baber/WOPTO huggingface dataset:
Patent GB-535609-A (GB)
Title: Improvements in or relating to the manufacture of non-metallic sliding clasp fasteners
IPC: B29D5/08
Filed: 1939-07-04
Abstract: 535,609. Sliding-clasp fasteners. PUSCHNER, J., and PUSCHNER, J. July 4, 1939, Nos. 19487 and 19488. Convention dates, July 14, 1938, and Sept. 23, 1938. [Class 44] In the manufacture of non-metallic sliding- clasp fasteners a flat strip 11 of non-metallic material of plastics type, is marginally secured to the edges of a pair of spaced tapes 13, 14, Fig. 7. As shown, the strip is pre-formed with teeth 12. Material is then removed by stamping out to leave a ladder-like series of blanks 15, Fig. 8, which is then bent to final U-form, Fig. 9, with the non-metallic material outside and the tapes superposed. Alternatively, a non-metallic strip may be secured centrally along a single tape and brought to ladder-like form by stamping &c. so that in the finished form, the whole of each element 15 is backed by tape material. The Specification as open to inspection under Sect. 91 includes the use of a slotted tape, the separate formation of the individual members 15 prior to securing the tape, the moulding of such members in situ, and the final bending to U-form with the tape outside so that each fastener member is fabric covered. A list of suitable non-metallic materials is also given. This subject-matter does not appear in the Specification as accepted.
Patent GB-864738-A (GB)
Title: Improvements in and relating to ventilation
Inventor: BURNS BASIL ERNEST
IPC: B08B15/02
Filed: 1956-06-22
Abstract: 864,738. Ventilating. MATTHEW HALL & CO. Ltd. June 21, 1957 [June 22, 1956], No. 19500/56. Class 137 In a fume cupboard in which an extra duct D serves to discharge the gaseous contents of a chamber C to atmosphere a nozzle 2 in the duct D is connected to a source of high pressure air, such as a pipe 1, to induce a flow of the gaseous contents when so required. The chamber C has an inspection shutter S mounted in guides B and has a slot 12 in a false bottom 8 to provide a secondary flow of air (from a high pressure box 9) supplied through the pipes 1 1 and 1 across the shutter opening to create a front curtain between the chamber's interior and exterior, or has air entering from a partly or generally perforated false bottom. The box 9 may be connected instead to a fan collecting air through a duct from other parts of the building. There may be a drip tray underneath the perforations or the floor of the box may be at an angle so that liquid runs off into a gully. In a modification the cupboard has a false ceiling with an opening for the gases, the top is bell-shaped, and in the pressure box is a sparge pipe for washing down. Outside air may be supplied to the nozzle and box 9.
Patent GB-373466-A (GB)
Title: Improvements in small electric motors
IPC: H02K23/66
Filed: 1931-07-07
Abstract: 373,466. Motors. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. July 7, 1931, No. 19523. Convention date,. Aug. 4, 1930. [Class 35.] Brush - holders; terminals a n d accessories, a r - rangement on ma. chines.-In a small electric motor, particularly suitable for operating windscreen wipers on motor vehicles. a fixed insulating plate 7 mounted adjacent the commutator 11 supports the brushholders 9 on one side and a switch contact or contacts 12, 13 on the other side, a switch handle 15 being mounted in the motor casing to operate the contacts. The plate 7 is secured to the polepieces 5 by means of a yoke 6. The handle 15 is rotatable in a detachable casing cap 14 and is provided with an insulating cam 16 which presses the contact 13 against the contact 12. A pin 17 on the armature shaft 3 projects through a bore in the plate 7, which bore can be constructed as a bearing. The brush-holders 9 are carried by two bolts 8 and are pressed against the commutator by a single spring.
Patent GB-439849-A (GB)
Title: Improvements in magnetos
IPC: H02K1/27
Filed: 1935-07-09
Abstract: 439,849. Riveted joints. BERNARD, J., 117, Boulevard Exelmans, Paris. July 9, 1935, Nos. 19565 and 19566. Convention dates, July 24, 1934 and Dec. 18, 1934. [Class 83 (iv)] [See also Group XXXV] The laminations of a magneto polepiece are secured by rivets 15 insulated from the laminations by washers 18 and tubes 17. To prevent the tubes from being split in riveting, steel washers 19 are placed between the heads of the rivets and the washers 18.
Patent GB-516630-A (GB)
Title: Improvements relating to carrier wave transmission systems
IPC: H04H20/88
Filed: 1938-07-01
Abstract: 516,630. Multiplex wireless signalling ; television. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. July 1, 1938, No. 19573. [Classes 40 (iii) and 40 (v)] Stereoscopic or two-colour television 'signals are transmitted by modulating the two signals on separate carriers of the same frequency dephased by 90. Carrier oscillations generated by valve V1 are transmitted to modulating valve V2, where one signal is impressed upon them from transformer T1. Modulated carrier is passed to the output tuned circuit TC3. Carrier is also modulated with the second signal from transformer T2 in the carrier suppression modulator V3, V4, the sidebands only passing to the output circuit TC3. The tuned circuits TC2, TC4, which are coupled to the oscillator circuit TC1, are de-tuned above and below resonance to produce the 90 dephasing between the carriers supplied to the two modulators. In Fig. 2 (not shown) both modulators are of the carrier suppression type, and an adjustable amount of carrier of one phase is fed to the output circuit via a separate amplifying valve. At the receiver the signals are obtained by demodulation with a carrier of correct phase. After amplification and frequency-changing of the sidebands and carrier in the receiver, Fig. 3 (not shown), the carrier is separated by a " crystal gate," and after further amplification is split into two 90 dephased components for application to two separate heterodyne demodulators. The demodulating carrier at the receiver may be obtained from a local oscillator, and automatic frequency-control may be applied to the receiver. Specification 457,485 is referred to.
Patent GB-1056026-A (GB)
Title: Flexible wrapping material
IPC: B32B27/00
Filed: 1964-05-11
Abstract: 1,056,026. Laminates. CURWOOD Inc. May 11, 1964 [May 14, 1963]. No. 19576/64. Heading B5N. A laminated wrapping material comprises in sequential layers, polyethylene 10, a film of regenerated cellulose 11, polyethylene 12, and a heat-resisting exterior layer 13 of a material having a melting-point higher than the adjacent polyethylene layer. The heat-resistant layer is preferably heat-set bi-axially oriented polypropylene, although polyethylene terephthalate may be used. Preferably the regenerated cellulose layer 11 is coated on at least one side with a vinylidene chloride co-polymer, and the cellulose may be prime coated with a dilute polyethylene imine solution. Preferably the polyethylene has a density of 0.914- 0.925 and a melt index between 4-12. The composite sheet may be extrusion laminated.
Patent GB-853367-A (GB)
Title: Means for the storage and transportation of a commodity which needs to be maintained at low temperature
IPC: F17C13/08
Filed: 1959-06-08
Abstract: 853,367. Carrying liquefied gases. CONCH INTERNATIONAL METHANE Ltd., [formerly CONSTOCK INTERNATIONAL METHANE Ltd.]. June 8, 1959 [June 24, 1958], No. 19586/59. Class 113. [Also in Group XXVIII] A flat-bottomed liquefied gas e.g., methane transportation tank 18, Fig. 1, is supported on the floor 24 of a heat insulation lined hold space 15 of a ship 10 so as to allow of thermal expansion and contraction but to prevent lateral displacement due to rolling of the ship by engagement of longitudinally spaced tongues 30, 30a, Fig. 3, projecting down from the longitudinal centre line of the tank bottom with corresponding slots 26, 28 cut in a wooden block 34 set in the floor 24. The width of each slot is just sufficient to accommodate the corresponding tongue, the length of the central slot 28 is equal to that of the central tongue 30a but the lengths of the remaining slots 26 increases so as to provide expansion and contraction spaces 32. Similar tongues projecting up from the tank top engage corresponding slots in the insulation lining. The latter comprises balsa wood 22 and glass wool 16.
Patent GB-768644-A (GB)
Title: Cyclopentanopolyhydrophenanthrene compounds
IPC: C07J75/00
Filed: 1952-08-01
Abstract: D 7,9(11) - 7 - Acyloxy - cyclopentanopolyhydrophenanthrene compounds are prepared by acylating a 7-keto-cyclopentanopolyhydrophenanthrene compound having at rings B and C the formula <FORM:0768644/IV(b)/1> or <FORM:0768644/IV(b)/2> The acylation may be carried out in the presence of a catalyst such as acetyl chloride, p-toluenesulphonic or pyridine.  The preferred acylating agents are the anhydrides of alkanoic acids containing not more than 6 carbon atoms, e.g. acetic or propionic anhydride.  The process may be modified in that the 7-keto reactant is prepared by the method claimed in Specification 768,645.  The 7-keto reactant may contain a hydroxy or acyloxy substituent in the 3-position of the molecule and/or attached to the 17-position a sterol side-chain such as in D 8(9),22- and D 9(11),22 - 7 - keto - ergostadiene, D 8(9),22- and D 9(11),22 - 3 - hydroxy - 7 - keto - ergostadiene, D 8(9) - and D 9(11) - 7 - keto - cholestene, -D 8()9 - and D 9(11) - 3 - hydroxy - 7 - keto cholestene, D 8(9),22- and D 9(11),22-3-hydroxy-7 - keto - stigmastadiene, a bile acid side chain such as in D 8(9)- and D 9(11)-3-hydroxy-7-ketocholenic acid, D 8(9)- and D 9(11)-3-hydroxy-7-keto -allocholenic acid, a degraded bile acid side chain such as in D 8(9)- and D 8(11)-3-hydroxy-7-keto -bisnorcholenic acid and D 8(9)- and D 9(11)-3 - hydroxy - 7 - keto - bisnorallocholenic acid, a carboxyl substituent such as in D 8(9)- and D 9(11) - 7 - keto - etioallocholenic acid, on acetyl substituent such as in D 8(9)-3-hydroxy7,20-diketo-pregnene and D 8(9)-3-hydroxy7,20-diketo-allopregnene, or a sapogenin side chain such as in D 8(9)- and D 9(11)-7-keto-dehydrotigogenin.  In the examples the following compounds are prepared: D 7,9(11),22-3,7-diacetoxy - ergostatriene, D 7,9(11) - 7 - acetoxy - bisdehydrotigogenin acetate and methyl D 7,9(11) - 3,7 - diacetoxy - choladienate.  Other compounds which may be prepared are D 7,9(11),22-7-acetoxy-ergostatriene, D 7,9(11),22-7 - acetoxy - cholestadiene, D 7,9(11)22 - 3,7 - diacetoxy - cholestadiene, D 7,9(11),22 - 3,7 - diacetoxy - stigmastatriene, D 7,9(11) - 3,7 - diacetoxy - choladienic acid, D 7,9(11) - diacetoxy - allocholadienic acid, D 7,9(11) - 3,7 - diacetoxybisnorcholadienic acid, D 7,9(11)-3,7-diacetoxybisnorallocholadienic acid, D 7,9(11) - 3,7 - diacetoxy-etiocholadienic acid, D 7,9(11)-3,7-diacetoxy - etioallocholadienic acid, D 7,9(11)-3,7-diacetoxy - pregnadiene and D 7,9(11) - 3,7 - diacetoxy - allopregnadiene.  Specification 768,648 is referred to.
Patent GB-1220013-A (GB)
Title: Improvements in the production of gas electrodes
IPC: H01M4/88
Filed: 1969-04-17
Abstract: 1,220,013. Polymer compositions. ROBERT BOSCH G.m.b.H. 17 April, 1969 [17 April, 1968], No. 19651/69. Headings C3C, C3P, C3Q and C3R. [Also in Division H1] A varnish, e.g. a polyurethane, cyclorubber, polymethacrylate, bituminous or phenolic resin varnish, which contains a metal compound such as Ag 2 O, AgO, Ag 2 CO 3 , an oxide or hydroxide of Pt or Ni, is applied to a gas-permeable base. The varnish is then dried or hardened and the metal compound is electrochemically reduced to the metal, thus producing a porous layer. The varnish may also contain electrically conducting material such as finely dispersed Ag, Au, Ni, graphite, carbon-black, heavy-metal carbides, nitrides or oxides. The porous structures produced are used as gas-diffusion electrodes. In an example a viscous paste formed from a polyurethane varnish, silver powder, silver oxide and xylene is applied to a porous foil of P.T.F.E. and then dried. The silver oxide is then electrochemically reduced. In another example, a paste made from a cyclo-rubber varnish, comprising cyclo-rubber resin and mineral spirits, together with silver powder and platinic dioxide, is painted on to a porous plate of sintered polytrifluorochloroethylene powder and then dried. The platinic dioxide is then reduced. In a further example a varnish paste made from polymethacrylic acid butyl ester resin dissolved in ethyl glycol and xylene, silver powder and nickel hydroxide is painted on to a P.T.F.E. foil and then dried. The nickel hydroxide is then reduced.
Patent GB-478645-A (GB)
Title: Improvements in or relating to feeding troughs for hen batteries and the like
IPC: A01K39/014
Filed: 1936-07-17
Abstract: 478,645. Battery cages. DUXBURY, H.; and BRIGGS, J., and DUXBURY, W. A., (trading as BRIGGS & DUXBURY). July 17, 1936, No. 19798. [Class 5 (ii)] In hen batteries, food troughs r are made in sections with a grit compartment s at each end and with a baffle bar t in the trough to prevent food from being scooped towards the hen and wasted. Baffles v hooked on to longitudinal bars u, to which the food troughs r are attached, are provided to prevent dirt from dropping too near the edge of the band and into a trough of a lower tier of cages.
Patent GB-401058-A (GB)
Title: Supercharger driving-gear for internal-combustion engines
IPC: F16H3/66
Filed: 1932-07-13
Abstract: 401,058. Centrifugal fans. ARMSTRONG SIDDELEY MOTORS, Ltd., VIALE, S. M., and PRIOR, D. L., Park Side, Coventry. July 13, 1932, No. 19801. [Class 110 (i).] A two-speed speeding-up gear suitable for driving superchargers upon aircraft yields ratios closer together than does the arrangement of Specification 335,250, [Class 110 (i), Centrifugal and screw fans &c.]. The invention comprises triple planets 28, 29, 30, Fig. 1, in a loose carrier 18 which is held fast by a brake 34 for the higher speed. Since the engine crank-shaft 11 drives the pinion 28 through an internally-toothed gear 14, a sun gear 32 on the spindle 22 of the fan is driven reversely to the crank-shaft. To effect the lower speed, the brake 34 is released, whereupon a sun gear 41 meshing with the pinion 30 is engaged by a detent 42 and kept from rotating in the same direction as the crank-shaft, so that it forms a fulcrum by which the sun gear 32 is driven at a slower speed in the same direction as before, that is, reversely to the crank-shaft. In the form shown in Fig. 2, a centrifugal clutch 31 is arranged inside so as to drive the large planetary gear 29 as described in Specification 129,030, [Class 80 (i), Gearing, Belt &c.], and the brake 34 is applied by fluid pressure pistons 37 as described in Specification 350,629. Between the crank-shaft 11 and a disc 12 leading to the gear 14 is a floating toothed driving-ring 13 described in Specification 256,718, [Class 80 (ii), Gearing, Variable-speed &c.]. Means for reducing shocks are interposed between the disc 12 and the gear 14 comprising tangential coil springs 15, Fig. 4, between lugs 16 on the rim of the disc 12 and lugs 17 on the outer edge of the gear 14.
Patent GB-1386859-A (GB)
Title: Rescinnamine-like compounds and a process for producing the same
IPC: C07D459/00
Filed: 1972-04-28
Abstract: 1386859 Rescinnamine-like compounds NIPPON CHEMIPHAR CO Ltd 28 April 1972 [8 Oct 1971 (2) 28 Dec 1971] 19862/72 Heading C2C  Novel compounds I in which R, R<SP>1</SP> and R<SP>11</SP> are 1-4C alkyl; R 1  is H or NO 2 ; R 2  and R 3  are H, OH, 1-4C alkoxy, aralkyloxy, or 2-5C alkoxycarbonyloxy; R 4  is H or 1-4C alkoxy or R 3  and R 4  together may form 1-4C alkylenedioxy with the exception of compounds I where (i) R 1  to R 4  are all H or (ii) R 1  is H and R 2  to R 4  are all 1-4C alkoxy or (iii) R 1  and R 2  are H and R 3  and R 4  together form 1-4C alkylenedioxy are prepared by reacting an alkyl reserpate II with a cinnamic acid derivative III or by hydrolysis of compounds I in which R 2  or R 3  is alkoxycarbonyloxy to give compounds I in which R 2  or R 3  is OH. The compounds II may be prepared by selective hydrolysis of compounds IV 6 - Nitro - 3,4 - methylenedioxycinnamoyl chloride is prepared by reaction of the free acid with SOCl 2 .
Patent GB-864594-A (GB)
Title: Process and apparatus for the preparation of sand for use in concrete aggregates
Inventor: KONING JAN DE
IPC: B07B1/00
Filed: 1959-06-10
Abstract: 864,594. Filters; systems of filtration. STAMICARBON N.V. June 10, 1959, No. 19932/59. Class 46. [Also in Group II] Particulate material (e.g. sand) of mixed sizes suspended in liquid (e.g. water) is fed at 2 to a screen 1 and treated thereon according to the method prescribed in claim 1 of one of Specifications 791,520, 791,857, 791,858 and 791,859. Liquid and solid throughput are fed in the same manner to screens 7 and 7<SP>1</SP> at 17 and 17<SP>1</SP> respectively. The " fineness modulus" (defined in the Specification) of the oversize flowing (with liquid) off decks 7 and 7<SP>1</SP> is controlled by controlling the thickness of the layer of suspension flowing on to each deck 7 or 7<SP>1</SP> : in the case of deck 7, by adjusting the width of feed slot 19 by a sliding-plate 20, and in the case of deck 7<SP>1</SP> by adding liquid from a perforate conduit 22. Alternatively, in either case the fineness modulus may be controlled by adjusting the effective length of the deck e.g. by a sliding closing-off plate. The desired product is the oversize from decks 7, 7<SP>1</SP>, being sand for use in concrete aggregates. Oversize from deck 1 may be washed to obtain concrete gravel, and undersize from decks 7, 7<SP>1</SP> may be pumped on to building sites which are to be raised. Specification 801,212 also is referred to.
Patent GB-805965-A (GB)
Title: Improvements in and relating to threshing machines
IPC: A01F12/00
Filed: 1956-06-27
Abstract: 805,965. Threshing machines. WESTERASMASKINER A.B. June 27, 1956 [July 29, 1955], No. 19960/56. Class 6(3). In a threshing machine, the space between the threshing cylinder 1 and the straw-rack 3 is occupied by an auxilairy beater 4 and a screen 30 which forms an extension of the threshing concave 2, the beater having at least five blades. Endless aprons 5, 6 feed the crop to the cylinder 1, from which straw is swept rearwardly by the beater 4 while the grain gravitates on to a platform 17. The screen 30 comprises longitudinal wires and transverse bars, the wires being extended at 39 to bridge the gap between the beater and straw-rack 3. An imperforate portion 38 separates the screen 30 from the concave 2, and a plate 11 separates the beater from the threshing cylinder and prevents straw from being forced up between them. The beater comprises radial arms 25 carrying strips 26 extending parallel to the beater spindle 21, and acts as a centrifugal fan to blow air through the screen 30. The gap between the beater and screen is about 3.5  times the gap between the cylinder and concave. Specification 805,966 is referred to.
Patent GB-692464-A (GB)
Title: Improvements in or relating to electrical apparatus
IPC: H01F27/32
Filed: 1951-08-24
Abstract: 692,464. Transformers. SIEMENS & HALSKE AKT.-GES. Aug. 24, 1951 [Aug. 25, 1950], No. 20009/51. Drawings to Specification. Class 38 (ii). Electrical apparatus, such as a transformer, comprises one or more parts which are insulated by embedding them in a body of insulating material, the insulating material employed being one which is liquid during the forming of the body, if necessary due to the application of heat, but which does not become liquid again after final hardening even at relatively high temperatures, and one or more insulators of arcproof material (e.g. of the ceramic type) incorporated in the insulating body before the final hardening thereof. Plasticizers may be added to the insulating body in the vicinity of the insulators. Conductive coatings may be arranged over the insulators and the body to form electrostatic screens and the insulators may be attached mechanically to the transformer casing.
Patent GB-246395-A (GB)
Title: Mail-cart
IPC: B62B3/10
Filed: 1925-08-10
Abstract: 246,395. Rahmede, E. Aug. 10, 1925. Bodies; collapsable vehicles.-In a mail-cart of the kind having a frame composed of gas piping, the T-shaped base a, d supports three uprights g carrying a U-shaped piece i to which the handle l is attached and from which the seat m is slung. The T-shaped base is provided with three wheels b, b e and a foot rest n is supported by the two front uprights g. The various tubes or pipes are connected together by sleeves f, h, k so that the mail-cart is collapsable.
Patent GB-1134156-A (GB)
Title: Crane boom jib assembly
IPC: B66C23/70
Filed: 1967-05-01
Abstract: 1,134,156. Mobile telescopic jib-cranes. GROVE MFG. CO. 1 May, 1967 [11 May, 1966], No. 20083/67. Heading B8B. A crane boom comprising an hydraulically extensible boom assembly 2 including a base section 2a, a mid-section 2b and a fly-section 2c is pivotally mounted at 3 to a pair of boom supports 4 carried by a turntable 5 mounted on a vehicle frame 6. A jib 1 is retained in stored position under the base section 2a by coupling means comprising a pair of fingers 23 and a finger 25 respectively engaging slots in lugs 22, 24. A releasable lock pin 26 holds the lug 24 on the finger 25 when the jib 1 is mounted in the stored position, a pair of flexible guy cables 27 for stabilizing the jib 1 in the operative position being retained by pins 20 when out of use. Removal of the pin 26 and transference of the pins 20 to apertures in bifurcations 19 enables the jib 1 to swing about a shaft 15 away from the base section 2a when the fly section 2c is extended to pull the lugs 22, 24 off the fingers 23, 25, respectively, the boom assembly being positioned transversely to the vehicle, Fig. 8 (not shown). The boom assembly is then swung to a position extending over the front of the vehicle and lowered to allow jib sheave assembly 18 to engage the ground (full lines in Fig. 9). The vehicle is then backed up until the jib 1 reaches the position shown in dotted lines in Fig. 9 when the hoist cable can be rigged through nose assembly 11. By taking up on the hoist cable winch hook assembly 32 engages the sheave assembly 18 to raise the free end of the jib 1 sufficiently to allow the cables 27 to be secured to shaft 16 (Fig. 10). The jib 1 is replaced in the stored position by reversing the above sequence of operations, except that the hoist cable 13 is looped over an arcuate shoe 34 and the end of the cable is secured to a hook anchor 33 to enable the jib 1 to be lifted up under the base section 2a.
Patent GB-362367-A (GB)
Title: Method for the assembly of the wheel and gear case to the back gear of the frame of motor-cycles and like vehicles
IPC: B62M11/00
Filed: 1930-05-21
Abstract: 362,367. Detachable cycle wheel and gear-case mountings. LAGUESSE, F., 510, Rue Hayeneux, Herstal, near Liege, Belgium. May 21, 1930, No. 20128/31. Convention date, May 21, 1929. Divided on 355,682. [Classes 136 (i) and 136 (ii).] In a readily detachable mounting for the back wheel and bevel gear case of motor-cycles &c., the wheel hub 4 and the gear case 9 are mounted upon a tubular double conical shaft 2, which is mounted at its ends in recesses in the fork lugs 3 and is traversed by a readily withdrawable spindle 1. The case 9 is made in two parts and is keyed upon the shaft 2. A positioning-nut 12 is locked by a pin 11, and a nut 13 screws on the end of the shaft 2. In order to prevent rotation of the gear case 9 under the driving torque, it is provided with ribs engaging corresponding ribs on the fork lug 3. To dismount the wheel, the spindle 1 is withdrawn and the shaft 2 disengaged from the fork lugs 3, which have sufficient elasticity for this purpose. Replacement is facilitated by the ribs on the fork lugs 3, and by rear extensions on the lugs, adapted to support and guide the ends of the shaft 2.