baber/WOPTO huggingface dataset:
Patent GB-962539-A (GB)
Title: Improvements relating to hollow moulded articles
IPC: B28B21/74
Filed: 1959-06-05
Abstract: 962,539. Moulding hollow articles. H. J. FITZPATRICK. (R. W. Emery). Aug. 30, 1960 [June 5, 1959], No. 29802/60. Divided out of 962,538. Heading B5A. In a method of moulding articles having long tubular voids on a core mould 14 from a moulding material, e.g. wood pulp, jute, asbestos, rayon, glass wool, cement, gypsum, coarse clay, and combinations of these with colloidal resins and waxes, a liner 12 of limp material having substantially no stretch longitudinally of the core mould, e.g. pervious textile fabric of wool, cotton, rayon, nylon or asbestos, or impervious polyethylene or polyvinyl chloride, which has at least one open end, is placed over the rigid core mould 14, and a body of the material 10 is formed around the mould, the core mould 14 then being slid out from inside the liner 12, and the liner peeled from inside the article 10 as in Fig. 3. The article 10 may be formed by suction from a slurry of material as in Fig. 1, when a pervious liner must be used, or by packing the annular space between the core mould and an outer mould (not shown), and the liner 10 must have substantially no stretch longitudinally of the core mould. The limit of the article is defined by removable hinged deckle rings 18, and the liner is held in place by hooks 16 while the core mould is withdrawn. If desired, the core mould may be made in two halves which are withdrawn simultaneously from both ends. A hollow container with bottom and side walls may be made using a twopart core mould consisting of a cylinder to form the side walls fitting over a base part, the whole being covered with a limp liner, and the base part remaining in position while the cylinder is withdrawn after moulding so that the liner is not pulled out with the core mould. Where removal of the core mould is difficult a resilient sleeve of metal wire mesh, or dimpled or ribbed sheet metal or plastic, perforated if the vacuum process is used, may be interposed between the core mould 14 and the liner 12 so that the mould can be slid easily out of the sleeve after moulding, and the sleeve, being flexible, can be removed more easily from inside the liner than the solid mould. Again the sleeve may be in two halves. Also a series of interlocking core moulds and liners may be fed through an extrusion head to form a pipe (Fig. 6, not shown). Specification 644,428 also is referred to.
Patent GB-648071-A (GB)
Title: Yeast treatment
IPC: C12N1/04
Filed: 1948-11-16
Abstract: Yeast is pretreated to give a product suitable for extraction of stable, biologically active, proteinaceous substances by admixing diatomaceous silica with an aqueous suspension of yeast, filtering the mixture, and drying and comminuting to a fine powder the resultant filter cake.  In an example 1 gram of diatomaceous silica is added to 2 grams of a yeast suspension (dry basis) and after filtering and pulverizing the mass is dried at 35 DEG C, comminution being continued until moisture equilibrium is reached, the soluble yeast components are then extracted using a 0.1 molar solution of phosphate buffer of a pH of 7.2.
Patent GB-262418-A (GB)
Title: Improvements in the manufacture and production of dyestuffs containing chromium
IPC: C09B45/01
Filed: 1926-11-25
Abstract: 262,418. I. G. Farbenindustrie Akt.- Ges. Dec. 1, 1925, [Convention date]. Azo dyes, soluble chromium compounds of. - Chromium compounds of chromable dyestuffs are made by heating the dyestuffs with salts of trivalent chromium, with or without pressure, in the presence of dissolved mineral acid salts of metals which do not form metal compounds with the dyestuffs, other than salts of sulphonic or carboxylic groups present in the dyestuff molecule, the mineral acid salts being present in quantities at least equal to the weight of the dyestuff employed. The products differ in tinctorial properties from those obtained from the same parent dyestuffs in the absence of the mineral salts. In an example the dyestuff from diazotized 4-nitro- 2-aminophenol-6-sulphonic acid and #-naphthol is heated in an autoclave with a solution of chromium formate and sodium chloride; the product dyes wool in fast black shades, whereas the corresponding dyestuff prepared in the absence of sodium chloride gives a violet brown shade; other salts, e.g. potassium sulphate, may replace the sodium chloride. Specifications 7892/12, 26460/12, 104,045, and 283,979 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) gives a further example in which the dyestuff from the nitrated diazo compound of 1-amino-2-naphthol-4-sulphonic acid and #-naphthol is heated under pressure with a solution of chromium formate and sodium chloride: the product dyes wool in black shades. Lead nitrate and magnesium sulphate are also mentioned as suitable mineral acid salts. This subject-matter does not appear in the Specification as accepted.
Patent GB-631721-A (GB)
Title: Improvements in or relating to dental forceps
IPC: A61C5/85
Filed: 1947-11-10
Abstract: 631,721. Forceps. DEPESTRE, J. P. Nov. 10, 1947, No. 29849. [Class 81(ii)] [Also in Group XXIII] Dental forceps have two arms which are joined at one end and at their other ends 3 are curved at right angles to the main portion and terminate in two enlarged spoon-shaped portions 5. Projections 4 limit the closing movement and a locking ring 7 is slidable' along the main portion.
Patent GB-919814-A (GB)
Title: A process for the electro-deposition of a zinc-titanium-zirconium alloy
IPC: C25D3/56
Filed: 1961-08-18
Abstract: An alloy comprising Zn, Ti 0.3%, Zr 0.3% is made by electrodeposition from a zinc cyanide path containing a water-soluble pertitanate and a water - soluble perzirconate (see Group XXXVI).
Patent GB-1155853-A (GB)
Title: Releasably Lockable Joint
IPC: F16C11/10
Filed: 1966-07-04
Abstract: 1,155,853. Rod joints. AMERICAN AIR FILTER CO. Inc. 4 July, 1966 [28 July, 1965], No. 30000/66. Heading F2G. [Also in Division E2] A releasable joint for a pair of hollow, rectangular cross-sectioned members 3 and 4 is provided by a spring-loaded locking member received in their open ends. The locking member consists of an elongated bar or tongue fitting snugly within the structural members, having locking abutments 9 and 11 projecting from one side and compression springs carried in recesses in the opposite side. The members are locked together in end to end relationship by the abutments being urged into corresponding apertures 31 and 32 in a side wall of each member by the springs acting against the inside of the opposite wall. The abutments are displaced from these apertures by manual pressure on their outer faces or by pulling a detachable gripping ring screwed into the locking member, releasing the joined members 3 and 4 which may then be drawn apart.
Patent GB-1527415-A (GB)
Title: Time-controlled electrical switching apparatus
IPC: G05B19/07
Filed: 1977-07-15
Abstract: 1527415 Automatic control LONDON ELECTRICITY BOARD R E EDMUNDS and W G PEGRAM 15 July 1977 [19 July 1976] 30013/76 Heading G3N [Also in Division H2]  A time-controlled switching apparatus is responsive to a light-sensitive switch which senses the onset of dusk to initiate a programmed sequence of operations simulating the occupation of domestic premises. At dawn, the switch resets a device providing the programme and modifies the programme or selects an alternative. The device may comprise a motor-driven cam assembly, the holes of which are arranged to provide different programmes, or an electronic counter, responsive to a variable frequency clock-generator, enabling control-gates. In the electronic device, the light-sensitive switch can modify the clock frequency of the gating sequence. It is stated that the speed of the motor driving the cam assembly may be varied.
Patent GB-686316-A (GB)
Title: Polymerization of monoalkylethylenes
IPC: C07C2/22
Filed: 1949-11-25
Abstract: Monoalkylethylenes are polymerized by first admixing the monoalkylethylene with aluminium bromide solution and a promoter, maintaining the instantaneous concentration of unpolymerized monoalkylethylene and fresh aluminium bromide at a low value during admixture of monoalkylethylene and aluminium bromide solution and then in a second step admixing monoalkylethylene with this polymerization reaction mixture at a rate not greater than 4 moles of olefin per minute per mole of aluminium bromide. Specified monoalkylethylenes are propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene and 1-decene.  The aluminium bromide solution is prepared by dissolving the bromide in such solvents as saturated hydrocarbons, e.g. ethane, propane and n-butane.  The promoter may be introduced into the mixture in any manner desired and while hydrogen bromide is preferred, propyl-, isopropyl-, butyl- and isoamylbromoalkanes may also be used.  The catalyst solvent may also be used as a diluent for the olefin.  The ratio of olefin and aluminium bromide solution in the first step of the reaction should preferably not exceed 20 moles of olefin per mole of aluminium bromide.  The polymerization mixture may be stored at low temperatures between the first and second stages of the reaction, and only olefins need be added in the second step, which olefins need not be the same as that used in the first stage.  On completion of the second step the ordinary processes for inactivating the aluminium bromide, removing solvent and diluent and recovering polymer may be used, e.g. admixing the reaction mixture with water, alkali, alcohol, or alcohol and water to inactivate the catalyst, settling, filtering and clarifying with a clay such as bentonite.  Specification 668,466 is referred to.
Patent GB-819377-A (GB)
Title: Improvements in or relating to the slitting of tubes
Inventor: AYTON WILLIAM RICHARD
IPC: B23D21/02
Filed: 1956-10-05
Abstract: 819,377. Shearing; angular bending; making electric components. BELLING & LEE Ltd. Oct. 4, 1957 [Oct. 5, 1956], No. 30382/56. Classes 83 (2) and 83 (4). A slot is formed in the end of a tube by the use of a blade moved axially of the tube and arranged to cut a strip of material from the side of the tube. In a tool for producing four slots in the end of a tube, the tool comprises a blade 17 of cruciform section secured to a shaft 13, a socket 3 having a bore 12 for receiving the shaft 13, and a disc 5 made up of four quadrants and normally secured by screws 32 in the socket 3. The tube is a push fit into the central aperture 24 of the disc 5 and the strips of material cut and bent out by the blade 17 are accommodated by recesses 20 in the disc 5. Steps 19 in the cutting edges of the blade 17 serve to curl the strips. The tube is supported in a holder 33 and the blade may be operated in a hand-press or in an automatic machine. The tool may be used in the making of connectors as described in Specification 649,739, [Group XXXVI]. The end of the tube is slotted by the tool and the cut metal is formed into curls, the upstanding intermediate parts are bent towards each other by the action of a punch 38, Fig. 1d, having a tapered bore 39 and the curls are severed from the tube by a hollow punch 40, Fig. 1e. In an automatic machine for making connectors as described above, individual tube lengths may be held in work-clamps and transferred from work-station to work-station or the tube may be fed axially, all operations be carried out in succession on the tube and the formed tube length severed.
Patent GB-1384800-A (GB)
IPC: A61M1/10
Filed: 1972-06-29
Abstract: 1384800 Resuscitators H KEHLENBACH 29 June 1972 [29 June 1971] 30435/72 Heading A5R A resuscitator comprises an expandable bag 1, and a flexible tube 6 connecting the bag to a means for supplying a gaseous or liquid medium under pressure to the bag 1 and means for rhythmically varying the said pressure, whereby on introducing the bag into the human oesophagus to a level adjacent to the heart the bag may be rhythmically expanded and contracted thus providing a massaging action to the heart. The means for supplying a medium under pressure comprises a pump 4, pressure monitoring means 3 and a valve 5 operable to isolate the pump from the tube 6. The means for rhythmically varying the pressure in the bag 1 comprises a second expandable bag 2 also connected to the tube 6, the second bag being manually compressible so as to provide rhythmic variations in pressure for expanding and contracting the first bag.
Patent GB-578150-A (GB)
Title: Improvements relating to electric discharge lamps
IPC: H01J61/72
Filed: 1939-11-21
Abstract: 578,150. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. Nov. 21, 1939, No. 30501. Drawings to Specification. [Class 39 (i)] A mercury vapour discharge lamp with an inert gas-filling to operate at low pressure and low voltage, say 24 volts, has a separately heated cathode and the product of the interelectrode distance in centimetres by the pressure of the filling in millimetres lies between 2 and 35. The electrode may be separate helices, or the anode may be a gauze cylinder surrounding the cathode. The cathode may be a tungsten helix enclosing a rod of barium strontium silicate. The radiation is mainly ultraviolet, and may be employed as such, the bulb being of glass opaque to ordinary light, or the bulb may be coated with fluorescent material. The voltage of the cathode heating circuit is low, say 4 volts, as compared with the arc voltage.
Patent GB-154074-A (GB)
Title: An improved shut-off valve
IPC: F16K3/06
Filed: 1919-12-06
Abstract: 154,074. Macleod, A. W. Dec. 6, 1919. Rotary disk valves; seats.-A rotary disk valve comprises a flat and very thin T-shaped element A<1> pivotally mounted by means of a shaft B provided with an external handle C. The casing is made in two parts bolted together, one part being provided with a stuffing-box for the spindle, as shown. The valve A<1> is pressed towards a fixed seating D by a spring-operated tubular member E which forms an adjustable or yielding seating. Specifications 6465/84, 12154/91, [Class 72, Iron &c.], 5841/05, and 21159/11 are referred to.
Patent GB-731712-A (GB)
Title: Improvements in or relating to a windshield wiper
IPC: B60S1/38
Filed: 1952-12-02
Abstract: 731,712. Windscreen cleaners. OISHEI, J. R. Dec. 2, 1952 [Dec. 3, 1951], No. 30567/52. Class 138 (1). A windshield wiper comprises a flexible blade conformable to the windshield surface, a mounting super-structure extending longitudinally of the blade and above the back thereof and having relatively movable parts for connecting the blade to a wiper arm, the said structure being enclosed by a weather bonnet. As shown in Figs. 2 and 3 the blade comprises a flexible wiping edge 12, a body portion 10 and an anchoring bead 9. Slidably received between the bead 9 and portion 10 are the side members of a flexible holder 8 connected together by cross stages passing over the bend. The mounting superstructure of pressure distributing frame comprises a primary yoke 6, connected by a clip 14 to the arcuate end 15 of the wiper arm 4, and two secondary yokes 7 pivoted to the ends of the yoke 6 and having their ends slidably engaging the holder 8 as at 13. Sliding movement between the arm end 15 and the clip 14 enables the wiper to bed itself squarely on the windshield. The weather bonnet 16<SP>1</SP> is integral with the blade and its side walls 22 are folded around the pressure distributing frame and clamped together by aligned clamps 18 engaging marginal beads 19 on the walls. These clamps provide lateral support for the top of the bonnet and adjacent the clip 14 serve to secure it to the yoke 6. The open ends of the bonnet are closed by end walls integral with the bonnet but preferably as shown in Fig. 4 a plug 23 is interlocked in recesses 24 in the holder 8 or directly to a bonnet rib 25 which engages a groove in the plug. During the flexing of the wiper the side walls 22 will buckle and the bonnet will also be rotatably distorted owing to the blade assuming an inclined position at the start of each wiping stroke, so as to break up any ice forming thereon. In a modification, Fig. 7, the bonnet 16 is a tubular sleeve integral with the blade and is tapered towards its ends. A medial neck opening having a bead is provided to snugly fit about the clip 14. Catches struck out from sides of the clip engage the neck head or a metallic collar fitting thereover and around the clip. The bonnet may be detachable from the blade as by being attached thereto by separable fasteners, instead of being moulded thereto. The bonnet protects the pressure distributing frame from wet snow which would otherwise clog the moving parts and on freezing would render the frame rigid so that the blade would then be useless for wiping a curved windscreen. Reference has been directed by the Comptroller to Specifications 666,474, 679,540 and 702,849.
Patent GB-1188258-A (GB)
Title: A Camera Shutter with an Electronic Timing Device Accommodated in the Shutter Housing
IPC: G03B9/58
Filed: 1968-06-27
Abstract: 1,188,258. Electronic shutter controls. PRONTOR-WERK ALFRED GAUTHIER G.m.b.H. June 27, 1968 [July 29, 1967], No.30623/68. Heading G2A. Components of an electronic shutter timing device are supported on a plate 25 itself accommodated in a recess 2a in a cylindrical wall portion 2 of the shutter housing. The wall portion 2, which is preferably of plastics material and made by injection moulding, can be attached to the base plate, which carries the shutter-driving mechanism, by screws, or by lugs 2g. The peripheral recess 2a is machined out of the wall 2. The plate 25 is of coated hardboard, made as a printed circuit so as to inter-connect the electronic components mounted on it. These comprise resistors 21, transistors 22, and one or more capacitors 23, forming a timing circuit for controlling the shutter. The plate 25 is curved to the circumferential shape of the wall 2, and secured to it by screws 26. The wall may have a channel 2d for receiving leads connected to contact plates 27, 28 secured in the wall, which co-operate with a contact slider 30 displaceable by an exposure-setting member. A further channel 2e receives all the other conductor leads.
Patent GB-925250-A (GB)
Title: Improved tufted brush with moulded bristles and method of manufacturing same
IPC: B29C45/26
Filed: 1959-09-08
Abstract: 925,250. Injection-moulding brushes. S.A. BRUSH CO. Ltd. Sept. 8, 1959 [Sept. 17, 1958], No. 30645/59. Class 87(2). [Also in Group XXIII] A brush having bristles integrally formed with the back or handle is moulded by injecting synthetic thermoplastic material into a die including a back-forming portion and a series of apertures opening therefrom in which are rigidly secured pins of such shape that channels tapering away from the back-forming portion are formed in the apertures. A scrubbing brush is moulded in a three-part mould comprising top plate 4 having recesses 27, 28, which define the handle, stripper plate 15, and lower plate 16 having channels 5, 7 in which are located fixed pins 6, each having tapering channels in its periphery. After injection plate 4 is raised and bristles 2, especially the longer ones 23, keep the brush in lower plate 16. Plate 15 is then raised so that a recess 74 thereon engages edge 25 on handle 26 and the brush is lifted clear. The upper die plate may contain the bristle cavities and other brushes formed according to the invention are nail, tooth, and toilet brushes, the latter having bristles on both sides of the backing member.
Patent GB-362087-A (GB)
Title: Improvements in and connected with taps or cocks fitted with locks
IPC: F16K35/06
Filed: 1930-10-13
Abstract: 362,087. Valve accessories.' ROSS, COURTNEY & CO., Ltd. and BROOKMAN, L. F., 25, Ashbrook Road, Upper Holloway, London. Oct. 13, 1930, No. 30652. [Class 135.] Locks, applications of ; combined with electric switches.-A combined petrol tap or cock and lock with means for short-circuiting the ignition circuit of an internal-combustion engine comprises a casing of two parts 1, 2 the part 1 having the inlet and outlet passages 3, 4, and the valve 10, and the other part 2 being furnished with a rotary cylinder lock 19 and switch 23, 26. The petrol chamber 8 is isolated from the lock chamber bv a flexible diaphragm 11 on which the valve 10 is mounted. The valve is moved to its closed position by a cam element 17 on the lock cylinder preferably furnished with a leaf spring 18. The short-circuiting switch comprises a contact 26 on the cam element 17, which is faced with an insulating disc 27, and a spring contact 23 mounted in insulating material 21 furnished with a metal plug 22 and an insulating cap 24. Contact with the magneto lead is made. between a metal washer 25 and the metal plug. A simpler form of contact arrangement with rotary contact plate and fixed contacts is described for use with coil ignition.
Patent GB-844161-A (GB)
Title: Improvements in or relating to protective devices for 3-phase a.c. circuits
IPC: H02H11/00
Filed: 1956-10-08
Abstract: 844,161. Protective cut-out arrangements. TELEMECANIQUE ELECTRIQUE. Oct. 8, 1956 [Nov. 2, 1955], No. 30674/56. Class 38 (5). For protection against incorrect phase rotation or the failure of a phase in a three-phase system, the winding Z of a relay is connected between a neutral point N formed by three equal impedances Z<SP>1</SP> starconnected to the three phases L1, L2, L3 and the junction point M of a resistor R and an impedance Z<SP>11</SP> connected in series between two of the phases, the impedance Z<SP>11</SP> having a value equal to that of the resistor R but an argument of #/3. Under normal conditions the voltage between M and N is equal in magnitude to the phase-to-earth voltage of the system and the winding Z is fully energized, but with incorrect phase rotation no voltage exists between M and N and with failure of a phase this voltage would not exceed one third of the normal voltage between phases. The impedances Z<SP>1</SP> may be inductive, capacitative or resistive and the impedance Z<SP>11</SP> may be either inductive or capacitative. The relay Z may be energized through a full-wave rectifier and its contacts may control an electromagnetic switch and a warning circuit.
Patent GB-652724-A (GB)
Title: Improvements in wire stitching mechanism
Inventor: NASMITH JOHN IRVING
IPC: B27F7/21
Filed: 1948-11-26
Abstract: 652,724. Stapling. VICKERS-ARMSTRONGS, Ltd. Nov. 26, 1948, No. 30729. [Class 89(iii)] In a stapling machine in which several lengths of wire ware bent to form staples by co-operating outside and inside formers 1, 6 and are then driven by a driver 7 slidable within the outside former 1, the staple is supported during driving by two independently movable members 3, 6 which support the legs and the crown of the staple respectively. In operation, the wire w supported on the crown support and inside former 6 is bent to shape by the outside former 1; then the crown support 6 is coupled to the driver 7 by a spring- pressed plunger 23 engaging a notch 7a. a plunger 13 being disengaged by a pin 15 on the outside former 1 acting through a lever 16, 18, and the leg support 3 pivoted at 2 on the outside former is engaged between the staple legs by engagement of a projection 3a with a spring-pressed plunger 5. Subsequent movement of the crown support 6 disengages by its bevelled end 6b the leg support 3 from the staple and is then itself disengaged by partial rotation of an eccentric pin 10a engaging a slot 11 and operated by the machine drive, to allow the leg support to return and to be finally disengaged by the completion of the driving of the staple.