baber/WOPTO huggingface dataset:
Patent GB-333620-A (GB)
Title: Improvements in the manufacture of paper
IPC: D21H23/00
Filed: 1929-05-17
Abstract: 333,620. Haddan, R., (Raffold International Corporation). May 17, 1929. Sizing.-Sized paper is made from pulp stock having a carbonate filler and a paraffin emulsion mixed with the fibrous material. Alum may be added, and resin size may be used as a saponaceous emulsifying agent for the paraffin. The paraffin emulsion and the carbonate filler produce a stabLe flocculent precipitate which is non-sticky, non-agglomerant, and ink-resistant. The materials may also be applied to making of substantially unsized paper containing only about 0.5 per cent of size. The material may be mixed in the beater and the paper produced in the ordinary manner on a Fourdrinier, cylinder, or other forming, felting, shaping or moulding machine and dried and finished in the customary manner. The carbonate filler may be any filling materials such as calcium carbonate e.g. lime mud; calcium magnesium carbonate; calcium carbonate magnesium hydroxide; and other normal or compound carbonates of alkaline earth metals, magnesinm, or ammonia which give a pH value greater than 7.0 and which evolve carbon dioxide when treated with aqueous mineral acid; the term carbonate filler is also stated to include such compounds in association with old papers, broke, &c. The paraffin may be paraffin wax or any hydrocarbons of a waxv nature which are substantially unsaponifiable and inert and may be obtained from petroleum, shale, lignite, earth wax. &c. The resin size may be any product of an alkali on resin or on any synthetic resin acid. Other saponaceous emulsifying agents are ammonium oleate, sodium stearate, &c. or a mixture of these with or without montan wax may be used. The paraffin may be dispersed in a solution of sodium silicate &c. and precipitated with alum. The emulsions may be prepared in a. colloid mill. homogenizer &c. for example the resin and the paraffin may be melted together and the fluxed mass intimately mixed with an aqueous alkali such as sodium hydroxide, or with sodium silicate. If a colloid mill is used, the alkali solution is preferably heated and directed with the heated melt preferably in continuous proportionate streams into the inlet orifice of the null. Instead of alum as a precipitant, other aluminium salts, sulphuric acid, sodium bisulphate &c. may be used. The order of addition of the various ingredients to the fibrous mix may be varied. In an example of the proportions by weight of the ingredients; to 1760 parts of fibrous material made up with equal parts, on an air dry basis, of sulphite pulp, soda pulp, and old paper stock, are added 40 parts of saponaceous paraffin emulsion, 75 parts of alum, and 240 parts of calcium carbonate magnesium hydroxide.
Patent GB-315821-A (GB)
Title: Improvements in amplifiers for telegraphic and like signals
IPC: H03B19/03
Filed: 1929-05-17
Abstract: 315,821. Electrical Research Products, Inc., (Assignees of Burton, E. T.). July 19, 1928, [Convention date). Addition to 312,338. Eliminating effects of disturbing currents.-In means for correcting zero wander in cable telegraphy use is made of the effect of magnetic saturation in a transformer with a core of permalloy or like material of high permeability. Signals pass from the input terminals 30 of an amplifier, Fig. 1, to the output circuit 14 through the primary coils 12, 13 of two transformers having permalloy cores. These are biased by coils 17, 18, carrying oppositely-polarizing direct currents. Both cores are saturated in the absence of signals, but the core of the coil 13 is so biassed that it becomes unsaturated for positive signals stronger than the peak strength of normal signals, while the core of the coil 12 is similarly biassed for negative signals. When a positive signal, as a result of zero wander, exceeds the normal peak voltage X as indicated at a, Fig. 2, the core of the coil 13 becomes unsaturated and a pair of impulses B is applied through the secondary 16 to a circuit containing a rectifier. A single negative charge C is therefore stored in the condenser and leaks away as at D, biassing the grid 25 and thus restoring the zero to its normal position. A similar but opposite effect takes place through the coils 12, 15, to correct zero wander arising from negative signals. In a modification a fourth pair of coils applies altermating potential from a local source to the secondaries 15, 16 for the purpose of enhancing the correcting-charge applied to the grid 25, and triode rectifiers are used instead of the rectifiers 20, 26. The circuits in this arrangement may be such that the triode rectifiers have no anode batteries (Fig. 3, not shown) or have separate anode batteries (Fig. 5, not shown). Indicating zero wander. The occurrence and direction of zero wander can be detected by means of the arrangement shown in Fig. 6. The signals pass through primaries 51, 52, the cores of which are oppositely biased by coils 53, 54. So long as the peaks of the signal impulses do not exceed the normal value the cores of the transformers remain saturated, but if this value be exceeded clicks are heard when the telephone 60 is connected at 62 to one or other of the coils 58, 59, according to the polarity of the zero wander.
Patent GB-110792-A (GB)
Title: Improvements in and relating to Fluid Flow Meters.
IPC: G01F1/44
Filed: 1916-10-31
Abstract: 110,792. British Thomson-Houston Co., (General Electric Co.). Oct. 31, 1916. Venturi apparatus.-The flow tube of a fluid meter is secured in a conduit by means of a flange 10 held between coupling pieces 7, 8. The throat pressure is taken by means of apertures 14 in a ring 13, a groove 12 and a radial passage in the flange 10. The up-stream end of the tube has straight portions 16a, 16<c> connected 'by a curved portion 16b and the pressure is taken by means of apertures 24 in pipes 20, a recess 19 and a radial passage 25.
Patent GB-1139951-A (GB)
Title: Shaft-and-hub assemblies
Inventor: MILLA SALVATORE JOSEPH DI
IPC: F16D3/19
Filed: 1966-04-07
Abstract: 1,139,951. Shaft-to-hub coupling. INTERNATIONAL HARVESTER CO. 7 April, 1966, No. 15553/66. Heading F2U. In a universal joint, Fig. 2 (not shown), for connecting a vehicle engine drive shaft (11) to the input shaft (12) of an air compressor and/or vacuum pump, and comprising two steel coupling hubs (17), (18), each connected to a respective shaft, and a flexible coupling sleeve (19) extending between the hubs and provided with internal rubber ribs (20) which mesh with external grooves (23), (21) of the coupling hubs, the driving hub (17) is rigidly connected to the shaft (11) by means of (a) clamping members 53 received in a recess 32 in the hub end and which extend around the shaft and are urged into frictional engagement with the shaft and with abutments 66, 67, on the hub, by bolts 69; and (b) by a feather key member (65), Fig. 8 (not shown), disposed in keyway slots in the hub and shaft, and gripped in notches 63 between the two clamping members 53. The shaft (11) is provided with a tapered end portion which is received in a correspondingly tapered bore in the hub (17) to prevent "wobbling." The hub (18), Fig. 2, is secured on the tapered end of the shaft (12) by a key and nut. The ribs and grooves on the hub are chamfered to facilitate assembly.
Patent GB-502895-A (GB)
Title: Improvements in machinery for drying crops and grain, grass, hay and the like
IPC: F28F3/12
Filed: 1937-06-05
Abstract: 502,895. Conveyers. PESSELL, R.C. June 5, 1937, No. 15610. [Class 78 (i)] [Also in Group XIII] Apparatus for drying grass &c. which may be readily dismantled comprises superposed steamheated plates 1 mounted on a stationary shaft 9 carrying heels 10 having radial arms 11 provided with tines 17 and secured at their outer ends to rings 12 having lugs f3 adapted to be engaged by spiders 14 on a rotary shaft 15, the grass being fed to the uppermost plate by a conveyer 24 and endless-chains 26, Fig 7. The speed of the chains increases progressively from the centre to the periphery of the plate to secure uniform distribution of the grass which passes downwardly over successive plates through closable radial apertures therein. Reference has been directed by the Comptroller to Specifications 4399/91, 16281/91, 10340/07, [all in Class 34], and 150,068, [Class 34 (ii)].
Patent GB-476487-A (GB)
Title: Air cooling of internal combustion engines
IPC: F02F1/06
Filed: 1936-06-04
Abstract: 476,487. Cooling cylinders. ROWLEDGE, A. J. June 4, 1936, No. 15628. [Class 7 (ii)] In an in-line engine in which cooling air is discharged against one side of a cylinder bank, baffles B, which extend into the cylinder heads, have passages C which convey part of the air to the rear of the cylinders ; the air is discharged on to the fins through orifices C<2>, which preferably have wings D with curvedover ends D<1> in contact with the cylinder fins. Figs. 1 and 2 show branched passages C leading to a common exit, but Fig. 6 shows single passages leading to one side of the cylinder where baffles E<2>, extending to the roots of the fins, cause the air to flow out past the ends E<5> of parts which extend round the fins. The baffles may be fixed by studs extending through the fins has described in Specification 475,887.
Patent GB-1360488-A (GB)
Title: Pallets for hosepipes
IPC: B65D19/08
Filed: 1972-07-14
Abstract: 1360488 Hosepipe racks; load handling pallets, cradles REGENT MGK Ltd and UNIROYAL Ltd 14 July 1972 [19 May 1971] 15690/71 Headings B8M and B8H A pallet for carrying one or more hosepipes comprises a pair of rigid longitudinal members 1, 2 rigidly interconnected, e.g. by bars 3, 4, and pipe supporting members 16 each defining an arc extending transversely of the pallet between the longitudinal members, the pallet also including an end member 11, 13 at each end extending transversely of the pallet above the level of the lowest portion of the members 16. The longitudinal members 1,2 comprise central sections 1a, 2a and end sections 1b, 2b, the end sections 1b being longer than the end sections 2b. The pipe-supporting members 16 are concave plates abutted together to form a continuous trough. The end members are provided to prevent the hosepipe(s) sliding out of the pallet, one of the end members being removable to enable the hosepipe(s) to be slid into the pallet. The pallet is preferably made of metal, the pipesupporting members 16 being made of metal, plastics or canvas. Means, e.g. U-shaped clamps, may be provided to hold the pipes in the pallet, and a wire mesh screen may cover the top and sides of the pallet. Lugs 9 may be provided to link the pallet to a hoisting device.
Patent GB-1457711-A (GB)
Title: Chain pulling apparatus
IPC: B63B21/22
Filed: 1975-04-16
Abstract: 1457711 Hauling apparatus MAOHINENFABRIEK DEVENTER BV 16 April 1975 [19 April 1974] 15711/75 Heading B8B [Also in Division F2] Chain hauling apparatus comprises pairs of opposed pawls 10, and 17, relatively movable along a cruciform sectional guide passage 6 for the chain 7, and alternately operable to engage the chain to respectively haul and hold the chain. The pawls 17 are pivoted at 18 to a fixed frame 1, and have interengaging toothed sector links 27 to ensure synchronous motion under the control of an interconnecting hydraulic ram 20. The pawls 10 operated similarly to the pawls 17 are pivoted to a plate 26 hinged to a yoke 9 reciprocable along guides 8 extending parallel with and longitudinally along the chain guide passage 6, the reciprocation being effected by hydraulic rams 14. The rams 20, 19 controlling the pawl engagement with the chain, and the yoke rams 14, are operated in sequence such that as the pawls 10 engage a chain link, the holding pawls 17 are released from the chain and the rams 14 move the yoke 9 to haul the chain. At the end of the yoke stroke, the pawls 17 are applied to the chain to support it whilst the pawls 10 are withdrawn and the yoke rams retracted ready for the next hauling stroke. For a smoother hauling action, a plurality of yoke arrangements spaced along the chain may be operated in sequence.
Patent GB-724091-A (GB)
Title: Improvements in and relating to plate heat exchangers
Inventor: TAYLOR GEORGE EDWARD
IPC: A23C3/033
Filed: 1952-06-27
Abstract: 724,091. Plate heat-exchangers. CREAMERY PACKAGE MFG. CO., Ltd. June 27, 1952 [June 3, 1951]; No. 15717/51. Class 64 (3). Relates to plate heat exchangers comprising a series of imperforate plates 1 with interposed gaskets 1a (eg. of the kind described in Specification 710,932) defining two series of rectangular, aligned, vertical up-flow and downflow passages respectively for a liquid to be cooled e.g. milk and a coolant such as water, the passages of one series being interposed between those of the other series. According to the invention means are provided to vent air from the series of passages carrying the liquid to be cooled said means comprising an air vent (e.g. 2, 4) in one top corner of each down-flow passage in communication with fluid-carrying ports 3 provided in the other top corner of the up-flow passages which ports serve also as air vents so that vented air is permitted to flow out of the apparatus in a zig-zag path by way of said vents and ports. In the apparatus shown, the vented passages for the liquid to be cooled are indicated by the letters A, C, E and G, the interposed passages for the coolant being indicated by the letters B, D and F. The dotted arrows indicate the flow of vented air.
Patent GB-900532-A (GB)
Title: Fastening austenitic steel turbine and like blades in ferritic steel mountings
IPC: F01D5/32
Filed: 1961-05-01
Abstract: 900,532. Mounting turbine blades. SULZER FRERES S.A. May 1, 1961 [May 9, 1960], No. 15733/61. Class 110 (3). In a blade assembly in which austenitic steel turbine or like blades 2 are inserted in a circumferential groove 3 in a blade-supporting member 1 formed of ferritic steel, the position of each blade is fixed by means of a spacer 4 also formed of ferritic steel, the dimension of each spacer in the circumferential direction being greater than the corresponding dimension of the blade root so that all the spacers when inserted into the circumferential groove form a closed ring and space the blades from one another. In the embodiment shown each spacer 4 is formed with a projection 7 which engages in a groove 6 formed in the end face of the blade root. Each blade together with its associated spacer is introduced into the groove 3 through a widened filling opening 10. The last blade 12 has a root portion of less width than that of the normal blades and the root is also formed with a recess 15. Closing pieces 13 are then inserted and finally a closing piece 14 is entered into the space remaining between the pieces 13 and the recess 15. The invention is applicable to the mounting of stator blades in a stator casing as well as to the mountings of rotor blades as in the embodiment described.
Patent GB-591106-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/20
Filed: 1944-08-17
Abstract: 591,106. Photographic shutters. KODAK, Ltd. Aug. 17, 1944, No. 15762. Convention date, Sept. 4, 1943. [Class 98 (i)] A photographic shutter has an adjustable diaphragm and a setting lever which are interconnected so that the diaphragm leaves cap the exposure aperture prior to the tensioning . operation, a spring-urged member acting on the diaphragm lever being rendered inoperative during the setting movement and allowing a weaker spring to move the 'diaphragm leaves to the position of the desired aperture for the exposure. The diaphragm leaves 4 are pivoted at 5 and have a pin-and-slot connection 7, 8 with the diaphragm ring 9. The latter carries an arm 10 engaged by a pin 12 on an arm 13, the upper part of which is a spring finger running in a series of notches on the cover to determine the aperture setting. A pin and slot 18, 19 connects the ring 9 and a lever 20. The pivot point 21 of the lever 20 is encircled by a spring 22 which urges the lever anti-clockwise, bringing the arm 11 up against the pin 12. The spring 22 is, however, weaker than a spring 24 which moves a member 25 against the lever 20 in a clockwise direction and normally holds the leaves closed. When the setting lever 29 and slide 28 are moved to tension the shutter, a cam projection 38 on the slide engages a pin 39 on the member 25 to swing it aside, in which position it is held by a pivoted latch lever 32, and the spring 22 then swings the diaphragm leaves to the aperture position previously determined by the setting of the arm 13. When the exposure is made and the shutter runs down, a cam 40 engages a pin 41 on the latch 35 and releases the member 25 which closes the diaphragm leaves. The shutter is of the symmetrical opening type with doubleended blades actuated by two oppositely moving concentric rings and a connected master member. Specification 491,885 is referred to.
Patent GB-1225038-A (GB)
Title: 4-CHLORO-1,2alpha-METHYLENE-Delta<4>,<6>-PREGNADIEN-17alpha-OL-3,20-DIONE AND ITS 17-ESTERS
IPC: A61K31/57
Filed: 1968-04-02
Abstract: 1,225,038. 1,2α-Methylene-pregnane compounds. SCHERING A.G. 2 April, 1968 [5 April, 1967], No. 15768/68. Heading C2U. The novel 4-chloro-1,2α-methylene-#<SP>4,6</SP>-pregnadien-17α-ol-3,20-dione and its 17-esters are prepared (1) by treatment of a suitable 6#- hydroxy - 7α - chloro - #<SP>4</SP> - 3 - keto steroid with an acid chloride in the presence of an organic base; or (2) by reaction of a suitable 6#,7α- dichloro-#<SP>4</SP>-3-keto-steroid with an alkali metal halide; or (3) by 4-chlorination of a suitable #<SP>4</SP>'<SP>6</SP>-3-keto steroid; or (4) by 1,2-methyleneation of a suitable 4-chloro-#<SP>1</SP>'<SP>4</SP>'<SP>6</SP>-3-keto steroid. Resulting 17-esters may be hydrolysed and 17-ols esterified. In process (4) the required product may be separated from the also-formed 1,2α : 6,7#-dimethylene compound by reaction with HI in formic acid to give a 4-chloro-1α- iodomethyl-#<SP>4,6</SP>-3-keto steroid and a 4-chloro- 7# - iodomethyl - 1,2α - methylene - #<SP>4</SP> - 3 - ketosteroid, isolation of the former, e.g. by chromatography, and re-formation of the 1,2α-methylene grouping by heating in collidine. 7α - Chloro - 1,2α - methylene - #<SP>4</SP> - pregnene- 6#,17α-diol-3,20-dione 17-acetate is prepared from the corresponding #<SP>4</SP> <SP>6</SP>-6,7-unsubstituted pregnadiene and N - chlorosuccinimide in aqueous perchloric acid. 6#,7α-Dichloro-1,2amethylene - #<SP>4</SP> - pregnen - 17α - ol - 3,20 - dione acetate is prepared from the same starting material and chlorine in trichloroethylene and CCl 4  at -20 C. The steroids of the invention, which are stated to display high gestagenic and ovulation inhibiting activities on oral administration, may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1400004-A (GB)
Title: Tunnel lining
Inventor: THOMAS HAROLD SIDNEY HAMPTON
IPC: E21D11/14
Filed: 1971-06-30
Abstract: 1400004 Lining tunnels &c ENVIRONMENT SECRETARY OF STATE FOR 27 Sept 1972 [30 June 1971] 15795/71 Heading E1F A tunnel-lining segment comprises a metal frame having two curved side members 12, 14 and two end members 16, 18, the inside face of each of the side and end members being so formed that the space defined by the frame tapers towards the axis of the tunnel. The two side members 12 and 14 taper on the inside of the frame so as to be reduced in axial thickness away from the axis of the tunnel. The space is divided by ribs 20, 22 and is filled with concrete either before or after installation in the tunnel. The frame which is of spheroidal-graphite cast iron, is provided with key slots (54), (56), Figures 5 and 6 (not shown), in its side members for the reception of keys (58) to connect axiallyadjacent segments, the keys being retained in position by means of wedges (68), (74). Circumferentially-adjacent segments are connected by means of dogs (82) and dog slots (80), Figure 7B (not shown). A lining ring is completed by the installation at the top thereof of a key segment (84), Figure 4 (not shown), or a folding wedge device (90), Figure 8 (not shown). The segment frame is provided with sealable holes 88 for the injection of grout between the segment and tunnel wall, and blind holes 100 for the attachment of shuttering and/or accessories. In the case where the frame is filled with concrete before installation, the frame is arranged on a correspondinglycurved support (102), Figure 9 (not shown), and filled. The support may have pores and be provided with a pump P to withdraw water from the concrete, and also may be vibrated.
Patent GB-1142768-A (GB)
Title: Stud and socket fastener
IPC: A44B11/25
Filed: 1967-04-06
Abstract: 1,142,768. Stud - and - socket fastenings. UNITED-CARR Inc. 6 April, 1967 [26 April, 1966], No. 15811/67. Heading E2B. A stud and socket fastener, for use particularly as a front fastener for a brassiere, comprises a member 11 having a stud 16 with a notch 18 and undercut portions 17, and a member 1 cut through at 5 and formed with a slot 6 having a large portion 7 to receive the stud, a neck portion between lugs 9 through which the stud can be forced and a portion 8 in which the stud can be retained, the lugs 9 engaging in the undercut portions 17, and inward projections 10 of the members 1 engaging in the notch 18 the notch preferably being deeper towards the base of the stud. Separation may be effected by relative rotation, Fig. 7 (not shown), or by twisting, Fig. 6 (not shown), either of which actions opens the cut 5. The parts are preferably of moulded plastics.
Patent GB-927692-A (GB)
Title: Improvements relating to collapsible liquid containers
Inventor: SAURI SERGIO SOCRATES
IPC: B05B9/08
Filed: 1959-05-08
Abstract: 927,692. Flexible containers. ECLIPSE SPRAYING CO. Ltd. May 9, 1960 [May 8, 1959], No. 15828/59. Class 66. [Also in Group XXIX] A collapsible liquid container, forming part of a portable crop-spraying kit, comprises an inner container, Fig, 3 (not shown), of flexible polyvinyl chloride and an outer container 12 of woven fabric, e.g. " Terylene " (Registered Trade Mark), having reinforcing straps 27 stitched to it. The sides of the outer container are formed as panels stitched along their edges with Terylene thread, the neck 18 being of double-walled construction, and having draw cords 26. The inner container is inserted into the outer container through the neck 18. The container has a harness 32 enabling it to be carried by an operator, and a pipe 44 leading to a syringe 36.