baber/WOPTO huggingface dataset:
Patent GB-1526514-A (GB)
Title: Process and apparatus for producing synthetic polymer films
IPC: B29C48/31
Filed: 1976-03-23
Abstract: 1526514 Regulating thickness of extruded and drum quenched film or sheet TEIJIN Ltd 23 March 1976 [24 March 1975] 11692/76 Heading B5A  A film or sheet 17 of polymeric material which is extruded from a die passage 16 and cooled, e.g. prior to biaxial stretching, by application to a quenching drum 24 by means 20 located between the extrusion die 14 and the drum 24, is maintained at a uniform thickness across its width by homogenizing the material by kneading it between the extruder 10 and the die passage 16, and by adjusting the temperature of the die by heat transfer means disposed at locations spaced across the width of the passage 6, to maintain the required uniform thickness. The kneading can be effected by varying the area or shape of the material flow path, or by means of a static mixer having a helical screw or, as shown, by a mixer comprising a rotary helical screw 12 which mixes peripheral and centrally located material. The heat transfer means may be separated by heat insulation material, or by slits in the die, and may be located on one, or preferably both sides of the passage 16 as shown, and may comprise heating and/or cooling means, and preferably comprises cartridge heaters and gaseous or liquid cooling medium jackets alternating across the width of the die. Control to maintain the required uniform thickness is effected by means 30 measuring thickness across the width of the film, e.g. by #-ray, or transmitted light, and acting electrically through an integration device, or a memory circuit. The pinning may be effected by a roller, pneumatic pressure of an air knife or, as shown, electrostatically by a charge applied to the film from a high voltage source 21 with the drum 24 being grounded at 22. The material may comprise numerous specified thermoplastics, and the examples relate to polyethylene terephalate which is biaxially stretched subsequent to quenching.
Patent GB-680096-A (GB)
Title: Improvements relating to flame cutting machines
IPC: B23K7/10
Filed: 1951-05-18
Abstract: 680,096. Perforating &c. by fusion. DANIEL, A. May 18, 1951 [May 20, 1950], No. 11698/51. Class 83 (iv). In a flame cutting machine, between the burner 3 and the remainder of the machine is arranged a protective shield comprising two plates 4, 5, of which the outer plate 5, of good conducting material such as copper, is movable towards and away from the surface on which the wheels 2 run. The plate 5 may be loaded by means of a spring 9 or gravity and is spaced from the plate 4 and guided by screws 6 and slots 7.
Patent GB-775670-A (GB)
Title: Improvements in or relating to nesting or the like blocks for profiled bodies
Inventor: PLUMMER HARRY JAMES
IPC: B23P15/04
Filed: 1954-04-23
Abstract: 775,670. Work-holders; making workholders and gauges. ADAMS & CO., Ltd., C. May 17, 1955 [April 23, 1954], No. 11764/54. Classes 83 (2) and 83 (3). [Also in Group XIX] A block for holding or gauging a profiled body, e.g. a turbine-blade, comprises a compacted mass or masses of hard, rigid elements 2, 3 which are united to one another and together accurately define the desired profile in the block. As illustrated in Fig. 2, steel-wires are used which are clamped in two masses by plates 5, 6. The profiled body is pressed against the front ends of the wires to produce a correspondingly profiled surface by displacement of the wires relatively to each other. The surface produced is then consolidated by soldering or welding the wires together; this may be facilitated by using previously-tinned wires. Spaces 9 at the ends of the wires opposite the profiled surface are subsequently filled with a low melting point alloy. In the construction of Fig. 3, metal laminations 12 are compacted, after the profiled surface is produced, by bolts 14 and clamping-plates 13. Low melting-point alloy is introduced into the space 16 behind the laminations, which may be ground to form a flat backsurface. A pair of opposed blocks is required to hold a profiled body.
Patent GB-1032837-A (GB)
Title: Gas-controlled jig
IPC: G05D16/20
Filed: 1965-03-19
Abstract: 1,032,837. Vibrators. BETEILEGUNGSUND PATENTVERWALTUNGS G.m.b.H. March 19, 1965 [March 20,1964], No. 11835/65. Heading F1S. [Also in Division B2] A gas-operated jig is provided with a hollow body of variable volume which is mounted beneath a screen 2 and with limit switches 11, 12, 13 which limit variations in a length of the body and act on means for varying the pressure internally of the body. The hollow body may be in the form of a cylinder or, as shown, may consist of a bellows 3 mounted between end plates 4 and 5, the latter being secured to a box girder 6 the interior of which is in communication with the interior of the bellows. The limit switches 11-13 which are of the contactless type and operate through an electric or magnetic field or light rays, are secured to a U-shaped bracket 8 carried by the end plate 5 and interengaged with a similar bracket 7 carried by the end plate 4. The switches are influenced by the lower portion of the bracket 7. A resilient stop 9 carried by the bracket 8 serves as a precaution against destruction of the bellows if control by the switches fail. In normal operation, the stop 9 absorbs the kinetic energy of the moving end plate 4. The box girder 6 is equipped with inlet and outlet valves 14, 15. When the inlet valve 14 is connected to a source 16 of excess pressure and the outlet valve 15 is connected to atmosphere, a spring 10 acts on the bellows to assist in the reduction in length. Alternatively, when the outlet valve 15 is connected to a source of reduced pressure and the valve 14 to atmosphere, the spring 10 will act on the bellows to cause its extension. A further modification is to have the inlet valve connected to a source of excess pressure and the outlet valve to a source of reduced pressure. As shown, the upper limit switch 11 is electrically connected to an operating member 18, e.g. a servo mechanism, which actuates the valve 14 in the closing sense and to a delay member 19 which through an operating member 20 actuates the valve 15 in the opening sense. The switches 12, 13 are connected to a selective switch member 21 which influences the valve 15 in the closing sense through an operating member 22 and the valve 14 in the opening sense through an operating member 23. With a number of bellows arranged side by side below the jig screen transversely to the direction of travel of material through the jig only one bellows may be provided with limit switches. In a jig having a number of screens in series in the direction of travel of the material, a bellows under each bed may be equipped with switches for different control of the jigging strokes in each jig.
Patent GB-270489-A (GB)
Title: Hasp fastenings for expansible suit cases, trunks and the like
IPC: E05B65/50
Filed: 1926-05-07
Abstract: 270,489. Cheney, C. W. May 7, 1926. Hasp fastenings.-The hasp member and the bolt member, while in engagement and with one of these members attached to the lid, are slidable as a one - piece member with ratchet or one-way clutch engagement lengthwise on and along an attachment plate on the body of the expansible suitcase. As shown, the flyoff hinged hasp d secured to the lid a has its notched peg d<2> engaging a bolt-carrying member f with a boss g<2> for hand-operation of the bolt g that may be key-locked. A A spring h on the back of the member f carries a tooth h<2> for engagement with the ratchet teeth e<2> formed on the guide-plate e secured to body of the suitcase. The plate f is slidable in guides e<5> and may be moved freely in one direction, but the limb spring h requires tn be lifted bv hand to release the tooth h<2> before the lid can be moved upwardly to expand the casing. The closing edge of the lid engages under a projection i of the member f. In modifications, the ratchet pawl is carried by the hasp and only becomes engaged with the ratchet teeth when the hasp is in engagement with the bolt member; or, in place of the ratchet and pawl device shown, a one-way friction clutch device may be used. Specification 236,734 is referred to in the first Provisional Specifications.
Patent GB-1195953-A (GB)
Title: Improvements in or relating to Internal Combustion Engines.
Inventor: DOOLEY JAMES LINVILLE
IPC: F02B75/22
Filed: 1968-03-12
Abstract: 1,195,953. Charging two-stroke engines. McCULLOCH CORP. March 12, 1968 [March 14, 1967], No. 11908/68. Heading F1B. In a multi-cylinder two-stroke engine the exhaust from one cylinder, e.g. 150 Fig. 8 passes into an arcuate duct 176, rotating with the crankshaft, and forces the air therein through the exhaust port 196 of an adjacent cylinder which is on the charging portion of its cycle. In Fig. 1 each cylinder has air inlet ports 52, fed with compressed air from an air box 64 via space 54, and exhaust ports 58 which discharge into passages 60, 62, adapted to co-operate with the rotating member 26 in which is formed an arcuate passage 32, corresponding to passage 176 of Fig. 8. The member 26 is bolted to the end of the crank-shaft 22 and associated therewith a valve plate 70 with ports 110, 112, 114, Fig.2, co-operating with ports 66 in the air box 64 to admit air to the passage 32(176) to scavenge the exhaust gases therefrom. An extension 122 on the member 26 closes the ends 130 of the exhaust outlets, after the air charge has been forced therethrough, to prevent escape of charge through the exhaust ports. Fig. 6 shows the duct 176 being scavenged by air from the air box 64 entering through ports 170 . . . . 173. In Fig. 8 the exhaust from cylinder 150 is forcing air in duct 176 into cylinder 166 through its exhaust port 196, air also entering this cylinder through the normal air inlets 52, Fig. 1. In Fig. 10 (not shown) the exhaust port (196) is blocked by the valve pipe (178) (122 on Fig. 2) whilst duct 176 is again being scavenged, the mixture of exhaust gases and air escaping from the open ends 180, 182, of the duct 176 flowing to an exhaust gas collector 28, Fig. 1.
Patent GB-418379-A (GB)
Title: Improvements in recoil operated firearms
IPC: F41A3/64
Filed: 1933-04-24
Abstract: 418,379. Automatic guns. CHEVALLIER SELF-LOADING FIRE-ARMS, Ltd., 7, Union Court, Old Broad Street, London, CHEVALLIER, A. L., and SANDERS, T. F., 15, Warstone Parade East, Birmingham. April 24, 1933, No. 11957. [Classes 92 (ii) and 119.] Recoil-operated guns, having breech mechanism slidably removable from the rear of the weapon after raising a hinged gate 5 which takes the rearward thrust of the breech-block 11, are according to the invention provided with a device for locking the barrel part of the gun to the stock part which can only be brought to unlocking position when the hinged gate is raised. The invention is shown applied to a rifle as described in Specification 400,588, in which the stock part 3 is connected with the barrel part by a forward hinge not shown. The gate has fast with it a hinge-pin 7 passing through lugs 2 on the action slides 1 and lugs 4 on the stock 3. After releasing a catch 16 operated by a top-lever 20, the gate is first raised and then moved laterally to bring collars 9 on the hinge-pin 7 clear of recesses in the lugs 2. The stock can then be swung down as the pin 7 carried in the lugs 4 is able to pass through the cut-away parts 10 of the lugs 2. A bumping- plate 14 is arranged between the breech-block and the gate.
Patent GB-481060-A (GB)
Title: Liquid level indicator
IPC: G01F23/16
Filed: 1937-04-27
Abstract: 481,060. Indicating liquid levels. MOHR, A. April 27, 1937, No. 12030. Convention date, April 27, 1936. [Class 123 (i)] In a liquid-level indicator in which the pressure necessary to force air out of a depending open-ended dip-tube is measured, the depending tube 27 terminates in a bell 28. The air escapes through a small tube 26 terminating in an oblique sharp-edged outlet 26a, the level of which determines the level of liquid within the bell 28. The tube 26 may be 1-2 mm. diameter. A gauze cover 32 may be provided on the mouth of the bell. In a modification, Fig. 2, the pipe 26 is arranged centrally within the bell, and terminates in an oblique openended tube 34, so that the air escapes into the liquid at the outlet 26a. Air passes from the dip tube to the pipe 26 by way of a sleeve 35 and nozzle 26b, the latter imposing a resistance to flow. Specification 294,469, [Class 123 (i)], is referred to.
Patent GB-1084428-A (GB)
Title: Benzothiadiazine derivatives
IPC: C07D285/16
Filed: 1966-03-18
Abstract: Novel 4 - substituted - 1H - 2,1,3 - benzothiadiazine - 2,2 - dioxides and N - chloroderivatives of the formulae <FORM:1084428/C2/1> <FORM:1084428/C2/2> wherein R is a C1- 4 alkyl, phenyl or substituted phenyl radical, R1 is halogen or a C1- 4 alkyl, C1- 4 alkoxy, trifluoromethyl or sulphamoyl radical, n is 0, 1 or 2 and R2 is hydrogen or a C1- 4 alkyl, phenyl, benzyl, alpha-methylbenzyl or phenethyl radical, are prepared by reacting sulphamide with a compound of the formula <FORM:1084428/C2/3> and, if desired, "alkylating" products in which R2 represents hydrogen with C1- 4 alkyl halides, benzyl halides, alpha-methylbenzyl halides or phenethyl halides, or reacting said products with chlorine.  21 - Amino - 41 - chloro - 51 - sulphamoyl - acetophenone and 2 - Amino - 5 - chlorobenzophenone are prepared by hydrolysing the corresponding N-acetyl derivatives.  6 - Chloro - 2 - methyl - 4H - 3,1 - benzoxazine - 4 - one and 21 - acetamido - 41 - chloroacetophenone are prepared by reacting with acetic anhydride 5-chloroanthranilic acid and 21-amino -41-chloroacetophenone respectively.  2 - Acetamido - 5 - chlorobenzophenone is prepared by reacting 6-chloro-2-methyl-4H-3,1-benzoxazine-4-one with phenyl magnesium bromide.  21 - Acetamido - 41 - chloro - 5 - sulphamoyl-acetophenone is prepared by reacting 21-acetamido - 41 - chloroacetophenone with chlorosulphonic acid followed by ammonium hydroxide.ALSO:Compounds of the formula:-  <FORM:1084428/D1-D2/1> wherein R is a C1-4 alkyl, phenyl or substituted phenyl radical, R\sv is halogen or a C1-4 alkyl, C1-4 alkoxy, trifluoromethyl or sulphamoyl radical and n is 0, 1 or 2, and similar comcotton textiles.
Patent GB-728584-A (GB)
Title: Improvements in testing arrangements for wide-band telecommunication systems
Inventor: THOMAS ARTHUR
IPC: H04J1/16
Filed: 1951-05-23
Abstract: 728,584. Unattended repeaters. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. May 12, 1952 [May 23, 1951], No. 12098/51. Class 40 (4). In an arrangement for testing unattended repeaters along a four-wire multiplex transmission route, the inputs and outputs respectively of the " go " and " return " amplifiers at each station are connected by filters F2, F4 in order that a signal such as the intermodulation products of two tones transmitted from a terminal station for testing purposes may be returned thereto. Series filters F1, F3, Fig. 1, which have a stop-band falling within the passband of the cross-connecting filters, suppress distortion products from the preceding stages. Test tones A and B are transmitted and second or third order difference frequencies are returned, and by variation of A frequency, B frequency, or both successive tests of successive repeaters may be made. A loop loss test may also be made with a frequency lying in the passband F2 of each station but outside of the blocking filters F1 and, F3. Test tones and their intermodulation products are selected to lie in the interchannel gaps in order that testing may be effected without interference with the system. The filters F2, F4 have a low bridging loss and may be switched into or out of circuit with the minimum of disturbance.
Patent GB-1450010-A (GB)
Title: Preparation of triamino pyrimidine n-oxides
IPC: C07D239/50
Filed: 1975-03-24
Abstract: 1450010 Triamino pyrimidine N-oxides; substituted cyanimino propionitriles UPJOHN CO 24 March 1975 [26 April 1974] 12112/75 Heading C2C  A method for preparing 6-amino-5-R 3 -2,4- diaminopyrimidine-3-oxides comprises: (a) O- alkylating an R 3 -substituted 2-cyanoacetamide in the presence of an inert solvent, thereby forming an enol ether where R is the alkyl from the alkylating agent, (b) reacting said enol ether with cyanamide in an alcoholic solvent, thereby forming a novel 2-R 3 -3-(cyanimino)-3-NR 1 R 2  propionitrile and (c) reacting the 2-R 3 -3-(cyanimino)-3- NR 1 R 2  propionitrile with hydroxylamine or a hydroxylamine salt and base, thereby forming the 6 - amino - 5 - R3 - substituted - 2,4 - diaminopyrimidine-3-oxide In all the above formulµ, R 1  and R 2  are independently H, C 1 -C 10  alkyl, C 2 -C 10  alkenyl, C 5 -C 8  cycloalkyl unsubstituted or substituted with 1 to 3 C 1 -C 3  alkyls, or phenyl (C 1 -C 6 )- alkyl, or R 1  and R 2  together with the nitrogen atom to which they are attached form a heterocyclic ring of 3 to 7 carbon atoms, or are morpholoino, piperazino, or N-(C 1 -C 3 )alkylpiperazino, each of the rings having 0 to 3 C 1 -C 3  alkyl groups as substituents; and R 3  is H, C 1 -C 6  alkyl, C 2 -C 6  alkenyl, C 5 -C 8  cyclealkyl unsubstituted or substituted with 1 to 3 C 1 -C 3  alkyls or phenyl(C 1 -C 6 )alkyl. The compounds of Formula I are used in therapeutic compositions.
Patent GB-425651-A (GB)
Title: Improvements in vehicle brake mechanism
IPC: B60T13/24
Filed: 1934-04-23
Abstract: 425,651. Fluid - actuated valves. HILL ENGINEERING CORPORATION, Mutual Building, Richmond, Virginia, U.S.A. April 23, 1934, No. 12202. Convention date, April 29, 1933. [Class 135] [See also Group XXXIV] A control valve for fluid-pressure brakes comprises two co-operating valve members, one actuated by the pedal to establish the operative pressure in the brake cylinder or actuator and the other by the pressure in the actuator to follow-up the movement of the first to lap the valve when the pressure established corresponds to the movement of the pedal. The operative pressure in the actuator is arranged to react upon the pedal. A valve for a vacuum brake is shown. The sleeve valve member 55 is actuated by the pedal through lever 104 and rod 99 and is connected to a diaphragm 53 subject on its two sides respectively to the pressure of the atmosphere through port 54<1> and to the vacuum in the brake actuator through passages 25, 109. The co-operating valve member 78 is connected to a diaphragm 72 which is subject on its two sides respectively to the pressure of the atmosphere through port 75 and to the vacuum in the actuator through passage 48. A spring 81 bears on the valve member 78. In the normal position shown, the brake actuator is connected to atmosphere through passages 25, 43, 47, ports 63, 62 in valve 55 and groove 80 in the valve 78. The vacuum source is connected at 38 and initial movement of the pedal to apply the brake registers the ports 60, 61 in valve 55 with groove 79 in valve 78 to connect the vacuum source to the actuator through passages 38, 47, 43. When the vacuum in the actuator acting on the diaphragm 72 is sufficient to bring the brake shoes into contact with the drums, it compresses the spring 81 and the valve 78 moves to the left to lap the valve ports. Further movement of the pedal and valve 55 results in corresponding movement of the valve 78 and the gradual application of the braking pressure. The vacuum in the actuator acting upon the diaphragm 53 reacts upon the pedal to indicate the braking pressure to the operator. The pedal is shown mounted freely upon the brake operating shaft and arranged to engage a lever thereon with lost motion to apply direct pressure to the brakes when desired.
Patent GB-1510454-A (GB)
Title: Dust scrubbing
IPC: B01D46/30
Filed: 1977-03-23
Abstract: 1510454 Dust scrubbing materials WASAGCHEMIE GmbH 23 March 1977 [25 May 1976] 12203/77 Headings C1A and C1J A filler material for wet dusting installations for the filtering of gases, in particular outgoing air, the material being stable in shape, round or ellipsoidshaped, and blown or foamed, is composed of water-permeable granules having a granulation of 4-20 mm. in diameter, a grain density of 0À1 to 0À8 g/cm<SP>3</SP> and a water absorbency of more than 10% by volume. The filler material may be composed of cellular glass, foamed ceramic granules, light expanded clay aggregate or polymers and polycondensation products such as PVC, polyamide, fluorohydrocarbons, or phenolic foam granules, provided that they do not swell.
Patent GB-199707-A (GB)
Title: Improvements in mechanism for interconversion of rotary and reciprocating motion
IPC: F16H23/08
Filed: 1923-05-07
Abstract: 199,707. Crankless Engines (Aus.) Proprietary, Ltd. June 21, 1922, [Convention date]. Engines with main shaft parallel to axis of cylinder; revolving-cylinder and reciprocating- piston type; driving-gear.-In means for converting rotary into reciprocating motion and vice versa of the kind described in Specification 118,098, in which the swash-plate is engaged by articulated slipper elements moving with the reciprocating elements, the slipper elements are held in position by a cage or carrier, the rotation of which independently of the casing carrying the reciprocating elements is prevented by interconnecting the cage and casing. The swashplate 1 is secured on the shaft 2 and is engaged by slipper elements 4, which may have ball projections 18 engaging screwed sockets (not shown) in the cam or carrier 9 or, as shown in Fig. 1, may engage directly with the rounded end 12<a> of a connecting-rod 12 or with a ball member 11 between which and a socket 10 the end 12<a> is held. The ball end 13 of the rod 12 is connected to a piston 5 carried in a frame 6. Preferably several pistons and rods are employed on one or both sides of the plate 1. The frame 6 may be stationary so that the shaft 2 revolves, or the shaft and swash-plate may be stationary so that the frame rotates as the pistons reciprocate. The cage 9 is supported on a bearing 8 on the plate 1 and has a spherical projection 19 engaging a corresponding seating 20 on the frame 6. To prevent its rotation relatively to the frame 6, the cage 9 carries diametrically opposed trunnion pins 21 engaging blocks 22 sliding in guides 23 in the frame. Lubricant is supplied to the wearing surfaces through a pipe 24. In a modification, the cage 9 is maintained in working position by a disc secured on the boss of the plate 1, slipper elements being arranged between the cage and the disc. In this form, the rods 12 may be connected to the cage 9 as shown in Fig. 5, in which a spherical projection 40 on a bar secured in the cage is engaged by corresponding parts 12a, 12b carried by the connecting-rod. In the construction shown, a spherical surface 51 on the cage 9 engages a corresponding surface on a plate 50 supported by a bearing 53 on a block 54, which is held in position by the plate 1 and a collar 55 on the shaft. To prevent rotation of the cage 9 relatively to the frame 6, a toothed ring 56 on the cage engages a ring 60 of equal diameter on the frame. Lubricant is supplied through passages 62, 63. Specifications 157,980 and 172,972, [Class 80 (iii), Link-work &c.], also are referred to.