baber/WOPTO huggingface dataset:
Patent GB-938163-A (GB)
Title: Improvements in or relating to particle size reduction or cellular disruption
Inventor: CRAIK DEREK JOHN
IPC: B02C19/18
Filed: 1960-09-20
Abstract: A process for reducing the particle size of a particulate material comprises subjecting to ultrasonic vibrations a suspension of the material in a chemically inert liquid in the presence of small chemically inert bodies.  The suspension may be agitated by means of a hollow stirrer.  The inert bodies may be glass beads or stainless steel balls.  The inert liquid, which may contain a surface active agent, may be water, a volatile substantially anhydrous liquid e.g. benzene or ether or a solution of an ointment base e.g. petroleum jelly, in a volatile liquid. Apparatus for carrying out the process comprises a combination of an ultrasonic transducer and a vessel containing small inert bodies, the combination being arranged such that the inert bodies may be subjected to ultrasonic vibrations.  The transducer may be attached to the base of a vessel containing the inert bodies.  In an alternative, an inner vessel may contain the inert bodies and an outer vessel have the transducer attached thereto, the space between the vessels containing a liquid.  In a further alternative, a probe with attached ultrasonic transducer may be inserted in a vessel containing the inert bodies.  The apparatus may have inlet and outlet means so that it may be used on a continuous basis.  Examples are described.ALSO:A process for disrupting cellular material comprises subjecting to ultrasonic vibrations a suspension of the material in a chemically inert liquid in the presence of small chemically inert bodies.  The suspension may be agitated by means of a hollow stirrer.  The inert bodies may be glass beads or stainless steel balls.  The inert liquid, which may contain a surface-active agent, may be water, a volatile substantially anhydrous liquid, e.g. benzene or ether or a solution of an ointment base e.g. petroleum jelly, in a volatile liquid in which case after the process has been completed, the volatile solvent is easily removed to leave a highly dispersed suspension of the fine particles in the ointment base.  Apparatus for carrying out the process comprises a combination of an ultrasonic transducer and a vessel containing small inert bodies, the combination being arranged such that the inert bodies may be subjected to ultrasonic vibrations. The transducer may be attached to the base of a vessel containing the inert bodies.  In an alternative, an inner vessel may contain the inert bodies and an outer vessel have the transducer attached thereto, the space between the vessels containing a liquid.  In a further alternative, a probe with attached ultrasonic transducer may be inserted in a vessel containing the inert bodies.  The apparatus may have inlet and outlet means so that it may be used on a continuous basis. Examples are described of the subdivision of procaine penicillin, a steroid, staphylococcus aureus, yeast and sulphur.
Patent GB-433017-A (GB)
Title: Improvements in artificial slabs
Filed: 1934-11-09
Abstract: 433,017. Slabs for floors or walls. UNITED LIMMER & VORWOHLE ROCK ASPHALTE CO., Ltd., 105, Salisbury House, Finsbury Circus, London.-(Assignees of Lattorf, R., 61, Lattorfstrasse, Ahlem, near Hanover, Germany) Nov. 9, 1934, Nos. 32329 and 32330. Convention dates, April 13 and Oct. 12. [Class 87 (i)] A slab for paving or other building purposes and having sound and heat insulating properties is provided with an upper or wearing surface of artificial stone, formed of granular natural stone of rough texture with a matrix such as Portland cement mortar, united with an underlayer of asphalt with or without other ingredients. One method of forming the slab is by spreading a layer, about ¥in. thick, of moderately heated asphalt powder in the bottom of a mould, adding a layer, about lin. to 1¢in. thick, of the artificial stone mass made with the minimum content of water, and immediately exerting on the two layers a pressure of seven to eight and a half thousand pounds per square inch. Cast mastic asphalt may be substituted for the powdered asphalt. In an alternative method dispensing with pressure other than manual tamping, hot mastic asphalt, preferably with the addition of small pieces of cork, asbestos, pumice, wood peat, or similar fibrous materials, is poured into a mould to a depth about ¥in. and its surface sprinkled with dry grit. After the asphalt has been cooled (either by air or water), a layer, about ¥in. to 1¢in. thick, of the artificial stone mass is applied in a liquid consistency like that of plaster. The slabs may be tessellated, or coloured, or provided with a separate coating layer, and the under surface of the asphalt layer may be roughened for laying in mortar in the usual manner.
Patent GB-874907-A (GB)
Title: Improved paper clip
IPC: B42F1/08
Filed: 1956-10-24
Abstract: 874,907. Paper clips. CHAUN, K. W. Oct. 11, 1957 [Oct. 22, 1956], No. 32448/56. Class 44. A paper clip is formed of a length of resilient wire which is bent to form a front part of U-shape which is adapted to engage the front face of a sheaf of papers to which the clip is fitted and a pair of rear parts of U- shape which are adapted to engage the back of the sheaf, the outer side limbs A of the rear parts being joined by bends in the wire to the side limbs B of the front part and the inner side limbs H of the rear parts being located adjacent each other, wherein the side limbs of the front part are located between and are adapted to press the paper between the limbs of the respective rear parts of the clip and wherein the inner limbs of the rear parts are adapted to engage and press the paper between the limbs of the front part. The limbs B of the front part are bent so that a portion of each is aligned with the limbs of the rear part and the base C is bent to allow easy insertion of the paper.
Patent GB-1485523-A (GB)
Title: Coating composition
IPC: C08L81/06
Filed: 1974-07-23
Abstract: 1485523 Coating composition IMPERIAL CHEMICAL INDUSTRIES Ltd 21 May 1975 [23 July 1974] 32496/74 Headings C3R and C3P A coating composition comprises a polyphenylene sulphide polymer, a thermoplastic aromatic polysulphone polymer and a fluorocarbon polymer, (e.g. polytetrafluoroethylene). There may be 10% to 80% of each ingredient in the composition. The polymers may be mixed as powders, melted together or dispersed in a liquid medium, e.g. water or an organic liquid. They may be coated on substrates with or without a liquid medium and the coating may be heated. Fillers and pigments, e.g. carbon black, and dispersing agents may be included in the composition. An example is given.
Patent GB-373279-A (GB)
Title: Knitting machines
IPC: D04B9/06
Filed: 1931-02-23
Abstract: 373,279. Knitting machines. MAY HOSIERY MILLS, Chestnut Street, Nashville, Tennessee, and HEMPHILL CO., 131, Clay Street, Pawtucket, Rhode Island, both in U.S.A. Feb. 23, 1931, No. 32601. Convention date, Feb. 21, 1930. Divided application. [Class 74 (ii).] An intermediate wheel 192 mounted upon a removable bracket 197 is provided in the gearing by means of which the needle dial is driven from the needle cylinder. A wheel 190 secured to the needle cylinder meshes with the wheel 192 and drives a sleeve 204 and shaft 205. Worm and worm wheel gearing are provided between the shaft 205 and a shaft 51 carrying the needle dial.
Patent GB-832575-A (GB)
Title: Improvements in or relating to high voltage electric cable installations
IPC: H02G15/06
Filed: 1957-10-18
Abstract: 832,575. Cooling cables. COMPAGNIE GENERALE D'ELECTRICITE. Oct. 18, 1957 [May 21, 1957], No. 32604/57. Drawings to Specification. Class 36. A high-voltage cable installation comprises at least one cable having a fluid-tight central channel and an external fluid-tight sheath enclosed in a pressure resistant conduit, the channel being connected to the spaces within the conduit for the circulation of cooling oil. The channel at one end of the cable is connected, in the cable end sleeve, with an insulating tube which passes to a pump and a cooling coil which communicates with the space within the conduit. A similar arrangement at the other end of the cable establishes a ,continuous circuit for the circulation of cooling oil. The conduit may contain three cables, each terminated in the same manner. Specification 491,200 is referred to.
Patent GB-160580-A (GB)
Title: Improvements in connection with semi-rotary and other pumps
IPC: F04B53/10
Filed: 1919-12-30
Abstract: 160,580. Langdon, A. G. Dec. 30, 1919. No Patent granted (Sealing fee not paid). Strainers; valves, arrangement of; valves, facilitating removal of.-An additional foot suction valve positioned above a strainer is placed in a chamber formed in the suction pipe of a rotary or other pump. A side cover f can be removed to allow the valve c and strainer g to be taken out of the chamber b formed in the suction pipe a leading to the pump i. The movement of the valve c is limited by a projection h on the side cover. Specifications 5583/98, [Class 110, Rotary engines &c.], 15529/02, and 6017/03, [Class 110, Rotary engines &c.], are referred to.
Patent GB-534107-A (GB)
Title: Improvements in or relating to filter networks
IPC: H03H7/075
Filed: 1939-12-21
Abstract: 534,107. Impedance networks. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and TERRONI, T. B. D. Dec. 21, 1939, No. 32670. [Class 40 (iii)] A constant-resistance network is formed by connecting in parallel, Fig. 5, or in series, Fig. 7 (not shown), two circuits comprising equal resistances R1, R2 in series with inverse filters Z KS , 7 KSH  of ladder type which are respectivel) mid-series terminated and mid-shunt terminated. One of the two filters serves as a balancing network, and sufficiently good results are obtained by using a single section or a halfsection for this filter, and preferably also for the inverse filter. In practical examples, Figs. 8, 9 (not shown), in which the circuits are in series, the filters are respectively of series-derived and shunt-derived m-type, and in a particular arrangement, Fig. 10, which is advantageous for good matching the balancing filter comprises a midseries terminated half-section of shunt-derived type having m = 0.6, while the inverse filter is series-derived and is terminated in mid-shunt at the output terminals E, F.
Patent GB-137817-A (GB)
Title: Improvements in permutation locks
IPC: E05B37/02
Filed: 1919-12-30
Abstract: 137,817. Kosich, M. Jan. 13, 1919, [Convention date]. Locks, permutation; double-bolt fastenings. - A permutation lock for safes, vaults, &c. is constructed with a hollow handle mounted to project from the closure and movable longitudinally to advance or retract a bolt or bolts arranged in channels in the closure, the lock mechanism being mounted in the handle and adapted for variation. The handle H comprises an outer member 16 fitting over, and secured by a screw 18 to, an inner member 15, and is linked by bars C to bolts B movable in channels 1 in a door D. The member 15 carries a sleeve 26 having internal flanges 28, which space apart tumblers 25, Fig. 7, mounted on a central spindle 5 supported at 6 on the door and forming at 21 a guide for the handle H. The tumblers are slotted at 29 to slide, when suitably positioned over projections 24 on the spindle, enabling the handle to be pushed in to shoot the bolts and advancing the screw 18 within the recess 20 in the door. Each tumbler is fitted with a ring 33, Fig. 9, carrying numerals and a projection 34 which may be engaged with any of a series of holes 35 in the tumbler prior to assembly of the handle parts. Setting of the tumblers is affected by the fingers through slots in the sleeve 26 and members 16, which may be fitted with a cover-plate 32. The setting may be varied by rotary adjustment of the spindle 5, for which purpose it is fitted with an arm 11 carrying a hinged pawl adapted to be engaged with a toothed ring 9 fixed to the inner side of the door, a removable keeper-plate 13 serving to retain the pawl in adjusted engagement.
Patent GB-263304-A (GB)
Title: Improvements in road vehicle signalling apparatus
IPC: B60Q1/34
Filed: 1925-12-28
Abstract: 263,304. Wade, R. S. Dec. 28, 1925. Order apparatus.-In a device comprising a divided lamp casing with transparent or translucent signs illuminated by lamps controlled by a multiway switch, the casing is provided with a unitary support for the lamps consisting of a block or casting with a central hole for an insulated plug for the terminals and with radial holes or branches fitted with lamp holders. The support may be integral with the partitions dividing the casing and with the back supporting plate thereof. In he form shown in Figs. 1 to 3, the support comprises a rim 3, radial partitions 4, a central hub 5 and fillets 6 of cast metal or other material and enclosed in a thin sheet metal casing 2 with a back plate 2<1> to which is attached a supporting bracket 7 for the number plate illuminated through an aperture 10 in the casing 2. A spring wire 20 in the beading of the casing 2 supports a stencilled plate or glass plate 21 bearing transfers of the desired signs 22 and a red disc 12 to act as a rear light. The fillets 6 are bored to receive tubes 8 forming screw or bayonet type lamp holders and the hub 5 receives a plug 13 of insulating material in which is embedded the terminal rods 14; the rods 14 make contact with screws 16 passing through insulated plugs 15 in the tubes 5, the screws 16 making contact directly or through springs 16<1> with the lamp contacts. In the form shown in Fig. 9, the unitary support is constituted by a back plate 2<1>, ribs extending therefrom and fillets 6, the outer casing being attached thereto by screws and lugs 56. A modification of the lamp holder and contact is shown in Fig. 1, the spring 16<1> acting upon a contact plunger 62 slidable in a metal plug 63. Indicators.-The lamps of the various signs are controlled by a switch as shown in Figs. 4 and 5. The switch comprises a casing 25 having on its front face a three-way intersecting guide slot 27 - - 29 and a back plate 31 of insulating material with a set of contacts 32 - - 34. The casing 25 carries a bearing plate 37 for the spring-pressed ball 43 of the contact lever 30. The contacts 32 - - 34 are arranged around a slight indentation 39 in the plate 31 corresponding to the neutral position of the lever. A pilot lamp 46 is mounted in a socket on the back plate and one of its contacts is connected through the pillar support 40 and casing to the contact. lever 30, the other contact being connected, to one lead of the battery. Each of the contacts 32 - - 34 is connected to its appropriate lamp, the return being through the casing 1 to the other battery lead; by this arrangement whenever one of the lamps 50 - - 52 is illuminated the pilot lamp 46 is lit to give an indication that the signal is effective. The circuit for the lamp 23<1> for the rear signal is maintained irrespective of the position of the contact lever 30 by direct connections to the battery.
Patent GB-159389-A (GB)
Title: Improvements relating to apparatus for waving or curling the hair
IPC: A45D2/14
Filed: 1919-12-31
Abstract: 159,389. Quain Electric Co., Ltd., and Spink, J. R. Dec. 31, 1919. Hair-curling appliances.-A support a upon which the hair is coiled preparatory to moist heat treatment is of tapered form, and provided with fine spiral or circular grooves b to prevent the hair from slipping down the support. A tapered pin e, with a slit e<1> in which a binding tape may be engaged, is inserted in a recess c at one end of the support, so that by rotation of the pin the coil of hair may be tightened.
Patent GB-968020-A (GB)
Title: Improvements in or relating to endless conveyors
Inventor: CUMMING JOHN
IPC: A47L15/24
Filed: 1963-08-20
Abstract: 968,020. Dish-washing machines. G. S. BLAKESLEE & CO. Aug. 20, 1963, No. 32954/63. Heading A4F. [Also in Division B8] Stainless steel links 27 of an endless conveyer used in a dishwashing machine are provided with fingers 31 in the form of a loop and are supported on cross rods 13 by downwardly opening loops 32, 33. These loops are enclosed by a protective cap 34 having a hub 37 through which rod 13 passes. The caps have upstanding transverse ribs 38 which provide slideways extending the width of the conveyer for supporting trays containing smaller articles. Caps 35 fit over the fingers 31 and are secured by rivets 40. The arrangement of the endless side chains and of a series of spray heads is similar to that described in Specification 929,067. U.S.A. Specification 2,981,401 also is referred to.
Patent GB-663357-A (GB)
Title: Improvements in and relating to the extrusion of metals
IPC: B21C23/32
Filed: 1949-12-23
Abstract: 663,357. Extruding. COMPTOIR INDUSTRIEL D'ETIRAGE ET PROFILAGE DE METAUX. Dec. 23, 1949 [Jan. 19, 1949], No. 32980/49. Class 83 (iv). A method for extruding metals comprising inserting between the ingot and the die an incombustible material having a viscous melting, e.g. glass, to act as a lubricant, is characterized in that at least a part of said material is used in the form of a fibrous mass. In an embodiment a parcel of glass fibre 4 is placed between the die 6 and a glass plate 5 in a container 1 before the ingot 3 is extruded through the die by the plunger 2. The glass fibre parcel may be placed between the ingot 3 and the glass plate 5 or the glass plate may be placed between two glass fibre parcels or several glass plates and fibre parcels in any order may be interposed. Specifications 607,285 and 607,287 are referred to.
Patent GB-484322-A (GB)
Title: Improvements in the manufacture of adhesives
IPC: C09J161/00
Filed: 1936-12-02
Abstract: Adhesives are prepared by mixing solutions of hardenable synthetic resins with saturated solutions of boric acid anhydride, or ortho, meta or tetraboric acid with or without the addition of softening and hardening agents and fillers.  Suitable resins include condensation products of phenol, urea or acetone with formaldehyde; suitable softening agents include polymers of acrylic acid esters or vinyl acetate; suitable hardening agents include alkyl sulphates, oxychlorides, hydroxylamine hydrochloride and benzene trichloride.
Patent GB-920351-A (GB)
Title: Improvements relating to vent or release valve devices for compressed fluid braking apparatus
IPC: B60T15/54
Filed: 1960-09-27
Abstract: 920,351. Fluid-pressure brakes. COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE. Sept. 27, 1960 [Oct. 7, 1959], No. 33110/60. Class 103 (1). A vent or release valve device for compressed fluid braking apparatus comprises chambers 6 and 7 for connection to an auxiliary reservoir and a brake cylinder respectively, and connected by passage 5 closable by a valve 11 controlled by a single piston 48 which normally closes vent passages 51, 52 between chamber 7 and atmosphere, the piston being exposed to atmosphere on the underside and on the other side by brake pipe pressure via conduit 57 acting to maintain valve 11 open and passages 51, 52 closed, and a manually-operated member 19 for actuating a pilot valve 55 for delivery of compressed fluid from the auxiliary reservoir to the underside of the piston 48 to cause it to move upwardly and close the valve 11, the valve then being maintained closed by auxiliary reservoir pressure, brake pipe pressure (if present) returning the piston to an intermediate position (Fig. 2), blocking connection between the brake cylinder and atmosphere, and (if absent) resulting in piston 11 being maintained clear of the vent passage 51. A vent or release valve disclosed above is provided for instance in a railway compressed-air braking system so that when a vehicle equipped with such apparatus is detached from its train, the brake pipe is disconnected and may be left open to atmosphere the vent or release valve device releasing the compressed fluid in the braking system whilst sealing the auxiliary reservoir from atmosphere. Specification 850,450 is referred to.
Patent GB-394680-A (GB)
Title: Improvements in last holders
IPC: A43D117/00
Filed: 1931-11-30
Abstract: 394,680. Last-holders. SEXTON, H. J. and LEVEY, H. J., St. Mary's Works, Norwich. Nov. 30, 1931, No. 33119. [Class 17 (i).] A last-holder is formed with a tapered slot 1 to accommodate a complementally shaped portion of a last and an upstanding peg 5 in the slot to fit a hole in the last. Preferably, a plurality of such slots and pegs are provided in a bar 2 mounted in a tray 7, and the taper is both horizontal and vertical.
Patent GB-491940-A (GB)
Title: Improvements in and relating to regulators for the excitation of dynamo electric machines
IPC: H02P9/08
Filed: 1936-12-03
Abstract: 491,940. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 3, 1936, No. 33211. Void. Convention date, Dec. 5, 1935. [Class 38 (iv)] In an arrangement for regulating the voltage or wattless energy delivered to a line by a generator 2, Fig. 1, having a grid-controlled rectifier 4 fed from the generator output through a transformer 1 to supply its excitation, failure of the excitation on the occurrence of an overload or short-circuit which causes the line voltage to reduce is avoided by providing the rectifier with additional anodes 42 connected to higher voltage tappings 322 the supply to the exciting winding being switched to these anodes when the overload &c. occurs. Fig. 2 shows an arrangement for effecting automatic control and for altering the excitation in the event of overload &c. Arms 14, 15 are moved over a potentiometer 16, 161 by means of measuring instruments 12, 13 respectively one being supplied from an adjustable standard 2 and the other with a voltage proportional to the variable to be regulated. The voltage across the resistance between the arms 14, 15 will therefore be proportional to the deviation and is applied to the adjusting means 8, Fig. 1, of the phase shifting transformer 71 controlling the grids of the rectifier 4. If the voltage K3 falls to such a value that the arm 15 contacts with the resistance 161 a circuit is completed through the contacts 152, 153 which operates a relay to change from the low voltage set of anodes to the high voltage set. In order to obtain rapid response a relay 4 responsive to rate of change of voltage for completing the circuit c, b through a switch 5 is provided. A relay 6 may be provided for opening the normal circuit a, b when the circuit c, b is closed. The rectifier may be provided with several sets of anodes connected to different voltages, control being effected by subdividing the segment 153 according to the number of sets.