baber/WOPTO huggingface dataset:
Patent GB-1183723-A (GB)
Title: Means for Grinding Shear Blades.
IPC: B24B3/52
Filed: 1967-04-05
Abstract: 1,183,723. Grinding blades. LITCHFIELD ENG. PTY. Ltd. 5 April, 1967 [6 April, 1966], No. 15622/67. Heading B3D. [Also in Division B4] A shear blade comprises a cutting face 14 and a back face 11 defining a cutting edge, the relief angle of the back face increasing towards the tip of the blade. The back face may be hollow ground and of helical form and the blade may be straight or curved. Grinding.-The shear blade is ground in apparatus comprising a main frame 27, a grinding wheel 21, a jig 35 for clamping the blade 10 and arranged to be pivoted about an axis substantially parallel to the axis of rotation of the grinding wheel, means 29 to move the jig back and forth across the grinding wheel, and cam means 41, 43 for rocking the jig about its pivoted axis as it moves across the grinding wheel. The blade 10 is clamped against a projection 46 on the jig by a member 49 moved by a wedge 48, and the jig is supported by pivots in bosses 31 on an oscillating frame 25 mounted by a universal joint 28 on a main slide 37 movable towards aid away from the grinding wheel along a guide 36. The frame is oscillated in a direction parallel to the axis of the grinding wheel by a fluid cylinder 29 to traverse the blade across the grinding wheel, the jig 35, during this movement being rocked about its pivotal axis to vary the angle of the back face 11 of the blade by engagement of a roller 43 with a cam 41 carried by a post 40 on the main slide 37. The back face thus formed may be helical. If the blade is curved, the frame 25 is rocked towards and away from the grinding wheel about the pivot 28 as it is moved past the grinding wheel by engagement of a cam 53 on the frame 25 with a roller 55 on the slide 37, a cylinder 56 retaining the cam and roller in engagement. A timing device limits the number of reciprocations, an automatic feed device indexes the blade forwardly after each reciprocation, and a device returns the blade to its initial position after grinding. Soluble oil is supplied to improve the grinding.
Patent GB-256366-A (GB)
Title: Improvements in and relating to apparatus for heating and melting asphalt, bitumen, and like substances
IPC: C10C3/12
Filed: 1925-06-17
Abstract: 256,366. Braham, W. E. June 17, 1925. No Patent granted (Sealing fee not paid). Cauldrons.-The stiff or solid bitumen or like material to be heated is charged on to a hollow tray g having a curved or ridged upper surface, the furnace gases being circulated through the tray and the melted material flowing from the roof of the tray into the boiler proper. Flue spaces are formed between the pan a and the outer casing b by partitions p, s, and dampers f, n permit the flue gases to pass through the tray to a chamber h and thence backwards and forwards in the direction of the arrows until they finally escape by a chimney r. After the charge on the tray is melted, the damper f is closed and a damper d opened to heat the contents of the pan further. The draw-off pipe t is kept hot by the flow of hot gases in the flue q. The upper structure k, fitted with charging doors m, is hinged at l to expose the tray for cleaning.
Patent GB-1013450-A (GB)
Title: Improvements in abrasive blasting machines for cleaning wire or rods
Inventor: CAMPBELL JOHN ALEXANDER
IPC: B24C3/14
Filed: 1963-04-20
Abstract: 1,013,450. Blasting. ST. GEORGE'S ENGINEERING Ltd. April 15, 1964 [April 20, 1963], Nos. 15661/63 and 28262/63. Heading B3D.  An abrasive blasting machine for the continuous cleaning or descaling of wire or rod has three or more abrasive throwing wheels arranged around the cleaning or descaling chamber at equal or substantially equal angular distances apart, all the wheels being in the same plane so that any given length of the wire or rod is acted on simultaneously by the abrasive from all the wheels; one of the throwing wheels may be substituted by a deflecting device on to which the abrasive from the other wheels falls and is deflected back on to the wire or rod. Wire or rod w pulled through a closed chamber A, Fig. 1, is cleaned by abrasive projected by throwing wheels C<SP>1</SP>, C<SP>2</SP>, C<SP>3</SP>. The wheels may be individually driven by motors D<SP>1</SP>, D<SP>2</SP>, D<SP>3</SP> or through belt or other gearing by a common motor. Spent abrasive passes through an outlet at the bottom of the container into a hopper a and is then returned to a hopper B feeding the wheels through pipes b<SP>1</SP>, b<SP>2</SP>, b<SP>3</SP>.  Alternatively, two wheels C<SP>1</SP>, C<SP>2</SP>, Fig. 3, are used in conjunction with a deflecting device E situated below the wire or rod to cause ricochet of abrasive on to the part of the surface not directly in the path of the abrasive projected by the wheels.
Patent GB-185818-A (GB)
Title: Improved tool or apparatus for bending metal fabric
IPC: B21D11/12
Filed: 1921-06-07
Abstract: 185,818. Monagrhan, E. M., and Rigby, R. June 7, 1921. Angular bending.-A tool for bending metal fabric of the type consisting of longitudinal and transverse wires for use particularly as a reinforcement for concrete, comprises a series of hooks or like means which are passed through the fabric and moved laterally to engage adjacent strand wires, a plate or the like to engage the fabric in a line parallel with the hooks, and means such as a handle for causing the hooks and plates to exert oppositely-directed pressures on the fabric to bend the intervening portion of the strand wires. A tool as shown in Figs. 2 and 3 for bending the fabric so that the portion 3, Fig. 1, between the beams 5 is near the bottom of the slab 7 whereas the portions 9 are near the top thereof, consists of a bed-plate 11 provided with a series of integral or detachable hooks 13, a guide 15 projecting slightly beyond the hooks, and a handle 26. The plate is slotted at 24 for the connection of a bending-plate 18, adjustable to vary the length of the bend. A leg 30 pivoted to the handle at 28 embraces a perforated quadrant to which it is secured by a screw 36 to vary the angle of the bend. The tool is placed over the fabric with the last of the series of wires to be bent against the guide 15 and is then lowered so that the wires pass through the slots 16 and is then moved laterally. The wires are bent by operating the handle, between the edge of the plate 18 and the hooks, and the bend is completed when the leg 30 engages the floor &c. on which the fabric rests. The hooks 13 are bevelled at 13* to facilitate removal of the tool after bending. The portion of the fabric projecting beyond the hooks is then pressed down, or this may be effected during bending of the fabric if the opposite bends in the fabric are effected at the same time by two tools operated by different operators. In the form shown in Fig. 6 this operation is performed at the same time as the bending operation by pivoting the handle 26* to the plate 11 at 40 and providing it with a cam projection 42 in engagement with a pivoted presser 48. The handle is normally held upright in relation to the plate 11 by a spring 50, which also holds the presser 48 elevated so as not to impede threading of the tool on the wires. The angle of the bend formed beyond the hooks is adjusted by a block 52 connected by slots and clamping-bolts to the handle and having teeth engaging similar teeth on the handle to assist the clamping-bolts.
Patent GB-291958-A (GB)
Title: Improvements in or relating to composition fuel
IPC: C10L5/10
Filed: 1927-08-08
Abstract: 291,958. Mills, H. V. T., and Noble, V. d'O. Aug. 8, 1927. Composition fuel bricks consist of a mixture of small coal, cement, sawdust, and creosote. Small quantities of resin and saltpetre may be added. 40-60 lbs. of cement are mixed with 250 lbs. of coal, 4¢ lbs. of sawdust, # pint of creosote, and 30-10 lbs. of water.
Patent GB-519061-A (GB)
Title: Improvements in or relating to structural elements and parts of aircraft
IPC: B64C3/00
Filed: 1938-05-25
Abstract: 519,061. Plywood. JABLONSKY, E. May 25, 1938, No. 15668. [Class 145 (ii)] [Also in Group XXXIII] A structural element comprising plane sheets 7, 8 and a corrugated sheet 9 is composed of laminated wood sheets, secured together by adhesive and shaped and densified under high pressure to a density of 0À9 or more. Alternatively, one plane and one corrugated sheet may be used, or the corrugated sheet may have angular bends, or may be replaced' by channel members facing alternately in opposite directions. Specification 493,145 is referred to. Reference has been directed by the Comptroller to Specification 493,145, [Group XXXIII].
Patent GB-1097026-A (GB)
Title: Lock for the beak of a knot-tying device
IPC: B65B13/26
Filed: 1966-04-07
Abstract: 1,097,026. Knot-tying devices. B. H. BUNN CO. April 7, 1966 [May 4, 1965], No. 15741/ 66. Heading D1C. In a knot-tying device the beak is maintained in a predetermined position when not rotated. The beak 12 is driven by intermeshing shafts 13, 17 by a sector gear 19 via pinion 18. A plunger 26 mounted in the frame is normally urged outward by a spring 28 so that a projection engages between adjacent teeth of the pinion. A cam fixed to the sector forces the plunger inwards against the spring when the beak is to be rotated.
Patent GB-852758-A (GB)
Title: Improvements in or relating to reciprocating pumps for use with windscreen washers
IPC: B60S1/48
Filed: 1958-05-16
Abstract: 852,758. Windscreen cleaning systems. MOLENAAR, H. C. May 16, 1958 [May 18, 1957], No. 15786/58. Class 138(1). [Also in Group XXVIII] A reciprocating pump, for use with a windscreen cleaning system for automobiles, comprises an operating member shown as a diaphragm 3 mounted on an operating rod 8 and urged by spring 10 to the end position of its discharge stroke. A resilient member, such as a diaphragm 34, is arranged between in the pump chamber between diaphragm 3 and the discharge opening 37 to substantially prevent discharge of the liquid from the pump chamber when the diaphragm 3 occupies a position between its end position and a position a predetermined distance away from the said end position, liquid being discharged only slowly during this period of substantial closure either through a groove adjacent the discharge opening or back into the liquid inlet 14 past a groove adjacent the inlet valve 15. In Fig. 1, which shows the pump diaphragm at a position prior to the end of its discharge stroke, the pump incorporates means to connect a source of electric power to a windscreen wiper motor, comprising insulated contact strips 30 connected, during the early part of the discharge stroke by a contact ring 29 carried by a dished plate 27 and urged against the contact strips 30 by spring 24. After the discharge of liquid has been substantially prevented by diaphragm 34 but before the end of the discharge stroke a flange 26 on the end of tube 25 engages the dished plate 27 cutting off the current to the windscreen wiper motor. In a modification, Fig. 2 (not shown) contacts 39 are carried by resilient blade springs and normally engage an insulated contact ring, being forced away therefrom by the flange 26 when the diaphragm approaches the end of its discharge stroke. In Fig. 3, which shows the diaphragm 3 at the end of the discharge stroke, the apparatus as modified to control a vacuum operated motor, the motor and a source of vacuum being connected respectively to ducts 47 and 48, the operating rod 8 being provided with a number of annular grooves 49 placed apart a distance shorter than the height of chambers 45, 46 so that the motor is connected to the vacuum source continuously during its required period of operation.
Patent GB-932596-A (GB)
Title: Improvements in fishing line reels
IPC: A01K89/01
Filed: 1958-05-16
Abstract: 932,596. Fishing reels. R. HUMBLE. Aug. 13, 1959 [May 16, 1958], No. 15833/58. Class 48. In a fishing reel having a bail 1 for winding the line on to a reciprocating drum, the bail can be displaced from its winding in position to a position clear of the line for casting by a lever 40 and the bail is returned automatically to its winding position when winding-in is commenced. One end of the bail has an eye 20 pivoted to a flyer 3 and its other end is secured to a plate 69 pivoted about a screw 19 projecting from the wall of the flyer. A spring 71 acts on the plate 69 to urge the bail into the casting position and the bail is held in the winding-in position by a nose 53 on a slidable plate 52 engaging in a notch in the disc 69. The slidable plate 52 is guided by a rectangular projection 56 on a transverse disc 10 of the flyer and is urged outwardly by a bow-spring 54. The slidable plate 52 is withdrawn inwardly to release the bail 1 by an annular cam 48 which engages a curved tongue 55 on the sliding plate and is actuated by a lug 46 on the operating lever 40 engaging a shank 47 on the annular cam. The inward movement of the sliding plate moves a crownwheel 58 slidably mounted on the screw 19 into engagement with a non-rotatable spur pinion 29 so that when the flyer is again rotated the crown wheel 58 rotates and a part-cylindrical detent 66 on the bush of the crown-wheel engages a similar detent 67 on a bush secured to the disc 69. In consequence the bail is rotated until the nose 53 on the sliding plate 52 enters the notch in the disc 69. The outward movement of the sliding plate disengages the crown-wheel 58 and fixed pinion 29 and a spring 64 rotates the crown-wheel to disengage the two detents 66, 67 so that the bail can be moved to the casting position when next the lever 40 is operated. The flyer is rotated by a mechanism including a spiral pinion 6 engaged by a spiral gear-wheel mounted on a shaft having a winding handle. The drum is reciprocated by a bell-crank lever oscillated by a cam on the spiral gear-wheel. Instead of the crown-wheel 58 and the fixed pinion 29 a pair of bevel wheels may be provided and the non-rotatable one may be axially displaceable and serve as the annular cam 48. The sliding plate may be replaced by a bell-crank lever.
Patent GB-1268746-A (GB)
Title: Ethers and quaternary salts
IPC: D06M13/165
Filed: 1970-04-03
Abstract: 1,268,746. Proofing against soil, water coil. FMC CORP. 3 April, 1970 [4 April, 1969], No. 15855/70. Heading DIP. [Also in Division C2]  Woven or non-woven fibrous materials are rendered oil-and water-repellent and soil-resistant by treatment with a compound of formula [R f  (CH 2 ) n  (OR) m  OCH 2 A]<SP>+</SP>X<SP>-</SP>, in which R f  is a C 4-16  perfluoroalkyl group, R is a C 2-3  alkylene group, X is chlorine or bromine, A is a radical of a tertiary nitrogenous base bonded through the nitrogen atom, n is 1 to 12 and m is 1 to 4. Substrates specified are wool, cotton, rayon and acetate fibres and paper, leather, wood, and felt. Treatment is preferably effected by application in aqueous medium at a pH of about 6, followed by drying, heat-fixing, washing and drying.
Patent GB-788843-A (GB)
Title: A new or improved lifting device for overhead travelling cranes
IPC: B66C13/00
Filed: 1956-05-23
Abstract: 788,843. Cranes. PINGON, P. J. May 23, 1956, No. 16030/56. Class 78 (4). A crab 7, which travels on rails 3 on a crane jib 2, carries three pulleys 8, 9, 10, and the hoisting cable 15 passes over pulley 8, then under a pulley 13 from which a load hook 11 is suspended, over pulley 9, under a pulley 14 from which a second load hook 12 is suspended, and finally over pulley 10. Normally, hook 11 is locked to the crab by a device 16 by operated means of a hand wheel 17 and only hook 12 is used, but on releasing hook 11 and adding a yoke 18, double-weight loads may be carried without increasing the tension in the cable.
Patent GB-594044-A (GB)
Title: Improvements relating to driving mechanism of tricycles
IPC: B62K9/02
Filed: 1945-06-23
Abstract: 594,044. Driving - mechanism for tricycles. PHILLIPS & CO., Ltd., J. A., and WINSPER, T. June 23, 1945, No. 16079. [Class 136 (ii)] The hub 10 of a tricycle wheel which rotates with the spindle 11 comprises a barrel portion 19 and end pieces 20, 21 the latter of which has an internally screwed reduced bore 23 in engagement with the correspondingly threaded reduced part 16 of the end of the spindle. The end cap 25 screws on to a reduced part of the end piece 21 and encloses a lock nut 27 which screws on to the end 17 of the spindle. The screw threads on the parts 16, 17 are preferably of .opposite hand.
Patent GB-574225-A (GB)
Title: Improvements in or relating to linear dimension gauges
IPC: G01B3/22
Filed: 1943-10-01
Abstract: 574,225. Gauges. CAPP, A. Oct. 1, 1943, No. 16121. [Class 106 (ii)] A linear dimension gauge comprises a feeler arm 23, Figs. 3 and 7, connected by a spring clip 26 to a lever arm 21 pivoted at 24 to the base-plate 10. The lever arm 21 has a slot 20 engaging a pin 19 projecting from the hub of a pointer 15. The looped end of a spring 30, Figs. 3 and 8, embraces a pin 40 on the lever arm 21 and the other end of the spring is attached to a disc 31 which can be turned by a knurled knob 321 projecting from the casing so as to urge the pointer 15 to one or other side of the scale 28 according to which side of a notch 33 in the disc 31 presses against a fixed pin 34. In operation, the gauge is clamped to a work table by means of a bar 41, Fig. 3, projecting from a sleeve 42 secured by a screw 43 on a post 44 fixed to the base-plate 10 and the adjusting knob 32<1>, and so the lever arm 21, is set into one or other of its extreme positions according to the position of the surface to be gauged. The gauge is then set so that when the feeler arm 23 is in contact with an exactly true part of the surface to be gauged, the pointer 15 is over the central zero of the scale 28. By moving the work or gauge, any deviation from trueness is indicated. Specification 468,243 is referred to.
Patent GB-1357995-A (GB)
Title: Piston and slide-shoe assembly for hydraulic piston machines
IPC: F01B1/06
Filed: 1972-04-07
Abstract: 1357995 Reciprocating pumps ROBERT BOSCH GmbH 7 April 1972 [17 April 1971] 16167/72 Heading F1A [Also in Division F2] A piston and shoe assembly for a hydrostatic machine of radial or axial piston type, comprises a piston 3 with a part-spherical or cylindrical end face 17 slidably engaging a correspondinglyshaped surface 18 on a shoe 4, the piston and shoe being positively connected by a connecting element. In the embodiment shown, the connecting element 7 comprises an annular portion 10 centred on the centre of curvature of the piston and shoe sliding engagement surfaces, and web portions 7' with hooked parts 7" engaging a recess in the shoe. A flat portion of the end face 17 defines a pressure chamber between the piston and shoe for hydrostatic relief of the piston. Guide rings 8, 9 hold the shoe on a ring 6. In Fig.2 (not shown), the connecting element is a screw extending from the shoe into the piston and secured in the piston by a spherical nut permitting tilting of the piston, the screw having a restricted bore connecting the working cylinder to a recess in the shoe face. In Figs 3a and 3b (not shown), the shoe has an integral hollow stem extending into the piston, a disc being slidably mounted on the stem in the piston and having a spherical surface engaging a corresponding surface in the piston, the surfaces being biased together by spring washers on the stem. In Figs. 4a and 4b (not shown), a member (45) extends from the shoe into the piston and is secured to the piston by a transverse pivot pin (44), a restricted orifice (42) connecting the piston interior to the working chamber. In Figs. 5a and 5b (not shown), a hollow rivet (52) extends from the shoe into the piston and has a partspherical head (53) slidably engaging a corresponding surface in the piston, a spring (55) in the working chamber biasing the piston on to the shoe. In Figs 6a and 6b (not shown), a centrallybored bolt (71) extends from the shoe into the piston and has a part-spherical head (77) engaged by a corresponding surface on a spring-loaded member (76) slidable in the piston.
Patent GB-823915-A (GB)
Title: Improvements in distillation apparatus
IPC: B01D3/00
Filed: 1958-05-20
Abstract: <PICT:0823915/III/1> A distillation plant comprising an evaporator 1 and a condenser 9 has a cyclone 3 for separating liquid from vapour mounted above the evaporator.  Large liquid particles discharging from the evaporator are trapped by a baffle 10.  The separated vapour from the cyclone flows through a pipe 8 to a condenser 9.
Patent GB-761439-A (GB)
Title: Improvements in or relating to metal envelope cathode ray tubes and mountings therefor
Inventor: COLBORNE RONALD HENRY
IPC: H04N5/645
Filed: 1953-06-12
Abstract: 761,439. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 22, 1954 [June 12, 1953], No. 16181/53. Class 39(1). A metal body cathode-ray tube is supported by insulators 2 secured to the body either directly e.g. by sealing in cup-shaped depressions in the body, or by means of intermediate members e.g. by screwing into cup-shaped members welded or brazed to the body. The insulators may be of glass or of porcelain with an intermediate glass or metal solder. The tube may be resiliently supported in a cabinet by springs attached to eyes 4 on the ends of the insulators, or else the insulators may be bolted to the cabinet.
Patent GB-830630-A (GB)
Title: Improvements in the production of lactams from oxime hydrochlorides
Filed: 1957-05-22
Abstract: A process for the production of lactams comprises allowing a sulphuric acid of 80 to 100% by weight which may contain up to 50% by weight of free sulphur trioxide dissolved therein to act on a hydrochloride of a cycloaliphatic ketoxime having a ring member number of 5 to 10 carbon atoms.  A proportion of lactam may be added to the reactants to initiate the reaction.  The reaction mixture may be neutralized with aqueous alkali metal or alkaline earth metal hydroxides or concentrated ammonia solution or gaseous ammonia.  The liquid hydrochlorides formed by treating crystalline cycloaliphatic oxime hydrochlorides with hydrogen chloride may be employed as starting materials.  Oximes, of which the hydrochlorides may be employed as starting materials, specified are cyclopentanone, cyclohexanone, methylcyclohexanone, cycloheptanone, cyclooctanone and cyclodecanone.  The preparations of o -caprolactam, o -valerolactam and o -aenantholactam are described.
Patent GB-708601-A (GB)
Title: Microwave wire and cable
IPC: H01B7/00
Filed: 1952-06-27
Abstract: 708,601. High frequency transmission lines. STANDARD TELEPHONES & CABLES, Ltd. June 27, 1952 [June 30, 1951], No. 16253/52. Addition to 704,050. Class 40 (8) Arrangements are shown for diminishing losses in transmission lines as described in the parent Specification. In Fig. 2 the ground conductor 7 is continued as a coating on to the sides 8 and 9 of insulation 3 to enclose line conductor 1 in a trough. Two of such lines may be arranged using each side of a common ground conductor. In Fig. 4 an air space 20 is left between conductors 1 and 2. In Fig. 8 a number of line conductors 34 are spaced around a cylindrical ground conductor 33. Further line conductors 38 may be provided within conductor 33.