baber/WOPTO huggingface dataset:
Patent GB-1271881-A (GB)
Title: Improvements in or relating to devices for use in cryosurgery
IPC: A61B17/30
Filed: 1970-03-26
Abstract: 1,271,881. Cryosurgical devices. LINDE A.G. 26 March, 1970 [29 March, 1969], No. 14708/70. Heading A5R. A cryosurgical device comprises a doublewalled cup 5 with nipple 6 for applying suction to the tissue to be treated, and inlet and outlet tubes 10, 11 respectively for supplying a coolant 9 to the space between the walls 7, 8 of the cup 5. The device is said to produce a localised cooling effect on tissue, such as tonsils, sucked into the cup 5 which is preferably made of metal.
Patent GB-496232-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/00
Filed: 1937-05-27
Abstract: 496,232. Guards for slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd., and THOMAS, H. May 27, 1937, No. 14716. [Class 80 (iv)] In a slicing-machine of the kind, for example, in which a loaf &c. is fed step-by-step from a loading tray 11 past a knife located in a housing 12 to a slice receiver, a guard is provided in association with the loading tray, and/or with the slice receiver, which is displaceable between a closed position, in which the loaf is exposed to the knife, and an open position, in which the guard exposes the loaf but masks the knife. As shown in Fig. 1, the guard comprises an open-ended box 16 having a separate front wall 15 which is provided with a top flange 15a pivotally attached at 18 to the top 14 of the box and with a rolled edge 22 to serve as a finger grip, the box itself being clipped to the usual driving shaft casing tube 24 and also secured to the loading tray. Preferably, the front wall is curved at 28 so that, when open, it maintains close relationship with a flange 29 around the aperture 13 of the knife housing. If desired, the guard may be provided with means such as a rod for engagement with a manually turnable fly-wheel or, in an electrically driven machine, with a switch, for preventing opening of the guard except when the machine is stopped and for locking the machine against operation when the guard is open. Where guards are fitted on each side of the knife, the two guards may be interconnected by a linkage so that they are opened and closed simultaneously.
Patent GB-296471-A (GB)
Title: Improvements in or relating to feed mechanisms for use with slicing machines
IPC: B26D7/06
Filed: 1927-06-01
Abstract: 296,471. Coulson, E. June 1, 1927. Variable-speed ratchet gearing. - In a slicing- machine, the pawl 8 engaging the ratchet wheel 7 on the feed screw, is controlled by an annular member 6 having an internal cam face 6<b>. The member 6 is rotatably mounted on a support projecting from the side of the carriage 3 and is adjusted, to regulate the period of engagement of the pawl and consequently the slice thickness, by a rod 5 hinged to a pivoted member 4 actuated by a knob 4a, carrying a graduated slice-thickness scale 4<a>. The pawl is pressed into engagement with the ratchet 7 by a spring 12 and is mounted on a bell crank 10 oscillated by levers 13, 14, the latter being pivoted at 15 to the carriage 3 and having an end roller 16 engaging with a cam truck 17a. To disengage the pawl 8 from the ratchet wheel, an annulus 6<c>, freely revoluble and having an internal cam surface similar to that of the annulus 6, is moved anticlockwise by an attached handle 6<c>. When the machine is restarted, the projection 6<d> on the annulus 6<e> contacts with a stop 19 on the base 18, the annulus 6<e> being thus rotated clockwise and the pawl re-engaged with the ratchet.
Patent GB-968559-A (GB)
Title: Improvements in power transmission and speed reduction apparatus
IPC: F16H57/02
Filed: 1962-04-17
Abstract: 968,559. Control of motors. FALK CORPORATION. April 17, 1962 [June 21, 1961], No. 14859/62. Heading H2J. [Also in Divisions F1 and F2] An electric motor 12 has reduction gearing mounted on its output shaft 11 and a reaction pin assembly 84 is adapted to cause the motor to stop when the force developed between the reaction lug and reaction pin reaches a preselected magnitude. The assembly 84 comprises a spring-pressed plunger 85 located in a housing 86 and adapted to actuate a switch 91 connected to the power source of the motor 12. The housing 86 and switch 91 are carried by the motor mount 70.
Patent GB-647483-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28D7/10
Filed: 1947-06-05
Abstract: 647,483. Tubular heat exchangers. HYDROCARBON RESEARCH, Inc. June 5, 1947, No. 14869. Convention date, June 12, 1946. [Class 64 (iii)] A heat exchanger, e.g. for use in the rectification of air, comprises a shell 15 containing units each comprising concentric tubes 32, 33 forming with the shell three longitudinally extending zones for the flow of three gases, each zone being divided into a multiplicity of closely spaced, longitudinally extending channels by their metal walls 34, 35, 36. In each space inside, around and between each pair of tubes, a number of thin metal sheets, bent as shown and separated by narrow gaps, extend along the length of the tubes. The bent sheets 34 are shaped to fill spaces of hexagonal or other polygonal outline, so as to be contiguous. The spaces between the cylindrical shell 15 and the outermost of the sheets 34 are subdivided by plates 50 and filled with crumpled aluminium foil, wood blocks or other packing. The spaces between the tube plates 19, 20 and around the ends of the outer tubes 33 are connected by openings 22, 25 with annular manifolds 23, 26. The inner tubes 32 are reduced in diameter near their ends. When the shell is of nickel steel and the tubes are of copper, the shell has expansion joints 18. Alternatively, however, the shell, tubes, and metal sheets may be of aluminium. In use, oxygen flows continuously through the annular spaces between the tubes of each pair, but the nitrogen and air alternate in flowing one through the inner tubes and the other through the spaces around the outer tubes. The Specification as open to inspection under Sect. 91 comprises also arrangements in which one or more of the bent metal sheets are replaced by disc-like or annular fins as described in Specification 647,484. This subject-matter does not appear in the Specification as accepted.
Patent GB-226774-A (GB)
Title: Improvements in cold processes for drawing and rolling metals
IPC: B21B3/00
Filed: 1924-06-20
Abstract: 226,774. Lattre, J. G. de, and Hardy, H. Dec. 29, 1923, [Convention date]. Alloys.-Prior to being drawn or rolled, metal is provided with an anti-friction lubricating coating by dipping it into a molten alloy of such hard and soft metals as do not form a solid solution. A suitable alloy is stated to be one consisting of 60 per cent of lead, 2 per cent of nickel, 10 per cent of tin and 28 per cent of copper.
Patent GB-781809-A (GB)
Title: Carotenoid recovery
IPC: C07C57/13
Filed: 1955-05-24
Abstract: Extractable substances occurring naturally in the seed pulp of Bixa orellana are obtained by treating the dry whole seed thereof or the crude extract obtained after evaporating the solvent from the filtrate obtained after heating the dry whole seeds with a polar organic liquid or a mixture of a polar organic liquid and a nonpolar organic liquid and removing the insoluble portion, with an unheated non-polar organic liquid, separating the insoluble constituents heating the solution to vaporize the non-polar-liquid to leave a substantially bixin-free viscous oleoresinous liquid soluble in both non-polar and polar organic liquids, dissolving the nonpolar organic liquid insoluble constituents in a heated polar organic solvent or a heated mixture of a polar solvent and a non-polar organic solvent therefor, cooling the solution to cause crystallization of the cis-bixin, separating the crystallized cis-bixin, evaporating the solvent from the crystal-free solution to leave a resinous solid product soluble in cold polar organic liquids and substantially insoluble in non-polar organic liquids and comprising a major portion of the trans-bixin originally present in the crude extract.  To avoid decomposition the extractions are effected below 100 DEG  C.  As polar organic liquid there may be employed ethanol, propanol, methanol and acetone and as non-polar liquids chloroform, trichloroethylene and propylene dichloride may be employed.  The cold extraction of the oleoresinous fraction may be effected with petroleum ether. In an example the dry seeds are first extracted with ethanol and trichloroethylene and the extract thus obtained is extracted in the cold with petroleum ether to obtain the oleoresinous residue; the petroleum ether insolubles are dissolved in hot ethanol and trichlorethylene and the solution cooled to obtain cis-bixin; the crystal-free filtrate is concentrated by distillation and transbixin obtained therefrom.  Other alternative procedures are described.
Patent GB-283408-A (GB)
Title: Improvements in clamps for high tension electric cables
IPC: H01R4/36
Filed: 1927-06-07
Abstract: 283,408. Berg, F. June 7, 1927. Clips and holders for cables and conductors.-A clamp for attaching high tension cables to supports or to insulators, either of upright or hanging type, consists of a hookshaped body 2 into which a clamping-piece c is introduced, the cable b being gripped between the member c and the body a of the clamp by means of a screw d which is introduced into the base of the hooked portion. The member c has a groove for the reception of the cable b and a recess for the end of the screw d. A lug 8 on the member c engages in a groove 9 on the body a and assists in resisting the twisting of the member c in the hook. Other lugs, 11, on the member c engage in recesses 10 in the hook and prevent the endwise displacement of the member.
Patent GB-221553-A (GB)
Title: The manufacture and production of a new composition of matter or synthetic gum
IPC: C08G8/00
Filed: 1923-06-09
Abstract: Synthetic resins are produced by effecting reaction between a phenolic body and starch, or its modifications such as glycogen and dextrin, and subsequently adding a hardening agent, the process being preferably anhydrous.  In an example, phenol and starch are first condensed to a fusible resin by boiling under a reflux condenser with sulphuric acid.  Excess of phenol is removed in vacuo, the resin dissolved in alcohol, and a hardening agent, such as hexamethylenetetramine, anhydroformaldehydeaniline, anhydroactealdehyde-aniline, or dimethyl sulphate, added.  The resin may then be subjected to heat with or without pressure to produce the infusible modification.  As phenols may be employed o-, m-, and p-cresols, naphthols, thymol, carvacrol, chlorphenol, bromphenol, nitrophenols, phenolsulphonic acid &c., and as catalysts pyridine, bromine, sulphur monochloride, aniline hydrochloride &c.  The catalyst may, if necessary, be subsequently removed.  The resins may be employed as electrical insulators, for waterproofing and reinforcing sheet material such as paper, fibre, textile fabrics, asbestos or parchmentized membranes, and for the manufacture of laminated plates, tubes, rods, moulded articles, gear wheels, pulleys &c.  Reference has been directed by the Comptroller to Specification 208,193.
Patent GB-1420280-A (GB)
Title: Fastener package
IPC: B25B23/04
Filed: 1974-04-05
Abstract: 1420280 Fastener package NORDISK KARTRO AB 5 April 1974 [5 April 1973] 15220/74 Heading B8C [Also in Division B4] A fastener package comprises a flat disc 10, perhaps of cardboard, around the periphery of which are carried fasteners 11, such as screws or nails. The fasteners project through apertures 12 having radial slots 13 so that the underside of the heads of the fasteners contact the disc. A foil may cover the upper surface of the disc to help retain the fasteners. Preferably the apertures 12 are located in a peripheral downwardly projecting rib 15 which is received in a correspondingly shaped recess in the top surface of a drum which together with the carrier forms a magazine for an automatic screwing or nailing device. The drum is provided with shank retaining and guiding tubes extending from the recessed face of the drum to the other face (see Figs. 3-8, not shown).
Patent GB-1420361-A (GB)
Title: Sound-slide projector
IPC: G03B23/02
Filed: 1973-03-29
Abstract: 1420361 Audio-visual apparatus MINNESOTA MINING & MFG CO 29 March 1973 [30 March 1972 (2)] 15252/73 Heading G5R A flexible annular magnetic record 29, rotatably mounted on a slide 26 which carries a central transparency 28 for projection, is driven by a frusto-conical capstan 45 cooperating with a pinch roller 47, th axis of the capstan 45 passsing through the centre point of the annular record 29. A recording/ playback magnetic head 68 is pressed against the record 29 by a spring 74 and follows a guide groove in the record surface until it closes contacts 80, 81, energizing a solenoid 98 to move an idler wheel 109 into engagement with the rotating capstan flywheel 49 and initiate movement of a sliding member 22, 24, 25 which first returns the slide 26 to its slot 20 in a slide tray 14, the head 68 and pinch roller 47 being retracted from the record and the head 68 being returned to its start position, and then, the tray 14 having been moved on one step by a gear wheel 19, pushes the next slide into the projection position (in which the slide does not entirely leave its slot in the tray 14). The first slide is moved into the projection position manually by means of a handle 23 secured to the sliding member 22, 24, 25. A suitable slide 26 is the subject of Specification 1,420,362.
Patent GB-518467-A (GB)
Title: Improvements in lens systems
IPC: G02B9/12
Filed: 1938-05-23
Abstract: 518,467. Lenses. KODAK, Ltd. May 23, 1938, No. 15262. Convention date, May 22, 1937. [Class 97 (i)] In a photographic objective comprising a simple dispersive component 2 between a simple collective component 1 and a compound collective component 3, 4, the collective element 4 has a refractive index greater than 1.75, a dispersive index at least 15 per cent. greater than that of the dispersive elements 3, and a " high combined refractive and dispersive index" as defined in Specification 462,304, [Group XXIII]; the dispersive element 3 may have a'refractive index greater than 1.70, or greater than 1.65 and less than 1.75. The collective element 4 may, alternatively, have a refractive index greater than 1.70, and the dispersive element 3 a refractive index greater than 1.60 and and less than 1.70, and a dispersive index less than that of the element 4. The dispersive element 3 may be cemented either to the front or rear surface of the collective element 4. Glass as described in Specification 462,304, [Group XXIII], may be used ; data for two examples are set out in the Specification. According to the Specification as open to inspection under Sect. 91, the sum of the absolute values of the radii of curvature of the two surfaces of the compound component may be greater than 0.9 times the focal length of the objective, the radius of the front surface may be less than that of the rear surface, and the radius of the cemented surface may be greater than one third of the focal length. Other relations between the surfaces and spacings are also set out. This subject-matter does not appear in the Specification as accepted.
Patent GB-732610-A (GB)
Title: Improvements in and relating to universal joints
IPC: F16D3/40
Filed: 1953-06-03
Abstract: 732,610. Universal joints. SANTESMASES, J. C. June 3, 1953 [June 24, 1952], No. 15351/53. Class 80 (2). The four arms 19 of the intermediate member 18 of a Hooke's joint have spherical ends 19<SP>1</SP> freely journalled between pairs of bearing parts 23, 24 mounted in hollow members 12 secured to the driving and driven parts 10, 14 and provided with slots 27 for the passage of the arms. Each part 24 is loaded by a spring 26 abutting against a plug 25 adjustably screwed into the member 12. The arms 19 may be integral with or detachably secured to the member 18.
Patent GB-1045414-A (GB)
Title: Fruit grading installation
IPC: B07B13/075
Filed: 1965-04-12
Abstract: 1,045,414. Endless conveyers. C. RODA. April 12, 1965 [April 17, 1964], No. 15376/65. Heading B8A. [Also in Division B2] An endless chain conveyer for delivering fruit to a grading machine (see Divisions B1- B2), carries rollers R past stationary guide plates P which are so shaped with sloping sides and projecting members W for jolting the rollers that fruit such as pears are turned to an upright position before reaching the discharge end of the conveyer.
Patent GB-1174653-A (GB)
Title: Method of making Rigid Polyurethane Foams and Siloxane Additives therefor
IPC: C08J9/00
Filed: 1967-04-04
Abstract: 1,174,653. Polyorganosiloxanes; polyurethane foam. DOW CORNING CORP. 4 April, 1967 [2 May, 1966], No. 15387/67. Headings C3C, C3R and C3T. Polyorganosiloxanes, useful as surfactants in the preparation of rigid polyurethane foams, have one of the average formula In each formula R is a saturated C 1-10  hydrocarbon radical; A is a radical -D(OC 2 H 4 ) f G where D is an alkylene radical and G is -OCOR, OCOOR or OCONHR, f having an average value of 9 to 30; a is 0 or 1; b has an average value of 6 to 192, c from 0 to 30, d from 3 to 30 and e from 1 to 30. The ratio of OSi(CH 3 ) 2  to the OSi(CH 3 )A and/or OSi(CH 3 ) 2 A units in the siloxane ranges from 2 : 1 to 6 : 1. In preferred siloxanes A is a radical of in which f is 12 and R is an ethyl radical.
Patent GB-399601-A (GB)
Title: Improvements in and relating to electrical contacts
IPC: H01R13/18
Filed: 1932-05-31
Abstract: 399,601. Plug couplings. YOUNG, R. W., 62, Castle Road East, Warley Woods, Smethwick, Staffordshire. May 31, 1932, No. 15403. [Class 38 (i).] An electrical coupling comprises two relatively movable sleeves d, e, having tapered surfaces and embracing a plurality of independently movable segments a of conducting material and springs h, i acting on the sleeves so that their tapered surfaces coact with similar surfaces b, c on the segments a to press the latter into contact with the rod or plug n forming the other contact element. The segments are formed with abutments f for the springs, and are attached to a block k by flexible arms j and so form a highly resilient socket. In a modification, the central abutment portion is omitted and only a single spring is then necessary.
Patent GB-642461-A (GB)
Title: Improvements in or relating to radio remote control systems for use on vehicles
IPC: B61L11/08
Filed: 1946-05-21
Abstract: 642,461. Inductive control of conductor and track points. ROBINSON, R. S., WAYNE KERR LABORATORIES, Ltd., and JACKSON AUTOMATIC ELECTRIC CONTROLS, Ltd. May 21, 1946, No. 15413. [Classes 104 (i) and 104 (iii)] Devices which condition the path of travel of a vehicle, such as overhead conductor points or track points, are operated from the vehicle by a radio frequency transmitter on the vehicle and a local receiver adjacent each such device, which receiver energizes a relay through which the device is operated. The transmitter, Fig. 2, comprises a loop 10 and oscillator valve 17 with a filament 18 continuously energized by a 24-volt accumulator on the vehicle, a hightension generator being switched in by the driver when required and a timing condenser 19 being provided. The receiver, Fig. 1, comprises a loop 11 connected in series with a condenser 14 to a full-wave metal rectifier 12 feeding a relay 13 and parallel condenser 15. The relay contacts close a circuit 16 for operating the device. Different devices situated close together on the track may have differently tuned receivers, so that the tuning condenser 19 may select the appropriate device. The transmitter may be arranged above or below the vehicle for conductor or track points, the receiver being arranged either on the conductor spreaders or between the rails respectively and being of sufficient size to overlap the loop of the vehicle transmitter whatever the vehicle position across the path of travel.
Patent GB-1084782-A (GB)
Title: Improvements in or relating to electric supply apparatus
Inventor: COPPLESTONE DONALD SIDNEY
IPC: G05F1/573
Filed: 1964-04-14
Abstract: 1,084,782. Automatic voltage control. ADVANCE ELECTRONICS Ltd. July 14, 1965 [April 14, 1964], No. 15499/64. Heading G3R. A power supply arrangement comprises input terminals 20, 21; output terminals 22, 23; a series regulating transistor VT1 associated with a drive transistor VT2; a transistor VT3 which compares a fraction of the output voltage, as detected by a voltage divider VR1, R2, R3 and R4, with a reference voltage derived from a Zener diode MR1 and which controls transistor VT1 over transistors VT4, VT2 in dependence upon output voltage variations; a current-sensing circuit which includes a series resistor R9, a comparator transistor VT5, a potential divider R10, VR2 and R11, and an auxiliary reference source B2, and which controls VT1 to reduce the output current to terminal 22 when the voltage across resistor R9 rises above a particular value; and a further control transistor VT6 which is connected to the potential divider VR1, R2, R3, R4 so that it receives a slightly greater proportion of the output voltage than VT3. The arrangement is such that transistor VT3 effects the necessary control for normal or slow-acting variations; for short-circuit and similar conditions, however, the normal control is superseded by control by VT6 which acts to cut-off transistor VT1 by way of transistors VT7 and VT5. The time constant of response of transistor VT3 is slowed by means of a delay circuit R21, C2 so that the circuit is not responsive to very rapid, but not dangerous amplitudes, of voltage change.
Patent GB-888086-A (GB)
Title: Improvements in or relating to a sheet bending machine for producing tubular elements and plant including application of the said machine
IPC: B21D5/01
Filed: 1960-05-03
Abstract: 888,086. Bending sheets to tubular form. COMPAGNIE DE PONT-A-MOUSSON. May 3, 1960 [May 6, 1959], No. 15504/60. Class 83 (4). A machine for bending sheets to tubular form comprises a single anvil suspended by a flat plate from a plurality of frames, bending device, and hydraulic actuating means therefor, being carried in front of each frame to co-operate with the anvil to bend a sheet. A sheet t is positioned on guides 17 against a pivoted stop 36 and its rear end is contacted by abutments 18 on a rack 19. A plurality of hydraulic rams V1 are then actuated to raise a series of bending members 13a, 13b, adjustable towards each other, to engage the end part of the sheet t and bend it against an anvil 7 carried by a plate 4 supported by a plurality of frames 2, each frame being associated with a ram V1, the stop 36 being raised by a bending member 13b. The rams V1 are then lowered and a ram V2 is actuated to move the rack 19 and thus the sheet t towards the anvil 7. The next section of the sheet t is then bent and the successive feeding and bending is carried on until a half-tube has been formed. The rack 19 is then withdrawn by an electric motor and the bent sheet pulled out of the machine and then fed in again, the unbent half first. The sheet in tubular form may then be withdrawn and welded. In one arrangement, Fig. 13, embodying two bending machines M1 and M2, a sheet t<SP>1</SP> is fed by a conveyer T1 to the feed means B1 of the machine M1 wherein a half-tube t2 is formed. This is withdrawn by an extractor U1 and fed to the machine M2 which completes the tube T. This is extracted by means U2 and transferred to one of two conveyers Y which carries it to means Z to weld the longitudinal edges. The sheets may be bent up at the edges before being presented to the bending machines.
Patent GB-221571-A (GB)
Title: Thermionic valve holder
IPC: H01R33/94
Filed: 1923-06-14
Abstract: 221,571. Humphrys, W. E. H. June 14, 1923. Vacuum tubes. - The grid socket C and leg D of a valve adapter are discontinuous, as shown, and are provided with terminals E, F so that a battery or other device may be connected in the grid circuit or a through connection effected. The sockets a and legs b for the anode and filament are continuous. The adapter may be of cylindrical shape and of ebonite or hard rubber.