baber/WOPTO huggingface dataset:
Patent GB-506979-A (GB)
Title: Improvements in or relating to film winding devices for cinematograph projection apparatus
IPC: G03B21/32
Filed: 1938-08-29
Abstract: 506,979. Kinematograph apparatus. MESSMER, H. Aug. 29, 1938, No. 25276. [Class 97 (i)] In film-winding means wherein the film is coiled within a drum by a belt-driven roller carried by pivoted arm biassed by a spring, the roller is of such length that the film may be wound once completely round it. As shown, the film passes once completely around a roller 5 carried by an arm 7, which is mounted on a spindle 6, and is biassed by a spring 14. The roller is rotated by chains 10, 13, and chain wheels 9, 11, 12, to turn the drum 1 about its spindle 2 and wind the film within it. The arm may be held, when the roller is central in the drum, by a spring-pressed pawl 15 having a nose 16 to engage a recess 17 in the end of the arm. The drum may be axially movable clear of the roller 5, and may have a hinged part 1<1> to facilitate removal of the wound film.
Patent GB-900510-A (GB)
Title: Automatic signalling or controlling means actuated by a railway vehicle or train
IPC: B61L29/28
Filed: 1960-07-20
Abstract: 900,510. Track apparatus. FORGES ET ATELIERS DE CONSTRUCTION ELECTRIQUES DE JEUMONT. July 20, 1960 [July 22, 1959; Feb. 23, 1960], No. 25277/60. Class 105. In railway signalling automatic means for operating a signal or controlling an operation, e.g. controlling barriers B1, B2 at a levelcrossing, condensers charged from source S are discharged to control the opening and closing of the barrers when the wheels associated with a leading axle 1 of a train pass over U-shaped metal blades 2a, 2b and 3a, 3b respectively, and depress these blades into contact with stirrups 40 (Fig. 4, not shown), positioned beneath the blades and electrically connected to rails A1, A2. The charge on condenser 6 holds relay 5 in its energized state via metal blades 2a, 2b connected in series, lead 2C and its own contact 10, and contact 16, relay 5, holds gates B1, B2 in their open position. When the leading axle passes over blades 2a, 2b, condenser 6 discharges via two parallel paths through the blades and relay 5 releases to operate the barrier closing mechanism. After the train has passed over blades 2a, 2b, condenser 6 is recharged and condenser 4 is charged via contact 10, relay 5 released, metal blades 3a, 3b and primary winding 11a of transformer 11. As the train passes over blades 3a, 3b condenser 4 is discharged through the primary winding and induces an impulse in the transformer secondary which re-energizes relay 5. The relay holds over its contact 10 and at its contact 16 operates the barrieropening mechanism.
Patent GB-1048252-A (GB)
Title: Improvements in means for the volumetric measuring of the flow of milk
Inventor: DYKE EDWARD
IPC: G01F3/38
Filed: 1962-07-03
Abstract: 1,048,252. Milk measuring devices. GASCOIGNES (READING) Ltd. Oct. 3, 1963 [July 3, 1962], No. 25361/62. Heading A1M. A milk measuring appliance comprises a receptacle 1 connected via pipeline 11 to the vacuum line 9 and via pipe 4 with a teat cup cluster 5, and a transparent milk delivery tube 15 extending alongside the receptacle and connected at its upper end with a three-way valve 12 communicating also with the interior of the receptacle 1 and at its lower end with a milk outlet 16 at the base of the receptacle. The valve 12 is further connected with pipe 13 with the milk line 21. In one position of valve 12, tube 15 is connected to the vacuum space 20 above the milk in receptacle 1. During milking, milk flows into receptacle 1 which communicates with tube 15 via outlet 16 the accumulating quantity of milk being indicated on scale 18. Valve 12 is then adjusted so that tube 15 communicates with the milk line, air being admitted to receptacle 1 via the teat cups and the milk passing up tube 15 into the milk line. A milk sampling tap 17, which may also be used to admit air to receptacle 1, is provided.
Patent GB-824451-A (GB)
Title: Process for the polymerisation of ethylenically unsaturated hydrocarbons
IPC: C08F2/00
Filed: 1957-08-12
Abstract: A catalyst for polymerizing ethylenically unsaturated hydrocarbons comprises a suspension of the reaction product of aluminium trichloride, titanium tetrachloride and an alkali metal in an organic liquid preferably an aliphatic hydrocarbon.  The catalyst may be prepared by mixing the alkali metal in a finely divided form with the aluminium trichloride in the organic liquid with the exclusion of oxygen, e.g. in an atmosphere of ethylene or nitrogen and then adding the titanium tetrachloride.  In the case of the use of a nitrogen atmosphere, however, this must be replaced before the addition of the tetrachloride by the monomer to be polymerized.ALSO:Ethylenically unsaturated hydrocarbons are polymerized by contacting them with a suspension of the reacting product of aluminium trichloride, titanium tetrachloride, and an alkali metal in an organic liquid at a pressure of less than 100 atmospheres and at a temperature not exceeding 120 DEG  C.  Specified hydrocarbons are ethylene, propylene, butylene, isoprene, butadiene, styrene, ethylene-propylene and butadene-isoprene.  It is preferred that the organic liquid is an aliphatic hydrocarbon while there may be incorporated in the catalyst suspension one or more anhydrous finely-divided solid substances which do not dissolve in the reaction medium, e.g. a halide of an alkali or alkaline earth metal, carborundum powder, glass powder, fine sand, poly ethylene, polypropylene, polyvinyl chloride, polyvinyl acetate and butadiene-styrene.
Patent GB-1194625-A (GB)
Title: Boron Containing Composite Metallic Films and Plating Baths for their Electroless Deposition
IPC: H01F41/24
Filed: 1968-05-28
Abstract: 1,194,625. Coating with metals. INTERNATIONAL BUSINESS MACHINES CORP. May 28, 1968 [June 19, 1967], No.25421/68. Headings C7A and C7F. A film containing boron Ni, Fe, and Mo is electrolessly deposited on a substrate of e.g. glass, plastics, copper or beryillium-copper using an alkaline solution comprising a boron containing reducing agent having a boron-nitrogen bond, e.g. borones or borazoles, a complexing agent and a solvent, e.g. water, alcohol, dimethyl sulphoxide or tetrahydrofusan. The metal salts may be chlorides, sulphates, nitrates, acetates or sulphamates. The solution may be made alkaline by adding ammonia, triethanolamine, glycine or metal hydroxides. These may be used as complexing agents or sodium potassium tartrate or sodium citrate or hydrozy acetate may be used. Hypophosphites or hydrazines may be used as additional reducing agents. The substrate may be dipped in stannous chloride followed by palladium chloride solutions prior to deposition. The deposited film is composed of (% by weight):- Mo 1 to 4, Fe 17 to 27, B 0À5 to 1À0, balance Ni.
Patent GB-616330-A (GB)
Title: Improvements in the manufacture of aryl alkyl ketones and carbinols
IPC: C07C45/36
Filed: 1946-08-26
Abstract: Aryl-alkyl ketones with or without the corresponding carbinols or of nuclear halogen substitution derivatives thereof are prepared by the partial oxidation of normal or secondary alkyl aromatic hydrocarbons containing at least one ethyl or higher alkyl group or of nuclear halogen substitution derivatives thereof, wherein the hydrocarbon or halogenated hydrocarbon is heated in the liquid phase, e.g. at a temperature above 100 DEG  C. and in the presence of an oxidation catalyst comprising a metal salt with oxygen which is under a partial pressure above 25 lbs. per sq. in., e.g. at least 50 lbs. per sq. in. The oxidation catalyst may be soluble in the hydrocarbon or halogenated hydrocarbon.  Suitable catalysts are manganese and cobalt salts of organic acids, e.g. salts of lower fatty acids such as acetates, salts of higher fatty acids such as palmitates or stearates or of cyclic aliphatic acids such as naphthenates or of aromatic acids especially monocarboxylic aromatic acids such as benzoates, and salts of iron, copper or lead.  Alkaline earth metal salt especially barium acetate may also be present.  A water binding agent may present, e.g. on organic acid anhydride such as acetic anhydride capable under the conditions prevailing of esterifying the carbinol formed and the carbinol is obtained at least partly in the form of the corresponding ester.  The organic acid anhydride may be present in a quantity equal to at least one molecular proportion of the anhydride.  In examples: (1) oxygen under 100 lbs. pressure is passed into an autoclave containing ethyl benzene with anhydrous manganese acetate in suspension and maintained at 150 DEG  C. to give a mixture of acetophenone, phenyl methyl carbinol and benzoic acid; (2) as in example (1) using as catalyst a mixture of manganese and barium acetates; (3) oxygen is passed into an autoclave at 50 lbs. pressure and 130 DEG  C. containing equimolecular amounts of ethyl benzene and acetic anhydride with anhydrous manganese acetate as catalyst to give the same products as in example (1).
Patent GB-671438-A (GB)
Title: Improvements in or relating to dual fuel (gas-diesel) internal combustion engines
Inventor: SENIOR HERBERT VINCENT
IPC: F02B7/06
Filed: 1949-10-04
Abstract: 671,438. Engines using alternative fuels. ENGLISH ELECTRIC CO., Ltd. Sept. 29, 1950 [Oct. 4, 1949], No. 25455/49. Class 7(ii) In a dual-fuel engine operating alternatively as a diesel engine or a gas engine, a resilient, lost-motion link 3 is arranged between a speed governor 9 and the liquidfuel control-rod 4 which, during operation on gas fuel, is held by a trip mechanism 1 to allow the governor to control the gas supply while keeping the quantity of liquid fuel to the minimum required for pilot injection, the trip mechanism 1 being actuated by the governor to release said link when the engine speed falls below a predetermined value to enable the governor to resume positive control of the liquid fuel for diesel operation. The governor 9 is connected by links 11, 14, 15, to the gas control valve 16 and by links 19, 21, 24 to the link 3 which is connected to the fuel pump control rod 4. For gas operation, a freely-pivoted lever 28 is operated manually to move the outer member of the link 3 down until a collar 2 thereon is engaged by the catch 1. The governor 9 then controls the gas valve only, the movements of the rod 24 being absorbed by the spring 25. If the engine speed drops below a predetermined value, a shoulder 26 trips the catch 1 to release the member 3 to permit the movements of the rod 24 to be transmitted to the control rod 4. The tripping of the catch 1 closes a.switch 30 to operate a visual and/or audible alarm.
Patent GB-1004493-A (GB)
Title: Method of manufacturing insulated electrical conductors and conductors manufactured according to the method
IPC: H02K3/34
Filed: 1962-07-04
Abstract: 1,004,493. Insulated electric conductors. ALLMANNA SVENSKA ELEKTRISKA A.B. July 4, 1962 [July 5, 1961], No. 25589/62. Heading H1A. To insulate a bundle of conductors 10, consisting of several separate conductors 11 insulated from each other by glass yarn 12, the bundle is wound alternately with layers of insulating material 13 and thermoplastic material 14 and heated under pressure to a temperature sufficient to slightly melt the thermoplastic material so that in subsequent working it adheres to adjacent layers of insulating material and forms a rigid casing around the conductors, and is then impregnated with a liquid thermosetting resin, e.g. an unsaturated polyester resin or epoxy resin. So that the bond between the layers may not loosen during impregnation the thermoplastic material must be insoluble or nearly so in the liquid impregnating resin. The resin in the impregnated insulation can then be cured without placing the insulated conductor in a mould, since the thermoplastic material is usually completely solid at the temperature required for curing. The insulating material is usually mica tape or mica sheet, the mica being attached to a material such as paper or glass fabric with a resinous binder. Other insulating materials may be used such as paper glass tape, glass fabric and tape or fabrics of other fibrous materials such as asbestos, cotton and silk. A number of materials suitable for the thermoplastic material in the form of thin thermoplastic foils can be used (see Specification), the one chosen in each case depends to a great extent on the impregnating resin to be used. A number of impregnating resins may be used (see Specification), and during vacuum pressure treatment the impregnating resin penetrates through the openings 16 left in the outer sealing tape 15 and fills up the pores and spaces in the insulation. The openings 16 are then sealed with sealing tape 15 and the winding is left in a furnace to cure the impregnating resin. The thermoplastic material need not be applied between each layer of insulating material but may be applied only between the outer layers of insulating material. It can also be applied with an interspace, or even in the form of thin loaves of suitable size. Further, the thermoplastic material may be arranged as a component of the insulating material, for example, it may be woven into the product in the form of fibre threads, or it may be arranged on one surface of the insulating material. U.S.A. Specifications 2,324,483 and 2,656,290 are referred to.
Patent GB-187124-A (GB)
Title: Improvements in and relating to casting reels for angling
IPC: A01K89/01
Filed: 1921-09-28
Abstract: 187,124. Illingworth, A. H. Sept. 28, 1921. Reels and winches, rod.-A ca;;ting-reeJ of the type set forth in Specifications 9388/05, 18723/10, and 17157/13, is provided with (1) a two-part linedrum D, (2) an improved drag-adjusting device G, (3) a ratchet device R between the spindle S and the drum D, and (4) dummy backings A for increasing the barrel diameter of the drum. A stationary ratchet-member R, R<1> is mounted on a shoulder S' of the non-revoluble spindle S. The bosses D<3>, D<4> of the parts D, D<1> of the line-drum are screwed together and mounted on the sleeve R<1>. Washers W are inserted between the recessed faces of the ratchet R and the drum part D'. A pawl R<2> mounted on the drum engages with the ratchet R. An externally-threaded boss G screws into the upper half of the drum to exert a varying pressure on the washers to regulate the drag. Indents in the drum face are engaged by a pointer G<2> integral with the boss G. A slit nut N secures the parts together and locks the sleeve R<1>. Building motion may be given by means of the usual cam C.
Patent GB-170471-A (GB)
Title: Improvements in or relating to baby carriages
IPC: B62B9/14
Filed: 1920-09-08
Abstract: 170,471. Craven, A. Sept. 8, 1920. Hoods.-A bassinet baby carriage, 'of the kind made with a reed body, is provided with a rigid non-folding hood a of l i k e material pivotally secured to top edges of the body and adapted when lowered to lie outside the body. Means such as screwed bolts and wing nuts are provided to hold the hood in any position; and the hood may have a slotted engagement with the pivots to allow of a slight rearward movement prior to the turning movement.
Patent GB-707667-A (GB)
Title: Magnetic recording and reproducing apparatus
IPC: G11B5/00
Filed: 1951-11-06
Abstract: 707,667. Valve amplifying circuits. PRODUITS PERFECTONE SOC. ANON. Nov. 6, 1951 [Nov. 8, 1950], No. 25989/51. Class 40 (6). [Also in Group XXXVIII] In a magnetic reproducing apparatus, a generally rising characteristic, and the attenuation at the cut-off frequency at the upper end of the response curve caused by the finite dimensions of the magnet gap, is compensated by (a) shunting the coil 4 of the transducer by a condenser 7 to form an oscillation circuit, tuned to the cut-off frequency, in the grid circuit of the first amplifier stage 5, and (b) providing a negative feedback network between anode and grid of said stage, comprising resistors 8, 9 and condensers 10 and 11, designed to produce a greater amount of negative feed-back at the higher frequencies except in the region of the cut-off frequency where difference in phase of the feedback produces a positive feedback.
Patent GB-1040317-A (GB)
Title: Improvements in or relating to recording and/or play-back apparatus employing tape-shaped record carriers
IPC: B65H19/28
Filed: 1963-07-01
Abstract: 1,040,317. Autothreading tape recorders; pause controls. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 1, 1963 [July 4, 1962], No. 26010/63. Heading G5R. To prevent a solenoid 24 from engaging a pinchroller 19 with a magnetic or other tape 10, until the ears 7 on the slotted-cheek take - up spool 2 have caught the mouse 12 on the leading end of the tape and fed it to the reel hub, a delay means holds off the solenoid 24. In Fig. 1, a tape-foil 33 bridges contacts 32 after sufficient tape advancement to energize the solenoid 24, which is then held by lock-in contents 31, a START means 21 for the take-up reel drive preparing the solenoid circuit through contacts 29. In Figs. 2 and 3 (not shown), a transparent leader tape and photo-electric sensing means act when the start of an opaque magnetic tape reaches the sensing point. In Fig. 4, the reel-drive is engaged by a solenoid 67, controlled from 68, which makes available a supply by the reel-ears 7 contacting contacts 66 to energize a suitably slow-tooperate solenoid 64 engaging the pinch roller. A pause control arrangement (Fig. 3, not shown), is arranged to apply brakes and release the pinch-roller solenoid only after the threading leader has passed the sensing point, and a flip-flop circuit, associated with the photo-electric circuit and the RECORD button ensures that recording can not be attempted on the leader, by halting the tape automatically some 10 cms. clear of it.
Patent GB-1179212-A (GB)
Title: Spatial Filters.
IPC: G02B27/46
Filed: 1968-05-31
Abstract: 1,179,212. Uses of photochromism. INTERNATIONAL BUSINESS MACHINES CORP. 31 May, 1968 [29 June, 1967], No. 26083/68. Heading C4S. [Also in Division G2] A method of manufacturing a spatial filter capable of producing a marker beam in its output when illuminated by a character beam comprises introducing the character into a beam of coherent radiation to produce a diffraction pattern which is recorded on a photochromic strip, and then introducing the marker, the character and the record of the diffraction pattern into the same or a substantially identical beam of radiation to produce an interference pattern and recording this pattern to produce the required filter. A point source 10 of light is collimated 12 to produce coherent parallel waves. These pass through a character plane 16 in which are mounted the character 24 and marker 26, in the form of transparencies, thence through a focusing lens 18 to an output plane 20 in which is located a photochromic strip 34, and behind that a strip 22 of photographic film. A shutter 30 is located between marker 26 and plane 20, and a shutter 32 between strips 34 and 22. As a first step shutters 30, 32 are closed and light is passed through character 24 only to provide a diffraction pattern recorded on photochromic strip 34. In a second step shutters 30, 32 are opened and photochromic strip 34 exposed to light from both character 24 and marker 26, and the film 22 to the resultant transmission of the doubly exposed strip 34 to record the interference pattern between character 24 and marker 26, and intiate exposure of character 24. The film 22 then becomes a halogram and forms the spatial filter such that on reconstituting by illuminating with a beam from the character an image of the marker will be produced.
Patent GB-719634-A (GB)
Title: Improvements in or relating to clamps
Inventor: SLADE KENNETH
IPC: B25B5/12
Filed: 1951-11-07
Abstract: 719,634. Clamps. SPEED TOOLS, Ltd. Nov. 7, 1952, [Nov. 7, 1951.] No. 26099/51. Class 61. A toggle operated clamp comprises a support 11 carrying a fixed jaw 15, an adjustable jaw 19 carried by a lever 20 which is pivoted at 21 to the support and an operating lever 26 pivoted to the support at 28 and connected with the pivoted jaw lever by a link 30. The support comprises a pair of vertical plates 12 flanged at 13 to form a base and having fixed therebetween a hardened steel jaw 16. The lever 20 comprises a pair of plates welded together at 23 and carrying a tubular member 24 internally threaded to receive an adjustable screw jaw 25. The operating lever comprises a pair of levers 26 which straddle the plates 12 and are jointed at one end to a handle 27. The link 30 is mounted between the levers 26 on a pivot pin 31 and is held centrally on the pin by two distance pieces which in the clamped position engage the front edge of the plates 20. The other end of the link 30 is mounted between the plates 20 on a pivot 34. In a modification the jaw lever comprises a single plate connected to the operating lever by a pair of links located one on each side of the single plate of the second jaw members. In another modification the handle is substantially horizontal in its operative position and engages-lugs on the upper edge of the plates of the support.
Patent GB-1144135-A (GB)
Title: Improvements in or relating to tape or card perforators
Inventor: HEMALA ZDENEK
Filed: 1966-06-13
Abstract: 1,144,135. Electromagnets. ZAVODY JANA SVERMY, NARODNI PODNIK. 13 June, 1966, No. 26233/66. Heading HIP. An operating magnet arrangement for a tape perforator comprises plural magnets 1 mounted in staggered pairs on a U-shaped yoke 3 of magnetic material; each having an end-pivoted and spring-loaded armature 2; the armatures of each row of magnets alternating with those of the opposite row (Fig. 2, not shown) and separated therefrom by guide pins 7 mounted on a central armature stop 6. The armatures are biased to disengage the magnet cores and have recesses 14 therein engageable with non-magnetic stops 13, of, e.g., brass or cemented tungsten carbide, mounted on bellcranks 16 loaded by springs 11, and having slots 12 engageable with combination levers 15 of a mechanical combination selector of the perforating device (not shown). On energization of a magnet its armature is attracted to engage stop 6, and to disengage stop 13 from recess 14, allowing bell-crank 16 to lock its combination lever 15 in slot 12.
Patent GB-1137452-A (GB)
Title: Improvements in or relating to steam power plants
IPC: F01K3/26
Filed: 1967-06-07
Abstract: 1,137,452. Steam turbine power plant. BABCOCK & WILCOX Ltd. June 7, 1967 [June 7, 1966; July 15, 1966], No.26237/67. Headings F1Q and F1T. In a steam power plant including a forced flow boiler having a first heat exchange section B and a second heat exchange section A in a higher temperature zone, a high pressure turbine 16 connected to receive fluid from the discharge side of the second section and a low-pressure turbine 18 interconnected to the high-pressure turbine in fluid flow relationship through a reheater means 17, the reheater means is connected to receive as heating medium fluid from the first section and to return the fluid to the second section. A heat exchanger 33 may be disposed below a liquid level of a de-aerator vessel 30, the heat exchanger being connected at one end to the feed water source 25 and at its offesed end to the steam space of the vessel so that the output of heating fluid to the reheater means can be raised. In a modification an expansion vessel is disposed in the flow path connecting the reheater means to the inlet side of the second section, the expansion vessel being connected in turn to a conduit arranged to convey steam from the high-pressure turbine to the reheater means.- A tubular heat exchanger may be disposed in the vessel below its liquid level, the heat exchanger being connected to the reheater means and the inlet side of the second section.