baber/WOPTO huggingface dataset:
Patent GB-601587-A (GB)
Title: An improved process for the manufacture of rubber-like polymeric materials
IPC: C08F36/04
Filed: 1943-05-28
Abstract: Copolymers of a diolefine hydrocarbon and an acrylonitrile having the general formula <FORM:0601587/IV(a)/1> where R represents hydrogen or a methyl or ethyl radical, and containing more than 35 per cent of combined nitrile are prepared by the copolymerisation in aqueous emulsion of mixtures of said diolefine and nitrile, wherein the overall proportion of nitrile is above 40 per cent by weight of the total reactants, by adding initially 25 to 75 per cent of the total diolefine to the polymerisation mixture containing all the nitrile in aqueous emulsion and adding the remainder of the diolefine hydrocarbon in two or more portions after conversion of at least a portion of the initial charge has been reached.  Desirably, 50 per cent at most of the total diolefine is added initially.  The usual per-oxygen compounds may be used as catalysts and aliphatic mercaptans containing at least 6 carbon atoms may be present as modifiers; the reaction mixture normally contains an emulsifier. Synthetic rubbers are prepared by compounding the copolymers (see Group V) and curing.  In examples: (1) a 50/50 butadiene-acrylonitrile mixture is copolymerised as above, 75 per cent of the diene being added initially and the remainder in equal portions after 30 per cent and 55 per cent conversion yielding a copolymer containing 41.5 per cent nitrile whereas a copolymer obtained in the same manner but with all the diene added initially yields a copolymer containing 39.3 per cent nitrile which is less resistant to oils; (2) butadieneacrylonitrile polymers containing 50.6 per cent and 48.4 per cent nitrile from 65 : 35 nitrilediene mixtures and a copolymer containing 46 per cent acrylonitrile from a 60/40 mixture are obtained similarly and a comparison is made with a copolymer prepared from a 60 : 40 acrylonitrile-butadiene mixture, all the diene being present initially.  Other dienes mentioned are p butadiene-1 : 3 and homologues such as isoprene, piperylene and 2 : 3-dimethyl-butadiene-1 : 3.  The Specification as open to inspection under Sect. 91 is not limited as regards the overall proportion of nitrile in the total reaction mixture and the proportion of diene to be added initially.  This subject-matter does not appear in the Specification as accepted.ALSO:A synthetic rubber composition comprises a copolymer of a diolefine hydrocarbon and an acrylonitrile of the general formula <FORM:0601587/V/1> , where R is hydrogen or a methyl or ethyl radical, containing more than 35 per cent of combined nitrile and prepared in the prescribed manner (see Group IV(a)), and stearic acid, sulphur, zinc oxide, carbon black, wood resin, coal tar, "Altax" (R.T.M.), and diphenylguanidine.
Patent GB-176681-A (GB)
Title: Improvements in wood skewers for meat and the like
IPC: A22C17/00
Filed: 1921-03-21
Abstract: 176,681. Webb, S. March 21, 1921. Skewers.-Wood skewers of the kind having longitudinal cutting edges b are made approximately pclygonal in cross-section as shown, some or all of the sides being preferably concave as shown at c.
Patent GB-955653-A (GB)
Title: Improvements in or relating to devitrified glass-ceramics and their production
Inventor: MCMILLAN PETER WILLIAM
IPC: C03C10/00
Filed: 1959-03-13
Abstract: To make a ceramic-glass article by heat treatment of a formed glass capable of controlled vitrification, the glass is made from a batch containing a fluoride in an amount to give in the finished product a weight of fluorine of 0.5 to 2.5% to serve as a nucleating agent. The anions are introduced as a metallic fluoride, preferably one whose oxide forms a major constituent of the glass batch.  The glasses used are those disclosed in Specifications 752,243 and 924,996.
Patent GB-1453117-A (GB)
Title: Particle accelerator system having beam alignment and method of operation
IPC: G21K5/08
Filed: 1974-02-26
Abstract: 1453117 Automatic control of particle beams VARIAN ASSOCIATES 26 Feb 1974 [26 Feb 1973] 8738/74 Heading G3R The orientation of a radiation field produced by the bombardment of a target by a charged particle beam is monitored by a pair of sensors which are responsive to changes in the position on the target at which the beam is incident and the angle of incidence at the target respectively. As shown, particles e.g. electrons from an accelerator 22 pass through beam transport 26 and a bending magnet 30 to a target 12 where X-radiation is produced. The X-rays traverse a primary collimator 14, flattening filter 16, monitoring ionization chamber 18 and movable collimator jaws 20. The chamber 18 has inner and outer quadrant electrodes, Fig. 3 (not shown), which are connected in pairs to differential amplifiers forming signals which are used to control the energization of beam alignment and position adjusting coils 24, 28 so that a desired lobe pattern of X-radiation is produced at the target 12, Fig. 2
Patent GB-137199-A (GB)
Title: Improvements relating to the winding of induction coils
IPC: H01F27/28
Filed: 1919-04-07
Abstract: 137,199. Weatherill, F. April 7, 1919. Transformers. - An induction coil is provided with two primary windings P<1>, P<2> each of which extends over substantially half the length of the iron core A, the windings being arranged in parallel and wound so as to produce similar polarity at each end of the core. The secondary winding is formed in two equal sections S<1>, S<2> connected in series and wound so that the electromotive force impressed on each section acts in the same direction.
Patent GB-731995-A (GB)
Title: Improvements in or relating to sheet feeding apparatus
Inventor: PERRIN JOHN
IPC: B65H3/08
Filed: 1953-03-30
Abstract: 731,995. Feeding sheets. POWERSSAMAS ACCOUNTING MACHINES, Ltd. Feb. 18, 1954 [March 30, 1953], No. 8796/53. Class 100 (1). Sheet-separators.-Sheet-separating apparatus, with special provision for ensuring that only one sheet at a time is separated, comprises a magazine 1 for a pile of sheets 4, a suction device 17 carried by a reciprocating carriage 20 whereby a sheet is detached from the pile and presented between two feed rollers 7, 8 which complete the withdrawal of the sheet, and at least one friction pad 53 which moves into engagement with the bottom sheet to move it laterally of the pile prior to its seizure by the suction device 17. The magazine 1 has front stops 2, and a slotted base 3 whereby the suckers and friction pads can engage the bottom sheet. Three suckers 17 are secured to a hollow tube 18 journalled on the carriage 20; they are oscillated to engage and withdraw the front edge of the bottom sheet by cam and lever means operated from a drive shaft 9, and suction is established to them through a valve also controlled by similar cam and lever means. Further levers operated by cams on the shaft 9 vertically reciprocate a slide 42 on which the carriage 20 is mounted, and the roller 7, and horizontally reciprocate the carriage 20. The roller 8 is continuously rotated by gearing from the shaft 9. There are four friction pads 53 formed of cork and rubber mounted on the carriage 20. In operation, when the leading edge of a sheet has been delivered between the rollers 7, 8, the carriage 20 moves to the left and at the lower level. Before completion of the carriage return stroke, the carriage is raised to the higher level, and the friction pads 53 engage the bottom sheet in the pile and move it back a short distance away from the front stops 2. The suckers 17 are now oscillated to seize the front edge of the bottom sheet and deflect it away from the pile, and the carriage is moved to the right to deliver the sheet between the rollers 7, 8, and then lowered for the return stroke. The roller 7 is lowered on to the rotating roller 8, and the sheet is completely withdrawn from the magazine.
Patent GB-745350-A (GB)
Title: Improvements in or relating to weighing mechanism
IPC: G01G23/32
Filed: 1952-04-07
Abstract: 745,350. Weighing apparatus. BEST, C.. and MOLINS MACHINE CO., Ltd. July 2, 1953 [April 7, 1952], No. 8846/52. Class 143 A reflector is angularly movable with the balance beam and reflects the image of a straight filament of an electric lamp on to a screen. The balance beam is pivoted at 2. Fig. 1, and has rpivoted on it at 5 a depending arm 8 which carries a goods pan 11 on a column 10, and is constrained to vertical movement by being pivoted at 13 on a beam 14 pivoted at 15. The column '10 moves within a casing 110, and portions 111, 109 act as stops to prevent excess movement of the arm 8. Pivots. All pivots are constituted by torsion wires 2, Fig. 4, attached to the beams and led over pulleys 3. attached either to the frame or, for pivots 5, 13, to the arm 8. The torsion wires 2 are tensioned as desired by rotation and subsequent clamping of a differential pulley 28. Damping. The oscillations of the balance beam 1, Fig. 1, are damped by copper loop 18 on the beam and embracing one limb of a magnet 21. Sensitivity. The sensitivity of the balance beam is adjusted by screwing a weight 23, Fig. 1, up or down to vary the centre of gravity of the system. Counterpoise. A weight 25, Fig. 2 can be screwed along the balance beam to adjust the counterpoise. Indicating. A linear source of light 32, Figs. 1 and 2 is imaged by lens system 34 on screen 31, via a mirror 36 on the balance beam, and fixed mirrors 37 and 38, 39, Fig. 3, so as to produce a line of light moving up and down on the screen 31 as the balance beam oscillates. Screen. The screen comprises a ground glass plate 50, Fig. 5, behind which are two plates 51 of one colour transparent material known under the Registered Trade Mark "Perspex", and a plate 52 of the same material but of contrasting colour. Some light from the source 32 is allowed to reach the back of the screen so as to faintly illuminate it. and the plate 52 has its lower edge chamfered and polished to cause light from the rear of the screen to be totally reflected at that point and thus produce a dark area on the screen. In front of the plate 50 is a "Perspex" plate 53 suitably engraved, e.g. with the words "correct weight" located at the lower edge of plate 52 and lit by a light guide 54 from the source 33. Slotted masks 55, 56 as shown in Fig. 6, and a glass cover plate 57 are provided. A prismatic plate 152 causes the light beam from the mirror 39 to be deflected to the direction in which a viewer looks at the screen. Casing. A casing 58, Fig. 1, encloses the whole of the apparatus, the screen lying in a cavity 59 Specification 647,029 and 745,419 [Group XXXIV], are referred to.
Patent GB-731869-A (GB)
Title: Motor-car body with a folding hood
Inventor: AVERY ARTHUR HENRY
IPC: B60J7/12
Filed: 1953-03-31
Abstract: 731,869. Hood linkages. COVENTRY HOOD & SIDESCREEN CO., Ltd. March 29, 1954 [March 31, 1953], No. 8860/53. Class 108 (1). A hood is secured in its erected position by a link 18 pivoted to a member 17 welded to 'the main hoopstick 14 and provided with a slot for engagement with the clamp screw 22 secured to the vehicle body. The slot may provide a cam action to tauten the hood fabric.
Patent GB-943483-A (GB)
Title: Protective apparatus for a food chopper
IPC: F16P3/08
Filed: 1960-03-14
Abstract: 943,483. Machinery guards. HOBART MANUFACTURING CO. March 14, 1960 [March 13, 1959], No. 8890/60. Heading F2J. [Also in Division A4] In a food chopper wherein meat or the like in a feed tube 25 is forced by a power-driven worm 17 past a knife (not shown), a guard 40 positioned over the feed tube 25 is so arranged in relation to the length of the tube 25 that an operator can, as shown, insert his hand horizontally under the guard and reach into the vertical tube 25 by flexing his wrist but cannot, due to the engagement between his forearm and the guard, straighten his wrist and so cannot touch the worm 17. The guard 40, which has central and other apertures as shown, and a depending wall 46, is mounted on four legs 42 over an opening in a pan 30 resting on the feed tube 25. The tube 25 is located on a neck 22 of the chopper housing by upstanding pins. The pan 30 is secured on the top of a motor housing, Fig. 1 (not shown), by latches. Two spring-loaded switches, engaging respectively the pan 30 and tube 25, are arranged in the motor circuit to prevent its operation unless the pan, with its attached guard 40, and the tube are both in position. In a modification, Figs. 5-10 (not shown), for use with existing food choppers, the feed tube is extended above the level of the pan, and has a horizontallyfacing opening covered by a guard similar to the guard 40. The pan rests on an enlarged flange on the feed tube and may be removed over the guard.
Patent GB-594901-A (GB)
Title: Improvements relating to the treatment of materials consisting wholly or partly of wool
IPC: D06M15/643
Filed: 1945-04-11
Abstract: The tendency of materials consisting wholly or partly of wool to shrink is reduced and their abrasion resistance increased by treating them with a solution of a compound having the formula <FORM:0594901/IV/1> in which R1 and R2 are alkyl or aryl groups and X1 and X2 are chlorine or bromine, in a non-reactive solvent. Suitable compounds, which are said to polymerize and deposit a resin on the wool, are dimethyl silicon dichloride, dimethyl silicon dibromide, diethyl silicon dichloride, diphenyl silicon dichloride, cetyl methyl silicon dichloride and methyl phenyl silicon dichloride. The woollen material, which may be treated at any stage from the raw material to the finished yarns, fabrics and garments, is immersed in the solution at raised temperature, removed, the excess solution extracted, immersed in water, removed, dried and, if desired, heated at a temperature of 90 DEG -110 DEG  C.  Examples are given in which wool is boiled in a solution of dimethyl silicon dichloride in carbontetrachloride, removed, squeezed, immersed in water with squeezing and agitation, removed, dried in current of warm air and heated at 110 DEG  C. for half an hour.  The material is finally soaped.  Specifications 561,136; 572,740, 575,675 and 575,696, [all in Group VIII], are referred to.  According to the Provisional Specification, compounds may also be employed in which X1 and X2 are alkoxy groups.
Patent GB-559210-A (GB)
Title: Improvements in razor and blade pack therefor
IPC: B65D83/10
Filed: 1942-07-03
Abstract: 559,210. Safety razors. JACKSON, L. MELLERSH-. (Magazine Repeating Razor Co.). July 3, 1942, No. 9225. [Class 30] In safety razors with a magazine containing blades 10 which are fed one by one to a shaving head, the magazine comprises a casing 26 with a reciprocating plunger 29 and a spring 40 which presses the blades towards the plunger, the stack of blades being held by a clip 19, 20 which is retracted by the plunger whilst the spring engages a shoulder 14 on the bottom blade to retain the blade pack in the handle. The clip has lateral ears 22, 24 and a stop bar 23 to position the blades and has an aperture 25 engaged by a hook 33 on the plunger to retract the clip. The casing serving also as a handle, has a lining 36 retained by a spring lip 39 and provided with an indent engaged by a spring tongue 35 on the plunger to prevent complete withdrawal of the plunger. The lateral margins of the clip on the edge side of the blade may be deflected towards each other. Specification 549,093 is referred to.
Patent GB-557991-A (GB)
Title: Improvements in and relating to mooring cables and cable attachments for marine mines
IPC: F42B22/42
Filed: 1942-07-04
Abstract: 557,991. Anchored marine mines. POWER, R. F. July 4, 1942, No. 9275. [Class 9 (ii)] A device for use in mine-mooring cables to allow passage of a sweep wire therethrough without severing it, comprises two relatively sliding members 1a, lb, provided with interengaging portions 2, the member 1a being provided with a notch 9 to receive the sweep wire, while the edge 1c of the member 16 serves to guide the sweep wire :into the notch. The member 1a is pivoted at 5 to a fitting 6 depending from the mine, while the member lb is attached to the sinker rope 7; a stop 8 is provided to limit the relative movements of the member 1a and fitting 6 and stops 4a and 4 are provided on the member 1a to limit the relative movement between the members. As a sweep wire W<SP>1</SP> comes against the device it is guided into the notch 9 into the position W<SP>2</SP> and the members 1a, lb are then tilted about the pivot 5 and the upper member is drawn over the lower member until the notch projects beyond the end of the member lb and is released from the notch whereupon the parts resume their normal positions due to the buoyancy of the mine. In a modification, a closure may be provided for the notch opening so that when it is operated barnacles or deposit may be cleared from its entrance; alternatively a spring actuated sliding piece may be provided over the notch opening adapted to be moved aside by the drag of the sweep wire and to be spring retracted. A number of the devices may be incorporated in a mine cable as shown in Fig. 5, each device comprising upper and lower plates A, B hinged together at P so as to move relatively in the plane of the plates, and the lower plates of the series may be formed in two hinged parts at D in the plane of the plate, so that the plates can yield to lateral pressure.
Patent GB-1087372-A (GB)
Title: Improvements in or relating to earth moving machines
Inventor: PRIME DEREK ARTHUR
IPC: E02F3/32
Filed: 1966-03-03
Abstract: 1,087,372. Earth-excavating machines. J. C. BAMFORD (EXCAVATORS) Ltd. May 6, 1966 [March 3, 1966], No. 9277/66. Heading E1F.  'In an earth-excavating machine to ensure of improved visibility from the operating cabin on the turntable-supported superstructure the hydraulicreservoir, pump and controls are mounted on the superstructure on the opposite side to that at which the cabin is disposed of an implement-carrying boom pivoted adjacent the centre of one end of the superstructure; said hydraulic system being positioned beneath flat topped casing extending from front to rear of the superstructure, being of a lesser height than the flat topped casing of an engine secured on the superstructure behind the cabin.
Patent GB-696849-A (GB)
Title: Improvements relating to heat-exchange installations for motor vehicles
Inventor: BUCKMAN PETER
IPC: F01P5/06
Filed: 1951-04-24
Abstract: 696,849. Ventilating vehicles. MORRIS, Ltd. April 18, 1952 [April 24, 1951],. No. 9464/51. Class 137 [Also in Group XIII] In a heating in. stallation for a motor vehicle ir which air, heated by hot engine coolant, is supplied to the vehicle space, two radiator section: or alternatively two separate radi ators 1, 1A are provided which are jointly cap able of dissipating the maximum heat output of the engine coolant and are so incorporated in the engine cooling system that one receives coolant from the upstream, and the other (when permitted) from the downstream side of the usual thermostat 4, the radiator or radiators being mounted within ducting having a frontal intake, the flow through which is fan-assisted, and valve controlled outlets being provided whereby the whole or part of the heated air may be delivered to the vehicle space or discharged to atmosphere. In Fig. 2 the radiators are mounted in separate ducts 5, 6 the duct 6 discharging to atmosphere and the duct 5 discharging fresh air heated by the radiator 1, alternatively by operation of valve 10, to the duct 11 and grille 12 and thence to the vehicle space or to atmosphere through the grille 13. A valve controlled duct 14 for unheated air is provided which duct also discharges through the grille 12. Alternatively the duct for unheated air may be incorporated in the duct 5. In other alternative arrangements, the radiators 1, 1A, whilst functioning separately, are combined in a single structure and may be both built into one air duct whilst the other duct is used to supply unheated air to the vehicle space.
Patent GB-858162-A (GB)
Title: Improvements in or relating to conveyor arrangements or installations
IPC: B65G47/48
Filed: 1959-03-19
Abstract: 858,162. Automatic feeding to and discharge from an endless conveyer. PFAFF A.G., G. M. March 19, 1959 [March 25, 1958], No. 9515/59. Class 78 (1). A conveyer for conveying coathangers comprises carriages 13 which run on wheels 14 along guide 12 and are propelled by endless-chain 47. Each coat-hanger 51 to be conveyed to a station 4 is secured at 50 to a carrier 48 provided with a selector disc 53, and the disc is positioned at, e.g., 4. Carrier 48 is placed on rails 70 (Fig. 2) and an empty arriving carriage strikes arm 83 to actuate releaselevers 77 to permit the carrier 48 to slide down rails 70 and be retained on carriage 13 by hooks 37. When the carriage arrives at its predetermined (i.e. fourth) discharge station, its selector disc 53 strikes hanging lever 62 to depress hooks 37 and so discharge the carrier 48 (with coathanger) on to rails 67 as desired. Feeding (Figs. 1, 2).-Carriers to be loaded are shown by their arms 49<SP>I</SP>- 49<SP>IV </SP>which rest on rails 70, and the lowermost carrier is held by pivoted levers 73 which are separated by the action of an arriving empty carriage 13. Thus, carriage 13 carries (see below) lever 25, the stud 26 of which lever strikes an arm 83 which is pivoted on a fixed axis positioned at 82 at the discharging station. Arm 83 then rotates boss 81 which engages and separates levers 77, and lugs 79 on respective levers 77 in turn engage and separate levers 73 to release the lowermost carrier from rails 70 on to the hooks 37 of the carriage. The final separation movement of levers 73 is effected by the carrier itself. Additionally the movement of lever 25 caused by striking arm 83 displaces bar 33 (see below) and pivots hooks 37 to the raised position so that the hooks are able to receive the carrier. Discharging (Figs. 2 and 3).-The discharging element carried by the carriage comprises lever 25 which is pivoted at 21, is biased by spring 30 and is connected by bar 33 to pivoted hooks 37. Lever 25 is assisted by the disc 52 which carries a lug 55 co-operating with a stop 56 carried by the carrier. The co-operating discharging element positioned at the loading station consists of pivoted lever 62. The discharge is made when the disc is set so that lug 55 contacts stop 56. With the carrier thus " set," the disc (now held rigid) strikes lever 62 as it passes the latter, and causes arm 65 of lever 62 to strike stud 27 of lever 25. Lever 25 thus rotates clockwise to an end position (not shown). This rotation via bar 33 pivots hooks 37 in the lowering direction to release the carrier from the carriage at the discharge station. The said station is determined by the operator who rotates disc 52 of the carrier to position 4. As the carriage carries the carrier past the three successive discharge stations the disc clicks over once each time till lug 55 engages stop 56. Then, at the next station (i.e. station No. 4), discharge takes place.
Patent GB-375791-A (GB)
Title: Process for the production of articles made from artificial-resin
IPC: C08L61/22
Filed: 1931-03-28
Abstract: A process for the manufacture of coloured, metallized, ornamented, printed, &c. artificial resin articles consists in impregnating a cellulosic carrier for the design, colour &c. with an artificial resin of the urea-formaldehyde type (e.g. urea-formaldehyde, urea and thiourea-formaldehyde, and dicyandiamide-formaldehyde), and subjecting the impregnated carrier to pressure and heat, preferably in layers with other cellulosic substances.  After hot pressing the cellulosic substance is in colloidal suspension in the resin and all that remains visible is the applied design, colour &c.  In an example, a number of plain paper sheets impregnated with amine resin are placed one on top of the other and the pile is covered on both sides with one or more sheets of impregnated paper carrying the required colour, metal powder, design, graphic tables &c.  The whole is hot pressed.  In a modification the sheet carrying the design &c. is interposed between the plain sheets.  In a further modification, coloured cuttings of fabric or paper or dyed cotton fibres are mixed with an amine resin composition, which is then pressed into articles.