baber/WOPTO huggingface dataset:
Patent GB-1350875-A (GB)
Title: Process for producing dilithio hydrocarbons
Inventor: ANTKOWIAK THOMAS A
IPC: C08F36/04
Filed: 1972-04-04
Abstract: 1350875 Dilithiohydrocarbon compounds FIRESTONE TIRE & RUBBER CO 4 April 1972 [14 April 1971] 15542/72 Heading C2J [Also in Division C3] Dilithiohydrocarbon compounds are prepared by heating allyllithium or a hydrocarbonsubstituted allyllithium which contains allylic hydrogen at 50-150‹ C. for 20-200 hours, usually in an inert hydrocarbon diluent such as hexane or heptane. The hydrocarbon-substituted allyllithium may be prepared by reacting a C 3-20  secondary or tertiary monolithio alkane (many specified but especially sec- or tertbutyllithium) with a C 4-10  conjugated diene (particularly isoprene or butadiene-1,3) at - 30‹ to 0‹ C. for 20-100 hours and the substituted allyllithium may thus be 1-lithio-5-methyl-2- heptene or 1 - lithio - 3,5 - dimethyl - 2 - heptene. The compounds are used as polymerization initiators.
Patent GB-1200251-A (GB)
Title: Machine tool slideway construction
Inventor: WYATT COLIN
IPC: B23Q1/70
Filed: 1968-04-01
Abstract: 1,200,251. Machine-tool details. CHARLES CHURCHILL Ltd. 23 May, 1969 [1 April, 1968], No. 15551/68. Heading B3B. A machine tool includes a slidable cylindrical ram 10 for supporting at its front end either a cutting tool or tools or a rotatable spindle for supporting a tool or a workpiece, and having fixed to its rear end a member 14 having a tongue 18 engaging a slot 19 in the body 11 of the machine tool to preclude rotation of the ram during its sliding movement. The ram 10 is supported in spaced bearing bushes 12 by hydrostatic bearings 13. The clearance between sides of the slot 19 and the tongue 18 is adjustable by a variable-position wedge 20. Rapid advance of the ram, under fluid pressure, is changed to slow feed when a trip mechanism 28 is tripped by a member 29. Advance of the ram is terminated by an adjustable dead stop 30.
Patent GB-1157590-A (GB)
Title: Improvements in and relating to Disc Brakes.
IPC: F16D55/14
Filed: 1968-04-01
Abstract: 1,157,590. Disc brakes. BENDIX CORP. 1 April, 1968 [13 April, 1967], No. 15558/68. Heading F2E. A heavy duty clutch type disc brake, e.g. for a tractor, comprises a fixed housing 10, with a cover 20 forming a brake cavity containing two annular friction pads 54, 56 and a pair of discs 28, 30, one driven by the axle 24, so that when a " secondary " band brake is applied to flange 66 around the other disc 30, balls 32 housed in recesses between the discs cam the discs apart axially in known manner to engage with the friction pads. As shown, the pads are loosely located in recesses in the housing and lid, but they may be loosely journalled on the axle, Fig. 3 (not shown). The pads and the two discs as a unit are easily removed for maintenance when the cover 20 is unbolted.
Patent GB-365467-A (GB)
Title: Improved file for cards
IPC: B42F17/18
Filed: 1931-05-27
Abstract: 365,467. Card indexes. THIEME, (nee OVERHOFF), E., 13, Sch³tzenstrasse, Schwerte, Ruhr, Germany. May 27, 1931, No. 15568. Convention date, May 28, 1930. Addition to 364,893. [Class 146 (i).] In the visible card-index described in the parent Specification, the holes 7, Fig. 3, in the folds 12 of the cards 1 through which the retaining rod passes are formed by cutting away a piece of rectangular shape from the folded edge of each card so that tearing of the cards by the rod is lessened. Further the short edges of the cut-away parts may be reinforced by clips 10 of celluloid, sheet metal, or other suitable material, or by bending back the material cut away to form the hole 7. The follower member 4, Fig. 1, has its fold-engaging edge 5 slotted to form tongues 6 which engage between the staples 3 securing the folded parts of each card, thus preventing the loosening of the staples 3.
Patent GB-738530-A (GB)
Title: Improvements in or relating to devices for the transmission of signals between an emitting station and a receiving station over a two-conductor line
IPC: H04Q1/442
Filed: 1953-06-05
Abstract: 738,530. Electric selective signalling. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 5, 1953 [June 6, 1952], No. 15604/53. Class 40 (1). [Also in Group XXX] In a system wherein A.C. signal pulses of predetermined duration and of different frequencies are sent over a common line, relays at the receiving station respond selectively to the transmitted frequencies, and are held, after cessation of the A.C. signal pulses by a D.C. transmitted simultaneously with the A.C., the holding circuits being broken when the receiving station transmits a reply signal. As shown, to transmit a 60 c/s signal from station A to B a selector switch CA is moved to position 1A to energize a relay SA which connects battery a to line L, energizes a relay RA for the time taken by a condenser AC to charge, e.g. six seconds, and lights an indicator lamp AS. During the six second energization period of relay RA, a 60 c/s source GA 60 transmits signal current to line L. At the station B the A.C. signal is passed by a 60 c/s filter FB60 and operates a relay MB which causes a relay LAB to be energized by the D.C. transmitted from station A. Relay LAB locks at LAB2, operates an indicator lamp and/or siren BAL and prevents the D.C. source b at station B from being connected to line. This signal persists until transmission of a reply signal is initiated at station B. This is done by moving a selector switch CB to e.g. position 2B. This energizes a relay SB which energizes a relay RB for the charging time of a condenser BC, e.g. six seconds, during which time a 38 c/s signal is sent to line from an A.C. source GB38. Relay RB also de-energizes LAB to extinguish the indicator BAL and connects D.C. source b to line. At the station A the A.C. signal is passed by the 38 c/s filter FA38 and operates a relay MA which energizes LBA from the D.C. source b at station B. LBA locks at LBA2, operates an indicator lamp or siren AMB and disconnects the D.C. source a from line. The selector switches CA, CB may be movable to other positions, Fig. 2 (not shown), in which A.C. signals of other frequencies are transmitted, by duplicating for each frequency, the station equipment shown.
Patent GB-593926-A (GB)
Title: Improvements in presses for the extrusion of metal
IPC: B21C25/06
Filed: 1945-06-20
Abstract: 593,926. Extruding. HENLEYS TELEGRAPH WORKS CO., Ltd., W. T., JUDGE, E. E., and FRY, F. H. June 20, 1945, No. 15695. [Class 83 (iv)) In a press for extruding a metal sheathing between a point and a die, the point being carried on the front end of a holder supported from the rear of the container and the die being carried in the front end wall of the container, a locating ring with apertures for the passage of metal is held under axial compression between the point holder and the container front end wall. The container B is held in a yoke L connected by columns M with the cylinder J of a hydraulic press having an annular ram G extending into the container around a hollow holder E for the point D. When the ram is in its rearward position as shown, the container is charged with molten lead through an inlet N and on the forward stroke of the ram this lead is extruded between the point D and a die C to form a sheathing around a cable which passes through the holder E and point D. The pressure within the container during the working stroke tends to separate the die and point with consequent non-uniformity in the thickness of the sheathing. To avoid this defect a locating ring P is inserted between the front end wall of the container and the end of the holder E and is placed under compression equivalent to the force that would be exerted between the point and the die by the metal during the working stroke. The ring has apertures Q for the passage of the metal and is placed under compression by means of a screwed sleeve R which presses on the end of the ring. In a modified form, Fig. 2, the holding ring S of the die C is adjustable endwise by means of a screwed sleeve T and is centred by wedge bolts U acting on the conical external surface of a ring Q in which the ring S fits. In a further form, the locating ring is extended to form a sleeve screwing through the front end wall of the container. Specification 229,846, [Class 83 (iv)], is referred to.
Patent GB-1213323-A (GB)
Title: Refrigerant feed control
IPC: F25B41/00
Filed: 1968-04-02
Abstract: 1,213,323. Valves. REFRIGERATING SPECIALTIES CO. 2 April, 1968 [3 April, 1967; 8 March, 1968], No. 15916/68. Heading F2V. [Also in Division F4] A feed control 10, Fig. 1, for liquefied refrigerant comprises a housing having an inlet 18, Fig. 2, and an outlet 55, a first conduit between the inlet and outlet having spaced flow control means 46, a second conduit 26 interconnecting the inlet and outlet and containing reciprocable means 36 responsive to the pressure difference between the inlet and outlet, and means 41 interconnecting the reciprocable means and the flow control means 46 to vary the flow through the means 48 to maintain a constant flow at the outlet. An adjustable stop having a calibrated sleeve 66 to co-operate with a groove line on a sleeve 68 provided with sight slots determines the lift of the valve 48 and hence the flow rate, the pressure drop across this valve being held constant by the valve 46 which is held slightly open by the spring 40 once the pressures above and below the means 36 have been equalized. The valve 46 has a sleeve provided with triangular castellations 44 and the lower face of the means 36 may be connected to the outlet through a narrow bore auxiliary passage to eliminate the effect of flow variations in the outlet. A valve face 38, which prevents reverse flow past the means 36 when the valve 48 is closed, may have a shallower inclination to the valve axis than its seat so that contact takes place on a circle spaced from the surface 22 to prevent distortion of the close clearance between the latter and the reciprocable means. In a further modification, the valve 46 is arranged downstream of the valve 48 and is connected to a reciprocable plunger having a lower face which is formed from the material known by the Trade Mark "Teflon" and serves as a single-beat closure with a part in the housing. The evaporators 11, which may be of the shell and tube or single or coiled pipe variety, are supplied through the controls from a pump 94 and a surge tank 17, an on-off solenoid valve 21, and a pressure regulator 13 may be used in conjunction with them and they may be situated on separate floors of a building.
Patent GB-529413-A (GB)
Title: Improvements in or relating to the rivetting of thin plates
IPC: B21D22/04
Filed: 1939-05-30
Abstract: 529,413. Riveting metal joints. FRANKFURTER MASCHINENBAU AKT.-GES., (vorm. Pokorny & Wittekind). May 30, 1939, No. 15976. Convention date, May 30, 1938. [Class 83 (iv)] In a method of producing a countersunk rivet hole in thin metal plates α, α, a countersunk recess is first formed by pressing the plates between a countersinking tool f and an anvil b and the rivet hole is then formed by a drill i moving axially within a bore k of the tool f.
Patent GB-329515-A (GB)
Title: An improved distributor for manure and other material
IPC: A01C15/08
Filed: 1929-05-23
Abstract: 329,515. Higgins, M. May 23, 1929. Manure &c. distributers.-A machine for distributing manure &c. comprises a hopper having outlet openings in the bottom over which is reciprocated a feeder plate having lateral projections and passing through twopart fittings that are secured over the outlet openings and are adapted to scrape the feeder plate, a shifting-link motion being incorporated in the mechanism for reciprocating the feeder plate to allow of variation of the stroke. The top of the hopper 1 is hinged at 2a and the bottom at 3<a>, the latter being held closed by pivoted bolts 4 having wing nuts 6 passing below slotted straps 5. Outlet openings 7 are spaced along the bottom 3 over a ridge-shaped spreader 7<a>. The fittings over the openings comprise upper and lower hollow castings 9, 10 bolted across the hopper, the lower castings containing openings 12 above the openings 7 and recesses 10<a> through which the feeder plate 8 passes. The side edges of the plate 8 are recessed so as to leave comparatively wide fingers 14 at intervals, with narrow fingers 15 midway between them and fingers 16 of intermediate width between the fingers 14 and 15. A rack 17 on the plate 8 gears with a pinion 18 on a shaft 20 rocked by means of an arm 22, a rod 23, a block 24, a pivoted link 25, a rod 36, and a crank arm 37 on a shaft 38 driven by bevel gearing 39, a shaft 40, spur gearing 41, 42, and a travelling wheel 43. The stroke is adjusted by moving the block 24 in the pivoted link 25 by means of lever and link mechanism 30, 31 &c. The axles of the wheels 43 are bolted to a cross-beam 29 fastened to brackets on bars 46 that are fixed on the end plates of the hopper 1 and carry draught shafts. In a modification the hopper may be mounted behind a vehicle and the spur wheel 42 driven by chain gearing from a wheel of the vehicle. An agitating bar 48 provided with pins is reciprocat.ed longitudinally through the hopper by means of a rack 49 meshing with the top of the pinion 18. Instead of a single feeder plate 8 passing longitudinally through the hopper there may be a number of plates passing transversely through it.
Patent GB-591588-A (GB)
Title: Improvements in apparatus for generating synthetic smoke
IPC: F41H9/06
Filed: 1944-08-22
Abstract: 591,588. Screw-and-nut gearing. ELECTRIC BOAT CO. Aug. 22, 1944, No. 16045. Convention date, Sept. 23, 1942. [Class 80(iii)] [Also in Groups VI, XXI and XXIX] An apparatus for discharging synthetic smoke comprises a container 10, a discharge conduit 29, and a valve 28 for closing the outlet from the container, the valve having a screw-threaded stem 23 which is a loose fit in the corresponding thread in valve body and is provided with a packing 26. When the valve is fully open, the face 28<1> seals off the screw thread from the fluid being discharged. The valve is operated by a pivoted handle 21 which can be folded down, as shown by the dotted lines, when not in use. Specification 587,688, [Group VI], is referred to.
Patent GB-1384537-A (GB)
Title: Wound coverings
IPC: A61L15/28
Filed: 1971-05-20
Abstract: 1384537 Coated wound covering STERLING-WINTHROP GROUP Ltd 22 May 1972 [20 May 1971] 16149/71 Heading B2E [Also in Division A5] A wound covering capable of adhering to moistened mucosal or skin surfaces includes a film comprising a water-soluble (including colloid-forming) film-forming material and, on one face of the film, a water-insoluble metal salt of the film-forming material. The watersoluble material may be of sodium carboxymethylcellulose or alginate while the water-insoluble material may be of the corresponding alkaline earth metal compounds. The film may be supported on a fabric or plastics sheet but is preferably used unsupported and may contain humectants or plasticisers (glycerol or sonbitol), flavours, essences, dyes, pigments (TiO 2  or ZnO), or medicaments such as lignocaine, cetylpyridinium chloride, penicillin or allantoin. To form the water-insoluble coating, a solution of an alkaline earth metal salt, particularly calcium chloride, may be applied by brush or roller to a surface of the partially dried film to react with the water-soluble material and produce an insoluble salt layer. The film may be formed by cutting into slices a rod formed by extrusion of a paste or by applying a solution as drops to a surface and rolling flat.
Patent GB-379743-A (GB)
Title: Improvements relating to drying-plants
IPC: F26B17/10
Filed: 1931-06-04
Abstract: 379,743. Drying during suspension in gaseous currents ; helical-blade conveyer drying apparatus. SCHULWITZ, R., 21, Artilleriestrasse, Berlin. June 4, 1931, No. 16300. [Class 34 (ii).] In an apparatus for drying materials such as agricultural products, the gases leaving an indirectly heated preliminary dryer are utilized in a final dryer of the pneumatic type. The materials are fed to the preliminary dryer 3 which comprises three troughs with helical conveyers, indirectly heated by gases supplied from a furnace 1 by a flue 2. The troughs are double-walled, the outer wall being corrugated or formed of overlapping members with stuffing- boxes, to allow of expansion. The speed of the helices, or their pitch, decreases as the materials advance in the troughs, to compensate for the decrease in volume of the materials. A rotary screen delivers fine dry material from the preliminary dryer either to a discharge pipe or to a conveyer 9 for further treatment. The coarser material is charged at 10 into a pipe 11 whence it is carried through pipe 12 and a wider pipe 14 by gases brought from the furnace 1 by a flue 23 under suction from a fan 15. The pipe 14 is further heated by the gases led in by flue 25 from the preliminary dryer, and further charged at 13 with the material from the conveyer 9. Fine material is deposited by a dust separator 17 and discharged either directly or to a cooling conveyer 18. The coarser material, intercepted by an inertia separator 16, is classified by a double screen 21 into three parts, the finer being delivered to the conveyer 18, the medium returned to the charging device 13, and the coarser being returned to the preliminary dryer or to the charging device 10. Cold air may be admitted to the pipes 11, 14. Agitating wheels may be provided at bends in the pipes. In Fig. 3 (not shown) the final dryer, the preliminary dryer, and the furnace are arranged one above the other, the final dryer being horizontal.
Patent GB-377639-A (GB)
Title: Improvements in or relating to superheterodyne receivers
IPC: H04B1/26
Filed: 1932-06-09
Abstract: 377,639. Valve circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 9, 1932, No. 16306. Convention date, June 22, 1931. [Class 40 (v).] In a superheterodyne wireless receiver, a diode 3, 5 is used as the second detector. Tuned byepasses 8, 9 and 14, 15 remove the intermediate frequency and its second harmonic respectively from the low-frequency amplifiers 4, 5, 6, and 17.
Patent GB-594109-A (GB)
Title: Improvements in or relating to the cooling of valve guides of internal combustion engines
IPC: F01P3/14
Filed: 1945-06-26
Abstract: 594,109. Assembling force fits. LAGONDA, Ltd., and BENTLEY, W. O. June 26, 1945, No. 16309. [Class 83 (iv)] [Also in Group XXVII] In a water-cooled internal-combustion engine, the valve guides 13 pass through the water jacket and have two interference fits 15, 16 of decreasing diameter in the two walls of the jacket.
Patent GB-554162-A (GB)
Title: Improvements in or relating to steering arrangements for vehicles having crawler driving tracks
IPC: B62D11/08
Filed: 1941-12-19
Abstract: 554,162. Driving and steering endless-track vehicles. CLARKE, R. E., and NEAL & CO., Ltd., R. H. Dec. 19, 1941, No. 16404. [Class 79 (ii)] [Also in Group XXXIV] An endless-track crane or other turntable machine or vehicle is driven and steered by means of an epicyclic gear and clutch unit provided in the drive to each track and controlled by brakes so that the speed of each track may be independently varied between a maximum and zero, a single steering control member being provided movement of which in one direction affects the brakes on one gear unit while movement in the other direction affects only the other unit. In the construction shown a transverse shaft 14 is driven through bevel gearing 12 from a vertical shaft 11 co-axial with the turntable pivot. Each end of the transverse shaft carries a sun pinion 15 of an epicyclic clutch comprising a toothed annulus 24 controlled by a brake 23a and planet pinions 20 mounted on a carrier 18 fixed to a stub shaft 16 driving the corresponding track 26 through a spur gear train 25. Each planet carrier is provided with a brake 18a. Normally both brakes 18a are free and both brakes 23a are applied by springs 51 so that both tracks are driven as the same rate through the epicyclic gears. To steer the vehicle the brake 23a on one side is wholly or partially released and the corresponding brake 18a is applied. To stop the vehicle both brakes 18a are applied and both brakes 23a are released. A steering wheel or other device in the superstructure (not shown) can impart a sliding movement to a sleeve 28 on the vertical shaft 11, this sleeve acting through a bellcrank lever 30, 33 and link 34 on a lever 35, 38 connected by links 39 to T-levers 43 one for each side of the vehicle. The T-levers are connected by rods 47, 48 to the brakes 23a, 18a and are normally kept by springs 51 in the position shown in Fig. 3 in which the brakes 23a are applied. When the steering wheel is rotated the lever 35, 38 is rocked and pushed one rod 39 and pulls the other. The pushed rod has no effect on its brakes, due to a pin-and-slot connection 41, 42 but the other rod rocks its lever 43 and releases its brake 23a and applies the brake 18a. To apply both brakes 18a simultaneously a vertical rod 54 passing through the shaft 11 is operated and acts on both levers 43 through a lever 55, shaft 61, arms 63, rods 64, and pin-and-slot connections 56, 66. The two sets of pin-and-slot connections allow operation of the brakes either by the steering wheel on the rod 54 'independently of each other. The brakes comprixe shoes 23a, 23b connected at one end by a bolt 23c and a spring 23d, and anchored by a link 23f and springs 23e. The free ends of the brake shoes are pivoted to toggle links 49, 50 connected at their other ends to the horizontally-moving operating rods 47 or 48.
Patent GB-1464429-A (GB)
Title: Soup mix composition and process for producing same
IPC: A23L23/10
Filed: 1974-04-23
Abstract: 1464429 Instant soup mix C P C INTERNATIONAL INC 23 April 1974 16416/74 Heading A2B A dry composition capable of forming a thick soup within 60 seconds or less after mixing with boiling or hot water is made by mixing particulate pulverized dry components of the soup including at least one of previously gelatinized wheat flour, previously gelatinized waxy corn starch, or previously gelatinized white potato starch with an edible oil or fat component and an oleophilic surfactant having an HLB value of 6 or less to coat the surfaces of the particles with the fat and surfactant and then mixing in a finely divided edible dispersion promoting material, moistening the mixture to form agglomerates and drying and screening to produce granules in the size range of 10-60 US mesh. Fines and oversize agglomerates can be recycled. The dispersion promoting material may be dextrin, lactose or corn syrup solids and the surfactant may be a sorbitan or sucrose fatty acid ester.