baber/WOPTO huggingface dataset:
Patent GB-622998-A (GB)
Title: Improvements in or relating to photographic film cameras
IPC: G03B19/04
Filed: 1945-05-25
Abstract: 622,998. Photographic cameras. LLOYD, B., and COLLYER, J. F. May 25, 1945, Nos. 13193 and 23298. [Class 98 (i)] The camera comprises a film exposure gate consisting of an apertured front plate movable towards and away from a back plate for loading purposes, a lens supporting tube opposite the gate and a flexible light - excluding connection between the front gate member and the lens tube. A band bearing exposure numbers visible through a window in the camera body may be coupled to the film spools so that it moves in synchronism with the film. As shown, a camera having a removable bottom 14 is divided into two chambers by a partition 15: the upper containing an exposure-indicating tape 47 coiled at its ends on the driving spindles of the film spools and bearing exposure numbers appearing in a window in the body; and the lower containing the film spools and gate. A tube 20 which is secured to the front wall 10 and carries the objective and shutter is mounted opposite a block 22 which is carried on the back wall 11 and may be made of laminated artificial resin-impregnated material recessed at 23 to form a film guide, said block acting as a seating for the apertured front plate 24 which is spring-urged towards it and connected by a bellows 27 to the tube 20. The front plate 24 is carried by two cranked levers 32 which are pivoted at their upper ends on the side members 31 of a frame 30, 31 surrounding the lens tube and have pin-and-slot connections 35, 36 with the plate 24. The levers 32 are connected at their lower ends by a crossbar 33 having a central finger-piece 34 engaged by a spring 29 bearing on the front plate of the camera. Two arms 37 pivoted on the frame 31 are so shaped that their cylindrical end pieces rotatably support the film spools 40 when the gate is closed and are provided with lugs on their inner ends which. engage in slots 39 in the cross-bar 33 to hold the gate open when the arms are swung out parallel to the film spool axes. A view-finder 55 is disposed on top of the camera between film winding knobs 42 of which the take-up knob may be larger than the pay-out knob. The camera mechanism is carried by the top cover 13 which is removably secured to the body by screw rods 50 and nuts 51.
Patent GB-520815-A (GB)
Title: Improvements in air and oil supply fittings for furnaces and the like
IPC: F23D11/00
Filed: 1939-05-03
Abstract: 520,815. Liquid fuel and air supply fittings. DOAN, J. A. May 3, 1939, No. 13230. [Class 51 (i)] In a furnace burning solid fuel, the firedoor is provided with air and oil supply fittings movable with the firedoor to supply air and oil to the furnace for consuming smoke. The door 10 has an air inlet header 12, Figs. 1 and 3, having a swivel connection 16 with a pipe 17 through which air is supplied by a fan 19 driven by a motor 20 mounted on a tubular supporting member 24 carried by a bracket 26 pivoted at 27 to the furnace wall. The air supplied by the fan enters through a manually operated shutter 23 which controls the supply. The air is heated by an electric unit 35 and the heated air also serves to heat oil supplied from a tank 29 through a flexible pipe 31 and a pipe 30 passing through the air conduit to a perforated spraying nozzle 33 by which it is delivered over the fuel in the fire-pot C.
Patent GB-462819-A (GB)
Title: Improvements in tubular electric lamps
IPC: H01K1/28
Filed: 1936-06-03
Abstract: 462,819. Electric incandescent lamp bulbs. ARCHITECTURAL LIGHTING, Ltd., and MACWATT, S. L. June 3, 1936, No. 13231. [Class 39 (ii)] Tubular electric incandescent lamps are provided with an end or ends formed with spiral ribs or flutings. In one form the lamp has a plain tubular body 1, Fig. 1, and two tulip-shaped ends 2 pro-' vided with spiral ribs or flutings. Nipples 3 are provided to connect the lamp to a source of current. The spiral flutings may be extended throughout the length of the body 1. In a modification, only one end of the lamp is of the shape shown, the other end being provided with a bayonet cap as in ordinary candle lamps. Fig. 4 shows a candle lamp with the upper end 6 tapered and formed with spiral flutings 7, the tubular body of the lamp being formed with flutings 5 running in the opposite direction to the flutings 7. Alternatively, the tubular body may be plain, or the flutings 7 continued throughout its length. The lamp may be coloured in one or a number of colours.
Patent GB-1219783-A (GB)
Title: Stabilised polyolefine compositions
Inventor: MASCIA LIBERATO
IPC: C08K5/00
Filed: 1968-03-19
Abstract: 1,219,783. Polyolefin compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 March, 1969 [19 March, 1968], No. 13234/68. Heading C3P. A polyolefinic composition containing asbestos, talc or non-metallic fillers such as silica or carbon black including metal ions as an impurity, are stabilized by incorporating into the composition a metal complexing agent. The polyolefinic composition comprises 5-50% by weight of the metal ion-containing filler and a metal complexing agent which is a compound comprising molecules, each of which includes at least two atoms selected from nitrogen, oxygen and sulphur, such atoms being separated by from one to three carbon atoms, exemplified by melamine or pentaerythritol in the form of a powder of - 20 Á diameter, or N-salicylidene-N- salicyl - hydrazide, para - acetamide aniline, oxanilide, oxamide and benzothiazole. The metal complexing agent amounts to 0À5-5% by weight of the polyolefin. Polyolefines specified are propylene polymers, high density ethylene polymers and propylene-ethylene copolymers. The compositions may also include specified conventional thermal and oxidative degradation stabilizers and a lubricant such as calcium or zinc stearate.
Patent GB-1501202-A (GB)
Title: Polymerizable compositions containing unsaturated polyester resins and aqueous sodium silicate method of preparing shaped articles from such compositions and thermoset products thereof
IPC: C08K3/34
Filed: 1975-04-01
Abstract: 1501202 Coatings H H ROBERTSON CO 1 April 1975 [12 April 1974 29 Jan 1975] 13264/75 Heading B2E [Also in Division C3] Substrates are coated with a polymerisable composition comprising the alkaline reaction product of a) one part by weight of unsaturated polyester resin syrup, i.e. a mixture of unsaturated polyester and an ethylenically unsaturated monomer, and b) 0.3-10 parts by weight of an aqueous sodium silicate having 45-85 parts by weight of water and 55-15 parts by weight of sodium silicate solids having a weight ratio of SiO 2 /Na 2 O of 1.5 to 3.75, said composition including a polymerisation initiator for the unsaturated polyester resin syrup which is subsequently cured. The composition may also contain fillers such as alumina, perlite, expanded vermiculite, ground glass, glass microspheres, silica, magnesium oxide, mullite, fly ash, zirconia, clay, attapulgite, titanium dioxide, antimony oxide, pigments, and fibrous reinforcing material such as glass fibres, asbestos fibres and mineral wool. Components a) and b) may both be provided as sprays which are impinged to produce an alkaline mixture prior to coating the substrate Suitable substrates are steel sheets which may be galvanised, glass fibre reinforced polyester resin panels, a dry wall, wood, an acrylic resin sheet, paper, concrete, expanded metal lath, cotton cloth, polyester fibre cloth, leather, rubber, polyurethane and glass. A preferred polyester resin syrup used comprises a mixture of styrene and an unsaturated polyester formed from phthalic anhydride, maleic anhydride and propylene glycol, and contains alumina or glass fibres as a filler. In Example 9 as expanded metal lath having a cured coating obtained from the polymerisable composition on both sides is obtained by coating the compositions onto a sheet of regenerated cellulose, a sheet of expanded metal lath is deposited thereon, a further coating is applied thereto, and this top coating is covered with another sheet of regenerated cellulose and the formed panel allowed to cure.
Patent GB-1033534-A (GB)
Title: Self-aligning travelling crane
Inventor: DEHN ROY FREDERICK
IPC: B66C9/16
Filed: 1963-04-03
Abstract: 1,033,534. Aligning travelling cranes on rails. CLEVELAND CRANE & ENGINEERING CO. April 3, 1963, No. 13271/63. Heading B8B. [Also in Division B7] The wheels 14, 16, Fig. 2, of a travelling crane are driven by series wound electric motors 22, 23 connected in series through pinions and gears 25, 26, and have flanges 29 which abut the rails when one side of the crane moves ahead of the other side thereby slowing down that side until the lagging side catches up. Alternatively, the wheels 46, 47, Fig. 3, may be driven by a single motor 42 through a differential 40. The wheels may have flanges 62, 64, Fig. 5, on both sides in either embodiment and the sum of the distances X must be less than the sum of the distances Y.
Patent GB-1096837-A (GB)
Title: Logical circuit arrangements
IPC: H03K3/26
Filed: 1966-03-25
Abstract: 1,096,837. Selective signalling. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. March 25, 1966 [March 30, 1965], No. 13289/66. Heading G4H. A logic circuit comprising five NAND gates interconnected as shown in Fig. 1 has the properties (1) that if ones are maintained on four control inputs p, q, r and s the output signal y remains constant even though the input signal x varies, and (2) that if the input signal x remains constant, if ones are maintained on r and 8, and if the signals on p and q are changed from (1,1) to (0, 0), then to (0, 1) and finally back to (1, 1), then whatever the initial value y, its final value at the end of the sequence of changes applied to p, q will be the same as the value of x present during the sequence. According to the Specification these properties constitute storage and transfer. Also according to the Specification the circuit shown has 18 stable conditions which are tabulated (Fig. 2, not shown).
Patent GB-770452-A (GB)
Title: Testing apparatus for hydraulic systems
Inventor: PERRY REGINALD JOSIAH
IPC: F15B19/00
Filed: 1954-08-06
Abstract: 770,452. Apparatus for testing hydraulic systems. HAMILTON MOTORS (LONDON), Ltd. Nov. 2, 1955 [Aug. 6, 1954], No. 13313/54. Class 69 (2). Apparatus for testing aircraft hydraulic operating and control systyms comprises displacement type pumps C ... C<SP>3</SP> delivering through lines E ... E<SP>3</SP> and non-return valves E<SP>5</SP> to a delivery line E4. By-pass valves F ... F<SP>2</SP> enable pumps C ... C<SP>2</SP> to be selectively bypassed, and a valve F<SP>3</SP> enables all the pumps to be by-passed. The line E<SP>4</SP> terminates in a coupling by which it may be connected to the hydraulic system to be tested, and the pressure in the line is maintained constant by a valve K at a value determined by an adjustable setting device K<SP>1</SP>. A metering valve J, the pressure drop across which is maintained constant, is disposed in a by-pass between the delivery line E<SP>4</SP> and an exhaust line G, and, in conjunction with the valves F ... F<SP>2</SP> enables any rate of flow between zero and the combined output of all the pumps to be obtained. The exhaust side of the system under test may be connected to a reservoir D or directly to an inlet line D<SP>1</SP> of the pumps. The valves F ... F<SP>3</SP> incorporate safety valves, and a cooling device N may be provided.
Patent GB-590787-A (GB)
Title: Improvements in and relating to alternating current electric ship propulsion systems
IPC: H02P9/00
Filed: 1944-07-12
Abstract: 590,787. Transmitting mechanical power. GENERAL ELECTRIC CO., Ltd., and ELLIS, G. July 12, 1944, No. 13319. [Class 38 (iv)] In an A.C. ship propulsion system of the kind in which during starting or reversal the excitation of the generator 2 supplying a propeller motor 3 is temporarily increased, the generator field 10 is normally excited from a supply 7 in series with a portion 5 of the motor field, but when increased excitation is required, the generator field is connected directly across the source 7. A switch 8 which effects the change of connections may also connect a discharge resistance 11 across motor field 5 when the latter is not in series with the generator field. Alternatively, the field 5 may be open-circuited when the generator field is being directly excited. The remainder 6 of the motor field may be excited to pull the motor into synchronism, prior to or at the same time as excitation is applied to winding 5. A discharge resistor 12 may be connected across winding 6 during the time of non - excitation of this winding.
Patent GB-557029-A (GB)
Title: Improvements in apparatus for and method of treating electrolytic coatings
IPC: C25D5/50
Filed: 1942-09-24
Abstract: 557,029. Coated steel strip. CARNEGIEILLINOIS STEEL CORPORATION. Sept. 24, 1942, No. 13456. Convention date, June 22, 1942. [Class 41] An electrolytic coating, especially a tin coating formed on steel strip is brightened and bonded to the base metal by electrical resistance heating of the coated strip carried out during its passage through a chamber which is heated to provide an isothermal shield around the strip to prevent loss of heat therefrom, but to a temperature below that of the melting point of the coating. The strip, after passing over a power-driven roll 12, leaves chamber 7 through a gasketed orifice 8 and ascends a passageway 3 in a chamber 2, heated by spaced heating elements 5, leaving the chamber, after passing over an insulated roll 13, by a second passageway and entering a quenching vessel 9, containing oil and provided with a second power-driven roll, through a conduit 10. Heat losses from chamber 2 are prevented by insulation 6. The resistance heating of the strip is effected by current applied by brushes to the rolls 12 and is so regulated that the strip is heated to the melting point of the coating only immediately before the quenching operation.
Patent GB-134961-A (GB)
IPC: B60B17/00
Abstract: 134,961. Staunton, P. M. Nov. 21, 1918. Disk wheels; spring wheels with continuous outer rigid ring and metal springs other than helical and volute springs.-Disk wheels comprise a rim a and hub b connected by disks concentrically corrugated at c, Fig. 5, the corrugations having radial slots F, Fig. 2, therein, and being preferably arranged further apart at the rim than at the hub.
Patent GB-545553-A (GB)
Title: Improvements in or relating to the manufacture of unsaturated compounds
IPC: C07C17/26
Filed: 1940-08-28
Abstract: 545,553. Allyl halide condensation products. DU PONT DE NEMOURS & CO., E. I. Aug. 28, 1940, No. 13568. Convention date, Aug. 29, 1939. [Class 2 (iii)] Highly unsaturated compounds, capable of polymerization, are prepared by reacting the amide of an alkali or alkaline earth metal with an allyl halide or substitution product of the formula R<SP>1</SP>-CH =CR-CH 2 X, where X is halogen, R represents hydrogen, halogen or alkyl, R<SP>1</SP> stands for hydrogen, halogen, alkyl, aryl or carboxylic ester radicles, and wherein both R and R<SP>1</SP>, when they represent alkyl or aryl, may be halogen substituted. The reaction is effected in the presence of liquid ammonia to which inert organic solvents may be added, and depending on the relative proportions of the reactants, gives rise to trienes, triene polymers and condensation products of the trienes with the allyl starting material. The products are not only polymerizable but also absorb oxygen to produce oxidized resin-like products, and are therefore useful for the manufacture of synthetic drying oils and resins for use in the paint, varnish, waterproofing and protective coating, safety glass, textile and leather printing industries. Examples are given of the following conversions which are effected in liquid ammonia at -35‹C. and under atmosphere pressure using varying amounts of sodamide :-(1) allyl chloride into hexatriene and its dimer having the constitution of 1-butadienyl-2-vinylcyclohexene-3 ; (2) allyl chloride into the dimer, trimer and tetramer of hexatriene ; (3) allyl chloride into the condensate of hexatriene with allyl chloride, viz. chloromethyl-2- vinyl-cyclohexene-3 ; (4) allyl bromide with products corresponding with those of (1) to (3) ; (5) methallyl chloride into 2 : 5-dimethylhexatriene-1 : 3 : 5 ; (6) crotyl chloride into 1 : 6 -dimethyl-hexatriene-1 : 3 : 5 ; (7) cinnamyl chloride into 1 : 6-diphenyl-hexatriene-1: 3: 5; (8) 1 : 4-dichloro or dibromo-butene-2 into a straight-chain polymer of high molecular weight; (9) 2 : 3 dichloropropene-1 into a polymer (CH  2  = CC1CH =) n  ; (10) 1-carbethoxy-3-chloropropene into 1 : 6-dicarbethoxy-hexatriene-1 : 3 : 5. The Specificatuon as open to inspection under Sect. 91 also refers to the use of starting materials in which R represents a carboxylic ester radicle and wherein both Rand R<SP>1</SP> contain less than 13 carbon atoms. This subjectmatter does not appear in the Specification as accepted.
Patent GB-271507-A (GB)
Title: Improved process for producing light-sensitive films
IPC: G03C1/496
Filed: 1927-05-20
Abstract: 271,507. Bernet, U. Diem-. May 21, 1926, [Convention date]. Films. - Transparent homogeneous sensitive films for photography or kinematography are formed of viscose impregnated in the mass during manufacture with sensitive material such as silver halides or ferric salts, so that it is sensitive on both sides. The sensitive material may be added to the film mass at any stage of the manufacture before the final drying of the film base. Sensitizing with iron may be effected by a bath of ammonium ferric citrate; or with silver by bathing the cast but undried film successively in alkaline halide and silver nitrate baths. The films may be used in the reflex copying (playertype) process. The Specification as open to inspection under Sect. 91 (3) (a) describes films of cellulose acetate, cellulose citrate, and cellophane, and states that for use in special processes, such as the reflex copying process, the film may be cast on a support such as celloidin or gelatin, and may carry an anti-halation coating or a colour filter. This subject-matter does not appear in the Specification as accepted.
Patent GB-291025-A (GB)
Title: Improved apparatus for electrically exploring the ground or soil
IPC: G01V3/06
Filed: 1928-05-09
Abstract: 291,025. Ambronn, R. May 24, 1927, [Convention date]. Prospecting for material.-In prospecting for minerals by alternating current, currents induced in the measuring-apparatus by inductive or capacitative action are eliminated by artificially creating a neutral point and connecting this to earth. In the arrangement shown in Fig. 1, the measuring-apparatus K is connected to the induction frame R, exposed to the alternating magnetic field at the point under examination, and to an amplifier V and telephone T. Across the terminals of the measuring apparatus K is connected a resistance W, a point a on which corresponding to the neutral point within the apparatus K is earthed at E. In a modification, Fig. 2, the induction frame is replaced by sounding devices S1, S2, and between the points of connection of the resistance W and the apparatus K are connected two resistances W1, W2 so arranged that one increases as the other diminishes, so that their sum is constant. The resistance W may be replaced by two variable condensers in series, their connecting point being earthed. In a further modification, Fig. 4, an adjustable phase displacement is introduced into the earthing of the point a by means of a variable inductance L, resistance 0, and condenser C. The apparatus K is shown in Fig. 5 and comprises a pair of fixed coils I, II connected in series with the phase coupling line Ph.K.L. and with the primary winding of a transformer Tr2, the secondary winding of which is in series with a second pair of fixed coils III, IV producing therein a current approximately in quadrature with that in the phase coupling line. A rotating magnetic field is thus produced and acts inductively on an angularly adjustable coil Cr in series with a resistance Rm, across an adjustable portion of which is connected a circuit including the induction frame R, amplifier V, and telephone T. Specification 267,501 is referred to.
Patent GB-564997-A (GB)
Title: Improvements in or relating to thread winding machines
IPC: B65H54/28
Filed: 1942-09-30
Abstract: 564,997. Winding yarns and threads. SCHARER, K. J. (trading as MASCHINENFABRIK SCHARER). Sept. 30, 1942, No. 13714. Convention date, Dec. 1, 1941. [Class 120 (ii)] In a thread winding machine of the kind in which in order to impart an additional traverse to the guide 13 the traverse cam 3 is given an axial displacement by two coaxial gears 21, 22 having co-operating lateral cam faces 23, 24, the gear 22 serving to drive the cam 3, the gears 21, 22 together with the cam 3 are arranged coaxially on the winding spindle 2 from which the pair of gears 21, 22 are positively driven. The spindle 2 is driven by a friction disc 1 and the traverse bar 7 is reciprocated in a carrier tube 8. Motion is transmitted from a toothed portion 17 on the shaft 2 through gears 18, 20 to the two gears 21, 22. The auxiliary gear 21 is formed with one more tooth than the driving gear 22 and through the action of the cam faces 23, 24 the gear 22 together with the cam 3 is given a relatively slow axial reciprocating movement, thus moving the traverse path of the guide 13.
Patent GB-401713-A (GB)
Title: Improvements in and relating to the automatic regulation of the excitation of alternating current machines
IPC: H02P9/00
Filed: 1932-05-13
Abstract: 401,713. Automatic regulation ; synchronous alternators. BRUSH ELECTRICAL ENGINEERING CO., Ltd., MESSENT, J. S., and SUTTON, C. C., Falcon Works, Loughborough. May 13, 1932, No. 13812. [Classes 35 and 38 (iv).] The excitation 2 of an alternating-current generator 1 is supplied from an exciter 3 provided with " rectifier compounding " 8 wherein a compounding field is supplied from a current transformer 5, 7 on the output of the machine 1 through a full wave copper oxide rectifier 6, a correcting effect, tending to reduce the magnetisation of the field, being provided by a winding 9 the current through which is regulated in accordance with the power input to the generator. The field 9 may be self-excited from the exciter and its current controlled by a resistance 10 operated by an arm 12 connected to a part of the governor of the prime mover driving the alternator, which moves in accordance with the power developed by the prime mover. As applied to an oil pressure relay governing system on a reaction water turbine driving the alternator the arm 12 may be connected to the mechanism by which the governor controlled relay moves the guide vanes of the turbine. Where the speed of the shaft is a function of the power input to or output of the machine, the regulation may be obtained from a centrifugal device driven thereby, or alternatively from a series resonant electrical circuit connected across the alternator terminals in series with a bridge connected copper-oxide rectifier which supplies a bucking winding on the exciter. Where the alternator is driven by a D.C or A.C motor the motor current, rectified where necessary, may bo passed through the bucking winding on the exciter.