baber/WOPTO huggingface dataset:
Patent GB-1462392-A (GB)
Title: Switch arrangement
IPC: H01H35/34
Filed: 1974-01-19
Abstract: 1462392 Fluid actuation of switches GARDOM & LOCK Ltd 25 Nov 1974 [19 Jan 1974] 2638/74 Addition to 1453612 Heading H1N In a differential pressure switch of the type described in Specification 1,453,612 the seal 17 for preventing leakage through the aperture in the end wall 26 of the casing 13 is defined in a cylindrical portion 28 surrounding the plunger 25 and joining a diaphragm portion 47A movable with the plunger 25 to an end portion 29 which sealingly engages the end wall 26. A flange 29 of the seal 17 is clamped between the end wall 26 and a hollow cylindrical head 30 of a guide 27 for the plunger 25. A head of the plunger 25 is trapped between the diaphragm 47 and diaphragm portion 47A of the seal 17, each of which has an annular corrugation 21 and a thickened rim 18.
Patent GB-162389-A (GB)
Title: Improvements in or relating to tamping presses for hollow concrete and other blocks
IPC: B28B1/04
Filed: 1920-01-28
Abstract: 162,389. Hermoye, O., and Glorian, C. Jan. 28, 1920. Addition to 162,376. Moulds; tamping-machines.- In a tamping-press for hollow concrete blocks as described in the parent Specification, improved means for removing the block from the perforated plate and from the mould are provided, and the action of the cam-operated plungers or the casing carrying them is assisted by means of an hydraulic hammer and system of levers. A casing d, carrying the mould or rollers e, is adapted to be raised by cams f and handle a to raise the block from the perforated plate 22 for removal. The mould consists of two ends i and one side h, permanently hinged at k, the remaining side l being attached by removable hinge pins o, on removal of which the shell may be detached from the block. One form of the mechanism for assisting the action of the plungers is shown in Fig. 7. A lever 57 is attached to the tamping-plungers or their casing at 60, the other end slides in an horizontal guide 56, and at the middle, the rod pivots on a link 58 having a fixed pivot 59. A link 52 carrying a reservoir 51 exhausted and partially filled with liquid is pivoted at 55 to the rod 57 and connected to the frame by a link 53. When the plungers ascend, the position of the links is that shown in dotted lines and the motion of the liquid in the reservoir is stated to assist the return motion of the plungers. In a modified arrangement shown in Fig. 9, one of two pairs of twin levers 57, 57', guided horizontally at 56 by a carriage 56<1> carries the hydraulic hammer 51. The levers are connected at their upper ends to the plunger casing and at their centres to the frameby links 70. The cam shafts have meshing pinions 66 fast thereto and are driven by roller chain gearing from the pulley 69 through intermediate chain-wheels at the middle point of the lever 57. The tamping may be operated by hand by removing the cam shafts.
Patent GB-1063154-A (GB)
Title: Improvements in roller coverings
Inventor: HALLAM WILLIAM GORDON
IPC: F16C13/00
Filed: 1965-01-21
Abstract: 1,063,154. Rollers. GREENGATE & IRWELL RUBBER CO. Ltd. Dec. 16, 1965 [Jan. 21, 1965], No. 2760/65. Heading F2U. A soft rubber roller coating, of the order of 20 BSH, is produced by forming a premix of a polyvinyl chloride polymer, allowing it to gel and cool, mixing with a blend of nitrile rubber, milling the resulting composition and vulcanizing it on a core cylinder. The premix may comprise a P.V.C. polymer with a stabilizer and plasticizer (proportions given), the mixing lasting for 15-20 minutes, and the mixture then being poured into a tray and allowed to gel at 130‹ C. in air for 30 minutes. The rubber blend consisting of butadiene acrylonitrile, zinc oxide, stearic acid and an accelerator is mixed for 4 minutes, after which clay and the premix are added and mixed for a further 3 minutes, sulphur then being added and the mixture milled. Calendered sheets of the material are vulcanized on the core cylinder.
Patent GB-1141133-A (GB)
Title: Improvements in method of extruding tubular articles
Inventor: DANIELS FRANKLIN WASHBURN
IPC: B21C23/20
Filed: 1967-01-18
Abstract: 1,141,133. Extruding; making capacitor cases. GENERAL ELECTRIC CO. 18 Jan., 1967 [8 March, 1966], No. 2769/67. Headings B3A and B3P. Tubular articles of oval cross-section, particularly capacitor cases of elliptical section, are made by extruding a lubricated zinc alloy blank 15, heated to at least 100 C. but less than 150 C., in a die cavity 21 by pressure which is greater adjacent the portions of lesser radii so as to produce uniform flow of material in the tubular wall. The blank is of coppertitanium-zinc alloy heated in an oven or furnace to 125 C. Backward extrusion pressure is applied by a punch 19 having recesses or grooves 27 to restrict flow along the longer sides of the ellipse. After extrusion, the case is finished by trimming the top edge and forming thereon a flare (9), Fig. 1 (not shown).
Patent GB-194875-A (GB)
Title: A device for cutting off pieces of cheese, lard, soap or similar substances accurately to weight
IPC: B26D3/24
Filed: 1922-01-31
Abstract: 194,875. Oliver, E. H. Jan. 31, 1922. No Patent granted (Sealing fee not paid). Butter and cheese cutters.-An apparatus for cutting up cheese, lard, soap, &c. accurately, by weight ccmprises a support, a cutter and a stop adjustable relatively to the cutter, associated with means for gauging the height and width or radius of the substance and a calculating-device for defining the position of the stop. The stop and height gauge may be combined in the form of an L-shaped member. As shown, for cutting-up circular cheeses, the support comprises members A, A<2> separated by a slot A<3> adapted to accommodate a cutting-wire &c., the member A<2> carrying a radial stop B and being provided with rows of holes D, D<2>, D<3> or other gauge marks approximately labelled to indicate their distance from the slot A<3> and also their radial distance from the edge C<2> of the stop which lies in the plane of the slot. The stop B is furnished. with a shoe, B<2> sliding in a curved slot A<6> about the edge C<2> as centre and may be, furnished with a clamping-lever B<4> or clamping-screw. An upstanding portion C of the stop constitutes the height gauge. The calculating-device is in the form of a slide axle having fixed scales E<2>, E<4>, and movable scales E, E<3> on a slide. F, the scales E, E<2>, E<3> corresponding to the height, radius and distance, from the slot A<3>, whilst the scale E<4> indicates the weight of substance. To permit of adjustment for different specific gravities, the scales E, E<3> are relatively adjustable by means of a dotted connection F<3> &c. In use, the cheese is divided and placed against the stop with its centre against the edge C<2> and its height and radius determined; from the scales E<3>, E<4>, the stop can then be set for a particular weight. For cutting rectangular portions from a bar &c., the stop B is mounted so as to move parallel to the slot A<3> and the radial gauge and scale are replaced by a width gauge and scale.
Patent GB-717409-A (GB)
Title: Improvements relating to anti-dazzle filters and to black-out devices for vehicle headlamps
IPC: F21V11/00
Filed: 1951-08-06
Abstract: 717,409. Anti-dazzle devices. COSSLETT, L. H. Aug. 6, 1951, No. 2851/51. Class 75 (4). An anti-dazzle filter for a vehicle headlamp is constructed of translucent material and comprises spaced concentric frusto-conical rings 1 mounted on a cross-piece 2, formed at the intersection of the cross with a disc 3 having a frustoconical periphery parallel to the ring surfaces. The outer ring 1 has a flange 5 adapted to be fitted between a reflector and a glass cover of a headlamp. For use as a black-out device the filter may have fitted against one side thereof an opaque mask having a central circular aperture.
Patent GB-538905-A (GB)
Title: Improvements in and relating to appliances for mixing and distributing liquid disinfectants or other fluids
IPC: E03D9/03
Filed: 1940-02-15
Abstract: 538,905. Mixing. HALL, D. G. Feb. 15, 1940, No. 2858. [Class 86] [Also in Group I] In an appliance for supplying a measured quantity of disinfectant or similar fluid to a cistern at each operation thereof, the fluid feeds by gravity from a reservoir 2 through a discharge conduit 5 to a measuring chamber 6 with inlet and outlet valves 10 and 11 operated by movement of a float 13 in a cage 9. The float is so placed that the outlet valve 11 is opened before the cistern, is completely filled, so that thorough mixing is effected by agitation due to incoming water, and an air vent 14 may be provided to prevent air locks in the pipe 5.
Patent GB-584901-A (GB)
Title: Improvements relating to containers for housing electric connectors of the kind known as line taps
IPC: H02G15/113
Filed: 1945-02-05
Abstract: 584,901. Cases for couplings. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and MOOR, E. Feb. 5, 1945, No. 2903. [Class 38 (i)] A moulded insulating housing for a line tap comprises a cover 1 and base 2 both rectangular in plan but having the side walls curved outwardly. Flanges 10, recessed at 8, and cooperating projections 7 on the side, or, as shown, end walls, enable interfitting of the two parts by inclining the cover 1 to engage one projection and then snapping the other into place, as permitted by the curved walls. The cable entries are provided on the side walls by cut-away parts 12, 13, with thickened edges, but according to the Provisional Specification, one entry may be provided by pressed-out portions.
Patent GB-893486-A (GB)
Title: Improvements in or relating to flyers for bobbin and flyer frames
IPC: D01H7/30
Filed: 1959-01-27
Abstract: 893,486. Spinning machines. SCHWAGER, H. G. Jan. 27, 1959 [Jan. 27, 1958; Nov. 25, 1958], No. 2923/59. Class 120(2) A flyer comprises a limb and two arms 4, 5 with a presser 12 and counterweight 11 pivoted on the arm 5 which has a passage with a slit opening 10 extending along its length on one side and on the opposite side has a deep groove formed between two ribs 8, 9 the cross-section of the arm 5 and counterweight 11 being shaped for minimum air turbulence. The presser 12 which has an insert 20 of friction-resistant material at the part in contact with the spool, and the counter-weight 11 are pivotally attached to the arm at the upper and lower end of the counterweight. The flyer is coupled to a spindle by means of a drag plate which is push-fitted between two grooves in a sleeve fixed to the arms 4, 5 and engages in a slot in the spindle. The upper end of the slit 10 is inclined to the direction of the air stream to set up a counter pressure of air against the pressure due to centrifugal force. The end of the arm 4 is bored out to receive ballast weight
Patent GB-831397-A (GB)
Title: Improvements in slurry removal systems
IPC: C02F5/02
Filed: 1958-01-29
Abstract: 831,397. Gravity-separation apparatus. UNITED STATES BORAX & CHEMICAL CORPORATION. Jan. 29, 1958 [June 5, 1987], No.2939/58. Class 46. [Also in Group XXVIII] A slurry of crystals of, e.g., potassium chloride is received in a suspension vessel 20, Fig. 1, from a vaporiser 10 and a concentrated slurry is removed from the vessel through a passage 30 and a valve 34, clearing liquid being continuously supplied to the passage 30 above the valve (e.g. from the top of the vessel via pipes 24 and 57 and pumps 26) at a rate which maintains the passage free of slurry when the valve is closed. The slurry is delivered to a receiver tank 43, whence it is discharged to a centrifugal pump 51 on its way to a filter or centrifuge 55, by a jet of liquid introduced at 64, Fig. 2, and preferably derived from the pump 26 via pipe 60. The valve 34 is preferably opened periodically (e.g. 4 cycles per minute) by a timing control device 36 connected by a pneumatic duct 37 to the valve. The ratio of open time to shut time may be between 1/5 and 3/5.
Patent GB-1177381-A (GB)
Title: Complementary Field-effect Transistor Integrated Circuits
IPC: H01L27/092
Filed: 1967-01-19
Abstract: 1,177,381. Integrated circuit construction. RCA CORPORATION. 19 Jan., 1967 [24 Feb., 1966], No. 2982/67. Heading H1K. A monolithic semi-conductor integrated circuit comprises a substrate containing a complementary (i.e. opposite connecting types) pair of insulated gate field effect transistors. Fig. 1 shows an N-type substrate 2 with a first F.E.T. comprising P-type source 6 and drain 8 regions and gate electrode 18 on simulating layer 16 over channel region 10. The second F.E.T. comprises N-type source 22 and drain 24 regions in P-type zone 36 with gate electrode 34 over insulating layer 32; the production process is fully described. P-type zone 36 is produced by diffusing boron in two stages (the upper surface of the oxide masking being removed after the first stage) into a 5 ohm cm. N-type silicon wafer 2. Masking, deposition and diffusing techniques utilizing boron nitride and phosphorus pentoxide are used to provide source and drain regions 6, 8, 22 and 24. The channel insulating regions 16 and 32 are provided by passing dry oxygen to form a first oxide layer 500 which, depositing a 200  layer of doped oxide by decomposition of a mixture of tetraethylorthosilane, trimethylphosphate and argon and then growing a third 100  thick layer of silicon dioxide; after the first and last oxidizing step the dimer is cooled in dry oxygen. The doped layer discourages the formation of an uncontrolled channel inversion layer. Photoresist masking is used to expose the source and drain regions to ion bombardment in argon which improves adherence of aluminium which is then evaporated on to form contact electrodes. The treatment is repeated to provide gate electrode 18 and a thicker aluminium coating on regions 6 and 8 and the aluminium layers are then alloyed to form ohmic contacts. A third ionic bombardment is used to create acceptor sites in the channel oxide layer 32 to facilitate formation of the N-type inversion layer and another coating of aluminium is provided forming the source, drain and gate electrodes. The semi-conductor material may consist of Ge, Si, or GaAs. Fig. 11  shows an inverter circuit utilizing the device. The two gate electrodes are connected to input lead 94 and the two drain electrodes connected together by lead 96. P-type source electrode 82 is connected to a potential Vb. If V b  is applied at input 94, P-type channel transistor 3 is cut off and N-type channel transistor 5 conducts to provide zero volts at output 98; similarly zero volts at input 94 means the P-type channel conducts and the N-type channel is cut off to provide potential V b  at output 98.
Patent GB-1384715-A (GB)
Title: Counting devices for working cycles
IPC: G06M3/02
Filed: 1972-01-21
Abstract: 1384715 Registering output of machines W ZINDLER [trading as LUMOPRINT ZINDLER K G] 21 Jan 1972 [1 Feb 1971] 3030/72 Headings G4D D1B2A and D1D5 In a device for counting the working cycles of a machine comprising a drive wheel 7 adjustable in accordance with a required number of working cycles, and delivering a signal when that number has been reached, an element 12 rotating in accordance with the working cycles of the machine has a drive member 11 arranged to drive the drive wheel 7 of a stepping unit, adapted to idle in the zero position of the counting device and having a cam track 13 with a recess 18 in which a signal lever 20 engages in the zero position of the counting device to deliver the signal. A counting device for a copying machine has a shaft 6 freely rotatable between a plate 1 and an arm 3 of a bracket 2, the shaft 6 has firmly mounted thereon the driving wheel 7, disc 8 and hub 15 of a pointer 16, the arm 13 carries a scale 17 corresponding to arcuate recesses 9 forming toothing which is interrupted at the zero position by a larger recess 10 and the disc 8 having a profile 13 corresponding with the toothing 9. A crank shaped cam 11 mounted on a roller 12 of the copying machine rotating for one revolution for each working cycle engages the recesses 9 for the intermittent drive of the wheel 7 which, with the disc 8, is locked in each position, including the zero position, by a roller 19 engaging the toothing 13. If single copies are required the counting device idles with the cam 11 inoperative within the recess 10 of the drive wheel 7 but if the pointer is set to indicate on the scale 17 the number of copies required, the wheel 7 will be driven intermittently counting down until at zero position the roller 19 enters the recess 18 and locks the drive wheel 7. The roller 19 which is rotatably mounted on a pivoted arm 20 is urged towards the cam profile 13 by a spring 22 and the tension released when the roller 19 enters the recess 18 causes the head 26 of a resilient hammer 25 to strike a bell 14 mounted on the shaft 6. The copier shown in Fig. 4 has the roller 12 provided with a flat 29 above which is continuously rotated a counterpressure roller 28 coupled by a belt 38 to roller 36 positioned above a stack of sheets 30. When the apparatus is switched on power through a switching arm 42 actuates a magnet 39 controlling a coupling 37 causing the roller 36 to engage a sheet and deliver it between the rollers 12 and 28 where it deflects the switching arm into engagement with contact 41 coupled to switch 33 at the same time causing roller 36 to become disengaged. When an original is fed between rollers 44, 45 it deflects switch 33 thereby actuating magnet 32 which releases lever 31 from recess 48' in the roller 12 whereby a spring 35 causes the roller 12 to rotate so that it engages the sheet with the continuously rotating roller 28 to deliver it simultaneously with the original into a treatment section 46.
Patent GB-1267492-A (GB)
Title: Polycarbonate resin stabilized with an epoxidized cycloaliphatic compound
Inventor: CALKINS THORNTON ROSS
IPC: C08K5/1515
Filed: 1970-01-22
Abstract: 1,267,492. Stabilized polycarbonates. GENERAL ELECTRIC CO. 22 Jan., 1970, No. 3142/70. Addition to 1,138,384. Heading C3R. Polycarbonate resins of dihydric phenols are colour stabilized by adding to the resin from 0.01 to 0.5 weight per cent of an epoxidized cyclo-aliphatic compound containing up to 30 carbon atoms and 1 or 2 cyclo-aliphatic rings with six carbon atoms. In the examples, the polycarbonate of Bisphenol A is blended with 3,4 - epoxy - cyclo hexylmethyl - 3,4 - epoxycyclohexane carboxylate.
Patent GB-489724-A (GB)
Title: Improvements relating to smokers' ash receptacles
IPC: A24F19/06
Filed: 1937-02-03
Abstract: 489,724. Smokers' ash receptacles. REID, L. H. Feb. 3, 1937, No. 3184. [Class 130] An ash receptacle has a funnel-shaped aperture for the admission of debris, a pivotally mounted curved or arcuate closure plate normally lying under the aperture, and means actuated by hand pressure on the receptacle or its lid to rock the closure plate to open the aperture. In one form, Fig. 2, the receptacle 1 is provided with a vertically movable cover 2 having a central aperture 3 with a curved wall or flange 3a. The closure member 9 for the aperture 3 is secured to a cross-bar 6 having downward extensions 6a pivoted at 7 to the lower ends of depending plates 4 secured to the cover 2. Between the plates 4 and the extensions 6a of the bar 6 are triangular plates 8 flanged at 8a to bear on the wall of the receptacle and provided with projections 8b engaging in holes in the extensions 6a. On depressing the cover 2 against springs (not shown), the depression of the plates 4 carrying the pivots 7 causes the bar 6 and cover 9 to rock about the projections 8b to expose the aperture 3. In a modification, Fig. 5, the cover 2 is secured to a receptacle 1 resting on springs 17, and the closure plate 6 has extensions 6a pivoted at 13 in semicircular pockets 1c slotted at 1d. In each pocket is a lever 14 pivoted at 15 and having an elbow 14a resting on a base 16. On depressing the receptacle, the levers 14 are tilted about the pivots 15 and rock the closure member 6 about its pivots 13. In a further form, Fig. 8, the receptacle 1 is pivoted at the top to a wall plate 16, from which it is held away by a spring 20. The side plates 6a of the closure member 6 are pivoted at 13 and are connected by a rod 18, to which is pivotally connected a rod 19 bearing against the wall plate.
Patent GB-809293-A (GB)
Title: Improvements in or relating to closures for manholes and like openings
Inventor: SAINS DENNIS WILLIAM
IPC: E02D29/14
Filed: 1956-02-01
Abstract: 809,293. Manhole covers. BROADS MANUFACTURING CO. Ltd. Nov. 15, 1956 [Feb. 1, 1956], No. 3222/56. Class 123(1) A frame 10 for a manhole cover 13 has secured to its underside by bolts 24, striplike members 15 having grooves 18 for receiving resilient sealing strips 25 which are deformed to form a watertight seal between a sealing plate 26 and the members 15 when the sealing plate is secured in position by bolts 27. Grooves 19 in the members 15 are filled with mastic to form a seal between the members 15 and the cover frame 10.
Patent GB-414410-A (GB)
Title: Means for preventing freezing of the induction systems of internal combustion engines
IPC: C10L1/18
Filed: 1933-02-03
Abstract: To prevent the formation of ice in the induction-pipe of an internal-combustion engine normally using petrol or other light hydrocarbon, a hydroxyl derivative of hydrocarbon, containing less than three hydroxyl groups, is added to the petrol in the proportion of from 2 per cent to 15 per cent.  Examples given are: an alcohol, such as methyl alcohol, ethyl alcohol, or butyl alcohol, or glycol, or fused oil, or mixtures of these substances.
Patent GB-476846-A (GB)
Title: Improvements in and relating to dry surface-contact rectifiers
IPC: H01L21/08
Filed: 1937-02-04
Abstract: 476,846. Dry surface-contact rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 4, 1937, No. 3330. Convention date, Feb. 4, 1936. [Class 37] Between the semi-conductor layer h and the supporting plate t to which it is adhesively applied, a thin goodconducting intermediate layer z of metal is provided, which is chemically inert to them under working conditions of the rectifier. Between the other surface of the semiconductor h, or the blocking layer s if present, and the counter electrode g may be arranged an additional good-conducting cover layer d chemically inert to them. Suitable materials are copper for the support t, bismuth for the intermediate layer z, selenium for the semiconductor h, selenium dioxide for the blocking layer s, and for the cover layer d, tin. When multiple-cell rectifiers are to be made, with the cells in series, only one base support t may be used, the cover layer d forming the base support for the following cell, only one substantial counter electrode g being necessary, and these two main plates can be constructed as cooling plates. All the layers are provided, as far as possible, in separate working processes, for example by vaporization in a vacuum on to the base support, and these may be carried on within a single vacuum vessel the operations being performed in series, the basic support passing through the vessel like a travelling table either wholly or part automatically. The table may be of a rotating type, with all the operation for the production of a single cell performed in one revolution. For building up a series set of cells the basic support would be caused to pass through the cycle the required number of times.