baber/WOPTO huggingface dataset:
Patent GB-1095975-A (GB)
Title: Improvements in or relating to horseshoes
IPC: A01L1/04
Filed: 1965-10-12
Abstract: 1,095,975. Horse shoes. D. FERGUSON. Oct. 12, 1965 [Oct. 16, 1964], No. 43152/65. Heading A1M. A racing horeshoe comprises a metal casting or forging 10 having a hoof-engaging surface which is provided with a recess or number of recesses in which is located resilient material 19. The shoe has a flange 11 extending round the perimeter of the ground engaging surface and the recesses are formed by inner and outer flanges 15, 16 connected by ribs 17. In a modification a hollow sheet metal stamping having a steep outer wall, has the entire internal cavity filled with resilient material.
Patent GB-1482703-A (GB)
Title: Imaging member
IPC: G03G16/00
Filed: 1974-10-07
Abstract: 1482703 Electro-photographic members XEROX CORP 7 Oct 1974 [11 Oct 1973] 43399/74 Heading G2F A member for producing reversible frost images comprised (i) a photo-conductive layer, (ii) an insulating elastomeric layer with a resistivity greater than 10<SP>13</SP> ohm-om, or these two layers being combined as a single layer and (iii) a flexible metallic layer of Ti and Ag applied together and sequentially to build up a multilayer. Normally the member has a conductive support to which the photo-conductive layer is applied and an electric field is applied across the conductive support and Ti/Ag layer whilst imagewise exposing the member to produce the first image. The elastomer is preferably a silicone resin and the photo-conductor may be Se, ZnO, S, CdS, CdSe, Te, or polyacryl carbazole. There may be a screen between support and photo-conductive layer to produce line images or there may be an oil layer over the Ti/Ag layer which protects the metallic layer. Alternatively, there may be three elastomeric layers decreasing in thickness from the photo-conductive layer to the metallic layer to increase the response of the member. Gold and/or indian may be added to the Ti/Ag layer to enhance reflectivity. The reversible process is as described in U.S.A. Specifications 43716359 and 1352157-9.
Patent GB-1022449-A (GB)
Title: Modified paper for photography
IPC: G03C1/81
Filed: 1962-10-12
Abstract: Paper is treated with chloral hydrate to the extent of 5 to 10 grams per square metre.ALSO:The curling of paper when its water content changes is reduced by incorporating in the paper from 5 to 10 grams per square metre of chloral hydrate.  A solution of this material may be applied to the paper, or the paper may be immersed in it.ALSO:Paper having a content of from 5-10 grams per square metre of chloral hydrate is coated with a layer consisting of or comprising gelatin or polyvinyl alcohol.  This coating may be of photographic material (see Division G2).  An underlayer of gelatin and white pigment, e.g. baryta, may be provided between the base and the photographic coating.  The treatment with chloral hydrate reduces the tendency of the paper to curl with changes in its water content.
Patent GB-1087540-A (GB)
Title: Improvements in or relating to nozzles
IPC: F23D14/28
Filed: 1966-09-29
Abstract: 1,087,540. Burners. E. M. KOMMER. Sept. 29, 1966 [Sept. 30, 1965], No. 43643/66. Heading F4T. [Also in Division F2] A burner nozzle device 1 for connection to an aerosol container 2 containing a liquefied fuel such as butane and provided with a check valve 4 has a connector 5 with a flange 8 to seat on the container rim and a burner tube 6 with nozzle 7, the burner tube 6 being threadedly engaged with a collar portion 11 of connector 5 so that by screwing down the tube 6 a cup member 13 in the bottom end of the tube is caused to engage the stem of valve 4 to open it the desired amount to control the burner flame. In a modification the burner tube is connnected to the container by means of a union so that although the tube can be moved axially it is not rotated.
Patent GB-1115169-A (GB)
Title: Electronic timer
IPC: H03K17/292
Filed: 1966-09-30
Abstract: 1,115,169. Electronic line delay relays. MALLORY TIMERS Ltd. 30 Sept., 1966 [30 Sept., 1965], No. 43752/66. Heading H3T. A time delay circuit comprises a relay having two windings connected in series opposition across a supply and an electronic time delay switch connected across one of the windings. On switching on, the current through oppositely arranged windings 13, 14 is such that there is substantially no flux and the relay is unoperated. Capacitor 18 charges at a rate determined by the setting of a potentiometer 23 and after a delay, the unijunction transistor conducts, firing thyristor 21 so that one winding is bypassed and the relay operates.
Patent GB-1247283-A (GB)
Title: A method and device for doffing and straightening fibres
Inventor: CHRTEK MILAN
IPC: D01H4/32
Filed: 1969-09-04
Abstract: 1,247,283. Opening fibres for open end spinning machines. VYZKUMNY USTAV BAVLNARSKY. 4 Sept., 1969 [13 Dec., 1968], No. 43763/69. Headings DID and D1N. Fibres 5 passing from a combing out roller 2 to a spinning chamber 6 via a channel 4 change direction about an acute angle at the point 14 on entering the channel. The surface of combing out roller 2 projecting into channel 4 is arranged to move oppositely to the air stream in channel 4 which is produced either by the reduced pressure in chamber 6 or by high pressure at opening 41. The distance B from the edge 14 to the slip wall 61 is at least equal to the average staple length of the fibres.
Patent GB-1375197-A (GB)
Inventor: MCLEOD GORDON DONALD
IPC: C07F7/08
Filed: 1971-09-21
Abstract: 1375197 Coatings G D McLEOD 21 Sept 1971 [24 Sept 1970 18 Jan 1971] 43953/71 Heading B2E [Also in Division C3] Coating compositions comprise a filler and a binder which is a liquid ester-interchange product of an organic silicate and a di- or trihydric alcohol. The filler may be, e.g. zinc dust (for ferrous surfaces) and/or SiO 2 , Fe 2 O 3  or an oxide or silicate of Al, Zr, Zn, Mg, Cr or Ti (to give a ceramic coating). In Example 24 tabular alumina is mixed with a product from ethylene glycol and 'ethyl silicate condensed' in MEK and a trace of fume silica; the paint is applied to a mullite furnace lining, a clay crucible interior and a zinc/silicate primed steel sheet.
Patent GB-1132506-A (GB)
Title: Unloading device for reciprocating compressors
IPC: F04B49/24
Filed: 1966-10-03
Abstract: 1,132,506. Valves. WORTHINGTON CORP. 3 Oct., 1966 [2 Nov., 1965], No. 43984/66. Heading F2V. [Also in Division F1] A reciprocating piston compressor has at least one cylinder 26d closed by a valve plate 42d having inlet ports 48d controlled by an automatic suction valve provided with openings therethrough, whereby operation of a solenoid 76d shifts a rod 84d to cause the openings in the suction valve to align with the inlet ports 48d and thus unload the compressor. As shown, the inlet valve is in the form of a flexible strip movable by the rod 84d in grooves 144 and having a single central row of openings so that during normal operation the material on either side thereof each controls a separate row of inlet ports 48d. In a modification, Figs. 3 and 9 (not shown), the inlet valve is of annular form and has a number of circumferentially spaced openings normally alternating with similarly spaced inlet ports but rotatable by the rod 84d into alignment therewith. The openings may be circular or elongated holes or cut-outs, Fig. 8 (not shown), extending from the inside edge of the annular valve.
Patent GB-1008712-A (GB)
Title: Improvements in or relating to nuclear power plant
Inventor: TAYLOR ANTHONY JAMES
IPC: F22B1/18
Filed: 1960-12-22
Abstract: 1,008,712. Nuclear power plant. BABCOCK & WILCOX Ltd. Dec. 20, 1961 [Dec. 22, 1960; March 8, 1961], Nos. 44018/60 and 8461/61. Heading G6C. In a nuclear power plant the reactor coolant gas generates superheated steam in an external heat exchanger. Power variations at the reactor are compensated for by control of bypass ducts associated with sections of the heat exchanger. In addition, with a reactor having a positive temperature coefficient of reactivity, the reactor temperature is raised at shut-down, by an adjustment of the by-pass duct valves. The reactor thus operates at a low value of reaction flux and the Xenon poisoning is reduced. During normal operation of the power plant, the diffuser 17 admits coolant gas into the pressure vessel 3, and the coolant flows in heat exchange relationship with the horizontal tube banks 2a, 2b, 2c, 2d, 2e. The first four tube banks generate steam for high and low pressure boilers, while the fifth is an economizer tube bank serving both boilers. The hot coolant is drawn into the cylindrical duct 28 by a circulator 4 which is an axial flow blower disposed with upright axis within an extension 26 of the pressure vessel, the lower part of which is removable. The impeller 27 delivers the coolant to the horizontal branch 30 which passes the coolant through a valve to the reactor (Fig. 1, not shown). During shutdown the reactor is operated with a fractional value of the normal neutron flux to reduce the Xenon poison content, and at this time the reactor has a positive temperature coefficient of reactivity. The reactivity is raised, to offset the Xenon poisoning, by raising the reactor temperature by opening the by-pass valves 21 so that some coolant flows through the tubes 12, the control rods move automatically according to the proportion of coolant mass flowing through the reactor, so that the reactor heat output is suited to the coolant mass flow through the reactor. To enable the coolant mass flow in the reactor to be varied, some of the coolant in the horizontal branch 30 is bypassed through the ducts 42 and 45 to the cylindrical casing 44 which contains a valve 45 and also an additional valve. The valve 45, controlled by shaft 49, allows a selected amount of coolant to circulate up vertical coolant passages 52 (Fig. 3) and 54 (Fig. 2), enter the space 61, and flow over the economizer tubes 2e to the space 25, and then back into the circulator 4. The additional valve, controlled by shaft 64, delivers the coolant directly into the space 25, so describing a path of low flow resistance between the outlet and inlet of the blower and reducing the pressure difference at which the blower would have to operate. These two valves are balanced valves and may be connected for simultaneous operation. Specification 902,182 is referred to.
Patent GB-1455059-A (GB)
Title: Harvest control unit in an ice-making machine
IPC: F25C1/06
Filed: 1974-10-11
Abstract: 1455059 Ice-making INTERNATIONAL REFRIGERATION ENGS 11 Oct 1974 [11 Oct 1973] 44180/74 Heading F4H An ice-making machine is provided with a pump 20 for circulating water through an icemaking tube 16 and a reservoir 68, and harvesting of the ice formed in the tube 16 is initiated by a float switch 44, associated with a tank 52 connected to the reservoir 68, when the level of water in the reservoir 68 falls as a result of a reduction in the flow of water through the tube 16 on build-up of ice therein. As shown, the tube 16 is surrounded by a jacket 18 constituting the evaporator 14 of a refrigeration circuit which includes a compressor 30, a condenser 26 and a selector valve 34 controlled by the float switch 44. During freezing, water from the tube 16 passes into the reservoir 68 which is connected by a manifold housing 66 to the tank 52 containing the float 48 of the float switch 44. The manifold also has a metering outlet 82 through which water passes to a tank 86 connected to the inlet of the pump 20. As ice builds up in the tube 16, the flow of water therethrough reduces until it is less than that through the metering outlet 82 so that the water level in the reservoir 68 and tank 52 falls and operates the float switch 44, thereby causing the selector valve 34 to divert the compressor output directly to the evaporator 14, by-passing the condenser 26. The warm refrigerant releases the ice from the walls of the tube 16 and the back pressure in the line 22 between the pump 20 and the tube 16 ejects ice from the tube 16, the ice being broken as it passes around bends in the tube. A wire is mounted across the orifice 70 between the manifold 66 and the reservoir 68 to prevent the passage of ice.
Patent GB-1246647-A (GB)
Title: Hydraulic motor
IPC: F28F19/00
Filed: 1968-09-18
Abstract: 1,246,647. Hydraulic motor. RIVA CALZONI S.p.A. Sept.18, 1968 [Sept.29, 1967], No.44430/68. Heading F1A. A hydraulic motor suitable for driving tracked equipment, cranes, buckets, winches and wind lasses, includes a cam 1 around which are a plurality of radially disposed telescopic tubular elements 3 each comprised of two tubular cylindrical portions 4, 5 with sealing gaskets 4B, 5B, 6 and containing a spring 7 which maintains one end of each element in sliding contact with the spherical surface of the cam 1 and the other in sliding contact with a rigid spherical cap 8, which cap is provided with a passage port 10 which connects the chamber 13 into alternate communication with a source of pressurized liquid and a discharge line. Each passage port 10 has a pipe 11 connected to a distributor which admits pressurized liquid such as pressurized oil, to the passage 10 whereby pressure is transmitted on to the surface of the cam 1 and the cap 8 so that the cam rotates around the axis of the shaft 2. In an embodiment, Fig. 3, a sleeve 15 is made rigid with the tubular portion 5 by means of a threaded nut 16, and a solid element 18, the rod 17 of which is guided into the sleeve 15, is made rigid with the tubular portion 4. Sealing gaskets 20, 23, 68 are provided of which 20, 23 may be made of plastics material. The spherical cap 8 has a hollow 24 which communicates via holes 26 with an annular cavity 25 which in turn communicates alternately with a source of pressurized fluid and a discharge line.
Patent GB-946287-A (GB)
Title: Bearings for multiple assemblies of textile spinning, twisting and winding machines
IPC: D01H5/74
Filed: 1962-11-23
Abstract: 946,287. Bearings &c. BABMER MASCHINENFABRIK A.G. Nov. 23, 1962 [Dec. 7, 1961], No. 44437/62. Heading F2A. [Also in Division D1] A bearing for a spinning, twisting and winding machine is carried by a support 2 which has an aperture, comprising a partcylindrical portion 20 and a radial opening 22, therein. The portion 20 encloses at least 240 degrees of the circumference of a bush 19 mounted therein and may be lined with lead alloy or synthetic plastics material for example. The radial opening 22 is wider than a shaft 18 mounted in said bush 19 and narrower than the latter. The bush 19 may be held in position by a pin 23, for example, and may be split.
Patent GB-991626-A (GB)
Title: Measuring the nip-width between two rolls
Inventor: LOMAS TEDDIE WARD
IPC: G01B7/14
Filed: 1961-12-12
Abstract: 991, 626. Measuring roll nip width electrically. HADFIELDS Ltd. Dec. 12, 1962 [Dec. 12, 1961], No. 44456/61. Heading G1N. The resistance between the ends of a strip 6 made from material possessing a high specific resistance, depends upon the length shorted by being pressed into contact with a highly conductive and parallel strip 10 by the nip of respectively hard and resiliently surfaced rolls 3, 4 of a papermaking machine, the length of the material strip contact being a measure of the nip-width A-B produced. The strip 6 may be bonded on to a flexible insulating strip 7, the sides 11, 12 of which are doubled over to enclose copper wires 8, 9 each connecting one end of the strip 6 to a bridge circuit. The strip 10 is normally spaced from the strip 6 by a small air gap by bonding it to the doubled edges of the strip 7.
Patent GB-942964-A (GB)
Title: Purification of butynediol
IPC: C07C33/042
Filed: 1961-12-13
Abstract: 2-butyne -1,4-diol is purified from formaldehyde by admixing a solution in water or an organic solvent with an alkali metal or alkaline earth metal hydroxide in an amount less than 0.25 mole equivalent per mole of formaldehyde and sufficient to yield a pH within the range 7.5 to 11 and gradually adding more of the alkali to maintain the pH and until the desired reduction in formaldehyde content is obtained. Specification 942,963 is referred to.
Patent GB-1494267-A (GB)
Title: Gas regulating system for a forced draft gas heater
IPC: F23N3/08
Filed: 1975-10-30
Abstract: 1494267 Burner gas supply control; automatic control of fuel supply SAUNIER DUVAL 30 Oct 1975 [24 Dec 1974] 45068/75 Headings F4B and F4T A gas regulation system for a forced-draught gas fueled heater comprises an extractor fan 5 and a solenoid-operated gas supply valve 9 which is controlled in dependence on the speed of rotation of the fan. Upon increase in heat demand of the system, control circuit 22 causes water circulation pump 25 and the fan 5 to speed up, and the increase in speed of the fan as sensed by pickup 51 and measured by revolution counter 50 causes an increase in opening of the solenoid valve 9.
Patent GB-1370666-A (GB)
Title: Magnetic bearing arrangements
IPC: F16C39/06
Filed: 1971-09-29
Abstract: 1370666 Automatic control of position H HABERMANN 29 Sept 1971 [22 Oct 1970] 45447/71 Heading G3R [Also in Divisions B2 and F2] A rotor is retained in a substantially vertical position by upper and lower, coaxial, bearings providing axial and radial stabilization, at least one of the bearings having a winding controlled by a rotor axial position detector, the control means being independent of the control means, if provided, associated with the other bearing. As shown, a shaft 3 and associated rotor cell 4 of a centrifuge are rotated about a vertical axis in annular magnetic bearings 1, 2 each comprising a winding 5, 9 respectively in metal channels 7, 10 which form a magnetic path with channels 8, 11 that are integral with or fixed to shaft 3. The air gap between fixed channel 7 and channel 8 is maintained constant by excitation control of winding 9 according to the axial position of shaft 3 as detected by coil 6. Coils 5, 9, which both provide upward forces on shaft 3 and work in their non-saturated region, also provide radial forces to maintain the shaft 3 and coils 5, 9 coaxial. In Fig. 3 (not shown), coil 6 is fed from an A. C. source and provides a shaft position signal that is fed through a filter and phase advance network to an amplifier, that controls the excitation of coil 5 and which also receives a D.C. signal proportional to the weight of shaft 3 and rotor 4. In an alternative, Fig. 2 (not shown), the bearing coils produce forces on the shaft in opposite directions, and the power to the coil in each bearing is controlled by a respective shaft position detector at either end of the shaft, the lower coil being slidably mounted in a fixed support to allow for variations in the length of the shaft. This apparatus is said to dampen critical vibrations.
Patent GB-1091598-A (GB)
Title: Processes and devices for measuring stresses within a transparent body for electromagnetic waves
IPC: G01B11/16
Filed: 1964-11-09
Abstract: 1,091,598. Photo-electric stress measurement. ETAT FRANCAIS. Nov. 9, 1964 [Nov. 12, 1963], No. 45681/64. Heading G1A. Fig. 23 shows apparatus for determining the stress pattern in a photo-elastic model M by measuring its bi-refringent properties, in which polarized light produced by the scattering within the model of the incident light beam, from source S 1  lenses L 1  - L 4  and prism P, is received upon a photo-multiplier 4, arranged perpendicularly to the incident light beam, after passing through a rotating analyzer A. The model is rotated step by step about the axis R and for each position the output of the photo-multiplier consists of a D. C. component and an A. C. component. If the D. C. component is held constant by suitable adjustment of the intensity of the incident light beam, the value of the A. C. component changes during the model rotation due to changing amplitudes of the vibrations comprising the elliptically polarized radiation and shows two maxima during one revolution of the model. These maxima correspond to the direction of the axis of the bi-refringent element considered within the model from the point at which the polarized light is produced to its point of exit from the model. By moving the prism P leftwards a small distance a similar measurement can be obtained and the difference between them gives the axis of a small element at the point corresponding to the distance traversed, or the amount by which the ellipse has been rotated by that element. The change in shape of the ellipse or the change in phase of its two vibrations from the first point of measurement to the second gives the phase angle introduced by this small element. From values of the axis and phase angles of these bi-refringent elements throughout the model the magnitudes and directions of the stresses in the model can be calculated knowing their value at one point. The model is submerged in a liquid of the same refractive index. The D. C. value of the photo-multiplier output may be controlled either by adjusting the diaphragm D 2  or the intensity of the lamp. In an arrangement using a two dimensional model Fig. 13 (not shown) the polarized light is produced external to the model by a polarizer which is rotated instead of the model, and the analyzer receives light directly transmitted through the model. The Specification gives the mathematical basis of the determination.
Patent GB-1027304-A (GB)
Title: Photographic apparatus
IPC: G03B27/58
Filed: 1962-12-03
Abstract: 1,027,304. Photographic printer-reader. ITEK CORPORATION. Dec. 3, 1962 [Dec. 1, 1961], No.45696/62. Heading G2A. The image of a transparency 35 is projected along path A and reflected from a mirror 44 along path B to be thrown on to a viewing screen 45, after which a mirror 46 is tilted up from a lower position, in which it is clear of path A, to an upper position in which it intercepts path A and reflects the image down along light path C, a further mirror 48 reflecting the image again to a photosensitive sheet 22 behind a glass plate 50. Figs. (not shown) 3 and 4 illustrate in more detail the mounting and control of the movable mirror 46, the optical system (lamp 40, condenser system 41, and objective 42), and the demountable transparency-holding plates 36, 37 and pressure plate 38, and the means for displacing the transparency horizontally or vertically (by operation of control knobs on the main housing). An adjustable mask is provided, so as to control the size of image produced, and the length of paper advance after each exposure can a also be varied. The photosensitive paper 22 is unwound from a roll 21, threaded across plate 50 and under feed rollers 24. After an exposure has been made, the rollers 24 feed the sheet onwards towards further roller pairs 26, while a knife 25 is operated to sever the sheet from the roll. Figs. (not shown) 7, 8, and 9 illustrate in greater detail the sheet-feeding and severing mechanism. Rollers 26 form part of a two-stage liquid processing section, again illustrated in greater detail in Fig. 8 (not shown), after which the sheet passes between squeegee rollers 32, and a finished print is delivered through shoot 34. The lamp 40 is energized to give a high-intensity illumination for the screen inspection and a lower intensity for the photocopying exposure, and Fig. 10 (not shown) is a schematic electrical circuit for controlling the whole sequence of operations automatically.
Patent GB-1121348-A (GB)
Title: Guiding loads
IPC: E21B41/10
Filed: 1966-10-13
Abstract: 1,121,348. Releasable fastenings. ROCKWELL MFG. CO. 13 Oct., 1966 [18 Oct., 1965], No. 45850/66. Heading E2A. [Also in Division B8] A device for guiding a load 12 along a cable 40 comprises a cylindrical portion having a longitudinal slot 21 and supporting the load on a plate 11 secured thereto, and two end pieces 22 each having a slot 26 which when aligned with the slot 21 permits entry of the cable into the cylinder whereupon the end pieces are rotated to look the cable in the device. The end pieces are sprung onto and engage the cylindrical portion via grooves and lips. Spring catches 32 on the inside of the end pieces engage the slot 21 when the pieces are rotated into the cable locking position.