baber/WOPTO huggingface dataset:
Patent GB-221076-A (GB)
Title: Improvements in or relating to holders for diaries, desk pads, and the like
IPC: B42D5/04
Filed: 1923-08-24
Abstract: 221,076. Buncher & Haseler, Ltd., and Rodgers, R. C. Aug. 24, 1923. Writing-pads; block holders; retainers for pens and pencils.-A holder for a diary, desk pad, &c. comprises a base plate 1 with means for clamping the diary so that its leaves can be turned over, and a member 8 upwardly extending above the base plate on the side towards which the leaves open and holding a leaf in the open position by engaging its free edge. The base 1 may be stamped from a single piece of sheet metal formed with integral stamped-up spring clips 3, 4 and side flanges 6 to hold the diary 7, with a groove 2 to receive a pen or pencil and a support 3<a> at the front, and with a downwardly-extending rear support 5 adjacent to the clips 3, 4 and support. ing the plate 1 in an inclined position on a desk. The member 8 is stamped from a second piece of sheet metal bent at 15 and slotted at 9, 10 along the line of bending, the clips 3, 4 being passed through the slots 9, 10 so that, when the clips engage the diary 7, the bent part 11 of the plate 8 is held against the base 1 and the plate 8 is retained in an upwardly-inclined position, an overhanging hook 12 facing forwards at the upper end of the plate 8 engaging an open leaf 13. The parts 11, 5 are of the same length and the part 5 'has a bent-over edge 14 so that, when the plate 8 is separated from the clips 3, 4 for transport, it may be placed against the underside of the plate 1 with the part 11 against the part 5 and under the edge 14.
Patent GB-152832-A (GB)
Title: Improvements in centrifugal and screw pumps
IPC: F04D3/00
Filed: 1919-09-02
Abstract: 152,832. Moody, L. F. Sept. 2, 1919. Casings; impeller blades.-A pump specially suitable for handling large volumes of water under low head comprises an admission chamber 23<1> with spiral passages which passes water to the impeller 40 with a velocity compounded of motion parallel to the axis and rotation about the axis; the velocity may be due to the initial head of water above the pump. The impeller 40 is of substantially axial-flow type and for high speeds may be of slightly inward-flow form; the vanes are designed to increase the whirl of the water. The outlet chamber is bounded by conical walls, giving increased area and consequent reduction of velocity of the body of water from the impeller to the discharge casing 35, which is of spiral form wrapped round the outlet chamber, and is of increasing section -such as to reduce the velocity throughout the spiral. Several forms of pump and details of suitable forms of vanes are described.
Patent GB-585510-A (GB)
Title: Improvements in or relating to machines for compressing closures on receptacles by hydraulic pressure
Filed: 1944-11-03
Abstract: 585,510. Capsuling bottles &c. BRUUN, O. J. Nov. 3, 1944, No. 21593. [Class 125 (ii)] A capsule is compressed on the mouth of a receptacle, e.g., a bottle which is positioned inside a flexible rubber cup 3 by applying hydraulic pressure generated by a piston 7 actuated by a hand lever 20 pressing on a flexible diaphragm 4 which closes an aperture in a hydraulic chamber 1 enclosing the cup 3. A spring 5 returns the piston. A stop 8 limits the motion. In another form a flat diaphragm 4 is used and this may be thinner than that shown so that when pressed in it conforms to the shape of the piston.
Patent GB-1406885-A (GB)
Title: Ordered sequential copolyamides
IPC: C08G69/08
Filed: 1972-06-14
Abstract: 1406885 Ordered sequential co-poly(aminoacids) GOODYEAR TIRE & RUBBER CO 14 June 1972 [14 June 1971] 21595/72 Heading C3R A method of preparing regular sequential copolyamides comprises forming a monomer consisting of at least 2 different aminoacids (at least one not being alpha) linked internally by amide groups and having a terminal azide group and another terminal group able to react therewith to form an amide link, and polymerizing said monomer by reacting the terminal groups. In examples the other terminal group is the amino-hydrobromide; it may also be the hydrochloride or sulphate. Numerous aliphatic, alicyclic, heterocyclic and aromatic amino acids are specified. Specific examples describe the monomer preparation and polymerization for nylons 3, 4; 3, 6; 2, 6; 3, 4, 6 and alanine-paminobenzoic acid copolyamide. Other specified copolymers are nylons 2, 3; 2, 4; 2, 5; 3, 5; 3, 10; 4, 5; 4, 6; 4, 10; 4, 12; 2, 3, 4; 2, 4, 5; 2, 5, 6; 3, 4, 5 and 4, 5, 6 and copolymers of alanine with m- or p-aminobenzoic, 1-amino-4-cyclohexanoic or 4-aminonicotinic acid and of gammaaminobutyryl and 1-amino-4-cyclohexanoic acids. The copolymers may have intrinsic viscosities (m-cresol/25‹ C.) above 0À3; are soluble in dichloroacetic acid and hot dimethyl formamide; and may be melt shaped to fibres or films, cast to films from solutions or injection moulded. The aliphatic copolymers are fairly soluble in mcresol.
Patent GB-425162-A (GB)
Title: Reservoir hair dye brush and bleaching appliance
IPC: A46B11/00
Filed: 1934-07-19
Abstract: 425,162. Reservoir brushes. ORENTREICH, S., 54, Sedlescombe Road, Fulham, London. July 19, 1934, No. 21693/33. [Class 19] A reservoir brush or pad for dyeing or bleaching the hair is characterized in that the body portion is formed in two detachable parts 29, 30 incorporating between them an adjustable valve 34 controlling the liquid flow. A separate brush 19 detachably mounted is used in dyeing and a container with rubber bulb 23 which is detached for filling. Liquid flow is controlled by the needle valve 34 housed within the parts 29, 30 of the body and screwed together at 31 with a sealing washer 32. The valve 34 is screwed on to a pipe 35 fixed in the body, a hole 36 in the valve giving access to a chamber 33. The needle 34 co-operates with a port 37 in a disc 38 disposed in a chamber 39 formed round an inner tube 24 of the body in the second part thereof. The disc is fixed to a pipe 40 rotatably mounted in the tube 24 and is threaded externally adjacent the disc 38 to engage the body. An operating member 42 on a circumferential slot gives a coarse adjustment of the valve, but a finer one is given by screwing the parts 29, 30 together against the scaling rung 32 ; the finer adjustment allows control of the bulb 23 to distend after compression. When bleaching the hair, a device as in Fig. 5 is used surrounded with cotton wool. Also, in place of a brush, sponge, a felt pad, or rubber bristles may be used.
Patent GB-436682-A (GB)
Title: Improvements relating to braking apparatus for vehicles
IPC: B60L7/24
Filed: 1934-07-24
Abstract: 436,682. Fluid-pressure brakes. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Stevens, R. R. ; Forest Hills, Pennsylvania, U.S.A.) July 24, 1934, No. 21694. Convention date, July 26, 1933. [Class 103 (i)] In brake apparatus for vehicles comprising a fluid-pressure brake valve 1 electrically controlled by a pedal 2 also controlling an electric brake whenever the pedal is operated to effect an electric brake application the fluid pressure brake is arranged to be applied after a predetermined time interval. The electric brake is a regenerative or eddy current brake the circuit of which is closed by a contact 37 operated by the brake pedal 2 which by means of a contact finger 42 closes a circuit for an electromagnet valve 48, which admits fluid from main reservoir 3 to a cylinder and piston 58, 59 adapted to operate the brake valve j. A choke 65 delays the operation of the brake valve 1 to allow the electric brake to slow the vehicle until the reduced speed renders the electric brake ineffective. The piston 59 operates the arm 30 of the brake valve by means of a stud 66 which may be adjusted with clearance as shown so that the piston 59 produces only a partial brake application. The brake valve is of the self-lapping type and comprises an inlet valve 13, and an exhaust valve 9 operated by the arm 30 through a spring 25 and a diaphragm 5 on which acts the pressure in the brake cylinder 4. The brake valve may be directly operated by the pedal 2 by means of a slotted link 31.
Patent GB-644060-A (GB)
Title: Process of obtaining chorionic gonadotropic hormone
IPC: A61K38/24
Filed: 1947-08-07
Abstract: Chorionic gonadotropic hormone may be obtained from human pregnancy urine by adsorption of said hormone and associated impurities from said urine on to an ion exchange (e.g., zeolite) adsorbent and thereafter selectively desorbing and separating the hormone from the impurities, the desorbing steps being characterized by first desorbing mainly impurities from the absorbent by means of a substantially neutral mixture of water and a water-miscible organic solvent in concentrations of 60-95 per cent containing ammonium ions and thereafter treating the adsorbent with a substantially neutral mixture of water and a water-miscible organic solvent in concentrations of 10-50 per cent containing ammonium ions, whereby mainly hormone is removed from the adsorbent.  The solvent may be acetone, dioxane or an aliphatic alcohol containing four or less carbon atoms of which ethyl alcohol is preferred.  An ammonium salt of an organic carboxylic acid, particularly ammonium acetate, which salt is soluble in the particular solvent used, is the preferred source of ammonium ions.  In the example, urine is clarified by centrifuging, acidified to a pH 3.5 by glacial acetic acid, reclarified and passed through a bed of synthetic zeolite for several days, the rate of flow being maintained by overnight water washings. Adsorbed impurities are removed by an aqueous wash liquor containing ammonium acetate and 75 per cent by volume of ethyl alcohol and the hormone is then obtained by eluting the column with a 40 per cent by volume ethyl alcohol liquor containing ammonium acetate and adjusting the ethyl alcohol strength of the eluate to 85 per cent by volume. The hormone may be further purified by washing separately with 95 per cent ethyl alcohol and acetone.  The Specification as open to inspection under Sect. 91 states that solutions containing ammonium hydroxide or sodium ions may be used in the desorbing steps.  This subject-matter does not appear in the Specification as accepted.
Patent GB-705026-A (GB)
Title: Improvements in or relating to an optical projection apparatus
IPC: G03B21/06
Filed: 1951-09-17
Abstract: 705,026. Optical projection apparatus. WATERWORTH, E. N. Sept. 17, 1951 [Sept. 18, 1950], No. 21754/51. Class 97(1) An episcopic projector comprises a carriage for a plane original, a plane surface on which the carriage is movable in two directions perpendicular to each other and to the axis of a lens which projects an image on to a screen, and illuminating means comprising a light source and condenser and a lens and prism to concentrate the light beam on to the original. As shown, the original is clamped between a glass plate 5 and a resiliently mounted plate 6, both mounted on a carriage 15 on a baseplate 16. Brackets 17 on the carriage embrace a rod 18 and impose lateral, but not vertical constraint. The rod 18 is secured to a rod 19 slidable in fixed brackets 20 by rack and pinion 23, 22 actuated by a knob 21 to produce longitudinal movement of the carriage 15. Transverse movement along the rod 18 is produced through a rack 29 engaged by a pinion on a shaft 27 squared or splined to be slidable in a bevel pinion 26 meshing with a pinion 25 rotatable by a knob 24. The baseplate 16 is grooved to prevent accumulation of dirt in the way of the carriage 15. The illumination system shown in Fig. 3 includes a condenser 7 and a tapered prism 9, to which are secured lenses 8, 10 to concentrate light on the portion of the original below the objective 12. The projection beam is reflected by a mirror 14 to form an image on the screen 13. The lower part of the apparatus is enclosed by a casing, part of which is shown at 36.
Patent GB-838374-A (GB)
Title: Improvements in and relating to cash registers or cash tills
Inventor: CASTLETON ALBERT EDWARD
IPC: A47B88/20
Filed: 1958-07-08
Abstract: 838,374. Tills. LAMSON PARAGON Ltd. July 8, 1958 [July 9, 1957], No.. 21780/57. Class 116 A cash receiving tray 2, having fixed coin bowls 4 and a note compartment 5, is provided with a removable coin bowl unit A having side walls 10 extending below the base of the coin bowls 9 such that when the unit is in position in the compartment 8 in the tray, a space is provided beneath the bowls 9 to accommodate bank notes. When the unit A is removed, the compartment 8 provides an additional note compartment.
Patent GB-839287-A (GB)
Title: Improvements in or relating to apparatus for the storage and loading of piece goods
Inventor: AMELUNG GUSTAV
IPC: B65G1/08
Filed: 1958-07-08
Abstract: 839,287. Spiral storage shoots. MIAG MUEHLENBAU UND INDUSTRIE G.m.b.H. July 8, 1958, No. 21836/58. Class 78 (1). A plurality of shoots 1 store sacks and discharge them selectively upon an endless belt which delivers them upwards to vehicle 9. Pivoted brake shoes 7 are provided in slots in the shoots to brake the sacks as they slide, and pivoted gates 2 control the discharge of the sacks, and central control means 14, 15 are provided for the shoes and the gates.
Patent GB-778299-A (GB)
Title: Improvements in or relating to devices having windows for transmitting high frequency electromagnetic power
Inventor: VAUGHAN JAMES RODNEY MITCHELL
IPC: H01P1/08
Filed: 1954-07-27
Abstract: 778,299. High-frequency discharge apparatus. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 7, 1955 [July 27, 1954], No. 21850/54. Class 39(1). [Also in Group XL(b)] An output window for a klystron or magnetron comprises a plate of refractory material having a single optic axis, the plate being sealed across an apertured diaphragm and the optic axis being so orientated that reflections which arise in the window and at the edge of the diaphragm are mutually cancelling. A plate 2 of artificial sapphire (crystalline alumina) may be sealed to a pair of diaphragms 3, 4 made of a nickelcobalt-iron alloy. The seal may be made by applying powdered glass to the joint and healing the assembly to fuse the glass. The edges 5, 6 of the diaphragm are welded to the waveguide 1. With this construction cancellation of reflections from the edge of the plate 2 is obtained by arranging the optic axis 15 of the window parallel to the waveguide axes. In another construction, Fig. 2 (not shown) one of the diaphragms 3, 4 is omitted and cancellation of reflections is obtained by arranging the optic axis at an angle to the waveguide axes,
Patent GB-576009-A (GB)
Title: Improvements in or relating to the manufacture of sulphur trioxide
IPC: C01B17/69
Filed: 1943-12-31
Abstract: 576,009. Stripping sulphur trioxide from oleum. DU PONT DE NEMOURS & CO., E. I., BRADLEY, J. J., and REGENBRECHT, A. Dec. 31, 1943, No. 21922. [Classes 1 (ii) and 32] An apparatus for stripping sulphur trioxide from oleum comprises a furnace 15 having an arch 18 over a heating chamber 16, one or more elongated tubes 1 each embedded in the arch with its axis horizontal so that its lower external surface, excluding all projections or joints, is exposed to heating medium in the heating chamber while the upper external surface is exposed to the atmosphere, an inlet 4 for supplying oleum to one end of each tube, an outlet 5 for withdrawing stripped oleum from the other end while maintaining a predetermined level of oleum therein, outlets 7 and 8 for withdrawing gaseous sulphur trioxide, and baffles 12 for impeding the flow of oleum. The tubes may be constructed of steel using welded joints and the latter together with the welded caps 2 and 3 and the various inlets and outlets, are isolated from the heating medium. The heating medium may be hot gases from a burner 14 which are discharged through the stack connection 17. The feed is regulated by observing the temperature of the oleum adjacent the outlet end by means of the thermometer well 11. Thus if the rate of feed is regulated so that the temperature here is about 225‹C. then all but about 2 to 5 per cent. of the available sulphur trioxide will have been stripped from the oleum.
Patent GB-479603-A (GB)
Title: Improvements in or relating to alternating current electric switches
IPC: H01H33/70
Filed: 1936-08-10
Abstract: 479,603. Gas-blast switches. GENERAL ELECTRIC CO., Ltd., and GARRARD, C. J. O. Aug. 10, 1936, No. 21978. [Class 38 (v)] In an A.C. switch in which the arc gap is swept by a stream of gaseous fluid, after a delay of a period of approximately half a cycle or somewhat longer from the separation of the contacts, a medium having a stronger deionizing effect than the gaseous fluid is supplied to the arc gap. In the arrangement shown, the movable contact 2 is carried by a piston 4 movable in a cylinder 6, and is normally pressed against the fixed contact 1 by a spring 12. The contacts are separated by admitting an air blast through the pipe 7. After an interval of approximately half a cycle, deionizing medium in the form of liquid ammonia is supplied to the arc gap through a pipe 26. The liquid ammonia is stored in a chamber 15 connected by a pipe 16 to a space 23 in a cylinder 17 formed on the bottom of the cylinder 6. A piston 20 movable in the cylinder 17 is connected to the main piston 4, and a lower piston 21 is loosely mounted on a pin 22 secured to the piston 20. When the piston 21 reaches the bottom of the cylinder 17, the space 23 comes opposite the pipe 26, and the further movement of the piston 20 forces the liquid ammonia from the space 23 through the pipe into the arc gap. In a modification, Fig. 2 (not shown), the first part of the contactseparating movement opens a valve and admits a predetermined amount of liquid ammonia to an intermediate chamber, and the second part of the movement closes this valve and forces the trapped ammonia into the arc gap. In other arrangements, a liquid such as water is delivered to the arc gap, or the movable contact is drawn beneath the surface of a liquid after a delay of half a cycle or more from the separation of the contacts, the constructions shown in Figs. 3 and 4 of Specification 475,370 being modified for this purpose.
Patent GB-1144942-A (GB)
Title: Improvements in or relating to mechanical digging apparatus
Inventor: TURNER PHILIP WILSON
IPC: E02F3/32
Filed: 1966-05-18
Abstract: 1,144,942. Shovel excavators. BARSYKE Ltd. 16 May, 1967 [18 May, 1966, 15 Sept., 1966], Nos. 21979/66 and 41263/66. Heading E1F. In a tractor-mountable shovel excavator unit there is provided a cam-actuated linkage for causing lateral swinging of a shovel-carrying boom as the boom is swung upwards. Two embodiments of the linkage are described. In one embodiment the cam has several cam tracks that permit, by controlled entry of a cam follower into an appropriate track, of swinging of the boom to one side or the other of the centre line of the unit or of locking it on said line against lateral movement with respect thereto. In the other embodiment only a single track 18 is provided in the cam so that the linkage 92 can only swing the boom 56 from off the centre line of the excavator unit to the side thereof on which the linkage 92 is positioned. For movement of the boom to the other side the linkage must be repositioned on that side between the follower and the boom. A manually over-rideable, cam-controlled valve 22 is also provided on the boom 56 for automatically causing swinging of the dipper stick 70 of the unit relative to the boom in a predetermined manner as lateral swinging of the boom occurs.
Patent GB-336631-A (GB)
Title: Improvements in or relating to grinding wheels
IPC: B24D5/06
Filed: 1929-07-17
Abstract: 336,631. Carborundum Co., Ltd., (Carborundum Co.). July 17, 1929. Wet grinding.-In a grinding-wheel built up of segmental abrasive blocks 6 mounted on a metal drum 2 and held in position by dovetailed ribs 5, expansion joints are provided between the segments and between the segments and the drum to allow for changes of temperature of the wheel. The joint between the drum and the segments consists of paper 8 laid on the drum, over which is then applied a layer of cement, for example, a cement consisting of 95 per cent sulphur and 5 per cent ground coke, and the joints between the segments consist of a layer of paper 8, preferably corrugated, embedded in cement 11 of the same composition; the cement is poured in whilst molten, the wheel being assembled in a clamp and heated prior to pouring in the cement. The paper is from <1>/32" to <1>/16" thick; in place of the paper, press board, fibre board, wood veneer, or an elastic cement may be employed. Specification 319,200 is referred to.
Patent GB-154725-A (GB)
Title: Improvements in or relating to valves and the like
IPC: F16K31/52
Filed: 1919-09-08
Abstract: 154,725. Burden, C. H., (Wilson, W. G.). Sept. 8, 1919. Closure members; wedging.-A valve is actuated by a lever mechanism so arranged as to give a powerful leverage in one direction to secure a slight initial opening, and a reduced leverage in another direction to complete the opening. The application to the oscillating-disk type of valve is shown, the valve member being mounted slidably in an arm c<1> slotted at c' to engage a fixed pin c and actuated by a crank d' rotated by a handle d. The slot may be arranged between the crank and the valve, either longitudinally or transversely of the arm. Modifications are described in which the valve member is first lifted from its seat and then turned to one side.
Patent GB-932142-A (GB)
Title: Method of increasing annealing point of high silica glass
IPC: C03B32/00
Filed: 1961-06-19
Abstract: 932,142. Treating silica glass. CORNING GLASS WORKS. June 19, 1961 [June 27, 1960], No. 22081/61. Class 56. To increase the annealing point of a glass article having a SiO 2  content of at least 94% obtained by leaching glass of lower SiO 2  content with acid to produce a porous glass body and heating to consolidate the glass, the porous glass body is exposed in an ammonia-containing atmosphere to a temperature of 900-1050‹ C. and is consolidated in a non-oxidising atmosphere at a temperature of 1300-1350‹ C. Preferably the consolidation atmosphere is a vacuum but alternative atmospheres are of nitrogen, carbon monoxide, carbon dioxide, helium, neon, argon or forming gas. Specification 442,526 is referred to.
Patent GB-884494-A (GB)
Title: Improvements in or relating to photographic materials
Inventor: MACDONALD ERIC
IPC: C09B50/00
Filed: 1959-06-26
Abstract: Examples are given of the preparation of formazan dyes of the general formula R1-N=N-C(R2)=N-NH-R3 wherein R1 and R3 are aryl or substituted aryl groups and R2 is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, aralkyl, hydroxy, carboxy or nitrile, by reacting a diazonium salt with a hydrazone R2CH=N-NH-R3.  In these examples, R1 and R3 are phenyl, tolyl, chlorophenyl, sulphophenyl, carboxyphenyl, sulphonamidophenyl or 4-dodecyl-2(or 3) sulphophenyl, and R2 is H, methyl, ethyl, propyl, phenyl or dodecoxyphenyl.
Patent GB-787799-A (GB)
Title: Improvements in or relating to centrifugal clutches
IPC: F16D43/18
Filed: 1956-07-17
Abstract: 787,799. Friction clutches. REGIE RATIONALE DES USINES RENAULT. July 17, 1956 [July 18, 1955], No. 22098/56. Class 80 (2). In a centrifugal friction clutch with frictionfaced spring-retracted centrifugal weights 3 movable radially on the driving member 2 and co-operating with a driven drum 6, one group of uniformly-distributed weights 3<SP>1</SP> have such mass or spring loading that they establish contact with the drum at a substantially lower speed than the other weights. As shown, the weights have common retracting garter springs 5, in which case the weights 3<SP>1</SP> are of smaller mass than the other weights; but, where the weights have individual springs, the weights 3<SP>1</SP> may be of the same mass as the other weights and have weaker springs. The friction facings of the weights 3<SP>1</SP> may have a smaller coefficient of friction. There may be several groups of weights such as to come into engagement at stepped speeds.