baber/WOPTO huggingface dataset:
Patent GB-748028-A (GB)
Title: Improvements in or relating to means for forming holes in sheet material
IPC: B21D28/34
Filed: 1953-03-23
Abstract: 748,028. Punching. DAVIS SHEET METAL ENGINEERING CO., Ltd., and DAVIS, T. Jan. 26, 1954 [March 23, 1953], No. 7928/53. Class 83 (4). A metal sheet punching device consists of a die 1 located by a bolster 12, a punch 5 and a bolt 15 passing through apertures in the punch and bolster, the punching being effected by tightening a nut 16 on the bolt 15. The recess 13 in the bolster 12 is of larger diameter than the punch 5 to facilitate removal of the blank. The punch 5 has V-shaped recesses in the cutting edge and a shank of reduced diameter so that the sheet 18 can easily be stripped from the device when a hole is punched. Alternatively, the cutting face of the punch 5 may be inclined or curved or formed with a cylindrical recess symmetrical about a diameter. The bolster 12 may be secured to the bolt 15 and may fit outside of the die 1 in which case the die is counterbored to receive the blank. The punch and die may be shaped to cut non- circular holes.
Patent GB-1040234-A (GB)
Title: Improvements in and relating to windows
IPC: E06B3/67
Filed: 1963-02-27
Abstract: 1,040,234. Multiple glazing. H. LUEDER. Feb. 27, 1963 [Feb. 27, 1962], No. 7964/63. Heading E1R. A multiple glazed window comprises sheets 1 of plastics material equispaced between external glass panes 2, 3. The surrounding frame may be stepped (Fig. 1), or comprise U-sectioned 6, Fig. 2 (not shown), or solid metal 7, (Fig. 4), sub-frames with sheets of plastics material, e.g. polyethylene terepthalate, on each side of each sub-frame, and either similar U-sectioned sub-frames 5, (Fig. 2), or resilient sub-frames 8, e.g. of cork, in between, the whole being contained in a rigid polyethylene main frame 11 in the embodiment of Fig. 4. A metal layer 12 may be applied to the frame 11 and stuck to the outer surfaces of panes 2 and 3. The panes or sheets may have a thin, light-transmitting layer applied to them, which layer may have a greater degree of reflectivity and absorptivity for black body radiation of 300‹K. than the material of the panes or sheets, or the sheets or the lighttransmitting layer may have strong absorption bands in large parts of the spectrum of black body radiation of 300‹K.
Patent GB-492656-A (GB)
Title: Improvements in and relating to the production of moulded fibrous or cellular products
IPC: C08L89/00
Filed: 1937-03-18
Abstract: Fibrous or cellular material is intimately mixed with a solution of zein in an organic solvent containing a reactive aldehyde, and formed into a coherent mass.  The bulk of the solvent may be removed before moulding, and the mix then shaped under elevated pressure and temperature.  After shaping, the products may be baked to complete the hardening of the binder. p  The fibrous or cellular material may be sawdust, wood fibre, shavings, paper pulp, wood flour, ground cork or shredded bark. Specifications 492,600, [Group IV], and 492,654 are referred to.
Patent GB-287713-A (GB)
Title: Improvements in or relating to electrical switches
IPC: H01R13/707
Filed: 1927-03-24
Abstract: 287,713. Waite, R. T. March 24, 1927. Plug couplings combined with electric switches. -The circuit pins of a plug member are inserted in sockets 6 attached to a base 7, and the earthing-pin engages a socket 8. Thereafter a handle 22 is operated so as to turn a quadrant 12 of insulating material about an axis passing through the bottom of the sockets, so as to bring contacts 15 which are connected to the sockets into engagement with springs 11 on the line terminals 9 and thereby complete the circuit. The quadrant 12 is slotted at 13 so that the plug can only be inserted when the switch is " off," and when the switch is " on " the narrow ends of the slots engage narrow parts in the pins and so prevent the withdrawal of the plug. A roller 17 on an extension of the handle engages a flat spring 18 so as to give a quick action to the switch.
Patent GB-1064003-A (GB)
Title: Improvements in or relating to brake operating mechanism for trailer vehicles
Inventor: RADFORD HERBERT EDWARD
IPC: B60T7/20
Filed: 1965-02-25
Abstract: 1,064,003. Brake operating mechanisms. BAMFORDS Ltd. Jan. 11, 1966 [Feb 25, 1965], No. 8100/65. Heading F2E. In a brake-operating mechanism for operating the brakes of a trailer vehicle from the driving position of a tractor vehicle, a brake operating lever 11 is pivoted at 12 to a quadrant plate 13 mounted on the forward end of the body of the trailer vehicle and the quadrant plate 13 has ratchet teeth 14 which co-operate with a detent 15 adapted to be released by a catch lever 17 pivoted to the hand brake lever when a brake release flexible element 23 is applied. This action causes a motion transmitting member, in the form of a triangular plate 21 pivoted at 18 to the brake operating lever 11, to pivot and cause a roller 26 to engage the catch lever 17 to release the detent 15, causing the brakes to be released under the spring loading means of the brake. When the brake applying flexible element 22 is applied the plate 21 pivots in a clockwise direction to cause an abutment pin 25 to urge the lever 11 in the brake-applying direction, the catch lever 17 being freed from the rollers 26 and the detent 15 sliding on the ratchet teeth 14 to lock the lever 11 in its brakeapplied position. A bar type handle 24 is disposed adjacent to the driving position of the tractor to facilitate the actuation and release of the trailer brakes.
Patent GB-678470-A (GB)
Title: Improvements in hydraulic pumping units
IPC: F04B49/00
Filed: 1950-03-31
Abstract: 678,470. Hydraulic pumps. DOWTY EQUIPMENT Ltd., and BOWERS, E. H. March 22, 1951 [March 31, 1950], No. 8172/50. Class 102 (i) A hydraulic pumping unit comprises a first stage lowpressure pump 15, having a by-pass 25 controlled by a spring-loaded valve 36, in series with a second stage highpressure pump 18, both pumps having a common driving means, a conduit 16 connecting the two pumps and containing a shut-off valve 27 adapted to close in response to a predetermined output pressure from the second stage pump, and a fixed restriction 28 by-passing the shut-off valve to allow a reduced flow of liquid when the shut-off valve is closed. The pump 15 is of the gear type and the pump 18 is a radial cylinder pump having a suction gallery 17 from which liquid flows through ports 22 in the plungers 19 to the cylinders 20 and is then delivered through valves 23 to a delivery gallery 24 communicating with an outlet conduit 13 and with a passage 30 leading to the shut-off valve. When the latter is raised it closes the main branch 16a and a reduced flow is maintained through the passage 16b and the restriction 28. Further movement of the shut-off valve allows the liquid in the passage 30 to escape through ports 31 and a return conduit 14. The by-pass valve 36 is loaded by a spring 38 carried by a plunger 37, biased by a second spring 39, in a chamber 42 subjected to the inlet pressure of the second stage pump. When the conduit 16 is fully open the pressure in the chamber 42 maintains the plunger 37 at its upper limit and the by-pass valve is set for high-pressure. When the conduit 16 is restricted the byepass valve is set for lowpressure. A branch 34 communicates continuously with the return outlet 14 through a restriction 35. The pumps 15, 18 are driven from a common shaft.
Patent GB-1466539-A (GB)
Title: Cephamycin derivatives and process for preparing the same
IPC: C07D501/57
Filed: 1975-02-27
Abstract: 1466539 Cephamycin derivatives MEIJI SEIKA KAISHA Ltd 27 Feb 1975 8181/75 Heading C2C The invention comprises compounds of formula and their salts, wherein R is C 1-4  alkyl or alkoxy, aryl, aryl-C 1-4  alkyl or aryl-C 1-4  alkoxy. These compounds, said to be antimicrobially active, are prepared by (di-)acylating the corresponding cephamycin containing NH 2  and phenolic OH groups.
Patent GB-708112-A (GB)
Title: Improvements in or relating to electronic valves and similar devices
Inventor: UTTING ARTHUR PRESTON
IPC: H01J19/66
Filed: 1950-03-31
Abstract: 708,112. Discharge apparatus. POSTMASTER GENERAL; and PLESSEY CO., Ltd. July 6, 1951 [March 31, 1950], No. 8185/50. Class 39(1) [Also in Group XL(c)] A thermionic valve or similar device having rigid electrode pins is provided with a rigid adaptor mounted on the pins and maintained in position by means of conductors soldered, welded, or brazed to the pins and having free projecting ends. The adaptor 4, Figs. I and 2, may comprise a thin sheet of insulating material having apertures 5<SP>1</SP> and notches 6 in its edge, the conductors 1<SP>1</SP> passing through the notches and apertures and being soldered to the electrode pins 1. The adaptor may be provided with a central metal tube 19 to form a screen between the electrode pins 1, the tube being attached to a lead wire 20. The valve and adaptor may be mounted in the valve holder shown in Fig. 3 which comprises an insulating ring 7 to which is attached a screening can 8 adapted to be screwed to a baseboard. The ring 7 is provided with slots 13 in which conductors 14 are sprung; the adaptor 4 rests on a ledge 12 in the ring 7 and the conductors 1<SP>1</SP> soldered to the ends 15 of the conductors 14. the other ends 16 of the conductors 14 providing connections to the circuit to which they may be soldered. The adaptor 4 may be provided with a recess 18 and the ring 7 with a corresponding key to locate the valve correctly. In a modification, Figs. 5-8 (not shown), the ring 7 is combined with a moulded-in metal flange to attach it to a baseboard and has no screening can attached to it; a detachable screening can may be placed over the valve. Specification 708,111 is referred to.
Patent GB-105283-A (GB)
Title: Improvements in or relating to Detonators or Fuses for use with Grenades, Shells, Mines, or the like, and Explosives generally.
Inventor: DENNISON FRANK STANLEY
IPC: F42C19/12
Filed: 1916-06-13
Abstract: 105,283. Dennison, r. S. June 13, 1916. Blasting and mining detonators and fuses; projectile fuses.-Consists in a fuse or detonator for use with projectiles, mines, and explosives generally, comprising a casing containing a fine wire or filament of tungsten, tantalum, or molybdenum. The detonator shown comprises a metal casing a having an insulating-plug b through which passes a leading-in wire c, whilst a second wire d is connected to the casing. The wires c, d are joined by a very short length of extremely fine wire e made of one of the metals specified above, the wire e being embedded in explosive powder. This may be separated by a wad from a filling of compressed explosive, and the casing a may be closed by an outer sheath. The circuit may be closed by any suitable means, such as a press-button, a time or percussion device, or a vane-driven arrangement.
Patent GB-201196-A (GB)
Title: A new and improved means of trimming around fireplace and forming hearth
IPC: F24B1/198
Filed: 1922-03-23
Abstract: 201,196. Hanvey, A. G. March 23, 1922, Hearths.-A hearth frame or chimney-breast trimming of steel or other non-inflammable material is in part supported by the wall in which the fireplace is located, and in part by either one or two trimmer joists, according to whether the joists run parallel, or at right-angles, to the wall. The Figures show a construction for use in the former case, comprising sides 1, 2, a front 3, angle-irons 5, 6 supporting the ends of the cut joists, and hooks 5a, 6a formed at the ends of the angle-irons and engaging a joist 7 by which the frame is in part supported. A plate 8 carried on the inner side Banges is also shown, which supports the concrete hearth and effects a saving in concrete. Expanded metal 9 is provided at the bottom of the frame to serve as a key for plaster. In the case where the joists run at right-angles to the wall the ends of the cut joists are supported on an angle-iron secured to the front 3 of the frame, the ends of this angle-iron forming laterally-extending hooks 'engaging the two joists adjacent the sides 1, 2. A number of modified constructions of the frame are described.
Patent GB-101847-A (GB)
Title: Improvements in or relating to Rifling-bars for Gun Barrels and the like.
Inventor: LILLEY JAMES
IPC: B23D5/02
Filed: 1916-06-16
Abstract: 101,847. Lilley, J., and Robinson, W. June 16, 1916. Rifling bars have pairs of oppositely-disposed cutters formed to engage projections on a wedge core carried by a rod made hollow for the passage of lubricant. The projections in the larger sizes of bar may be detachable, as shown at d, Fig. 4. The bore-engaging sleeve a, Fig. 1, is attached to the main sleeve b mounted on the machine by a flange b<4>. The case-rod c<1> is moved to put on the cut, by a lever h against a spring g confined within a fixed casing f located on the rod by a flange c<10>. The cutters have trapped holes to facilitate removal. The hollow-rod delivers lubricant to the cutters through passages c<7>, b<3>, and a<3> in the rod and sleeves. In a modification, light cutters are employed, and the cutters may be shaped as shown in Fig. 12.
Patent GB-754378-A (GB)
Title: Improvements in or relating to impression taking compositions
IPC: A61K6/90
Filed: 1954-03-24
Abstract: In a plastic composition for taking dental impressions as described in Specification 754,375, the zinc fluoride is replaced by nickel fluoride.  U.S.A. Specification 2,657,971 also is referred to.ALSO:In a plastic composition for taking dental impressions as described in Specification 754,375 the zinc fluoride is replaced by nickel fluoride.  In an example 5 gm. of nickel fluoride is added to 72 gm. alkali metal alginate, 220 gm. diatomaceous earth, 7 gm. tetrasodium pyrophosphate, and 40 gm. calcium sulphate hemi-hydrate.  U.S.A. Specification 2,657,971 also is referred to.
Patent GB-702680-A (GB)
Title: Seed spacing drill
IPC: A01C7/18
Filed: 1951-04-13
Abstract: 702,680. Seed sowers. REILLY, H. L. March 25, 1952 [April 13, 1951 ; Aug. 4, 1951], Nos. 8606/51 and 18502/51. Class 6 (1) A seed sower comprises a hopper 18 communicating by means of a shoot 19 with a seed chamber 20. A conveyer belt 24 driven by a ground wheel 3 is formed with a series of perforations each adapted to receive a seed as the belt moves through the chamber 20. Seeds are retained in the belt by a pivoted support 28 upon which the belt rests and the seeds drop down an opening 38 when they reach the end of the support 28. A rubber covered roller 25 rotates in the opposite direction to the belt and retains seed in the chamber 20. Seeds are also retained in the chamber by means of a flexible member 26 which lightly engages the belt. The seed sowing mechanism forms a unit which is pivotally and removably attached to a frame 2 mounted on a tractor draw-bar 6 and comprises a furrow opening blade 9 and a smoother blade 11. The frame is supported at the rear by a roller 7. The roller 25 may be replaced by an endless belt. A number of seed-sowers may be attached to the tool bar. It is stated in the Provisional Specifications that a mechanical or electrical indicator may be provided to indicate slackness in the conveyer belt 24.
Patent GB-1025383-A (GB)
Title: Improvements in or relating to the manufacture of frozen confectionery and moulds therefor
IPC: A23G9/22
Filed: 1962-03-06
Abstract: 1,025,383. Ice-making. J. OLDHAM. March 6, 1963 [March 6, 1962], No. 8652/62. Heading F4H. A mould for use in making frozen confectionery is provided with an insert which defines therewith a cavity for receiving confection solution, one wall of the cavity being made of sheet metal and having an irregular con. figuration and the open top of the mould being of sufficient size to permit the insert and frozen confection to be withdrawn together from the mould. As shown, the mould 2 has one side wall 8 of irregular configuration and an insert 9 comprising a block of pre-frozen confection defining a space 12 for confection solution. After freezing and defrosting the confection is displaced laterally away from wall 8 and then withdrawn upwardly from the mould. Insert 9 may alternatively be formed in mould 2 using hollow inserts which are removed before space 12 is charged. In the embodiment of Fig. 3 (not shown), all of the mould walls are of planar form and one wall 27 of the sheet metal insert is of irregular configuration, the insert being stripped from the confection after their removal together from the mould.
Patent GB-1140030-A (GB)
Title: Improvements in the treatment of sheet material
IPC: D06C3/06
Filed: 1966-02-28
Abstract: 1,140,030. Stretching fabrics. RADUNER & CO. A.G. 28 Feb., 1966 [8 March, 1965; 31 March, 1965], No. 8687/66. Heading D1S. Apparatus for width-wise, stretching fibrous sheet material 10, e.g. a woven fabric, comprises a pair of meshing grooved rolls 20, 22, at least one of which is driven, and means 44 to prevent the material 10 contracting in the width-wise direction in the region of the rolls 20, 22. The lands 36, 38 of the rolls 20, 22, respectively, are staggered with respect to each other. The means 44 comprise elastic rings, preferably elastic tubes filled with a pressure fluid, providing in the end grooves 40 of the roll 20. Two pairs of rolls (20), (22), Fig. 1 (not shown), and (30), (32) are preferably provided and are located between helically threaded spreader rolls (14), (28), (34) or bowed spreader rolls. Fabrics treated by this apparatus may be composed of yarns or fibres of natural or regenerated cellulose, cellulose derivatives, e.g. cellulose acteate, protein fibres, e.g. wool or silk, polyamide, acrylic or vinyl polymers or copolymers, polyesters, polyurethanes or mixtures of different fibres. The stretching treatment may be carried out at any stage during the finishing of the fabric, e.g. it can be carried out before, during, between or after de-sizing, washing, bleaching, dyeing, swelling or liquid, mechanical or heat treatments. Preferably, the fabric is plasticized prior to stretching which is carried out at a temperature of -10 to 250‹C. The apparatus stretches narrow zones of the fibrous material by applying stretching forces longitudinally of each zone to short lengths of material in such a manner that the elongation of the fabric in each short length is at least 10%, prefarably at least 50%, of the elongation at which the fabric breaks and the velocity of elongation in each short length is at least 10% per second, preferably 50% per second.
Patent GB-265034-A (GB)
Title: Improvements relating to perambulators, push-chairs or the like
IPC: B62B9/20
Filed: 1926-03-31
Abstract: 265,034. Stevens, T. J. March 31, 1926. Push-bars.-A folding handle for a perambulator, push-chair, or like vehicle has its side limbs provided with inturned or out-turned unconnected ends which are disposed in axial alignment with, and are pivotally supported by, bearing members secured to the body. The hendle may be held in the operative position bv suitable catches such as are described in Specification 258,758. As shown, the inturned ends 2 of the handle 1 engage sleves 5 detachablv screwed on to lugs 4 carried bv brackets 3 or. the end of the body. In a modification, the inturned or out-turned ends of a tubular handle engage over trunnions or pivots carried by brackets on the body.
Patent GB-512851-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: B60T13/26
Filed: 1938-03-22
Abstract: 512,851. Fluid-pressure brakes. BOSCH GES., R. (formerly BOSCH AKT.-GES., R.) March 22, 1938, No. 8719. Convention date, March 22, 1937. [Class 103 (i)] In a trailer fluid-pressure brake an auxiliaiy lever 21 for operating the brake by muscular effort is also used to operate an auxiliary valve for operating the trailer fluid-pressure brake when the trailer is uncoupled. The trailer brake cylinder 10 is supplied with fluid from an auxiliary reservoir 17, Fig. 1, by a distributor 15 operated when fluid is exhausted from pipes 18, 19 leading to the tractor, for instance when the trailer is disconnected. The auxiliary valve 20 connecting the pipes 18, 19 is adapted to release the trailer so that the trailer can be moved after disconnection from the tractor. To release the brakes the lever 21 is moved to the left and through a spring 44 and a lever 43 moves a sliding pipe 29 and a diaphragm 24, 33 to the right until a disc 33 mounted on the diaphragm by means of a bellows 34 seats on the end of the pipe 18. Further movement causes opening of a valve 31 and admission of fluid from the auxiliary reservoir 17 by pipes 40, 39, 29 and apertures 37 to the pipe 18 and valve 15, whereupon the brakes are released. Fluid is also admitted by a channel 41 to the chamber 25 on the left-hand side of the diaphragm, which is thus held to the right so as to maintain the brakes released. The brake may be again applied by movement of the lever to the night which moves the diaphragm 24 and the disc 33 to the left to allow fluid to escape from the pipe 18 and also from the chamber 25 by the pipe 19. The spring 44 allows graduated application and release. The lever 21 is also used to apply the brakes directly by pin and slot 47, 48 and a rod 49.
Patent GB-1518902-A (GB)
Title: Aerodynamic drag reducing means for vehicles
IPC: B62D35/00
Filed: 1976-03-05
Abstract: 1518902 Vehicle drag reducing means AEROVIRONMENT Inc 5 March 1976 [7 March 1975] 08861/76 Heading B7J An aerodynamic drag reducing means for a truck comprises an apertured plate 24 mounted on a cab roof. The apertures comprise circular openings, horizontal or vertical slots. The plate is provided with side baffles 133 or spaced aerofoils, Fig. 11 (not shown), for directing air around the side edges. The plate may be hinged to the cab roof so 'that it may be moved to an inoperative position. A vertical roller blind is mounted on the rear of the cab and may be extended to engage a hook or hooks on the trailer to provide a screen preventing cross winds blowing through the gap between the cab and trailer. The front face of the trailer is streamlined by curved baffles attached to the side, top and upper edges, Figs. 7, 8 and 8(a) (not shown).