baber/WOPTO huggingface dataset:
Patent GB-1323623-A (GB)
Title: Method of and apparatus for press forming articles from powdered material
IPC: B22F5/08
Filed: 1971-04-19
Abstract: 1323623 Pressing helical gears CHRYSLER CORP 19 April 1971 [12 March 1970] 22631/71 Heading B5A Articles such as helical gears are pressed from metallic or plastics powder by an apparatus comprising a die 16 on a table 14, upper and lower punches 58, 60 which are helically grooved on their outer cylindrical surfaces to engage the correspondingly grooved inner surface of the die, and a cam drive means whereby the punches are rotated as they enter the die. The punches are attached to the ends of members 42, 44 each of which has an opposed pair of helical grooves providing cams engaged by pairs of cam followers 46, 48 on stationary supports 54, 56 secured to the die table. The members are attached to rotary plates 30, 32 carried by rams 22, 24. Vertical movement of the rams produces rotary movement of the members 42, 44 and their punches which corresponds to that required to cause the punches to engage the die grooves. A central hole is formed in the punched article by a rotably mounted core rod 72 which extends into a central bore of the upper punch. The lower punch also ejects the article which then may be sintered.
Patent GB-466241-A (GB)
Title: Improvements in or relating to navigation aiding radio receiving apparatus
IPC: G01S1/02
Filed: 1936-08-17
Abstract: 466,241. Automatic volume control. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Aug. 17, 1936, No. 22661. Convention date, Aug. 16, 1935. [Class 10 (iv)1 [Also in Group XL] In a radio course-indicating system of the overlapping-beam type, the instruments used to indicate the relative signal-strengths are given such inertia as not to respond to transient variations due to interference effects. They maybe made mechanically sluggish, the thermal inertia of hot-wire indicators may be utilized, or the desired inertia may be introduced by using thermal rectifiers of the bolometer type in which the effective resistance depends upon the current passed. As shown in Fig. 6 the signal corresponding to one of the modulation tones f is rectified by a bolometer B01 arranged in a Wheatstone bridge feeding the indicator J. By varying the resistance W4, and therefore the direct current iv passing through the bolometer from the battery B, the sensitivity of BO1 is controlled so as to give a constant response ib in the indicator J for increasing strengths of signal current i#, as indicated in Fig. 7. Instead of the resistance W4, a diode valve can be used, Fig. 9 (not shown), to apply a varying grid-bias to a triode valve, the output from which is similarly used to control the sensitivity of response as the aeroplane approaches the radio beacons.
Patent GB-512192-A (GB)
Title: A new or improved inspection cover for aircraft wings, flotation bodies or other aerodynamical surfaces
IPC: B64C1/14
Filed: 1938-07-30
Abstract: 512,192. Inspection covers. SHORT BROS. (ROCHESTER & BEDFORD), Ltd., and HART, S. G, July 30, 1938, No. 22753. [Class 107] An inspection cover for aircraft wings or other aerodynamical surfaces comprises a cover proper b, which is flush with the aerodynamical surface a<1> and has a ring b<1> to depress a resilient scaling ring d' secured by a plate d' on a seating c<4> which is formed on or attached to the surface a'. The cover may be secured by known cowling clips f, and is attached to the cover seating by a cord g to prevent loss. The cover may be of oval form.
Patent GB-1024493-A (GB)
Title: Triaryl-methane dyestuffs
IPC: C09B11/12
Filed: 1964-06-02
Abstract: The invention comprises dyes of the formula <FORM:1024493/C4-C5/1> wherein X- is OH-, Br-, Cl-, H2PO4- or ACOO-, where A is hydrogen or alkyl of 1 to 17 carbon atoms and the radicals R each represent a methyl or ethyl radical.  The dyes are made by (a) condensing tetraalkyl-p-diaminobenzhydrol in which the alkyl radicals are methyl or ethyl with 1-N-methyl or -ethyl-N-benzylamino-3-methyl- or -3-ethylvenzene and oxidizing the resulting leuco compound; (b) condensing N : N-dimethylaniline or N : N-diethylaniline with 4-N-methyl- or 4-N-ethyl-N-benzylamino-o-tolylaldehyde or -o-ethyl-benzaldehyde and oxidizing the leuco compound; or (c) condensing 4 : 41-tetramethyl- or 4 : 41-tetraethyl -diaminobenzophenone with 1-N-methyl- or 1-N-ethyl-N-benzylamino-3-methyl- or -3-ethyl-benzene in the presence of phosphorus oxychloride or oxybromide.  The dyes may be precipitated on to aluminium oxide to form pigments.ALSO:Dye compositions disclosed in the examples include (4) ethyl cellulose, a condensate of chlorophenol, salicyclic acid and HCHO, ethylene glycol, ethanol and a dye of formula <FORM:1024493/C3/1> in which X = C1, and (5) a condensate of xylene-formaldehyde resin and tert-butylphenyl, benzyl alcohol, hexane triol and the above dye.
Patent GB-1267450-A (GB)
Title: Improvements in or relating to pneumatic conveyer means, particularly for powder-spraying apparatus
IPC: B05B7/14
Filed: 1969-05-05
Abstract: 1,267,450. Pneumatic conveyers. GEMA A.G. APPARATEBAU. 5 May, 1969 [6 May, 1968], No. 22787/69. Addition to 1,165,225. Heading B8A. The pneumatic conveying apparatus of the parent Specification is modified in that the distribution chamber at the base of the hopper is provided with a plurality of diffusers 17, each diffuser being connected to a separate conveyer pipe 1. The inlet 7a for additional gas on each diffuser is inclined with respect to the axis of the distribution chamber at an acute angle, Fig. 1 (not shown).
Patent GB-1425166-A (GB)
Title: Method of producing hot pressed components
IPC: C04B33/32
Filed: 1972-05-16
Abstract: 1425166 Moulding powder dies LUCAS INDUSTRIES Ltd 2 May 1973 [16 May 1972] 22811/72 Heading B5A [Also in Division C7] A method of making a die part comprises mixing boron nitride powder with a refractory, non- sinterable powder other than boron nitride and an organic carrier liquid to produce a slurry, causing the slurry to flow into the shape of the die part and removing the liquid from the slurry to form a powder compact having the shape of the die part. The die part is used in the hot pressing of a component and preferably has the same compression ratio as the component, e.g. 2. The die part(s) may be cast about the preform of the component. The latter may be of silicon nitride and the refractory powder may be silicon carbide, magnesium oxide or aluminium oxide. If silicon carbide is used, aluminium oxide may be provided as a barrier layer to prevent reaction between silicon carbide and the silicon nitride component. The carrier liquid may be iso-propyl alcohol, acetone, ethyl alcohol or butyl alcohol and may be removed using heat. The particle size of the slurry powders may be not less than 50 microns. The die parts and component preform may be hot pressed at 1700 C. under a pressure of 1À5 tons/sq. inch. The slurry which does not undergo significant shrinkage upon liquid removal may have a 64- 72% solid content of which boron nitride comprises 36-51%.
Patent GB-317225-A (GB)
Title: Improvements in or relating to the treatment of synthetic resins, and particularly of coatings thereof
IPC: C09D167/00
Filed: 1928-08-08
Abstract: 317,225. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 8, 1928. Ester condensation products. - The sensitiveness to water of soluble resins obtained from polyhydric alcohols and polybasic acids, and the temperature of hardening the said resins, are reduced by treatment with acids possessing a stronger acidity than the acid components of the resins, or with the anhydrides of such acids, or with volatile bases such as ammonia, the acid or basic reagents being employed in the vaporous or gaseous state. Suitable acid reagents comprise sulphur dioxide, hydrochloric, hydrofluoric, formic, and acetic acids, singly or admixed, and with or without gaseous diluents, e.g. nitrogen, carbon dioxide, or air. The, temperature used should not exceed 200‹ C. The initial resins may be prepared from glycerol, sorbitol, glycol, erythritol or pentaerythritol, or from hydroxyalkyl ethers of polyhydric alcohols or their derivatives containing at least two free hydroxy groups, prepared, for example, as described in Specification 317,770. The polybasic acids include phthalic, acid, succinic acid, maleic acid, and adipic acid. Mixtures of polyhydric alcohols and mixtures of aromatic and aliphatic polybasic acids mav also be used. Other additions may also be made, such as phenol formaldehyde resins, substances which are resinified in the course of the process, e.g. cumarone or indene, resins which are not affected by the process, e.g. colophony, ester gum or copals, and/or plastifiers, or cellulose esters cr ethers.
Patent GB-712765-A (GB)
Title: Improvements in explosive mixtures
IPC: C06B31/06
Filed: 1951-10-02
Abstract: 712,765. Blackpowder. BOWDEN, F. P., and BLACKWOOD, J. D. Oct. 1, 1952 [Oct. 2, 1951], No. 22964/51. Class 9(2) The charcoal used in gunpowder or blackpowder mixtures, which also contain a nitrate, e.g. potassium nitrate, with or without sulphur, is treated before admixture to ensure the presence of a predetermined proportion in relation to the elemental carbon present, of the organic compounds, such as acids, aldehydes, ketones, phenols, alcohols, amino compounds, and hydrocarbons, contained therein. The organic compounds may be removed from the charcoal, e.g. by extraction with acetone, and all or some of them reintroduced in controlled amounts. Alternatively, charcoal may be tested to determine the proportions of organic compounds therein and some or all of these may be added if they are insufficient, or some or all may be extracted and some reintroduced in the desired proportions.
Patent GB-1417952-A (GB)
Title: Pasty dry cream product and process for its manufacture
IPC: A23L19/00
Filed: 1974-05-22
Abstract: 1417952 Dry cream product C P C INTERNATIONAL INC 22 May 1974 [23 May 1973] 22983/74 Heading A2B [Also in Division C5] A dry cream product comprises a mixture of one or more fat powders selected from butter powder and powders of fats having a melting point within the melting range of butter-fat, at least one of butter-fat, an animal or vegetable fat, starch, and sodium caseinate and/or dried skim milk. Vegetable binders such as agar-agar, alginate, carrageenate, guar flour, carob bean flour, pectin or gelatin may be present. Minor amounts of surface-active substances or emulsifiers such as lecithin and/ or monoglycerides and diglycerides of naturally occurring fatty acids occurring in fats and oils, and flavourings (e.g. NaCl, sugar, spices and aromatic substances) may also be added.
Patent GB-865931-A (GB)
Title: Improvements in or relating to devices for cutting and trimming booklets, stacks of paper and the like
IPC: B26D1/08
Filed: 1959-07-03
Abstract: 865,931. Cutting-apparatus. GOWING, A. I., and GOWING, G. S. F., [trading as WILL, E. C. H. [Firm of]]. July 3, 1959 [July 18, 1958], No. 22989/59. Class 31 (1).  Apparatus for continuously cutting and trimming booklets, stacks of paper and the like comprises a separating station 7 where a cutter 4 cuts a booklet 1 having a stapled edge 2 into two parts 5, 6, a spacing station 8 where two mechanically-driven slides 10, 11 move the parts 5, 6 equally in opposite directions to engage fixed stop-faces 12, 13, and a side cutting station 16 where cutters 14, 15 trim the edges of the parts 5, 6. At the cutting station 16, adjustable abutment flanges 17, 18 are provided with guide-in surfaces 19, 20. A separating part 9 is provided between the separating and spacing stations. The slides 10, 11 are pin-and-slot connected to rotatably-mounted levers 23, 26, Fig. 2, the lever 23 being driven from a reciprocating shaft 21 through a lever 22 and driving the lever 26 by means of a link 25. The levers 23, 26 are connected together by means of a return-spring 29. The stroke of the slides 10, 11 is adjustable.
Patent GB-639479-A (GB)
Title: Improvements in or relating to implements for mending ladders in knitted fabrics
IPC: D04B17/04
Filed: 1947-08-19
Abstract: 639,479. Sewing JOHO, O., and JOHO, H. Aug. 19, 1947, No. 22996. Convention date, Jan. 13, 1941. [Class 112] A relooping needle comprises a hollow shank 1 with a hook 2, and a spring-biassed cam adapted to close the hook and formed with a recess to receive the point of the hook when closed, the cam being formed on a slide member 5 guided in the hollow shank and a depression being formed in the slide member behind the cam to receive the thread temporarily before it is thrown off. In the form shown, the cam is formed by a pair of projections 10 near the end of the slide 5 which is cylindrical and which works in the hollow cylindrical shank 1 and between wings 3 at the end thereof, the point of the hook entering between the projections 10 when closed. The slide 5 is normally retracted by a spring 6 attached to a handle 4, and is prevented from rotating by a pin 7 engaging a slot in a web 9 of the handle 4. A spring-biassed sleeve, with limited movement, may be arranged on the shank to limit penetration of the fabric being repaired. The Specification as open to inspection under Sect. 91, states that the shank and the slide, or either of them, may be of angular or other non-circular cross-section, and relative angular movement may be prevented, and longitudinal movement limited, by a wing or wings on the slide engaging a slot or slots in the shank. A cylindrical handle may replace the lateral one, and a compression spring the tension spring shown. It also includes the subject-matter of Specification 639,480. This subject-matter does not appear in the Specification as accepted.
Patent GB-643878-A (GB)
Title: Improvements in or relating to boxes or like shipping containers
IPC: B65D5/36
Filed: 1947-08-20
Abstract: 643,878. Boxes. BELSINGER. Inc. Aug. 20, 1947, No. 23043. Convention date, Jan. 29, 1942. [Class 18] A shipping box formed from foldable blanks is contructed with two identical tray-like top and bottom portions 10, 11, telescopically arranged and a lining portion 12 of rectangular cross-section open at both ends. The top portion 10 has a closing wall 13 and side and end walls 14-17 foldably joined thereto. Flanges 14a, 15a are foldably connected to the sides 14, 15 and secured to the end 16 by staples 18, the opposite end 17 and those of the bottom portion being connected in the same way. Diagonal folds as at 28 are made from the free edge of a side wall to the trihedral angle at a corner, thus permitting the sides and ends to fold onto the wall 13 to form a substantially flat package. The lining 12 is formed by four walls 25, 25a, 26, 26a folding along their joining edges, and of a depth equal to the combined depths of the top and bottom portions. The top and bottom portions are secured together by a length of tape 30. Additional folds may be made in the end walls of the lining to reduce its folded length to that of the top and bottom portions when the box is dismantled. Reference has been directed by the Comptroller to Specification 17589/14, [Class 18].
Patent GB-325232-A (GB)
Title: Improvements in or relating to high frequency electric signailing systems
IPC: H03D11/02
Filed: 1928-08-10
Abstract: 325,232. Robinson, J. Aug. 10, 1928. Drawings to Specification. Sound, actuating apparatus by. - In a wave transmission system, described with reference to electric waves, acoustic waves of audio or higher frequencies may be employed. The receiver comprises oscillating apparatus that is stable but has less damping than is usual for true reproduction provided with means for subduing the oscillations that tend to persist, preferably by effecting a phase change or reversal of the waves in the receiver. The invention is applicable whether amplitude or frequency modulation is employed for signalling.
Patent GB-1093605-A (GB)
Title: Transducer head and transducer apparatus incorporating such a head
IPC: G11B5/265
Filed: 1966-05-24
Abstract: 1,093,605. Recording and reproducing apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 24, 1966 [June 30, 1965], No. 23101/66. Heading G5R. A transducer head 10 comprises a magnetic core structure having a transducing gap 16 and a mechanical recording and reproducing means comprising two spaced polepieces 20, 21 between which projects a permanently magnetized thin reed 25 carrying a recording and reproducing stylus 27. The head 10 is rotatable about an axis 35 so that either the gap 16 or the stylus 27 can be brought into operative relation with a dictating belt 17. Alternatively, as shown in Fig. 7 the recording gap 123 and stylus 128 simultaneously effect recording on the belt 121. The magnetic or the mechanical recording method may be replaced by an optical recording method.
Patent GB-808947-A (GB)
Title: Improvements in or relating to optical scanning devices
Inventor: KIMBER RAYMOND ARTHUR
IPC: H04N3/04
Filed: 1957-07-22
Abstract: 808,947. Optical pointers. MULLARD RADIO VALVE CO. Ltd. July 22, 1957, No. 23107/57. Addition to 782,142 [Group XL(b)]. Class 97(1) The apparatus of the parent Specification is modified in that the first circular toothed member is held against rotation. Thus, as shown in Fig. 1, the apparatus may comprise a first circular toothed member 1 mounted in a stationary manner and a second circular toothed member 2 pivoted at 3 on a carrier 4 which is pivoted on the axis 6 of the member 1 and carries rotatably an idler gear 8. Member 2 carries the scanning element 10 (e.g. a cylindrical lens) and, when carrier 4 rotates about axis 6, the axis 3 of member 2 follows the path P. At the same time the element 10 is maintained vertical so that a line of light traverses area 12. Instead of carrier 4 and idler gear 8, the members 1 and 2 may be coupled together by a chain. The apparatus of the parent Specification may be further modified in that the members 1 and 2 may be formed as twin cranks coupled together by connecting rods (Fig. 3, not shown). As shown in Fig. 5, two scanning elements 10, 10A may be provided, each mounted in a hollow shaft 40, 40A rotatably carrying toothed members 2, 2A coupled by idler gears to the fixed gear 1. Masking windows 42, 42A in a member 41 define the rectangular area to be crossed by the line of light from each element 10, 10A and further masks are provided in each hollow shaft to complete the masking action. Specification 773,494 [Group XL(b)] is referred to.
Patent GB-1184456-A (GB)
Title: Improved System of Building Construction and Precast Blocks for the same
Inventor: BELLAMY LIONEL
IPC: E04H7/28
Filed: 1967-05-18
Abstract: 1,184,456. Silos. L. BELLAMY. 8 July, 1968 [18 May, 1967], No. 23169/67. Heading E1T. [Also in Division F4] A conical base for a grain silo, sludge pit or water tank is composed of blocks 1, 2, 3 which have the overall shape shown and are provided with interlocking surfaces such as 12, 13, passageways 10 between the plane sides 7, 8 thereof and openings 11 in the top giving access to the passageways 10 for the introduction of concrete or passage of air for grain drying purposes. The blocks are made of concrete and provided with grooves 15 for the location of positioning or reinforcing bonds 14, 16.
Patent GB-1371849-A (GB)
Title: System for cooling material using co2 snow
IPC: F25D3/11
Filed: 1972-05-17
Abstract: 1371849 Conveyer systems L TYREE JNR 17 May 1972 23197/72 Heading F4H [Also in Division B2] A refrigeration system for cooling material using CO 2  as a refrigerant, comprises an enclosure 11 through which the material 13 passes on a conveyer 15, snow nozzles 17 having orifices through which high pressure CO 2  is expanded, and a device 65 for sensing the temperature within the enclosure 11 in order to change the pressure of the CO 2  being supplied in response to the temperature sensed, said change in pressure changing the effective size of the orifices. A line 29 connects the liquid phase of the storage vessel 25 to a suitable pump 31 which provides the necessary head for pumping high pressure liquid CO 2  throughout the cooling system. The high pressure liquid leaving the pump 31 flows to a tee member 33; one leg directing the liquid to an expansion valve 35 and separation tank 37 and finally to a compressor and the storage tank 25; the other leg passing the liquid either to a heat exchanger 51 or through a heat exchanger 23 located to collect snow from the nozzles. Each of the nozzles 17 are designed to open only when a certain minimum pressure differential is achieved between the liquid being fed to the nozzles and the enclosure. In operation, if the temperature drops below the desired level, the effective size of the orifices in the show nozzles 17 is decreased in order to reduce the amount of snow which is created. On the other hand, if the vapour temperature within the enclosure 11 rises above the desired value, the orifice size is increased in order to provide more snow.
Patent GB-1241891-A (GB)
Title: Organic peroxy compounds
IPC: C08C19/38
Filed: 1969-05-07
Abstract: 1,241,891. Peroxy-cellulose compounds; polymerization; peroxy polymers. PENNWALT CORP. 7 May, 1969 [7 May, 1968], No. 23258/69. Headings C3A, C3G, C3P and C3R. [Also in Division C2] Peroxides of the general formula X n -R p -Y m  are used as initiators in free radical polymerizations, wherein X is where B is Br or Cl; R is a di-, tri- or tetravalent aliphatic, cycloaliphatic or aromatic radical and Y is a radical containing a peroxy group. Amongst the examples pre-formed polymers are treated with the peroxides to introduce peroxide groups into the chains and these are then polymerized with an ethylenic monomer to give a block copolymer, e.g. cellulose is reacted with 2-(t-butylperoxycarbonyl)-ethyl chloroformate and polymerized with styrene, a mono-hydroxylterminated polyether is reacted with bis-[4- (chloroformyl)butyryl] peroxide and polymerized with polystyrene, a hydroxyl-terminated polybutadiene is reacted with bis-(4-chloroformyl butyryl) peroxide and polymerized with styrene and a polyester is prepared by polymerizing 1,4-butanediol, succinoyl dichloride and t - butyl - 2,4 - dichloroformyl - 5 - peroxybenzoate.
Patent GB-399456-A (GB)
Title: Improvements in and relating to lamp failure indicators for use on vehicles
IPC: B60Q11/00
Filed: 1932-04-22
Abstract: 399,456. Lamp-failure alarms. SENSIBA, F. H., 916, Crystal Avenue, and SENSIBA, C. W., 500, Crystal Avenue, Crystal Falls, Michigan, U.S.A. April 22, 1932, No. 23290/33. Divided on 399,246. [Class 118 (ii).] The alarm lamps of a motor-car lampfailure alarm are mounted in a compartmented casing carried on the steering column of the car. The casing is provided with sight openings 9 on one side and has a hinged back 10 on which the alarm lamps 13 are mounted. When the cover is closed the lamps make contact with spring contacts 16 mounted on an insulating plate 15 which is fitted within the box. The lamps are controlled by relays connected in circuit with the front and rear lamps of a vehicle, the control system being described in Specification 399,246.
Patent GB-586701-A (GB)
Title: Improvements in cylinder locks
IPC: E05B29/00
Filed: 1944-11-24
Abstract: 586,701. Revolving-barrel locks. BOHAM, J. F. Nov. 24, 1944, No. 23405. [Class 44] In a revolving barrel lock of the kind having transversely slidable plate tumblers 4, without biasing springs, operable by an undulated key, the tumblers are assembled in a mounting member 5 with a recess 7 which slidably receives laterally projecting portions 6 of the tumblers, the parts 4, 5 being then inserted in a transverse slot 3 in the barrel. The key has a straight back edge portion 11 slidably guided in a straight slot 10 in member 5, and an undulated portion 12 received in slots 13 formed in the tumblers, the edges of the slots 13 and of the pointed key nose being rounded, Fig. 3, to facilitate insertion of the key. The part 16 of the key is received in the end slot 17 of the barrel, which also has a part 18 by which latch or other mechanism is operated in known manner by rotation of the barrel. The fixed casing 2 may have two pairs of recesses 9 to receive the ends of the tumbler in locking position, so that the barrel may be locked in two positions 180 degrees, or other desired angle, apart. Withdrawal of the key " scatters " the tumblers to locking positions.