycle tyre inflator from a position in which it is supported between two lugs on the frame of a bicycle comprises a split collar 15 which engages the barrel of the inflator adjacent its handle, a clamping screw 16 with a rotatable nut 20 which is disposed within a housing 19 fastened to the collar at one end and open at the other, and a disc 21 fixed within the open end of the housing and having an aperture with recesses 22 to allow a tool having a shape complementary to that of the aperture in the disc to pass therethrough in order to engage the nut to turn it The housing and the tool may be formed from a synthetic resin material.
Patent GB-1116304-A (GB)
Title: Improvements in or relating to dioxaborinane compounds
IPC: C07F5/02
Filed: 1966-10-04
Abstract: Diborane is produced as a by-product of the reaction between a compound of formula <FORM:1116304/C1/1> wherein R is H or C1-5 alkyl at least one R being alkyl and X is Cl or Br and a hydride, e.g. sodium or potassium borohydride, lithium aluminium hydride, sodium hydride or sodium trimethoxy borohydride.ALSO:The invention comprises compounds of formula <FORM:1116304/C2/1> wherein R is H or C1- 5 alkyl, at least one of the R groups being alkyl.  They are prepared by reacting a hydride with a compound of formula <FORM:1116304/C2/2> wherein X is a chlorine or bromine atom.  Suitable hydrides are sodium or potassium borohydride, lithium aluminium hydride, sodium hydride and sodium trimethoxy borohydride. Compounds of Formula (II) may be prepared by reaction of the corresponding polyglycol diborate with a halogenating agent e.g. boron trichloride or tribromide.
Patent GB-1131887-A (GB)
Title: Process for shirring artificial sausage casings
IPC: B29C49/00
Filed: 1967-09-29
Abstract: 1,131,887. Shirring sausage casings. KALLE A.G. 29 Sept., 1967 [1 Oct., 1966], No. 44390/67. Heading A2B. In the shirring of artificial sausage casings wherein one end of the casing is passed over a mandrel to a stop and the casing is subjected to internal gas pressure during advancement of the casing on the mandrel towards the stop with concomitant compression and creasing of the casing against the stop, the mandrel is subjected to a continuous rotary motion about its axis whilst the casing is advanced substantially along its axis.
Patent GB-968616-A (GB)
Title: Feeler microscope for measuring machine
IPC: G01B5/00
Filed: 1961-12-13
Abstract: 968,616. Optical gauges. SOC GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Dec. 13, 1961 [Dec. 14, 1960], No. 44599/61. Heading G1M. [Also in Division G2] A feeler microscope has pulley-wheels 26, 27, held against rotation by a variable tension spiral spring 23 to counterbalance, to a desired degree, the weight of a vertically movable cable-suspended carriage 31 carrying the feeler 19. To allow rotation of the microscope head, the suspension includes a pair of interlocking rings 28,29 relatively rotatable on ball bearings (see Fig. 3). A reticule 41 fixed to the carriage is viewed by an objective 18, fast with the body 17 of the microscope, via a prism 42. The coincidence of a given marking on the vertical scale with the fiducial mark of a reticule in the objective system, by adjustment of the carriage position using the control knob 22, corresponds to a predetermined contact pressure of the feeler 19. A stop-screw 33 limits the range of carriage movement. The feelers are interchange- 'able and for measurements in the vertical direction, a feeler is used having a long stem 35 held against transverse movement by a fixed and a resiliently-mounted pin 44, 45. For measurements in the horizontal direction, a short-stemmed feeler is used which does not engage with pins 44 and 45. The part 37 of the carriage 31 in which the feeler is mounted, and which carries the reticule 41 (mounted on an arm 40), is horizontally displaceable on strip springs 38, 39 (Fig. 7), and a given displacement, corresponding to a desired contact pressure is indicated by the coincidence of an appropriate marking on a horizontal scale of the reticule 41 with the fiducial mark in the objective reticule. The microscope may be mounted on a table with orthogonal power-operated slides, and the scales may be viewed on respective panels by optical projection. Object illumination is by means of a lamp 14 (Fig. 4) and a semi-transparent mirror 21.
Patent GB-1011790-A (GB)
Title: Pivotable cover closure, for fireboxes
IPC: F23M7/00
Filed: 1964-11-02
Abstract: 1,011,790. Pressure resisting doors. G. OSPELT. Nov. 2, 1964, No. 44648/64. Heading F2P. [Also in Division F4] A door for an oil-fired boiler mounted on pins 9, 10 on plates 7, 8 hinged to the door frame and clamped against the frame by nuts 13, 14, has two spaced sealing rings 22, Fig. 2, mounted in grooves 21 on the inner face of the door and a conduit 24 connected to the blower supplying air to the burner opening into the space between the rings 22.
Patent GB-1364567-A (GB)
Title: Sealing means for the gap between the opening in the fuselage  and the wing of aircraft
IPC: B64C3/40
Filed: 1971-09-27
Abstract: 1364567 Seal for aircraft wing root UNIROYAL AG 27 Sept 1971 [2 Oct 1970] 44885/71 Headings B7G and B7W A seal for filling the space between an aircraft fuselage and a wing movable relative thereto, comprises a base-plate 7 to which a plurality of elastic airtight sealing cells 13 are attached and feed means supplying compressed air to the cells, each cell having opposite sidewalls 20, 21 of triangular shape, the bottom apex of which is flattened in use as shown at 18a, and endwalls 14, 22 extending between the sidewalls. The base-plate 7 is secured by rivets 26, 28 to flanges 23, 24 of the cells, adjacent flanges 23 of adjacent cells overlapping and spacing the respective sidewalk 20, 21 near the baseplate 7 which is formed with apertures 9 communicating the cells 13 with a common channel 10 formed with a conduit 12 adapted to be connected to a source of compressed air to inflate the cells. In use the area 19 of each sidewall contacts a corresponding area of a neighbouring cell. Several or all sealing cells 13 share a jacket 34a secured together with the cells by rivets 28a and a bar 30 to the base-plate 7. In use the endwalls 14 of the cells 13 form a continuation of the surface of an aircraft fuselage and the apex is flattened by a wing 2 which has variable pitch and sweep. The internal surface of each endwall 14 may be reinforced to increase its stiffness. In case of leakage from an individual cell valves are provided which maintain pressure in the remaining cells.
Patent GB-1108895-A (GB)
Title: Improvements in hot plates
IPC: A47J39/02
Filed: 1966-10-07
Abstract: 1,108,895. Burners. APPLICATION DES GAZ. 7 Oct., 1966 [7 Oct., 1965; 30 Sept., 1966], No. 44960/66. Heading F4T. [Also in Division A4] A burner comprises a bell-shaped member 11, to which a fuel container, 13, is removably secured and a control tap (14) incorporating a pressure control valve (15) linked by a shaft (16) to a control knob 17, is arranged on a crosspiece 9 so as to feed two tubes 28, which extend in opposite directions, each tube supplying a burner 29 directed vertically upwards below a casing 7. Incorporated in the tap (14) is a pressure controller, D, comprising an adjusting screw (201) bearing on a seat of porous material (25) such as felt or synthetic foam.
Patent GB-1153350-A (GB)
Title: Unloading Mechanism for a Storage Structure.
IPC: A01F25/20
Filed: 1966-10-07
Abstract: 1,153,350. Silo unloaders; endless conveyers. A.O. SMITH HARVESTORE PRODUCTS Inc. 7 Oct., 1966 [24 Oct., 1965], No. 44997/66. Headings B8A and B8E. [Also in Division F1] A silo bottom unloader is driven by hydraulic power means. An arm 4 having a cutter chain 6 is rotably mounted on a central shaft 5 and dislodges and conveys material to a trough 7 for extraction by a conveyer 8. The shaft 5 is driven by a rack 26, Fig. 5, moved by a piston 27 in cylinders 28, 29 through a clutch 17-22. The arrangement is such that another cylinder 31 moves a clutch collar 17 either to engage a clutch half 19 with a member 22 driven by the rack 26 to drive the arm a small arc during actuation of the rack in one direction or to engage an upper clutch half 18 to a lock member 21 to hold the shaft 5 against backward movement on the return of the rack 26. The conveyer 8 is driven by an hydraulic motor 45 which automatically runs at a slower speed as the load increases. The chain 35 of the conveyer 8 engages a sprocket 34 on a sleeve 13 which has a second sprocket 12 to drive the chain 6.
Patent GB-1165221-A (GB)
Title: Choke Control Mechanism for a Carburetor
IPC: F02M1/10
Filed: 1966-10-10
Abstract: 1,165,221. Spray carburetters. BENDIX CORP. Oct. 10, 1966 [Oct.22, 1965], No.45241/66. Heading F1B. A choke valve 42 is controlled by a U-shaped bi-metallic element 46 having a part-circular portion 54 adapted to contact the exhaust pipe 22. The arm 50 of element 46 is clamped at 62 to a plate 60 and the free arm 48 is connected to a rod 56 actuating the choke control arm 44, the upper end 71 of rod 56 being guided in a slot 70 of plate 60. A rod 74 connects the throttle control lever 72 to lever 44 through a lost-motion connector 78 so that when the throttle valve is in the idling position, the rod 74 opens the choke valve slightly.
Patent GB-1203616-A (GB)
Title: An improved roller squeegee
Inventor: STOCKING JOHN LAWRENCE
IPC: H04Q3/00
Filed: 1967-10-05
Abstract: 1,203,616. Pressing-out water from webs. EASTMAN KODAK CO. 5 Oct., 1967 [13 Oct., 1966], No. 45497/67. Heading F4G. [Also in Division D1] A two-roller squeegee for removing liquid from a wet web, particularly photographic film, comprises a lower rubber-covered metal roller 11 preferably hollow, removably journalled in fixed bearings 12, and a similar upper roller, preferably solid, removably journalled in floating bearings 21. The lower roller has a relatively large length to diameter ratio and such a section-modulus to weight ratio that it has definite downward sag. The upper roller has a smaller section-modulus to weight ratio so that it can sag downwards more than the lower roller and is supported by the lower roller so as to assure uniformity of contact along the horizontal nip. The outer diameters of the rollers are approximately equal and less than 2 inches and the nip is preferably 45 inches long, e.g. to take a 42 inch photographic film. The upper roller is preferably twice as heavy as the lower roller. The rubber covering on the upper roller may be softer than that on the lower roller, to prevent a bead of liquid being formed on the trailing edge of a web leaving the nip.
Patent GB-950906-A (GB)
Title: Phototropic glass and article made therefrom
IPC: G02B5/23
Filed: 1961-12-22
Abstract: Phototropic glasses (i.e. transmittance varies reversibly with intensity of incident actinic radiation) comprises 0.005% to 0.10% by volume silver halide (chloride, bromide, or iodide) crystals encased in silicate glass.  The composition of the base glass is preferably 40-76% SiO2, 4-26% Al2O3, 4-26% B2O3, at least one alkali-metal oxide selected from 2-8% Si2O, 4-15% Na2O, 6-20% K2O, 8-25% Rb2O3, 10-30% Cs2O, a total not exceeding 15% of divalent metal oxide selected from 0-4% MgO, 0-6% CaO, 0-7% SrO, 0-8% BaO, 0-8% ZnO, 0-10% PbO, small amounts of F and P2O5 may be present. Silver halide crystals, are formed by incorporating the desired constituent in the base glass composition, and precipitating the crystals "in situ" either during the cooling of the melt or by a re-heating treatment in which the glass is maintained at a temperature between the strain point and softening point, for a certain period.  Silver is added to the batch as a halide, or other salt e.g. nitrate, in an amount sufficient to yield from 0.2-1.5% silver in the glass, and a stoichiometric equivalent of the desired halide is also added (e.g. for 0.2% Ag, 0.07 Cl, 0.15 Br, or 0.24 I, are added individually or 0.002 mols. of a mixture of halides if desired).  The phototropic properties are improved by the inclusion in the halide crystals of metallic silver which may be formed "in situ," by controlling the Ag/halogen ratio, or by the addition (where the upper limits of Ag and halogen are used) of reducing agents selected from 0.002-0.02% FeO, 0.002-0.10% SnO, 0.01-0.1% CuO, 0.04-0.4% As2O3 and 0.1-1.0% Sb2O3.  The glass batch constituents are melted in a non-reducing atmosphere and formed into articles by conventional means, which may be subjected to the special heat treatment.  The glass may be transparent, opal or coloured depending on the amounts of silver halide in the glass.  In preparing the batch allowance is made for loss of halogen and silver halide by volatilization.  The silver halide crystals may also be introduced into the glassy matrix by applying to the surface of a glass containing halide ions, a finely divided material containing silver or a compound of silver and heating the article whereby the silver ions react with the halide ions to produce silver halide crystals encased in silicate glass.
Patent GB-1370645-A (GB)
Title: Lightweight composite structures
IPC: E04C3/04
Filed: 1971-10-04
Abstract: 1370645 Interconnecting beams R VINCENS 4 Oct 1971 [2 Oct 1970] 46154/71 Heading F2M [Also in Division E1] Structures such as building partitions, Figs. 48-53 (not shown), false ceilings, Fig. 57 (not shown), shelving, Figs. 54-55, 58-59 (not shown), are assembled from interengageable, composite metal or plastics joists which include at least one main joist 1 comprising two external sheaths 3, 4 each having flanges 5, 6 facing each other and surrounding a plurality of longitudinally spaced, slidable first struts (e.g. 51, Fig. 15) which resiliently grip the flanges 5, 6 to define a longitudinal slot 21, Fig. 11, of constant width between the flanges and to define a housing 36 behind each slot. A projection of a further joist may be inserted into the slot 21 and retentively engaged by retaining devices on the first struts to thereby orthogonally connect the joists. A secondary joist 2, Fig. 11, comprises facing flanged sheaths 65, 66, the flanges being angled to enter the slot 21 in the main joist and having a hooked member 71 arranged as shown to engage in the main joist 1. The first struts may comprise a variety of solid or tubular cores having C-sectioned members engaging the sheath's flanges 5, 6 (e.g. Figs. 2, 5 (not shown)); four C-sectioned members 37-41, Fig. 7, welded together; or two top-hat sectioned members 51 arranged with their webs 52 back to back and interconnected by hooks 56. Two main joists may be connected orthogonally by an angle member 95, Fig. 18, received between the webs 52 of the struts 51 and retained therein either by projections 58 on the webs 52 engaging holes 57 in the member 95 or the angle member may have side flanges complementary to those of the struts 51, Figs. 26-31 (not shown). The angle member 95 may have hooked teeth 16 on one limb which extend beyond one end of the joist and orthogonally attach it to a further joist, Fig. 36, by engaging holes 117 in the web 52 of a strut 51, the teeth being retained by a member 146 engaging in the hooks of the teeth. A further orthogonal connection, Fig. 40, may be made by an angled member 118 having one limb received in a first joist and the other limb having recesses 122 locked between the struts of a second joist by engaging members-55. Still further connections may be made by X, L or T shaped members, e.g. Fig. 35, having crosssections complementary to those of the struts and engaged therein. A ariety of clips, e.g. 155, Fig. 36, for engaging and supporting panels or acting as guides for sliding doors are disclosed. Channel shaped trim members, e.g. 75, 81, Fig. 11; 100, Fig. 36, may conceal any fastenings.
Patent GB-1362829-A (GB)
Title: Lime and silica-rich high-alumina cement
IPC: C04B7/32
Filed: 1971-10-05
Abstract: 1362829 Alumina cement CIMENTS LAFARGE 5 Oct 1971 [9 Nov 1970] 46268/71 Heading C1H A lime and silica rich high alumina cement has the oxide analysis: 8-10% SiO2, 1-2% TiO2, 26-29% Al2O3, 14-16% Fe2O3, 0% or traces FeO and 45-48% CaO, and comprises CA, C2S, C12A7 and ferrites (also C2AS and C6A4S in examples). The cement may be made by crushing together a siliceous bauxite and a limestone to form a mixture having the following oxide analysis SiO2 6-8%, TiO2 1-2%, Al2O3 18 to 20%, Fe2O3 8-11%, CaO 30-34%, MgO 0 or traces, fusing the mixture in an oxidizing atmosphere containing O2 at 1400 C.-1500 C. cooling at between 250 C. to 1400 C./hour and grinding to Blaine specific surface of 2500 to 3500 cm.<2>/g. Lithium carbonate and calcium borate may be added to the cement.