baber/WOPTO huggingface dataset:
Patent GB-404409-A (GB)
Title: Improvements in emulsifying apparatus
IPC: A01J13/00
Filed: 1932-09-22
Abstract: Apparatus for preparing emulsions, e.g. emulsions of butter with milk to form artificial cream, comprises a working piston fitting tightly in a pump cylinder to which the substances to be emulsified are fed from a hopper, <PICT:0404409/III/1> and having in communication with the head end of the said cylinder a non-return valve admitting the hopper contents and a discharge outlet comprising a chamber with a tightly fitting plug mounted detachably therein, one or more narrow grooves formed along the exterior surface of the plug or the interior surface of the chamber forming an emulsifying passage.  According to the arrangement shown, the pump cylinder a is arranged vertically on a frame b which can be clamped to a suitable support.  The piston f is reciprocated vertically by a handle e<2> operating through a link g and lever e.  The inner end of the piston is fitted with a suitable packing cup f<1>.  The contents of the hopper h are drawn into the cylinder through a ball-valve i and are forced through a narrow passage j<1> into the outlet chamber j which contains a tightly fitting plug k of German silver or like alloy having narrow grooves k<2> on its surface.  The plug is retained in position by a nozzle forming nut j<2> pressing against a flange k<1> of the plug.  The inner end of the plug has a chamfered face k<3> connecting with the groove k<2> while the other end of the groove opens into a cross-notch k<4> on the lower end k<1> of the plug (see Fig. 2).  The groove or grooves are preferably of V-section, about one hundredth of an inch deep.
Patent GB-664889-A (GB)
Title: Boules and methods of making same
IPC: C30B11/10
Filed: 1949-10-13
Abstract: Finely divided TiO2 of a particle size not exceeding 0.5 micron, for use as a starting material for the manufacture of rutile single crystal boules, is prepared by calcining ammonium-titanium-sulphate at 850 DEG C to 1100 DEG C, preferably 850 DEG C to 900 DEG C for one to two hours, until the ammonium and sulphate are removed by volatilization and the residual TiO2 has the rutile crystal structure.  To prepare the ammonium-titanium-sulphate, undiluted pure titanium tetrachloride is added to a saturated solution of pure ammonium sulphate, whereupon the double ammonium-titanium-sulphate precipitates. Alternatively it may be prepared from other titanium salts, e.g. by admixing titanyl sulphate with an equal amount of water and adding this to the ammonium sulphate solution.  The precipitate is recovered and purified by recrystallization, i.e. by dissolving it in dilute sulphuric acid and then adding solid ammonium-sulphate to the purified ammonium-titanium-sulphate to crystallize it from the sulphuric acid solution.
Patent GB-469637-A (GB)
Title: Improvements in or relating to the manufacture of thin sheets, films and the like products from cellulose esters
IPC: C08J7/04
Filed: 1936-09-29
Abstract: Thin sheets, films, and like products of cellulose esters particularly cellulose formate are rendered impermeable to moisture by treating them with a swelling-agent having a solvent action on the sheets together with a non-solvent diluent, and then, preferably without removing the absorbed swelling-agent, coating them with a varnish containing water-repelling substances such as waxes, or resins, and, if desired, swelling agents for the sheets.  Solvent swelling-agents which may be used are formic acid, pyridine, furfurol, lactic acid, glycol, or ethylene chlorhydrin.  Depending on the particular cellulose ester of which the sheet consists, the non-solvent diluent may be acetone butyl acetate, or toluene.  After the swelling treatment, the sheets are coated with the waterproof varnish.  This may contain cellulose esters, resins, softeners, and waxes dissolved in acetone, butyl acetate, or ethyl acetate and may be applied by dipping, spraying, or painting.  Sheets of cellulose acetate or other cellulose ester besides the formate may be treated. In an example, a cellulose formate sheet is drawn through a mixture of formic acid and butyl acetate, and is then coated with a varnish containing nitrocellulose, Toplast, a phenol ether, butyl acetate, formic acid, shellac, and alcohol.  A cellulose acetate sheet is pre-treated with a mixture of toluene, alcohol, and formic acid. It is dried and then coated with a varnish containing nitrocellulose, shellac, Toplast, Resenoplast, an alkyd resin, tricresyl phosphate, alcohol, ether, toluene, and formic acid.
Patent GB-318261-A (GB)
Title: Improvements in and relating to the suspension of electric discharge apparatus
IPC: H01R33/975
Filed: 1929-08-30
Abstract: 318,261. British Thomson-Houston Co.., Ltd., (Assignees of Gunther, C. A.). Aug. 31, 1928, [Convention date]. Vacuum tubes.-A shock-absorbing mount for electric discharge apparatus comprises separate elastic tubular members 4 distorting in shape on being jarred and with their longitudinal axes inclined or normal to one another to dissipate vibrational energy in several directions. Resilient means such as a block 6 of sponge rubber prevents excessive extortion of the member 4, as when an aeroplane carrying the apparatus lands. The tubes 4 are riveted to two base plates 3, 5, the plate 3 carrying valve holders 2. The members 4 may be formed by cutting rubber tubing or by rolling up rubber strip. Relative movements of the valves 1 are prevented by a block 7 of sponge rubber formed with holes to surround the valves and secured to a non-magnetic metallic plate 8 by rivets 10 which also pass through supporting-brackets 9 fixed to the base 5. Flexible lead-in conductors 11 are employed. The Specification as open to inspection under Sect. 91 (3) (a) comprises also members 4 in the form of other hollow bodies such as spheres. This subject-matter does not appear in the Specification as accepted.
Patent GB-748914-A (GB)
Title: Improvements in or relating to preparation of 21-halo steroids
IPC: C07J75/00
Filed: 1953-09-25
Abstract: 21-Bromopregnanes and allopregnanes and derivatives thereof are obtained by treating a 17a  - hydroxy - 20 - keto - pregnane or allopregnane with bromine.  If desired the starting material may contain a 5-6 double bond which is first saturated with halogen prior to the bromination.  Examples disclose the preparation of 5,6,16,21-tetrabromo-pregnane-3b , 17a -diol - 20 - one - 3 - monoacetate, 16 - bromo - 21- iodo - 5 - pregnene - 3b , 17a  - diol - 20 - one - 3-monoacetate, 16,21 - dibromopregnane - 3b , 17a  - diol - 20 - one - 3 - monoacetate, 16,17-oxido - 5 - pregnene - 3b , 21 - diol - 20 - one - 21-monoacetate, 21 - bromopregnane - 3,17a  - diol-11,20 - dione and its 3 - monoacetate, 21-bromopregnane - 3a , 17a  - diol - 3,20 - dione and its 3-acetate, 21-bromo-pregnane-3a , 17a -diol - 11,20 - dione, and 21 - bromopregnane-3a , 17a  - diol - 12,20 - dione 3 - acetate.  16 - Bromo - 17a  - hydroxypregnenes, pregnanes, allopregnenes and allopregnanes are obtained by treatment with hydrogen bromide of the corresponding 16,17-oxido compounds.
Patent GB-1008479-A (GB)
Title: Flexible tanks
Inventor: SCOFIELD PHILIP JOHN
IPC: B65D90/04
Filed: 1963-07-04
Abstract: 1,008,479. Flexible tanks. MARSTON EXCELSIOR Ltd. June 29, 1964 [July 4, 1963], No. 26531/63. Heading B8D. [Also in Division F2] A flexible tank comprises an envelope 1, having slits in one of its sides closable by sliding clasp fasteners covered by flaps, Fig. 1 (not shown), and a lining 6 of polyethylene film which may be inserted into the envelope 1 through one of the slits and secured by clamps between plates 22, 23, forming part of a filling adaptor. The envelope 1 is of rubber fabric, and has annular metal fittings 17, 20 banded to its outer and inner surfaces respectively. The lining 6 may be of polyethylene, polypropylene or nylon; it is formed from a flattened tube, the open ends of the tube being sealed to form a rectangular bag which is reinforced at its corners. An outlet pipe 26 is welded to the plate 23 and a perforated baffle 30 riveted to the plate 22. After insertion in the envelope 1 the members 1 and 6 are clamped together at their corners.
Patent GB-444200-A (GB)
Title: Improvements in or relating to electric heaters
IPC: A47C21/04
Filed: 1934-09-15
Abstract: 444,200. Electric resistance heaters. WORTHINGTON, W. J., Wynglen, Deepdene Avenue, Dorking, Surrey. Sept. 15, 1934, No. 26546. [Class 39 (iii)] An electric heater comprises a resistance heating element 10 surrounded by a perforated member 11 made of porous absorbent material. The member 11 mav itself be contained in a perforated casing 12. The heater may be provided with a protective cage 16. The member 11 may be formed of asbestos, cork, clay, or porcelain. Thermostatic controls for the element 10 may be provided.
Patent GB-1202633-A (GB)
Title: Electrolytic surface treatment of aluminium or its alloys
Inventor: AIKEN JOHN KEMPTON
IPC: C25F3/04
Filed: 1968-06-04
Abstract: 1,202,633. Electrolytic etching with molten electrolyte. J. K. AIKEN May 30, 1969 [June 4, 1968], No. 26649/68. Heading C7B. A surface of Al or Al base alloy is etched in an electrolyte comprising molten Ca (NO3)2 4H2O using A. C. The counter-electrode may be Al, C or stainless steel. A minor proportion e.g. up to 5% of one or more nitrates of Fe, Cr, Al, Cd, Zn, Co, Ni, Mn, and Cu and/or water may be added to the electrolyte. Oxidizing agents, such as up to 5% of chromic acid or potassium permangan- - ate, may also be added. A current density of 0À25- 1À5 amp/sq in at the Al surface produces a matte white etch. The voltage may be 15 volts and the electrolyte temperature 40-100‹C. Prior to etching, the surface may be cleaned first in 5% aqueous NaOH then 30% HNO3. The etched surface may be subsequently anodized in H2 SO4 or lacquered.
Patent GB-962985-A (GB)
Title: Recovery of hydrocarbons from subterranean shale formations
IPC: E21B43/247
Filed: 1960-08-02
Abstract: <PICT:0962985/C4-C5/1> In a method of producing fractures in an impervious underground stratum of shale 10 prior to its distillation, a bore-hole with a lining 16 is sunk into the shale and a mixture of a combustible gas or vapour and air, supplied through a pipe 26, is burnt in a burner 38 positioned in a hole 22 surrounding the lower end of the lining 16, the temperature combustion being controlled by the supply of an inert gas, e.g. cooled combustion gases, through a pipe 28 to a maximum of 1800 DEG  F. and the temperature of the combustion gases withdrawn from the hole 22 through lining 16 by the supply of an inert gas, e.g. cooled combustion gases, through a pipe 30 to below 500 DEG  F., the burning being continued until a fracture system is created in the shale.  The hot combustion gases withdrawn through the lining 16 may be passed through coolers 42 and 52 for use as the inert gas supplied through pipes 28 and 30 or through valved pipe 60 out of the system.
Patent GB-449153-A (GB)
Title: Improvements in shaving devices
IPC: B26B21/38
Filed: 1934-09-17
Abstract: 449,153. Shaving-machine. FRIDMANN, D., Vienna. Sept. 17, 1934, No. 26722. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 16, 1935]. [Class 131] A shaving-machine comprises a hollow member 1 toothed at opposite diagonal edges 12 and containing a pair of toothed cutting plates 2. The plates 2 are each provided with a central recess in which is fitted a frame 5 adapted to be engaged by an eccentric pin on the end of a driven shaft mounted in the handle 9. The shaft is driven either from a motor carried from the neck of the user, or by a foot-operated mechanism.
Patent GB-221376-A (GB)
Title: Improvements relating to line-locking devices for typewriting machines
IPC: B41J29/66
Filed: 1923-10-26
Abstract: 221,376. Salter & Co., Ltd., G., and Bache, E. W. Oct. 26, 1923. Line-locking devices.-In devices of the kind in which the line-locking stop actuates a member for obstructing the universal bail, and thereby preventing the type-levers from completing their stroke, the member is arranged to prevent engagement of mating projections and recesses formed on the universal bail and the framework, or vice versa. A member 11, mounted to slide on pins 13 on a bracket 12, is connected to a lever 9 engaging an arm 8 on a slide 3 in the path of the linelocking stop 1. The universal bail 16 is provided with a plate 17 having projections 19 adapted to enter apertures 21 in the bracket 12. When the slide 3 is operated, the member 11 is moved to the right, and ears 22 thereon cover the apertures 21, and obstruct the universal bail. The slide 3 and member 11 are provided with returning-springs 7, 15.
Patent GB-191453-A (GB)
Title: Improvements relating to presses for the production of bricks, briquettes, blocks and the like
IPC: B30B11/10
Filed: 1921-10-10
Abstract: 191,453. Sutcliffe, E. R., and Sutcliffe, Speakman, & Co., Ltd. Oct. 10, 1921. Rotary-mould-table machines. - In a press for moulding bricks &c. as described in Specification 14937/02, the first-motion shaft 1 is geared directly to a main shaft e, which actuates the press elements, and to a countershaft b which operates the ejecting mechanism. The latter comprises an ejecting plunger i connected to a lever d, disposed wholly beneath the machine frame and reciprocated by a cam on the shaft b. The weight of the cross-heads h, h<1> is counterbalanced by an adjustable weight f<2> placed at one end of a lever f, the other end f<1> being attached to the bottom of the cross-heads by bifurcated arms g. The ejected brick &c. is removed from the mould table by a pusher block m<2> sliding en an arm m<5> and operated through links and levers l, m, m<1>, m<4>, from a cam k on the main shaft e. Two presses arranged as shown in Fig. 5, may be operated by a single first-motion shaft c, and supplied with material from a common pan o having radial stirrers o<1> driven from the shaft c.
Patent GB-713461-A (GB)
Title: Improvements in and relating to thread tensioning apparatus
Inventor: ATKINS ARTHUR AMBROSE
IPC: B65H59/20
Filed: 1951-11-16
Abstract: 713,461. Thread-tensioning devices. COURTAULDS, Ltd. Nov. 14, 1952 [Nov. 16, 1951; May 30, 1952], Nos. 26873/51 and 13767/52. Classes 120(2) and 142(1) A thread-tensioning device comprises two surfaces or two sets of surfaces between which a thread can pass combined with a guide for the thread mounted at the free end of a cantilever spring which urges one surface or one set of surfaces towards the other surface or set of surfaces so that changes in tension of the thread which has passed between the two surfaces or sets of surfaces and then over the guide, vary the pressure of the spring on such surface or surfaces to make compensating changes in the thread tension. As shown a support block 1 carries a pigtail guide 2 and a channel frame 3 on which are mounted two pins 4 and 5. The pin 4 supports a pretensioning device 6 of normal construction and the pin 5 supports an automatic compensating tensioning device 7. The upper disc 7a is fixed to an adjusting knob 8 and the lower disc 7b bears against cantilever spring 9 fixed to the frame 3 by screws 10. A wad of damping grease 13 is placed between spring 9 and frame 3 and the spring 9 has a V-shaped guide 12 at its free end. Increase of tension in thread 15 at the output side of the device causes the spring 9 to be depressed and relievethe pressure on the lower disc 7b thus compensating for the increase in tension in the thread. The lower disc 7b may be mounted directly on the spring 9 and the double disc tensioning device 7 may be replaced by a gate-type of tensioning device. Instead of grease 13 other damping means, e.g. a dash-pot may be provided. Specification 2798/14, [Class 120(ii)], is referred to.
Patent GB-750181-A (GB)
Title: Improvements in or relating to valves
IPC: F16K31/143
Filed: 1953-10-01
Abstract: 750,181. Valves. UNITED STATES METALLIC PACKING CO., Ltd., and STEPHENS, J. April 29, 1954 [Oct. 1, 1953], No. 26903/53. Class 135. The portion of a lift valve closure member 9 which lies within the seat orifice is provided with a passage 12 leading to a recess of greater cross-sectional area than the seat orifice, and, this recess houses a piston 14 against the upper face of which the end of the valve operating spindle 19 engages. As the member 9 is capable of limited movement relatively to the piston, pressure fluid entering the recesses presses the valve firmly on to its seat. Spindle 19 screws through a cover 5 on the valve body, the cover being held in position by a split-pin 6. A cover 15 held in position by a key 16 covers the recess in the member 9. Sealing rings 11, 18 are provided on the peripheries of member 9 and piston 14, respectively. A passage 23 through cover 5 puts the upper faces of member 9 and piston 14 at atmospheric pressure.
Patent GB-500813-A (GB)
Title: Improvements in and relating to metal casement windows
IPC: E05F17/00
Filed: 1937-10-07
Abstract: 500,813. Window regulators. COPPLE, H. P., and ROWE BROS. & CO., Ltd. Oct. 7, 1937, No. 27157. [Class 20 (iii)] A window regulator for sashes pivoted on horizontal pivots comprises a pair of toggle levers 9, 10, one pivoted to the frame and one to'the sash between the pivot and upper rail, the lengths being such that when closed, the levers are in alignment, or preferably flexed beyond the dead centre to prevent opening by pressing the sash. A number of sashes may be operatively connected to the toggles by a link 7, to the end of which the upper toggle link is pivoted at 8. The lower toggle link may have a handle 14 and a knucklejoint 13 is provided at the pivot of the levers. A finger released, pawl may be provided at the joint 13 to prevent opening.
Patent GB-425627-A (GB)
Title: Improvements in or relating to incubators
IPC: A01K41/00
Filed: 1933-10-03
Abstract: 425,627. Hatching - appliances. STEPHENS, H. W., St. Leonards Court, Upton-St.-Leonards, near Gloucester. Oct. 3, 1933, No. 27187. [Class 5 (ii)] An incubator comprises a plurality of egg trays 2 tiltably mounted therein, two fans 4, 5, one in the upper part and the other in the lower part thereof, and a driving shaft 6 common to the fans. The trays 2 are pivoted at 21 to horizontal links 12, fixed to the wall of the incubator, and at their outer ends to rods 14 provided with handles 20 and ratchets 18 coacting with pawls 19 for adjustment of the inclination of the trays. The shaft 6 may be driven by an electric motor 9 ; and the incubator also comprises air apertures 10 and steam or hot water coils or electric heating elements 3 which may be thermostatically controlled. Additional fans may also be provided in the upper or lower part of the incubator or both, the extra fans being provided on the same spindle or on additional vertical spindles.
Patent GB-1019286-A (GB)
Title: Improvements in or relating to a male incontinence clamp
IPC: A61F2/00
Filed: 1964-07-01
Abstract: An incontinence clamp for the penis comprises a strip of flexible material, two reinforced pads being removably adhered to the strip so that the strip may be wound about the penis with one of the pads compressing the urethra.  As described with reference to Fig. 2 (not shown) the pads B, C reinforced with aluminium are provided with barbs so that the pads adhere to a felt or woven layer 4 on the strip.  The pad B is particularly shaped to compress the urethra and the strip itself of fabric or plastics material, has barbs at one end on its outer surface which in use secure the free end of the strip.
Patent GB-384019-A (GB)
Title: Improvements in or relating to exercising apparatus
IPC: A63B22/02
Filed: 1931-09-30
Abstract: 384,019. Exercising-apparatus. ALLEN, T. G., 6, Albert Court, South Kensington, London. Sept. 30, 1931, No. 27268. [Class 132 (i).] Apparatus for performing walking or running exercises of the type comprising a powerdriven endless belt C, consists of a portable frame A which carries the endless belt and an electric motor B. The hand-bars A<5> are tubular and at one part are provided with a sliding piece D<2> connected by a cable to the arm of a rheostat D by which the motor is controlled. A mileage indicator A<6> is also mounted on the hand-bars and driven by the endless belt. Preferably also a speedometer is provided. The band is supported on its upper run by antifriction rollers A<3> or a smooth surface, and an opening A<2> is provided in the frame of sufficient length to accommodate the stride of the user. The frame may be mounted on wheels, castors, &c. for ready movement from one place to another.
Patent GB-202198-A (GB)
Title: Improvements in chucks for use in winding wire on the cores of electro-magnets
IPC: H01F41/06
Filed: 1922-10-09
Abstract: 202,198. Brandes, Inc., C., (Assignees of Bergman, E.). Aug. 11, 1922, [Convention date]. Chucks; sockets.-A chuck for use in winding wire on the cores of electromagnets has a rotatable member with means for receiving and positioning the core, and an apertured securing-member, which is movable into positions so as to allow the core to be inserted and then clamped in position. A rotatable fan-plate 3 is recessed or provided with a slotted nest-plate 5 to receive one limb of an angled core 7, the other limb of which projects coaxially with the nest-plate and face-plate and is provided with heads 8, 9 between which the wire is wound. The annular securing-member 10, which is provided with a left-hand thread, is screwed on to the face-plate and has an aperture 10<1> with an extension 10<a>. When the extension is in alignment with the slot 5' in the nest-plate, the core is inserted and the securing-member then turned round to clamp it in position. The aligning position is determined by a pin 12 on the securing- member engaging a stop 11 on the face-plate. The end of the wire to be wound is secured in one or other of the spring clips 13 which are carried by the securing-member.
Patent GB-242638-A (GB)
Title: Improvements in or relating to carrier-drive-heads for lace braiding machines
IPC: D04C3/00
Filed: 1925-10-31
Abstract: 242,638. Soc. Anon. des Etablissements Leflaive, and Knecht, J. J. Nov. 5, 1924, [Convention date]. Braiding-machines.- Relates to lace machines in which the bobbins are driven by centre discs 3 and consists in locating the securing means such as the nut 10 on the centre spindle in a hollowed out part of the centre disc below the level of the top plate 2. By this means it is possible to have the bobbin carriers proportionately larger or the carrier drive heads proportionately smaller since the edges of the bobbin carrier shoes 12, 14 may extend nearly to the axis of the carrier drive head. The arms 11 of the centre discs may extend above the level of the race plate 2 so as to act on both shoes 12, 14. Intermittent movement is imparted to the bobbins by sleeves 7 sliding on squared parts of shafts 8 and engaged with or disengaged from teeth 6<1> on continuously rotating intermeshing gearwheels 6 by jacquard action.