baber/WOPTO huggingface dataset:
Patent GB-831554-A (GB)
Title: Improvements in windscreen wiper motors
Inventor: KERR ARTHUR EDWIN
IPC: B60S1/10
Filed: 1957-05-06
Abstract: 831,554. Compressed-air engines. TRICOFOLBERTH Ltd. May 6, 1958 [May 6, 1957], No. 14368/57. Class 122 (3). A windscreen wiper motor system comprises a compressed-air operated double-acting vane or piston 30, Fig. 1, a restrictor 34 through which exhaust air flows to atmosphere and control means which, when the motor is stopped, isolates it from the air supply and, on starting, ensures that at the end of the first stroke the pressure on the exhaust side of the piston is not substantially below that in normal use. As shown in Fig. 1, the control means is in the form of a manually-operative valve comprising a valve spindle 2 finely screw-threaded into a barrel 3 and having three sealing rings 6, 8, 10 defining two annular spaces 12 and 14 within the barrel. In operation, upon initial rotation of the spindle 2, compressed-air is admitted through a port 16 into a passage 18 communicating with the annular space 14 and with a passage 24 leading to an auxiliary valve 32, the latter valve then being operated to cover an exhaust port 33. Upon continued rotation of the spindle, the sealing ring 6 uncovers a passage 20 and allows the air to pass through a distributing valve 28 to one end of the piston 30. Movement of the piston then causes the pressure of the air at its opposite end to increase due to the closed exhaust port until, upon further rotation of the spindle, the air supply to the auxiliary valve is shut-off thereby allowing it to uncover the exhaust port 33 and permit the air to escape to atmosphere; the air trapped in the passage 24 is also able to escape to atmosphere through a passage 26. In an alternative arrangement, the passages 18, 20 may be in alignment and the passage 24 connected directly to the exhaust side of the distributing valve 28 so that air is supplied to both ends of the piston 30 and then to the distributing valve 28 in the normal way, the auxiliary valve 32 being dispensed with. In a further modification without the use of the auxiliary valve 32, the starter valve is provided with two sealing rings and is so arranged that when the valve is first opened compressed-air is supplied through the distributing valve 28 to the motor with the exhaust port closed and, after continued rotation of the spindle, the pressurized exhaust air is allowed to escape through the distributing valve to atmosphere. In a still further modification as shown in Fig. 7, the motor is controlled by a differential piston 50, having ends 54, 56, to which latter end 56 compressed-air is fed through a port 62 thereby holding the end 54 in a position to cover the exhaust port 60 until the pressure of the exhaust air in the passage 58 builds up sufficiently to move the piston and uncover the exhaust port, the air then passing to atmosphere through a restrictor; the pressure on the end 54 may be increased by enlarging its diameter as shown, or by fitting a spring and a dashpot 64 may be mounted on the piston 50. Specification 817,923 is referred to.
Patent GB-1447241-A (GB)
Title: Data signal switching apparatus
IPC: G08C15/12
Filed: 1973-03-26
Abstract: 1447241 Multiplex pulse signalling DEFENCE SECRETARY OF STATE FOR 19 March 1974 [26 March 1973] 14465/73 Heading H4L  In a system in which a plurality of signals having different sampling rates are combined in time division multiplex, address words are stored at the multiplexer and selected sequentially to denote the particular sampling rate to be used with a given signal. The multiplexing of data signals in aircraft on test flights is referred to. As shown in Fig. 1, pulse generator PG produces pulses at p times the time slot rate which are supplied to a timing circuit TC deriving pulses at the time slot rate on line TS and the required sampling rates on lines Sr to S1. Each time slot is thus divided into p subdivisions some of which are allocated for control operations and most or all being associated with a particular sampling rate. For each of the r sampling rates there is a group of data input channels denoted by address words the first part (or starting address) of which is common and denotes the sampling rate and the second part of which changes in a predetermined sequence to denote the particular input channel. The outputs from TC control an address word resetting circuit AWRC so that it supplies prearranged address words to a working store WS at appropriate times. Address words from store WS are supplied to a logic circuit LC which selects one address word in each time slot and passes the selected word, or a control command derived therefrom, to an address input of the multiplexer TDM. TDM includes input gates so that in response to each address command, the signal on one of the data channel inputs will be sampled and passed to the output line MXD. For example, al separate channels may be sampled once per frame, a 2  sampled twice per frame, a 3  sampled four times per frame, and so on. The circuit LC also causes each selected address word to be replaced in the store WS by the next address in the sequence. It is suggested that in addition to the addresses, signals may be stored representing parameters or requirements of the channel concerned, e.g. unipolar, bipolar multilevel or analogue, amplification required, or choice of filter.
Patent GB-935881-A (GB)
Title: Liquid ring type rotary compressor
IPC: F04C19/00
Filed: 1961-04-21
Abstract: 935,881. Liquid-ring compressors. V. RAVERA. April 21, 1961 [April 28, 1960], No. 14520/61. Class 110 (1). A liquid-ring compressor comprises a fixed central body having intake and delivery channels for the gas and an intake duct for the liquid, two central fixed cones symmetrically arranged with respect to the central body and communicating with the channels and intake duct, a casing on each side of the central body, and two impellers symmetrically mounted on a central shaft which is supported at its ends by supports that are connected to the casings and have chambers for liquid for cooling and lubricating stuffing boxes connected to the shaft. Casings 13, Fig. 1, are bolted to a central body 1, cones 8 each being interposed between the body 1 and the respective casing 13 and held in place by the latter. End housings 15, carrying bearings 18 and stuffing boxes 21, are bolted to the casings 13. A screw 25 at each end of the shaft serves to hold a bush 19, sleeve 23 and impeller 12 in place on the shaft, with the impeller abutting against a shoulder 20a. The left-hand bush 19 is integral with a shaft coupling 19a. The bearings are cooled by vanes 19b. Lubricating and cooling liquid is supplied to the stuffing boxes 21 through intakes 17a. The central body 1 is provided with an inlet 4 and outlet 6, Fig. 2, for the gas and an inlet 7 for the ring-forming liquid. From the inlet 7, the liquid passes around the shaft at 30 and then issues through the gas inlet ports 10 in the form of blade-like jets, the surface of each jet being parallel to the inner surface of the liquid ring 33. The jets improve the liquid seal in the areas between the gas inlet ports 10 and outlet ports 10a. The jets are formed by plates 31 which are adjustable so as to regulate the rate of flow and the form of the jets.
Patent GB-1012801-A (GB)
Title: End loading magazine for staples and like fasteners
IPC: B25C5/16
Filed: 1963-04-11
Abstract: 1,012,801. Fastener driving machines. SENCO PRODUCTS Inc. April 11, 1963 [March 6, 1963], No. 14578/63. Heading B4C. A rear - loading magazine for a machine adapted to drive fasteners, such as staples 24, comprises a guide track 26 located above a fastener support rail 16, and a spring-urged feeder carriage 28 on the track for moving the fastener towards the driving position, at least one arm 31 on the carriage being urged by a spring 33 towards a side 18 of the rail and movable away from the side against the spring force by an extension 31b. The carriage is provided with brackets 30 on which are pivoted two feeder arms 31, each arm having a pair of fingers 41 for engaging the staples 24; the staples are moved towards a track 15, for a driver 13, under the action of a spring device 34, 35. To load the magazine after the carriage has reached its forwardmost position, a strip of staples is pushed over the rear end of the rail until the end staple engages with a spring retainer 37 as shown in Fig. 2. The fingers 41 of each arm are then moved away from the faces of the rail by depressing the extensions 31b on the arms 31 and the carriage then drawn rearwardly against the action of the spring device 34, 35; when the fingers are in line with the last staple they are allowed to re-engage the rail only a single feeding arm is required when feeding, e.g. nails; the driver 13 may be pneumatically actuated as shown in Fig. 1.
Patent GB-266961-A (GB)
Title: Improvements in and relating to wire mattresses
IPC: A47C20/04
Filed: 1926-06-10
Abstract: 266,961. Roth, C. H. June 10, 1926. Mattresses having wire rope, cable, chain or like surfaces supported in a frame by helical springs have hinged folding end-sections 2, 3 made with separate wire rope or the like surfaces 5, 6 flexibly connected to the wiring of the main section 1 at the line of junction, by rings, hooks 15 or chains, so that the surface tensions remains constant. The wire ropes of the main section run longitudinally and of the end sections either longitudinally or transversely. The ends of the main frame ropes 5, 6 are attached to a cross piece 8. The end frames hinged at 4 fold on the main frame and may be bevelled so that an end section is always inclined as a head-rest; it may be angularly adjusted by a ratchet device comprising a pivoted toothed rack bar 21 engaging a projection on the main frame and controlled by cords 23.
Patent GB-560915-A (GB)
Title: Improvements in or relating to means for automatically regulating the temperature ofinternal combustion engines
IPC: F01P7/02
Filed: 1942-10-21
Abstract: 560,915. Cooling cylinders. BRISTOL AEROPLANE CO., Ltd., CZARNOCKI, W., and KRUSCHE, H. S. Oct. 21, 1942, No. 14788. [Class 7 (ii)] [Also in Group XXIX] Apparatus for regulating the temperature of a heat-exchanging unit in or associated with an internal-combustion engine is adjustable by means manually operable to control the power output of the engine to provide an approximately correct cooling rate and by a temperature responsive device to provide the true cooling rate. In the form described for adjusting flaps on the trailing edge of the cowl of an air-cooled engine, as described in Specifications 455,248 and' 455,249, manual adjustment of the throttle control operates a shaft 38 having arms 37, 43. The cain 37 causes a link 26 to tilt a lever 28 to bring a contact into engagement with a corresponding contact on a lever 29 and thus energize a motor for moving the flaps. Movement of the flaps acts through a link 32 to tilt the lever 29 to break contact. A thermostatic capsule 16 controls the valve 17 of a servomotor, the datum point being adjusted by a sleeve 39 actuated by the cams 43. Constrictions 22 restrict the rate of movement of the servomotor piston 21, which is connected to one end of the link 26 through a spring 45, member 24 and link 25.
Patent GB-965391-A (GB)
Title: Pellet mill
IPC: B30B11/20
Filed: 1963-04-16
Abstract: 965,391. Pellet mills. SPROUT, WALDRON & CO. Inc. April 16, 1963 [April 16, 1962], No. 14799/63. Heading B5A. A pellet mill comprises an annular die 15 having radial extension passages 16 releasably clamped between a die support 20 and a die cover 40 the latter having an upstanding clamping ring 49, and pressure rollers 22, 23 supported for axial rotation within the die 15 such that the outer peripheral surfaces of the rollers bear against the inner surface of the die so as to extrude material therethrough. The die 15 is provided with flanges 45, 46 for engagement with corresponding grooves 47, 48 in the die cover 40 and the die support 20 so that the die can be tightly clamped between the cover 40 and support 20 by pivotal clamping bars 55 thus enabling the die to be quickly changed. Cutting knives are provided to slit the material into pellets as it is extruded through the die 15. In an alternative embodiment, Fig. 4 (not shown), a clamping ring 80 is provided for fitting around the ring 49 and has arms 81, 82 engaging bolts 86, 89.
Patent GB-110568-A (GB)
Title: Improvements in Means for Controlling Elastic Fluids.
Inventor: IONIDES ALEXANDER CONSTANTINE
IPC: G05D16/12
Filed: 1916-10-20
Abstract: 110,568. Ionides, A. C., and Cooke. S. V. Oct. 20, 1916. Pressure-regulating valves; fluid actuating- mechanism.-Relates to pressure-regulating valve apparatus for maintaining a constant pressure relation between two elastic fluids for the purpose of mixing them in determined proportions and of the type in which two valves are operated by a diaphragm or bell subjected to the pressures of the two fluids on opposite sides. The valves c, c<1> are double-beat and are positioned one above the other in a vertical casing S, the lower valve c being directly connected to the operating-bell &c. d so as to move therewith, whilst the upper valve c<1> is connected to the bell through direction-reversing means consisting of sensitive levers g<1>, g<6> mounted on points or knife edges; the whole mov. ing arrangement is balanced and the valves travel the same vertical distance in opposite directions. The lower valve is formed with a shaped plug c<8> to render the flow proportional to the travel of the valve. The valves may be built up of light tubular and dished spun or pressed members c<2>, c<3>, c' braced by light tension-rods c<5>. The operating- bell is enclosed in a seal chamber e<1>, e<2>. If the seal is blown by excessive pressure from above, the liquid is directed by a hooded tube e<7> into a chamber e<5> from which it may drain back into the seal chamber through the ball valve e<8>.
Patent GB-706753-A (GB)
Title: Improvements in or relating to method of and apparatus for separating and classifying substantially spherical bodies into different size groups
IPC: B07B13/04
Filed: 1952-06-13
Abstract: 706,753. Separating solid materials. NORANDA MINES, LTD. June 13, 1952 [June 20, 1951], No. 14960/52. Class 117 An apparatus for separating substantially spherical bodies according to size, e.g. pyrite fines moistened with water and formed into balls in a rotating drum, comprises a frusto-conical member 10 which is supported and rotated by belts 20, 21, driven through pulleys 27, 28, and motor 30. The material to be classified is continuously fed by an endless conveyer 31 to the interior of the member 10 adjacent the end having the smaller diameter, a shield 34 deflecting the material in the direction of rotation. The spherical bodies are lifted by the rotation of the member 10 and caused to spin, the larger bodies tending to roll back to a point lower than the smaller bodies, and by means of a diverting plate 38 and shoots 39, 40, the different size ranges may be directed' to different delivery points. Two or more diverting plates may be provided.
Patent GB-769183-A (GB)
Title: Improvements in the production of derivatives of 1.4-diaminoanthraquinone
IPC: C09B1/22
Filed: 1955-05-25
Abstract: Anthraquinone derivatives of the formula <FORM:0769183/IV(b)/1> in which A and B represent hydroxylamino, nitroso, or nitro groups, X is hydrogen, alkyl, or hydroxyl, and Y is hydrogen, halogen, alkyl, hydroxyl, amino, or nitro, are made by treating anthraquinone - 1(N),2 - isoxazoles, of which the 4-position is unsubstituted, in acid medium, with nitrous acid, and, if necessary, with oxidizing agents also. C-Methyl-anthraquinone-1(N),2-isoxazole yields 1-hydroxylamino-4-nitroso - 2 - acetyl - anthraquinone on treatment with nitrosyl sulphuric acid in sulphuric acid, and either of these substances yields the 1,4-dinitro or 1,4-dinitroso body with nitric acid according to conditions, and a further nitro group may be introduced into the other benzene nucleus.  The various anthraquinone-2-aldehydes and 2-caproyl derivatives within the above formula may be similarly prepared from anthraquinone - 1(N),2 - isoxazole and its C-hexyl derivative. The products may be reduced to the 1,4-diamino derivatives (see Group IV (c)).ALSO:Derivatives of 1.4 - diaminoanthraquinone containing an aldehyde, ketone (i.e. acyl) or carboxy group in 2 - position are obtained by reduction in acid medium of compounds of the formula:- <FORM:0769183/IV(b)/1> in which A and B represent hydroxylamino, nitroso, or nitro groups, X is hydrogen, alkyl, or hydroxy, and Y is hydrogen, halogen, alkyl, hydroxyl, amino, or nitro (see Group IV(b)). Reducing agents specified are iron in hydrochloric acid, copper in sulphuric acid, zinc in formic acid, stannous chloride in acetic acid, titanous chloride in acetic acid, sodium dithionite in acetic acid catalytically excited hydrogen in acetic acid.  The products dye cellulose esters, nylon, polynitriles and polyurethanes by the dispersion method.  In examples, (1) 1.4 - nitro - nitroso - anthraquinone - 2 - aldehyde is reduced to 1.4 - diaminoanthraqinone - 2 - aldehyde with copper and sulphuric acid; (2) 1.4 - dinitroso - 2 - acetylanthraquinone is similarly reduced, and (3) its 5 - nitro derivative is reduced with sodium dithionite in acetic acid; (4) 1.4 - dinitro - 2 - acetyl-anthraquinone is reduced with copper and sulphuric acid and the corresponding 2 - carboxy body with stannous chloride, or sodium hyposulphite, or zinc dust in acetic acid.
Patent GB-1390187-A (GB)
Title: Method of cleaning printing type
IPC: B41N3/06
Filed: 1971-05-14
Abstract: 1390187 Cleansing pads R M BARRON and S GRANT 12 May 1972 [14 May 1971] 15050/71 Heading F [Also in Division B6] Cleaning type. A cleaning sheet with fracturable capsules containing cleaning liquid is inserted into a typewriter in place of a sheet of paper. The capsules are secured to the sheet with a flexible adhesive binder which covers them. In a preferred embodiment the cleaning sheet has a substrate comprising a paper/aluminium foil laminate. The foil prevents the cleaning liquid from contacting the roller plates of the typewriter. The capsules comprise a hardened gelatine/gum arabic mixture with a diameter of 100Á to 1000Á, preferably 600Á. The cleaning liquid can be benzene toluene, xylene, carbon tetrachloride, tetrachloroethylene, methylene or ethylene dichloride, methyl ethyl ketone, white spirit.
Patent GB-382905-A (GB)
Title: Improvements in electromagnetic friction clutches
IPC: F16D27/00
Filed: 1932-05-27
Abstract: 382,905. Friction clutches. SEEBERGER, F., 7, Rõmistrasse. Zurich, Switzerland. May 27, 1932, No. 15076. [Class 80 (ii).] In an electromagnetic friction clutch, the slidable clutch member 3 is mounted on the fixed member 4 by means o f interengaging internal and external sets of teeth 3<1>, 41, and transverse rigidity is ensured by the provision of cylindrical bearing members 8, 9 on each side of the teeth, the interspace serving for the reception of lubricant. As shown, the part 8 is formed integrally with the part 4, and the part 9 is screwed thereon, but if desired one of the cylindrical members may be formed on or secured to the movable element 3. The device may be applied to either the fixed- or rotating-coil types.
Patent GB-1218113-A (GB)
Title: Improvements to support piers for mines
IPC: E21D23/08
Filed: 1968-03-29
Abstract: 1,218,113. Advancing mine roof supports. BENNES MARREL S.A. 29 March, 1968 [3 April, 1967], No. 15099/68. Heading E1P. In an advancing mine roof support assembly comprising four props incorporated in a rectangular frame each prop is connected to the advancing jack 7, 8 by a chain 10 whilst the forward props 1 are connected thereto by additional chains 17, the chains being arranged as shown.
Patent GB-876259-A (GB)
Title: Improvements in or relating to tractors
Inventor: MARINDIN ROBERT
IPC: A01B63/112
Filed: 1957-05-13
Abstract: 876,259. Tractor power-lift mechanisms. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN Ltd. Feb. 21, 1958 [May 13, 1957; July 4, 1957], Nos. 15112/57 and 21179/57. Class 79(1). A reaction spring arrangement for a threepoint linkage with automatic depth control comprises two spring units 15, 19 which act in opposition on the movable anchorage member 1 for the top link, the spring units having no preload when the member 1 is in a neutral position. The spring 15 resists compressive forces in the top link while spring 19 resists tensile forces. A slidable member 10 pivotally connected to a rod 11 operates a valve controlling the power lift 12 for automatic depth control. In a modification, the member 1 instead of being connected by a pivot pin 14 to an abutment 13 for the springs has curved surfaces to engage recesses in a pair of abutment members arranged above and below the arm 8, the lower abutment member being in engagement with the upper end of a compression spring provided in place of the spring 19. A second spring adjustable by a screwed abutment may be arranged inside the upper springs. Specification 276,258 is referred to.
Patent GB-476110-A (GB)
Title: Improvements in insulating sleeves
IPC: H01P3/02
Filed: 1936-05-28
Abstract: Electrical insulating-sleeves comprise braided polystyrene threads or bands.  Conductors of high-frequency cables having an insulating covering may be covered with the braided sleeve which may be formed of styrene or other material having a dielectric constant less than 3 and an angle of loss whose tangent is less than ,001.
Patent GB-726474-A (GB)
Title: Improvements in or relating to the quantitative control of the flow of liquids through filters
IPC: B01D37/04
Filed: 1953-06-01
Abstract: 726,474. Filters. HILGE, P. BERDELLE-, [trading as HILGE, P.]. June 1, 1953 [May 30, 1952], No. 15134/53. Class 46. [Also in Group XXIX]  A device and method for controlling the quantitative flow of liquid through a pipe 1 to a filter 2 to maintain its output constam, comprises a member, e.g. a diaphragm 8 or a piston or bellows subject to back pressure from the filter, e.g. via the port 11, for operating a piston or lift valve 3 so as to vary the flow passage directly as the exit pressure varies and which should a maximum pressure or a sudden drop in pressure occur e.g. due respectively to a blocking of the filter by a filtering agent or to breakage of the filter, automatically switches out a motor driving a pump supplying the pipe or closes the valve or another valve in the pipe. The valve operated by the member may be a lift, slide, diaphragm or rotary type. The pump motor may be stopped and/or optical signals made when the filter breaks and the liquid wets a screen of low voltage electrical feelers disposed over the filter.
Patent GB-830629-A (GB)
Title: Improvements relating to high-frequency welding apparatus
IPC: B29C65/04
Filed: 1957-05-13
Abstract: 830,629. High-frequency systems. BAZIN, R. E. July 29, 1958 [May 13, 1957], No. 15165/57. Class 38 (4). A protective system for a H.F. dielectric heating generator 1, 2, 5 interrupts the supply 3 when the generator is delivering excessive current by means of contacts (not shown) operated by a relay coil 6 which is shunted by a thyratron 7 fired by an additional bias developed across a cathode resistor 10, 101. The thyratron standing bias is provided from a resistance network 12-16. The additional bias may be alternatively provided by an anode resistor, or a separate circuit energized when metallic contact between the electrodes is made. The relay coil 6 may be connected directly into the generator circuit. The generator may be built into the machine to eliminate H.F. cables, the current being led to the live electrode by means of a tuned air-spaced stub.
Patent GB-479259-A (GB)
Title: Improvements relating to the shoeing of horses
IPC: A01L7/06
Filed: 1937-06-21
Abstract: 479,259. Horseshoes. HITCHINGS, H. June 21, 1937, No. 15199. [Class 67] The heel portions of a horseshoe are reduced in thickness and fitted with wedge - shaped resilient pads. Each pad is of the form shown in the Figure, the forward end being thinner than the rear and the inner and outer edges being curved to correspond with the curvature of the shoe. A flange integral with the pad fits the inside edge of the shoe.