baber/WOPTO huggingface dataset:
Patent GB-1369744-A (GB)
Title: Injection moulding
IPC: B29C45/16
Filed: 1973-05-03
Abstract: 1369744 Injection moulding IMPERIAL CHEMICAL INDUSTRIES Ltd 3 May 1973 [8 May 1972] 21353/72 Heading B5A An injection unit comprises two separate sources 11, 21 of plastics materials, a valve body having a pair of channels 10, 20 therethrough, each communicating with one of the sources and with a mould cavity (not shown), a pair of members 13, 23, one associated with each channel, each member being mounted in a bore extending from the associated channel and slidable in the bore from a position wherein it closes the channel to a position wherein the channel is open, the arrangement being such that, when the member is in the position closing the channel, material in the channel upstream of the member can exert a force on the member in the direction of moving the member to the open position, and means 31, 32 to apply pressure to the other ends of the members 13, 23. The means 31, 32 comprises a ram 31 to which pressure is applied by an hydraulic cylinder 32. The members 13, 23 comprise shuttles whose sliding movement is limited by stops 17, 27 (Fig. 8) the shuttles being provided with chamfered ends whereby pressure of moulding material can move them to open position against the pressure applied by ram 31. Injection cylinders 11, 21 contain screw rams 18, 28 which can be reciprocated by hydraulic cylinders 19, 29. The cylinders 19, 29 and 32 are connected through valves 100, 200, 300 to a constant volume pump 3. The hydraulic circuit also includes a pressure release valve 5, on/off valves 101, 102 and valves 102, 202 which open at different predetermined pressures. In operation, material from one source is injected first then material from both sources, and then material from the other source. A further injection from the first source may follow. The invention may be applied to a sandwich moulding process in which the core material may be foamable. The two injection channels 10, 20 may converge into a single sprue channel 2 (Fig. 8) or may communicate separately with the mould cavity. Figure 9 shows a modified construction which enables all the material downstream of the shuttles 13, 23 to be removed as part of the sprue of the moulding, thereby reducing contamination.
Patent GB-599452-A (GB)
Title: Improvements in and relating to powder compacts
IPC: A45D33/00
Filed: 1946-09-03
Abstract: 599,452. Powder compacts. LOCKER, M. Sept. 3, 1946, No. 21433/45. [Class 18] The lid 1 and body 2 of a powder compact are formed with one or more sets of close-fitting complemental grooves and ribs 7, 8 which completely surround the powder compartment in the body. The compact is made as a plastic moulding of substantially circular shape, the powder compartment being of the same shape. A mirror 9 is positioned within a recess in the lid which is provided with a cowl embracing the hinge 3, an edge on the cowl engaging the edge of the body to hold the lid in a position in which the mirror can readily be used. The compact may be made of transparent or translucent material, and the grooves and ribs 7, 8 may be of tapered cross section. A strip of felt or rubber may be provided between the base of a groove and the top of a rib, or the top of a groove may itself have a narrow groove to to receive a corresponding narrow rib standing up from the bed of a groove. The lid may have an engraved or embossed outer surface, so that when a layer of ornamental material is placed behind the mirror, the surface of the lid appears decorated. The decorative appearance is enhanced by providing a double-sided mirror 9.
Patent GB-1263903-A (GB)
Title: Improvements in or relating to display devices
Inventor: MCCLINTOCK ANDREW LINDSAY MUIR
IPC: G01F15/06
Filed: 1968-05-07
Abstract: 1,263,903. Counters. NATIONAL RESEARCH DEVELOPMENT CORP. 5 May; 1969 [7 May, 1968], No. 21460/68. Heading G4D. The numerals on a counter are duplicated so that two sets of numerals are offered for display, one or other set being masked according to the phase of the stepping cycle of the lowest denomination. The principles are shown in Fig. 4 showing the position of the mask at successive quarter cycles. The numerals may be duplicated on each wheel or two sets of wheels may be used. The mask may be operated by a low pressure fluidic device (Fig. 5, not shown). Display may be by light projected through successive transparent discs with alternate half-  sectors opaque (Figs. 6-8, not shown) or by selection of different optical paths (Figs. 9-14, not shown).
Patent GB-771862-A (GB)
Title: Improvements in or relating to the moulding of bricks, blocks and the like
IPC: B28B13/06
Filed: 1955-07-25
Abstract: 771,862. Moulding bricks, tiles &c. CARLSTEIN, H. B. July 25, 1955, No. 21479/55. Class 87(2). A compression moulding machine in which a top die 4 compresses the material and a bottom die 2 ejects the moulded article, e.g. a brick or tile, has (i) an L-shaped die plate 6 with its upright side 6a adapted to lie against one side of the mould cavity and its horizontal side attached to, or adapted to have laid on or adjacent with it, the bottom die 2 and (ii) a pallet 7 placed in an upright position in the corner, or against the inner upright face, of the die plate 6. To accommodate the pallet 7 and upright side 6a the mould space is extended at 1a. After the moulding operation the compressed brick and also the pallet and die plate (together with the bottom die if attached or laid thereon) are ejected bodily as a unit from the mould 1 and this unit is turned on its side about the corner of the die plate on a table 9 and the compressed brick and pallet are removed so as to be portable together to a stacking area. In the machine described the top die 4 is movable vertically by an air operated ram 5 and the bottom die 2 is movable to eject the moulded article by an air operated ram 3. In the raised position of the ram 5 the unit is retained in its raised position by catch plates 10, 11 which may be brought under the ends of the die plate by a hand lever 12 acting through links 13, 14, 15, 16. The table 9 is recessed at 27 to enable the operator to grip the corners of the overturned unit to remove the moulded brick, with its pallet and their separation from the die plate is assisted by lugs 28 which project upwards sufficiently to stop the die plate, but not the pallet and brick, when the unit is moved towards the edge of the table. Excess material which leaves the mould falls through slits 26 in the table 9. Gauging stops 36 may be provided which are operated by the descent of the ram 5 and shut its control valve to stop its downward movement, thus ensuring uniformity of size in the moulded bricks. A safety stop 37 may also be set to arrest the descent of the ram 5 while the operator is working under it. The feed hopper 22 may be swivelled on arms from a receiving position to a feeding position in which its lower end 25 is inclined towards the mould opening. The dies 2, 4 may be changed according to the size and shape desired for the moulded article. To provide cavities or grooves in the article punches 29, 30 may be provided on the bottom rams 3 and/or on a stationary punch plate 31 with respect to which the ram 3 and associated parts are slidable, openings 32 being provided to allow the passage of the punches 30.
Patent GB-734784-A (GB)
Title: Improvements in or relating to filters for fluids
IPC: B01D27/06
Filed: 1952-08-28
Abstract: 734,784. Filters. SOC. DES ATELIERS R. DE MAGONDEAUX & CIE. Aug. 28, 1952 [Oct. 12, 1951], No. 21649/52. Class 46. [Also in Group XXVIII] The side walls of an inward flow hollow prismshaped filter consists of accordian-pleated filter paper strips 1, Fig. 2, mounted in a rigid frame, e.g. flanged top, bottom and side plates 4a, 4, 5, Fig. 3, the fold lines 2 being transverse to the edges of the prism and the longitudinal margins of each folded strip being inserted fold by fold between the folds at the adjacent margin of an adjacent strip and maintained in contact by the pressure exerted by the frame. The fold lines 2 extend between the apices of opposite notches 2a and along parallel lines midway between the notches. In a modification use is made of paper strips without notches; the apices of the corners of assembled strips being trimmed.
Patent GB-597262-A (GB)
Title: Improvements in or relating to ultra-high-frequency electrical apparatus
IPC: G01R27/32
Filed: 1945-08-23
Abstract: 597,262. Testing radio apparatus ; wave-guides. ALLEN, W. D., and JOHN. STON, J. E. M. Aug. 23, 1945, No. 21662. [Class 40 (v)] [Also in Group XXXVI] An arrangement for effecting a test or measurement on ultra-high-frequency electromagnetic wave apparatus by observation of the standing wave conditions set up in a length of wave-guide connecting the apparatus with a source of oscillations, comprises an energy pick-up device continuously movable from end to end of a selected portion of the wave-guide and means for rectifying the energy picked up and supplying the resultant D.C. output to the terminals of a cathode-ray oscillograph. In the form shown, an ultra-high-frequency oscillator 10 is connected by a rectangular waveguide 12 to the apparatus under test at 14. Projecting through a slot in the inner curve of a semicircular portion of the wave-guide 12 is a probe 15 carried by a rotatable drum 16 adapted to be driven by motor 20 and shaft 21. Energy collected by probe 15 is rectified at 17 and the resultant voltage after amplification at 28 is fed to one pair of deflecting plates x1, x2 of a cathode-ray oscillograph 29. The other pair of deflecting plates yl, y2 is supplied with a sinusoidalvoltage generated in a cored coil 25 by the rotation of an eccentric iron disc 23 on shaft 21. This will give a graphical representation on tube 29 of the standing wave conditions in the semicircular part of guide 12. Instead of a sinusoidal time base, a linear time base may be used. This may be generated or synchronized by a stepped cam 31 on shaft 21. The guide 12 may be provided with an attenuator in the form of a blade 33 of lossy material which may be variably inserted in a slot in the guide wall. There may also be provided a wavemeter 35 in the form of a calibrated tunable stub. Fig. 2 shows a constructional form of the semicircular part of wave-guide 12 and associated parts. Two semicircular members 12a, 12b are each provided with channels which, when secured together, form the curved part of wave-guide 12 leaving a slot 12c along the inner curved wall. Drum 16 is mounted on shaft 21a so as to rotate in close proximity to the inner curved wall of guide 12, and is formed with a flange 16b which substantially closes slot 12c. Leakage is further prevented by suitably dimensioned channels 16c. Probe 15 is adjustably positioned in a bore in drum 16 so as to constitute a coaxial line for feeding energy through an axially disposed guide 36 to a rectifier unit 42 which supplies an output to a contact blade 48 for feeding to the cathoderay oscillograph. Instead of a rotating probe, a reciprocating probe could be used. Alternatively, the probe may be kept stationary while the standing waves are made continuously to pass the probe by means of a suitable phaseshifter such as that described in Specification 597,258.
Patent GB-584539-A (GB)
Title: Improvements in rotary drying machines
IPC: D06F58/02
Filed: 1944-11-04
Abstract: 584,539. Laundry &c. drying - machines. BRAITHWAITE & SON, ENGINEERS, Ltd., J., and BANKS, W. Nov. 4, 1944, No. 21663. [Class 34 (ii)] A laundry &c. drying machine comprises an inperforate rotary horizontal cylinder A having opposed perforated lifters A<4>, A<6> extending longitudinally along its inner surface, the lifter or lifters A<4> communicating with a hot air inlet A<3> through a radial hot air supply duct D, disposed between parallel walls A<1>, A<2> at one end of the cylinder, and the lifters A<6> communicating through similar ducts D' with the hollow trunnion B of the machine which leads to a suction fan E through ducting G. As shown, the air inlet A<3> extends axially from the cylinder wall A' and concentric with the trunnion B, which is mounted on the wall A<2>, the end of the inlet A' remote from the said wall A<1> opening to atmosphere through a heating battery F. The arrangement is such that rotation of the fan E by an electric motor C<1> will induce a current of air through the heater F, inlet A', duct D, lifter A<4> and across the drying cylinder to the lifters A', ducts D', trunnion B and ducting G, the fan exhausting direct to atmosphere; some of the exhaust may, however, be returned to the machine, with or without reheating, as desired. The motor C<1> also rotates the cylinder A through spur-gearing c<3>. The cylinder and its trunnion rotate on anti-friction rollers a, b mounted in a supporting frame C, and air seals d, b' are provided between these parts and the stationary heater F. A lint-collecting bag may be fitted in the ducting G. The invention is also applicable to machines with a drying cylinder supported on trunnions at each end, in which case drying air may be supplied to the cylinder through one trunnion and exhausted through the other. Specification 493,950 is referred to in the Provisional Specification.
Patent GB-812567-A (GB)
Title: Improvements relating to hook bolt cabinet locks
Inventor: WEBSTER JOHN
IPC: E05B65/08
Filed: 1956-07-13
Abstract: 812,567. Key locks. FOX & R. H. MORGAN Ltd., H. & J. July 15. 1957 [July 13, 1956], No. 21671/56. Class 44 In a lock for a sliding closure 10, such as a door, &c., a pivoted hook bolt 14 is provided having two alternative locking positions in a striking box 25 which has closed side walls 27 projecting from a flange 26 adapted to be mounted on a sill 12. The hook bolt 14 is urged into the locking position by a spring 34, and is moved to the opening position by means of a crank-pin 23 attached to a barrel lock 22 operated by a key 21. The two alternative locking positions may be provided by two hooks 31, 32 on the bolt 14 for engagement with a shoulder 30 on the striking box 25, or alternatively, a second shoulder may be provided on the striking box for engagement by a single hook on the bolt. A casing 16 for the lock is mounted in the closure 10 with its fore-end 18 spaced back from the leading edge of the closure in a recess 24, or in a rebate at the rear of the closure, and the side walls 27 of the striking box 25 prevent access to the hook bolt by any tool which may be used in an attempt to force the lock. Lateral wings 19 are provided on the hook bolt 14 to close the gaps left between the hook bolt and the ends of an opening 17 in the fore-end 18 to prevent probing the lock interior.
Patent GB-294653-A (GB)
Title: A rotary compressor for gaseous fluids
IPC: F04B27/04
Filed: 1928-07-26
Abstract: 294,653. Leperre, E. F. A. C. July 28, 1927, [Convention date]. Pistons.-The pistons g are of graphite or like frictionless material, and are driven outwards centrifugally against an eccentric ring i supported on roller bearings j of graphite &c. in a dish h mounted eccentrically on a shaft a, having inlet and outlet passages. The pistons move radially in bores in a disc e which is rotated on a ring d of graphite &c. carried by the shaft.
Patent GB-358611-A (GB)
Title: A new or improved foot-arch support
IPC: A43B7/22
Filed: 1930-07-18
Abstract: 358,611. Foot-arch supports. THACKRAY, C. F., 10, Park Street, Leeds. July 18, 1930, No. 21728. [Class 81 (ii).] In a foot-arch support of the type in which an insole or sock is provided with an internal main reinforcing pad designed to support the longitudinal arch of the foot, in conjunction with a separate resilient meta-tarsal pad located in front of the main pad, the main and meta-tarsal pads are permanently secured between peripherally connected upper and lower coverings on the insole or sock and the main pad is of a shape conforming at its sides to the inner and outer longitudinal edges of the insole or sock. As shown in the Figure, the main pad a of cork is inserted between upper and lower canvas linings b, c adhesively secured between coverings d of thin leather secured together by stitching f, whilst the meta-tarsal pad g of sponge rubber is located between the upper canvas lining and the upper covering d. Ventilation holes h, i may be provided at the rear and front ends of the sock.
Patent GB-867145-A (GB)
Title: Improvements in or relating to timing apparatus
IPC: G04F3/08
Filed: 1958-07-08
Abstract: 867,145. Valves. MIDGLEY, A. H., and MIDGLEY, A. M. June 29, 1959 [July 8, 1958], No. 21863/58. Class 135. [Also in Group XXXVII] . The starting and stopping times of a switch similar to that of Specification 768,842 are set by a single member, which can also set the hands of a clock controlling the switch. A knob 34 is attached to a sleeve 32 carrying a pinion 35 which in its outer position (Fig. 3) engages a pinion 36 connected via gears 37, 38 with a pinion 29 controlling the hands 1, 2. If the knob is depressed (Fig. 5), pinion 35 meshes with a pinion 39 which via a gear 21 drives a gear 8 having a lost-motion connection with a gear 20. Gears 8, 20 are mounted on sleeves 44, 43 respectively carrying stop and start indicator discs 47, 10. Anti-clockwise rotation of knob 34 in the inner position rotates discs 10, 47 clockwise to set the start time, subsequent clockwise rotation of the knob returning disc 47 to set the stop time. Specification 846,398 also is referred to.
Patent GB-1498656-A (GB)
Title: Preparation of agglomerated granules
IPC: C08L27/18
Filed: 1975-05-21
Abstract: 1498656 Agglomerating tetrafluoroethylene polymer/filler blends E I DU PONT DE NEMOURS & CO 21 May 1975 [24 May 1974 (2) 11 Dec 1974 (2)] 21914/75 Heading C3P Non - melt - fabricable granular tetrafluoroethylene polymer particles of average size below 200 microns and particulate hydrophilic filler particles are agitated in a water/immiscible organic liquid medium in the presence of an organosilane and/or a soluble (i.e. non-crosslinked) silicone resin. The organosilane has at least one amino functional group attached to the Si atom through a Si-C bond and at least one hydroxyl or water-hydrolysable functional group attached directly to the Si atom. The amino functional group may be a C 1-14  aliphatic or aromatic group having a primary, secondary or tertiary amino substituent; the water-hydrolysable group may be OH, Cl, F or C 1-5  alkoxy; any remaining groups attached to Si may be alkyl, aryl, aralkyl and alkaryl. The silicone resin contains the recurring structure where R<SP>1</SP> and R<SP>11</SP> are both C 1-20  hydrocarbyl or one of R<SP>1</SP> and R<SP>11</SP> is H and the other is C 1-20  hydrocarbyl. In examples, the organic liquid was tetrachloroethylene and the organosilicon compound was (1) γ-aminopropyl triethoxysilane, (2) phenylmethyl siloxane and (4) a mixture of α-aminopropyl triethoxysilane and phenyl methyl siloxane. The tetrafluoroethylene polymer may be a homopolymer or a copolymer which is non-melt-fabricable and contains, e.g up to 2% of units derived from C 3-6  perfluoroalkenes. Exemplified fillers are glass fibres, bronze/molybdenum sulphide and bronze.
Patent GB-122626-A (GB)
Title: Improvements in and relating to Changing and Transfering Fluid Temperatures.
Inventor: EDWARD SHAW
IPC: F28D7/08
Filed: 1918-12-31
Abstract: 122,626. Shaw, E. Jan. 25, 1918, [Convention date]. Loop-tube and plate apparatus; tubes of special section.-In an apparatus for the exchange of heat between two volumes of flowing fluids, the formation of films of low conductivity, which may tend to accumulate on the surface of the ducts, is prevented by leading one or both of the fluids through ducts shaped so as to give a continually changing direction to the flow therethrough. In the construction shown in Figs. 1 and 2, the apparatus comprises a series of casings or coil containers 1, 2, 3, 4, each of which is provided with a tortuous duct 5 formed by alternating bosses 6, 7, and through these ducts are led a series of pipes 10. The ducts 5 and pipes 10 of adjacent casings are connected at their ends, and one fluid is passed through the pipes 10, and the other fluid in the reverse direction through the ducts 5. In a modified construction, a series of pipes, each of which is bent into a number of figure-eight loops, are located in a single casing through which a flow of cooling liquid is maintained. In another modification, an inner duct or pipe of substantially rectangular cross-section is formed either from a circular tube or from two plates 44, 45, Fig. 7, brazed together, and is transversely corrugated, with the corrugations of the upper surface alternating with those of the lower surface, as shown. In a further modification, Fig. 12, an inner annular duct is formed between two transversely ribbed cylindrical tubes 53, 53<1>, and these tubes are located between outer and inner casings 46, 51, so that a flow of fluid is arranged through the duct from an inlet 55 to an outlet 56, while the other fluid flows on both sides of the duct in the reverse direction from an inlet 57 to an outlet 57<1>. In other arrangements, the two ducts are formed by two concentric spirally corrugated tubes which give a spiral movement to the fluids in addition to the broken longitudinal movement. One or both of the concentric tubes may taper, in either direction, and the depth of the corrugations may vary along the length of the tubes, or the corrugations may entirely disappear at one end.
Patent GB-684326-A (GB)
Title: Improvements in or relating to air-cooled internal combustion piston engines for aeroplanes
Inventor: MARCHANT FRANCIS CHARLES IVOR
IPC: F01P7/02
Filed: 1949-08-23
Abstract: 684,326. Turbines: motor power plant; jet propulsion plant; axial-flow fans. BRISTOL AEROPLANE CO., Ltd. June 28, 1950 [Aug. 23, 1949], No. 21934/49. Classes 110(i) and 110(iii) [Also in Groups XXVII, XXXIII and XXXIV] Cooling air is drawn over an aeroplane . engine 10, Fig. 1, mounted in a cowling 11 which may form part of a wing-mounted nacelle 12, by an assembly 19 comprising a fan 24, Fig. 2, driven by a turbine 25 to which engine exhaust gases pass by a conduit 16. 28, 30, the turbine and conduit lying within the nacelle or cowling so as to be washed over by the cooling air from the engine which, together with the turbine exhaust gases, is discharged into a duct 17 and out rearwardly, as through a controllable flap 18, to assist propulsion of the aeroplane. As shown the turbine 25 is supplied by the annular exhaust manifold 16 of a radialcylinder engine 10 which receives cooling air through a cowling mouth 15. A streamline housing 20 supported within the duct 17 by hollow vanes 26, 30 carries a rotor 22 having tan blades 24 within the duct 17 and turbine blades 25 within the housing 20. The pipe 28 communicates with an annular chamber 29 from which the exhaust gases pass into an open-ended duct 33 formed by the rear part of the housing, either through the vanes 30 to drive the turbine or through turbine by-pass pipes 35 having manually or automatically operated valves 36. preferably linked, controlling the amount of gas passing over the blades 25. The rotor bearings 23 are lubricated by a pump 38 supplied from a tank 27 via the vanes 26, the lubricant passing therethrough, as well as the gas passing through the vanes 30, being cooled by the air stream. Part of the correspondingly warmed air is led off via a pipe 40 controlled by a valve 42 and is supplied to the aircraft wing to prevent accretion of ice thereon. In Fig; 7 (not shown) the turbine is formed by the outer portions of the fan blades, disposed in an individual annular duct supplied by the pipe 28 and leading directly to the duct 17; the amount of gas flowing through the turbine being regulated by one or more valvecontrolled by-passes leading from the pipe 28. The turbine may be connected by a shaft to the engine to transmit power thereto.