baber/WOPTO huggingface dataset:
Patent GB-1532744-A (GB)
Title: Dart board
IPC: F41J3/02
Filed: 1977-05-30
Abstract: 1532744 Dartboards; darts ARACHNID INC 30 May 1977 22828/77 Heading A6S A dartboard mounted in a casing 13, Fig. 1, containing electronic circuitry (not further described) which causes the scores of individual players to be displayed on panels 14, 16, comprises a number of separate segments 23, Figs. 2, 3, 4, one for each scoring area, movable inwards against spring biass when hit by a dart and each formed with holes 24 (see also Figs. 6, 7) to receive and grip the point of a dart, the inward movement of each segment 23 momentarily closing an associated switch in the circuitry which then adds the appropriate score to the player's total. A switch 15, Fig. 1, selects which panel 14, 16 is operative. Each segment 23 is mounted within a closed-ended container 40, Fig. 4, fast with one end of a rod 45 slidable through a main support plate 33 and connected to a spring contact 46 of a small switch 49 momentarily closed when the segment is hit by a dart, the spring contact then opening the switch and pushing the segment back to its initial position. The holes 24 in the segments 23 taper, to grip the dart tip, and have bevelled lead-in edges 25. The segments 23 are made of plastics, and fit within and are shaped to holes in a plastics fret 34. In a modification, a main support plate 33', Fig. 10, carries behind each segment 23' at least one pair of printed circuit contacts 60, 61 bridged by corresponding contacts 66 mounted on raised segments 65 of a rubber, &c. resilient sheet 64 when a dart hits the segment. Darts:-A dart 11, Fig. 10, for use with the dartboard, has a tip 20 made from a flexible plastics and a point 21 which is blunt, so that the dart is safe for children, &c to play with. The dart body 17 is of wood or plastics, and has flights 19 constituted by feathers or made of plastics.
Patent GB-1473453-A (GB)
Title: Write-erase apparatus for a rotating head magnetic signal recorder
IPC: G11B5/09
Filed: 1975-05-23
Abstract: 1473453 Rotary head magnetic recording apparatus INTERNATIONAL BUSINESS MACHINES CORP 23 May 1975 [31 Oct 1974] 22874/75 Heading G5R Rotary head magnetic recording apparatus has a rotor 40 carrying a magnetic head and also carrying both a magnetic erase head and a centre tapped secondary winding 20 of a rotary transformer having a stationary primary winding 13 magnetically coupled to secondary 20, and the recording head has a centre-tapped recording coil 23 connected at its ends to the ends of the secondary, an erase coil 30 of the erase head being connected between the centre taps 29, 35 of the secondary 20 and recording coil 23. Recording coil 23 is connected via diodes 22, 25 to secondary 20 which is carried on a rotating iron core 28, and primary 13 has a centre top 16 connected directly to a constant current source 17 of a write driver 10, the ends of primary 13 being connected to source 17 via switching transistors 18, 19 which are switched on alternatively and have data input terminals 31, 32. When transistor 18 conducts current flows through primary half 14 and is induced into secondary half 24 to flow through erase coil 30 and recording coil half 34, diode 22 blocking current flow through secondary half 21 and recording coil half 33. Similarly, when transistor 19 conducts, current only flows through secondary half 21, recording coil half 33 and erase coil 30, whereby switching between transistors 18, 19 reverses the current direction in recording coil 23 but the erase coil current has constant magnitude and direction, thus the write current is utilized to provide a D.C. erase current to cause erase gap (E), Fig. 2 (not shown), to erase a track just prior to recording thereon by record gap (W). The transformer may be constructed as shown in U.S. Specification 3,042,756, the apparatus may be used in a digital recorder of the type described in Specification 1,457,355, and the recording may use any recording code but a zero or balanced D.C. modulation method such as described in U.S. Specification 3,810,111 is preferred.
Patent GB-704637-A (GB)
Title: Improvements in or relating to pneumatic wheels for vehicles
IPC: B60C7/14
Filed: 1951-10-04
Abstract: 704,637. Pneumatic wheels. STRAUSSLER, N. P. S. Sept. 29, 1952 [Oct. 4, 1951; July 5, 1952], Nos. 23100/51 and 16942/52. Class 144(1) [Also in Group XXXIII] A pneumatic wheel for attachment to the normal wheels of a motor vehicle for use on soft ground, or to render the vehicle amphibious, comprises an inflatable body 10 of flexible non-elastic material having a cylindrical peripheral wall reinforced by circumferentially spaced transverse bars 15, and end walls 8, 9 sealed to a central hub or axle 1, the end walls being cross-connected by flexible ties 27 to prevent outward bulging of the walls and the peripheral wall being connected to the hub 1 by diverging flexible ties 22 which serve as tension spokes. As shown the bars 15 are of metal and are arranged inside the peripheral wall, additional transverse bars 17 of wood being bolted thereto to lie outside the peripheral wall and serve as spacers supporting a flexible tread sleeve 18 having transverse rubber tread bars 19. An inflation and exhaust valve 35, 33 is mounted in the hub 1 and the wheel body 10 is arranged to concertina on deflation, as shown in Fig. 3. To assist in this, the peripheral wall and tread sleeve 18 are scored or pleated transversely and elastic cords or springs are arranged to act on the flexible ties 22 and 27. When attached to a vehicle for amphibious use, the tread bars 19 act as paddles, but additional traction may be provided by flexible strips 41, shaped as shown in full lines in Fig. 5, which when attached to the outboard wall of the wheel, assume a half-cone shape as shown in broken lines in Fig. 5 flared in the forward direction of wheel rotation.
Patent GB-735215-A (GB)
Title: Improvements in or relating to the production of bis(hydroxyaryl) substituted alkanes
IPC: C07C37/20
Filed: 1953-08-24
Abstract: Bis-(hydroxyaryl) substituted alkanes are prepared by condensing a phenolic compound with a carbonylic compound in an acidic medium and in the presence of methyl mercaptan.  The acidifying agent is preferably hydrochloric acid present to the extent of approximately 6 per cent of the weight of the desired product when formed in theoretical yield.  The mixture comprising the reactants, the acidifying agent and methylmercaptan is preferably continuously introduced into a reaction vessel so that the residence time is from 15 minutes to 2 hours.  Reaction temperatures are preferably between 45 DEG  and 80 DEG  C.  In the examples phenol is condensed with acetone to form diphenylol propane.  Specification 735,216 is referred to.
Patent GB-261875-A (GB)
Title: Improvements in and relating to loud-speaking telephones
IPC: H04R1/30
Filed: 1925-09-18
Abstract: 261,875. Brown, S. G. Sept. 18, 1925. Loud-speakers. - The sound-magnifying horn of a loud-speaking telephone comprises a hollow casting 1 with diverging sides 4, the base 6 of the cabinet 7 constituting the base also of the sound passage. The smaller end of the casting has secured to it a tapering elbow 9, the other end of which carries a telephone receiver 13 detachably fixed in a split socket 10. The mouth of the horn is provided with a central panel 15 which may have a tapering rear portion 18, the panel being supported by brackets 16 set at an angle of 45‹ so as to be not easily visible from the exterior.
Patent GB-321471-A (GB)
Title: Process for covering surfaces of metal pipes with a mixture of fibrous and cement substances or for forming pipes of such a mixture
IPC: B28B19/00
Filed: 1928-08-14
Abstract: 321,471. Rocca, A. Aug. 14, 1928. Moulding pulp and pipes and tubes.-A metal pipe 3 is coated with helical layers of a mixture of fibrous and hydraulic cement substances by means of an endless carrierbelt 1 to which the mixture is fed and which contacts with the said pipe, causing rotation and longitudinal-movement thereof, and with felt-covered guiding rollers 2, 4 located on either side of the pipe. The rollers 2, 4, which are inclined to the axis of the pipe as shown, are adjustable so as to alter the inclination of the belt 1 relative to the pipe, in order to accommodate pipes of varying diameter, and also to reverse the direction of axial movement of the pipe, so that more than one layer of the mixture may be deposited. The machine is further provided with two or more adjustable felt-lined rollers 5 adapted to counteract the tendency of the belt to lift the pipe. The relative positions of the guiding rollers, pipe, and pressure rollers described above may be reversed as shown in Fig. 4, in which case an additional roller A is preferably positioned above the pipe to compress the carrier-belt thereupon. A second belt, parallel to the belt 1, may be employed to ensure positive movement of the pipe, while the stresses in the covering produced by the belt 1 may be lessened by guiding the belt back over a further roller, opposite the roller A, which presses it into contact with the pipe again. In a modified machine the pipe is mounted so as to rotate only, the carrier-belt 1 being adapted to move longitudinally of the pipe. The above mixture may be used to cover pipes already provided with a protective layer of tar &c., while the machines described may be employed to manufacture pipes of this mixture in which case the pipe 3 is replaced by a hollow core or mandrel.
Patent GB-316620-A (GB)
Title: Dough dividing machine for bakery
IPC: A21C5/06
Filed: 1929-07-30
Abstract: 316,620. Soc. Anon. des Etablissements E. Lidon. Aug. 1, 1928, [Convention date]. Rotary-mould-table machines. - Dough passes from a hopper 9 to a feed chamber 15 and is fed by a weight or spring loaded plunger 25 into measuring compartments 38 in a drum 10 which is continuouslv rotated from the main shaft A through gears 40, 39. A knife 13, actuated by a cam 24, cuts off the supply from the hopper and is guided beneath plates 16, 16<1> of which the plate 16<1> is removable for cleaning purposes. The plunger 25 is connected to a lever 30 having an arm 32 connected to a weight 34 which urges the plunger forward, the return movement being effected through a cam 37 and link 28. Pistons 41 in the chambers 38 contact through a roller 42 with a cam 12 having a curved portion adapted to effect discharge of the measured portions during rotation of the drum 10. The cam 12 is adjustable by a screw 44 and handwheel 45. An endless belt receives the discharged dough portions.
Patent GB-745260-A (GB)
Title: Apparatus for cleaning hops
IPC: A01D46/02
Filed: 1953-08-25
Abstract: 745,260. Pneumatic separating. BURR, E. H., and STRETTLE, J. Aug. 16, 1954 [Aug. 25, 1953], No. 23456/53. Class 117. Leaves are separated from a mixture of leaves and hops, carried on a wire mesh belt conveyer, by air passing into a shroud positioned closely over the conveyer. As described, the mass of hops, leaves, &c. is carried from the hopper 1 by the belt 2 to a coarse grille 4 vibrated by an eccentric 6. Only the coarser material is retained by the grille 4 and slides down to a finer fixed grille 7 from which the large leaves are removed manually and the lateral stems are stripped by being fed manually to a picking unit 10 of the type described in Specification 702,700. The stripped hops &c. and the remainder of the material which has passed through the grille 4 on to the belt 8 are fed on to the wire mesh conveyer 9. Any petal and seed which passes through the mesh 9 is conveyed by belt 14 to a box 15, but the bulk of the material passes under the shroud 16 which is connected by ducts 17, having adjustable apertures 21, to the housing 18 of a suction fan 19. The housing 18 leads to a shoot 20 from which the leaves sucked up into the shroud 16 are discharged. The remaining hops are discharged on to a conveyer 22 leading to a hopper 23. Stands 24, 25 are provided for attendants who remove by hand any pieces of leaf, stem, string &c. reaching the conveyer 22. Specification 736,092, [Group I], also is referred to.
Patent GB-238091-A (GB)
Title: Improvements in or relating to treeing machines for boots and shoes
IPC: A43D95/02
Filed: 1924-10-04
Abstract: 238,091. Gimson Shoe Machinery Co., Ltd., Read, I. L., and Robottom, H. Oct. 4, 1924. Finishing. - Relates to treeing-machines provided with inflatable trees, and consists in an inflatable tree having an inflatable heel portion as well as an inflatable fore part. The fore part is detachable and interchangeable with other fore parts of different sizes. The tree comprises a permanent part 3, 4 including an inflatable bag 1 with a rubber or leather cover 7, and a detachable fore part 5 with a similar inflatable bag 2 and cover 8. The, parts are normally secured together by a metal strip 9 fixed to the fore part and provided with a bent portion 11 which engages in a recess 15 formed in the part 3. The fore part 5 also has a tongue 18 which is engaged by the bevelled end 16a of a locking member pivoted on a pin 17. A rubber washer 39 is compressed when this locking member is in operative position to maintain an air-tight joint between the pressure chamber 22 and the nozzle 32 of the bag 2. A similar washer 28 is compressed when the tree is applied in the usual manner to its carrier. Leakage of compressed air to the outside of the bags 1, 2 is thus prevented. In a modification, co-operating dovetails are provided on the parts 3, 5 and the fore part is slid longitudinally into position. In this modification, the washer 39 is on the transverse face of the part 3, and a spring catch holds the parts engaged. Specification 238,087 is referred to.
Patent GB-954875-A (GB)
Title: Improvements in or relating to gypsum board wall studs
IPC: E04B2/72
Filed: 1962-06-19
Abstract: 954,875. Partition walls. ALLIED CHEMICAL CORPORATION. June 19, 1962 [July 25, 1961], No. 23549/62. Heading E1V. A wall stud is formed from a strip 14 Fig. 6 of gypsum board longitudinally slotted on opposite sides at 32 and 34, and folded into zig-zag configuration, Fig. 3. The upper and lower ends of the folded strips are each received in an inner channel 50 of a treble channel strip 16 Fig 2 secured to the ceiling and floor of a room, the folds of the strip being retained against spreading by tabs 52 bent out from the wall 46 of the inner channel. Gypsum panels received at their top and bottom edges in outer channels 48 of the strips 16, are secured by screws 20 driven into a mounting plate assembly 22, 24 as described in Specification 954,874. Adhesive mastic 18 filling the open cracks 32a, 34a may also be provided in addition to the screws 20 and mounting plate assembly.
Patent GB-532147-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H51/32
Filed: 1939-08-18
Abstract: 532,147. Electromagnetic relays. GENERAL ELECTRIC CO., Ltd., and COLLYER, J. E. Aug. 18, 1939, No. 23814. [Class 38 (v)] In a relay of the type shown in Specification 491,980, provision is made allowing the central spindle of the differential to continue rotating after the switch 12 has been operated and while the signalling current continues. In the form shown the central spindle of the differential drives a wheel 2 carrying a pin 4 which engages with lost motion an arm 3 which engages and drives a drop arm 7 pivoted at 8 on the spindle of the mercury switch carrier 6 and movable between pins 9, 10 on the carrier. In the position shown, continued counter-clockwise rotation of the wheel 2 has no driving effect on the mercury switch, the arm 3 slipping past the arm 7 at each revolution. Clockwise rotation of the wheel 2 would cause the pin 4 to engage the other side of the arm 3 and drive it and the arm 7 so as to tilt the mercury switch in the other direction. In a modification, Figs. 3, 4 (not shown) the teeth of a wheel engage or slip past the drop arm 7.
Patent GB-946184-A (GB)
Title: Method and apparatus for profiling an annular workpiece
IPC: B21H1/12
Filed: 1962-06-21
Abstract: 946,184. Rolling annular bodies; making bearing races. SMERALOVY ZAVODY NARODNI PODNIK. June 21, 1962 [June 22, 1961], No. 23874/62. Headings B3A and B3M. A method of profiling an annular workpiece comprises rolling a workpiece between two tools in a closed space formed by recesses in the two tools, the space becoming smaller during a first part of the rolling movement and remaining constant for a second part. The inner race 2 of a bearing is supported in a free or driven roll 1 while a profiled platen 5 is moved longitudinally over the race, a ridge in the platen increasing in height at first and then remaining constant in height so that a corresponding groove is formed round the entire periphery of the race. A similar groove is formed in an outer bearing race 8, Fig. 7, by rolling between two tools 9 and 10, the groove in the movable tool 10 decreasing in depth during rolling.
Patent GB-1340551-A (GB)
Title: High pressure sodium vapour discharge lamp
IPC: H01J61/54
Filed: 1971-04-19
Abstract: 1340551 Metal vapour lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [17 March 1970] 23911/71 Heading H1D A high pressure Na vapour discharge lamp with an elongated envelope has two main electrodes 16, 17, an auxiliary electrode 15 (e.g. 0À24 mm. W wire) external to and spaced from the tube (e.g. by 0À25 mm.) which electrode includes a part embracing at least one quarter of the circumference of a cross-section of the tube and is connected to one of the main electrodes through a non-resistive connection wherein the entire auxiliary electrode comprising ring 15 and link 18 lies within a region between 1 and 3 cms. from the nearest point of the other main electrode and wherein the auxiliary electrode is permanently connected by a non-resistive connection to a lead-in conductor. The electrode may be a stub of 1 to 1¢ cms. parallel to the tube axis and the dimension in a direction parallel to the longitudinal axis direction may be <1 cm. and less than 0À05 times the distance between the main electrodes. The area of the radial projection of the auxiliary electrode on to the outer wall of the tube may be <0À05 times the surface area of that portion of the outer wall of the tube between the main electrodes and may comprise a few turns around the tube. Ignition gas may comprise Xe or Ne and Ar, Na with Hg and Ne plus 0À3% Ar also being disclosed. The spacing of the auxiliary electrode from the tube inhibits quick evaporation and high temperature attack. Starting voltages are instanced with a 0À12 Henry inductance lamp length may be 27¢ cms. and the lamp also includes stranded wire connector 9, non-resistive wire parts 10, 11 with convolution 12 about a tube indent, outer envelope 1 of 4À6 cms. diameter, inner tube 3 of 0À95 cm. diameter and length 11À5 cms., electrodes 16, 17 being 5, 8, or 13À5 cms. apart, shortest distance between electrodes 15, 16 being 23 mms. for example.
Patent GB-225652-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/04
Filed: 1923-09-26
Abstract: 225,652. Tucker, J. S. Sept. 26, 1923. Bases, boxes, and cases.-Where a tumbler switch is mounted on a plate or disc such as the base of a conduit box, the bridge of the tumbler mechanism is carried bv two pillars or similar supports extending from the base, the two fixed contacts being supported and insulated from the base by an insulating support whereby they mav be detached without disturbing the tumbler mechanism. The bridge piece b, Figs. 1 and 2, is secured on hollow pillars d by screws c passing into the base a<2> of the conduit switch box a. The fixed contacts e are carried by an insulating piece f which is secured to the base by a screw f<2>, Fig. 3, passing through a central perforation f<1>. By removal of this screw the contacts e with the insulator f may be removed to facilitate wiring, or the bridge-piece b carrying the tumbler-operated mechanism may be removed independently by removing the screws c. Where the box a is of metal, the screws c serve to earth the tumbler mechanism.
Patent GB-700409-A (GB)
Title: Improvements relating to hydraulically operated deck arrester hooks and like pressure operated mechanisms
Inventor: LISLE WILLIAM GEORGE
IPC: B64C25/68
Filed: 1950-10-02
Abstract: 700,409. Hydraulic machines. FAIREY AVIATION CO., Ltd. Oct. 17, 1951 [Oct. 2, 1950], No. 24047/50. Class 69 (2). [Also in Groups XXXII and XXXIII] In a mechanism for actuating an arrester hook on an aircraft provided with a liquid operated jack and with a connection between the jack and the hook enabling the jack to move the hook between an inoperative and an operative position in which the hook may be subjected to shocks which are transmitted to the jack, a chamber is provided arranged to be charged with gas under pressure which absorbs such shocks transmitted through the medium of liquid interposed between the jack and the gas. A two position jack J comprises a cylinder 17 and a differential piston 16 the smaller area of which is subjected to pressure supplied from a pipe 42 through a non-return valve 44, a pipe 39, a flexible pipe 27 and a restrictor R, the larger area being connectible through a flexible pipe 34, pipe 38 and a valve V either to the supply pipe 42 or to an exhaust pipe 54. The flexible pipes 27, 34 are also in communication with the opposite ends of a chamber B fixed to the aircraft and having two pistons 32, 33, of greater cross sectional area than the jack, separated by a space charged with air under pressure. If the jack in the extended position is forced to retract liquid is expelled by the piston 16 and forced into the chamber B compressing the air. Due to the restrictor R cavitation occurs on the smaller side of the piston and the pressure in the chamber B acts on the full area of the piston 16, quickly returning the jack to the extended position. Pressure in the chamber B forces a small quantity of liquid through the restrictor R into the cylinder 17, which liquid acts as a buffer for the rapidly extending piston. The hook is fixed to the apex of a triangular frame pivoted in brackets fixed to the aircraft and the jack is pivoted between an arm fixed to the base of the frame and a trunnion on the aircraft.
Patent GB-460668-A (GB)
Title: Improvements in and relating to chilling apparatus, particularly for chilling liquids
IPC: F28F9/26
Filed: 1935-08-30
Abstract: 460,668. Solidifying liquids by cooling. WORTHINGTON-SIMPSON, Ltd. (Carbondale Machine Corporation) Aug. 30, 1935, No. 24333. [Class 29] Apparatus for chilling liquids, e.g. for separating wax from oil distillates, comprises superposed groups of pipes 10 for the liquid connected in series by bends and having evaporator jackets 11. Liquid refrigerant is circulated through the jackets which are connected in parallel between supply and discharge headers 23, 25 respectively by a pump 27 communicating with a drum 26 to which the discharge header 25 is connected. The drum is supplied with liquid refrigerant through a float-controlled valve and provided with a vapour outlet pipe 34 to the compressor of a refrigerating machine. The refrigerant passes from the supply header 23 to the evaporator jackets through tubes 22 having orifice plates 35, Fig. 7, the jackets of each group of pipes being connected to one another and to the discharge header 25 through pipes 21, 24 respectively. The oil to be cooled is supplied to the top group of pipes through an inlet 16 and leaves the bottom group through an outlet 17, the wax deposited on the insides of the pipes being removed by helical blades mounted on shafts 18, Fig. 3, having toothed-wheels 20 rotated by a chain drive. The passages in the pipe bends through which the shafts pass are maintained liquid-tight by packings 54, 55, Fig. 4, separated by a spring 53.