baber/WOPTO huggingface dataset:
Patent GB-908387-A (GB)
Title: Improvements in or relating to apparatus for measuring reflection coefficient
IPC: G01R27/06
Filed: 1959-09-24
Abstract: 908,387. Apparatus for measuring the reflection coefficient of transmission lines. GENERAL ELECTRIC CO. Ltd., and EASTER, B. Nov. 24, 1960 [Sept. 24, 1959], No. 32525/59. Class 37. [Also in Group XL (c)] Apparatus for measuring the reflection coefficient p = Z L -Z O /Z L +Z O    of a transmission line 1 of characteristic impedance Z o  connected at 7 to a load impedance Z L  (not shown), comprises devices 2, 3, 4 (bolometers, Figs. 3, 4, not shown) providing outputs of amplitude V a , V b , V c  proportional to the square of the field strength at A, B, C, respectively, these outputs being combined in transformers 11, 12, 13 to produce signals of amplitude V a +V c  V c  - V a  and (Vb - ) which 2 are then amplified in control circuits 14, 15 by factors 1/sin 2#, 1/sin<SP>2</SP># respectively,   and applied to the plates of a C.R.O. 35, the polar co-ordinates of the point on the screen therefore representing the modulus and argument of the reflection coefficient expressed as re j# or r cos #+jr sin #, r sin # and r cos # being stated to be equal to respectively, i.e. to the inputs to the C.R.O., where # = 2 # 1/#, where the spacing of a, b, c is   1 metre and the wavelength of the H.F. signal # metres. The line 1 is supplied with an amplitude modulated signal from source 6 at 5. Five bolometer devices may be used.
Patent GB-848483-A (GB)
Title: Improvements in dry cleaning processes
IPC: D06L1/04
Filed: 1957-10-18
Abstract: A disinfectant dry cleaning composition comprises an aqueous solution of formaldehyde dispersed in a preponderating quantity of a dry cleaning solvent, preferably white spirit or trichlorethylene.  The quantity of water used should be such that when the solvent has evaporated from treated material, the material appears to be dry.  If necessary to produce a stable dispersion, an oil-soluble anionic, non-ionic or cationic dispersing agent may be used.  Specification 838,852 is referred to.
Patent GB-1081754-A (GB)
Title: Oxidation resistant material
IPC: C22C49/08
Filed: 1964-08-11
Abstract: A sintered oxidation resistant material comprises a matrix predominantly composed of Ni and Cr, preferably 70-90% Ni and 10-30% Cr by weight, with fibres of W, Mo, Ta, Nb or their alloys uniformly distributed throughout the matrix.  The fibres form 5-40% by volume of the material and have diameters of 0.001" to 0.05".  The fibre length may be 1/16 " to 3" for randomly oriented fibres or with oriented fibres the length may be the full length of the sintered body.  The mixed fibres and powders are compacted and sintered in a reducing atmosphere at 2300 DEG  F. maximum.  A coating 0.001" to 0.005" thick of NiCr may be formed on the green compact by pressing NiCr powder on the compact and then sintering.
Patent GB-721267-A (GB)
Title: Improvements in or relating to centrifugal separators
Inventor: SCOTT WALTER ALBERT
IPC: B04B9/12
Filed: 1952-12-29
Abstract: 721,267. Universal joints. DE LAVAL SEPARATOR CO. Dec. 29, 1952. No. 32845/52. Class 80 (2). [Also in Group II]. The rotary bowl 2 of a centrifugal separator is mounted on the drive spindle 27 by means of a resilient plug 23 closely fitting within a passage on the axis of the bowl, and having an axial recess engaged by the dog 26 of the spindle. The plug may be slightly tapered and has a rib 28 engaging a slot in the member 6 forming the passage.
Patent GB-506513-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/34
Filed: 1937-11-29
Abstract: 506,513. Vacuum cleaners. HOOVER, Ltd. Nov. 29, 1937, No. 32874. Convention date, Dec. 16; 1936. [Class 8 (i)] The nozzle-supporting wheels B are carried by a pivoted U-shaped axle D acted on by a torsion spring tending to lift the nozzle above the wheels. Pressure on a pedal J retracts a spring-pressed bar H, which first depresses a spring feeler M a fixed distance below the nozzle and then releases a spring pawl G from a ratchet sector F carried by the axle D, allowing the nozzle to take a position in accordance with the amount by which the wheels sink into the surface. Release of the pedal allows the bar H to return, first engaging the pawl and ratchet and then releasing the feeler which rises again into the nozzle.
Patent GB-604841-A (GB)
Title: Improvements in electrical plug type terminal couplings
IPC: H01R13/20
Filed: 1945-12-05
Abstract: 604,841. Two-part couplings. WOOLER, J. Dec. 5, 1945, No. 32943. [Class 38 (i)] In a plug-and-socket connector of the type wherein a spring 6 encircles the socket 1 and has a straight leg 3 protruding into the bore of the socket through a slot in one side of the socket, the plug 7 is formed with a groove 9 which co - operates with the spring 6 when the plug is in position in the socket. The spring 6 is accommodated in an annular groove on the socket.
Patent GB-1248143-A (GB)
Title: Electron beam tubes having x-ray shield structures
Inventor: SANDSTROM LARS H
IPC: H01J23/033
Filed: 1969-06-30
Abstract: 1,248,143. Discharge tubes. VARIAN ASSOCIATES. 30 June, 1969, No. 32999/69. Heading H1D. The fluid-cooled collector 4 of an electron beam tube is provided with an X-ray shield the end portion of which includes two axially spaced disc members 28 and 35 through each of which coolant passes by means of input and output ports 26 and 27, and 39 (one hidden) respectively, all the ports being offset from one another to prevent the penetration of X-rays therethrough. As shown in Fig. 3, the discs 28 and 35, e.g. of lead, are apertured at 31 and 32, and 36 and 37, respectively, for the receipt of the coolant ports, and are each formed in two parts, with stepped joints (Fig. 4, not shown) to reduce the penetration of X-rays, along the lines 42 and 41 respectively bisecting the apertures to facilitate assembly. Further X-ray shielding material 43 and 45 extends around the input and output elbow fittings 38, and along the sides of the collector, and is covered on the outside by an outer iron magnetic shield 46, and contacts on its inside an insulator 47 to permit the application to the collector of a potential different from that of the tube body. The coolant system is formed by an array of copper fins 14 extending from the cylindrical copper collector wall 11 to a surrounding stainless steel baffle 15 to form a plurality of axially extending passages which at the tube end all open into an annular chamber 17, and at the other end open alternately into fluid inflow passages formed between radial fins 14 extending between the conical collector wall 13 and the baffle 18, and into the fluid outflow chamber 20. The inflow and outflow paths from the ports 39 in apertures 36 and 37, Fig. 3, are defined in the end chamber 22 by a bent partition 44, Figs. 2 and 3.
Patent GB-929994-A (GB)
Title: Improvements in and relating to temperature sensitive expanding and contracting devices
Inventor: HUGGETT LEONARD GEORGE
IPC: F16J15/06
Filed: 1958-10-17
Abstract: 929,994. Pipe joints. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 6, 1959 [Oct. 17, 1958], No. 33190/58. Class 99(1). [Also in Group XIII] A temperature-responsive device (see Group XIII), e.g. for compensating for differential thermal expansion in joints between members (such as pipes) of materials of different expansion, has two contiguous components 1, 3 of materials of different expansion and at least one of the components has a sloping surface 2 for the contact between the two. The components may both be of metal or one may be of ceramic or cermet, or one may be of ceramic and the other of cermet. Silicon carbide, metal-bonded titanium carbide and chromium-nickel steel are referred to. There may be a thin film of lubricating or gas-sealing material between the contact surfaces of the components. The devices may be single, or they may be double as shown in Fig. 5 in which case the high expansion components may be adjacent and combined in one piece 3, Fig. 3 (not shown), or the low expansion components may be so combined in one piece 1, as in Fig. 5. A number of double devices may be used in series. The components may constitute the end of a metal pipe 5, Fig. 4, and the end of a ceramic pipe 7, to compensate for the expansion of bolts 9 connecting flanges 6, 8 round the pipes. In the examples shown, increase of temperature causes an increase in the height of the device but if the materials of the components are interchanged there is a decrease in height. In Fig. 5, the device 1, 3 compensates for the differential thermal expansion in a flange-and-bolt joint between pipes 10, 11 which had a gas-filled metal 0-ring 14 between them.
Patent GB-331995-A (GB)
Abstract: 331,995. Siemens Bros. & Co., Ltd., and Moore, A. T. C. May 22, 1929. Semi-automatic exchange systems.-In a system in which an I operator at one exchange is able to control apparatus at another exchange, a separate junction common to all the conversational junctions is employed for the transmission of the control and supervisory signals, the signals associated with each conversational junction consisting of alternating currents of frequencies which are individual to that junction. The Figure shows two exchanges connected by seven twoway junctions, six, 1- 6. being used for conversation and the seventh 7 for control and supervision. Signalling currents of two frequencies, one in a lower band and the other in a higher band, are allotted to each conversational junction 'for transmission in either direction over the control junction, and these are supplied by generators G 1-6, G<1> 1-6 connected in parallel, while tuned amplifier.rectifiers R 1-6, R<1> 1-6, also connected in parallel, are provided to respond to these currents. The control junction is connected at each end through hybrid transformers and suitable filters P1, P2 P<1>1, P<1>2 to the generators and amplifier-rectifiers. Each conversational junction terminates as shown for 1, 2 in automatic equipment AE, A<1>E<1>. Assuming the operator at the left-hand exchange plugs into the jack J<1> of the junction 1, relays A, D energize in the sleeve circuit, connecting the jack to the junction, lighting lamps L1, L2 and starting the corresponding generator G1, which feeds current over the control junction 7 to the right-hand exchange, where it is received by the amplifier-rectifier R<1>1, and relays B<1>, C' energize, lighting lamp L'l and closing the repeater circuit to the automatic equipment A<1>E<1>. The operator dials over the sleeve circuit, and relav D repeats the impulses to the circuit of the generator G1. Relay C<1> responds at the righthand exchange and repeats the impulses to the automatic equipment. When the wanted subscriber is rung, ring-back tone is transmitted over the junction 1 to the operator. Supervisory relay S<1> operates when the subscriber replies and starts the generator G<1>1, which feeds current over the control junction to the amplifier-rectifier R1, and relays B, C energize, extinguishing lamp L2. If the wanted subscriber is busy, busy tone is transmitted over the junction 1, while supervisory relay S' operates intermittently, sending intermittent current over the control junction to flash lamp L2. When the called subscriber hangs up, relay S<1> releases and disconnects the generator G<1>1, so that relays B, C fall back and lamp L2 lights to give a clearing signal. The operator withdraws her plug and relays A, D release, reconnecting the junction 1 to the automatic equipment AE and disconnecting the generator G1. Relays B<1>, C<1> at the right-hand exchange relapse and lamp L<1>1 is extinguished. The invention may be applied to four-wire junctions, in which case the filters at the ends of the control junction are unnecessary.
Patent GB-197622-A (GB)
Title: Improvements in feeding mechanism for sewing machines
IPC: D05B27/02
Filed: 1922-12-06
Abstract: 197,622. Thompson, W. P., (Union Special Machine Co.). Dec. 6, 1922. Sewing-machines; feed by dogs; presser-feet.-In a multiple-needle machine sewing a seam such as that shown in Fig. 7, the presser-foot 2, Fig. 4, is recessed as at 10 from the stitching point, to accommodate the overlapped portions of fabric and, in addition to the main portions 13, 14 of the feed-dog which engage the work on either side of the seam, a spring- pressed portion 19 is mounted in the forward end of the feed-dog to project above the surface of the main feed-dog and engage the overlapped portions after they pass from the stitching point. The portion 19 is pressed upwards by a spring 20 and is guided and limited in its movement by two bolts 16. A differential feed-dog may also be provided.
Patent GB-998492-A (GB)
Title: Suitcase and like handles
IPC: A45C13/26
Filed: 1961-09-18
Abstract: 998,492. Suitcase handles. E. M. JONES. Aug. 22, 1962 [Sept. 18, 1961], No. 33331/61. Heading A4G. A suitcase handle comprises a U-shaped member, has a cross-bar B by which the handle is gripped and an upper portion A adapted to bear against the forearm when the suitcase is being carried, the lower portions of the limbs of the handle being secured to the suitcase. The handle above the cross-bar B may be hinged to the lower portion of the handle as shown at G and the material of the suitcase may be engaged in a slot D in the handle and rivetted thereto. Alternatively the lower ends of the handle may be strapped to the suitcase.
Patent GB-750193-A (GB)
Title: Improvements relating to multipole annular permanent magnets
Inventor: SURTEES HOWARD
IPC: H01F13/00
Filed: 1953-12-02
Abstract: 750,193. Magnetizing apparatus; permanent magnets. FAIREY AVIATION CO., Ltd. Dec. 2, 1954 [Dec. 2, 1953], No. 33455/53. Class 35. An apparatus for magnetizing the end face of a ring with a plurality of pairs of poles comprises an outer rim 1 of magnetic material having inwardly directed radial spokes 2 carrying magnetizing coils 5, the inner ends of the spokes being arranged to project through an inner ring 3 of non-magnetic material. The ring to be polarized has preferred direction of magnetization substantially parallel to its axis and, instead of a ring, there may be a hollow cylinder. The internal diameter of the inner ring 3 is designed according to the size of the ring to be magnetized so that the latter will fit -easily inside it with one end face resting against the poles 4 projecting within the ring 3. If the blank is to be polarized on both of its end faces, then the blank is positioned between two similar magnetizing apparatus with its lower' end resting against the poles 4 of one apparatus, and the poles of the other apparatus resting against its upper end as in Fig. 4.
Patent GB-1428273-A (GB)
Title: Liquid detergent compostiions
IPC: C11D3/00
Filed: 1973-07-13
Abstract: 1428273 Liquid detergent compositions COLGATE-PALMOLIVE CO 13 July 1973 [20 July 1972] 33587/73 Heading C5D Heavy duty liquid detergent compositions which are essentially phosphate-free and nitrogenous-builder-free comprise (a) from 30 to 70% by weight of an anionic detergent of formula wherein R is C 10 -C 20  alkyl, n is 2 to 6 and M is alkali metal, ammonium, alkylammonium or alkanolammonium, (b) 5 to 50% of water and (c) 7 to 25% of a C 2 -C 4  aliphatic monohydric alcohol. The compositions may contain up to 25% of a supplemental detergent compatible with component (a), such as a nonionic detergent of formula wherein R<SP>1</SP> is C 10 -C 20  alkyl and m is 5 to 14 and is 2/5 to 1 times the number of carbon atoms in R<SP>1</SP>. Optical brighteners and/or soap may be present. The preferred alcohol (c) is isopropanol.
Patent GB-1274440-A (GB)
Title: Process for the impregnation dyeing of synthetic fibre materials
Inventor: NEEFF RUETGER
IPC: D06P1/90
Filed: 1970-07-10
Abstract: 1,274,440. Impregnation dyeing of synthetic fibre materials. FARBENFABRIKEN BAYER A.G. 10 July, 1970 [12 July, 1969], No. 33615/ 70. Heading D1B. [Also in Division C4] Synthetic fibre materials of polyesters, cellulose triacetate, polyamides, polyurethanes or polyolefins are dyed from organic solvents by impregnation with dyeing liquors containing anthraquinone compounds of formula: wherein R is hydroxyl or amino; R' is H, Cl or Br; X is H or OH or one X is OH and the other a nitro or amino group; Y is a direct linkage or an oxygen atom; n is 1, 2 or 3 and B is a C 1 -C 9  alkyl group, or a cycloalkyl or aralkyl radical, which is optionally substituted by alkyl, the total number of carbon atoms in the substituent or substituents B being at least 2 and at most 9; and subsequently subjecting the materials to a heat treatment. Suitable organic solvents are immiscible with water and have boiling points between 40- 150‹C. Such solvents include aromatic hydrocarbons, aromatic halogenated hydrocarbons or aliphatic halogenated hydrocarbons. The process is carried out by dissolving the dyestuffs in the organic solvents and adding them in solution in solvents which are miscible with the organic solvents to be used and impregnating the synthetic fibre materials with the dyestuff solutions. The dyes are then fixed on to the fibre materials by heat treatment. The heat treatment may consist of a dry heat treatment at 120-150‹C, in which case the treatment can optionally be preceded by an intermediate drying or by treatment of the fibre materials in superheated solvent vapour at 100-150‹C. Mixtures of dyestuffs may also be used in the process. The dyestuff solutions may contain soluble auxiliary agents e.g. condensation products of phenols and ethylene oxide to improve the uniformity of the dyeing. The resulting shades are reddish or greenish tinged blue, blue or violet.
Patent GB-521081-A (GB)
Title: Improvements in and relating to valve gears for steam engines
IPC: F01L29/04
Filed: 1938-11-18
Abstract: 521,081. Steam-engine valve-gear. CAPROTTI VALVE GEARS, Ltd. (Kupka, J. J.). Nov. 18, 1938, No. 33620. [Class 122 (ii)] In Walschaert, Stevenson and other link motions for the valve gear of steam engines a supplementary device is connected to the last member of the link or other motion employed to impart increased acceleration or deceleration. A rocker is mounted on a fulcrum and has oppositely disposed rollers or other antifriction means moved by shaped surfaces reciprocating on a stationary guide. A foot part of the rocker is attached to the valve spindle by means permitting circular movement. As shown the radius or driving rod 7 of a Walschaert or like. gear is attached to the combination lever 12, which is attached at one end by a link 12a to the crosshead 2 and at the other end to a reciprocating member 13 with slots 15 so shaped as to provide the necessary motion to a rocking member 16 pivoted at 17 and carrying antifriction rollers 18, 18a. The foot of the rocking member is connected to the valve spindle 20 by a link 21 which allows for the circular motion of the foot.
Patent GB-1177072-A (GB)
Title: Improvements relating to Electric Motor Control Systems
Inventor: SIMCOCK JOHN HENRY
IPC: H02P7/29
Filed: 1966-07-26
Abstract: 1,177,072. Control of D.C. motors. CABLEFORM Ltd. 24 Dot 1967 [26 July, 1966], No.33673/66. Heading H2J.  In a system wherein the speed of a motor 20 is controlled by an accelerator which varies the duty factor of a thyristor 12 in the supply circuit, direction is selected by relays 3, 4 which can be energized on the one hand through a manual preselector switch 50 but not through contacts 46/1 associated with the accelerator or on the other hand through a holding circuit including the latter but not the former. Thus, direction can be selected or changed only when the accelerator is at zero speed position. The thyristor circuit is of the type having a commutating thyristor and capacitor which is charged through an inductor during " on " periods. The direction relays 3, 4 switch the motor field 21 and their circuit includes a seat switch 49 and mechanical brake switch 220. A relay 2 controlling the charging of the commutating capacitor is energized whenever a direction relay is energized, and a " driving relay " 10 which is energized when accelerator contacts 46/1 close, closes only after a delay (by capacitor 226) so that a relay 6 controlling the triggering circuit cannot close before the direction relays. In Fig. 2 (not shown), the charging circuit for the commutating capacitor is modified and the relay 2 omitted. Other features of the system, including dynamic braking, are as described in Specification 1,177,071.
Patent GB-428920-A (GB)
Title: Improvements in and connected with floors, roofs and the like assemblies
IPC: E04B5/26
Filed: 1934-11-26
Abstract: 428,920. Floors; roofs. DUNN, W. E., 302, High Holborn, London.-(Lith-I-Bar Co. ; Kalamazoo, Michigan, U.S.A.) Nov. 26, 1934, No. 33885. [Class 20 (iv)] A floor, roof or the like comprises pre-cast reinforced-concrete slabs 5 arranged to overlie pre-cast reinforced-concrete joists 1 and provided with a concrete mortar top finishing layer 14, the said slabs 5 having their bases united to the upper faces of the joists 1 by the provision of a cement binding medium 10 to form a cement-to-cement bond between the slabs and the joists, and being connected together along the abutting edges which extend transversely of the joists by a mortar joint. The cement 10, which binds the slabs to the joists, is provided with flared shoulders 11 as shown in Fig. 2. The abutting edges of the slabs may be bevelled or stepped, or partly bevelled and partly stepped, to form channels to receive the mortar jointing material, which may be reinforced by rods arranged in the joints. The finishing layer 14 is reinforced by rods 12 laid transversely across the upper faces of the slabs 5. The mortar joint between the side edges of the slabs may be formed when the layer 14 is cast in position. Reinforcing rods 13, Fig. 5, may be disposed over main supports for the joists 1, and such supports may be cast in situ so as to embrace the ends of the joists and to become integral with the layer 14. The same cementitious material may be used for the joists 1, slabs and mortar. Wood boards may be secured to wooden sleepers 15 embedded in the layer 14. The joists may be reinforced by upper and lower rods 2, 3 connected by metal members 4.