baber/WOPTO huggingface dataset:
Patent GB-728864-A (GB)
Title: Improvements in or relating to internal shoe-drum brakes
IPC: F16D51/66
Filed: 1953-03-12
Abstract: 728,864. Internal shoe-drum brakes. BRISSON, L. C. March 12, 1953 [March 19, 1952], No. 6859/53. Class 103 (1). In a braking device comprising two assemblies of shoes capable of co-operating with the brake drum, the first one being constituted by at least one starting shoe and the second by one or several braking shoes, the starting or driving shoes being acted upon by a controlling device and being connected to the device for the application of the braking shoes by means of a geared-down transmission mechanism which comprises a floating member 9 provided with shoulders against which bear pins 7, 8 carried along by the starting shoes 5, 6 and also provided with shoulders against which bear the ends of reducing levers 10, 11, the other ends 14, 15 of which bear against the braking shoes 16, 17, this transmission mechanism coming into action in one direction of running. In operation, in the forward direction indicated, the controlling device, constituted by a hydraulic cylinder 3 secured to a floating frame 2, operates to apply the starting shoe 6 against the rotating drum 20 and owing to the force exerted between the frame 2 and the shoe 6, the shoe 5, which is directly solid with the frame 2, is applied by the reaction against the drum 20 with equal pressure, thus both shoes 5 and 6 and consequently the frame 2 rotate with the drum. Through the intermediary of pins 7 and 8, solid with frame 2, the intermediate floating member 9 is carried in the same direction, the shoulders of which exert a thrust on the ends 23 and 24 of reducing levers 10 and 11, which are pivoted at 12 and 13 respectively to the stationary back plate 1 causing their ends 14 and 15 to press against one end of the braking shoes 16 and 17, resulting in their application against the brake drum. Eccentrically mounted stops 18 and 19 are provided for adjustment of the braking shoes 16 and 17 respectively. Centring of the frame and adjustment of the starting shoes 5 and 6 is achieved by an eccentric 21 together with a cam 31. The device may also be hand-controlled by means of the members 30, 29, 33, 35 disposed externally of the brake drum to operate the cam 31. In the reverse direction, the starting shoes 5 and 6 are applied, as before, against the brake drum but, as the rotation of the drum is in the reverse direction, the frame 2 tends to turn in the reverse direction to the preceding case and the two stops 4 and 4<SP>1</SP> secured to the floating frame 2, press directly on portions 27, 28 of the levers 10, 11 which turn about their pivots to apply the braking shoes 16 and 17 respectively.
Patent GB-350005-A (GB)
Title: Improvements in and relating to metallic vapour rectifiers
IPC: H02H7/12
Filed: 1930-03-03
Abstract: 350,005. Rectifying alternating current. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. March 3, 1930, No. 6905. Convention date, March 20, 1929. Addition to 279,045, [Class 38 (ii), Electric currents, Converting &c.]. [Class 38 (ii).] Vapour apparatus, arrangements of.-In metallic vapour rectifier installations in which a polyphase rectifier is provided with means for suppressing back ignitions as described in the parent Specification and wherein the rectifier 2 operates in parallel with another source of direct current 4, an automatic switch 5 adapted to open in the event of reverse current, current flowing to the rectifier is provided in the connection between the rectifier and the source 4 thus introducing a resistance 6 sufficient to extinguish the reverse arc, the switch then closing automatically. Opening is effected by a coil 7 in the connection between the rectifier and the source 4, whilst a coil 8 in series with the resistance 6 maintains the switch open until the reverse current falls to zero. In a modification (Fig. 4, not shown), the switch is adapted also to connect a resistance in parallel with the rectifier. The Specification as open to inspection under Sect. 91 (3) (a) states that the switch 5 may break the connection between the rectifier and the source 4, the resistance 6 being dispensed with. This subject-matter does not appear in the Specification as accepted.
Patent GB-1125680-A (GB)
Title: Improvements in pneumatic tire compositions
IPC: C08L21/00
Filed: 1967-02-14
Abstract: 1,125,680. Compositions containing EPDM rubber. UNIROYAL Inc. 14 Feb., 1967 [4 March, 1966], No. 6973/67. Headings C3P and C3Q. A composition suitable for forming the sidewall portion of a tyre comprises a blend of one or more elastomers with a terpolymer of two different alpha-monoolefins and dicyclopentadiene, there being 10 to 35 parts of terpolymer in 100 parts of total elastomer. The other elastomer may be natural rubber, polyisoprene, a mixture of neoprene rubber and natural rubber, a mixture of SBR and natural rubber, a mixture of polyisoprene and neoprene rubber, and a mixture of chlorosulphonated polyethylene, natural rubber and neoprene rubber. Fillers and vulcanizing agents may be present. The composition does not require any additional antiozonant. The EPDM elastomer may be oilextended.
Patent GB-195253-A (GB)
Title: An improved tobacco pipe
IPC: A24F5/00
Filed: 1922-03-09
Abstract: 195,253. Crook, C. March 9, 1922. Tobacco pipes.-In tobacco pipes having a de- 'tachable bowl a with a part-spherical base-perforated at b and having also narrow bores g, i in the stem and mouthpiece connected by a chamber h, the bowl c into which the bowl a is screwed is provided around the top with a metal or other band e to prevent it from cracking or unduly expanding.
Patent GB-115633-A (GB)
Title: Improvements in or relating to Ships.
Inventor: MYRON FRANCIS HILL
IPC: B63B3/22
Filed: 1918-04-25
Abstract: 115,633. Hill, M. F. April 23, 1917, [Convention date]. Frames and framing; plates and plating; compcurtments.-A method of building oceangoing ships consists of producing large cast metal unit sections, each having integral shell and rib or frame portions, and subsequently joining these units together by electric arc welding, or otherwise, to obtain strong joints. Fig. 5 indicates a section for a single-skin ship with a frame or rib part 15 located between the edges. Fig. 9 shows a bottom section for a double-skin ship with a portion of the hollow keel. The plating may be strengthened by ribs or corrugations 20 on the inner surfaces ; these ribs also facilitate the flow of metal during casting. The edges of the sections are formed or fitted with fingers 44, 45, Fig. 12, to guide the plates into correct register with each other, edge to edge. Ships so constructed may be subdivided by longitudinal and transverse bulkheads 35, Fig. 7, and decks 34, and provided with solid or hollow bilge keels 36, lower deck openings 38, and man-holes 33 for access by the welder to the space between the two skins.
Patent GB-685279-A (GB)
Title: Crisper pan structure for refrigerators
IPC: F25D25/02
Filed: 1951-03-27
Abstract: 685,279. Refrigerators. MOTOR PRODUCTS CORPORATION. March 27, 1951 [Oct. 23, 1950], No. 7086/51. Class 29 A crisper pan arranged beneath a glass shelf 22 terminating short of the front of the food storage compartment 10 of a refrigerator comprises an open top pan 20 located directly under the shelf and an auxiliary pan 50 with a hinged cover 70 located forwardly of the front edge of the shelf so that small articles may be placed in the crisper pan without withdrawing it. The auxiliary pan 50 is open at the rear and attached to the main pan 20 by screws 64 taking into thickened ribs 62 in the side walls of the auxiliary pan. The transparent cover 70 formed of plastic material has integral hinge pins 74 which pass through holes in ears 78 on the side walls of the auxiliary pan which walls ate forced apart to admit the pins before the auxiliary pan is fixed to the main pan. A handle 80 is provided on the front wall of the auxiliary pan. The pan 20 slides in guides 38 at the lower part of the side walls of the food compartment.
Patent GB-1387011-A (GB)
Title: Process for the physical and chemical properties of polyvinylchloride
IPC: C08K5/053
Filed: 1972-02-16
Abstract: 1387011 Polyvinylchloride compositions DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 16 Feb 1972 [16 Feb 1971] 7098/72 Heading C3P A composition comprises polyvinyl chloride, 20 to 100 parts per 100 parts of polyvinyl chloride of synthetic silicon dioxide, and a polyhydric alcohol. The silicon dioxide may be prepared pyrogenically from silicon halides or by precipitation with acid from alkali metal silicate solutions or by hydrolysis of suitable compounds. The polyhydric alcohol is pre-mixed with an equal quantity of the silicon dioxide before mixing into the composition. In examples polyvinyl chloride is compounded with dioctyl phthalate, di-n-octyl-tin mercaptide, epoxidized soya oil, metal stearates and oils, hexane triol and silicon dioxide. Comparative examples using ground chalk instead of silicon dioxide are also described.
Patent GB-851093-A (GB)
Title: Ring guide for freshly extruded film tubes
IPC: B29C48/03
Filed: 1959-03-02
Abstract: <PICT:0851093/IV(a)/1> <PICT:0851093/IV(a)/2> Apparatus for making tubular film by the trapped bubble process comprises, in association with a tube-forming plastics extruder and a pair of pinch rolls disposed with their nip centres transversely on the extrusion centre-line, a metal ring of internal diameter greater than that of the orifice of the tube-forming extruder but smaller than that of the inflated film tube to be produced in the apparatus, said ring having a smooth bead circumferentially disposed along one edge of the inner face of the ring to provide a single, circumferential line of contact between the ring and the inflated tube, the surface of said bead consisting of a layer of a solid inert polymer of the recurring structure -(CF2-CFX)n-in which X is chlorine or fluorine, the ring being mounted coaxially with the tube-forming extrusion die and spaced therefrom a short distance to serve as a guide for the inflated film during operation of the apparatus. The film-contacting surface of the guide ring may consist of a thin layer or coating of polytetrafluoroethylene or polymonochlorotrifluoroethylene.  The guide may be hollow and cooled by the circulation therethrough of a heat-exchange medium. As shown in Fig. 1, plastic film tube 7 is extruded through a die 4 having an annular orifice 6 coaxial with an extrusion centre-line 8 passing longitudinally through the centre of the die.  Air or other gas is introduced into the tube through a passageway 5 in the die 4, and the tube 7, is withdrawn from the die by the pinch rolls 11 through a guide ring 9 which centres the expanding tube about the extrusion centre-line.  After being oriented by the distending gas bubble 32, the tubular film is drawn by the pinch rolls 11 through the collapsing guides 10.  As shown in Fig. 3, the ring 9 comprises a steel housing 12 of generally rectangular cross-section within which is provided an inner circumferential film-contacting guide bead 20 coated with a layer 21 of polytetrafluoroethylene about 0,001 inch thick.  The coating facilitates the passage of the film tube through the guide. Specification 823,011 and U.S.A. Specification 2,461,975 are referred to.
Patent GB-665642-A (GB)
Title: Two-way plow
IPC: A01B3/46
Filed: 1949-03-16
Abstract: 665,642. Invertible ploughs. PURSCHE, H. A. March 16, 1949. No. 7202/49. Class 6(i). A tractor-mounted invertible plough comprises a longitudinal tubular beam 12 on which is rotatably mounted a carrier 23 for right- and lefthand shares 29, 30, the front end of the beam being secured to a cross-tube 13, of which the ends are carried by a frame 20, 21, 22 adapted to be slung below the tractor chassis and to be lifted and and lowered by hydraulically-operated lift arms 54. The shares are reversed by a double - acting hydraulic cylinder 42 on the cross-tube 13: cables 35 pass from fixed points on the tube, around pulleys 36, 37 on the ends of the piston rod 38, and are wound around a drum 34 integral with the carrier 23. An arm 45 on the carrier limits its movement by coacting with fixed hook-like projections 46, 47, on the frame. The frame includes pairs of parallel arms 19, 21, 22, terminating in cross-bars 69, 72. The framework 19, 69 forms the draught frame 20, coupled at 71 to the tractor draw-plate. The cross-bar 72 couples the arms 21, 22, to a manually-adjustable crank 78 on the tractor, by means of which the tilt of the plough-shares can be altered. The rear portions of the arms 19 are supported by chains 65 from bell-cranks 54 acted on by a hydraulic cylinder 55. To maintain the shares at a constant cutting depth, a wheel 93 is mounted on an arm 95 to run on unploughed land ahead of the shares. The arm 95 is pivoted at 96 on a plate 97 and is fixed by adjustable stops 98. Alternatively, the shares themselves may carry adjustable skids or shoes 90 to run along the furrow bottoms for the same purpose.
Patent GB-1503075-A (GB)
Title: Lepidine(thiono)(thiol)-phosphoric(phosphonic)acid esters process for their preparation and their use as insecticides
IPC: A01P7/04
Filed: 1976-02-24
Abstract: 1503075 Phosphorus-containing lepidine derivatives BAYER AG 24 Feb 1976 [25 Feb 1975] 07208/76 Heading C2P The invention comprises compounds of the general formula wherein R 1  is C 1 -C 6  alkyl or alkoxy, phenyl or n-propylmercapto, R 2  is C 1 -C 6  alkyl and X is H or Cl. They may be obtained by reacting an ester halide (R 1 )(R 2 O)P(O)(or S)Cl with a compound  in the form of an alkali metal-, alkaline earth metal- or ammonium salt, or in the presence of an acid acceptor. The products have insecticidal acaricidal and fungicidal properties and may be used as active ingredients in conventional pesticidal compositions.
Patent GB-1376065-A (GB)
Title: Crystalcontrolled oscillators
IPC: G04F5/06
Filed: 1972-02-16
Abstract: 1376065 MOST crystal oscillators SESCOSEM SOC EUROPEENNE DE SEMICONDUCTEURS ET DE MICROELECTR ONIQUES 16 Feb 1972 [17 Feb 1971] 7273/72 Heading H3T [Also in Division G3] A crystal controlled oscillator comprises a MOS field-effect transistor M1 for operating in a self sustaining oscillatory condition, a crystal wafer 1 for determining the frequency of the oscillator and provided with two electrodes connected to the gate and drain of the MOST M1, a load element M2 connected to the drain of the MOST M1 and a circuit for starting the self oscillation condition incorporating at least two MOS field effect transistors M3, M4 connected to the two electrodes of the crystal 1. The MOST's M3, M4 ensure a conduction voltage on the gate of the MOST M1 at least equal to the linearity threshold voltage of M1 for linear operation. If on starting the gate-substrate capacitance of M1 is charged so that the gate is negative, M1 and M4 conduct and the transistor M1 starts linear operation to produce oscillation and then operates in the class C amplifier mode to maintain oscillation. If on starting the gate of M1 is not charged M1 and M4 are blocked, the gate capacitance of M3 is charged, and M3 conducts to bias the gate of M1 so that M1 temporarily operates in the linear region to start oscillation and then operates in the class C region to maintain oscillation with a reduction in supply voltage. Once oscillation has started the transistors M3, M4 operate equivalent to a diode to limit the oscillations. Further the transistors M3, M4 act as a protective diode for static charge accumulation at the gate of a MOST which could cause destructive perforation of the insulating layer of the MOST gate. The oscillator may be in integrated circuit form and may be used in an electronic clock.
Patent GB-401665-A (GB)
Title: Improvements in the application of colour to cellulose ester or ether materials
Filed: 1932-03-11
Abstract: Cellulose esters or ethers, dyeing; printing; dye preparations.--Cellulose ester or ether materials are dyed or printed in permanent colours by applying thereto water insoluble dyestuffs in aqueous media in presence of an a -mono- or a -g -diaryl or aralkyl ether of glycerol.  Specified ethers are the a -mono-phenyl, a -mono-o-tolyl, a  : g -diphenyl, a  : g -di-o-tolyl, a  - g -di-m-tolyl and a  : g -dibenzyl ethers. The ether or an aqueous emulsion thereof, e.g. an emulsion made by adding the ether to an aqueous solution containing gum senegal, stearic acid and ammonia, may be incorporated with the dyestuff paste prior to its addition to the printing paste or dyebath.  The following examples are specified:--(1) Printing pastes are prepared containing dark British gum thickening, soluble oil and glycerol and either (a) Duranol brilliant blue G and an emulsion of glycerol - a  : g -di-o-tolyl ether, (b) Duranol red X 3 B S and glycerol - a  : g -di-o-tolyl ether, or (c) Duranol green B S and glycerol - a  : g  - dibenzyl ether.  (2) A mixture of Duranol brilliant blue G and an emulsion of glycerol - a  : g  - di-o-tolyl ether is concentrated on the water bath and added to a printing paste.  Acetate artificial silk may be printed with any one of the above pastes, dried, steamed for 5 minutes at 101--102 DEG  C., rinsed and dried.
Patent GB-713644-A (GB)
Title: An improved ground covering apparatus
IPC: E01C5/10
Filed: 1951-03-30
Abstract: 713,644. Aircraft runways; paving slabs. SOC. ANON.-DES BETONS DUROC March 30, 1951 [April 21, 1950], No. 7400/51. Classes 87 (1) and 107 An aircraft runway or the like comprises pairs of sets of reinforced beams 1, preferably of prestressed concrete located in end to end relationship each set of beams including a plurality of beams in side by side relationship and having some of the beams with end portions projecting beyond the others of the set, to form a broken edge which can mate in the complementary space formed in the end of the other set. The junction of the sets of beams 1 is shown as castellated, but it may be of zig-zag or other shape. The beams of each set are connected laterally by stays 2 and inserts 3 engage the channels cut in the side of each beam to unite the beams of a set. The individual sets of beams are connected by split inserts 4-4' with a key 5 to spread the local stresses. The whole assembly may be united by stretched cables. Heating means may be incorporated in the assembly and the running surfaces of the beams may be indented to break ice forming thereon and to improve adhesion of tyres.
Patent GB-227019-A (GB)
Title: A new or improved process for separating fuel from furnace residue, ashes, clinker, and like material
IPC: B03C1/30
Filed: 1924-03-24
Abstract: 227,019. Thompson, H. H., Davies, A. E., and Box, W. E. March 24, 1924. Magnetic separators.-In a process for separating fuel from furnace residues, ashes &c. the material to be treated is passed over a surface which is under the influence of a magnetic field and a powerful air current is positively directed. on to said surface to assist in the separation of the magnetic particles. The material is. fed on to a belt a passing over a magnetic drum or pulley b and an air current is directed on to the belt a from an arcuate cowl d secured to the upper end of a duct f mounted on a centrifugal fan e, the current being controlled by a valve f<1>. Before separation, the material may be ground. to such a degree of fineness that the fuel and the slag &c. are rendered mechanically independent, and the separator may be provided with two or more fields of different intensity so that the. non-magnetic, the feebly magnetic and the strongly magnetic materials may be received in separate receptacles such as m, n and p. Speci. fications 150,333 and 152,642, [both in Class 50, Fuel, Manufacture of], are referred to.
Patent GB-712515-A (GB)
Title: Process of fractionating purified tuberculins
IPC: A61K39/04
Filed: 1952-03-21
Abstract: Purified tuberculin, e.g. as produced according to Specification 712,514, is treated with 90 per cent aqueous phenol at a temperature higher than that of crystallization of the mixture, and the mixture centrifuged leaving an insoluble fraction which can be used as an antigen for hemo-agglutination purposes, and a dissolved protein fraction which is precipitated if desired, fractionally, by 96 per cent alcohol and has intense tuberculinic properties.  All fractions are washed with alcohol, then with acetone, and dried under vacuum.
Patent GB-660064-A (GB)
Title: Improvements in and relating to alternating current generators
IPC: H02K16/00
Filed: 1949-03-18
Abstract: 660,064. Alternators. BRITISH THOMSONHOUSTON CO., Ltd., CLARK, L. J., and PITSTOW, D. J. Feb. 6, 1950 [March 18, 1949], No. 7445/49. Class 35. A dynamo-electric machine comprises a pair of stators 3, 4, one of which 4 has a D.C. excited winding 10 and the other 3 has a polyphase generating winding 11, and a pair of rotors 5, 6 electrically and mechanically connected together. The stators 3, 4 cooperate magnetically respectively with the rotors 5, 6 which are rotated by a common shaft 2. As the A.C. produced in the rotor 6 is fed to the other rotor 5 via connectors A, B, C, A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP>, an alternating E.M.F. is induced in the winding 11 of the stator 3. The windings of the two rotors are cross-connected and consequently the frequency of the E.M.F. induced in the winding 11 corresponds to twice the frequency that which would be obtained from an ordinary single machine having the same number of poles and running at the same speed. Fig. 2 shows how the squirrel cage windings of the two rotors 5, 6 are arranged and interconnected.
Patent GB-261605-A (GB)
Title: Improvements in electric rheostats, potentiometers and the like
IPC: H01C10/34
Filed: 1926-03-17
Abstract: 261,605. Harkness, W. F., and Davies, F. March 17, 1926. Variable resistances.-Contact is made with a helicallycoiled wire by a resilient metal member pressed against the wire by a wiper on a rotating arm. In the arrangement shown the resilient member consists of a disc e arranged behind the wire a and pressed against it by a wiper h on an arm g carried by a spindle d. The spindle d can be moved longitudinally so as to raise the wiper h from the disc e and break the circuit, and can be held in either the " on " or " off " position bv a spring engaging with one of two grooves in the spindle. In a modification the disc e is replaced by a strip of metal surrounding the wire and pressed radially inwards by a chamfered wiper.
Patent GB-1044741-A (GB)
Title: Apparatus for depositing a measured quantity of filling for incorporation in machinery for the manufacture of cakes, pies and analogous confectionery
Inventor: BURGESS LESLIE NORMAN
IPC: A21C9/04
Filed: 1964-02-22
Abstract: 1,044,741. Delivering measured quantities of fluent solid materials. BURGESS ENGIN. EERING (STOKE-ON-TRENT) Ltd. May 19. 1965 [Feb. 22, 1964], No. 7480/64. Addition to 999,022. Heading B8N. An apparatus for dispensing a measured quantity of " filling " in a machine for making cakes or pies, comprises one or more measuring chambers mounted in a table 13 which is adapted to be reciprocated under the outlet from a hopper 11 for the " filling " material, the bottom or bottoms of the measuring chambers being normally closed by a movable closure plate such that in one position of the table the chambers are filled and in another position the closure plate is moved to open the chambers so that the " filling " is  deposited on to a sheet of dough 10. The closure plate is guided in slides under the table 13 and is normally held by springs 151 in the closed position shown in Fig. 5 in which " filling " falls from the hopper 11 into the measuring chambers. Upon movement of the table under the action of a gear-and-crank drive mechanism 18, 20, 21 to the position shown in Fig. 4, levers 161, 162 connected to the plate and pivoted on the table are arranged to abut adjustable stops 17 thereby sliding the plate from below the measuring chambers and allowing the " filling " to fall on to the sheet of dough.