baber/WOPTO huggingface dataset:
Patent GB-1120172-A (GB)
Title: Servo-assisted hydraulic steering system for a battery operated vehicle
Inventor: OHM EWALD
IPC: B60K1/00
Filed: 1965-09-20
Abstract: 1,120,172. Steering vehicles. HANS STILL G.m.b.H. 20 Sept., 1965, No. 40054/65. Heading B7H. A motor vehicle steering system comprises a steering wheel operated pump 4, a control device 5 adjustable in use by pressure from the pump 4, from which fluid is directed to a steering actuator 2 and an electrically operated pump 7 powered by the vehicle battery which supplies fluid from a reservoir to the control device. The motor 8 for the pump 7 is controlled by a device 9. The system may include, on the output side of the control device 5, a system of spring- loaded non-return valves 17, 17<SP>1</SP> actuated by a reciprocating piston 18 and non-return valves 19, whereby road shocks are isolated from the pumps. Aminimum pressure may be maintained by a spring device 6<SP>1</SP>. In the system of Fig. 4, the output of pump 7 passes through a non- return valve 24 to an hydraulic accumulator 21 and to a control device 23 actuated by fluid pressure from the steering wheel-operated pump 4. The motor controller 9 may be actuated by a switch 22 in response to the pressure in accumulator 21. The pressure output from the accumulator 21 is directed from the control device 23 to the input side of the pump 4. The electric pump 7 may be brought into operation in conjunction with the vehicle ignition switch or by switches operated by the hand or foot brake or a " deadman's brake " or by operation of the travel direction change over device, or by actuation of the accelerator pedal before engaging first gear and the operating switch may include time delay means. Manual operation of the steering system is obtained when the electric pump is inoperative.
Patent GB-1021759-A (GB)
Title: A process for the manufacture of highly pure phenol
IPC: C07C37/74
Filed: 1963-10-11
Abstract: In the process for the manufacture of highly pure phenol wherein a product obtained by the oxidation and decomposition of cumene is fed to a distillation column and phenol free from impurity is taken from the bottom of the column, the distillation is carried out such that the feed contains at least 0.28 parts by weight of cumene per part by weight of phenol and part of the column above the feeding point is maintained at least at a temperature of more than 110 DEG  C. under atmospheric pressure. Preferably the temperature at least five trays upward from the feed tray is maintained to be equivalent to more than 110 DEG  C., preferably more than 130 DEG  C. under atmospheric pressure. The distillation may be carried out at reduced pressure in which case the part of the column above the feeding point is maintained at least at a temperature equivalent to 110 DEG  C. under atmospheric pressure.  In an example, cumene hydroperoxide mixture obtained by oxidation of cumene was decomposed, into an overhead fraction containing acetone, water and hydrocarbon and bottom fraction containing phenol and higher boiling materials, by a continuous distillation column of 45 trays operated at atmospheric pressure in which the feed, which contained 40% acetone, 36% phenol, 8% cumene, 11% water, 5% others (each weight per cent, the ratio of phenol to cumene = 1 :0.22) and 1380 p.p.m. hydroxy-acetone, was introduced into the 15th tray from the bottom at the rate of 7,000 1/hr., maintaining the bottom temperature at 191 DEG  C. and the head temperature at 82 DEG  C.  Cumene was added to the feed at the rate of 250-350 1/hr., at the same time adjusting the temperature at the 17th through 35th trays from the bottom of column at between 130 DEG and 135 DEG  C. (the ratio of phenol to hydrocarbon = 1 :0.33-0.36). The temperature of 40th tray was maintained at 100 DEG  C., and the bottom product contained as little at 60 p.p.m. hydroxyacetone.
Patent GB-890454-A (GB)
Title: Improvements relating to voice-frequency signal detectors
Inventor: KING DANIEL LAWRENCE
IPC: H04Q1/446
Filed: 1959-11-26
Abstract: 890,454. Two-way transmissions. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 10, 1960 [Nov. 26, 1959], No. 40236/59, Class 40 (4). In an arrangement wherein a two-way line L is coupled by way of transformers T1, T3 with an interposed matching attenuator P1 to a reversible amplifier A and a loud-speaker/ microphone LM and by way of a transformer T2 and a matching attenuator P2 to a V.F. receiver D which is required to respond to a release signal, the V.F. receiver is guarded against operation by speech from the instrument LM by a connection through a resistance R11 which supplies currents in antiphase with those induced through the transformer T2. The transformers T1, T2 are given suitable turn ratios and an adjustable resistance RV is provided to obtain a satisfactory balance at the signalling frequency.
Patent GB-973796-A (GB)
Title: A screening and mixing machine for road building materials
IPC: B07B1/46
Filed: 1963-10-14
Abstract: 973,796. Plant for making macadam. C. H. HEISE. Oct. 14, 1963 [April 26, 1963], No. 40390/63. Heading E1T. [Also in Division B2] A screening and mixing machine A, Fig. 1 for road building materials comprises a mixer tower 10 provided with a vibratory screen arrangement including one or more screens 1a, 1b, 1c which serve to separate material according to its grain size and feed it into silos 4, at least one of the screens being provided with a supplementary screen 6, Fig. 2, which is shiftable between operative and inoperative positions. The screens are supported in a box 23 which is suspended by resilient elements 16 and vibrated by an eccentric 3 driven by a motor 2. The supplementary screens are of different mesh sizes and each is formed by two parts 6a, 6b which are pivotable from a vertical position to an operative position where they are hooked together and secured by eccentric means 8a. The grain size can be selected by lowering the appropriate supplementary screens into position. The material is fed to the screens by a bucket elevator B and graded by the screens into four silos 4. It is then metered through gates 18 into a two-compartment hopper 19 having gates 20 for controlling the discharge into a loading slip 21 which is arranged to deliver the material into a pug mill where, if desired, it is mixed with bitumen. In an alternative construction, the pug mill can be arranged in place of the hopper 19 and bitumen applied before passing to the skip.
Patent GB-1198647-A (GB)
Title: Balancing Network
Inventor: WALDELIUS ERIC
IPC: H03H7/38
Filed: 1967-09-05
Abstract: 1,198,647. Balancing network. TELEFONAKTIEBOLAGET L.M. ERICSSON. 5 Sept., 1967, No. 40488/67. Heading H3U. A loaded line, Fig. 3, is balanced by the Hoyt balance, Fig. 2, where the value of C of the Hoyt balance equations is derived either from equation (1):- or from the approximation equation (2):- where C 1 , C 2  &c. are the capacitance values of the sections of the loaded line, a is the line attenuation of each section at the frequency f1/#2, where f 1  is the limit frequency and is equal to 1/##LC, L is the inductance of each loaded line section and m has the preferred value of 0À6. A sufficient number of values C 1 , C 2  &c. is used to obtain the desired degree of accuracy and, generally, it is only necessary to use the values of the first few of the loaded line sections.
Patent GB-1160584-A (GB)
Title: Circular Loom
IPC: D03D37/00
Filed: 1966-09-12
Abstract: 1,160,584. Circular dummy shuttle loom. PELTZER & FILS S.A. 12 Sept., 1966 [17 Sept., 1965], No. 40576/66. Heading D1E. Three warp beams (not shown) supply threads to form three horizontal sheds disposed in a circle, into which dummy shuttles lay weft, the shuttles being loaded with suflicient weft for one pick in one fabric at gaps between the fabrics. Beat-up is effected by toothed wheels (not shown) rolling on the warp at the fell. As a shuttle 47 approaches a weft-supplying station, a follower arm 40 is displaced as shown by a cam lobe on the periphery cf a rotating ring 14 of the loom, thereby acting through a belt 36 to swing a gripper 34 radially inwards; the various wefts protrude from a carrier 30 operated by a pneumatic cylinder 31 and the gripper is closed on to the selected weft by a solenoid 43 energised when a mask 46 on the rotating ring 14 passes between a lamp 45 and a photocell 44. As the ring rotates further, the follower 40 rides off the cam lobe to swing the gripper 34 outwards, whereby the weft lies across the path of the shuttle 47. As the shuttle continues its movement, grooved pulleys 48 on the shuttle pass between stationary pulleys 49 so that the weft, which is between the two sets of pulleys, is drawn into zigzag loops. When sufficient weft for a pick has been collected by the shuttle, the gripper 34 opens, another gripper (not shown) takes hold of the weft at the inner periphery of the shuttle path, and the weft is cut between the latter gripper and the carrier 30; the stationary pulleys 49 move clear of the weft, which is thereby left lying on the flat surface of the shuttle and is paid out as the shuttle passes through the shed. The weft gripper 34 is described and claimed in detail in Specification 1160582; the shuttle and the pulleys 49 are described and claimed in detail in Specification 1160581; Specifications 1169583 and 1160585, which concern the shedding mechanism are also referred to.
Patent GB-1445619-A (GB)
Title: Colour cathode ray tube
IPC: H01J29/07
Filed: 1973-08-29
Abstract: 1445619 Colour television tubes TOKYO SHIBAURA ELECTRIC CO Ltd 29 Aug 1973 [30 Aug 1972] 40579/73 Heading H1D A colour c.r.t. comprises a curved (e.g. spherical or cylindrical) panel with differently coloured phosphor stupes, similarly curved shadow mask 37 with narrow bridge portions 50a, 50b between slits 521, and means for generating three-in-line beams, the bridge portions being parallel to the horizontal axis of the screen, and the phosphor stripes and rows of slits on and near the vertical axis being straight, the remainder of the stripes and rows being outwardly curved in the direction of the horizontal axis, their curvature increasing gradually from centre to periphery. The slits at the corners become parallelograms and Moire effects are avoided. Light absorbing stripes may be included. The arrangement also overcomes corner zig-zag effects for example (Fig. 2, not shown). The bridge portions may be 0À1 mm. in width and the screen produced photographically using an elongate source with a slit (Fig. 4, not shown).
Patent GB-1017737-A (GB)
Title: Improvements in or relating to methods of producing foam for cleaning carpets
IPC: A47L11/34
Filed: 1962-10-29
Abstract: An appliance for preparing cleansing foam for application to a carpet comprises a container closed by a porous cover plate 3 through which extends an air pipe 4 having an extension 5 of reduced diameter depending into shampooing liquid 2 in the container 1.  Air supplied under pressure through the pipe 4 foams the liquid 2 and forces the foam through a porous cylinder 8 and thence through the porous plate 3 and an outlet 10 on to the carpet to be cleaned.
Patent GB-1275414-A (GB)
Title: Improvements relating to the manufacture of grids for the plates of electric storage batteries
Inventor: EVANS JAMES ARTHUR
IPC: H01M4/73
Filed: 1968-08-27
Abstract: 1275414 Rolling battery grids ELECTRIC POWER STORAGE Ltd 26 Aug 1969 [27 Aug 1968] 40945/68 Heading B3M [Also in Division H1 A lead or lead alloy grid 15, for a storage battery plate, comprising a lattice of bars (or a lattice of ribs on a sheet) in which three bars radiate from each junction, two bars making an acute angle with a given direction common to all the junctions and one bar making an obtuse angle may be rolled from sheet metal, the direction of rolling being chosen so that at each junction two bars radiate in the direction of rolling and one bar radiates against the direction of rolling. The rolls are patterned to form the desired grid design.
Patent GB-1071086-A (GB)
Title: Photographic processes
IPC: G03C8/52
Filed: 1963-10-18
Abstract: 1,071,086. Diffusion transfer processes. INTERNATIONAL POLAROID CORPORATION. Oct.18, 1963 [Nov. 1, 1962], No.41273/63. Heading G2C. In a process in which colour diffusion transfer images are formed by developing an exposed silver halide emulsion in the presence of a diffusible colour image-forming substance e.g. a dye developer which provides an imagewise distribution of diffusible colour image-forming substance and transferring at least a part of said substance from the undeveloped areas to an image receiving layer by means of an alkaline processing composition, there is used as image receiving layer an alkali permeable dyeable layer backed by a polymeric acid layer. Specified polymeric acids are cellulose acetate hydrogen, phthalate/glutarate/succinate, ethyl cellulose hydrogen succinate; ethyl cellulose acetate hydrogen succinate, cellulose acetate hydrogen succinate hydrogen phthalate, ether and ester derivatives of cellulose modified with sulphoanhydrides, polystyrene-sulphonic acid, carboxy methyl cellulose polyvinyl hydrogen phthalate, polyvinyl acetate hydrogen phthalate, polyacrylic acid, acetals of polyvinyl alcohol with carboxy or sulpho-substituted aldehydes and partial esters of ethylene/maleic anhydride or methyl vinyl ether/maleic anhydride copolymers. The polymeric acid layer may contain a cellulose ester e.g. cellulose acetate. A spacer layer e.g. gelatine, polyvinyl alcohol or partial acetals of polyvinyl alcohol may be provided between the polymeric acid layer and the dyeable layer. Specified alkali permeable dyeable layers are polyvinyl alcohol and gelatine. Said dyeable layers may contain a mordant e.g. poly-4-vinyl pyridine, and 1-phenyl-5-mercapto-tetrazole. The whole may be carried on a support e. g. baryta paper or glass. The polymeric acid layer may contain titanium dioxide, imidazole or arbutin.
Patent GB-1361830-A (GB)
Title: Dynamo-electric machines including bonded commutators
IPC: H01R39/04
Filed: 1971-09-07
Abstract: 1361830 Commutators for dynamo-electric machines GENERAL ELECTRIC CO 7 Sept 1971 [1 Oct 1970] 41613/71 Heading H2A A dynamo-electric machine comprises a commutator including a base member having two portions 22, 24 of different diameter, the larger diameter portion 24 having a planar end surface 24a to which the ends of the commutator segments 18 are adhesively secured. The base member may be of metal such as aluminium, cast iron, steel, brass, bronze or alloys of these metals. A ceramic or reinforced organic insulating coating is applied to the surface of the base member. A preferred material is plasma sprayed alumina. Alternatively, the base member may be made of a non-metallic material such as a ceramic or a reinforced plastics material, e.g. phenolic asbestos, polyimide glass or epoxy glass. The segments 18 may be made of copper, zinc coated copper or aluminium. The adhesive, which is electrically non-conductive and secures the segments to the surface 24a and to the surface 22a of portion 22 of the base member, may be an epoxy or polyimide material. The enlarged diameter portion 24 of the base member prevents mechanical damage to those ends of the segments remote from the rotor winding.
Patent GB-1064143-A (GB)
Title: D.c. amplifier
IPC: H03F3/387
Filed: 1963-10-23
Abstract: 1,064,143. Semi-conductor amplifier circuits; amplitude modulation systems. ZAVODY PRUMYSLOVE AUTOMATISACE NARODN1 PODNIK. Oct. 23, 1963 [Oct. 25, 1962], No. 41740/63. Headings H3R and H3T. A push-pull D.C. amplifier comprises two networks each comprising an oscillator formed by an A.C. amplifier 2 with a feedback circuit which includes a resonant circuit TR 2  and a capacity bridge 1 to control the feedback factor. The amplitude of oscillation is controlled by the D.C. input signal applied at terminals S 3  S 4  and a bias derived by rectifying the output of transformers TR 1 , which together vary the capacitance of diodes D 1 , D 2  in bridge 1. The resulting oscillatory signal is rectified by diodes D 3 , D 4  to provide a D.C. output at terminals S 1 , S 2 .
Patent GB-1439889-A (GB)
Title: Assembly of loops for suspending sausages
IPC: A22C11/12
Filed: 1974-09-25
Abstract: 1439889 Sausage suspending loops H NIEDECKER 25 Sept 1974 [17 Oct 1973] 41781/74 Heading A2B [Also in Division B8] Suspending loops for sausages are attached to a belt 2, 3 in such a way that portions of the loops protrude from either side of the belt. The belt may comprise two strips 2, 3 of paper or plastics material holding the loops between them, and may be formed with regularly spaced holes 4 to receive a driving element. The assembly of belt and loops may be stored on a bobbin and supplied to a sausage sealing machine. In a modification, two parallel belts may be present.
Patent GB-1190090-A (GB)
Title: Production of Aromatic Carboxylic Acid Nitriles
IPC: C07C255/49
Filed: 1967-09-14
Abstract: 1,190,090. Aromatic carboxylic acid nitriles. BADISCHE ANILIN- & SODA-FABRIK A.G. 14 Sept., 1967 [15 Sept., 1966], No. 41975/67. Heading C2C. The invention relates to an improvement in a process for the production of an aromatic carboxylic nitrile by contacting a N-formylated primary aromatic monoamine having a melting point above 80‹ C. with a wide pored i.e. having more than 50% of its pores of a radius of 10 to 200 A catalyst active silicic acid gel or silicate having an internal surface area of less than 550 sq.m./g. in which the monoamine is dissolved in a fatty acid nitrile having 2 to 4 C atoms, a benzene carboxylic acid nitrile having seven to nine carbon atoms a formyl compound of a primary alkylamine having 1-3 C atoms or a formyl compound of a primary aromatic monoamine having six to eight carbon atoms (which is different from the formyl compound to be reacted) and supplying the resultant solution to the catalyst zone. The reaction is preferably conducted in the presence of an inert gas. In an example a liquid mixture of N-formyl-2,4-dimethyl aniline and benzonitrile is passed down a heated tube filled with clay rings in the lower and upper parts and with catalyst in the middle in the presence of nitrogen and 2,4-dimethyl benzonitrile is obtained.
Patent GB-1077966-A (GB)
Title: Hinge fitting for a seat and back rest
IPC: A47C1/027
Filed: 1965-10-05
Abstract: 1,077,966. Hinges. RECARO A.G. Oct. 5, 1965 [Oct. 16, 1964], No. 42188/65. Heading E2F. A back rest attachment 1 of a hinge for angularly adjustable vehicle seats is unlocked for adjustment from the position shown by raising a lever 14 on the seat attachment 3 against a spring 15, thereby clearing a flexible locking belt 7 of trapezoidal cross-section from frictional engagement with the internal surfaces of a trapezium shaped peripheral groove in a disc 2 coaxial with the hinge pivot 4 and secured to the seat attachment 1. The belt terminates in upper and lower eyelets 8, 9, the former being secured by a pin 10 to the seat attachment 3, to which the lever 14 is connected by a pin 13, while eyelet 9 is secured to an extension 12 of the lever by a pin 11. Movement of the back rest rearwardly is resisted when the lever 14 is in the locked position, though the back rest may be tilted forwardly without raising the lever. Various modifications of the way in which the belt 7 may be locked are disclosed. In Figs. 4-6 (not shown) the ends of the belt are connected to the lever by a spring assisted and pivoting slide, while in Figs. 7-9 (not shown), the lower part of the belt is made longer than the upper part and is stretched in the locked position over a tightening pivot arm (212) (Fig. 7) connected to the lever. In Figs. 10, 11 (not shown) a yoke (335) slides over the ends of the belt, the lower end of which is stretched over a pivoted extension arm (312) (Fig. 10) of the lever, while in Figs. 12-16 (not shown) the width of the yoke (435) is adjustable. In every embodiment a spiral spring 6 between the seat attachment 1 and the pivot 4 urges said attachment forwardly, the tension spring 15 being sufficient to resist such forward motion. The flexible belt 7 may be strengthened by longitudinally running peripheral steel wires or may be glued or moulded to an outer steel band; alternatively it may have a flexible core encased by inner and outer integral steel bands, Figs. 17, 18 (not shown), while in Figs. 19, 20 (not shown) the belt is a flexible steel band having rubber strips on the inclined surfaces thereof. Finally the band may be a circular wire. Hinge fittings on both sides of the seat may have a common pivot axis with which is coaxial an enclosing rod or pipe. One hinge fitting only has the locking device.
Patent GB-1049776-A (GB)
Title: Improvements in or relating to false twisting apparatus
Inventor: MATTINGLY DENIS ALBERT EDWARD
IPC: D02G1/06
Filed: 1961-11-24
Abstract: 1,049,776. False twisting. KLINGER MANUFACTURING CO. Ltd. Feb. 19, 1963 [Nov. 24, 1961], No. 42216/61. Heading D1D. In a false twist tube 10 the elements about which the yarn is wrapped comprise at least two spaced non rotatable pins 17, 18 arranged transversely of the axis of rotation of the tube. As shown in Fig. 1 the pins are mounted across a slot formed in the head of the twist tube. The axes of the pins may, as shown in Fig. 1, be parallel with and one above the other or they may be inclined, crossing on the axis of the tube when viewed along this axis; alternatively they may be parallel and lie in a plane at right angles to the axis of the tube; they may be cylindrical or waisted as shown in Fig. 1. The slot in the head of the tube may be rectangular as in Fig. 1 or it might be V-shaped to facilitate threading up. In other forms the head of the tube is cup shaped with the slot cutting through the rim of the cup. To lighten the tube its head portion may be upwardly tapered while bridging pieces may be fixed across the slot to prevent splaying of the head at high rotational speeds. The pins are preferably formed from saphire.
Patent GB-850348-A (GB)
Title: Apparatus for fastening a casing such as a sausage casing with staple-like fasteners
Inventor: TIPPER MAYNARD J G
IPC: B65B51/04
Filed: 1958-12-31
Abstract: 850,348. Closing bags and tubular casings. TIPPER TIE PRODUCTS OF N. J. Inc. Dec. 31, 1958, No. 42255/58. Class 94(1). In a modified version of the apparatus for applying a closing staple to a sausage casing end, bag neck or the like, described in Specification 838,044, one side of the channel in which the staple driver 7 reciprocates is constituted by a lever 20, the closing of which gathers in the bag neck &c., and actuates a valve 33 applying pressure air to the driver operating means. The gate 38 shielding the lower die 54 is held raised by a spring 42 and is contacted by a vertically sliding plate 10. A pin 14 on the driver engages a projection 50 on this plate to carry it downwards during the clinching stroke with consequent lowering of the gate. As the driver rises, a friction plate 17 retards the return of the plate 10 until an upper projection 13 is contacted by the rising pin 14.
Patent GB-878116-A (GB)
Title: Improvements in or relating to potentiometers
Inventor: COVINGTON JOHN HENRY
IPC: H01C10/30
Filed: 1959-12-11
Abstract: 878,116. Potentiometers. WELWYN ELECTRIC Ltd. Dec. 11, 1959, No. 42261/59. Class 37. A potentiometer adapted for bush mounting has the housing 1 and bush 2 formed by moulding them integrally from the same plastic material, the bush having a thread 3 cut by a selftapping nut 5. The hollow cylindrical bush 2 provides a bearing for the operating spindle of the potentiometer. The material used may be polystyrene, polythene, polycarbonate, polytetrafluorethylene or nylon.