baber/WOPTO huggingface dataset:
Patent GB-555566-A (GB)
Title: Improvements in and relating to sealing or packing means particularly for refrigerators
IPC: F25D23/08
Filed: 1942-09-18
Abstract: 555,566. Refrigerators. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 18, 1942, No. 13227. Convention date, Sept. 20, 1941. [Class 29] [Also in Group XXVI] A sealed joint particularly for a top metal cover 19 of a domestic cabinet having a top opening for the insertion of the cooling unit, closed by a plug 16a, comprises a hollow rubber &c. packing ring 23 having a relatively deep and thick inner rib 27 to bear on the cabinet top and an outer rib 28 to bear on the inturned flange 31 of a metal strip 29 for concealing the packing ring. The packing ring is held by friction on an inturned flange 21 of the cover, the edge of the flange preferably being formed with spaced projections entering, slits in the grooved wall of the packing ring. The base flange 31 of the cover strip 29 is preferably arched as shown in Fig. 2 to improve the seal, or it may be inclined slightly as shown in Fig. 5 so that the upright part of the strip is forced inwards as the cover is secured. The rear edge of the cover may be held by strips 32 secured to the top wall of the cabinet and the front edge by straps 33 secured by screws to nuts fixed inside the cabinet wall and cover.
Patent GB-1071324-A (GB)
Title: A grease
IPC: C04B33/04
Filed: 1965-03-29
Abstract: A grease composition comprises a nitrogencontaining component which is an oleophilic imidazoline and/or an oleophilic aminoamide formed between a fatty acid and a plyethylene polyamine, an oleophilic clay product, a polyethylene glycol and a lubricating oil.  The clay product, preferably passing a 250 mesh (U.S.) screen, is formed (see Division C1) by treating an acid-exchanged clay such as hectorite with one or more of the above class of nitrogen-containing components and spray drying in the absence of oil.  The product preferably bears 40 to 125% by weight, based on the clay, of the nitrogen compound on its surface.  The clay product may contain 0.5-5% moisture and the grease itself preferably contains up to 1% water.  The polyethylene glycol is preferably water-soluble and has a molecular weight between 500 and 1600, e.g. "Carbowax."  The lubricating oil, present in an amount 10 to less than 100% by weight based on the clay, may be a mineral oil or a synthetic oil, e.g. esters of dibasic acids and C4-12 alcohols, esters of polybasic acids and polyhydric alcohols, polymeric ethers, pentaerythritol esters, their polyphenol ethers and phosphorus esters.  The grease constituents may be homogenized without the application of heat, or at temperatures up to 190 DEG  F. Sodium nitrite is an optional additive.
Patent GB-626176-A (GB)
Title: Improvements in precision grinding machines
IPC: B24B5/04
Filed: 1947-05-19
Abstract: 626,176. Grinding. CHURCHILL MACHINE TOOL CO., Ltd., and ASBRIDGE, G. H. May 19, 1947, No. 13367/47 and 5511/48. [Class 60] A precision grinding machine comprises a grinding wheel, an upper table, a tailstock and a headstock carried by said table, a lower table, a pivotal connection between the upper and lower tables at the grinding wheel side of the tables, a former, a slide carrying said former traversible longitudinally upon said lower table at the side of the latter opposite to that at which the grinding wheel is situated, and a part upon the underside of the upper table resting on said former so as to tilt the upper table as the slide is traversed. The machine comprises a headstock b and tailstock c carried by an upper table a mounted by pivots o, or by knife edges, on the lower table which can slide along the machine bed to move the work past the grinding wheel i. A member n secured to the underside of the upper table a cooperates with a former m secured on a slide k which can be moved longitudinally of the lower table j, so as to feed the work into the grinding wheel, by a piston and cylinder p, q supplied by a pump y through a distributing valve u operated in one direction by a spring w and in the other by a solenoid v. The tailstock centre f is slidably mounted, being urged towards work-engaging position by a spring 4 and being moved in the opposite direction by a piston and cylinder 5, 6 supplied by the pump y through a valve 8 operated by a handle 9 and a solenoid 10. To initiate an automatic cycle, the handle 9 is moved to the right. This connects cylinder 6 to exhaust, thus allowing the spring 4 to advance the tailstock centre f to pick up the work. Contact plate 13 carried by the piston 5 bridges contacts 14 to energize solenoid v, whereby valve u is moved, against spring w, to admit fluid to pipe r; piston p thus moves to the right, traversing the former m and tilting the table a to feed the work into the grinding wheel. At the end of the stroke of piston p, contacts 20 are closed by plate 19 operated by cam 18 on the piston rod; movement of contact plate 15 carried by the piston p opens contacts 16 and closes contacts 17. Closing of contacts 17 energizes relay 24 which closes normally open switches 25, 26, switch 25 is in series with the solenoid 10 and switch 26 is connected across contacts 17. Closing of contacts 20 energizes dwell relay 27 which after a predetermined interval opens switch 28 to de-energize solenoid v; this causes return of piston p to its left hand position; the consequent closure of contacts 16 causes solenoid 10 to be energized (although contacts 17 are now open, relay 24 is maintained in circuit by switch 26), moving valve 8 to the left thus admitting fluid to cylinder 6 to withdraw tailstock centre f for the work. This opens contacts 14 to de-energize the electrical circuit.
Patent GB-133756-A (GB)
IPC: E04B2/28
Abstract: 133,756. Banger, H. Oct. 14, 1918. Double walls.-Slabs for constructing hollow walls, especially of the kind having outer slabs formed of hard concrete and inner slabs of soft concrete, are provided with lugs a, b having inclined faces a', b<1> so that the two series of slabs interlock. The lugs are so positioned that there is always an air space opposite the joints between the slabs to prevent the passage of moisture.
Patent GB-130187-A (GB)
Title: Improvements in and relating to Electric Safety Lamps.
IPC: F21L4/00
Filed: 1918-08-17
Abstract: 130,187. Fuller Accumulator Co., and Welch, A. P. Aug. 17, 1918. Battery lamps.-The .casing is provided with a protecting pad or buffer B of rubber &c. in the form of a sleeve which fits tightly over the base of the lamp to which it may be cemented. The periphery C of the buffer is of larger diameter than any part of the lamp casing.
Patent GB-345864-A (GB)
Title: Process and plant for the manufacture of liquid fuels
IPC: C10G1/06
Filed: 1930-05-02
Abstract: <PICT:0345864/III/1> In a process for the production of liquid fuels by low temperature distillation or partial gasification of carbonaceous materials, and comprising an enrichment with hydrogen in the presence of catalysts as described in Specification 267,512, [Class 1 (i), Chemical processes &c.], a second operation of catalytic hydrogenation is effected.  To the products to be treated are added the light oils derived from distillation of the condensate of the above process and the light oils which are obtained from treatment in a cracking plant of the pitches and medium oil obtained in this distillation.  A, B, C represent respectively the retort dephlegmator and hydrogenating apparatus of Specification 267,512. The condensate from condenser I collects in P and the gaseous products pass through heater J to apparatus L.  Additional hydrogen is added to the mixture and hydrogenation effected herein at 180 DEG -200 DEG  C.  After cooling in N, the liquids separate over carbon in K, easily condensable products passing to p  O.  Remaining gas traverses a washer R to a gasometer M.  The condensate in P separates into water in P, and oil in P2.  The latter after washing with soda in P3 is distilled in P4.  The light oils after vaporization in P5 join the main gas stream in conduit 1.  Pitches are removed by conduit P6 and medium oils by P7 to the cracking plant O.  Light oils from the latter also pass to the main stream.
Patent GB-546990-A (GB)
Title: Improvements in or relating to electric insulating materials
IPC: H01B3/44
Filed: 1941-01-02
Abstract: 546,990. Polyvinyl compositions. STANDARD TELEPHONES & CABLES, Ltd., SCOTT, T. R., and NEW, A. A. Jan. 2, 1941, Nos. 13609 [Divided out of 546,971] and 13610. [Class 2 (iii)] A process of preparing an electric insulating material from two different insulating materials, one of which is solid and consists of or comprises polystyrene and the other of which is liquid and consists of or comprises a plasticizer for polystyrene, comprises the steps of placing the solid material in a fragmentary state in a container not surrounding electrical apparatus and drawing the liquid into the container under vacuum at least to fill the interstices between the fragments of solid ; after restoring the pressure to atmospheric, the material may be allowed to stand, again evacuated, heated with or without stirring and the pressure then restored to atmospheric. The proportion of solid to liquid may be increased by using particles of solid of mixed grain size, by shaking the container and by compressing the particles ; the proportion of liquid to solid may be increased by preparing a solid material as set out above, comminuting the material, and repeating the process with the comminuted material and additional plasticizer. The polystyrene may be employed in admixture with rubber and the plasticizer may be poly α-methylstyrene, monostyrene, 1,1-di-p-tolylethane or a solution of polystyrene in monostyrene or 1,1-di-p-tolylethane. Specifications 504,765, 504,780, 532,687, [Group XXXVI], and 542,694, [Group XXVIII], are referred to. In Provisional Specification 546,990, [Group XXVIII], reference is made to Specification 540,300, [Group XXXVI]. According to Provisional Specification 546,990, any solid and any liquid insulating materials may be used.
Patent GB-919180-A (GB)
Title: Improvements in stabilized saturated hydrocarbon polymeric compositions
IPC: C08K9/02
Filed: 1959-04-22
Abstract: A polymer derived from a mono-olefin is stabilized with carbon black activated by the addition of oxygen, sulphur or selenium to the surface of the carbon black particles.  Specified polymers are those derived from ethylene, propylene, isobutylene, butene, methyl butene, methyl pentene, dimethyl pentene, dodecene and/or styrene.  The activated carbon may be obtained by admixture of carbon black with sulphur or selenium, or by pyrolysing carbon black with oxygen, sulphur or selenium.  Unactivated carbon black also may be present.
Patent GB-381510-A (GB)
Title: Improvements in and relating to means for protecting electric circuits
IPC: B26B13/00
Filed: 1932-05-12
Abstract: 381,510. Protective cut-out systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Fitzgerald, A. S. ; Warwick Road, Wynnewood, Pennsylvania, U.S.A.) May 12, 1932, No. 13732. Convention date, May 12, 1931. Addition to 274,070, [Class 38 (v), Electric switches &c.]. [Class 38 (v).] Relates to protection against faults within a line section by means of a comparison of high-frequency currents superposed on the line as in the parent Specification. A transmitter 19, 20 is located at one end of the section to transmit only during alternate half-cycles of the circuit current at this end. A receiver 21 at the other end is so connected as to receive only during alternate cycles of the circuit current at its own end. The arrangement is duplicated, as shown, so that unless there is relative reversal of circuit current between the two ends due to fault, the receiver at one end is receptive to the high-frequency oscillations at the other end and the circuit-breaker will be locked closed to prevent operation with through faults. According to the invention, the protective relays 33 which completes the tripping circuit of the circuit-breakers 13 are arranged to be operated by overcurrent in the coil 35 (connected with the current transformer 23 in the line) and are restrained when the line is sound by a winding 36 which is controlled by a receiver relay 27 itself controlled by its local receiver 21. The transmitters and receiver are put in action on fault by a starting relay 30 which may be of the overcurrent type. This relay short-circuits one of the windings 38 of the receiver relay and the other winding 22, connected with the receiver maintains the relay closed and the restraining winding 36 energized as long as both transmitters transmit alternately. If, however, the fault is in the section itself the transmitters will transmit simultaneously so that the receivers cannot receive ; the relay winding 38 is deenergized and the relay 27 opens thereby open-' ing the circuit of the restraining winding, permitting closure of the relays 33 and tripping of the circuit-breakers. In a modification, the receiver relay is of the double-throw type and when de-energized is adapted to complete a circuit through the contacts 32 to trip the circuit-breaker and when energized to complete through its second contact a circuit through the restraining winding.
Patent GB-125639-A (GB)
Title: Improvements in or relating to Explosive Projectiles.
IPC: F42B12/58
Filed: 1916-09-27
Abstract: 125,639. Vickers, Ltd., Buckham, Sir G. T., and Barker, F. H. Sept. 27, 1916. Projectiles; projectile fuses.-Relates to anti-aircraft shells of the kind containing a number of small projectiles which are filled with incendiary composition and are arranged around a central flash-tube, leading from a nosefuse to a bursting- charge in the rear. Ac. cording to the invention, (1) the projectiles are hollow bullets open only at their bases, at which end the incendiary composition is ignited, preferably by shalloon primers B<4>, B<4x> arranged within the flash-tube B; (2) the bullets may be in several rows and have the points disposed in perforations or recesses in plates such as C, C' (3) the incendiary composition in the bullets may be ignited by powder pellets C<3>, C<4> carried by plates B<2>, C on which the bullets are mounted. The pellets communicate with the primers B<4>, B<4x> through flash-holes D. Wood supports C<5> are placed between the bullets, and the plates B<2>, C have keys engaging in slots in the shell body to take up the rotation.
Patent GB-118702-A (GB)
Title: Improvements in Dental Cements.
Inventor: CROWELL WALTER STILWELL
IPC: A61K6/02
Filed: 1917-09-26
Abstract: 118,702. Crowell, W. S. Sept. 26, 1917. Metallic-oxide cements.-Mercury salts are incorporated with dental cements for tooth-stopping and for setting crowns &c. so as to exert an antiseptic &c. action and to prevent the recurrence of decay. A mercury phosphate or other mercurous or mercuric compound, such as an oxide, sulphide, chromate, or carbonate, is added to the powder or to the phosphoric acid solution of an ordinary oxyphosphate of zinc cement. The acid solution may contain, in addition, the phosphates or oxides of sodium, zinc, or aluminium.
Patent GB-529586-A (GB)
Title: Improvements in wringers
IPC: D06F45/18
Filed: 1939-05-09
Abstract: 529,586. Wringers; machinery guards. LOVELL MANUFACTURING CO. May 9, 1939, No. 13867. Convention date, May 11, 1938. [Class 138 (ii)] [Also in Group XXIV] A power wringer is mounted on a support to permit of movement parallel to itself which movement operates a safety device to release the pressure on the rolls and may also disconnect the drive. As shown in Fig. 1 the wringer frame is supported by two pairs of parallel links 45, 37 at right angles to one another shown detached in Fig. 4, from a head 21 which is mounted in adjustable relation on a pillar 19 housing the driving shaft 22 which drives through bevel wheels 23, 24 and a clutch 27 a shaft 25 connected by couplings 36 and 68 with the shaft of the lower roll. The horizontal links are suppported by springs 50. The pressure is applied to rolls by a spring 11 adjusted by a screw 12 in the top plate which is held down at the outer end by toggle links 14, 16 and at the inner end by a pivoted catch 51 held in engagement with the stile 2 by a spring pressed sliding rod 56 engaging a bevelled recess 64 in a casing 66 in the head 21. Displacement of the wringer, as by a pull or push in any direction by the operator in case the fingers are caught, causes a movement of the wringer parallel to itself whereby the end of the rod 56 is pressed back by the bevels of the recess 64 so that the end 63 of the rod releases the catch 51 and permits its escape from the stile. The top plate now rises by reaction of the spring 11 with a lateral movement which breaks the toggle 14, 16 and removes the pressure entirely. So long as the pressure was maintained the coned coupling 68 resting on the inclined bearing 9 was forced inwardly to engage the cross pins 71 for driving the lower roll : removal of the pressure by displacement of the wringer as described above permits a spring 76 inside the coupling 68 to force the coupling back so that it is moved out of driving engagement with the pins 71. This coupling and also the means for resetting the spring pressure on the rolls by a lever 14 is desscribed in Specification 529,378. Specifications 529,239, [Group XXIV], and 529,585 also are referred to.
Patent GB-582484-A (GB)
Title: Improvements in resonators used with electron discharge devices of the velocity modulated type
IPC: H01J25/76
Filed: 1941-10-29
Abstract: 582,484. Velocity-modulated tubes. BRITISH THOMSON-HOUSTON CO., Ltd., and MILNER, C. J. Oct. 29, 1941, No. 13950. [Class 39 (i)] In electron discharge devices of the velocity modulation type having one or more annular resonators with a circumferential slit at the portion of minimum diameter with which the beam re-acts, the edges of the slit are chiselshaped so that the thickness is small relatively to the width of the slit. In an example, with a width of slit from .04" to .1", the thickness of the edges should not exceed .01".
Patent GB-1107666-A (GB)
Title: Steering wheels
Inventor: ROSE KENELM HENRY FORSHAW
IPC: B62D1/06
Filed: 1966-03-30
Abstract: 1,107,666. Vehicle steering wheels. COSMIC CAR ACCESSORIES Ltd. 3 Feb., 1967 [30 March, 1966], No. 14001/66. Heading B7V. The wheel comprises a metal hoop frame 1, an upper part 2 of hard smooth texture such as polished wood, and a lower high-friction part 3 of hard or soft rubber or plastics preferably covered by leather 4 which may be extended upwardly over the recessed into the part 2 or be extended and clamped between the two parts 2 and 3, Fig. 3 (not shown). In a modification the leather 4 may be chamfered off instead of inlaid into 2.
Patent GB-1458642-A (GB)
Title: Low-pressure casting plant
IPC: B22D18/04
Filed: 1975-04-04
Abstract: 1458642 Low pressure ingot casting plant KARL SCHMIDT GmbH 4 April 1975 [8 April 1974] 14007/75 Addition to 1345982 Heading B3F In a modification of the ingot casting apparatus of the parent Specification, the bridging structure 3 is pivoted about 36 with respect to brackets 37 attached to the vertical bars 2. The structure may be tilted by an hydraulic actuator 40 (see Fig. 2, not shown) and locked in position by hydraulic locking element 42. (For Figure see next column.)
Patent GB-1195241-A (GB)
Title: Improvements in or relating to Pneumatic Tyres
Inventor: DAVIS JOHN ROBERT
IPC: B60C11/11
Filed: 1967-03-28
Abstract: 1,195,241. Pneumatic tyre. DUNLOP CO. Ltd. 26 March, 1968 [28 March, 1967], No. 14010/67. Heading B7C. A pneumatic tyre comprises a tread provided with traction bars each extending substantially from the mid-circumferential plane of the tyre towards at least one shoulder, the leading face of each bar having an angle of inclination over a part at least of its length of at least 20 degrees with respect to a radial direction and the trailing face having an angle of inclination substantially between 5 degrees and 10 degrees with respect to a radial direction.
Patent GB-1260804-A (GB)
Title: Improved multistation analytical photometer and method of use
IPC: G01N33/48
Filed: 1970-03-23
Abstract: 1,260,804. Centrifugal separators. UNITED STATES ATOMIC ENERGY COMMISSION. 23 March, 1970 [23 May, 1969], No. 14019/70. Heading B2P. [Also in Division G2] In a rotary cuvette photometric analyser, a rotary disc 11 has a multiplicity of first chambers 12 connecting with radially outwardly disposed second chambers 14 connecting in turn withlower third chambers 16, for providing soild free samples to surrounding cuvettes 9. The first chambers are adapted to receive liquid samples and reagent. On slow spinning of the disc, both liquids are transferred by centrifugal force to second chambers 14, where they are centrifuged to yield a precipitate. A transparent cover 18 prevents leakage of liquid from the chambers 12, 14. The supernatent liquid flows down bores 15 into third chamber 16 when the disc stops rotating. The supernatent is then transferred into cuvettes through bores 17 by further rotation of the disc. The supernatent is then diluted in the cuvettes, and its transmittance measured by light passing through two transparent rings 4, 6 and bores in keeper plates 2, 8, whose intensity is measured by a detector 22 incorporating a photomultiplyer. Current from a tachometer 23 and revolution detector 26 is fed to a signal generator 24, so that pulses of light from each cuvette can be distinguished by a pulse scanner 25 during each revolution, and then fed to a pulse peak readout 27. The analyser may be used with two liquids which do not form a precipitate when mixed in the second chambers 14, but react slowly and require prolonged incubation. In this case, the disc is kept rotating slowly until the reaction is complete.
Patent GB-220989-A (GB)
Title: Improvements in apparatus for cleaning the matrices of typebar making machines
IPC: B41B11/00
Filed: 1923-05-28
Abstract: 220,989. Arnold, J. Mary 28, 1923. Cleaning matrices.-Matrices contained in a channel a are, extracted one by one by a reciprocating member e, and are drawn beneath a rotating brush f, after which they fall down a passage i and are turned over and carried by a reciprocating member o beneath a second rotating brush l, which cleans the other face. The matrices are then delivered on to a vertically-moving platform r, which lifts them into a delivery channel b, in which they are retained by spring-pawls t. During the lifting, the longitudinal edges of the matrices are cleaned by rotating brushes u.
Patent GB-581476-A (GB)
Title: Improvements in or relating to gas compressing apparatus
IPC: F04B39/02
Filed: 1944-07-25
Abstract: 581,476. Gas compressors. RICARDO, H. R., and EVANS, A. T. July 25, 1944, No. 14185. [Class 8 (i)] A compressor, especially for use in compressing oxygen, is lubricated and wholly or mainly cooled by injection of water flowing in a closed circuit, returning to the first stage cylinder A through a metering device J' comprising a capillary tube after separation of water from the compressed gas in a reservoir O connected with the final stage outlet through a cooler N. The gas may be drawn into the cylinders through ports uncovered by the pistons, and discharged through spring-pressed disc valves covering the ends of the cylinders. and through a silica-gel drier Q. A valve P<1> ensures a pressure of 2001bs. per square inch to ensure water circulation. The gas enters by a pipe through a check valve L' and a reducing valve L'; the latter valve may alternatively be located in a bye-pass line which can be opened by a handoperated valve R'.