baber/WOPTO huggingface dataset:
Patent GB-170031-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B1/00
Filed: 1920-05-11
Abstract: 170,031. Ricardo, H. R. May 11, 1920. Values; valve-gear. - In an engine in which the air charge enters the working cylinder through one or more passages C, which also form the exhaust passage from the cylinder, the air being supplied by a pump whose crank is 50‹ to 70‹ behind the crank of the working piston, the inlet and delivery valves G, H of the pump and the exhaust valve J are mounted together on the pump cylinder head and are worked from a shaft N, Fig. 5, rotating at half crankshaft speed. The valves G, H are piston valves reciprocated by eccentrics G<6>, H<6>.
Patent GB-717123-A (GB)
Title: Control system for electric motors
IPC: H02P7/293
Filed: 1951-05-31
Abstract: 717,123. Control of D.C. motors. LICENTIA PATENT-VERWALTUNGS GES. May 31, 1951 [May 31, 1950], No. 13001/51. Class 38(3) [Also in Group XXXV] The armature of an electric motor 1 is supplied, through a grid-controlled rectifier 2 and a changeover switch 3. the armature voltage of the motor being compared with a reference voltage derived from a potential divider with control lever 4, and the difference voltage applied to the grid of a control valve 8. A phase-shift device 9 is controlled by the valve 8 to influence the grid potential of the rectifier 2 in such a manner that the anode currents of the elements 8 and 2 are reduced and increased together. When the control lever 4 is moved to reduce the speed of the motor, so causing the current iv to fall to a low value, a polarized underload relay 10 becomes effective to actuate a step-by-step switch 12 and reverse the change-over switch 3. Thus. the device 2 acts as an inverter and the motor is braked regeneratively until the change-over switch is again reversed, and the motor operated at the selected speed. If the control, lever is actuated to pass through the neutral position of the voltage divider, no second reversal of the change-over switch takes place and the motor is made to run in the opposite direction. A contact 13 is opened for a short period each time the switch 3 is actuated; thereby providing an additional safeguard. When the motor current exceeds a predetermined safe value, the voltage across resistor 16 exceeds that of a biasing source 18 and thereby reduces the rectifier voltage. A rectifier 19 and resistor 20 protects the winding b of relay 10 against excessive voltage. The field excitation of the motor may be reduced by moving the control lever 4 beyond the end position of the voltage divider.
Patent GB-450394-A (GB)
Title: Brake mechanism
IPC: B60T7/10
Filed: 1936-01-01
Abstract: 450,394. Locking levers. RILEY (COVENTRY), Ltd., RILEY, S., and RUSH, H., Riley Works, Durbar Avenue, Lockhurst Lane, Coventry. Jan. 1, 1936, No. 13026. Divided out of 449,637. [Class 80 (iii)] [See also Group XXXIV] A locking device for a brakeoperating lever comprises a plurality of pawls which extend different amounts to engage in succession with the teeth of a stationary ratchet, the pawls being spring-pressed to engage the teeth and being disengaged by a spring-pressed latch. Two pawls 12, 13 pivoted on the hand lever 9 at 14 extend different amounts to engage a ratchet 11 under the influence of spring plungers 15. The pawls are disengaged by a push latch 19 spring-pressed at 20 and guided in a stop-pin 22. The latch 19 and plungers 15 are arranged in cut-away parts of the lever 9.
Patent GB-1132275-A (GB)
Title: Polyoxymethylenic copolymers
IPC: C08G2/18
Filed: 1966-03-24
Abstract: 1,132,275. Trioxan - 3,5,8 - trioxa - bicyclo- [4,4,0] - decane copolymers. MONTECATINI SOCIETA GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. 24 March, 1966 [7 April, 1965], No. 13067/66. Heading C3P. Novel copolymers comprising sequences of oxymethylene units separated by units of the formula derived from 3,5,8 - trioxa - bicycio - [4,4,0] - decane through the opening of the acetalic bond, are prepared by copolymerizing the monomers in the presence of a Lewis acid catalyst containing chlorine or fluorine under anhydrous or substantially anhydrous conditions at 30 to 120 C. A third monomer may also be present e.g. dioxolan, ethylene oxide, 2,4 - dimethyl - dioxolan, 4 - methyl - metadioxan, 2,3 - ethylene - dioxy - dioxan, hexahydro - benzotrioxepane, and hexahydrobenzodioxolan. Suitable catalysts are the antimony fluorides, antimony fluoroborate, PCl 5 , FeCl 3 , BF 3 , BF 3 .(CH 3 ) 2 S, BF 3 .(C 2 H 5 ) 2 O SnCl 4 .
Patent GB-131139-A (GB)
Title: Improved Manufacture of Pickers for Looms.
Inventor: LARSSON FREDRIK THEODOR
IPC: D03D49/36
Filed: 1918-08-13
Abstract: 131,139. Larsson, F. T. Aug. 13, 1918. Pickers are made by connecting together suitably shaped plates punched or cut from sheets of vulcanized fibre, suphate wood pulp, or similar material, the plates being provided with holes for the connecting rivets &c. and to form the opeming for the actuating strap or lever. In a picker for cotton looms, three central plates 1, Figs. 1 and 2, and four side plates 2 are used, the lower parts of the plates 1 forming the picker guide-foot. The plates have holes 3, 4 for the rivets and the strap respectively, and the spindle hole 5 is drilled after the plates are connected together. The hole 4 in the central plate 1 extends to the top thereof. Rivets 7 connect the tops 6 of the plates 1 to the adjacent plates 2, and the plates are preferably stuck together by an adhesive. Metal mountings fixed by the rivets may be provided on the outer sides of the picker. In a picker for woollen looms, four plates 8, Fig. 7, are riveted together with square plates 9 at the shuttle abutments, and the hole 10 for the spindle is formed by bending one or more plates 11 around the upper ends of the plates 8.
Patent GB-623844-A (GB)
Title: Drainage manholes
IPC: E02D29/12
Filed: 1947-05-16
Abstract: 623,844. Inspection chambers. HALL, R. E. May 16, 1947, No. 13296. [Class 33] In a method of building a drainage manhole, rectangular blocks of brickwork dimensions having apertures therein and provided with sockets to receive the drains and half sockets to receive the channel are built into the wall. As shown blocks 4 and 5 having sockets 11 and 12 to receive drains 2 and 3 and half sockets 9 and 10 to receive the channel 8 are built onto a concrete base and the inspection chamber completed by brickwork. The alignment of aperture and spigots is such that liquid may flow through the chamber without interruption.
Patent GB-1145606-A (GB)
Title: Lowerable a-frame assembly for mobile cranes and the like
IPC: B66C23/36
Filed: 1967-03-21
Abstract: 1,145,606. Cranes. RUSTON-BUCYRUS Ltd. 21 March, 1967 [18 April, 1966], No. 13310/67. Heading B8B. [Also in Divisions E1 and F2] An A-frame, e.g. for a crane or excavator, comprises a compression leg 10 and a tension leg 11 which are pivotally mounted at their lower ends on a frame 2, the leg 11 comprising rigid upper and lower links 13, 14 interconnected by a pin and inclined slot connection 21, 19 so that upon release of tension on the leg 11 the links 13, 14 move out of alignment and begin to fold together under gravity. When the links 13, 14 are aligned they are releasably locked in this position by a pin 24. Stops 25 may be provided to ensure that the links 13, 14 do not fold in the wrong direction and further stops or supports may be provided to support the A- frame when it is in its fully lowered position.
Patent GB-1382403-A (GB)
Title: Methods of and devices for automatically assembling shoe soles and uppers
IPC: A43D25/06
Filed: 1973-03-20
Abstract: 1382403 Boots &c CENTRE TECHNIQUE DU CUIR 20 March 1973 [31 March 1972] 13440/73 Heading A3B Apparatus for bonding a sole 2 to the bottom of a lasted upper 3 includes a frame 5, having an inner face which masks the upper to leave uncovered those areas to which adhesive is to, be applied, the inner face of the frame 5 also being formed with a groove 12 which is adapted to receive the edge of the sole 2 in order to position the sole relative to the lasted upper 3 prior to pressure being applied. The inner face of the frame 5 may be formed of a soft resilient material 13, e.g. a silicone elastomer, the material 13 being detachable so that it may be replaced to suit shoes of different sizes and/or styles. The frame 5 is formed in two parts, each part being pivoted to a base plate 9 at 8. The sole 2 is pressed against the upper by a plate 6 operated by an actuator 14, the plate 6 carrying a pad 19 which matches the shape of the sole. The pad 19 is also formed of soft resilient material and is also interchangeable. In use a lasted upper 3, 4 is placed on supports 11, the frame 5 is closed about the shoe, adhesive is applied to the lasting margins and optionally to the sole, the sole 2 is placed on the frame 5 and plate 6 is lowered, the edges of the sole 2 being pressed into the groove 12 to position the sole 2 before full pressure is applied. The masking action of the material 13 prevents smudging or guttering of the adhesive and also permits the use of liquid adhesives e.g. those which set as a result of a chemical reaction.
Patent GB-593381-A (GB)
Title: Apparatus for testing parachutes
IPC: B64D21/00
Filed: 1945-05-29
Abstract: 593,381. Testing parachutes. CLEVELAND, F. J. (Pioneer Parachute Co., Inc.). May 29, 1945. No. 13484. [Class 4] Apparatus for testing parachutes comprises means. whereby the parachute can be swung in a circular path at high velocity to simulate operating conditions. A vertical shaft 6 is mounted at the top of a tower 2 and is driven through gearing 8, shaft 10 and clutch 14 by an engine 12 on the ground. An arm 16 is hinged to the shaft 6 and its outer end is connected by a cable 26 to a slidable counterweight 30. The parachute pack 36 to be tested is supported by a plate 34 connected by wires 18, 20 to the end of the arm 16. The weight and characteristics of plate 34 are arranged to correspond with those of the load to be supported by the parachute when in use. The rip cord of the parachute is attached to a control line 44 passing through the centre of shaft 6 and extending to a point near the engine 12 so that it may be pulled by the operator. The line 44 is normally maintained inoperative by a spring attached to the wire 18. A motion picture camera 43 is resiliently mounted on the wire 18 and is focused on the pack 36. The mounting includes a rod 46 pivoted to the wire 18 and slidable in a collar fixed to the wire 20 so that relative movement. of the wires may take place without affecting the focusing of the camera. The operating lever of the camera is connected to the line 44 by an elastic cable. When at rest, the wires and parachute pack hang downwardly in the dotted line position and the arm 16 is held in a raised position by the weight 30 to prevent the pack dragging on the ground. To test the parachute, the the operator engages the clutch 14 by means of a lever 64 and the arm and wires then extend to the full line position under the action of centrifugal force acting on the plate 34 and pack 36. When the desired velocity is attained, the control line 44 is pulled to first operate camera 43 and then release the parachute. At the same time the clutch 14 is disengaged so that the apparatus slows down under the action of the open parachute. In a modification, Fig. 5 (not shown), the supporting plate for the pack is detachably connected to suspension wires 118, 120 and may be. released by pulling a control line 144 to allow the pack and plate to fly off at a tangent. The release of the plate operates the rip cord of the parachute.
Patent GB-134852-A (GB)
IPC: F28B1/00
Abstract: 134,852. Ehrhart, R. N. Nov. 8, 1918, [Convention date]. Straight-tube apparatus.-A surface condenser comprises a shell having parallel walls 1, 2 and a semi-circular bottom 3 which terminates in a condensate outlet 10. The fluid to be condensed enters by a port 5 and traverses two sides of nests of cooling-tubes A, B, arranged on'either side of a central wedge-sbaped passage 9 and separated by diaphragms 14, 15, directed towards lateral outlets 12, 13 for air and non-condensable fluids.
Patent GB-987171-A (GB)
Title: A machine for extracting irradiated nuclear fuel cartridges from storage casings
Inventor: GUILLOTEAU RENE
IPC: G21C19/34
Filed: 1961-04-14
Abstract: 987,171. Shearing. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 14, 1961 [April 15, 1960], No. 13518/61. Heading B3W. [Also in Division G6] A machine for cutting in.half a storage casing E containing irradiated fuel elements comprises two similar assemblies B, C (assembly B being shown in elevation and assembly C in section) each assembly having a clamp 3 operated by a jack 4 for gripping an end of the casing, a cutting head A being interposed between the assemblies B, C. Each clamp holds the casing E within a guide tube 2 pivoted about an axis O 1  on a carriage 5, a traction force being applied to the casing by jacks 8 acting on the carriages through rods 17. The carriages 5 are guided for horizontal movement by the horizontal portions 6a of slots 6 provided in fixed checks 7 and are pivoted about axes O 2  in the slots so that after the casing has been cut the jacks 8 may move the carriages and the inclined slot portions 6b cause the tubes 2 to be rotated into the vertical position (shown in chain-lines) whereby the fuel elements are discharged. The cutting head A comprises a cutting wheel 9 and a counter-roller 10 which are caused to rotate around the periphery of the casing by an electric motor operating through bevel gearing (Fig. 2, not shown). The wheel 9 and roller 10 are applied against the casing by a spring and may be moved in the opposite direction to remove the cutting action by a jack 11 acting through levers (Fig. 4, not shown). The machine is intended for use under water and be remotely controlled (Fig. 6, not shown).
Patent GB-593386-A (GB)
Title: Improvements in thermionic valve voltage regulators
IPC: G05F1/52
Filed: 1945-05-30
Abstract: 593,386. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd., and BAKER, W. S. GRAFF-. May 30,1945, No. 13530. [Classes 38 (ii) and 38 (iv)] Electromotive force.-In a series valve voltage stabilizer, the series valve has a screen electrode connected to a tap of variable potential on a resistor shunting the valve so that stabilization is effected over a wide range of output voltages. The Figure shows an arrangement in which a portion of the load voltage obtained from potentiometer RC is amplified by valve V2, provided with gas discharge cathode voltage stabilizer G and applied to series valve V1 to stabilize the output voltage. The screen potential of V1 is controlled by R1 which is conjointly operated with output voltage setting potentiometer RC.
Patent GB-135399-A (GB)
IPC: D01G19/26
Abstract: 135,399. Hetherington & Sons, J., and Horridge, J. Feb. 28, 1919. Combing-machines.-The detaching-rollers of a combing-machine have the forward and partial reverse movements imparted to them through the medium of a three-armed follower c on the detaching-roller shaft f or on an intermediate shaft. The rollers d<1>, d<2>, d<3> on the follower are engaged in succession by the inclines 1 - - 8 on a hollow cam b on the comb shaft a. The cam is designed to effect the full cycle of movements in one revolution. The follower may have two or four arms and the movements may be imparted to any one of the detaching-rollers.
Patent GB-109835-A (GB)
Title: Improved Means for Raising and Lowering Window Sashes.
Inventor: GIBLIN JOHN JOSEPH
IPC: E05F11/48
Filed: 1916-09-25
Abstract: 109,835. Giblin, J. J., and Stobbs, N. W. Sept. 25, 1916. Sliding-window opening and closing apparatus. - Sliding sashes are opened and closed by cords placed in the centre of the window. For the upper sash, a cord A is secured at one end to a detachable eye plate B on the sash, passing thence over a pulley in a fixed bracket E and through an eye J on the lower sash; the other end of the cord is returned through the eve J to the plate B. For the lower sash, a separate cord H is passed over a second pulley in the bracket E, and the ends are secured to an eye-plate F which is similar to the eye-plate B. The loops of the cords may be secured to a cleat K. For heavy sashes, the cord A may be secured at one end to the window frame, then passed under a pulley L which replaces the plate B, and finally over the pulley in the bracket E and down to the eye J as described above.
Patent GB-606248-A (GB)
Title: Improvements relating to surgical drainage instruments or apparatus
IPC: A61M27/00
Filed: 1946-05-06
Abstract: 606,248. Discharge-collecting appliances. SMITH, F. May 6, 1946, No. 13601. [Class 81(ii)] A surgical drainage apparatus comprises an open-ended dish-shaped member or box A, the interior wall or bore of which tapers or curves first outwardly (B) from and then inwardly (C) towards the centre and is provided with one or more drainage pipes or outlets F (which, if desired, may have covers or stoppers) at the intersection of the tapered or curved positions or at a concentrically arranged surface D therebetween so that fluid entering the apparatus immediately drains away through the (lowermost) drainage pipe. The apparatus may be provided with a plurality of axial studs K and an orifice or orifices H, with or without stoppers, for the passage and support of a draining tube or tubes M or for inspection or irrigation, the draining tube or tubes being further supported, if desired, by a helical wire O. The edge of the open-end may be serrated or cushioned. According to the Provisional Specification, the apparatus may be made of a transparent plastic substance such as methyl methacrylate polymer and may have an elastic or resilient ring around the edge of the open-end, the contour of which may be somewhat concave.
Patent GB-106222-A (GB)
Title: Improvements in Grease-cup Lubricators.
Inventor: TYLDESLEY FRED
IPC: F16N11/02
Filed: 1916-09-28
Abstract: 106,222. Tyldesley, F. Sept. 28, 1916. Grease-cups.-To prevent accidental movement in a grease-cup having a screwed cap i, annular grooves h on a stem g secured to the cap are engaged by a number of spring arms d projecting inwardly from a ring mounted in the base j. The Provisional Specification describes also the application of the device to a grease-cup having a sliding piston therein.
Patent GB-317121-A (GB)
Title: Process for the manufacture of a substance containing silver chloride in the colloidal state
IPC: C01G5/00
Filed: 1928-05-10
Abstract: 317,121. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). May 10, 1928. Colloidal sols.-A substance containing colloidal silver chloride is prepared by treating a silver albumen solution with chlorine. A silver protein compound prepared as described in Specification 18478/97 is treated with chlorine for one hour at ordinary temperature, the solution being kept neutral by the addition of small quantities of caustic soda. The solution is then dialysed with water until the latter no longer gives a chlorine reaction with silver nitrate and the solution is then evaporated to dryness in vacuo at a temperature not above 40‹ C. The substance obtained is intended for medicinal use.
Patent GB-248970-A (GB)
Title: Improvements in or relating to electric rotors and their method of manufacture
IPC: H02K15/00
Filed: 1925-05-27
Abstract: 248,970. Jackson, W. J. Mellersh-, (Allis, L., and Tower, E. B. H.). May 27, 1925. Coils and conductors; apparatus for making and assembling.-A rotor for a machine such as an induction motor has a core 1 with longitudinal peripheral slots, and a sheet metal winding with conductors 2 in the slots and end-rings formed by the parts 3 of the windings, the rings being uniformly contracted to hold the conductors in position. The junctures between the conductors and end-rings are bent radially and the conductors are turned on edge to enter the slots. To apply the sheet conductor to the rotor, the core is placed on a shaft between the rollers 11, 12, Fig. 8, and the sheet winding is pressed into its position by the rollers 9, 10. The conductors may be forced to the bottom of the slots and to expand against the sides by prongs on a roller. To contract the end-rings, the rotor is placed on the pillar 20, Fig. 11, and is surrounded by clamping rings 21 with inwardly moving jaws 22 engaging the end-rings. Contracting rings 25 with inclined inner faces enclose the jaws 22 and these are forced inwards to contract the rings when the plunger 18 is depressed.
Patent GB-916365-A (GB)
Title: Improvements in and relating to semi-conductor devices
Inventor: WOOD ALAN JOHN
IPC: H01L29/00
Filed: 1958-05-01
Abstract: 916,365. Semi-conductor devices. ENGLISH ELECTRIC CO. Ltd. April 30, 1959 [May 1, 1958], No. 13985/58. Class 37. During the manufacture of a silicon molybdenum rectifier the ohmic and junction joints are formed in different stages at different temperatures. This is said to avoid distortion at the molybdenum joint caused, it is thought, by silicon transfer through the solder to the molybdenum. Initially the lower molybdenum disc, an aluminium disc of thickness 0.001 inch, a silicon disc and a plain molybdenum upper disc are assembled in a jig and heated to 800 ‹ C. for two minutes. At the same time pressure is applied to determine the junction thickness (0.0005 inch). The jig is then allowed to cool to 500‹ C. and the plain molybdenum disc is replaced by a gold-plated upper molybdenum disc and a 99% gold, 1% antimony foil placed in position on the silicon. The assembly is then heated to 500‹ C. for two minutes to make the ohmic joint. The lower molybdenum disc may be silver-coated to make external connections. Specifications 796,682 and 916,366 are referred to.
Patent GB-1508032-A (GB)
Title: Textured photographic base paper process and product
IPC: G03C1/79
Filed: 1975-04-04
Abstract: 1508032 Polyolefin coated photographic base paper SCHOELLER TECHNICAL PAPERS INC 4 April 1975 [15 April 1974] 14006/75 Heading B2E [Also in Division B5] The exposed surface of a polyolefin film at least 1 mil thick adhered to one surface of a paper substrate to form a photographic base paper has a pattern of peaks and valleys, whose valley to peak height is in the range 0.4 to 0.7 mils. The preferred polyolefins are polyethylene and polypropylene. Such a polyolefin layer may be applied by extrusion coating, the pattern being formed by an embossed chill roller while the coating is still plastic.