baber/WOPTO huggingface dataset:
Patent GB-686683-A (GB)
Title: Improvements in or relating to screwdrivers, wrenches and like tools
IPC: B25B19/00
Filed: 1949-12-16
Abstract: 686,683. Screwdrivers, wrenches. GARRINGTON & SONS, Ltd., and SHARMAN, J. C. Nov. 28, 1950 [Dec. 16, 1949], No. 32281/49. Classes 61 (i) and 61 (iii). In an impact wrench or screwdriver comprising an operating element and a head adapted to be hit by a hammer whereby sudden torque is applied to the operating element against the action of a return spring acting between the members, the head is held against rotation during delivery of the blow by a handle temporarily disposed in an operative position at right angles to the rotational axis. The operating element 10 comprises a cylindrical member 19 slidable in a tubular member 16 integrally connected to the head 12, a screwdriver bit 11 or wrench or spanner part being carried by the member 10. The opposite ends of a pin 18 extending diametrically through the cylinder 19, work in inclined slots 17 in the tubular part 16. The releasable handle comprises a tommy bar 27 which may be inserted through either of the pairs of slots 15 provided in the head 12. A compression spring 21 is interposed between the member 10 and a pin 23 slidable within a recess in the end of the tubular part 16, the outer end 26 of the pin being adapted to engage and frictionally locate the tommy bar. In a modification a part cylindrical handle is hinged to the upper end of the tubular part 16 and may be folded into an inoperative position parallel to the axis of the tool in which position it engages the ends of the transverse pin 18 and allows the tool to be used as an ordinary screwdriver. Two tools may be provided, the slots in one being inclined oppositely from those in the other. In another modification the tubular portion 16 is connected to the member 10 and the pin 18 to the striking head 12. The Provisional Specification describes an impact wrench wherein the head is of hexagonal form and is held against rotation by one end of a wrench.
Patent GB-189996-A (GB)
Title: Improvements in or relating to oilers and the like
IPC: F16N3/04
Filed: 1921-12-02
Abstract: 189,996. Garside, J. Dec. 2, 1921. Lubricating-cans.-An upright oiler A, having an air inlet pipe D open to the atmosphere in the upper structure C, is fitted with a vent pipe F. The vent F, which may be straight or bent or an integral part of the spout E, allows air trapped between oil in the spout and that in the body A of the container, after use, to escape to the atmosphere, and thus prevents leakage from the pipe D. Specification 156,937 is referred to.
Patent GB-356556-A (GB)
Title: Improvements in cases enclosing at least one object such as a watch
IPC: A45C11/10
Filed: 1930-10-28
Abstract: 356,556. Watch cases. GAY FR’RES, 12, Rue des Glacis de Rive, Geneva, Switzerland. Oct. 28, 1930, No. 32355. Convention date, Jan. 14. [Class 139.] A case adapted to be opened and closed with one hand and enclosing a watch case, comprises two halves 5, 6 shown in horizontal section in Fig. 1, both slidable on an inner body 9 containing the watch case 27 and held in closed position by the engagement of spring bolts 20, 21 in the space between a head 22 and a sliding ring 24 on rods 13, 14 fixed in the parts 5, 6 respectively, and contained within tubes 11, 12. To open the case the parts 5, 6 are first pressed together so that the spring bolts 20, 21 ride up on to the outer surface of the sliding rings 24 which then rest against fixed collars 23. If the parts 5, 6.are then released springs 15 press them apart, the sliding rings 24 being then moved by the bolts 20 into contact with the heads 22 so that the bolts are disengaged from the heads and the parts 5, 6 are completely separated, giving access to the contents 27. The spring bolts 20 are re-engaged by pressing the parts 5, 6 together. The bolts 20 may be replaced by springs 29, Fig. 5, the turned-in ends of which either engage behind the head 22 or on the sliding ring 24. In another form spring hooks 30, 31, Fig. 6, are pressed out of engagement by a sliding collar 32, the surface of which is then engaged by the hook 31 so that when the parts 5, 6 move outwardly the collar 32 comes against the hook 31 and prevents re-engagement of the hooks. The watch may be held by a spring 28, which, when disengaged, permits the watch to be turned upwards about a spring hinge 27 to serve as a small clock.
Patent GB-1436495-A (GB)
Title: Energy absorbing unit for physical exercising devices
Inventor: FORSMAN L O
IPC: A63B22/06
Filed: 1974-07-22
Abstract: 1436495 Automatic control of power and torque L O FORSMAN 22 July 1974 [2 Aug 1973] 32407/74 Heading G3R [Also in Divisions A6 and H2] An excerising device in which a person undergoing training operates pedals to drive a movable member against the action of an asynchronous brake (see Division H2) includes control circuity operating to provide a constant braking force or a constant braking power. In providing a constant braking force, the current supplied to the brake windings 44, 45 is regulated by a unit 50 responsive to an amplifier 54 and a comparator 53 which is fed a reference signal from potentiometer 52 and an instantaneous current signal U 1  from the regulator 50. In providing a constant braking power, an additional signal is fed through from an amplifier 58 responsive to a comparator 56 which is fed a reference signal from potentiometer 57 and an instantaneous power signal Up from a multiplier 55. The work performed is obtained from an integrator 60 whose output is fed to a unit 61 capable of providing intermittent loading cycles, dependent on the work performed, by supplying an appropriate reference signal to comparator 56 or by sending a blocking signal to regulator 50. The braking force may also be controlled by an amplifier 65 responsive to a comparator 64 which is fed a reference signal from a potentiometer 63 and a signal from a unit 62 which senses the pulse of the person training, e.g. someone with a heart ailment.
Patent GB-175730-A (GB)
Title: Improvements in machinery for forming and applying wire staples
IPC: B27F7/21
Filed: 1920-11-17
Abstract: 175,730. Sharp, J. W., and Sharp, J. W. Nov. 17, 1920. Addition to 154,015. Stapling.-The machine described in the parent Specification is adapted for corner-stapling, a rectangular blank being formed as before on the rectangular former b<3>. When the former b<3> is slid outwardly, a plunger pin or ball b<4> forms a worksupport to enable a bending blade b<2> to change the shape of the staple e as shown in Fig. 2. The blade b<2> forces back the plunger pin or ball b<4> and forces the staple through the corner of the box. and a pair of pivoted clench blades d<2>, operated by a driver d', bend down the staple ends. The operation of the spring h<1> functions differently to that described in the parent Specification. The lug h<2> is arranged so that the spring presses the machine head downwardly, the upward motion after the operation is completed being obtained by a cam. The plunger pin b<4> may be fixed integrally with the former b<3>.
Patent GB-1471552-A (GB)
Title: Water proofed building structures
IPC: E04D7/00
Filed: 1974-07-23
Abstract: 1471552 Drying roofs SUMITOMO CHEMICAL CO Ltd 23 July 1974 [25 July 1973] 32515/74 Heading E1W A concrete or mortar building structure, e.g. a roof, is waterproofed in a way to allow drainage of condensate formed under the waterproofing layer by placing on the surface of the structure a porous sintered thermoplastic resin material having a total void volume of from 20% to 70%, comprising interconnected pores forming a capillary structure, this material being only partially covered by the waterproofing layer, thus allowing moisture to pass up through said layer. The material may be polyvinyl chloride or a vinyl chloride copolymer. The material is sintered by placing a powder on a belt of stainless steel or a knitted cloth of glass fibres, e.g., using a roll or a knife, preferably arranging the powder with channels therealong to provide a channelled material, which may be combined with another similar, or planar layer of similar or other material to give a hollow product for drainage purposes.
Patent GB-812203-A (GB)
Title: Improvements in or relating to a method of making moulds and cores
Inventor: BAILEY DENNIS FREDERICK
IPC: B22C1/22
Filed: 1956-10-25
Abstract: The parts of foundry moulds and cores are united by an adhesive comprising a mixture of a powdered synthetic thermosetting resin and a liquid having a boiling point greater than 150 DEG  C. which is not a solvent for the resin at the temperature at which it hardens. Phenolic resins e.g. based on phenol, cresol or xylenol and formaldehyde are preferred since urea resins give off objectionable fumes when being cured, and the preferred liquids are oils such as mineral lubricating oils, electrical insulating oils and liquid paraffin.  In one example a paste comprising 83 gr. of mineral lubricating oil and 100 gr. of heat hardenable phenolformaldehyde resin powder (100 parts of a 90/10 phenol-cresol formaldehyde novolak to 10 parts hexamethylenetetramine), was applied to shell mould halves heated to 230 DEG  C.  In another example, liquid paraffin 83 gr. was mixed with 100 gr. of heathardenable urea-formaldehyde resin, and applied to core parts at 190 DEG  C.
Patent GB-1275306-A (GB)
Title: Improvements in or relating to disc brake assemblies and a method of making a brake pad for such assemblies
Inventor: HARDING PETER REGINALD JAMES
IPC: F16D69/04
Filed: 1969-06-27
Abstract: 1275306 Disc brakes BBA GROUP Ltd 27 June 1969 32525/69 Heading F2E In a disc brake assembly a brake pad 3 comprising a backing plate 5 and a friction slab 6 is interposed between a piston 4a of a piston and cylinder mechanism (4) and a rotatable disc (2), and part of the backing plate 5 in the region of the plate 5 opposed by a piston face 4b is cut away at 10 so that only a portion of the face 4b acts to apply pressure to the pad 3. The cut away part 10, is in the form of an elongated aperture 10 (Fig. 3), a segment of a circle (Fig. 4, not shown) or an open-ended slot (Fig. 7, not shown). The material of the friction slab 6 bridges and partially fills the cut away part 10 with a clearance 14 between the piston face 4b and slab 6 and at least one keying hole 11 is provided in the backing plate 5 which keying hole(s) is (are) completely filled with the material of the friction slab 6. The pad 3 is made by a moulding operation as illustrated in Fig. 9 whereby the material of the slab 6 is attached to a backing plate 5 having a cut away part 10 and a keying hole 11: the mould comprises die walls 25 and a base plate 26 having a spigot 24 which partly extends through the cut-away part 10 to give the desired clearance 14 in the pad 3 as finished. The arrangement is said to limit brake squeal. The backing plate 5 is provided with holes 9 for slidably mounting the pad 3 on pins for movement relative to the disc.
Patent GB-1024117-A (GB)
Title: Distillation of diphenylolalkanes
IPC: C07C37/74
Filed: 1963-08-16
Abstract: Bisphenol-A and other gem-diphenylolalkanes are purified by vacuum distillation in the form of a liquid stream flowing on a substantially horizontal surface, the length of the flowpath being at least 50 times the average of its width and depth.  In an example, a mixture of phenol, acetone, and a small proportion of resin (recovered by extraction of the product) is saturated with hydrogen chloride and continuously fed to the first of three reactors arranged in series and maintained at a temperature of 50 DEG  C.  Phenol is added to the material leaving the last reactor, and the mixture is fed to the top of a column in which all the HCl and water, and some of the phenol, are driven off under vacuum.  The mixture leaving the bottom of the column is fed through inlet 5 into vacuum chamber 2 where it flows in a zigzag path over the horizontal surface 3 which is <FORM:1024117/C2/1> <FORM:1024117/C2/2> heated so that vapours of phenol, isopropyl phenol, 2,2 - (2,41 - dihydroxy - diphenyl) propane, the 2,2-(2,21) isomer, and 2,2,4-trimethyl-4-p-hydroxyphenyl chroman are discharged from the chamber through pipe 7.  The liquid withdrawn through outlet 6 is passed to a second vacuum chamber of the same type where bisphenol-A is distilled off from higher-boiling impurities.  The bisphenol-A distillate is fed into a trough in which an internally-cooled cylinder is rotating.  A layer of solid crude bisphenol-A builds up on the cylinder.  The solid is removed by a blade, ground and then fed to a vessel where it is extracted with benzene.  The extracted bisphenol-A is centrifuged and dried in vacuum.  The benzene containing the extracted impurities is distilled at atmospheric pressure, leaving a resin which is recycled to the reactors.
Patent GB-1279739-A (GB)
Title: Differential output for barometric instrument
IPC: G01L13/02
Filed: 1970-07-06
Abstract: 1279739 Pressure gauges LEIGH INSTRUMENTS Ltd 6 July 1970 [7 July 1969] 32612/70 Heading G1L In an altimeter the contraction and expansion of aneroids 10, 12 and 14, 16 with a variation in pressure, due to a change in height, rotate shafts 26, 34 and quadrants 36, 38 through levers 22, 24 and 30, 32 to enable the quadrants to  drive a gear 49 through a mechanical differential gear assembly 44 comprising a planetary assembly 112, loaded by a spring 122 through a gear 43 to prevent backlash provided with pinions 128, 130 driven by face gears 102, 108 driven by the quadrants 36, 38 through gears 40, 42, to drive a spring-loaded coupling 48 which in turn drives a shaft 51 and a rotor of a synchrocontrol transformer 53 an output indicator shaft 60 and a Veeder counter 74. A manually adjustable knob 97 and associated mechanism permits the instrument operator or pilot to set a counter 89 to a prevailing barometer pressure for the purpose of landing or take-off.
Patent GB-521257-A (GB)
Title: Apparatus for dressing or forming grinding wheels used for grinding or finishing gear teeth
IPC: B24B53/075
Filed: 1938-11-10
Abstract: 521,257. Trueing grinding wheels. COVENTRY GAUGE & TOOL CO., Ltd., WAINWRIGHT, J. E., and HARLEY, S. J. Nov. 10, 1938, No. 32629. [Class 60] Wheels for grinding involute gear teeth are dressed by a tool 2 starting from a position on the base circle 9 and mounted to move tangentially to this circle in a slide on a plate 5 rotatable about the common centre of the base circle and a fixed wheel or sector 6. The tool slide is traversed by a projection 8 engaging an adjustable sine bar 7 mounted on a slide traversed by a nut on a screw 12 that also meshes with worm wheel teeth on the wheel 6. The shaft 10 may be provided with-separate worms for engaging the nut and worm wheel permitting variation in the ratio of movements. The sine bar is so set that the linear movement of the tool equals the arc of displacement round the base circle. Interference may be reduced by modifying the setting of the sine bar or by employing a bar having a composite surface comprising portions at different angles. In a modification the screw is replaced by a sector engaging teeth both on the wheel 6 and on the slide. The trueing device may be displaced through 180‹ to true the other side of the wheel or the parts may be duplicated so that both sides may be trued simultaneously.
Patent GB-1163699-A (GB)
Title: Electric Internal Resistance Heating Apparatus.
IPC: H05B3/00
Filed: 1968-07-09
Abstract: 1,163,699. Internal resistance heating. CHESTON CO. 9 July, 1968 [28 March, 1968], No. 32648/68. Heading H5H. The clamping electrodes of the internal resistance heating apparatus of copending Specification 1,160,859 are modified. Each end of a workpiece 53 is gripped in notches 52, 61 in a fixed electrode, e.g. 50 and movable electrode, e.g. 59, the side walls 54, 55 and 62, 63 of the respective electrodes 50, 59 being tapered at about 10 degrees to the horizontal as shown in Fig. 5 so that notches 52, 61 form clamping surfaces which converge in the axial direction away from the workpiece. Each of the fixed electrodes 50 (51, not shown) is mounted in a respective clamp 68 which is pivotally mounted on arms 76 (77, not shown) so that when the fixed and movable electrodes are brought together to clamp a stockpiece a seating or wiping action occurs between the stockpiece and pivoted fixed electrode. An adjustable stop 78 limits pivotal movement of the fixed electrode. A silicon controlled rectifier circuit to control the heating current so that initially the stockpiece is heated at reduced power, then at full power, and finally at reduced power is described and shown.
Patent GB-1361053-A (GB)
Title: Radial tyre with strengthened bead tie-in
IPC: B60C15/00
Filed: 1971-07-12
Abstract: 1361053 Pneumatic tyres GENERAL TIRE & RUBBER CO 12 July 1971 [13 July 1970] 32669/71 Heading B7C A pneumatic tyre comprises a carcass including a radial cord ply 22 which ply may extend continuously or discontinuously from bead to bead and includes doubled-over portions turned up (as shown) or turned down (Fig. 2, not shown) about bead cores 12 to provide two contacting reinforcing layers both axially inwardly and outwardly of the bead cores. The ply edges 26 may be positioned radially outwardly, or radially inwardly, with respect to folds 30. The tyre includes chafer strips 14. The cords of the ply 22 may be cotton, nylon, polyester, glass, rayon or steel. The Specification also discloses (a) a tyre with a carcass including two radial cord plies each being of the form described above, and (b) a tyre with a carcass including two radial cord plies only one of which is of the form described above (the other ply having no folded portions).
Patent GB-663351-A (GB)
Title: Strip feeding mechanism
IPC: B21D43/09
Filed: 1949-12-20
Abstract: 663,351. Metal-strip feeds. DICKERMAN, H. E. Dec. 20, 1949, No. 32673/49. Class 83 (iv). [Also in Group XVI] In an apparatus for feeding successive portions of strip material to a machine and having a slide reciprocable along a support in which is mounted upper and lower shafts to which are fixed coacting feed rolls, disposed at one side of the support and having their outer ends free so that the material to be fed is passed laterally therebetween. The actuating means for one of the shafts is operated by a slide reciprocable in opposite directions to continuously rotate the shaft in one direction, thereby to rotate the feed rolls in a feeding direction. The apparatus has a support 2 upon which is mounted a slidable member 8 operated in one direction by a reciprocable cam 6 acting on a roller 18 and in the return direction by a spring 14. The slide 8 is formed with a slot provided with racks 481 and 50 which mesh with gears 46 and 48 mounted on a shaft 28, having at one end a feed-roll 42 and, through gears 42<SP>1</SP>, in driving connection with an upper shaft 34 and feedroller 42. When slide 8 is moved towards spring 14 the lower roller 42, attached to shaft 28, is rotated in a counter-clockwise direction by rack 48 through a gear 46, and the upper roller 42 through gears 42<SP>1</SP>, in a clockwise direction, whilst a gear 48 is rotated freely by rack 50. When slide 8 is moved in the reverse direction by spring 14 the upper and lower gears 42 are driven in the same counter-clockwise and clockwise directions by rack 50 rotating gear 48, the gear 46 being freely rotated by rack 48<SP>1</SP>. Rollers 52 (Fig. 4) resting on the inclined bottoms of circumferentiallyspaced grooves 54 provide the driving connection between gears 46 and 48 and shaft 28. A spring 62 and adjusting screw 60 provide yielding pressure to the upper roller 42 end of shaft 34 and screws 66, 68 permit adjustment of a bearing-block 38 at the. other end of shaft 34. Friction washers 72 adjusted by a member 76 acting on a spring-washer 74 serve as a brake to shaft 28. A bracket 80 provided with rollers 88 mounted on blocks 83 adjustable along a slot 82 provide a means for guiding material fed to the rollers 42. A pad 4 is provided for securing support 2 to a machine.
Patent GB-855179-A (GB)
Title: Improvements in the manufacture of gratings
IPC: B21F27/12
Filed: 1957-10-19
Abstract: 855,179. Making gratings; jointing by forging; broaching. MENTIS, A. Oct. 14, 1958 [Oct. 10, 1957], No. 32712/57. Classes 83 (2), 83 (3) and 83 (4). In a method of making metal gratings, e.g. for flooring &c., having bearers 12 and crossstays 19, Fig. 4, bearers are assembled in parallel-spaced relationship, and simultaneous and repetitive operations are then carried out to cut notches 18 in the bearers 19, to insert and cross-stay in previously cut notches, and to press a previously-inserted cross-stay to deform the metal at the junctions to secure the cross-stay to the bearers. A carriage 13 straddles the bearers 12, which are supported on a slotted bed 11 and carries mechanisms 14-16. Mechanism 14 comprises a saw 17 which, during a traverse of the carriage, progressively cuts notches 18 and slightly undercuts the bottom of the notches with the broach-like trailing part of the saw. Mechanism 15 having a grip 21, simultaneously with the action of the notching-saw, engages a cross-stay 19 in previously-formed notches. Both mechanisms 14, 15, are retracted upwards on the return traverse of the carriage 13 by a spring 34 released by a cam 35. The joint is made at each junction between the bearers 12 and the cross-stays 19 by a series of swaging-blocks 29 resiliently mounted on a cross-member 28, the blocks 29 working in conjunction with anvils 31 which engage the bottom of the bearers and cross-stay. During the traverse of the carriage in both directions, a roller 24, held down by heavy supports 27, presses the swaging-blocks 29 into engagement with the junctions of the grating to deform the metal of bearers 12 and stays 19 about each other and to press the bottom of the stay into the bottoms of the notches 18, which shear slightly, a preformed thickening on the underside of the stay being thus caused to swell into the undercut-portions of the notches. After each traverse of the carriage the fingers 38, 39 feed the grating one step to the right, and a cutting-action, to sever a length of strip 19 from a roll, may be associated with the movement of the fingers. The carriage may be reciprocated by a rack-andpinion. The swaging-pressure may be applied by an hydraulic-jack or jacks or by the pressure-plate of a press.
Patent GB-380653-A (GB)
Title: Improvements in the treatment of argentiferous manganese ores
IPC: C22B47/00
Filed: 1931-11-27
Abstract: In the extraction of silver and manganese from refractory ores containing them, a suspension of the ground ore in water is treated with sulphur dioxide to bring the manganese into solution as sulphate and dithionate, and the residue is then treated with a thiosulphate solution to extract the silver, and copper if present, the silver with or without copper being finally precipitated for instance as sulphide.  The solution containing manganese is evaporated to dryness and calcined to convert the dithionate to sulphate, the sulphur dioxide evolved being returned to the first step of the process. Calcium thiosulphate solution is preferably used to extract the silver, which is then precipitated by calcium sulphide containing thiosulphate obtained by boiling a suspension of lime in water, so that after precipitation the concentration of thiosulphate in the remaining solution, which may be treated with sulphur dioxide to remove residual calcium sulphide before re-use, is maintained.  The silver precipitate may be roasted to provide sulphur dioxide for use in the first step of the process.  In commencing operations, sodium thiosulphate may be used to extract the silver, whilst according to the Provisional Specification it may be used continuously and its concentration be maintained by using, to precipitate the silver, sodium sulphide containing thiosulphate obtained by boiling soda ash with sulphur.